Horizontal well collaborative cold production method and device

Abstract

The invention provides a horizontal well collaborative cold production method and device, and relates to the technical field of oil exploitation. According to the thickness of the oil layer and the formation pressure, the height difference between the lower-layer horizontal well and the bottom of the oil layer and the height difference between the upper-layer horizontal well and the lower-layer horizontal well are determined; according to the oil layer thickness and the formation pressure, the horizontal distance between the adjacent upper-layer horizontal wells and the adjacent lower-layer horizontal wells is determined; according to the height difference between the lower-layer horizontal wells and the bottom of the oil layer, the height difference between the upper-layer horizontal wells and the lower-layer horizontal wells and the horizontal distance between the adjacent upper-layer horizontal wells and the adjacent lower-layer horizontal wells, the cold production position of each upper-layer horizontal well and the cold production position of each lower-layer horizontal well are determined; according to the oil layer thickness, the formation pressure and the cold production positions of each upper-layer horizontal well and each lower-layer horizontal well, the production pressure difference of the upper-layer horizontal wells and the lower-layer horizontal wells is determined; and sending a message instruction for carrying out collaborative cold production on the oil layer by utilizing each upper-layer horizontal well and each lower-layer horizontal well.

Description

Technical Field

[0001] The invention relates to the technical field of oil production, and in particular to a horizontal well coordinated cold production method and device. Background Art

[0002] This section is intended to provide a background or context to the embodiments of the invention recited in the claims. No admission is made that the description herein is prior art by inclusion in this section.

[0003] At present, the oil fields that have been put into production in the heavy oil belt are generally developed by horizontal well cold production. The horizontal well network is a single-layer network, that is, a single-layer horizontal well network is deployed near the bottom of the oil layer. Since the thickness of the oil layer in the heavy oil belt is generally large, the use of a single-layer horizontal well network will result in uneven utilization of reserves within the layer. Therefore, it is necessary to deploy two layers of upper and lower horizontal wells in the oil layer to carry out coordinated cold production of the oil layer. In the prior art, the same production pressure difference is used for each horizontal well, but due to the uneven spatial distribution of formation pressure, the use of the same production pressure difference for the upper and lower horizontal wells will cause the upper horizontal well to degas quickly, resulting in the inability to continue oil production; in addition, the coordinated cold production of the upper and lower horizontal wells has a certain overlap in the oil leakage areas of the two horizontal wells due to the small vertical well spacing of the upper and lower horizontal wells, which will cause certain interference and affect the oil production efficiency. Summary of the invention

[0004] In an embodiment of the present invention, a horizontal well coordinated cold production method is proposed to fully produce the oil layer, improve the oil production efficiency, and avoid degassing of the horizontal well, including:

[0005] Obtain oil layer thickness and formation pressure;

[0006] According to the oil layer thickness and the formation pressure, determine the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well; wherein each lower horizontal well is located on a first horizontal plane, and each upper horizontal well is located on a second horizontal plane;

[0007] According to the oil layer thickness and formation pressure, determine the horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells;

[0008] According to the height difference between the lower horizontal well and the bottom of the oil layer, the height difference between the upper horizontal well and the lower horizontal well, the horizontal distance between adjacent upper horizontal wells, and the horizontal distance between adjacent lower horizontal wells, the cold production position of each upper horizontal well and each lower horizontal well is determined;

[0009] Determine the production pressure difference between the upper horizontal well and the lower horizontal well according to the oil layer thickness, formation pressure, and the cold production position of each upper horizontal well and each lower horizontal well; wherein the production pressure difference of each upper horizontal well is the same, and the production pressure difference of each lower well is the same;

[0010] After determining the production pressure difference between the upper horizontal well and the lower horizontal well, a message instruction is issued to use each upper horizontal well and each lower horizontal well to carry out coordinated cold production of the oil layer.

[0011] In an embodiment of the present invention, a horizontal well coordinated cold production device is proposed to fully produce the oil layer, improve the oil production efficiency, and avoid degassing of the horizontal well, including:

[0012] The first parameter acquisition module is used to obtain the oil layer thickness and formation pressure;

[0013] The height difference determination module is used to determine the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well according to the oil layer thickness and the formation pressure; wherein each lower horizontal well is located on a first horizontal plane, and each upper horizontal well is located on a second horizontal plane;

[0014] A horizontal distance determination module is used to determine the horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells according to the oil layer thickness and the formation pressure;

[0015] A cold production position determination module is used to determine the cold production position of each upper horizontal well and each lower horizontal well according to the height difference between the lower horizontal well and the bottom of the oil layer, the height difference between the upper horizontal well and the lower horizontal well, the horizontal distance between adjacent upper horizontal wells, and the horizontal distance between adjacent lower horizontal wells;

[0016] The production pressure difference determination module is used to determine the production pressure difference between the upper horizontal well and the lower horizontal well according to the oil layer thickness, the formation pressure, and the cold production position of each upper horizontal well and each lower horizontal well; wherein the production pressure difference of each upper horizontal well is the same, and the production pressure difference of each lower well is the same;

[0017] The coordinated cold production control module is used to send out a message instruction for coordinated cold production of the oil layer using each upper horizontal well and each lower horizontal well after determining the production pressure difference between the upper horizontal well and the lower horizontal well.

[0018] In an embodiment of the present invention, a computer device is proposed, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements a horizontal well collaborative cold production method when executing the computer program.

[0019] In an embodiment of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, a horizontal well collaborative cold production method is implemented.

[0020] A computer program product is proposed in an embodiment of the present invention. The computer program product includes a computer program. When the computer program is executed by a processor, a horizontal well collaborative cold production method is implemented.

[0021] The horizontal well coordinated cold production method and device proposed in the embodiment of the present invention can solve the problems of uneven utilization of reserves in the middle layer in the prior art, and the problems of easy degassing and low oil production efficiency in the horizontal wells; the embodiment of the present invention obtains the thickness of the oil layer and the formation pressure; according to the thickness of the oil layer and the formation pressure, determines the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well; wherein each lower horizontal well is located on a first horizontal plane, and each upper horizontal well is located on a second horizontal plane; according to the thickness of the oil layer and the formation pressure, determines the horizontal distance between adjacent upper horizontal wells, and the horizontal distance between adjacent lower horizontal wells; according to the height difference between the lower horizontal well and the oil layer bottom, determines the height difference between the upper horizontal well and the lower horizontal well; The cold production position of each upper horizontal well and each lower horizontal well is determined according to the height difference of the bottom of the layer, the height difference between the upper horizontal well and the lower horizontal well, the horizontal distance between the adjacent upper horizontal wells, and the horizontal distance between the adjacent lower horizontal wells; the production pressure difference of the upper horizontal well and the lower horizontal well is determined according to the thickness of the oil layer, the formation pressure, and the cold production position of each upper horizontal well and each lower horizontal well; wherein the production pressure difference of each upper horizontal well is the same, and the production pressure difference of each lower well is the same; after determining the production pressure difference of the upper horizontal well and the lower horizontal well, a message instruction is issued to use each upper horizontal well and each lower horizontal well to perform coordinated cold production on the oil layer. The embodiment of the present invention can determine the cold production position of each upper horizontal well and each lower horizontal well, realize full exploitation of the oil layer, improve oil production efficiency, set the production pressure difference for the upper horizontal well and the lower horizontal well respectively, and avoid degassing of the horizontal well. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 is a schematic flow chart of a horizontal well coordinated cold production method according to an embodiment of the present invention;

