Drilling track design method and device

Abstract

The invention discloses a drilling track design method and device, and relates to the technical field of oil drilling engineering, wherein the method comprises: determining each track profile according to the relative coordinates of the target area relative to the wellhead, the depth of the inclination point, the well inclination angle and azimuth of the target entry, the length of the target front section, the length of the hanging straight section, the dogleg degree of the lateral displacement inclination section, and the dogleg degree of the lateral displacement descending section; using a discrete interpolation algorithm for each track profile, according to a preset interpolation interval, obtaining the track profile data of each interpolation point of the track profile from the wellhead to the inclination point, the track profile of the lateral displacement section, the track profile of the hanging straight section, the track profile of the inclination section before the target, and the track profile of the track profile of the inclination section before the target; the track profile data comprises: depth measurement, well inclination angle, azimuth, vertical depth, relative north coordinate relative to the wellhead, relative east coordinate relative to the wellhead, closing distance, closing azimuth, horizontal displacement, and dogleg degree. The invention can improve the calculation efficiency and design effect of drilling track design.

Description

Technical Field

[0001] The invention relates to the technical field of oil drilling engineering, and in particular to a drilling track design 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 description herein is admitted to be prior art by inclusion in this section.

[0003] As the oil and gas field gradually expands from shallow to ultra-deep, from shallow sea to deep sea, and from conventional to unconventional, the difficulty of drilling and development is increasing. Generally, oil and gas producing areas are developed by long horizontal wells and large platform cluster well groups, which have problems such as difficulty in controlling wellbore trajectory, large friction and torque of drill string, and high risk of collision with adjacent wells. The core of the above problems lies in the lack of mature and efficient supporting track optimization design methods, which leads to the lack of scientificity in track design, high deflection, inclination equipment unable to meet design requirements, and difficulty in controlling wellbore trajectory. Developing an integrated optimization design method suitable for long horizontal wells and cluster wells, improving the accuracy and availability of the design, improving drilling efficiency, and reducing downhole risks has become an urgent problem that needs to be solved.

[0004] At present, most of the three-dimensional wellbore trajectory design is carried out by controlling parameters such as dogleg degree, length of stable inclination section, and target entry direction. This method not only requires high professional theory and design experience of the user, but also has poor stability. The inclination twisting azimuth section is prone to cause a sharp increase in drill string friction torque, and the azimuth drift trajectory is difficult to control. It is also impossible to control actual engineering parameters such as target front distance and offset distance, and it is difficult to meet the requirements of on-site directional construction. The trajectory design of long horizontal sections of horizontal wells and cluster wells is complex, and the inclination tools are required to be high and difficult to control. The high deflection leads to excessive friction torque and difficulty in lowering the drill bit. Summary of the invention

[0005] The embodiment of the present invention provides a drilling trajectory design method, which is used to complete the integrated trajectory profile design from the wellhead to the target area by using a small amount of engineering parameters, improve the calculation efficiency and design effect of the trajectory design of long horizontal wells and cluster wells, enhance the correlation between the trajectory design method and the engineering parameters, and reduce the difficulty of use. The method includes:

[0006] According to the relative coordinates of the target area relative to the wellhead, determine the first vertical depth of the target entry point, the first relative north coordinate of the target entry point relative to the wellhead, and the first relative east coordinate of the target entry point relative to the wellhead;

[0007] According to the first vertical depth, the first relative north coordinate, the first relative east coordinate, the well inclination angle of the target, the azimuth, the length of the front section of the target, and the preset length of the front stable inclination section, the track profile of the front deflection section of the target and the track profile of the front stable inclination section of the target are determined; wherein the track profile of the front deflection section of the target and the track profile of the front stable inclination section of the target at least include: the second vertical depth of the starting point of the front deflection section of the target, the second relative north coordinate of the starting point of the front deflection section of the target relative to the wellhead, and the second relative east coordinate of the starting point of the front deflection section of the target relative to the wellhead;

[0008] According to the second vertical depth, the second relative north coordinate, the second relative east coordinate, and the length of the hanging straight section, the third vertical depth of the end point of the lateral displacement section, the third relative north coordinate of the end point of the lateral displacement section relative to the wellhead, and the third relative east coordinate of the end point of the lateral displacement section relative to the wellhead are calculated;

[0009] Determine the track profile of the lateral displacement section according to the third vertical depth, the third relative north coordinate, the third relative east coordinate, the depth of the deflection point, the dogleg degree of the lateral displacement deflection section, and the dogleg degree of the lateral displacement downslope section;

[0010] For the track profile from the wellhead to the inclination point, the track profile of the lateral displacement section, the track profile of the straightening section, the track profile of the inclination section before the target, and the track profile of the stable inclination section before the target, a discrete interpolation algorithm is used to obtain the track profile data of each interpolation point of the track profile from the wellhead to the inclination point, the track profile of the lateral displacement section, the track profile of the straightening section, the track profile of the inclination section before the target, and the track profile of the stable inclination section before the target according to the preset interpolation interval; wherein the track profile data includes at least one of the following: depth measurement, well inclination angle, azimuth, vertical depth, relative north coordinate relative to the wellhead, relative east coordinate relative to the wellhead, closing distance, closing azimuth, horizontal displacement, and dogleg degree.

[0011] The embodiment of the present invention further provides a drilling trajectory design device, which is used to complete the integrated trajectory profile design from the wellhead to the target area using a small amount of engineering parameters, improve the calculation efficiency and design effect of the trajectory design of long horizontal wells and cluster wells, enhance the correlation between the trajectory design method and the engineering parameters, and reduce the difficulty of use. The device includes:

[0012] A first processing module is used to determine a first vertical depth of the target entry point, a first relative north coordinate of the target entry point relative to the wellhead, and a first relative east coordinate of the target entry point relative to the wellhead according to the relative coordinates of the target area relative to the wellhead;

[0013] The second processing module is used to determine the track profile of the pre-target deflection section and the track profile of the pre-target stable deflection section according to the first vertical depth, the first relative north coordinate, the first relative east coordinate, the well inclination angle of the target, the azimuth, the length of the pre-target section, and the preset length of the pre-target stable deflection section; wherein the track profile of the pre-target deflection section and the track profile of the pre-target stable deflection section at least include: the second vertical depth of the starting point of the pre-target deflection section, the second relative north coordinate of the starting point of the pre-target deflection section relative to the wellhead, and the second relative east coordinate of the starting point of the pre-target deflection section relative to the wellhead;

