A shale oil post-fracturing interwell interference quantitative evaluation method, device and equipment

Abstract

The application provides a shale oil post-fracturing interwell interference quantitative evaluation method, device and equipment, including: obtaining an interwell interference quantitative evaluation request; establishing a physical model corresponding to a multi-fractured horizontal well to be evaluated; according to the interwell interference quantitative evaluation request and the physical model, using a pre-configured well test model, obtaining an interference bottom hole pressure and a non-interference bottom hole pressure; respectively performing non-dimensional processing and derivation processing on the interference bottom hole pressure and the non-interference bottom hole pressure, obtaining an interference pressure derivative value and a non-interference pressure derivative value; according to the interference pressure derivative value and the non-interference pressure derivative value, obtaining an interference coefficient and an interference degree. The related parameters affecting the interwell interference are subjected to sensitivity analysis, the interwell interference coefficient and the interwell interference degree are clearly defined, and an effective method is provided for the reasonable development of unconventional reservoirs and the continuous optimization of well arrangement schemes.

Description

Technical Field

[0001] This application relates to shale oil reservoir development technology, and in particular to a method, apparatus and equipment for quantitative evaluation of post-pressure well-to-well interference in shale oil. Background Technology

[0002] As global consumption of conventional energy gradually increases, the call for developing clean and efficient unconventional energy sources is growing stronger. Shale oil, as a new type of energy, is attracting increasing attention from more and more countries and oil companies due to its stable distribution, large thickness, and wide distribution range. However, due to the low porosity, low permeability, and relatively low gas saturation of shale oil reservoirs, they must undergo fracturing and other production enhancement measures, such as horizontal well fracturing technology, before they become valuable for development.

[0003] As the scale of fractured horizontal wells continues to expand and the spacing between them continues to shrink, inter-well interference problems are becoming increasingly serious. Mutual interference between fractured horizontal wells can cause a rapid drop in pressure, which is detrimental to oil and gas reservoir development. Therefore, there is an urgent need for a method to evaluate inter-well interference. Summary of the Invention

[0004] This application provides a method, apparatus, and equipment for quantitative evaluation of post-pressure well interference in shale oil, which is used to develop more reasonable unconventional reservoir development plans or optimize well placement plans based on the well interference obtained by the evaluation method, thereby effectively improving the exploitation of oil and gas resources.

[0005] Firstly, this application provides a quantitative evaluation method for post-compression well-to-well interference in shale oil, including:

[0006] Obtain a quantitative evaluation request for inter-well interference, which includes: the multi-fractured horizontal well to be evaluated, the fracture parameters corresponding to the multi-fractured horizontal well to be evaluated, and the parameters of the reservoir in which the multi-fractured horizontal well to be evaluated is located.

[0007] Based on the actual situation information of the fractured horizontal well to be evaluated, a physical model corresponding to the fractured horizontal well to be evaluated is established.

[0008] Based on the request for quantitative evaluation of inter-well interference and the physical model, a pre-configured well test model is used to analyze and process the parameters of the reservoir and the fracture parameters of the multi-fracture horizontal well to be evaluated, and obtain the interference bottom hole pressure and the non-interference bottom hole pressure corresponding to the fracture parameters to be evaluated in the fracture parameters respectively.

[0009] The interfering bottom hole pressure and the non-interfering bottom hole pressure corresponding to the fracture parameters to be evaluated are respectively dimensionless and differentiated to obtain the corresponding interfering pressure derivative value and the non-interfering pressure derivative value.

[0010] Based on the pressure derivative values ​​of each fracture parameter to be evaluated, both the interference value and the uninterrupted pressure derivative value, the interference coefficient and interference degree corresponding to each fracture parameter to be evaluated are obtained. This allows for the determination of some fracture parameters during the drilling of new wells, based on the interference coefficient and interference degree corresponding to each fracture parameter to be evaluated, as well as the interference coefficient and interference degree corresponding to the new well.

[0011] In one specific implementation, the type of crack parameter to be evaluated includes one or more combinations:

[0012] Crack conductivity, crack half-length, crack angle, and number of cracks.

[0013] In one specific implementation, obtaining the pre-configured well test model includes:

[0014] Based on the fracture parameters corresponding to the multi-fractured horizontal well to be trained, the parameters of the reservoir to be trained where the multi-fractured horizontal well is located, and the physical model corresponding to the multi-fractured horizontal well to be trained, the pre-configured well test model is established.

[0015] In one specific implementation, establishing the pre-configured well test model based on the acquired fracture parameters corresponding to the multi-fractured horizontal well to be trained, the parameters of the reservoir to be trained where the multi-fractured horizontal well is located, and the physical model corresponding to the multi-fractured horizontal well to be trained includes:

[0016] Based on the equivalent radius r in the crack parameters e Crack half length L F and crack width W F Establish the first formula:

[0017]

[0018] Based on the parameters of the reservoir in which the multi-fractured horizontal well to be trained is located, including the well index WI and the wellbore radius r... w The skin coefficient S, and the crack permeability K in the crack parameters. F Crack width W F Equivalent radius r e Establish the second formula:

[0019]

[0020] Based on the parameters of the reservoir in which the multi-fractured horizontal well to be trained is located, including well production Q, volume factor B, fluid viscosity μ, and pressure at the perforation point p... e 1. Wellbore reservoir coefficient C, establish a third formula:

[0021]

[0022] The pre-configured well test model is established based on the first, second, and third formulas.

[0023] In one specific embodiment, the step of performing dimensionless processing and differentiation processing on the disturbing bottom-hole pressure and the undisturbed bottom-hole pressure corresponding to the fracture parameters to be evaluated, respectively, to obtain the corresponding disturbing pressure derivative value and the undisturbed pressure derivative value, includes:

[0024] For each fracture parameter to be evaluated, the first formula, the second formula, and the third formula in the pre-configured well test model, as well as the dimensionless formula group, are used to obtain the dimensionless disturbed bottom hole pressure and the dimensionless undisturbed bottom hole pressure corresponding to the fracture parameter to be evaluated.

[0025] The dimensionless formula set includes:

[0026]

[0027] Among them, t D denoted as dimensionless time, K as matrix permeability, D and φ as matrix porosity (dimensionless), μ as fluid viscosity (dimensionless), and C as... t The overall compressibility factor is expressed in MPa. -1 r w Where is the wellbore radius;

[0028] P wD Let h be the dimensionless bottom hole pressure, h be the reservoir thickness, Q be the well production rate, and B be the volume factor, all dimensionless.

[0029] For each fracture parameter to be evaluated, the dimensionless bottom hole pressure with disturbance and the dimensionless bottom hole pressure without disturbance are differentiated to obtain the corresponding pressure derivative values ​​with and without disturbance.