[0024] Figure 2 is a specific example diagram of the horizontal well coordinated cold production method in an embodiment of the present invention;

[0025] Figure 3 is a specific example diagram of the horizontal well coordinated cold production method in an embodiment of the present invention;

[0026] Figure 4is a specific example diagram of the horizontal well coordinated cold production method in an embodiment of the present invention;

[0027] Figure 5 is a specific example diagram of the horizontal well coordinated cold production method in an embodiment of the present invention;

[0028] Figure 6 is a specific example diagram of the horizontal well coordinated cold production method in an embodiment of the present invention;

[0029] Figure 7 is a specific example diagram of the horizontal well coordinated cold production method in an embodiment of the present invention;

[0030] Figure 8 is a specific example diagram of the horizontal well coordinated cold production method in an embodiment of the present invention;

[0031] Fig. 9 is a specific example diagram of the horizontal well coordinated cold production method in an embodiment of the present invention;

[0032] Fig.10 is a specific example diagram of the horizontal well coordinated cold production method in an embodiment of the present invention;

[0033] Fig.11 is a schematic diagram of a horizontal well coordinated cold production device in an embodiment of the present invention;

[0034] Fig.12 is a specific example diagram of a horizontal well coordinated cold production device in an embodiment of the present invention;

[0035] Fig.13 Schematic diagram of a computer device in an embodiment of the present invention.

[0036] Reference numerals:

[0037] 1-housing, 2-inlet, 3-first flow guide chamber, 4-first flow guide hole, 5-second flow guide chamber, 6-second flow guide hole, 7-first base, 8-second base, 9-baffle, 10-first connecting rod, 11-first rotating shaft, 12-second connecting rod, 13-fixed shaft, 14-second rotating shaft, 15-third connecting rod, 16-conduction plate, 17-follow-up float, 18-iron sheet, 19-conduction chamber, 20-density floating chamber, 21-float, 22-magnet, 23-third flow guide hole, 24-weak spring, 25-outlet flow guide chamber, 26-outlet, 27-inflow controller, 28-flow channel, 29-sand control screen. DETAILED DESCRIPTION

[0038] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0039] The term "and / or" herein only describes an association relationship, indicating that three relationships may exist. For example, A and / or B may represent the following three situations: A exists alone, A and B exist at the same time, and B exists alone. In addition, the term "at least one" herein represents any combination of at least two of any one or more of a plurality of. For example, including at least one of A, B, and C may represent including any one or more elements selected from the set consisting of A, B, and C.

[0040] In the description of this specification, the terms "include", "including", "have", "contain", etc. are all open terms, which mean including but not limited to. The descriptions with reference to the terms "one embodiment", "a specific embodiment", "some embodiments", "for example", etc. mean that the specific features, structures or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The order of steps involved in each embodiment is used to schematically illustrate the implementation of the present application, and the order of steps is not limited and can be appropriately adjusted as needed.

[0041] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0042] Figure 1 Schematic diagram of the process of the horizontal well coordinated cold production method according to an embodiment of the present invention. Figure 1 As shown, the method includes:

[0043] Step 101, obtaining oil layer thickness and formation pressure;

[0044] Step 102, determining the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well according to the oil layer thickness and the formation pressure; wherein each lower horizontal well is located on a first horizontal plane, and each upper horizontal well is located on a second horizontal plane;

[0045] Step 103, determining the horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells according to the oil layer thickness and the formation pressure;

[0046] Step 104, determining the cold production position of each upper horizontal well and each lower horizontal well according to the height difference between the lower horizontal well and the bottom of the oil layer, the height difference between the upper horizontal well and the lower horizontal well, the horizontal distance between adjacent upper horizontal wells, and the horizontal distance between adjacent lower horizontal wells;

[0047] Step 105, determining the production pressure difference between the upper horizontal well and the lower horizontal well according to the oil layer thickness, the formation pressure, and the cold production position of each upper horizontal well and each lower horizontal well; wherein the production pressure difference of each upper horizontal well is the same, and the production pressure difference of each lower well is the same;

[0048] Step 106, after determining the production pressure difference between the upper horizontal well and the lower horizontal well, a message instruction is issued to use each upper horizontal well and each lower horizontal well to perform coordinated cold production on the oil layer.

[0049] Depend on Figure 1 It can be seen from the process shown that the embodiment of the present invention obtains the oil layer thickness and the formation pressure; according to the oil layer thickness and the formation pressure, determines the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well; wherein each lower horizontal well is located on a first horizontal plane, and each upper horizontal well is located on a second horizontal plane; according to the oil layer thickness and the formation pressure, determines the horizontal distance between adjacent upper horizontal wells, and the horizontal distance between adjacent lower horizontal wells; according to the height difference between the lower horizontal well and the bottom of the oil layer, the height difference between the upper horizontal well and the lower horizontal well, and the height difference between the adjacent upper horizontal wells The horizontal distance between the upper horizontal wells and the horizontal distance between the adjacent lower horizontal wells is used to determine the cold production position of each upper horizontal well and each lower horizontal well; the production pressure difference between the upper horizontal wells and the lower horizontal wells is determined according to the oil layer thickness, formation pressure, and the cold production position of each upper horizontal well and each lower horizontal well; wherein the production pressure difference of each upper horizontal well is the same, and the production pressure difference of each lower well is the same; after determining the production pressure difference between the upper horizontal wells and the lower horizontal wells, a message instruction is issued to use each upper horizontal well and each lower horizontal well to perform coordinated cold production on the oil layer. The embodiment of the present invention can determine the cold production position of each upper horizontal well and each lower horizontal well, realize full exploitation of the oil layer, improve oil production efficiency, set the production pressure difference for the upper horizontal wells and the lower horizontal wells respectively, and avoid degassing of the horizontal wells.

[0050] In order to explain the above-mentioned horizontal well coordinated cold production method more clearly, each step is described in detail below.

[0051] In one embodiment of the present invention, the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well are determined according to the oil layer thickness and the formation pressure, including: according to the oil layer thickness and the formation pressure, using a numerical simulation method to adjust the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well to determine the maximum oil production; according to the maximum oil production, determine the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well.

[0052] Figure 2 It is a specific example diagram of the horizontal well collaborative cold production method in an embodiment of the present invention.

[0053] When implementing it, refer to Figure 2 , input the oil layer thickness, formation pressure, the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well into the reservoir numerical simulator, adjust the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well, and determine the maximum oil production. When the oil production obtained by the reservoir numerical simulator is the maximum, determine the height difference between the lower horizontal well and the bottom of the oil layer as h1, and the height difference between the upper horizontal well and the lower horizontal well as h2; where H represents the oil layer thickness; in addition, in order to ensure the accuracy of the oil production results obtained by the reservoir numerical simulator, the viscosity and density parameters of the crude oil can also be input.

[0054] In specific implementation, the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well are determined according to the following formula:

[0055]

[0056]

[0057] Among them, h1 is the height difference between the lower horizontal well and the bottom of the oil layer, in meters; h2 is the height difference between the upper horizontal well and the lower horizontal well, in meters; H is the thickness of the oil layer, in meters.