[0014] The third processing module is used to calculate the third vertical depth of the end point of the lateral displacement section, the third relative north coordinate of the end point of the lateral displacement section relative to the wellhead, and the third relative east coordinate of the end point of the lateral displacement section relative to the wellhead according to the second vertical depth, the second relative north coordinate, the second relative east coordinate, and the length of the hanging straight section;

[0015] The fourth processing module is used to determine the track profile of the lateral displacement section according to the third vertical depth, the third relative north coordinate, the third relative east coordinate, the depth of the deflection point, the dogleg degree of the lateral displacement deflection section, and the dogleg degree of the lateral displacement downslope section;

[0016] The fifth processing module is used to use a discrete interpolation algorithm to obtain the orbit profile data of each interpolation point of the orbit profile from the wellhead to the inclination point, the orbit profile of the lateral displacement section, the orbit profile of the straightening section, the orbit profile of the pre-target inclination section, and the orbit profile of the pre-target stable inclination section according to a preset interpolation interval; wherein the orbit profile data includes at least one of the following: depth measurement, well inclination angle, azimuth, vertical depth, relative north coordinate relative to the wellhead, relative east coordinate relative to the wellhead, closing distance, closing azimuth, horizontal displacement, and dogleg degree.

[0017] An embodiment of the present invention further provides a computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned drilling trajectory design method when executing the computer program.

[0018] An embodiment of the present invention further provides 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 above-mentioned drilling trajectory design method is implemented.

[0019] An embodiment of the present invention further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the above-mentioned drilling trajectory design method is implemented.

[0020] In an embodiment of the present invention, a first vertical depth of the target entry point, a first relative north coordinate of the target entry point relative to the wellhead, and a first relative east coordinate of the target entry point relative to the wellhead are determined according to the relative coordinates of the target area relative to the wellhead; a track profile of the target front deflection section and a track profile of the target front stable deflection section are determined according to the first vertical depth, the first relative north coordinate, the first relative east coordinate, the well inclination angle of the target entry, the azimuth, the length of the target front section, and the preset length of the target front stable deflection section; wherein the track profile of the target front deflection section and the track profile of the target front stable deflection section at least include: a second vertical depth of the starting point of the target front deflection section, a second relative north coordinate of the starting point of the target front deflection section relative to the wellhead, and a second relative east coordinate of the starting point of the target front deflection section relative to the wellhead; a third vertical depth of the end point of the lateral displacement section and a third relative north coordinate of the end point of the lateral displacement section relative to the wellhead are calculated according to the second vertical depth, the second relative north coordinate, the second relative east coordinate, and the length of the hanging straight section. , the third relative east coordinate of the end point of the lateral displacement section relative to the wellhead; determine the track profile of the lateral displacement section according to the third vertical depth, the third relative north coordinate, the third relative east coordinate, the depth of the deflecting point, the dogleg degree of the lateral displacement deflecting section, and the dogleg degree of the lateral displacement descending section; for the track profile from the wellhead to the deflecting point, the track profile of the lateral displacement section, the track profile of the hanging straight section, the track profile of the deflecting section before the target, and the track profile of the stable inclination section before the target, a discrete interpolation algorithm is used to obtain the track profile data of each interpolation point of the track profile from the wellhead to the deflecting point, the track profile of the lateral displacement section, the track profile of the hanging straight section, the track profile of the deflecting section before the target, and the track profile of the stable inclination section before the target according to a preset interpolation interval; wherein the track profile data includes at least one of the following: depth measurement, well inclination angle, azimuth, vertical depth, relative north coordinate relative to the wellhead, relative east coordinate relative to the wellhead, closing distance, closing azimuth, horizontal displacement, and dogleg degree. In this way, by using a small number of engineering parameters to complete the integrated trajectory profile design from the wellhead to the target area, the calculation efficiency and design effect of the trajectory design of long horizontal sections and cluster wells can be improved, the correlation between the trajectory design method and engineering parameters can be improved, and the difficulty of use can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0022] Figure 1 A flowchart of a drilling trajectory design method provided in an embodiment of the present invention;

[0023] Figure 2A flow chart of a method for calculating the relative coordinates of a target area relative to a wellhead, the depth of a deflection point, the well inclination angle and azimuth angle of entry into the target, the length of the target front section, the length of the hanging straight section, the dogleg degree of the lateral displacement deflection section, and the dogleg degree of the lateral displacement deflection section provided in an embodiment of the present invention;

[0024] Figure 3 An exemplary diagram of an implementation process of a drilling trajectory design method provided in an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of a drilling trajectory design device provided in an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of a computer device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0027] 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.

[0028] 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.

[0029] 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.

[0030] Research has found that as the oil and gas field gradually expands from shallow to ultra-deep, from shallow sea to deep sea, and from conventional to unconventional, the difficulty of drilling and development is increasing. Generally, oil and gas producing areas are developed by long horizontal wells and large platform cluster well groups, which have problems such as difficulty in controlling wellbore trajectory, large friction and torque of drill string, and high risk of collision with adjacent wells. The core of the above problems lies in the lack of mature and efficient supporting track optimization design methods, which leads to the lack of scientificity in track design, high deflection, inclination equipment unable to meet design requirements, and difficulty in controlling wellbore trajectory. Developing an integrated optimization design method suitable for long horizontal wells and cluster wells to improve the accuracy and availability of the design, improve drilling efficiency, and reduce downhole risks has become an urgent problem that needs to be solved.

[0031] At present, most of the three-dimensional wellbore trajectory design is carried out by controlling parameters such as dogleg degree, length of stable inclination section, and target entry direction. This method not only requires high professional theory and design experience of the user, but also has poor stability. The inclination twisting azimuth section is prone to cause a sharp increase in drill string friction torque, and the azimuth drift trajectory is difficult to control. It is also impossible to control actual engineering parameters such as target front distance and offset distance, and it is difficult to meet the requirements of on-site directional construction. The trajectory design of long horizontal sections of horizontal wells and cluster wells is complex, and the inclination tools are required to be high and difficult to control. The high deflection leads to excessive friction torque and difficulty in lowering the drill bit.

