Method, device and equipment for well site layout determination and storage medium

Abstract

The application discloses a kind of for well site layout determination method, device, equipment and storage medium, belong to oil and gas well engineering technical field.The determination method includes: obtaining the target point information of multiple target points on target reservoir area, the build-up point information of target build-up point and initial well site information;According to the target point information of multiple target points, the build-up point information of multiple target build-up points and initial well site information, determine the intermediate well site layout parameter corresponding to target reservoir area;In the case where the distance between any one intermediate well site position and the corresponding initial well site position does not satisfy the preset distance deviation range, update the initial well site information based on the intermediate well site position, and repeat the above steps until the distance between all intermediate well site positions and the corresponding initial well site positions satisfies the preset distance deviation range, to obtain the target well site layout parameter corresponding to target reservoir area.The application is used to improve the planning efficiency of well site layout.

Description

Technical Field

[0001] This application relates to the field of oil and gas well engineering technology, and specifically to a method, apparatus, equipment and storage medium for determining well site layout. Background Technology

[0002] In oil and gas field development, efficient extraction of oil and gas resources often relies on large-scale well site layout planning, and the rationality of this planning directly impacts extraction efficiency. Currently, well site layout planning typically depends on the operational experience of personnel. Multiple well site layout schemes are developed, and the most cost-effective scheme is selected for further rational planning. However, existing technologies rely too heavily on the experience of operational personnel. For large-scale well site layouts, this requires significant time investment, leading to low planning efficiency. Summary of the Invention

[0003] The purpose of this application is to provide a method, apparatus, equipment, storage medium, and program product for determining well site layout, in order to solve the problem of low planning efficiency of well site layout in the prior art.

[0004] To achieve the above objectives, the first aspect of this application provides a method for determining well site layout, the method comprising:

[0005] Acquire target information of multiple target points in the target reservoir area, build-up point information of the target build-up points corresponding to each target point, and initial well site information. The initial well site information includes the number of initial well sites and the location of the initial well sites. Based on the pre-constructed well site layout parameter optimization model, preset wellbore trajectory constraints, preset well site drilling quantity constraints, preset drilling trajectory cost constraints, and preset well site quantity constraints, the intermediate well site layout parameters corresponding to the target reservoir area are determined according to the target point information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information. The intermediate well site layout parameters include the intermediate target point allocation relationship, the intermediate well site location, and the intermediate well site quantity. The intermediate target point allocation relationship includes the correspondence between the intermediate well site, the target target point, and the target build-up point. If the distance between any intermediate well site location and the corresponding initial well site location does not meet the preset distance deviation range, the initial well site information is updated based on the intermediate well site location, and the above steps are repeated until the distance between all intermediate well site locations and the corresponding initial well site locations meets the preset distance deviation range, so as to obtain the target well site layout parameters corresponding to the target reservoir area.

[0006] In this embodiment, the well site layout parameter optimization model includes a wellbore trajectory cost function, a wellbore trajectory planning algorithm, a target point allocation algorithm, and a well site location algorithm. Based on the pre-constructed well site layout parameter optimization model, preset wellbore trajectory constraints, preset well site drilling quantity constraints, preset drilling trajectory cost constraints, and preset well site quantity constraints, the intermediate well site layout parameters corresponding to the target reservoir area are determined according to the target point information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information. This includes: based on the wellbore trajectory cost function, wellbore trajectory planning algorithm, preset wellbore trajectory constraints, and preset drilling trajectory cost constraints, and according to the target point information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information, determining the initial well site quantity corresponding to each initial well site and all target target points. The algorithm identifies multiple first target wellbore trajectories and their corresponding trajectory costs. Based on the target allocation algorithm, preset well site drilling quantity constraints, preset well site quantity constraints, and preset drilling trajectory cost constraints, the algorithm selects the second target wellbore trajectories corresponding to intermediate well sites from the first target wellbore trajectories from the initial well site corresponding to the initial well site to each target target point, according to the trajectory cost. This yields the intermediate target allocation relationship, where the sum of the trajectory costs of all second target wellbore trajectories corresponding to intermediate well sites is minimized. Based on the well site location algorithm, wellbore trajectory cost function, preset drilling trajectory cost constraints, and preset wellbore trajectory constraints, the algorithm adjusts the initial well site position corresponding to the intermediate well site according to the intermediate target allocation relationship and the trajectory cost of the second target wellbore trajectories, to obtain the intermediate well site position of the intermediate well site.

[0007] In this embodiment, based on the wellbore trajectory cost function, wellbore trajectory planning algorithm, preset wellbore trajectory constraints, and preset drilling trajectory cost constraints, and according to the target information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information, multiple first target wellbore trajectories between each initial well site and all target points, and the trajectory cost corresponding to each first target wellbore trajectory are determined. This includes: based on the wellbore trajectory planning algorithm and preset wellbore trajectory constraints, and according to the target information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information, determining multiple candidate wellbore trajectories from each initial well site to each target point; and based on the wellbore trajectory cost function and preset drilling trajectory cost constraints, selecting the first target wellbore trajectories from each initial well site to each target point from the multiple candidate wellbore trajectories from each initial well site to each target point, and determining the trajectory cost corresponding to each first target wellbore trajectory.

[0008] In this embodiment of the application, the trajectory cost corresponding to the first target wellbore trajectory includes: the trajectory cost corresponding to the length of the vertical section in the first target wellbore trajectory, and the trajectory cost corresponding to the length of the curved section in the first target wellbore trajectory, wherein the length of the vertical section is the trajectory length between the initial well site position and the corresponding target kick-in point in the first target wellbore trajectory, and the length of the curved section is the trajectory length between the target kick-in point and the corresponding target target point in the first target wellbore trajectory.

[0009] In this embodiment of the application, updating the initial well site information based on the intermediate well site location includes: when the distance between any number of intermediate well site locations is less than a preset distance threshold, merging multiple intermediate well site locations and updating the number of initial well sites in the initial well site information; when the distance between all intermediate well site locations is greater than or equal to the preset distance threshold, replacing the initial well site location in the initial well site information with an intermediate well site location.

[0010] In this embodiment of the application, the preset wellbore trajectory constraints include: preset curved section rotation angle constraints, preset well inclination angle constraints, and preset dogleg degree constraints.