[0058] In one embodiment of the present invention, the horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells are determined according to the oil layer thickness and the formation pressure, including: adjusting the horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells according to the oil layer thickness and the formation pressure by using a numerical simulation method to determine the maximum oil production; determining the horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells according to the maximum oil production; wherein the horizontal distance between adjacent upper horizontal wells is the same as the horizontal distance between adjacent lower horizontal wells.

[0059] In the specific implementation, the oil layer thickness, formation pressure, horizontal distance between adjacent upper horizontal wells, and horizontal distance between adjacent lower horizontal wells are input into the reservoir numerical simulator, and the horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells are adjusted in the reservoir numerical simulator to determine the maximum oil production; when the oil production is maximum, the horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells are determined; refer to Figure 2 , the horizontal distance between adjacent upper horizontal wells is the same as the horizontal distance between adjacent lower horizontal wells, both of which are WS.

[0060] Figure 3 It is a specific example diagram of the horizontal well collaborative cold production method in an embodiment of the present invention.

[0061] In one embodiment of the present invention, reference Figure 3 , the oil layer thickness H, formation pressure P, and horizontal distance WS of adjacent horizontal wells of an oil layer are input into the reservoir numerical simulator, and it can be obtained that when the formation pressure P = 9Mpa, the relationship between the horizontal distance WS of adjacent horizontal wells and the oil layer thickness H is WS = 4353.59H (0.79) When the formation pressure P = 8Mpa, the relationship between the horizontal distance WS of adjacent horizontal wells and the oil layer thickness H is WS = 4179.4H -0.79 When the formation pressure P = 7Mpa, the relationship between the horizontal distance WS of adjacent horizontal wells and the oil layer thickness H is WS = 4005.3H -0.79 When the formation pressure P = 6Mpa, the relationship between the horizontal distance WS of adjacent horizontal wells and the oil layer thickness H is WS = 3831.2H -0.79 When the formation pressure P = 5Mpa, the relationship between the horizontal distance WS of adjacent horizontal wells and the oil layer thickness H is WS = 3657.02H (0.79) .

[0062] In specific implementation, the horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells are determined according to the following formula:

[0063] WS=5422.9e -0.044P H 0.79 ;

[0064] Wherein, WS represents the horizontal distance between adjacent upper horizontal wells and adjacent lower horizontal wells; P represents the formation pressure; and H represents the thickness of the oil layer.

[0065] In one embodiment of the present invention, the cold production position of each upper horizontal well and each lower horizontal well is determined according to the height difference h1 between the lower horizontal well and the bottom of the oil layer, the height difference h2 between the upper horizontal well and the lower horizontal well, the horizontal distance WS between adjacent upper horizontal wells, and the horizontal distance WS between adjacent lower horizontal wells. The cold production position reference of each upper horizontal well and each lower horizontal well is Figure 2 , wherein the horizontal position of each upper horizontal well is located in the middle of the positions of the two lower horizontal wells, that is, an upper horizontal well and the two lower horizontal wells form an isosceles triangle.

[0066] At present, the oil fields in the heavy oil belt that have been put into production generally adopt the foam oil horizontal well cold production method for development. The horizontal well network is a single-layer horizontal well, that is, the same development layer is deployed with a single-layer horizontal well network near the bottom of the oil layer. Since the thickness of the oil layer in the heavy oil belt is generally large, the use of a single-layer horizontal well network for development will result in uneven utilization of reserves within the layer. The double horizontal well stereoscopic well network proposed in the embodiment of the present invention, that is, the same development layer deploys upper and lower double-layer horizontal wells at the bottom and middle and upper positions of the oil layer, respectively, can effectively increase the degree of reserve utilization, and by adjusting the cold production positions of the upper horizontal wells and the lower horizontal wells, the cold production development effect is effectively improved.

[0067] In one embodiment of the present invention, the production pressure difference between the upper horizontal wells and the lower horizontal wells is determined according to the oil layer thickness, the formation pressure, and the cold production position of each upper horizontal well and each lower horizontal well, including: adjusting the production pressure difference between the upper horizontal wells and the lower horizontal wells by using a numerical simulation method according to the oil layer thickness, the formation pressure, and the cold production position of each upper horizontal well and each lower horizontal well to determine the maximum oil production; determining the production pressure difference between the upper horizontal wells and the lower horizontal wells according to the maximum oil production.

[0068] During specific implementation, the oil layer thickness, formation pressure, the cold production position of each upper horizontal well and each lower horizontal well, and the production pressure difference between the upper horizontal well and the lower horizontal well are input into the reservoir numerical simulator, the production pressure difference between the upper horizontal well and the lower horizontal well is adjusted, the maximum oil production is determined, and when the oil production is maximum, the production pressure difference between the upper horizontal well and the lower horizontal well is determined.

[0069] Figure 4-Figure 7 It is a specific example diagram of the horizontal well collaborative cold production method in an embodiment of the present invention.

[0070] In one embodiment of the present invention, a reservoir numerical simulator is used to obtain a curve of the relationship between the horizontal well production pressure difference and the formation pressure under conditions of different oil layer thicknesses; when the oil layer thickness is 10m, the curve of the upper horizontal well changing with the formation pressure and the curve of the lower horizontal well changing with the formation pressure are referenced. Figure 4 When the oil layer thickness is 15m, the curves of the upper horizontal well and the lower horizontal well changing with the formation pressure are referenced Figure 5 When the oil layer thickness is 20m, the curves of the upper horizontal well and the lower horizontal well changing with the formation pressure are referenced Figure 6 When the oil layer thickness is 25m, the upper horizontal well and the lower horizontal well change curves with the formation pressure are referenced Figure 7 It can be seen that the production pressure difference of the upper horizontal well is lower than that of the lower well, and the production pressure difference is adjusted according to the change of formation pressure during oil production, which can prevent the upper horizontal well from degassing quickly, causing the upper horizontal well to be unable to continue to produce oil, resulting in a decrease in oil production.

[0071] In one embodiment of the present invention, the production pressure difference of the upper horizontal well is determined according to the following formula:

[0072] ΔP1=(0.0948lnH+0.4788)e 0.158P ;

[0073] The production pressure difference of the lower horizontal well is determined by the following formula:

[0074] ΔP2=(0.0824lnH+0.4165)e 0.1577P ;

[0075] Among them, ΔP1 represents the production pressure difference of the upper horizontal well, in MPa; ΔP2 represents the production pressure difference of the lower horizontal well, in MPa; P represents the formation pressure, in MPa; H represents the oil layer thickness, in m.

[0076] In specific implementation, the production pressure difference between the upper horizontal well and the lower horizontal well is determined according to the following formula:

[0077]

[0078] Among them, ΔP i represents the production pressure difference of the i-th horizontal well, in MPa; a i represents the first correlation coefficient of the production pressure difference of the i-th horizontal well; b i The second correlation coefficient representing the production pressure difference of the i-th horizontal well; c i It represents the third correlation coefficient of the production pressure difference of the i-th horizontal well; when i is 1, it means calculating the production pressure difference of the upper horizontal well; when i is 2, it means calculating the production pressure difference of the lower horizontal well; P represents the formation pressure, in MPa; H represents the oil layer thickness, in m.