[0032] In view of the above research, an embodiment of the present invention provides a drilling trajectory design method, such as Figure 1 As shown, including:

[0033] S101: Determine, according to the relative coordinates of the target area relative to the wellhead, a first vertical depth of the target entry point, a first relative north coordinate of the target entry point relative to the wellhead, and a first relative east coordinate of the target entry point relative to the wellhead;

[0034] S102: Determine the trajectory profile of the pre-target deflection section and the pre-target stable deflection section according to the first vertical depth, the first relative north coordinate, the first relative east coordinate, the well inclination angle of the target, the azimuth, the pre-target section length, and the preset pre-target stable deflection section length; wherein the pre-target deflection section trajectory profile and the pre-target stable deflection section trajectory profile at least include: the second vertical depth of the starting point of the pre-target deflection section, the second relative north coordinate of the starting point of the pre-target deflection section relative to the wellhead, and the second relative east coordinate of the starting point of the pre-target deflection section relative to the wellhead;

[0035] S103: Calculate the third vertical depth of the end point of the lateral displacement section, the third relative north coordinate of the end point of the lateral displacement section relative to the wellhead, and the third relative east coordinate of the end point of the lateral displacement section relative to the wellhead according to the second vertical depth, the second relative north coordinate, the second relative east coordinate, and the length of the hanging straight section;

[0036] S104: determining the track profile of the lateral displacement section according to the third vertical depth, the third relative north coordinate, the third relative east coordinate, the depth of the deflection point, the dogleg degree of the lateral displacement deflection section, and the dogleg degree of the lateral displacement deflection section;

[0037] S105: For the track profile from the wellhead to the inclination point, the track profile of the lateral displacement section, the track profile of the straightening section, the track profile of the inclination section before the target, and the track profile of the stable inclination section before the target, a discrete interpolation algorithm is used to obtain the track profile data of each interpolation point of the track profile from the wellhead to the inclination point, the track profile of the lateral displacement section, the track profile of the straightening section, the track profile of the inclination section before the target, and the track profile of the stable inclination section before the target according to the preset interpolation interval; wherein the track profile data includes at least one of the following: depth measurement, well inclination angle, azimuth, vertical depth, relative north coordinate relative to the wellhead, relative east coordinate relative to the wellhead, closing distance, closing azimuth, horizontal displacement, and dogleg degree.

[0038] In an embodiment of the present invention, a first vertical depth of the target entry point, a first relative north coordinate of the target entry point relative to the wellhead, and a first relative east coordinate of the target entry point relative to the wellhead are determined according to the relative coordinates of the target area relative to the wellhead; a track profile of the target front deflection section and a track profile of the target front stable deflection section are determined according to the first vertical depth, the first relative north coordinate, the first relative east coordinate, the well inclination angle of the target entry, the azimuth, the length of the target front section, and the preset length of the target front stable deflection section; wherein the track profile of the target front deflection section and the track profile of the target front stable deflection section at least include: a second vertical depth of the starting point of the target front deflection section, a second relative north coordinate of the starting point of the target front deflection section relative to the wellhead, and a second relative east coordinate of the starting point of the target front deflection section relative to the wellhead; a third vertical depth of the end point of the lateral displacement section and a third relative north coordinate of the end point of the lateral displacement section relative to the wellhead are calculated according to the second vertical depth, the second relative north coordinate, the second relative east coordinate, and the length of the hanging straight section. , the third relative east coordinate of the end point of the lateral displacement section relative to the wellhead; determine the track profile of the lateral displacement section according to the third vertical depth, the third relative north coordinate, the third relative east coordinate, the depth of the deflecting point, the dogleg degree of the lateral displacement deflecting section, and the dogleg degree of the lateral displacement descending section; for the track profile from the wellhead to the deflecting point, the track profile of the lateral displacement section, the track profile of the hanging straight section, the track profile of the deflecting section before the target, and the track profile of the stable inclination section before the target, a discrete interpolation algorithm is used to obtain the track profile data of each interpolation point of the track profile from the wellhead to the deflecting point, the track profile of the lateral displacement section, the track profile of the hanging straight section, the track profile of the deflecting section before the target, and the track profile of the stable inclination section before the target according to a preset interpolation interval; wherein the track profile data includes at least one of the following: depth measurement, well inclination angle, azimuth, vertical depth, relative north coordinate relative to the wellhead, relative east coordinate relative to the wellhead, closing distance, closing azimuth, horizontal displacement, and dogleg degree. In this way, by using a small number of engineering parameters to complete the integrated trajectory profile design from the wellhead to the target area, the calculation efficiency and design effect of the trajectory design of long horizontal sections and cluster wells can be improved, the correlation between the trajectory design method and engineering parameters can be improved, and the difficulty of use can be reduced.

[0039] The present application can solve the problem of difficulty in designing and constructing control of trajectories for horizontal wells and cluster wells with long horizontal sections. The current conventional trajectory design method requires the use of multiple control points for segmented combination calculations, which is complex to operate, difficult to design and calculate, and prone to parameter adjustment failures. In addition, there are long oblique and torsion azimuth well sections, which lead to high trajectory deflection and difficulty in lowering drilling tools. The drilling trajectory design method in the present application can realize one-click full-segment profile design without the need for segmented combination, and is simple to operate. The design parameters are highly correlated with the field control parameters, and the design scheme can be directly used on site. It is also easy for field directional engineers to make real-time adjustments and calculations. The present application optimizes the design trajectory through a two-way plane combination method, solves the problem of oblique and torsion azimuth well sections, and greatly improves the ability to lower drilling tools.

[0040] The above-mentioned drilling trajectory design method is introduced in detail below.

[0041] When designing a drilling track, for example, each track profile may be designed in sections first, and then complete track design data may be obtained based on each track profile.

[0042] In one embodiment of the present invention, before determining the first vertical depth of the target entry point, the first relative north coordinate of the target entry point relative to the wellhead, and the first relative east coordinate of the target entry point relative to the wellhead based on the relative coordinates of the target area relative to the wellhead, for example, the relative coordinates of the target area relative to the wellhead, the depth of the inclination point, the inclination angle and azimuth of the target entry, the length of the front section of the target, the length of the hanging straight section, the dogleg degree of the lateral displacement inclination section, and the dogleg degree of the lateral displacement downslope section can be calculated first.