[0011] A second aspect of this application provides an apparatus for determining well site layout, comprising: The parameter acquisition module is used to acquire target information of multiple target points in the target reservoir area, build-up point information of the target build-up points corresponding to each target point, and initial well site information. The initial well site information includes the number of initial well sites and the initial well site location. The parameter optimization module is used to determine the intermediate well site layout parameters corresponding to the target reservoir area based on the pre-constructed well site layout parameter optimization model, preset well trajectory constraints, preset well site drilling quantity constraints, preset drilling trajectory cost constraints, and preset well site quantity constraints, according to the target point information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information. The intermediate well site layout parameters include the intermediate target point allocation relationship, the intermediate well site location, and the intermediate well site quantity. The intermediate target point allocation relationship includes the correspondence between the intermediate well site, the target target point, and the target build-up point. The parameter iteration module is used to update the initial well site information based on the intermediate well site location when the distance between any intermediate well site location and the corresponding initial well site location does not meet the preset distance deviation range. The above steps are repeated until the distance between all intermediate well site locations and the corresponding initial well site locations meets the preset distance deviation range, so as to obtain the target well site layout parameters corresponding to the target reservoir area.

[0012] In this embodiment, the well site layout parameter optimization model includes a wellbore trajectory cost function, a wellbore trajectory planning algorithm, a target point allocation algorithm, and a well site location algorithm. The parameter optimization module is further used to: determine, based on the wellbore trajectory cost function, the wellbore trajectory planning algorithm, preset wellbore trajectory constraints, and preset drilling trajectory cost constraints, and according to the target point information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information, multiple first target wellbore trajectories between each initial well site and all target target points, and the trajectory cost corresponding to each first target wellbore trajectory; and based on the target point allocation algorithm, preset well site drilling quantity constraints, and preset well site number... Based on quantity constraints and preset drilling trajectory cost constraints, and according to trajectory costs, the second target wellbore trajectories corresponding to intermediate well sites are selected from the first target wellbore trajectories from the initial well sites corresponding to the initial well sites to each target point, so as to obtain the intermediate target point allocation relationship. Among them, the sum of trajectory costs of the second target wellbore trajectories corresponding to all intermediate well sites is minimized. Based on the well site location algorithm, wellbore trajectory cost function, preset drilling trajectory cost constraints, and preset wellbore trajectory constraints, the initial well site position corresponding to the intermediate well site is adjusted according to the intermediate target point allocation relationship and the trajectory cost of the second target wellbore trajectories, so as to obtain the intermediate well site position of the intermediate well site.

[0013] In this embodiment of the application, the parameter optimization module is further configured to: determine multiple candidate wellbore trajectories from each initial well site to each target target site based on the wellbore trajectory planning algorithm and preset wellbore trajectory constraints, according to the target point information of multiple target target sites, the build-up point information of multiple target build-up points, and the initial well site information; and select the first target wellbore trajectory from each initial well site to each target target site from the multiple candidate wellbore trajectories from each initial well site to each target target site based on the wellbore trajectory cost function and preset drilling trajectory cost constraints, and determine the trajectory cost corresponding to each first target wellbore trajectory.

[0014] In this embodiment of the application, the trajectory cost corresponding to the first target wellbore trajectory includes: the trajectory cost corresponding to the length of the vertical section in the first target wellbore trajectory, and the trajectory cost corresponding to the length of the curved section in the first target wellbore trajectory, wherein the length of the vertical section is the trajectory length between the initial well site position and the corresponding target kick-in point in the first target wellbore trajectory, and the length of the curved section is the trajectory length between the target kick-in point and the corresponding target target point in the first target wellbore trajectory.

[0015] In this embodiment of the application, the parameter iteration module is further configured to: merge multiple intermediate well site locations and update the number of initial well sites in the initial well site information when the distance between any number of intermediate well site locations is less than a preset distance threshold; and replace the initial well site location in the initial well site information with an intermediate well site location when the distance between all intermediate well site locations is greater than or equal to the preset distance threshold.

[0016] In this embodiment of the application, the preset wellbore trajectory constraints include: preset curved section rotation angle constraints, preset well inclination angle constraints, and preset dogleg degree constraints.

[0017] A third aspect of this application provides an apparatus for determining a well site layout, comprising: a memory configured to store instructions; and a processor configured to retrieve the instructions from the memory and, when executing the instructions, to implement the method for determining a well site layout as described above.

[0018] A fourth aspect of this application provides a machine-readable storage medium storing instructions for causing a machine to perform the method for determining well site layout described above.

[0019] The fifth aspect of this application provides a computer program product, including a computer program that, when executed by a processor, implements the method for determining well site layout described above.

[0020] The above technical solution, by acquiring target information of multiple target points in the target reservoir area, target build-up point information corresponding to each target point, and initial well site information, including the initial well site number and initial well site location, determines the intermediate well site layout parameters corresponding to the target reservoir area based on a pre-constructed well site layout parameter optimization model, preset wellbore trajectory constraints, preset well site drilling quantity constraints, preset drilling trajectory cost constraints, and preset well site quantity constraints, according to the target information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information. The intermediate well site layout parameters include the intermediate target point allocation relationship, the intermediate well site location, and the intermediate well site number. The inter-target point allocation relationship includes the correspondence between intermediate well sites, target target points, and target build-up points. If the distance between any intermediate well site location and its corresponding initial well site location does not meet the preset distance deviation range, the initial well site information is updated based on the intermediate well site location, and the above steps are repeated until the distance between all intermediate well site locations and their corresponding initial well site locations meets the preset distance deviation range, so as to obtain the target well site layout parameters corresponding to the target reservoir area. Compared with the existing technology, it does not rely on the operating experience of the operators. Even when facing large-scale well site layouts, it can take into account various constraints on the well site layout, achieve accurate planning of the well site layout in a short time, and improve the planning efficiency of the well site layout.

[0021] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. In the drawings: Figure 1 The illustration shows a flowchart of a method for determining well site layout according to an embodiment of this application; Figure 2 The illustration shows a flowchart of a method for determining well site layout according to another embodiment of this application. Detailed Implementation

[0023] 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. It should be understood that the specific embodiments described herein are only for illustration and explanation of the embodiments of this application and are not intended to limit the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0024] It should be noted that the acquisition, transmission, storage, use, and processing of data in the technical solution of this application all comply with relevant laws and regulations. In the embodiments of this application, certain existing industry solutions such as software, components, and models may be mentioned. These should be considered exemplary, intended only to illustrate the feasibility of implementing the technical solution of this application, and do not imply that the applicant has already used or necessarily used such solutions.

[0025] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0027] Figure 1 The illustration schematically shows a flowchart of a method for determining well site layout according to an embodiment of this application. Figure 1 As shown in the illustration, this application provides a method for determining well site layout. Taking the application of this method to a processor as an example, the method may include the following steps: Step S101: Obtain target information of multiple target points in the target reservoir area, build-up point information of the target build-up points corresponding to each target point, and initial well site information. The initial well site information includes the number of initial well sites and the initial well site location.