[0079] In order to solve the problem of uneven pressure distribution in horizontal well sections and avoid the problem of gas entering the horizontal well sections during oil production, which leads to degassing of the horizontal wells, in one embodiment of the present invention, formation-related parameters are obtained; wherein the formation-related parameters include: permeability, porosity, oil saturation, number of interlayers, longitudinal position of interlayers in the formation, lateral position of interlayers in the formation, one or any combination thereof; according to the formation-related parameters, formation pressure, length of the horizontal well, and the height difference between the horizontal well and the bottom of the oil layer, the position of the first inflow controller in the horizontal well, the number of inflow controllers, and the distance between adjacent inflow controllers are determined; wherein the horizontal well includes an upper horizontal well and a lower horizontal well.

[0080] In one embodiment of the present invention, the position of the first inflow controller, the number of inflow controllers, and the distance between adjacent inflow controllers are determined in the horizontal well according to formation-related parameters, formation pressure, horizontal well length, and the height difference between the horizontal well and the bottom of the oil layer, including: receiving preset parameters of the positions of multiple groups of first inflow controllers, the number of inflow controllers, and the distance between adjacent inflow controllers; according to the formation-related parameters, formation pressure, horizontal well length, and the height difference between the horizontal well and the bottom of the oil layer, using a numerical simulation method, reading the position of each group of first inflow controllers, the number of inflow controllers, and the distance between adjacent inflow controllers in turn to determine the maximum oil production; according to the maximum oil production, determining the position of the first inflow controller in the horizontal well, the number of inflow controllers, and the distance between adjacent inflow controllers.

[0081] During specific implementation, the positions of multiple groups of first inflow controllers, the number of inflow controllers, and the distance parameters of adjacent inflow controllers are preset; the permeability, porosity, oil saturation, the number of interlayers, the longitudinal position of the interlayer in the formation, the lateral position of the interlayer in the formation, the formation pressure, the length of the horizontal well, and the height difference between the horizontal well and the bottom of the oil layer are input into the reservoir numerical simulator, and then the position of each group of first inflow controllers, the number of inflow controllers, and the distance of adjacent inflow controllers are input into the reservoir numerical simulator in turn to determine the position of a group of first inflow controllers, the number of inflow controllers, and the distance of adjacent inflow controllers that output the maximum oil production from the reservoir numerical simulator; wherein, the position of the first inflow controller is determined based on the distance between the first inflow controller and the heel of the horizontal well.

[0082] In another embodiment of the present invention, formation-related parameters, formation pressure, horizontal well length, and height difference between the horizontal well and the bottom of the oil layer are input into a position parameter determination model, and the position of the first inflow controller in the horizontal well, the number of inflow controllers, and the distance between adjacent inflow controllers are output; wherein the position parameter determination model is obtained by training a machine learning model based on historical formation-related parameters, historical formation pressure, historical horizontal well length, historical height difference between the horizontal well and the bottom of the oil layer, and the corresponding historical position of the first inflow controller in the horizontal well, the number of historical inflow controllers, and the distance between historical adjacent inflow controllers.

[0083] In a specific implementation, the permeability, porosity, oil saturation, number of interlayers, longitudinal position of interlayers in the formation, lateral position of interlayers in the formation, formation pressure, length of horizontal wells, and height difference between horizontal wells and the bottom of oil layer are input into the position parameter determination model, and the position of the first inflow controller in the horizontal well, the number of inflow controllers, and the distance between adjacent inflow controllers are output; wherein the position parameter determination model is based on the historical permeability, historical porosity, historical oil saturation, historical number of interlayers, historical longitudinal position of interlayers in the formation, historical lateral position of interlayers in the formation, historical formation pressure, historical length of horizontal wells, and historical height difference between horizontal wells and the bottom of oil layer. The model is determined by setting parameters, historical formation pressure, historical horizontal well length, historical height difference between horizontal well and oil layer bottom, and the position of the historical first inflow controller in the corresponding horizontal well, the number of historical inflow controllers, and the distance between historical adjacent inflow controllers. The machine learning model is trained. The machine learning model can use a fully connected deep neural network model. The input layer of the fully connected deep neural network model contains 9 neurons and the output layer is 3 neurons. The basic principle of the neural network model operation is to transmit signals through forward propagation and transmit errors through back propagation. The weight and bias of each neuron are gradually established according to the training data to obtain the final deep neural network model.

[0084] Figure 8 It is a specific example diagram of the horizontal well collaborative cold production method in an embodiment of the present invention.

[0085] In one embodiment of the present invention, reference Figure 8 , the inflow controller (ICD) includes:

[0086] Shell 1, inlet 2, first flow guide chamber 3, first flow guide hole 4, second flow guide chamber 5, second flow guide hole 6, first base 7, second base 8, baffle 9, first connecting rod 10, first rotating shaft 11, second connecting rod 12, fixed shaft 13, second rotating shaft 14, third connecting rod 15, conduction plate 16, follower float 17, iron sheet 18, conduction chamber 19, density floating chamber 20, float 21, magnet 22, third flow guide hole 23, weak spring 24, outlet flow guide chamber 25, outlet 26;

[0087] The inlet 2 and the outlet 26 are respectively arranged on both sides of the shell 1, the inlet 2 is communicated with the first guide chamber 3, the first guide chamber 3 is communicated with the second guide chamber 5 through the first guide hole 4, the first guide chamber 3 is communicated with the density floating chamber 20 through the third guide hole 23, the magnet 22 is embedded in the float 21, the float 21 is placed in the density floating chamber 20 and floats, the conduction chamber 19 is a sealed chamber, the conduction chamber 19 is adjacent to the density floating chamber 20, the iron sheet 18 is embedded in the follower float 17, the follower float 17 moves in the conduction chamber 19 with the float 21, the conduction plate 16 is arranged below the follower float 17, the conduction plate 16 is connected to the first end of the third connecting rod 15, the second end of the third connecting rod 15 is connected to the first end of the second connecting rod 12 through the second rotating shaft 14, and the fixed shaft 13 It is arranged on the internal shell body that separates the conduction chamber 19 and the second guide chamber 5. The second connecting rod 12 passes through the internal shell body that separates the conduction chamber 19 and the second guide chamber 5 through the fixed shaft 13, and is used to change the transmission direction. The second end of the second connecting rod 12 is connected to the first end of the first connecting rod 10 through the first rotating shaft 11, and the second end of the first connecting rod 10 is connected to the baffle 9. The first end of the weak spring 24 is fixed on the internal shell body of the second guide chamber 5, and the second end of the weak spring 24 is connected to the baffle 9. The first base 7 and the second base 8 are arranged between the guide chamber 25 and the outlet guide chamber 25. The second guide hole 6 is arranged between the first base 7 and the second base 8. The second guide chamber 5 is communicated with the outlet guide chamber 25 through the second guide hole 6, and the outlet guide chamber 25 is communicated with the outlet 26.

[0088] Fig. 9 It is a specific example diagram of the horizontal well collaborative cold production method in an embodiment of the present invention.