[0030] In one specific implementation, obtaining the interference coefficient and interference degree corresponding to each crack parameter to be evaluated based on the pressure derivative value of the interference and the pressure derivative value without interference corresponding to each crack parameter to be evaluated includes:

[0031] For each crack parameter to be evaluated, the following formulas are used based on the pressure derivative values ​​under interference and those without interference:

[0032]

[0033] Obtain the interference coefficient β and the interference level γ;

[0034] Where P2' is the pressure derivative value when disturbance occurs, and P1' is the pressure derivative value when there is no disturbance.

[0035] Secondly, this application provides a quantitative evaluation device for post-compression well interference in shale oil, comprising:

[0036] The acquisition module is used to acquire a quantitative evaluation request for inter-well interference. The quantitative evaluation request for inter-well interference includes: the multi-fractured horizontal well to be evaluated, the fracture parameters corresponding to the multi-fractured horizontal well to be evaluated, and the parameters of the reservoir in which the multi-fractured horizontal well to be evaluated is located.

[0037] The processing module is used to establish a physical model corresponding to the multi-fractured horizontal well to be evaluated based on the actual situation information of the multi-fractured horizontal well to be evaluated.

[0038] The processing module is also used to analyze and process the parameters of the reservoir and the fracture parameters of the multi-fracture horizontal well to be evaluated based on the inter-well interference quantitative evaluation request and the physical model using a pre-configured well test model, and to obtain the interference bottom hole pressure and non-interference bottom hole pressure corresponding to the fracture parameters to be evaluated in the fracture parameters respectively.

[0039] The processing module is also used to perform dimensionless processing and derivative processing on the interfering bottom hole pressure and the non-interfering bottom hole pressure corresponding to the fracture parameters to be evaluated, respectively, to obtain the corresponding interfering pressure derivative value and the non-interfering pressure derivative value.

[0040] The processing module is further configured to obtain the interference coefficient and interference degree corresponding to each fracture parameter to be evaluated based on the interference pressure derivative value and the non-interference pressure derivative value corresponding to each fracture parameter to be evaluated, so as to determine some fracture parameters when drilling a new well based on the interference coefficient and interference degree corresponding to each fracture parameter to be evaluated, as well as the interference coefficient and interference degree corresponding to the new well.

[0041] In one specific implementation, the types of crack parameters to be evaluated include one or more combinations: crack conductivity, crack half-length, crack angle, and number of cracks.

[0042] In one specific embodiment, the processing module is further configured to:

[0043] Based on the fracture parameters corresponding to the multi-fractured horizontal well to be trained, the parameters of the reservoir to be trained where the multi-fractured horizontal well is located, and the physical model corresponding to the multi-fractured horizontal well to be trained, the pre-configured well test model is established.

[0044] In one specific embodiment, the processing module is further configured to:

[0045] Based on the equivalent radius r in the crack parameters e Crack half length L F and crack width W F Establish the first formula:

[0046]

[0047] Based on the parameters of the reservoir in which the multi-fractured horizontal well to be trained is located, including the well index WI and the wellbore radius r... w The skin coefficient S, and the crack permeability K in the crack parameters. F Crack width W F Equivalent radius r e Establish the second formula:

[0048]

[0049] Based on the parameters of the reservoir in which the multi-fractured horizontal well to be trained is located, including well production Q, volume factor B, fluid viscosity μ, and pressure at the perforation point p... e 1. Wellbore reservoir coefficient C, establish a third formula:

[0050]

[0051] The pre-configured well test model is established based on the first, second, and third formulas.

[0052] In one specific embodiment, the processing module is specifically used for:

[0053] For each fracture parameter to be evaluated, the first formula, the second formula, and the third formula in the pre-configured well test model, as well as the dimensionless formula group, are used to obtain the dimensionless disturbed bottom hole pressure and the dimensionless undisturbed bottom hole pressure corresponding to the fracture parameter to be evaluated.

[0054] The dimensionless formula set includes:

[0055]

[0056] Among them, t D denoted as dimensionless time, K as matrix permeability, D and φ as matrix porosity (dimensionless), μ as fluid viscosity (dimensionless), and C as... t The overall compressibility factor is expressed in MPa. -1 r w Where is the wellbore radius;

[0057] P wD Let h be the dimensionless bottom hole pressure, h be the reservoir thickness, Q be the well production rate, and B be the volume factor, all dimensionless.

[0058] For each fracture parameter to be evaluated, the dimensionless bottom hole pressure with disturbance and the dimensionless bottom hole pressure without disturbance are differentiated to obtain the corresponding pressure derivative values ​​with and without disturbance.

[0059] In one specific embodiment, the processing module is specifically used for:

[0060] For each crack parameter to be evaluated, the following formulas are used based on the pressure derivative values ​​under interference and those without interference:

[0061]

[0062] Obtain the interference coefficient β and the interference level γ;

[0063] Where P2' is the pressure derivative value when disturbance occurs, and P1' is the pressure derivative value when there is no disturbance.

[0064] Thirdly, this application provides an electronic device, comprising:

[0065] At least one processor; and a memory connected to said at least one processor; wherein,

[0066] The memory stores instructions that can be executed by the at least one processor, which, when executed by the at least one processor, enables the at least one processor to perform the quantitative evaluation method for post-pressure well-to-well interference based on shale oil as described in the first aspect.

[0067] This application provides a method, apparatus, and equipment for quantitative evaluation of inter-well interference based on shale oil post-compression. The method involves obtaining a quantitative evaluation request for inter-well interference, which includes: the multi-fractured horizontal well to be evaluated, the fracture parameters corresponding to the multi-fractured horizontal well, and the parameters of the reservoir in which the multi-fractured horizontal well is located. Based on the obtained actual situation information of the multi-fractured horizontal well to be evaluated, a physical model corresponding to the multi-fractured horizontal well to be evaluated is established. Based on the quantitative evaluation request for inter-well interference and the physical model, a pre-configured well test model is used to analyze and process the reservoir parameters and the fracture parameters of the multi-fractured horizontal well to be evaluated, respectively obtaining... The fracture parameters to be evaluated include the interfering and undisturbed bottom-hole pressures. Dimensionless and derivative processing is performed on these pressures to obtain the corresponding perturbed and undisturbed pressure derivatives. Based on these perturbed and undisturbed pressure derivatives, the interference coefficient and degree of interference for each fracture parameter are obtained. This allows for the determination of some fracture parameters during new well development, using the interference coefficients and degrees of interference for each evaluated fracture parameter and the new well itself. Therefore, this application, by conducting sensitivity analysis on relevant parameters affecting inter-well interference and characterizing the inter-well interference coefficient and degree of interference, enables more rational development of unconventional reservoirs or optimization of well placement schemes, thereby effectively improving oil and gas resource extraction. Attached Figure Description