[0028] Step S102: Based on the pre-constructed well site layout parameter optimization model, preset wellbore trajectory constraints, preset well site drilling quantity constraints, preset drilling trajectory cost constraints, and preset well site quantity constraints, the intermediate well site layout parameters corresponding to the target reservoir area are determined according to the target point information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information. The intermediate well site layout parameters include the intermediate target point allocation relationship, the intermediate well site location, and the intermediate well site quantity. The intermediate target point allocation relationship includes the correspondence between the intermediate well site, the target target point, and the target build-up point.

[0029] Step S103: If the distance between any intermediate well site location and the corresponding initial well site location does not meet the preset distance deviation range, update the initial well site information based on the intermediate well site location, and repeat the above steps until the distance between all intermediate well site locations and the corresponding initial well site locations meets the preset distance deviation range, so as to obtain the target well site layout parameters corresponding to the target reservoir area.

[0030] It can be understood that the target reservoir area is the reservoir region containing oil. The target target point is the endpoint of a pre-determined wellbore trajectory within the target reservoir area. Target point information includes relevant information about the target target point, which may include, but is not limited to, the target point's location and orientation. The target build-up point is a pre-set turning point that changes the wellbore's orientation; each target target point corresponds to one target build-up point. Build-up point information includes information about the target build-up point, which may include, but is not limited to, the build-up point's location, orientation, and depth relative to the ground. Initial well site information includes pre-set initial information related to the well site, which may include, but is not limited to, the number of initial well sites, the location of the initial well sites, the number of initial well sites (e.g., 9 initial well sites), the latitude and longitude or three-dimensional location of the initial well sites on the ground, and the initially selected well sites. The pre-constructed well site layout parameter optimization model is a pre-constructed model used for optimizing well site layout parameters. The preset wellbore trajectory constraints are the constraints that limit the design of wellbore trajectories for directional drilling. The preset well site drilling quantity constraints are the upper limit of the number of wells allowed for each initial well site due to limitations in site space or geological conditions. For example, well site 1 allows 20 wells, while well site 2 allows 30 wells. The preset drilling trajectory cost constraints are the constraints on the trajectory cost during drilling operations. These constraints can be the constraints that minimize the drilling trajectory cost, or they can be constraints that are less than the preset total drilling cost budget. The preset well site quantity constraints are the constraints on the number of well sites, for example, 4 to 9 well sites. Intermediate well site layout parameters are intermediate parameters generated during the well site layout parameter optimization process. These intermediate well site layout parameters may include, but are not limited to, intermediate target point allocation relationships, intermediate well site locations, and the number of intermediate well sites. Intermediate target point allocation relationships are transitional target point allocation relationships generated during the well site layout parameter optimization process. These relationships can include the correspondence between intermediate well sites, target targets, and target build-up points. Intermediate well site locations are temporarily selected well site locations during the well site layout parameter optimization process. The number of intermediate well sites is the number of well sites temporarily selected during the well site layout parameter optimization process. The preset distance deviation range is a pre-set distance deviation range, for example, 1m-5m. The target well site layout parameters are the final well site layout parameters obtained after the well site layout parameter optimization process, satisfying all the above constraints.

[0031] Specifically, the processor can pre-acquire target information for multiple target points in the target reservoir area, such as the specific location and orientation of the target points. The processor can also pre-acquire build-up information for each target point's corresponding build-up point, such as the specific location, orientation, or depth of each build-up point. The processor can also pre-acquire initial well site information, i.e., the number and location of the pre-determined initial well sites. Furthermore, the processor can input the target information of multiple target points, the build-up information of multiple target build-up points, and the initial well site information into a pre-constructed well site layout parameter optimization model. Under the conditions of satisfying preset wellbore trajectory constraints, preset well site drilling quantity constraints, preset drilling trajectory cost constraints, and preset well site quantity constraints, the well site layout parameter optimization model outputs the intermediate well site layout parameters corresponding to the target reservoir area. Further, the processor can determine whether the distance between the location of each intermediate well site and the initial intermediate well site location corresponding to that intermediate well site satisfies the given conditions. If the distance between any intermediate well site location and its corresponding initial well site location does not meet the preset distance deviation range, then the obtained intermediate well site layout parameters are considered not to be the optimal well site layout parameters. Iterative updates are required, that is, the initial well site information is updated based on the intermediate well site locations, and the above parameter acquisition and model optimization process is repeated until the distance between all intermediate well site locations and their corresponding initial well site locations meets the preset distance deviation range. At this point, it is indicated that the well site layout parameters obtained by iterative updates are the optimal well site layout parameters, i.e., the target well site layout parameters.

[0032] The above technical solution, by acquiring target information of multiple target points in the target reservoir area, target build-up point information corresponding to each target point, and initial well site information, including the initial well site number and initial well site location, determines the intermediate well site layout parameters corresponding to the target reservoir area based on a pre-constructed well site layout parameter optimization model, preset wellbore trajectory constraints, preset well site drilling quantity constraints, preset drilling trajectory cost constraints, and preset well site quantity constraints, according to the target information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information. The intermediate well site layout parameters include the intermediate target point allocation relationship, the intermediate well site location, and the intermediate well site number. The inter-target point allocation relationship includes the correspondence between intermediate well sites, target target points, and target build-up points. If the distance between any intermediate well site location and its corresponding initial well site location does not meet the preset distance deviation range, the initial well site information is updated based on the intermediate well site location, and the above steps are repeated until the distance between all intermediate well site locations and their corresponding initial well site locations meets the preset distance deviation range, so as to obtain the target well site layout parameters corresponding to the target reservoir area. Compared with the existing technology, it does not rely on the operating experience of the operators. Even when facing large-scale well site layouts, it can take into account various constraints on the well site layout, achieve accurate planning of the well site layout in a short time, and improve the planning efficiency of the well site layout.