[0043] like Figure 2 As shown, it is a flow chart of a method for calculating the relative coordinates of the target area relative to the wellhead, the depth of the deflection point, the well inclination angle and azimuth of the target entry, the length of the target front section, the length of the hanging straight section, the dogleg degree of the lateral displacement deflection section, and the dogleg degree of the lateral displacement deflection section provided by an embodiment of the present invention, including:

[0044] S201: Determine the relative coordinates of the target area relative to the wellhead and the target area offset according to the wellhead coordinates and the target area coordinates.

[0045] Among them, the target area coordinates and the inlet coordinates are both coordinates in the geodetic coordinate system; the relative coordinates of the target area relative to the wellhead are the coordinates of the target area determined with the wellhead as the origin; the target area coordinates can be configured and set by the staff in combination with the actual application scenario, and the wellhead coordinates can be calculated in combination with the target area coordinates, or they can be configured and set by the staff.

[0046] S202: Determine the depth of the inclination point according to the stratigraphic distribution and logging data of the block.

[0047] S203: Determine the well inclination and azimuth of the target according to the target area coordinates.

[0048] S204: Determine the target front section length according to the reservoir length and reservoir thickness.

[0049] S205: Determine the length of the vertical suspension section during drilling according to the target area depth and drilling time.

[0050] S206: Determine the dogleg degree of the lateral displacement deflection section and the dogleg degree of the lateral displacement deflection reduction section according to the deflection rate of the deflection tool and the target area offset.

[0051] For the above S102, for example, according to the first vertical depth, the first relative north coordinate, the first relative east coordinate, the length of the target front section, and the preset length of the target front stabilizing section, the track profile of the target front deflecting section and the track profile of the target front stabilizing section can be calculated by using the following formula:

[0052] S L =L target *sin(Inc target )

[0053] D L =L target *cos(Inc target )

[0054] TVD A =TVD target -D L

[0055] NS A =NS target -S L ·cos(Azi target )

[0056] EW A =EW target -S L ·sin(Azi target )

[0057] S C =S t -S L

[0058]

[0059]

[0060]

[0061] TVD B =TVD A -D C

[0062] NS B =NS A -S C ·cos(Azi target )

[0063] EW B =EW A -S C ·sin(Azi target )

[0064] Among them, S L is the horizontal displacement of the target front stable tilt section, D L The vertical displacement of the target front stabilization section is TVD A NS is the vertical depth of the starting point of the pre-target stable slope section, Ais the relative north coordinate of the starting point of the pre-target stable slope section, EW A is the relative east coordinate of the starting point of the pre-target stable slope section, L target is the length of the preset target front stable slope section, Inc target is the well inclination angle of the target, Azi target is the azimuth of the target, TVD target is the first vertical depth, NS target is the first relative north coordinate, EW target is the first relative east coordinate, S C is the horizontal displacement of the deflection section before the target, S t CL is the length of the target segment. c is the length of the bevel section before the target, R is the curvature radius of the bevel section before the target, and D c is the vertical displacement of the deflection section before the target, TVD B The second vertical depth, NS B is the second relative north coordinate, EW B is the second relative east coordinate. The other symbols are used for vector calculation and have no physical meaning.

[0065] For the above S103, for example, the third vertical depth of the end point of the lateral displacement section, the third relative north coordinate of the end point of the lateral displacement section relative to the wellhead, and the third relative east coordinate of the end point of the lateral displacement section relative to the wellhead can be calculated according to the second vertical depth, the second relative north coordinate, the second relative east coordinate, and the length of the hanging straight section, including:

[0066] According to the second vertical depth, the second relative north coordinate, the second relative east coordinate, and the length of the hanging straight section, the third vertical depth of the end point of the lateral displacement section, the third relative north coordinate of the end point of the lateral displacement section relative to the wellhead, and the third relative east coordinate of the end point of the lateral displacement section relative to the wellhead are calculated by using the following formulas:

[0067] TVD C =TVD B -L D

[0068] NS C =NS B

[0069] EW C =EW B

[0070] Among them, TVD C For the third vertical depth, NS C is the third relative north coordinate, EW C is the third relative east coordinate, TVD B The second vertical depth, NS B is the second relative north coordinate, EW B is the second relative east coordinate, LD is the length of the hanging straight section.

[0071] For the above S104, for example, the track profile of the lateral displacement section can be determined by using the following formula according to the depth of the deflection point, the dogleg degree of the lateral displacement deflection section, and the dogleg degree of the lateral displacement deflection section:

[0072] e=cos(cos(Inc 1 )·cos(Inc 2 )+sin(Inc 1 )·cos(Azi 2 -Azi 1 ))

[0073]

[0074]

[0075]

[0076] NS 2 =NS 1 +n·(sin(Inc 1 )·cos(Azi 1 )+sin(Inc 2 )·cos(Azi 2 ))

[0077] EW 2 =EW 1 +n·(sin(Inc 1 )·sin(Azi 1 )+sin(Inc 2 )·sin(Azi 2 ))

[0078] TVD 2 =TVD 1 +n·(cos(Inc 1 )·cos(Inc 2 ))

[0079] NS 3 =NS 2 +n·(sin(Inc 2 )·cos(Azi 3 )+sin(Inc 3 )·cos(Azi 3 ))

[0080] EW 3 =EW 2 +n·(sin(Inc 2)·sin(Azi 2 )+sin(Inc 3 )·sin(Azi 3 ))

[0081] TVD 3 =TVD 2 +n·(cos(Inc 2 )·cos(Inc 3 ))

[0082] Where, e is the bending angle, Inc 1 is the well inclination angle at the inclination point, Azi 1 is the azimuth of the inclination point, Inc 2 is the well inclination angle of control point 2 in the lateral displacement section, Azi 2 is the azimuth of control point 2 in the lateral displacement segment, Inc 3 is the well inclination angle of control point 3 in the lateral displacement section, Azi 3 is the azimuth of control point 3 in the lateral displacement segment, n is the process value, deltaL 1 DLS is the length from the deflection point to control point 2. 1 is the dogleg degree of the lateral displacement deflection section, deltaL 2 DLS is the length from control point 3 to the end point of the lateral displacement segment. 2 is the dogleg degree of the lateral displacement drop section, TVD 1 is the depth of the inclination point (i.e. the fourth vertical depth of the inclination point), NS 1 EW is the fourth relative north coordinate of the inclination point relative to the wellhead. 1 is the fourth relative east coordinate of the inclination point relative to the wellhead, TVD 2 is the fifth vertical depth of control point 2 in the lateral displacement segment, NS 2 is the fifth relative north coordinate of control point 2 in the lateral displacement segment, EW 2 are the fifth relative east coordinate of control point 2 in the lateral displacement segment, TVD 3 is the sixth vertical depth of control point 3 in the lateral displacement segment, NS 3 is the sixth relative north coordinate of control point 3 in the lateral displacement segment, and EW3 is the sixth relative east coordinate of control point 3 in the lateral displacement segment.