[0089] In one embodiment of the present invention, reference Fig. 9 , crude oil flows in from the inlet 2, and flows out through the first guide chamber 3, the first guide hole 4, the second guide chamber 5, the second guide hole 6, the outlet guide chamber 25, and the outlet 26; when the crude oil contains gas, the gas will enter the density floating chamber 20 through the third guide hole 23, the crude oil density decreases, and the float 21 moves downward. Since the float 21 is embedded with a magnet 22 and the follower float 17 is embedded with an iron sheet 18, the follower float 17 is driven to move downward, and the follower float presses the conduction plate 16 downward. Through the conduction effect of the third connecting rod 15, the second rotating shaft 14, the fixed shaft 13, the second connecting rod 12, the first rotating shaft 11, and the first connecting rod 10, the baffle 9 moves upward to block the second guide hole between the first base 7 and the second base 8, so as to realize the automatic closing of the inflow controller, thereby preventing the gas from entering the horizontal well, causing the degassing of the horizontal well section, and making it impossible to continue to produce oil.

[0090] Fig.10 It is a specific example diagram of the horizontal well collaborative cold production method in an embodiment of the present invention.

[0091] In one embodiment of the present invention, the inflow controller 27 and the sand control screen 29 are installed with reference to Fig.10 The crude oil enters the flow channel 28 of the horizontal well from the oil layer through the sand screen 29, and then enters the horizontal well through the inflow controller 27 for oil production and transportation; wherein the sand screen 29 is used to prevent sand in the crude oil from entering the horizontal well, and the inflow controller 27 is used to prevent gas from entering the horizontal well.

[0092] It should be noted that, although the operations of the method of the present invention are described in a specific order in the above embodiments and the accompanying drawings, this does not require or imply that the operations must be performed in the specific order, or that all the operations shown must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps.

[0093] The implementation of the horizontal well coordinated cold production device can refer to the implementation of the above method, and the repeated parts will not be repeated. The term "module" or "unit" used below can be a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0094] Based on the same inventive concept, the present invention also proposes a horizontal well coordinated cold production device, such as Fig.11 As shown, the device comprises:

[0095] The first parameter acquisition module 1101 is used to acquire oil layer thickness and formation pressure;

[0096] The height difference determination module 1102 is used to determine the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well according to the oil layer thickness and the formation pressure; wherein each lower horizontal well is located on a first horizontal plane, and each upper horizontal well is located on a second horizontal plane;

[0097] The horizontal distance determination module 1103 is used to determine the horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells according to the oil layer thickness and the formation pressure;

[0098] The cold production position determination module 1104 is used to determine the cold production position of each upper horizontal well and each lower horizontal well according to the height difference between the lower horizontal well and the bottom of the oil layer, the height difference between the upper horizontal well and the lower horizontal well, the horizontal distance between adjacent upper horizontal wells, and the horizontal distance between adjacent lower horizontal wells;

[0099] The production pressure difference determination module 1105 is used to determine the production pressure difference between the upper horizontal well and the lower horizontal well according to the oil layer thickness, the formation pressure, and the cold production position of each upper horizontal well and each lower horizontal well; wherein the production pressure difference of each upper horizontal well is the same, and the production pressure difference of each lower well is the same;

[0100] The coordinated cold production control module 1106 is used to issue a message instruction for coordinated cold production of the oil layer using each upper horizontal well and each lower horizontal well after determining the production pressure difference between the upper horizontal well and the lower horizontal well.

[0101] In one embodiment of the present invention, the height difference determination module 1102 is specifically used for:

[0102] According to the thickness of the oil layer and the formation pressure, the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well are adjusted using numerical simulation methods to determine the maximum oil production; based on the maximum oil production, the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well are determined.

[0103] In one embodiment of the present invention, the height difference determination module 1102 is specifically used for:

[0104] The height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well are determined according to the following formula:

[0105]

[0106]

[0107] Among them, h1 is the height difference between the lower horizontal well and the bottom of the oil layer, in meters; h2 is the height difference between the upper horizontal well and the lower horizontal well, in meters; H is the thickness of the oil layer, in meters.

[0108] In one embodiment of the present invention, the horizontal distance determination module 1103 is specifically used for:

[0109] According to the oil layer thickness and formation pressure, the horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells are adjusted by numerical simulation method to determine the maximum oil production; according to the maximum oil production, the horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells are determined; among which, the horizontal distance between adjacent upper horizontal wells is the same as the horizontal distance between adjacent lower horizontal wells.

[0110] In one embodiment of the present invention, the horizontal distance determination module 1103 is specifically used for:

[0111] The horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells are determined according to the following formula:

[0112] WS=5422.9e -0.044P H 0.79 ;

[0113] Wherein, WS represents the horizontal distance between adjacent upper horizontal wells and adjacent lower horizontal wells; P represents the formation pressure; and H represents the thickness of the oil layer.

[0114] In one embodiment of the present invention, the production pressure difference determination module 1105 is specifically used for:

[0115] According to the oil layer thickness, formation pressure, and the cold production position of each upper horizontal well and each lower horizontal well, the production pressure difference between the upper horizontal well and the lower horizontal well is adjusted by numerical simulation method to determine the maximum oil production; based on the maximum oil production, the production pressure difference between the upper horizontal well and the lower horizontal well is determined.

[0116] In one embodiment of the present invention, the production pressure difference determination module 1105 is specifically used for:

[0117] The production pressure difference between the upper horizontal well and the lower horizontal well is determined by the following formula:

[0118]

[0119] Among them, ΔP i represents the production pressure difference of the i-th horizontal well; a i represents the first correlation coefficient of the production pressure difference of the i-th horizontal well; b i The second correlation coefficient representing the production pressure difference of the i-th horizontal well; c i It represents the third correlation coefficient of the production pressure difference of the i-th horizontal well; when i is 1, it means calculating the production pressure difference of the upper horizontal well; when i is 2, it means calculating the production pressure difference of the lower horizontal well; P represents the formation pressure; H represents the oil layer thickness.

[0120] Fig.12 1 is a specific example diagram of the horizontal well coordinated cold production device in the embodiment of the present invention. Fig.12 As shown, in one embodiment of the present invention, Fig.11 The horizontal well coordinated cold production device shown also includes:

[0121] The second parameter acquisition module 1201 is used to acquire formation-related parameters; wherein the formation-related parameters include: permeability, porosity, oil saturation, number of interlayers, vertical position of the interlayer in the formation, horizontal position of the interlayer in the formation, or any combination thereof;

[0122] The position parameter determination module 1202 is used to determine the position of the first inflow controller, the number of inflow controllers, and the distance between adjacent inflow controllers in the horizontal well based on formation-related parameters, formation pressure, horizontal well length, and the height difference between the horizontal well and the bottom of the oil layer; wherein the horizontal well includes an upper horizontal well and a lower horizontal well.