[0033] In this embodiment, the well site layout parameter optimization model includes a wellbore trajectory cost function, a wellbore trajectory planning algorithm, a target point allocation algorithm, and a well site location algorithm. Based on the pre-constructed well site layout parameter optimization model, preset wellbore trajectory constraints, preset well site drilling quantity constraints, preset drilling trajectory cost constraints, and preset well site quantity constraints, the intermediate well site layout parameters corresponding to the target reservoir area are determined according to the target point information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information. This includes: based on the wellbore trajectory cost function, wellbore trajectory planning algorithm, preset wellbore trajectory constraints, and preset drilling trajectory cost constraints, and according to the target point information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information, determining the initial well site quantity corresponding to each initial well site and all target target points. The algorithm identifies multiple first target wellbore trajectories and their corresponding trajectory costs. Based on the target allocation algorithm, preset well site drilling quantity constraints, preset well site quantity constraints, and preset drilling trajectory cost constraints, the algorithm selects the second target wellbore trajectories corresponding to intermediate well sites from the first target wellbore trajectories from the initial well site corresponding to the initial well site to each target target point, according to the trajectory cost. This yields the intermediate target allocation relationship, where the sum of the trajectory costs of all second target wellbore trajectories corresponding to intermediate well sites is minimized. Based on the well site location algorithm, wellbore trajectory cost function, preset drilling trajectory cost constraints, and preset wellbore trajectory constraints, the algorithm adjusts the initial well site position corresponding to the intermediate well site according to the intermediate target allocation relationship and the trajectory cost of the second target wellbore trajectories, to obtain the intermediate well site position of the intermediate well site.

[0034] It is understood that well site layout parameter optimization models can include, but are not limited to, wellbore trajectory cost functions, wellbore trajectory planning algorithms, target point allocation algorithms, and well site location algorithms. The wellbore trajectory cost function is a mathematical function that quantifies the drilling cost of a wellbore trajectory. The wellbore trajectory planning algorithm is an algorithm that generates feasible wellbore trajectories from the initial well site, through the target build-up point, to the corresponding target target point; examples include the Dubins curve algorithm and the minimum curvature method. The target point allocation algorithm is an algorithm that assigns multiple target points to different well sites; examples include integer linear optimization algorithms and genetic algorithms. The well site location algorithm is an algorithm that optimizes the well site location; examples include the Findsite algorithm and the centroid algorithm. The first target wellbore trajectory is all feasible wellbore trajectories from each initial well site to all target target points, and each first target wellbore trajectory is the one with the minimum wellbore trajectory cost among all wellbore trajectories from the initial well site through the target build-up point to the target target. The second target wellbore trajectory is a wellbore trajectory selected and combined from the optimal wellbore trajectory set obtained by filtering and combining the first target wellbore trajectories. The second target wellbore trajectory has the minimum sum of trajectory costs for all intermediate well sites. The trajectory cost is the drilling cost corresponding to a single wellbore trajectory determined by the wellbore trajectory cost function.

[0035] Specifically, the processor can determine multiple first target wellbore trajectories and trajectory costs corresponding to each first target wellbore trajectory between each initial well site and all target targets, based on the wellbore trajectory cost function, wellbore trajectory planning algorithm, preset wellbore trajectory constraints, and preset drilling trajectory cost constraints, according to the target point information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information. For example, if there are 4 initial well sites and 100 target targets, then 4*100=400 first target wellbore trajectories and 400 trajectory costs corresponding to these 400 first target wellbore trajectories are determined.

[0036] The processor can also, based on the target allocation algorithm, under the conditions of satisfying the preset well site drilling quantity constraints, preset well site quantity constraints, and preset drilling trajectory cost constraints, select the second target well site corresponding to the intermediate well site from the first target well site to each target target point from the initial well site corresponding to the initial well site corresponding to the initial well site to each target target point according to the trajectory cost corresponding to each first target well site, so as to obtain the intermediate target point allocation relationship. For example, for well sites A, B, C, and D, the processor can determine the maximum number of drillable wells for well site A as 20, for well site B as 30, for well site C as 40, and for well site D as 50 based on preset well site drilling quantity constraints. If the preset drilling trajectory cost constraint is to minimize the sum of the trajectory costs of all second target wellbore trajectories, and the preset well site quantity constraint is 3 to 9, then the processor can obtain the number of target points allocated to well site A as 10, to well site C as 40, and to well site D as 50. In this case, the number of intermediate well sites is 3, meaning that 3 intermediate well sites are selected from the first target wellbore trajectories of 4 initial well sites to 100 target points. It can be seen that the number of intermediate well sites can be equal to or unequal to the number of initial well sites.

[0037] Furthermore, the processor can also, based on the well site location algorithm, and under the condition that the well trajectory cost function, the preset drilling trajectory cost constraint, and the preset well trajectory constraint are satisfied, make slight adjustments to the initial well site position corresponding to the intermediate well site according to the intermediate target point allocation relationship and the trajectory cost of the second target well trajectory, so as to obtain the intermediate well site position of the intermediate well site that makes the total trajectory cost of all second target well trajectories decrease again.

[0038] The above technical solution, based on the wellbore trajectory cost function, wellbore trajectory planning algorithm, target point allocation algorithm, and well site location algorithm, simultaneously satisfies multiple constraints, including preset wellbore trajectory constraints, preset well site drilling quantity constraints, preset drilling trajectory cost constraints, and preset well site quantity constraints. While taking into account the actual limitations of drilling engineering, the second target wellbore trajectory obtained after screening the first target wellbore trajectory can ensure that its total trajectory cost is minimized. Furthermore, by adjusting the initial well site position corresponding to the intermediate well site, the engineering construction difficulty can be minimized to the greatest extent, and the trajectory cost can be further reduced, thus meeting the requirement of optimal well site layout.

[0039] In this embodiment, based on the wellbore trajectory cost function, wellbore trajectory planning algorithm, preset wellbore trajectory constraints, and preset drilling trajectory cost constraints, and according to the target information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information, multiple first target wellbore trajectories between each initial well site and all target points, and the trajectory cost corresponding to each first target wellbore trajectory are determined. This includes: based on the wellbore trajectory planning algorithm and preset wellbore trajectory constraints, and according to the target information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information, determining multiple candidate wellbore trajectories from each initial well site to each target point; and based on the wellbore trajectory cost function and preset drilling trajectory cost constraints, selecting the first target wellbore trajectories from each initial well site to each target point from the multiple candidate wellbore trajectories from each initial well site to each target point, and determining the trajectory cost corresponding to each first target wellbore trajectory.

[0040] It can be understood that the alternative wellbore trajectories are all feasible wellbore trajectories that meet the preset wellbore trajectory constraints from each initial well site to all target points.

[0041] Specifically, the processor can determine multiple candidate wellbore trajectories between each initial well site and each target target point, passing through the target build-up points corresponding to each target target point, based on a wellbore trajectory planning algorithm, provided that preset wellbore trajectory constraints are met. The processor can also select the first target wellbore trajectory between each initial well site and each target target point from multiple candidate wellbore trajectories based on a wellbore trajectory cost function, provided that preset drilling trajectory cost constraints are met (e.g., the wellbore trajectory cost is minimized), and determine the trajectory cost corresponding to the first target wellbore trajectory. In a specific embodiment, based on the wellbore trajectory planning algorithm and preset wellbore trajectory constraints, and according to the target information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information, it can be determined that there are 4 candidate wellbore trajectories between well site A and 1 target point. Based on the wellbore trajectory cost function and preset drilling trajectory cost constraints, the 4 trajectory costs corresponding to the 4 candidate wellbore trajectories are determined. The lowest of the 4 trajectory costs is determined, and the candidate wellbore trajectory corresponding to it is taken as the first target wellbore trajectory between well site A and the target point. The trajectory cost corresponding to the first target wellbore trajectory is also determined.