[0068] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0069] Figure 1 A flowchart illustrating an embodiment of a quantitative evaluation method for post-compression well interference in shale oil provided in this application;

[0070] Figure 2 Physical model diagrams for two multi-fracture horizontal wells;

[0071] Figure 3a Characteristic diagrams of interference coefficients for different crack half-lengths;

[0072] Figure 3b Characteristic diagrams of interference levels for different crack half-lengths;

[0073] Figure 4a Characteristic diagrams of interference coefficients for different crack conductivity;

[0074] Figure 4b Characteristic diagrams of the degree of interference for different fracture conductivity;

[0075] Figure 5a Characteristic diagrams of interference coefficients at different crack angles;

[0076] Figure 5b Characteristic diagrams of the degree of interference at different crack angles;

[0077] Figure 6a Characteristic diagrams of interference coefficients for different numbers of cracks;

[0078] Figure 6b Characteristic maps of interference levels for different numbers of cracks;

[0079] Figure 7 A flowchart illustrating an embodiment of a quantitative evaluation method for post-pressure well-to-well interference in shale oil provided in this application;

[0080] Figure 8 Characteristic graphs of bottom hole pressure test curves for different fracture half lengths;

[0081] Figure 9 Characteristic diagram of bottom hole pressure test curves for different fracture conductivity;

[0082] Figure 10 Characteristic diagrams of bottom hole pressure test curves at different fracture angles;

[0083] Figure 11 Characteristic graphs of bottom hole pressure test curves for different numbers of fractures;

[0084] Figure 12 The physical model diagrams for horizontal well 1 and the test well are shown below;

[0085] Figure 13 The diagram shows the dimensionless bottom hole pressure and its derivative under theoretical and actual conditions.

[0086] Figure 14a Characteristic diagram of interference coefficient of test well;

[0087] Figure 14b This is a feature map of the interference level in the test well;

[0088] Figure 15 Physical model diagrams for horizontal wells JW35 and JW36;

[0089] Figure 16 The diagram shows the dimensionless bottom hole pressure and its derivative under theoretical and practical conditions for horizontal wells.

[0090] Figure 17a Characteristic diagram of interference coefficients during horizontal well injection and shut-in;

[0091] Figure 17b Characteristic diagram of the degree of interference during injection and shut-in of horizontal wells;

[0092] Figure 18a This is a characteristic diagram of the interference coefficient of a horizontal well during the production period;

[0093] Figure 18b This is a diagram showing the degree of disturbance to a horizontal well during its production period.

[0094] Figure 19 A schematic diagram of an embodiment of a quantitative evaluation device for post-pressure well interference in shale oil, provided in this application.

[0095] Figure 20 This is a schematic diagram of the structure of an electronic device provided in this application. Detailed Implementation

[0096] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments made by those skilled in the art under the guidance of these embodiments are within the scope of protection of this application.

[0097] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0098] First, let's explain the terms used in this application:

[0099] Inter-well interference: When an oil well or water injection well in the same oil layer is opened, the change of operating conditions of one oil well or water injection well affects the pressure, production or water injection volume of adjacent oil wells or water injection wells.

[0100] Wellbore reservoir effect: During well testing, due to the compressibility of fluids in the wellbore, formation fluids continue to accumulate in the well after shut-in, but cannot flow into the wellbore immediately after opening. This phenomenon is called wellbore reservoir effect.

[0101] Skin effect: The ratio of additional pressure caused by various imperfections in a real well to the reservoir's permeability resistance. It is the phenomenon of a pressure drop that occurs when crude oil flows from the reservoir into the wellbore.

[0102] In the process of oil and gas resource extraction, horizontal wells are often fractured to obtain larger amounts of unconventional oil and gas reservoirs in order to maximize the extraction of oil and gas resources. However, with the continuous expansion of the scale of shale oil horizontal well fracturing and the continuous reduction of the spacing between horizontal wells, the problem of inter-well interference is becoming increasingly serious. Therefore, the analysis of inter-well interference has become an important basis for subsequent reservoir development or well layout optimization. Although the importance of inter-well interference analysis has been recognized in existing technologies, no method has been provided for more accurate analysis and acquisition of inter-well interference.

[0103] Based on the above-mentioned technical problems, the technical concept of this application is as follows: For the inter-well interference generated after shale oil pressure, how to use known information such as reservoir parameters and fracture parameters to accurately analyze the fracture parameters affecting the inter-well interference through mathematical models, and characterize the degree of inter-well interference and the inter-well interference coefficient.

[0104] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0105] Figure 1 A flowchart illustrating an embodiment of a quantitative evaluation method for post-compression well-to-well interference in shale oil, provided in this application, is shown below. Figure 1 The quantitative evaluation method for post-compression well-to-well interference in shale oil specifically includes the following steps:

[0106] Step S101: Obtain the inter-well interference quantitative evaluation request. The inter-well interference quantitative evaluation request includes: the multi-fractured horizontal well to be evaluated, the fracture parameters corresponding to the multi-fractured horizontal well to be evaluated, and the parameters of the reservoir where the multi-fractured horizontal well to be evaluated is located.

[0107] In this embodiment, the fracture parameters corresponding to the multi-fractured horizontal well to be evaluated include one or more combinations of the following: fracture permeability, fracture half-length, fracture width, etc. The parameters of the reservoir in which the multi-fractured horizontal well to be evaluated is located include one or more combinations of the following: matrix permeability, matrix porosity, wellbore radius, comprehensive compressibility coefficient, fluid viscosity, reservoir thickness, volume factor, and wellbore reservoir factor, etc.

[0108] Step S102: Based on the actual situation information of the fractured horizontal well to be evaluated, establish the physical model corresponding to the fractured horizontal well to be evaluated.

[0109] In this embodiment, the actual situation information of the multi-fractured horizontal wells to be evaluated includes the number of multi-fractured horizontal wells to be evaluated, the number of fractures in the horizontal wells, and the distribution of multi-fractured horizontal wells in the formation.