[0123] In one embodiment of the present invention, the inflow controller includes:

[0124] Shell 1, inlet 2, first flow guide chamber 3, first flow guide hole 4, second flow guide chamber 5, second flow guide hole 6, first base 7, second base 8, baffle 9, first connecting rod 10, first rotating shaft 11, second connecting rod 12, fixed shaft 13, second rotating shaft 14, third connecting rod 15, conduction plate 16, follower float 17, iron sheet 18, conduction chamber 19, density floating chamber 20, float 21, magnet 22, third flow guide hole 23, weak spring 24, outlet flow guide chamber 25, outlet 26;

[0125] The inlet 2 and the outlet 26 are respectively arranged on both sides of the shell 1, the inlet 2 is communicated with the first guide chamber 3, the first guide chamber 3 is communicated with the second guide chamber 5 through the first guide hole 4, the first guide chamber 3 is communicated with the density floating chamber 20 through the third guide hole 23, the magnet 22 is embedded in the float 21, the float 21 is placed in the density floating chamber 20 and floats, the conduction chamber 19 is a sealed chamber, the conduction chamber 19 is adjacent to the density floating chamber 20, the iron sheet 18 is embedded in the follower float 17, the follower float 17 moves in the conduction chamber 19 with the float 21, the conduction plate 16 is arranged below the follower float 17, the conduction plate 16 is connected to the first end of the third connecting rod 15, the second end of the third connecting rod 15 is connected to the first end of the second connecting rod 12 through the second rotating shaft 14, and the fixed shaft 13 It is arranged on the internal shell body that separates the conduction chamber 19 and the second guide chamber 5. The second connecting rod 12 passes through the internal shell body that separates the conduction chamber 19 and the second guide chamber 5 through the fixed shaft 13, and is used to change the transmission direction. The second end of the second connecting rod 12 is connected to the first end of the first connecting rod 10 through the first rotating shaft 11, and the second end of the first connecting rod 10 is connected to the baffle 9. The first end of the weak spring 24 is fixed on the internal shell body of the second guide chamber 5, and the second end of the weak spring 24 is connected to the baffle 9. The first base 7 and the second base 8 are arranged between the guide chamber 25 and the outlet guide chamber 25. The second guide hole 6 is arranged between the first base 7 and the second base 8. The second guide chamber 5 is communicated with the outlet guide chamber 25 through the second guide hole 6, and the outlet guide chamber 25 is communicated with the outlet 26.

[0126] In one embodiment of the present invention, the location parameter determination module 1201 is specifically used for:

[0127] Receive preset parameters of multiple groups of first inflow controllers, including positions, numbers of inflow controllers, and distances between adjacent inflow controllers; and use numerical simulation methods to sequentially read the positions, numbers of inflow controllers, and distances between adjacent inflow controllers of each group of first inflow controllers based on formation-related parameters, formation pressure, length of the horizontal well, and height difference between the horizontal well and the bottom of the oil layer, to determine the maximum oil production; and determine the positions, numbers, and distances between adjacent inflow controllers for setting the first inflow controller in the horizontal well based on the maximum oil production.

[0128] In one embodiment of the present invention, the location parameter determination module 1202 is specifically used for:

[0129] The formation-related parameters, formation pressure, horizontal well length, and height difference between the horizontal well and the bottom of the oil layer are input into the position parameter determination model, and the position of the first inflow controller in the horizontal well, the number of inflow controllers, and the distance between adjacent inflow controllers are output; wherein the position parameter determination model is obtained by training a machine learning model based on historical formation-related parameters, historical formation pressure, historical horizontal well length, historical height difference between the horizontal well and the bottom of the oil layer, and the corresponding historical position of the first inflow controller in the horizontal well, the number of historical inflow controllers, and the distance between historical adjacent inflow controllers.

[0130] It should be noted that although several modules of the horizontal well coordinated cold production device are mentioned in the above detailed description, this division is only exemplary and not mandatory. In fact, according to an embodiment of the present invention, the features and functions of two or more modules described above can be embodied in one module. Conversely, the features and functions of one module described above can be further divided into multiple modules for embodiment.

[0131] Based on the above invention concept, Fig.13 As shown, the present invention also proposes a computer device 1300, including a memory 1301, a processor 1302, and a computer program 1303 stored in the memory 1301 and executable on the processor 1302, wherein the processor 1302 implements the aforementioned horizontal well collaborative cold production method when executing the computer program 1303.

[0132] Based on the aforementioned inventive concept, the present invention proposes a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the aforementioned horizontal well collaborative cold production method is implemented.

[0133] Based on the aforementioned inventive concept, the present invention proposes a computer program product, which includes a computer program, and when the computer program is executed by a processor, a horizontal well collaborative cold production method is implemented.

[0134] The horizontal well coordinated cold production method and device proposed in the embodiment of the present invention can solve the problems of uneven utilization of reserves in the middle layer in the prior art, and the problems of easy degassing and low oil production efficiency in the horizontal wells; the embodiment of the present invention obtains the thickness of the oil layer and the formation pressure; according to the thickness of the oil layer and the formation pressure, determines the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well; wherein each lower horizontal well is located on a first horizontal plane, and each upper horizontal well is located on a second horizontal plane; according to the thickness of the oil layer and the formation pressure, determines the horizontal distance between adjacent upper horizontal wells, and the horizontal distance between adjacent lower horizontal wells; according to the height difference between the lower horizontal well and the oil layer bottom, determines the height difference between the upper horizontal well and the lower horizontal well; The cold production position of each upper horizontal well and each lower horizontal well is determined according to the height difference of the bottom of the layer, the height difference between the upper horizontal well and the lower horizontal well, the horizontal distance between the adjacent upper horizontal wells, and the horizontal distance between the adjacent lower horizontal wells; the production pressure difference of the upper horizontal well and the lower horizontal well is determined according to the thickness of the oil layer, the formation pressure, and the cold production position of each upper horizontal well and each lower horizontal well; wherein the production pressure difference of each upper horizontal well is the same, and the production pressure difference of each lower well is the same; after determining the production pressure difference of the upper horizontal well and the lower horizontal well, a message instruction is issued to use each upper horizontal well and each lower horizontal well to perform coordinated cold production on the oil layer. The embodiment of the present invention can determine the cold production position of each upper horizontal well and each lower horizontal well, realize full exploitation of the oil layer, improve oil production efficiency, set the production pressure difference for the upper horizontal well and the lower horizontal well respectively, and avoid degassing of the horizontal well.

[0135] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0136] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0137] These computer program instructions may also be stored in a computer readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0138] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0139] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A horizontal well coordinated cold production method, characterized in that: include: Obtain oil layer thickness and formation pressure; According to the oil layer thickness and the formation pressure, determine the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well; wherein each lower horizontal well is located on a first horizontal plane, and each upper horizontal well is located on a second horizontal plane; According to the oil layer thickness and formation pressure, determine the horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells; According to the height difference between the lower horizontal well and the bottom of the oil layer, the height difference between the upper horizontal well and the lower horizontal well, the horizontal distance between adjacent upper horizontal wells, and the horizontal distance between adjacent lower horizontal wells, the cold production position of each upper horizontal well and each lower horizontal well is determined; Determine the production pressure difference between the upper horizontal well and the lower horizontal well according to the oil layer thickness, formation pressure, and the cold production position of each upper horizontal well and each lower horizontal well; wherein the production pressure difference of each upper horizontal well is the same, and the production pressure difference of each lower well is the same; After determining the production pressure difference between the upper horizontal well and the lower horizontal well, a message instruction is issued to use each upper horizontal well and each lower horizontal well to carry out coordinated cold production of the oil layer.

2. The method according to claim 1, characterized in that According to the oil layer thickness and formation pressure, determine the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well, including: According to the oil layer thickness and formation pressure, the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well are adjusted by numerical simulation method to determine the maximum oil production; According to the maximum oil production, the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well are determined.

3. The method according to claim 2, characterized in that The height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well are determined according to the following formula: Among them, h1 is the height difference between the lower horizontal well and the bottom of the oil layer, in meters; h2 is the height difference between the upper horizontal well and the lower horizontal well, in meters; H is the thickness of the oil layer, in meters.