[0042] The above technical solution, through well trajectory planning algorithm combined with preset well trajectory constraints, can obtain multiple candidate well trajectory that meet engineering safety requirements, and eliminate invalid and high-risk well trajectory. Furthermore, based on the well trajectory cost function, the drilling cost of each candidate well trajectory is quantified and screened in combination with preset drilling trajectory cost constraints, which can ensure that the final output first target well trajectory not only meets engineering requirements but also has economic feasibility.

[0043] In this embodiment of the application, the trajectory cost corresponding to the first target wellbore trajectory includes: the trajectory cost corresponding to the length of the vertical section in the first target wellbore trajectory, and the trajectory cost corresponding to the length of the curved section in the first target wellbore trajectory, wherein the length of the vertical section is the trajectory length between the initial well site position and the corresponding target kick-in point in the first target wellbore trajectory, and the length of the curved section is the trajectory length between the target kick-in point and the corresponding target target point in the first target wellbore trajectory.

[0044] It can be understood that the length of the vertical well section is the length of the trajectory along the inclination angle between the initial well site position and the corresponding target build-up point in the first target wellbore trajectory. The length of the curved well section is the length of the trajectory between the target build-up point and the corresponding target point in the first target wellbore trajectory. The longer the diameter section, the higher the trajectory cost of the first target wellbore trajectory. Similarly, the longer the curved diameter section, the higher the trajectory cost of the first target wellbore trajectory.

[0045] Specifically, the trajectory cost of the first target wellbore trajectory is related to the trajectory costs of the vertical well section length and the curved well section length within the first target wellbore trajectory. Furthermore, the trajectory cost of the first target wellbore trajectory is also related to the wellbore inclination angle. The processor can perform a weighted summation of the trajectory costs corresponding to the vertical well section length and the curved well section length within the first target wellbore trajectory to determine the trajectory cost corresponding to the first target wellbore trajectory. In addition, the processor can adjust the weighting coefficients related to the trajectory costs corresponding to the diameter section length based on the wellbore inclination angle to obtain adjusted weighting coefficients. The processor can then determine the sum of the products of these adjusted weighting coefficients and the trajectory costs corresponding to the vertical well section length to obtain the vertical well section trajectory cost, and determine the curved well section trajectory cost corresponding to the curved well section length. Finally, the processor determines the sum of the vertical well section trajectory costs and the curved well section trajectory costs to obtain the trajectory cost corresponding to the first target wellbore trajectory.

[0046] The above technical solution correlates the trajectory cost of the first target wellbore trajectory with the trajectory cost corresponding to the length of the vertical section and the trajectory cost corresponding to the length of the curved section in the first target wellbore trajectory. Considering that the construction difficulty of the curved section is higher than that of the diameter section, the weighted summation segmented calculation is used to accurately determine the trajectory cost of the first target wellbore trajectory, providing a reliable trajectory cost basis for the optimization of well site layout parameters.

[0047] In this embodiment of the application, updating the initial well site information based on the intermediate well site location includes: when the distance between any number of intermediate well site locations is less than a preset distance threshold, merging multiple intermediate well site locations and updating the number of initial well sites in the initial well site information; when the distance between all intermediate well site locations is greater than or equal to the preset distance threshold, replacing the initial well site location in the initial well site information with an intermediate well site location.

[0048] It is understandable that the preset distance threshold is a pre-set distance threshold, such as 3 meters.

[0049] Specifically, the processor can determine the distance between each intermediate well site location and compare each distance with a preset distance threshold. If the distance between any number of intermediate well site locations is less than the preset distance threshold, it indicates that the intermediate well site locations are too close and can be merged into one intermediate well site. In this case, the number of initial well sites in the initial well site information needs to be updated. For example, if the distance between intermediate well site A and intermediate well site B is less than the preset distance threshold, the well site locations of intermediate well site A and intermediate well site B need to be merged to form the intermediate well site location of intermediate well site A, and the number of well sites in the initial well site information is reduced according to the number of intermediate well sites. If the distance between all intermediate well site locations is greater than or equal to the preset distance threshold, the initial well site locations in the initial well site information are directly replaced with intermediate well site locations. If the number of initial well sites corresponding to the initial well site is different from the number of intermediate well sites corresponding to the intermediate well site, the processor can also update the number of initial well sites in the initial well site information according to the number of intermediate well sites corresponding to the intermediate well site. If the number of initial well sites corresponding to the initial well site is the same as the number of intermediate well sites corresponding to the intermediate well sites, the processor does not need to update the number of initial well sites, but only needs to update the position of the initial well site corresponding to the intermediate well site to the position of the intermediate well site.

[0050] The above technical solution reduces redundant well sites by optimizing and updating well site information, thereby achieving the goal of optimizing well site layout.

[0051] In this embodiment of the application, the preset wellbore trajectory constraints include: preset curved section rotation angle constraints, preset well inclination angle constraints, and preset dogleg degree constraints.

[0052] It is understood that preset wellbore trajectory constraints may include, but are not limited to, preset curved section turning angle constraints, preset well inclination angle constraints, and preset dogleg constraint conditions. For example, a preset curved section turning angle constraint condition is that the curved section turning angle is less than 15 degrees; a preset well inclination angle constraint condition is that the well inclination angle is within the range of 0° to 30°; and a preset dogleg constraint condition is that the dogleg degree is less than or equal to 3° / 30m. Preset wellbore trajectory constraints may also include hazardous area constraints, which may include areas that affect the safety of drilling operations, such as underground faults or surface water areas.

[0053] Specifically, based on the user-given function of wellbore trajectory geometric parameters, the optimal wellbore trajectory can be solved using the aforementioned preset wellbore trajectory constraints in practical engineering.