[0083] Specifically, the well inclination angle of the inclination point, the azimuth of the inclination point, the fourth relative north coordinate of the inclination point relative to the wellhead, and the fourth relative east coordinate of the inclination point relative to the wellhead can be configured by the staff in combination with the actual application scenario. The lateral displacement section track profile also includes: the third vertical depth of the end point of the lateral displacement section, the third relative north coordinate of the end point of the lateral displacement section relative to the wellhead, and the third relative east coordinate of the end point of the lateral displacement section relative to the wellhead.

[0084] For the above S105, the track profile from the wellhead to the inclination point is determined based on the relative coordinates of the wellhead (i.e., the coordinate origin), the depth of the inclination point, the fourth relative north coordinate of the inclination point relative to the wellhead, and the fourth relative east coordinate of the inclination point relative to the wellhead. The track profile of the hanging straight section is determined based on the third vertical depth, the third relative north coordinate, the third relative east coordinate, and the length of the hanging straight section.

[0085] Specifically, a discrete interpolation algorithm is used for each track profile, and according to a preset interpolation interval, track profile data corresponding to each interpolation point in each track profile is obtained (one track profile includes at least one interpolation point).

[0086] The track profile data may include at least one of the following: depth measurement, well inclination, azimuth, vertical depth, relative north coordinate relative to the wellhead, relative east coordinate relative to the wellhead, closing distance, closing azimuth, horizontal displacement, and dogleg degree.

[0087] In addition, in one embodiment of the present invention, after obtaining the orbital profile data of each interpolation point of the orbital profile from the wellhead to the inclination point, the orbital profile of the lateral displacement section, the orbital profile of the straightening section, the orbital profile of the pre-target inclination section, and the orbital profile of the pre-target stable inclination section, it also includes: drawing a two-dimensional image or a three-dimensional image of the complete orbital profile according to the orbital profile data of each interpolation point of the orbital profile from the wellhead to the inclination point, the orbital profile of the lateral displacement section, the orbital profile of the straightening section, the orbital profile of the pre-target inclination section, and the orbital profile of the pre-target stable inclination section.

[0088] In this way, a more intuitive display of each track profile of the entire drilling track can be obtained.

[0089] In order to more intuitively understand the implementation process of the drilling trajectory design scheme described in this application, Figure 3 FIG. 1 is an example diagram of an implementation process of a drilling trajectory design method provided by an embodiment of the present invention, including:

[0090] Integrate the geological stratification, lithology, fault, drillability data of the neighboring wells in the block, logging data and well trajectory profile data to determine the target layer of the well and the coordinates and size of the geological target area; call the coordinate measurement, offset and control point calculation model to perform relative position calculation, wellhead coordinate optimization and directional control point calculation, and analyze the difficulty of directional construction through the relative position of the offset and the control point; based on the above process and the deflection tool library, perform auxiliary preset of track design parameters; start the integrated track optimization design calculation module interface, pass parameters into the module, call the algorithm for calculation; use the discrete interpolation algorithm to form the track profile of the entire well section. Adjust the design parameters and repeat the above steps to determine the final track profile.

[0091] The present invention also provides a drilling trajectory design device, as described in the following embodiments. Since the principle of the device to solve the problem is similar to that of the drilling trajectory design method, the implementation of the device can refer to the implementation of the drilling trajectory design method, and the repeated parts will not be repeated.

[0092] like Figure 4 FIG. 1 is a schematic diagram of a drilling trajectory design device provided by an embodiment of the present invention, comprising:

[0093] The first processing module 401 is used to determine the first vertical depth of the target entry point, the first relative north coordinate of the target entry point relative to the wellhead, and the first relative east coordinate of the target entry point relative to the wellhead according to the relative coordinates of the target area relative to the wellhead;

[0094] The second processing module 402 is used to determine the trajectory profile of the pre-target deflection section and the pre-target stable deflection section according to the first vertical depth, the first relative north coordinate, the first relative east coordinate, the well inclination angle of the target, the azimuth, the pre-target section length, and the preset pre-target stable deflection section length; wherein the pre-target deflection section trajectory profile and the pre-target stable deflection section trajectory profile at least include: the second vertical depth of the starting point of the pre-target deflection section, the second relative north coordinate of the starting point of the pre-target deflection section relative to the wellhead, and the second relative east coordinate of the starting point of the pre-target deflection section relative to the wellhead;

[0095] The third processing module 403 is used to calculate the third vertical depth of the end point of the lateral displacement section, the third relative north coordinate of the end point of the lateral displacement section relative to the wellhead, and the third relative east coordinate of the end point of the lateral displacement section relative to the wellhead according to the second vertical depth, the second relative north coordinate, the second relative east coordinate, and the length of the hanging straight section;

[0096] The fourth processing module 404 is used to determine the track profile of the lateral displacement section according to the third vertical depth, the third relative north coordinate, the third relative east coordinate, the depth of the deflection point, the dogleg degree of the lateral displacement deflection section, and the dogleg degree of the lateral displacement downslope section;

[0097] The fifth processing module 405 is used to obtain the track profile data of each interpolation point of the track profile from the wellhead to the inclination point, the track profile of the lateral displacement section, the track profile of the straightening section, the track profile of the pre-target inclination section, and the track profile of the pre-target stabilizing inclination section according to the preset interpolation interval by using a discrete interpolation algorithm; wherein the track profile data includes at least one of the following: depth measurement, well inclination angle, azimuth, vertical depth, relative north coordinate relative to the wellhead, relative east coordinate relative to the wellhead, closing distance, closing azimuth, horizontal displacement, and dogleg degree.

[0098] In a possible implementation, it further includes:

[0099] The sixth processing module is used to determine the relative coordinates of the target area relative to the wellhead and the target area offset according to the wellhead coordinates and the target area coordinates; determine the depth of the inclination point according to the stratigraphic distribution and logging data of the block; determine the well inclination and azimuth of the target according to the target area coordinates; determine the length of the front section of the target according to the reservoir length and reservoir thickness; determine the length of the hanging straight section during drilling according to the target area depth and drilling time; determine the dogleg degree of the lateral displacement inclination section and the dogleg degree of the lateral displacement down-slope section according to the inclination rate of the inclination tool and the target area offset.