4. The method according to claim 1, characterized in that According to the oil layer thickness and formation pressure, determine the horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells, including: According to the oil layer thickness and formation pressure, the horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells are adjusted by numerical simulation method to determine the maximum oil production; According to the maximum oil production, the horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells are determined; wherein the horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells are the same.

5. The method according to claim 4, characterized in that The horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells are determined according to the following formula: WS=5422.9e -0.044P H 0.79 ; Wherein, WS represents the horizontal distance between adjacent upper horizontal wells and adjacent lower horizontal wells; P represents the formation pressure; and H represents the thickness of the oil layer.

6. The method according to claim 1, characterized in that According to the oil layer thickness, formation pressure, and the cold production position of each upper horizontal well and each lower horizontal well, the production pressure difference between the upper horizontal well and the lower horizontal well is determined, including: According to the oil layer thickness, formation pressure, and the cold production position of each upper horizontal well and each lower horizontal well, the production pressure difference between the upper horizontal well and the lower horizontal well is adjusted by numerical simulation method to determine the maximum oil production; According to the maximum oil production, the production pressure difference between the upper horizontal well and the lower horizontal well is determined.

7. The method according to claim 6, characterized in that The production pressure difference between the upper horizontal well and the lower horizontal well is determined by the following formula: Where ΔP i represents the production pressure difference of the i-th horizontal well; a i represents the first correlation coefficient of the production pressure difference of the i-th horizontal well; b i The second correlation coefficient representing the production pressure difference of the i-th horizontal well; c i It represents the third correlation coefficient of the production pressure difference of the i-th horizontal well; when i is 1, it means calculating the production pressure difference of the upper horizontal well; when i is 2, it means calculating the production pressure difference of the lower horizontal well; P represents the formation pressure; H represents the oil layer thickness.

8. The method according to claim 1, characterized in that: Also includes: Acquiring formation-related parameters; wherein the formation-related parameters include: permeability, porosity, oil saturation, number of interlayers, longitudinal position of the interlayers in the formation, lateral position of the interlayers in the formation, or any combination thereof; According to formation-related parameters, formation pressure, horizontal well length, and the height difference between the horizontal well and the bottom of the oil layer, the position of the first inflow controller, the number of inflow controllers, and the distance between adjacent inflow controllers in the horizontal well are determined; wherein the horizontal well includes an upper horizontal well and a lower horizontal well.

9. The method according to claim 8, characterized in that The inflow controller comprises: A housing (1), an inlet (2), a first flow guide chamber (3), a first flow guide hole (4), a second flow guide chamber (5), a second flow guide hole (6), a first base (7), a second base (8), a baffle (9), a first connecting rod (10), a first rotating shaft (11), a second connecting rod (12), a fixed shaft (13), a second rotating shaft (14), a third connecting rod (15), a conducting plate (16), a follower float (17), an iron sheet (18), a conducting chamber (19), a density floating chamber (20), a float (21), a magnet (22), a third flow guide hole (23), a weak spring (24), an outlet flow guide chamber (25), and an outlet (26); The inlet (2) and the outlet (26) are respectively arranged on both sides of the housing (1); the inlet (2) is communicated with the first flow guide chamber (3); the first flow guide chamber (3) is communicated with the second flow guide chamber (5) through the first flow guide hole (4); the first flow guide chamber (3) is communicated with the density floating chamber (20) through the third flow guide hole (23); the magnet (22) is embedded in the float (21); the float (21) is placed in the density floating chamber (20) and floats; the conduction chamber (19) is sealed. The conductive cavity (19) is adjacent to the density floating cavity (20), the iron sheet (18) is embedded in the follower float (17), the follower float (17) moves in the conductive cavity (19) along with the float (21), the conductive plate (16) is arranged below the follower float (17), the conductive plate (16) is connected to the first end of the third connecting rod (15), the second end of the third connecting rod (15) is connected to the first end of the second connecting rod (12) through the second rotating shaft (14), and the fixed shaft The second connecting rod (12) passes through the inner shell separated by the conducting chamber (19) and the second guiding chamber (5) through the fixed shaft (13) for changing the transmission direction. The second end of the second connecting rod (12) is connected to the first end of the first connecting rod (10) through the first rotating shaft (11). The second end of the first connecting rod (10) is connected to the baffle (9). The first end of the weak spring (24) is fixed to the inner shell of the second guiding chamber (5). The second end of the weak spring (24) is connected to the baffle (9). The first base (7) and the second base (8) are arranged between the guiding chamber (5) and the outlet guiding chamber (25). The second guiding hole (6) is arranged between the first base (7) and the second base (8). The second guiding chamber (5) communicates with the outlet guiding chamber (25) through the second guiding hole (6). The outlet guiding chamber (25) communicates with the outlet (26).

10. The method according to claim 8, characterized in that According to formation-related parameters, formation pressure, horizontal well length, and the height difference between the horizontal well and the bottom of the oil layer, the position of the first inflow controller, the number of inflow controllers, and the distance between adjacent inflow controllers in the horizontal well are determined, including: Receiving preset positions of multiple groups of first inflow controllers, the number of inflow controllers, and distance parameters of adjacent inflow controllers; According to formation-related parameters, formation pressure, horizontal well length, and the height difference between the horizontal well and the bottom of the oil layer, the position of each group of first inflow controllers, the number of inflow controllers, and the distance between adjacent inflow controllers are read in turn by numerical simulation to determine the maximum oil production; According to the maximum oil production, the position of the first inflow controller, the number of inflow controllers, and the distance between adjacent inflow controllers in the horizontal well are determined.

11. The method according to claim 8, characterized in that According to formation-related parameters, formation pressure, horizontal well length, and the height difference between the horizontal well and the bottom of the oil layer, the position of the first inflow controller, the number of inflow controllers, and the distance between adjacent inflow controllers in the horizontal well are determined, including: The formation-related parameters, formation pressure, horizontal well length, and height difference between the horizontal well and the bottom of the oil layer are input into the position parameter determination model, and the position of the first inflow controller in the horizontal well, the number of inflow controllers, and the distance between adjacent inflow controllers are output; wherein the position parameter determination model is obtained by training a machine learning model based on historical formation-related parameters, historical formation pressure, historical horizontal well length, historical height difference between the horizontal well and the bottom of the oil layer, and the corresponding historical position of the first inflow controller in the horizontal well, the number of historical inflow controllers, and the distance between historical adjacent inflow controllers.

12. A horizontal well coordinated cold production device, characterized in that: include: The first parameter acquisition module is used to obtain the oil layer thickness and formation pressure; The height difference determination module is used to determine the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well according to the oil layer thickness and the formation pressure; wherein each lower horizontal well is located on a first horizontal plane, and each upper horizontal well is located on a second horizontal plane; A horizontal distance determination module is used to determine the horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells according to the oil layer thickness and the formation pressure; A cold production position determination module is used to determine the cold production position of each upper horizontal well and each lower horizontal well according to the height difference between the lower horizontal well and the bottom of the oil layer, the height difference between the upper horizontal well and the lower horizontal well, the horizontal distance between adjacent upper horizontal wells, and the horizontal distance between adjacent lower horizontal wells; The production pressure difference determination module is used to determine the production pressure difference between the upper horizontal well and the lower horizontal well according to the oil layer thickness, the formation pressure, and the cold production position of each upper horizontal well and each lower horizontal well; wherein the production pressure difference of each upper horizontal well is the same, and the production pressure difference of each lower well is the same; The coordinated cold production control module is used to send out a message instruction for coordinated cold production of the oil layer using each upper horizontal well and each lower horizontal well after determining the production pressure difference between the upper horizontal well and the lower horizontal well.