[0054] One specific embodiment of this application provides a method for determining well site layout. Taking the development of the Yamamma oil reservoir in Iraq as an example, the development of this oil reservoir requires drilling up to 400 target points (i.e., underground target points for this oil reservoir) in the target oil reservoir area corresponding to the oil reservoir, and it is planned to use 4 to 9 well sites. Based on this, the processor can set 100 target build-up points according to 100 target points, and can set the number of initial well sites to 8, and determine the initial well site locations corresponding to the 8 initial well sites as P1 (1000, 2000, 50), P2 (3000, 2500, 50), P3 (5000, 2200, 50), P4 (2000, 4000, 50), P5 (4000, 4500, 50), P6 (6000, 4200, 50), P7 (3000, 6000, 50), P8 (5000, 6500, 50). Simultaneously, the processor can pre-set preset wellbore trajectory constraints (e.g., preset dogleg constraint, dogleg less than or equal to 3° / 30m), preset well site drilling quantity constraints (e.g., maximum drilling quantity per well site is 20), preset drilling trajectory cost constraints (e.g., minimizing drilling trajectory cost), and preset well site quantity constraints (e.g., limiting the number of well sites to 4-8). Furthermore, the processor can also set preset wellbore trajectory constraints including hazardous area constraints (setting multiple 3D coordinate points of hazardous area boundaries), preset curved section turning angle constraints (curved section turning angle less than 15 degrees), and preset well inclination angle constraints (well inclination angle within the range of 0° to 30°). Based on this, it acquires target information (target location and direction) corresponding to 100 target points, determines the build-up point information (build-up point depth) corresponding to 100 target build-up points, and the initial well site locations of 8 initial well sites. Similarly, the processor can also set a wellbore trajectory cost function. Where P is the trajectory cost of the wellbore trajectory. This represents the length of the vertical section of the wellbore trajectory. This represents the length of the curved section of the wellbore trajectory. The weighting coefficients are the values ​​corresponding to the length of the vertical well section. This is the weighting coefficient corresponding to the length of the curved section, meaning that the well trajectory cost in the well trajectory cost function is proportional to the length of the straight section and the length of the curved section in the well trajectory.

[0055] like Figure 2 As shown, the processor can be based on the wellbore trajectory cost function and wellbore trajectory planning algorithm (such as...). Figure 2 The Dubins algorithm, under the premise of satisfying preset wellbore trajectory constraints and preset drilling trajectory cost constraints, determines multiple first target wellbore trajectories and the trajectory costs corresponding to each first target wellbore trajectory based on target point information of multiple target points, build-up point information of multiple target build-up points, and initial well site information. That is, if there are 8 initial well sites and 100 target points, then 8*100=800 first target wellbore trajectories are determined, along with the 800 trajectory costs corresponding to these 800 first target wellbore trajectories (i.e.,...). Figure 2 The processor can also use a target allocation algorithm (such as...) to determine the trajectory cost of each well site-target point pair. The first target well trajectory is the well trajectory that satisfies the above constraints and has the lowest trajectory cost. Figure 2 The integer linear optimization algorithm in the model, under the premise of satisfying the preset well site drilling quantity constraints, preset well site quantity constraints, and preset drilling trajectory cost constraints, selects the second target well site corresponding to the intermediate well site from the first target well site trajectories corresponding to the initial well site corresponding to the initial well site to each target target point based on the trajectory cost corresponding to each first target well site trajectory, so as to obtain the intermediate target point allocation relationship. That is, 100 second target well site trajectories are selected from 800 first target well site trajectories, so that the sum of the trajectory costs of all second target well site trajectories (i.e., 100 second target well site trajectories) is minimized, and these 100 second target well site trajectories may only be related to the above 7 initial well sites. That is, the obtained intermediate target point allocation relationship is the correspondence between 7 intermediate well sites, 100 target build-up points, and 100 target target points. Furthermore, the processor can also be based on the well site location positioning algorithm (such as... Figure 2The Findsite algorithm in [the algorithm], while simultaneously satisfying the wellbore trajectory cost function, preset drilling trajectory cost constraints, and preset wellbore trajectory constraints, slightly adjusts the initial well site positions corresponding to the seven intermediate well sites based on the intermediate target point allocation relationship and the trajectory cost of the second target wellbore trajectory. This results in the intermediate well site position that minimizes the total trajectory cost of all second target wellbore trajectories (i.e., [the intermediate well site position]). Figure 2 (Location of the well site in the middle).

[0056] The processor can compare intermediate well site locations with their corresponding initial well site locations. If the distance between any intermediate well site location and its corresponding initial well site location does not meet the preset distance deviation range, it indicates that the initial well site location has changed, meaning the currently obtained intermediate well site layout parameters are not optimal. Iterative updates are needed, updating the initial well site information based on the intermediate well site locations and repeating the parameter acquisition and model optimization process until the distances between all intermediate well site locations and their corresponding initial well site locations meet the preset distance deviation range. At this point, the initial well site location has not changed, and there is no need for iterative updates to obtain optimal well site layout parameters. The intermediate well site layout parameters obtained at this point are used as the target well site layout parameters. If the distance between any number of intermediate well site locations is less than a preset distance threshold, it indicates that these intermediate well site locations are too close and can be merged into one intermediate well site. In this case, the initial well site count in the initial well site information needs to be updated. If the distance between all intermediate well site locations is greater than or equal to the preset distance threshold, the initial well site locations in the initial well site information are directly replaced with intermediate well site locations.

[0057] Compared to traditional optimization methods based on the operational experience of personnel, the embodiments of this application achieve cost reduction and efficiency improvement. By fully automating the processing of engineering constraint problems, the tedious process of repeatedly verifying constraints manually is avoided. Compared to manual optimization methods, it can better ensure the optimality of the solution and reduce the investment cost of well site development.

[0058] The embodiments of this application can also efficiently and automatically optimize large-scale well site layouts, and can obtain the optimal well site layout in a short time (e.g., within ten minutes). Moreover, as the scale of the well site increases, the calculation time will not increase significantly, greatly reducing the design time and manpower costs. At the same time, the target well site layout parameters obtained are better than those obtained by manual adjustment, which has great economic value for cost reduction and efficiency improvement in oil and gas field development.

[0059] This application embodiment also provides a device for determining well site layout, including: The parameter acquisition module is used to acquire target information of multiple target points in the target reservoir area, build-up point information of the target build-up points corresponding to each target point, and initial well site information. The initial well site information includes the number of initial well sites and the initial well site location. The parameter optimization module is used to determine the intermediate well site layout parameters corresponding to the target reservoir area based on the pre-constructed well site layout parameter optimization model, preset well trajectory constraints, preset well site drilling quantity constraints, preset drilling trajectory cost constraints, and preset well site quantity constraints, according to the target point information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information. The intermediate well site layout parameters include the intermediate target point allocation relationship, the intermediate well site location, and the intermediate well site quantity. The intermediate target point allocation relationship includes the correspondence between the intermediate well site, the target target point, and the target build-up point. The parameter iteration module is used to update the initial well site information based on the intermediate well site location when the distance between any intermediate well site location and the corresponding initial well site location does not meet the preset distance deviation range. The above steps are repeated until the distance between all intermediate well site locations and the corresponding initial well site locations meets the preset distance deviation range, so as to obtain the target well site layout parameters corresponding to the target reservoir area.