[0100] In a possible implementation, the second processing module is specifically used to calculate the track profile of the pre-target deflection section and the pre-target stabilization section according to the first vertical depth, the first relative north coordinate, the first relative east coordinate, the pre-target section length, and the preset pre-target stabilization section length by using the following formula:

[0101] S L =L target *sin(Inc target )

[0102] D L =L target *cos(Inc target )

[0103] TVD A =TVD target -D L

[0104] NS A =NS target -S L ·cos(Azi target )

[0105] EW A =EW target -S L ·sin(Azi target )

[0106] S C =S t -S L

[0107]

[0108]

[0109]

[0110] TVD B =TVD A -D C

[0111] NS B =NS A -S C ·cos(Azi target )

[0112] EW B =EW A -S C ·sin(Azi target )

[0113] Among them, S L is the horizontal displacement of the target front stable tilt section, D L The vertical displacement of the target front stabilization section is TVD A NS is the vertical depth of the starting point of the pre-target stable slope section, A is the relative north coordinate of the starting point of the pre-target stable slope section, EW A is the relative east coordinate of the starting point of the pre-target stable slope section, L target is the length of the preset target front stable slope section, Inc target is the well inclination angle of the target, Azi target is the azimuth of the target, TVD target is the first vertical depth, NS target is the first relative north coordinate, EW target is the first relative east coordinate, S C is the horizontal displacement of the deflection section before the target, S t CL is the length of the target segment. c is the length of the bevel section before the target, R is the curvature radius of the bevel section before the target, and D c is the vertical displacement of the deflection section before the target, TVD B The second vertical depth, NS B is the second relative north coordinate, EW B is the second relative east coordinate. The other symbols are used for vector calculation and have no physical meaning.

[0114] In a possible implementation, the third processing module is specifically used to calculate the third vertical depth of the end point of the lateral displacement section, the third relative north coordinate of the end point of the lateral displacement section relative to the wellhead, and the third relative east coordinate of the end point of the lateral displacement section relative to the wellhead by using the following formula according to the second vertical depth, the second relative north coordinate, the second relative east coordinate, and the length of the hanging straight section:

[0115] TVD C =TVD B -L D

[0116] NS C =NS B

[0117] EW C =EW B

[0118] Among them, TVD C For the third vertical depth, NS C is the third relative north coordinate, EW C is the third relative east coordinate, TVD B The second vertical depth, NS B is the second relative north coordinate, EW B is the second relative east coordinate, L D is the length of the hanging straight section.

[0119] In a possible implementation, the fourth processing module is specifically used to determine the track profile of the lateral displacement section by using the following formula according to the depth of the deflection point, the dogleg degree of the lateral displacement deflection section, and the dogleg degree of the lateral displacement downslope section:

[0120] e=cos(cos(Inc 1 )·cos(Inc 2 )+sin(Inc 1 )·cos(Azi 2 -Azi 1 ))

[0121]

[0122]

[0123]

[0124] NS 2 =NS 1 +n·(sin(Inc 1 )·cos(Azi 1 )+sin(Inc 2 )·cos(Azi 2 ))

[0125] EW 2 =EW 1 +n·(sin(Inc 1 )·sin(Azi 1 )+sin(Inc 2 )·sin(Azi 2 ))

[0126] TVD 2 =TVD 1 +n·(cos(Inc 1 )·cos(Inc 2 ))

[0127] NS 3 =NS2 +n·(sin(Inc 2 )·cos(Azi 3 )+sin(Inc 3 )·cos(Azi 3 ))

[0128] EW 3 =EW 2 +n·(sin(Inc 2 )·sin(Azi 2 )+sin(Inc 3 )·sin(Azi 3 ))

[0129] TVD 3 =TVD 2 +n·(cos(Inc 2 )·cos(Inc 3 ))

[0130] Where, e is the bending angle, Inc 1 is the well inclination angle at the inclination point, Azi 1 is the azimuth of the inclination point, Inc 2 is the well inclination angle of control point 2 in the lateral displacement section, Azi 2 is the azimuth of control point 2 in the lateral displacement segment, Inc 3 is the well inclination angle of control point 3 in the lateral displacement section, Azi 3 is the azimuth of control point 3 in the lateral displacement segment, n is the process value, deltaL 1 DLS is the length from the deflection point to control point 2. 1 is the dogleg degree of the lateral displacement deflection section, deltaL 2 DLS is the length from control point 3 to the end point of the lateral displacement segment. 2 is the dogleg degree of the lateral displacement drop section, TVD 1 is the depth of the inclination point, NS 1 EW is the fourth relative north coordinate of the inclination point relative to the wellhead. 1 is the fourth relative east coordinate of the inclination point relative to the wellhead, TVD 2 is the fifth vertical depth of control point 2 in the lateral displacement segment, NS 2 is the fifth relative north coordinate of control point 2 in the lateral displacement segment, EW 2 are the fifth relative east coordinate of control point 2 in the lateral displacement segment, TVD 3 is the sixth vertical depth of control point 3 in the lateral displacement segment, NS 3 is the sixth relative north coordinate of control point 3 in the lateral displacement segment, and EW3 is the sixth relative east coordinate of control point 3 in the lateral displacement segment.

[0131] In a possible implementation, it further includes:

[0132] Image drawing module, used to draw a 2D or 3D image of the complete track profile based on the track profile data of each interpolation point from the wellhead to the deflection point, the lateral displacement section, the hanging straight section, the pre-target deflection section, and the pre-target stable deflection section.

[0133] An embodiment of the present invention further provides a computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned drilling trajectory design method when executing the computer program.

[0134] An embodiment of the present invention further provides 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 above-mentioned drilling trajectory design method is implemented.

[0135] Based on the above invention concept, Figure 5 As shown, the present invention also proposes a computer device 500, including a memory 510, a processor 520, and a computer program 530 stored in the memory 510 and executable on the processor 520, wherein the processor 520 implements the aforementioned drilling trajectory design method when executing the computer program 530.