[0110] In this embodiment, the established physical model, also known as the physical-mathematical model, is a model containing a series of assumptions that form the basis for mathematical modeling. For example, the second and third formulas of the well test model in this application are the well index assumption and production condition assumption corresponding to the horizontal well physical model, respectively. Therefore, the quantitative evaluation method for inter-well interference based on shale oil post-pressure treatment established in this application needs to be based on this physical model for quantitative evaluation of inter-well interference. For example, consider two fractured horizontal wells distributed in a bounded formation. Figure 2 This is a physical model diagram of two fractured horizontal wells. (Example) Figure 2 As shown, the physical model includes: a bounded formation 201, a fractured horizontal well 202, a fractured horizontal well 203, and fractures on both wells 202 and 203. Specifically, two fractured horizontal wells, 202 and 203, are distributed within the bounded formation 201. Each well has four fractures evenly distributed at a 90° angle. When establishing the physical model corresponding to the fractured horizontal wells, the wells and their respective reservoir regions should also meet the following assumptions:

[0111] The reservoir in question is isotropic;

[0112] The two fractured horizontal wells interfere with each other through matrix fractures, and the fractures are evenly distributed in the horizontal wells;

[0113] Assume that the hydraulic fractures in the oil well completely penetrate the formation, and ignore vertical flow in the fractures;

[0114] Considering that the length of the crack is much greater than its width, the fluid flow within the hydraulic crack is one-dimensional along the crack length;

[0115] There are no direct fracture intersections between the multiple fractured horizontal wells;

[0116] The thickness is uniform, the formation is uniform, and the initial temperature and pressure are also uniform.

[0117] The reservoir flow is single-phase and has no gravity effect.

[0118] The reservoir boundary is square in shape, and the arbitrary shape boundary of the formation is composed of a series of boundary segments.

[0119] Step S103: Based on the request for quantitative evaluation of inter-well interference and the physical model, a pre-configured well test model is used to analyze and process the parameters of the reservoir and the fracture parameters of the multi-fractured horizontal well to be evaluated, and obtain the interference bottom hole pressure and the non-interference bottom hole pressure corresponding to the fracture parameters to be evaluated in the fracture parameters respectively.

[0120] In this embodiment, the types of crack parameters to be evaluated include one or more combinations: crack conductivity, crack half-length, crack angle, and number of cracks.

[0121] In this embodiment, when two or more fractured horizontal wells are operating simultaneously in a bounded formation, they interfere with each other, generating interfering bottomhole pressures. When only one fractured horizontal well is operating in a bounded formation, no interference occurs, generating non-interfering bottomhole pressures. Using a pre-configured well test model, the reservoir parameters and the fracture parameters of the fractured horizontal well to be evaluated are analyzed and processed to obtain the interfering and non-interfering bottomhole pressures corresponding to different fracture parameters, thereby enabling quantitative characterization of the interfering and non-interfering bottomhole pressures.

[0122] Step S104: Perform dimensionless processing and derivative processing on the disturbing bottom hole pressure and the non-disturbing bottom hole pressure corresponding to the fracture parameters to be evaluated, and obtain the corresponding pressure derivative values ​​of the disturbing and non-disturbing parameters.

[0123] In this embodiment, a set of dimensionless formulas is used to dimensionally process the disturbed bottom-hole pressure and the undisturbed bottom-hole pressure to obtain the corresponding dimensionless disturbed bottom-hole pressure and dimensionless undisturbed bottom-hole pressure. The dimensionless bottom-hole pressure can also be called the dimensionless bottom-hole pressure. Differentiation is performed on the dimensionless disturbed bottom-hole pressure and the dimensionless undisturbed bottom-hole pressure to obtain the corresponding pressure derivative values ​​for the disturbed and undisturbed conditions. The pressure derivative values ​​obtained at this time can also be called the dimensionless pressure derivatives. Through dimensionless processing and differentiation, the pressure derivative values ​​for the disturbed and undisturbed conditions corresponding to different fracture parameters are obtained, thereby enabling quantitative characterization of the disturbed and undisturbed pressure derivatives.

[0124] Step S105: Obtain the interference coefficient and interference degree corresponding to each fracture parameter to be evaluated based on the pressure derivative value of the interference and the pressure derivative value without interference corresponding to each fracture parameter to be evaluated. In order to determine some fracture parameters when drilling a new well, based on the interference coefficient and interference degree corresponding to each fracture parameter to be evaluated, as well as the interference coefficient and interference degree corresponding to the new well.

[0125] In this embodiment, for each crack parameter to be evaluated, the following formulas are used based on the pressure derivative values ​​under interference and those without interference:

[0126]

[0127] Obtain the interference coefficient β and the interference level γ;

[0128] Where P2' is the pressure derivative value when disturbance occurs, and P1' is the pressure derivative value when there is no disturbance.

[0129] For example, when the crack parameters to be evaluated are crack conductivity, crack half-length, crack angle, and number of cracks, the relationship between dimensionless time and the degree of disturbance and the disturbance coefficient under different crack parameters is obtained, that is, the relationship between dimensionless time and the degree of disturbance and the disturbance coefficient under different crack parameters, and the dimensionless time t is used as the expression. D The interference degree γ and interference coefficient β are represented by characteristic diagrams, thus quantitatively characterizing the dimensionless time and interference degree and interference coefficient under different crack parameters.

[0130] Figure 3a Characteristic diagrams of interference coefficients for different crack half-lengths. Figure 3b Characteristic maps of interference levels for different crack half-lengths, such as Figure 3a and Figure 3b As shown, different crack half-lengths can be one or more of the following combinations: 100m, 120m, 150m, 200m, 250m. In this embodiment, the specific value of the crack half-length is not limited, and it can be a combination of the above or completely different from the above combinations.

[0131] Figure 4a Characteristic diagrams of interference coefficients for different fracture conductivity. Figure 4b Characteristic maps of the degree of interference for different fracture conductivity, such as... Figure 4a and Figure 4b As shown, different fracture conductivity can be one or more of the following combinations: 20md, 80md, 100md, 150md, 180md. In this embodiment, the specific value of fracture conductivity is not limited, and it can be a combination of the above or completely different from the above combinations.

[0132] Figure 5a Characteristic diagrams of interference coefficients at different crack angles. Figure 5b Characteristic maps of interference levels at different crack angles, such as... Figure 5a and Figure 5b As shown, different crack angles can be one or more of the following combinations: 10°, -30°, -50°, -70°. In this embodiment, the specific value of the crack angle is not limited; it can be one of the above combinations or completely different from the above combinations.

[0133] Figure 6a Characteristic diagrams of interference coefficients for different numbers of cracks. Figure 6b Characteristic maps of interference levels for different numbers of cracks, such as... Figure 6a and Figure 6b As shown, the number of cracks can be one or more of the following combinations: 8, 10, 12, 15. This embodiment does not limit the specific value of the number of cracks; it can be one of the above combinations or completely different from the above combinations.