[0060] In this embodiment, the well site layout parameter optimization model includes a wellbore trajectory cost function, a wellbore trajectory planning algorithm, a target point allocation algorithm, and a well site location algorithm. The parameter optimization module is further used to: determine, based on the wellbore trajectory cost function, the wellbore trajectory planning algorithm, preset wellbore trajectory constraints, and preset drilling trajectory cost constraints, and according to the target point information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information, multiple first target wellbore trajectories between each initial well site and all target target points, and the trajectory cost corresponding to each first target wellbore trajectory; and based on the target point allocation algorithm, preset well site drilling quantity constraints, and preset well site number... Based on quantity constraints and preset drilling trajectory cost constraints, and according to trajectory costs, the second target wellbore trajectories corresponding to intermediate well sites are selected from the first target wellbore trajectories from the initial well sites corresponding to the initial well sites to each target point, so as to obtain the intermediate target point allocation relationship. Among them, the sum of trajectory costs of the second target wellbore trajectories corresponding to all intermediate well sites is minimized. Based on the well site location algorithm, wellbore trajectory cost function, preset drilling trajectory cost constraints, and preset wellbore trajectory constraints, the initial well site position corresponding to the intermediate well site is adjusted according to the intermediate target point allocation relationship and the trajectory cost of the second target wellbore trajectories, so as to obtain the intermediate well site position of the intermediate well site.

[0061] In this embodiment of the application, the parameter optimization module is further configured to: determine multiple candidate wellbore trajectories from each initial well site to each target target site based on the wellbore trajectory planning algorithm and preset wellbore trajectory constraints, according to the target point information of multiple target target sites, the build-up point information of multiple target build-up points, and the initial well site information; and select the first target wellbore trajectory from each initial well site to each target target site from the multiple candidate wellbore trajectories from each initial well site to each target target site based on the wellbore trajectory cost function and preset drilling trajectory cost constraints, and determine the trajectory cost corresponding to each first target wellbore trajectory.

[0062] In this embodiment of the application, the trajectory cost corresponding to the first target wellbore trajectory includes: the trajectory cost corresponding to the length of the vertical section in the first target wellbore trajectory, and the trajectory cost corresponding to the length of the curved section in the first target wellbore trajectory, wherein the length of the vertical section is the trajectory length between the initial well site position and the corresponding target kick-in point in the first target wellbore trajectory, and the length of the curved section is the trajectory length between the target kick-in point and the corresponding target target point in the first target wellbore trajectory.

[0063] In this embodiment of the application, the parameter iteration module is further configured to: merge multiple intermediate well site locations and update the number of initial well sites in the initial well site information when the distance between any number of intermediate well site locations is less than a preset distance threshold; and replace the initial well site location in the initial well site information with an intermediate well site location when the distance between all intermediate well site locations is greater than or equal to the preset distance threshold.

[0064] In this embodiment of the application, the preset wellbore trajectory constraints include: preset curved section rotation angle constraints, preset well inclination angle constraints, and preset dogleg degree constraints.

[0065] This application also provides an apparatus for determining well site layout, comprising: a memory configured to store instructions; and a processor configured to retrieve the instructions from the memory and, when executing the instructions, to implement the method for determining well site layout as described above.

[0066] This application also provides a machine-readable storage medium storing instructions for causing a machine to execute the above-described method for determining well site layout.

[0067] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the above-described method for determining well site layout.

[0068] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied 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.

[0069] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0070] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0071] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0072] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0073] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, like read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0074] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0075] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0076] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A method for determining well site layout, characterized in that, The determination method includes: Acquire target point information of multiple target points in the target reservoir area, build-up point information of the target build-up points corresponding to each target point, and initial well site information, wherein the initial well site information includes the number of initial well sites and the initial well site location of the initial well sites; Based on a pre-constructed well site layout parameter optimization model, preset wellbore trajectory constraints, preset well site drilling quantity constraints, preset drilling trajectory cost constraints, and preset well site quantity constraints, the intermediate well site layout parameters corresponding to the target reservoir area are determined according to the target point information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information. The intermediate well site layout parameters include intermediate target point allocation relationships, intermediate well site locations, and intermediate well site quantities. The intermediate target point allocation relationships include the correspondence between intermediate well sites, target points, and target build-up points. If the distance between any intermediate well site location and the corresponding initial well site location does not meet the preset distance deviation range, the initial well site information is updated based on the intermediate well site location, and the above steps are repeated until the distance between all intermediate well site locations and the corresponding initial well site locations meets the preset distance deviation range, so as to obtain the target well site layout parameters corresponding to the target reservoir area. The step of updating the initial well site information based on the intermediate well site locations includes: merging multiple intermediate well site locations and updating the initial well site number in the initial well site information when the distance between any number of intermediate well site locations is less than a preset distance threshold; and replacing the initial well site location in the initial well site information with the intermediate well site location when the distance between all intermediate well site locations is greater than or equal to the preset distance threshold.

2. The method according to claim 1, characterized in that, The well site layout parameter optimization model includes a wellbore trajectory cost function, a wellbore trajectory planning algorithm, a target point allocation algorithm, and a well site location algorithm. Based on the pre-constructed well site layout parameter optimization model, preset wellbore trajectory constraints, preset well site drilling quantity constraints, preset drilling trajectory cost constraints, and preset well site quantity constraints, and according to the target point information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information, the intermediate well site layout parameters corresponding to the target reservoir area are determined, including: Based on the wellbore trajectory cost function, the wellbore trajectory planning algorithm, the preset wellbore trajectory constraints, and the preset drilling trajectory cost constraints, according to the target point information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information, multiple first target wellbore trajectories between each initial well site and all target points and the trajectory cost corresponding to each first target wellbore trajectory are determined; Based on the target allocation algorithm, the preset well site drilling quantity constraint, the preset well site quantity constraint, and the preset drilling trajectory cost constraint, according to the trajectory cost, the second target well site corresponding to the intermediate well site is selected from the first target well site trajectory from the initial well site corresponding to the initial well site to each target target point, so as to obtain the intermediate target allocation relationship, wherein the sum of the trajectory costs of all the second target well sites corresponding to the intermediate well sites is the smallest; Based on the well site location algorithm, the wellbore trajectory cost function, the preset drilling trajectory cost constraint, and the preset wellbore trajectory constraint, the initial well site position corresponding to the intermediate well site is adjusted according to the intermediate target point allocation relationship and the trajectory cost of the second target wellbore trajectory to obtain the intermediate well site position of the intermediate well site.