[0136] In an embodiment of the present invention, a first vertical depth of the target entry point, a first relative north coordinate of the target entry point relative to the wellhead, and a first relative east coordinate of the target entry point relative to the wellhead are determined according to the relative coordinates of the target area relative to the wellhead; a track profile of the target front deflection section and a track profile of the target front stable deflection section are determined according to the first vertical depth, the first relative north coordinate, the first relative east coordinate, the well inclination angle of the target entry, the azimuth, the length of the target front section, and the preset length of the target front stable deflection section; wherein the track profile of the target front deflection section and the track profile of the target front stable deflection section at least include: a second vertical depth of the starting point of the target front deflection section, a second relative north coordinate of the starting point of the target front deflection section relative to the wellhead, and a second relative east coordinate of the starting point of the target front deflection section relative to the wellhead; a third vertical depth of the end point of the lateral displacement section and a third relative north coordinate of the end point of the lateral displacement section relative to the wellhead are calculated according to the second vertical depth, the second relative north coordinate, the second relative east coordinate, and the length of the hanging straight section. , the third relative east coordinate of the end point of the lateral displacement section relative to the wellhead; determine the track profile of the lateral displacement section according to the third vertical depth, the third relative north coordinate, the third relative east coordinate, the depth of the deflecting point, the dogleg degree of the lateral displacement deflecting section, and the dogleg degree of the lateral displacement descending section; for the track profile from the wellhead to the deflecting point, the track profile of the lateral displacement section, the track profile of the hanging straight section, the track profile of the deflecting section before the target, and the track profile of the stable inclination section before the target, a discrete interpolation algorithm is used to obtain the track profile data of each interpolation point of the track profile from the wellhead to the deflecting point, the track profile of the lateral displacement section, the track profile of the hanging straight section, the track profile of the deflecting section before the target, and the track profile of the stable inclination section before the target according to a preset interpolation interval; wherein the track profile data includes at least one of the following: depth measurement, well inclination angle, azimuth, vertical depth, relative north coordinate relative to the wellhead, relative east coordinate relative to the wellhead, closing distance, closing azimuth, horizontal displacement, and dogleg degree. In this way, by using a small number of engineering parameters to complete the integrated trajectory profile design from the wellhead to the target area, the calculation efficiency and design effect of the trajectory design of long horizontal sections and cluster wells can be improved, the correlation between the trajectory design method and engineering parameters can be improved, and the difficulty of use can be reduced.

[0137] 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.

[0138] 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.

[0139] 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 comprising 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.

[0140] 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. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0141] 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 drilling trajectory design method, characterized in that: include: According to the relative coordinates of the target area relative to the wellhead, determine the first vertical depth of the target entry point, the first relative north coordinate of the target entry point relative to the wellhead, and the first relative east coordinate of the target entry point relative to the wellhead; According to the first vertical depth, the first relative north coordinate, the first relative east coordinate, the well inclination angle of the target, the azimuth, the length of the front section of the target, and the preset length of the front stable inclination section, the track profile of the front deflection section of the target and the track profile of the front stable inclination section of the target are determined; wherein the track profile of the front deflection section of the target and the track profile of the front stable inclination section of the target at least include: the second vertical depth of the starting point of the front deflection section of the target, the second relative north coordinate of the starting point of the front deflection section of the target relative to the wellhead, and the second relative east coordinate of the starting point of the front deflection section of the target relative to the wellhead; According to the second vertical depth, the second relative north coordinate, the second relative east coordinate, and the length of the hanging straight section, the third vertical depth of the end point of the lateral displacement section, the third relative north coordinate of the end point of the lateral displacement section relative to the wellhead, and the third relative east coordinate of the end point of the lateral displacement section relative to the wellhead are calculated; Determine the track profile of the lateral displacement section according to the third vertical depth, the third relative north coordinate, the third relative east coordinate, the depth of the deflection point, the dogleg degree of the lateral displacement deflection section, and the dogleg degree of the lateral displacement downslope section; For the track profile from the wellhead to the inclination point, the track profile of the lateral displacement section, the track profile of the straightening section, the track profile of the inclination section before the target, and the track profile of the inclination stabilization section before the target, a discrete interpolation algorithm is used to obtain the track profile data of each interpolation point of the track profile from the wellhead to the inclination point, the track profile of the lateral displacement section, the track profile of the straightening section, the track profile of the inclination section before the target, and the track profile of the inclination stabilization section before the target according to the preset interpolation interval; wherein the track profile data includes at least one of the following: depth measurement, well inclination angle, azimuth, vertical depth, relative north coordinate relative to the wellhead, relative east coordinate relative to the wellhead, closing distance, closing azimuth, horizontal displacement, and dogleg degree; According to the first vertical depth, the first relative north coordinate, the first relative east coordinate, the length of the target front section, and the preset length of the target front stabilizing inclination section, the track profile of the target front stabilizing inclination section and the track profile of the target front stabilizing inclination section are determined, including: According to the first vertical depth, the first relative north coordinate, the first relative east coordinate, the length of the target front section, and the preset length of the target front stabilizing section, the track profile of the target front deflecting section and the track profile of the target front stabilizing section are calculated by using the following formula: Among them, S L is the horizontal displacement of the stable tilt section before the target, D L The vertical displacement of the pre-target stabilization section is TVD A NS is the vertical depth of the starting point of the pre-target stable slope section, A is the relative north coordinate of the starting point of the pre-target stable slope section, EW A is the relative east coordinate of the starting point of the pre-target stable slope section, L target is the length of the preset target front stable slope section, Inc target is the well inclination angle of the target, Azi target is the azimuth of the target, TVD target is the first vertical depth, NS target is the first relative north coordinate, EW target is the first relative east coordinate, S C is the horizontal displacement of the deflection section before the target, S t CL is the length of the target segment. c is the length of the bevel section before the target, R is the curvature radius of the bevel section before the target, and D c is the vertical displacement of the deflection section before the target, TVD B The second vertical depth, NS B is the second relative north coordinate, EW B is the second relative east coordinate; According to the second vertical depth, the second relative north coordinate, the second relative east coordinate, and the length of the hanging straight section, the third vertical depth of the end point of the lateral displacement section, the third relative north coordinate of the end point of the lateral displacement section relative to the wellhead, and the third relative east coordinate of the end point of the lateral displacement section relative to the wellhead are calculated by using the following formulas: Among them, TVD C For the third vertical depth, NS C is the third relative north coordinate, EW C is the third relative east coordinate, TVD B The second vertical depth, NS B is the second relative north coordinate, EW B is the second relative east coordinate, L D is the length of the hanging straight section; After obtaining the track profile data of each interpolation point of the track profile from the wellhead to the inclination point, the track profile of the lateral displacement section, the track profile of the straightening section, the track profile of the inclination section before the target, and the track profile of the stable inclination section before the target, it also includes: drawing a two-dimensional image or a three-dimensional image of the complete track profile according to the track profile data of each interpolation point of the track profile from the wellhead to the inclination point, the track profile of the lateral displacement section, the track profile of the straightening section, the track profile of the inclination section before the target, and the track profile of the stable inclination section before the target.