[0134] In this embodiment, a quantitative evaluation request for inter-well interference is obtained. This request includes: the multi-fractured horizontal well to be evaluated, the fracture parameters corresponding to the multi-fractured horizontal well, and the parameters of the reservoir in which the multi-fractured horizontal well is located. Based on the obtained actual situation information of the multi-fractured horizontal well to be evaluated, a physical model corresponding to the multi-fractured horizontal well to be evaluated is established. Based on the quantitative evaluation request for inter-well interference and the physical model, a pre-configured well test model is used to analyze and process the reservoir parameters and the fracture parameters of the multi-fractured horizontal well to be evaluated, obtaining the interfering bottom-hole pressure and the non-interfering bottom-hole pressure corresponding to the fracture parameters to be evaluated. Dimensionless processing and differentiation processing are performed on the interfering bottom-hole pressure and the non-interfering bottom-hole pressure corresponding to the fracture parameters to be evaluated, obtaining the corresponding interfering pressure derivative value and the non-interfering pressure derivative value. Based on the interfering pressure derivative value and the non-interfering pressure derivative value corresponding to each fracture parameter to be evaluated, the interference coefficient and interference degree corresponding to each fracture parameter to be evaluated are obtained. This allows for the determination of some fracture parameters when developing new wells, based on the interference coefficient and interference degree corresponding to each fracture parameter to be evaluated, as well as the interference coefficient and interference degree corresponding to the new well. Sensitivity analysis was conducted on relevant parameters affecting inter-well interference, and the inter-well interference coefficient and degree of inter-well interference were clearly defined, providing an effective method for the rational formulation of unconventional reservoir development schemes and the continuous optimization of well placement schemes.

[0135] Figure 7 A flowchart illustrating Embodiment 2 of the quantitative evaluation method for post-pressure well-to-well interference based on shale oil provided in this application is described above. Figure 1 Based on the illustrated embodiment, see also Figure 7 One specific implementation of the pre-configured well test model in step 103 is as follows:

[0136] Based on the obtained fracture parameters of the multi-fracture horizontal well to be trained, the parameters of the reservoir in which the multi-fracture horizontal well is located, and the physical model corresponding to the multi-fracture horizontal well, a pre-configured well test model is established. The specific implementation steps are as follows:

[0137] Step S701: Based on the equivalent radius r in the fracture parameters corresponding to the multi-fractured horizontal well. e Crack half length L F and crack width W F Establish the first formula for the well test model.

[0138] The first formula of the well test model is:

[0139]

[0140] Step S702: Based on the well index WI and wellbore radius r of the reservoir where the multi-fractured horizontal well is located... w Skin coefficient S, and fracture permeability K in fracture parameters corresponding to multi-fractured horizontal wells. F Crack width W F Equivalent radius r e Establish the second formula for the well test model.

[0141] The second formula for the well test model is:

[0142]

[0143] Among them, according to the crack permeability K F Crack width W F The fracture conductivity C can be obtained using the following formula. F :

[0144] C F =k F ×W F

[0145] Step S703: Based on the parameters of the reservoir where the multi-fractured horizontal well is located, including well production Q, volume factor B, fluid viscosity μ, and pressure at the perforation point p... e The wellbore reservoir coefficient C is used to establish the third formula for the well test model.

[0146] Third formula of well test model:

[0147]

[0148] In this embodiment, the first, second, and third well test model formulas are well test models established considering both wellbore reservoir and skin effects. The well grid pressure considering both wellbore reservoir and skin effects at any given time can be obtained using these formulas, i.e., the bottom hole pressure p at any given time. wD .

[0149] In this embodiment, by acquiring the fracture parameters corresponding to the multi-fractured horizontal well, the parameters of the reservoir where the multi-fractured horizontal well is located, and the physical model corresponding to the multi-fractured horizontal well, a well test model including the first formula, the second formula, and the third formula is established. The bottom hole pressure of the multi-fractured horizontal well at any time through this well test model provides a data basis for quantitative evaluation of inter-well interference.

[0150] Based on the above embodiments, the following embodiment three illustrates the process of performing dimensionless processing and differentiation on the disturbing bottom hole pressure and the non-disturbing bottom hole pressure corresponding to the fracture parameters to be evaluated in step 104, and obtaining the corresponding disturbing pressure derivative values ​​and the non-disturbing pressure derivative values:

[0151] First, the third formula in the well test model of Example 2 is dimensionless by using the dimensionless formula set to obtain the corresponding dimensionless bottom hole pressure with disturbance and dimensionless bottom hole pressure without disturbance.

[0152] The dimensionless formula set includes:

[0153]

[0154] Among them, t D Dimensionless time (also known as dimensionless time), K is matrix permeability, D and φ are matrix porosity (dimensionless), μ is fluid viscosity (dimensionless), C t The overall compressibility factor is expressed in MPa. -1 r w Where is the wellbore radius;

[0155] P wD The dimensionless bottom hole pressure, also known as the dimensionless bottom hole pressure, is defined as h, where h is the reservoir thickness, Q is the well production rate, and B is the volume coefficient.

[0156] Secondly, the bottom hole pressure without dimensional disturbance and the bottom hole pressure without dimensional disturbance are differentiated to obtain the corresponding pressure derivative values ​​with and without disturbance.

[0157] For example, when the fracture parameters to be evaluated are fracture conductivity, fracture half-length, fracture angle, and number of fractures, the relationship between dimensionless time and dimensionless bottom-hole pressure and dimensionless bottom-hole pressure derivative is obtained under different fracture parameters. That is, the relationship between dimensionless time and dimensionless bottom-hole pressure and dimensionless bottom-hole pressure derivative under different fracture parameters is expressed as dimensionless time t. D With dimensionless bottom hole pressure P wD and dimensionless bottom hole pressure derivative P' wD The well test curve is shown.

[0158] Figure 8 Characteristic graphs of bottom hole pressure test curves for different fracture half lengths, such as... Figure 8 As shown, different crack half-lengths can be one or more of the following combinations: 100m, 120m, 150m, 200m, 250m. In this embodiment, the specific value of the crack half-length is not limited, and it can be a combination of the above or completely different from the above combinations.

[0159] Figure 9 Characteristic graphs of bottom hole pressure test curves for different fracture conductivity, such as... Figure 9 As shown, different fracture conductivity can be one or more of the following combinations: 20md, 80md, 100md, 150md, 180md. In this embodiment, the specific value of fracture conductivity is not limited, and it can be a combination of the above or completely different from the above combinations.

[0160] Figure 10 Characteristic graphs of bottom hole pressure test curves at different fracture angles, such as... Figure 10 As shown, different crack angles can be one or more of the following combinations: 90°, 10°, -30°, -50°, -70°. In this embodiment, the specific value of the crack angle is not limited; it can be one of the above combinations or completely different from the above combinations.