13. The device according to claim 12, characterized in that The height difference determination module is specifically used for: According to the oil layer thickness and formation pressure, the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well are adjusted by numerical simulation method to determine the maximum oil production; According to the maximum oil production, the height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well are determined.

14. The device according to claim 13, characterized in that The height difference determination module is specifically used for: The height difference between the lower horizontal well and the bottom of the oil layer, and the height difference between the upper horizontal well and the lower horizontal well are determined according to the following formula: Among them, h1 is the height difference between the lower horizontal well and the bottom of the oil layer, in meters; h2 is the height difference between the upper horizontal well and the lower horizontal well, in meters; H is the thickness of the oil layer, in meters.

15. The device according to claim 12, characterized in that The horizontal distance determination module is specifically used for: According to the oil layer thickness and formation pressure, the horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells are adjusted by numerical simulation method to determine the maximum oil production; According to the maximum oil production, the horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells are determined; wherein the horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells are the same.

16. The device according to claim 15, characterized in that The horizontal distance determination module is specifically used for: The horizontal distance between adjacent upper horizontal wells and the horizontal distance between adjacent lower horizontal wells are determined according to the following formula: WS=5422.9e -0.044P H 0.79 ; Wherein, WS represents the horizontal distance between adjacent upper horizontal wells and adjacent lower horizontal wells; P represents the formation pressure; and H represents the thickness of the oil layer.

17. The device according to claim 12, characterized in that The production pressure difference determination module is specifically used for: According to the oil layer thickness, formation pressure, and the cold production position of each upper horizontal well and each lower horizontal well, the production pressure difference between the upper horizontal well and the lower horizontal well is adjusted by numerical simulation method to determine the maximum oil production; According to the maximum oil production, the production pressure difference between the upper horizontal well and the lower horizontal well is determined.

18. The device according to claim 17, characterized in that The production pressure difference determination module is specifically used for: The production pressure difference between the upper horizontal well and the lower horizontal well is determined by the following formula: Where ΔP i represents the production pressure difference of the i-th horizontal well; a i represents the first correlation coefficient of the production pressure difference of the i-th horizontal well; b i The second correlation coefficient representing the production pressure difference of the i-th horizontal well; c i It represents the third correlation coefficient of the production pressure difference of the i-th horizontal well; when i is 1, it means calculating the production pressure difference of the upper horizontal well; when i is 2, it means calculating the production pressure difference of the lower horizontal well; P represents the formation pressure; H represents the oil layer thickness.

19. The device according to claim 12, characterized in that Also includes: The second parameter acquisition module is used to acquire formation-related parameters; wherein the formation-related parameters include: permeability, porosity, oil saturation, number of interlayers, longitudinal position of the interlayer in the formation, lateral position of the interlayer in the formation, or any combination thereof; The position parameter determination module is used to determine the position of the first inflow controller, the number of inflow controllers, and the distance between adjacent inflow controllers in the horizontal well according to formation-related parameters, formation pressure, horizontal well length, and the height difference between the horizontal well and the bottom of the oil layer; wherein the horizontal well includes an upper horizontal well and a lower horizontal well.

20. The device according to claim 19, characterized in that The inflow controller comprises: A housing (1), an inlet (2), a first flow guide chamber (3), a first flow guide hole (4), a second flow guide chamber (5), a second flow guide hole (6), a first base (7), a second base (8), a baffle (9), a first connecting rod (10), a first rotating shaft (11), a second connecting rod (12), a fixed shaft (13), a second rotating shaft (14), a third connecting rod (15), a conducting plate (16), a follower float (17), an iron sheet (18), a conducting chamber (19), a density floating chamber (20), a float (21), a magnet (22), a third flow guide hole (23), a weak spring (24), an outlet flow guide chamber (25), and an outlet (26); The inlet (2) and the outlet (26) are respectively arranged on both sides of the housing (1); the inlet (2) is communicated with the first flow guide chamber (3); the first flow guide chamber (3) is communicated with the second flow guide chamber (5) through the first flow guide hole (4); the first flow guide chamber (3) is communicated with the density floating chamber (20) through the third flow guide hole (23); the magnet (22) is embedded in the float (21); the float (21) is placed in the density floating chamber (20) and floats; the conduction chamber (19) is sealed. The conductive cavity (19) is adjacent to the density floating cavity (20), the iron sheet (18) is embedded in the follower float (17), the follower float (17) moves in the conductive cavity (19) along with the float (21), the conductive plate (16) is arranged below the follower float (17), the conductive plate (16) is connected to the first end of the third connecting rod (15), the second end of the third connecting rod (15) is connected to the first end of the second connecting rod (12) through the second rotating shaft (14), and the fixed shaft The second connecting rod (12) passes through the inner shell separated by the conducting chamber (19) and the second guiding chamber (5) through the fixed shaft (13) for changing the transmission direction. The second end of the second connecting rod (12) is connected to the first end of the first connecting rod (10) through the first rotating shaft (11). The second end of the first connecting rod (10) is connected to the baffle (9). The first end of the weak spring (24) is fixed to the inner shell of the second guiding chamber (5). The second end of the weak spring (24) is connected to the baffle (9). The first base (7) and the second base (8) are arranged between the guiding chamber (5) and the outlet guiding chamber (25). The second guiding hole (6) is arranged between the first base (7) and the second base (8). The second guiding chamber (5) communicates with the outlet guiding chamber (25) through the second guiding hole (6). The outlet guiding chamber (25) communicates with the outlet (26).

21. The device according to claim 19, characterized in that The position parameter determination module is specifically used for: Receiving preset positions of multiple groups of first inflow controllers, the number of inflow controllers, and distance parameters of adjacent inflow controllers; According to formation-related parameters, formation pressure, horizontal well length, and the height difference between the horizontal well and the bottom of the oil layer, the position of each group of first inflow controllers, the number of inflow controllers, and the distance between adjacent inflow controllers are read in turn by numerical simulation to determine the maximum oil production; According to the maximum oil production, the position of the first inflow controller, the number of inflow controllers, and the distance between adjacent inflow controllers in the horizontal well are determined.

22. The device according to claim 19, characterized in that The position parameter determination module is specifically used for: The formation-related parameters, formation pressure, horizontal well length, and height difference between the horizontal well and the bottom of the oil layer are input into the position parameter determination model, and the position of the first inflow controller in the horizontal well, the number of inflow controllers, and the distance between adjacent inflow controllers are output; wherein the position parameter determination model is obtained by training a machine learning model based on historical formation-related parameters, historical formation pressure, historical horizontal well length, historical height difference between the horizontal well and the bottom of the oil layer, and the corresponding historical position of the first inflow controller in the horizontal well, the number of historical inflow controllers, and the distance between historical adjacent inflow controllers.

23. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the method according to any one of claims 1 to 11 is implemented.

24. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 11 is implemented.

25. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 11 is implemented.

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