2. The drilling trajectory design method according to claim 1, characterized in that: Before determining the first vertical depth of the target entry point, the first relative north coordinate of the target entry point relative to the wellhead, and the first relative east coordinate of the target entry point relative to the wellhead according to the relative coordinates of the target area relative to the wellhead, the method further includes: According to the wellhead coordinates and the target area coordinates, determine the relative coordinates of the target area relative to the wellhead and the target area offset; Determine the depth of the deflection point based on the stratigraphic distribution and logging data of the block; According to the target area coordinates, determine the well inclination and azimuth of the target; Determine the length of the target front section according to the reservoir length and thickness; Determine the length of the vertical section during drilling based on the target area depth and drilling time; According to the deflection rate of the deflection tool and the offset distance of the target area, the dogleg degree of the lateral displacement deflection section and the dogleg degree of the lateral displacement downslope section are determined.

3. A drilling trajectory design device, characterized in that: include: A first processing module is used to determine a first vertical depth of the target entry point, a first relative north coordinate of the target entry point relative to the wellhead, and a first relative east coordinate of the target entry point relative to the wellhead according to the relative coordinates of the target area relative to the wellhead; The second processing module is used to determine the track profile of the pre-target deflection section and the track profile of the pre-target stable deflection section according to the first vertical depth, the first relative north coordinate, the first relative east coordinate, the well inclination angle of the target, the azimuth, the length of the pre-target section, and the preset length of the pre-target stable deflection section; wherein the track profile of the pre-target deflection section and the track profile of the pre-target stable deflection section at least include: the second vertical depth of the starting point of the pre-target deflection section, the second relative north coordinate of the starting point of the pre-target deflection section relative to the wellhead, and the second relative east coordinate of the starting point of the pre-target deflection section relative to the wellhead; The third processing module is used to calculate the third vertical depth of the end point of the lateral displacement section, the third relative north coordinate of the end point of the lateral displacement section relative to the wellhead, and the third relative east coordinate of the end point of the lateral displacement section relative to the wellhead according to the second vertical depth, the second relative north coordinate, the second relative east coordinate, and the length of the hanging straight section; The fourth processing module is used to determine the track profile of the lateral displacement section according to the third vertical depth, the third relative north coordinate, the third relative east coordinate, the depth of the deflection point, the dogleg degree of the lateral displacement deflection section, and the dogleg degree of the lateral displacement downslope section; The fifth processing module is used to obtain the track profile data of each interpolation point of the track profile from the wellhead to the inclination point, the track profile of the lateral displacement section, the track profile of the hanging straight section, the track profile of the target before the inclination section, and the track profile of the target before the stable inclination section by using a discrete interpolation algorithm according to a preset interpolation interval; wherein the track profile data includes at least one of the following: depth measurement, well inclination angle, azimuth, vertical depth, relative north coordinate relative to the wellhead, relative east coordinate relative to the wellhead, closing distance, closing azimuth, horizontal displacement, and dogleg degree; The second processing module is specifically used to calculate the track profile of the pre-target deflection section and the pre-target stabilization section by using the following formula according to the first vertical depth, the first relative north coordinate, the first relative east coordinate, the pre-target section length, and the preset pre-target stabilization section length: Among them, S L is the horizontal displacement of the stable tilt section before the target, D L The vertical displacement of the pre-target stabilization section is TVD A NS is the vertical depth of the starting point of the pre-target stable slope section, A is the relative north coordinate of the starting point of the pre-target stable slope section, EW A is the relative east coordinate of the starting point of the pre-target stable slope section, L target is the length of the preset target front stable slope section, Inc target is the well inclination angle of the target, Azi target is the azimuth of the target, TVD target is the first vertical depth, NS target is the first relative north coordinate, EW target is the first relative east coordinate, S C is the horizontal displacement of the deflection section before the target, S t CL is the length of the target segment. c is the length of the bevel section before the target, R is the curvature radius of the bevel section before the target, and D c is the vertical displacement of the deflection section before the target, TVD B The second vertical depth, NS B is the second relative north coordinate, EW B is the second relative east coordinate; The third processing module is specifically used to calculate the third vertical depth of the end point of the lateral displacement section, the third relative north coordinate of the end point of the lateral displacement section relative to the wellhead, and the third relative east coordinate of the end point of the lateral displacement section relative to the wellhead by using the following formula according to the second vertical depth, the second relative north coordinate, the second relative east coordinate, and the length of the hanging straight section: Among them, TVD C For the third vertical depth, NS C is the third relative north coordinate, EW C is the third relative east coordinate, TVD B The second vertical depth, NS B is the second relative north coordinate, EW B is the second relative east coordinate, L D is the length of the hanging straight section; The image drawing module is used to draw a two-dimensional or three-dimensional image of the complete track profile based on the track profile data of each interpolation point from the wellhead to the deflection point, the lateral displacement section, the straightening section, the pre-target deflection section, and the pre-target stabilizing section.

4. The drilling trajectory design device according to claim 3, characterized in that: Also includes: A sixth processing module, for determining the relative coordinates of the target area relative to the wellhead and the target area offset according to the wellhead coordinates and the target area coordinates; Determine the depth of the deflection point based on the stratigraphic distribution and logging data of the block; According to the target area coordinates, determine the well inclination and azimuth of the target; Determine the length of the target front section according to the reservoir length and thickness; Determine the length of the vertical section during drilling based on the target area depth and drilling time; According to the deflection rate of the deflection tool and the offset distance of the target area, the dogleg degree of the lateral displacement deflection section and the dogleg degree of the lateral displacement downslope section are determined.

5. 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 2 is implemented.

6. 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 2 is implemented.

7. 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 2 is implemented.

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