[0161] Figure 11 Characteristic graphs of bottom hole pressure test curves for different numbers of fractures, such as... Figure 11 As shown, the number of cracks can be one or more of the following combinations: 4, 8, 10, 12, and 15. This embodiment does not limit the specific number of cracks; it can be any combination of the above or completely different combinations.

[0162] In this embodiment, the disturbing bottom hole pressure and the non-disturbed bottom hole pressure are dimensionlessly processed using a set of dimensionless formulas to obtain the corresponding dimensionless disturbing bottom hole pressure and dimensionless non-disturbed bottom hole pressure. Then, the dimensionsless disturbing bottom hole pressure and the dimensionless non-disturbed bottom hole pressure are differentiated to obtain the corresponding pressure derivative values ​​of the disturbing and non-disturbed conditions, providing a data basis for quantitative evaluation of inter-well disturbances.

[0163] Based on any one of the above embodiments one to three, the method shown in this application will be further described below through embodiment four. A quantitative evaluation method for post-compression well-to-well interference in shale oil is implemented in conjunction with the following embodiment. The specific operation of this method is as follows:

[0164] Scenario 1: Two wells are uniformly distributed in a bounded formation, namely a horizontal well 1 and a test well. Both wells are 1000m long, with 4 fractures, a fracture half-length of 100m, a fracture angle of 90°, a fracture height of 10m, a fracture width of 0.001m, a fracture permeability of 0.1md, and a fracture conductivity of 20md·m. The test well operates at a flow rate of 1 cubic meter per day. 3 Production, horizontal well 1 at 2 cubic meters / m³ per day 3 Production, both wells produced for 7×10⁵ hours, characterizing the inter-well interference on the test well when the two wells were producing simultaneously. Figure 12 The physical model diagrams for horizontal well 1 and the test well are shown below. Figure 12 As shown, the physical model includes: a bounded formation, a fractured horizontal well 1, a fractured test well, and fractures on both wells. Specifically, two fractured horizontal wells, namely fractured horizontal well 1 and fractured test well, are distributed within the bounded formation. Each well has four fractures evenly distributed, with each fracture angle being 90°. The well location coordinates are shown in Table 1, and the reservoir parameters of the reservoir where the horizontal wells are located are shown in Table 2.

[0165] Table 1

[0166]

[0167] Table 2

[0168]

[0169] According to the well test model, dimensionless formula set, interference coefficient and interference degree calculation formula in the aforementioned method embodiment, the dimensionless interference bottom hole pressure, dimensionless interference pressure derivative, interference coefficient and interference degree of the test well are obtained. Figure 13 This plot shows the dimensionless bottom-hole pressure and its derivative under theoretical and actual conditions. (Example:) Figure 13As shown, the quantitative evaluation method for inter-well interference based on shale oil post-pressure testing proposed in this application is used to theoretically calculate and characterize the dimensionless bottom hole pressure and dimensionless bottom hole pressure derivative of multi-fractured horizontal wells. The results are consistent with the dimensionless bottom hole pressure and dimensionless bottom hole pressure derivative obtained from actual production tests. This indicates that, in the presence of inter-well interference, the quantitative evaluation method for inter-well interference based on shale oil post-pressure testing proposed in this application can accurately obtain the bottom hole pressure and bottom hole pressure derivative at any time, providing a foundation for further quantitative evaluation of inter-well interference.

[0170] Figure 14a and Figure 14b These are the interference coefficient characteristic map and the interference degree characteristic map of the test well, respectively.

[0171] Scenario 2: Two horizontal wells, JW35 and JW36, are evenly distributed in a bounded formation. Both wells are 1532m long. Well JW35 has 17 fractures, and well JW36 has 19 fractures. JW35 has a fracture half-length of 95m, a fracture angle of 90°, a fracture height of 6m, a fracture width of 0.001m, a fracture permeability of 0.1md, and a fracture conductivity of 100md·m. JW36 has a fracture half-length of 97m, a fracture angle of 90°, a fracture height of 10m, a fracture width of 0.001m, a fracture permeability of 0.1md, and a fracture conductivity of 100md·m. The well spacing between the two wells is 200m. This scenario represents the inter-well interference that occurs during injection and shut-in periods and during production when the two horizontal wells are producing simultaneously. Figure 15 For the physical models corresponding to horizontal wells JW35 and JW36, such as Figure 15 As shown, the physical model includes: a bounded formation, fractured horizontal well JW35, fractured horizontal well JW36, and fractures on both wells. Specifically, two fractured horizontal wells, JW35 and JW36, are distributed within the bounded formation. Well JW35 has 17 fractures evenly distributed, while well JW36 has 19 fractures evenly distributed. The fracture angles of both wells are 90°. The well location coordinates are shown in Table 3, and the reservoir parameters of the reservoir where the horizontal wells are located are shown in Table 4.

[0172] Table 3

[0173]

[0174] Table 4

[0175] parameter unit numerical values Penetration rate K md 1.82 Porosity Φ \ 0.1391 Wellbore radius r m 0.09 Compression factor Ct <![CDATA[MPa -1 ]]> 1.043E-3 Viscosity μ cp 1.0 reservoir thickness h m 10 Volume index B \ 1.0 Wellbore storage coefficient C <![CDATA[m 3 / MPa]]> 0.2306

[0176] According to the well test model, dimensionless formula set, interference coefficient and interference degree calculation formula in the aforementioned method embodiment, the dimensionless interference bottom hole pressure, dimensionless interference pressure derivative, interference coefficient and interference degree of the test well are obtained. Figure 16 This diagram shows the dimensionless bottom hole pressure and its derivative under theoretical and practical conditions for horizontal wells. (Example:) Figure 16 As shown, the quantitative evaluation method for inter-well interference based on shale oil post-pressure testing proposed in this application is used to theoretically calculate and characterize the dimensionless bottom hole pressure and dimensionless bottom hole pressure derivative of multi-fractured horizontal wells. The results are in good agreement with the dimensionless bottom hole pressure and dimensionless bottom hole pressure derivative obtained from actual production tests. This indicates that, even with inter-well interference, the quantitative evaluation method for inter-well interference based on shale oil post-pressure testing proposed in this application can accurately obtain the bottom hole pressure and bottom hole pressure derivative at any given time, providing a foundation for further quantitative evaluation of inter-well interference.

[0177] Figure 17a and Figure 17b These are characteristic diagrams of the interference coefficient and the interference degree during horizontal well injection and shut-in, respectively. Figure 17a and Figure 17b As shown, since this situation involves injecting into a horizontal well and then shutting it in for recovery, the horizontal wells cause inter-well interference during injection. After shutting in, the horizontal wells cease production activities, and the inter-well interference gradually disappears. Therefore, the interference coefficient curve and interference degree curve during horizontal well injection and shut-in first rise and then fall.

[0178] Figure 18a and Figure 18b These are the interference coefficient characteristic map and the interference degree characteristic map of the horizontal well during the production period, respectively.

[0179] The following are embodiments of the apparatus described in this application, which can be used to execute the embodiments of the method described in this application. For details not disclosed in the apparatus embodiments of this application, please refer to the embodiments of the method described in this application.

[0180] Figure 19 This is a schematic diagram of an embodiment of a quantitative evaluation device for post-pressure well interference in shale oil, provided as an example of this application. Figure 19As shown, the shale oil post-compression well interference quantitative evaluation device 190 includes: an acquisition module 191, used to acquire a well interference quantitative evaluation request, which includes: the multi-fractured horizontal well to be evaluated, the fracture parameters corresponding to the multi-fractured horizontal well to be evaluated, and the parameters of the reservoir in which the multi-fractured horizontal well to be evaluated is located; a processing module 192, used to establish a physical model corresponding to the multi-fractured horizontal well to be evaluated based on the acquired actual situation information of the multi-fractured horizontal well to be evaluated; the processing module 192 is also used to analyze and process the reservoir parameters and the fracture parameters of the multi-fractured horizontal well to be evaluated using a pre-configured well test model based on the well interference quantitative evaluation request and the physical model, respectively. The processing module 192 is used to obtain the interfering bottom-hole pressure and the non-interfering bottom-hole pressure corresponding to the fracture parameters to be evaluated in the fracture parameters; the processing module 192 is also used to perform dimensionless processing and differentiation processing on the interfering bottom-hole pressure and the non-interfering bottom-hole pressure corresponding to the fracture parameters to be evaluated, respectively, to obtain the corresponding interfering pressure derivative value and the non-interfering pressure derivative value; the processing module 192 is also used to obtain the interference coefficient and interference degree corresponding to each fracture parameter to be evaluated based on the interfering pressure derivative value and the non-interfering pressure derivative value corresponding to each fracture parameter to be evaluated, so as to determine some fracture parameters when drilling a new well based on the interference coefficient and interference degree corresponding to each fracture parameter to be evaluated, as well as the interference coefficient and interference degree corresponding to the new well.

[0181] In one possible implementation, the types of crack parameters to be evaluated include one or more combinations: crack conductivity, crack half-length, crack angle, and number of cracks.

[0182] In one possible implementation, the processing module 192 is further configured to:

[0183] Based on the fracture parameters of the multi-fracture horizontal well to be trained, the parameters of the reservoir to be trained where the multi-fracture horizontal well is located, and the physical model of the multi-fracture horizontal well to be trained, a pre-configured well test model is established.

[0184] In one possible implementation, the processing module 192 is further configured to:

[0185] Based on the equivalent radius r in the crack parameters e Crack half length L F and crack width W F Establish the first formula:

[0186]

[0187] Based on the parameters of the reservoir in which the multi-fractured horizontal well to be trained is located, including the well index WI and the wellbore radius r... w Skin coefficient S, and crack permeability K in crack parameters.F Crack width W F Equivalent radius r e Establish the second formula:

[0188]

[0189] Based on the parameters of the reservoir in which the multi-fractured horizontal well to be trained is located, including well production Q, volume factor B, fluid viscosity μ, pressure at perforation p, and wellbore reservoir factor C, a third formula is established:

[0190]

[0191] Based on the first, second, and third formulas, a pre-configured well test model is established.

[0192] In one possible implementation, the processing module 192 is further configured to:

[0193] For each fracture parameter to be evaluated, the first, second, and third formulas in the pre-configured well test model, as well as the dimensionless formula group, are used to obtain the dimensionless disturbed bottom hole pressure and the dimensionless undisturbed bottom hole pressure corresponding to the fracture parameter to be evaluated.

[0194] The dimensionless formula set includes:

[0195]

[0196] Among them, t D denoted as dimensionless time, K as matrix permeability, D and φ as matrix porosity (dimensionless), μ as fluid viscosity (dimensionless), and C as... t The overall compressibility factor is expressed in MPa. -1 r w Where is the wellbore radius;

[0197] P wD Let h be the dimensionless bottom hole pressure, h be the reservoir thickness, Q be the well production rate, and B be the volume factor, all dimensionless.

[0198] For each fracture parameter to be evaluated, the dimensionless bottom hole pressure with disturbance and the dimensionless bottom hole pressure without disturbance are differentiated to obtain the corresponding pressure derivative values ​​with and without disturbance.

[0199] In one possible implementation, processing module 192 is specifically used for:

[0200] For each crack parameter to be evaluated, the following formulas are used based on the pressure derivative values ​​under interference and those without interference:

[0201]

[0202] Obtain the interference coefficient β and the interference level γ;

[0203] Where P2' is the pressure derivative value when disturbance occurs, and P1' is the pressure derivative value when there is no disturbance.

[0204] The quantitative evaluation device for post-pressure well interference in shale oil provided in this application embodiment can perform the technical solution shown in the above method embodiment. Its implementation principle and beneficial effects are similar, and will not be repeated here.

[0205] Figure 20 This is a schematic diagram of the structure of an electronic device provided in this application. Figure 20 As shown, the electronic device 200 includes:

[0206] At least one processor 201 and memory 202;

[0207] Memory 202 stores the executable instructions of processor 201;

[0208] The processor 201 is configured to execute the technical solutions in any of the foregoing method embodiments by executing executable instructions.

[0209] Optionally, the memory 202 can be either standalone or integrated with the processor 201.

[0210] The electronic device 200 also includes a communication component 203. The processor 201, memory 202, and communication component 203 are connected via a bus 204.

[0211] The electronic device is used to execute the technical solutions in any of the foregoing method embodiments. Its implementation principle and technical effect are similar, and will not be described again here.

[0212] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0213] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A quantitative evaluation method for post-compression well-to-well interference in shale oil, characterized in that, include: Obtain a quantitative evaluation request for inter-well interference, which includes: the multi-fractured horizontal well to be evaluated, the fracture parameters corresponding to the multi-fractured horizontal well to be evaluated, and the parameters of the reservoir in which the multi-fractured horizontal well to be evaluated is located. Based on the actual situation information of the fractured horizontal well to be evaluated, a physical model corresponding to the fractured horizontal well to be evaluated is established. Based on the request for quantitative evaluation of inter-well interference and the physical model, a pre-configured well test model is used to analyze and process the parameters of the reservoir and the fracture parameters of the multi-fracture horizontal well to be evaluated, and obtain the interference bottom hole pressure and the non-interference bottom hole pressure corresponding to the fracture parameters to be evaluated in the fracture parameters respectively. The interfering bottom hole pressure and the non-interfering bottom hole pressure corresponding to the fracture parameters to be evaluated are respectively dimensionless and differentiated to obtain the corresponding interfering pressure derivative value and the non-interfering pressure derivative value. Based on the pressure derivative values ​​of each fracture parameter to be evaluated, both the interference value and the uninterrupted pressure derivative value, the interference coefficient and interference degree corresponding to each fracture parameter to be evaluated are obtained. In order to determine some fracture parameters when drilling a new well, based on the interference coefficient and interference degree corresponding to each fracture parameter to be evaluated, as well as the interference coefficient and interference degree corresponding to the new well. The pre-configured well test model is established in the following way: Based on the equivalent radius r in the fracture parameters corresponding to the multi-fractured horizontal well to be trained e Crack half length L F and crack width W F Establish the first formula: Based on the parameters of the reservoir in which the multi-fractured horizontal well to be trained is located, including the well index WI and the wellbore radius r... w The skin coefficient S, and the crack permeability K in the crack parameters. F Crack width W F Equivalent radius r e Establish the second formula: Based on the parameters of the reservoir in which the multi-fractured horizontal well to be trained is located, including well production Q, volume factor B, fluid viscosity μ, and pressure at the perforation point p... e 1. Wellbore reservoir coefficient C, establish a third formula: The pre-configured well test model is established based on the first formula, the second formula, and the third formula.

2. The quantitative evaluation method for post-compression well-to-well interference in shale oil as described in claim 1, characterized in that, The types of crack parameters to be evaluated include one or more combinations: Crack conductivity, crack half-length, crack angle, and number of cracks.

3. The quantitative evaluation method for post-compression well-to-well interference in shale oil as described in claim 1, characterized in that, The step of performing dimensionless processing and differentiation processing on the disturbing bottom-hole pressure and the undisturbed bottom-hole pressure corresponding to the fracture parameters to be evaluated, respectively, to obtain the corresponding pressure derivative values ​​of the disturbing and undisturbed parameters, includes: For each fracture parameter to be evaluated, the first formula, the second formula, and the third formula in the pre-configured well test model, as well as the dimensionless formula group, are used to obtain the dimensionless disturbed bottom hole pressure and the dimensionless undisturbed bottom hole pressure corresponding to the fracture parameter to be evaluated. The dimensionless formula set includes: Among them, t D denoted as dimensionless time, K as matrix permeability, D and φ as matrix porosity (dimensionless), μ as fluid viscosity (dimensionless), and C as... t The overall compressibility factor is expressed in MPa. -1 r w Where is the wellbore radius; P wD Here, h is the dimensionless bottom hole pressure, h is the reservoir thickness, Q is the well production rate, and B is the volume factor, all dimensionless. For each fracture parameter to be evaluated, the dimensionless bottom hole pressure with disturbance and the dimensionless bottom hole pressure without disturbance are differentiated to obtain the corresponding pressure derivative values ​​with and without disturbance.

4. The quantitative evaluation method for post-compression well-to-well interference in shale oil as described in claim 3, characterized in that, The step of obtaining the interference coefficient and interference degree corresponding to each crack parameter to be evaluated based on the pressure derivative value of the interference and the pressure derivative value without interference for each crack parameter to be evaluated includes: For each crack parameter to be evaluated, the following formulas are used based on the pressure derivative values ​​under interference and those without interference: Obtain the interference coefficient β and the interference level γ; Where P2' is the pressure derivative value when disturbance occurs, and P1' is the pressure derivative value when there is no disturbance.

5. A quantitative evaluation device for post-compression well-to-well interference in shale oil, characterized in that, include: The acquisition module is used to acquire a quantitative evaluation request for inter-well interference. The quantitative evaluation request for inter-well interference includes: the multi-fractured horizontal well to be evaluated, the fracture parameters corresponding to the multi-fractured horizontal well to be evaluated, and the parameters of the reservoir in which the multi-fractured horizontal well to be evaluated is located. The processing module is used to establish a physical model corresponding to the multi-fractured horizontal well to be evaluated based on the actual situation information of the multi-fractured horizontal well to be evaluated. The processing module is also used to analyze and process the parameters of the reservoir and the fracture parameters of the multi-fracture horizontal well to be evaluated based on the inter-well interference quantitative evaluation request and the physical model using a pre-configured well test model, and to obtain the interference bottom hole pressure and non-interference bottom hole pressure corresponding to the fracture parameters to be evaluated in the fracture parameters respectively. The processing module is also used to perform dimensionless processing and derivative processing on the interfering bottom hole pressure and the non-interfering bottom hole pressure corresponding to the fracture parameters to be evaluated, respectively, to obtain the corresponding interfering pressure derivative value and the non-interfering pressure derivative value. The processing module is also used to obtain the interference coefficient and interference degree corresponding to each fracture parameter to be evaluated based on the interference pressure derivative value and the non-interference pressure derivative value corresponding to each fracture parameter to be evaluated, so as to determine some fracture parameters when drilling a new well based on the interference coefficient and interference degree corresponding to each fracture parameter to be evaluated, as well as the interference coefficient and interference degree corresponding to the new well. The processing module is also used to establish a pre-configured well test model, which is established in the following way: Based on the equivalent radius r in the fracture parameters corresponding to the multi-fractured horizontal well to be trained e Crack half length L F and crack width W F Establish the first formula: Based on the parameters of the reservoir in which the multi-fractured horizontal well to be trained is located, including the well index WI and the wellbore radius r... w The skin coefficient S, and the crack permeability K in the crack parameters. F Crack width W F Equivalent radius r e Establish the second formula: Based on the parameters of the reservoir in which the multi-fractured horizontal well to be trained is located, including well production Q, volume factor B, fluid viscosity μ, and pressure at the perforation point p... e 1. Wellbore reservoir coefficient C, establish a third formula: The pre-configured well test model is established based on the first formula, the second formula, and the third formula.

6. The quantitative evaluation device for post-compression well interference in shale oil as described in claim 5, characterized in that, The types of crack parameters to be evaluated include one or more combinations: crack conductivity, crack half-length, crack angle, and number of cracks.

7. A quantitative evaluation device for post-compression well-to-well interference in shale oil, characterized in that, include: At least one processor and memory; The memory is used to store the executable instructions of the processor; The at least one processor executes the executable instructions stored in the memory, causing the at least one processor to perform a quantitative evaluation method for post-pressure well-to-well interference based on shale oil as described in any one of claims 1 to 4.

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