3. The method according to claim 2, characterized in that, The method, based on the wellbore trajectory cost function, the wellbore trajectory planning algorithm, the preset wellbore trajectory constraints, and the preset drilling trajectory cost constraints, determines multiple first target wellbore trajectories and trajectory costs corresponding to each of the initial well sites and all the target target sites, according to the target point information of multiple target target sites, the build-up point information of multiple target build-up points, and the initial well site information. Based on the wellbore trajectory planning algorithm and the preset wellbore trajectory constraints, according to the target point information of multiple target points, the build-up point information of multiple target build-up points and the initial well site information, multiple alternative wellbore trajectories from each initial well site to each target target point are determined for each initial well site corresponding to the number of initial well sites. Based on the wellbore trajectory cost function and the preset drilling trajectory cost constraint, multiple first target wellbore trajectories between each initial well site and each target target point are selected from multiple candidate wellbore trajectories corresponding to the initial well site quantity, and the trajectory cost corresponding to each first target wellbore trajectory is determined.

4. The method according to claim 2, characterized in that, The trajectory cost corresponding to the first target wellbore trajectory includes: the trajectory cost corresponding to the length of the vertical well section in the first target wellbore trajectory, and the trajectory cost corresponding to the length of the curved well section in the first target wellbore trajectory, wherein the length of the vertical well section is the trajectory length between the initial well site position and the corresponding target kick-in point in the first target wellbore trajectory, and the length of the curved well section is the trajectory length between the target kick-in point and the corresponding target target point in the first target wellbore trajectory.

5. The method according to claim 1, characterized in that, The preset wellbore trajectory constraints include: preset curved section turning angle constraints, preset well inclination angle constraints, and preset dogleg degree constraints.

6. A device for determining well site layout, characterized in that, include: The parameter acquisition module is used to acquire target point information of multiple target points in the target reservoir area, build-up point information of the target build-up points corresponding to each target point, and initial well site information, wherein the initial well site information includes the number of initial well sites and the initial well site location of the initial well sites. The parameter optimization module is used to determine the intermediate well site layout parameters corresponding to the target reservoir area based on the pre-constructed well site layout parameter optimization model, preset well trajectory constraints, preset well site drilling quantity constraints, preset drilling trajectory cost constraints, and preset well site quantity constraints, according to the target point information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information. The intermediate well site layout parameters include intermediate target point allocation relationships, intermediate well site locations, and intermediate well site quantities. The intermediate target point allocation relationships include the correspondence between intermediate well sites, target points, and target build-up points. The parameter iteration module is used to update the initial well site information based on the intermediate well site location when the distance between any intermediate well site location and the corresponding initial well site location does not meet the preset distance deviation range, and repeat the above steps until the distance between all intermediate well site locations and the corresponding initial well site locations meets the preset distance deviation range, so as to obtain the target well site layout parameters corresponding to the target reservoir area. The parameter iteration module is further configured to: merge multiple intermediate well site locations and update the initial well site number in the initial well site information when the distance between any number of intermediate well site locations is less than a preset distance threshold; and replace the initial well site location in the initial well site information with the intermediate well site location when the distance between all intermediate well site locations is greater than or equal to the preset distance threshold.

7. The apparatus according to claim 6, characterized in that, The well site layout parameter optimization model includes a wellbore trajectory cost function, a wellbore trajectory planning algorithm, a target point allocation algorithm, and a well site location algorithm. The parameter optimization module is also used for: Based on the wellbore trajectory cost function, the wellbore trajectory planning algorithm, the preset wellbore trajectory constraints, and the preset drilling trajectory cost constraints, according to the target point information of multiple target points, the build-up point information of multiple target build-up points, and the initial well site information, multiple first target wellbore trajectories between each initial well site and all target points and the trajectory cost corresponding to each first target wellbore trajectory are determined; Based on the target allocation algorithm, the preset well site drilling quantity constraint, the preset well site quantity constraint, and the preset drilling trajectory cost constraint, according to the trajectory cost, the second target well site corresponding to the intermediate well site is selected from the first target well site trajectory from the initial well site corresponding to the initial well site to each target target point, so as to obtain the intermediate target allocation relationship, wherein the sum of the trajectory costs of all the second target well sites corresponding to the intermediate well sites is the smallest; Based on the well site location algorithm, the wellbore trajectory cost function, the preset drilling trajectory cost constraint, and the preset wellbore trajectory constraint, the initial well site position corresponding to the intermediate well site is adjusted according to the intermediate target point allocation relationship and the trajectory cost of the second target wellbore trajectory to obtain the intermediate well site position of the intermediate well site.

8. The apparatus according to claim 7, characterized in that, The parameter optimization module is also used for: Based on the wellbore trajectory planning algorithm and the preset wellbore trajectory constraints, according to the target point information of multiple target points, the build-up point information of multiple target build-up points and the initial well site information, multiple alternative wellbore trajectories from each initial well site to each target target point are determined for each initial well site corresponding to the number of initial well sites. Based on the wellbore trajectory cost function and the preset drilling trajectory cost constraint, multiple first target wellbore trajectories between each initial well site and each target target point are selected from multiple candidate wellbore trajectories corresponding to the initial well site quantity, and the trajectory cost corresponding to each first target wellbore trajectory is determined.

9. The apparatus according to claim 7, characterized in that, The trajectory cost corresponding to the first target wellbore trajectory includes: the trajectory cost corresponding to the length of the vertical well section in the first target wellbore trajectory, and the trajectory cost corresponding to the length of the curved well section in the first target wellbore trajectory, wherein the length of the vertical well section is the trajectory length between the initial well site position and the corresponding target kick-in point in the first target wellbore trajectory, and the length of the curved well section is the trajectory length between the target kick-in point and the corresponding target target point in the first target wellbore trajectory.

10. The apparatus according to claim 6, characterized in that, The preset wellbore trajectory constraints include: preset curved section turning angle constraints, preset well inclination angle constraints, and preset dogleg degree constraints.

11. A device for determining well site layout, characterized in that, include: The memory is configured to store instructions; as well as The processor is configured to retrieve the instructions from the memory and, when executing the instructions, to implement the method for determining well site layout according to any one of claims 1 to 5.

12. A machine-readable storage medium, characterized in that, The machine-readable storage medium stores instructions for causing the machine to perform the method for determining well site layout according to any one of claims 1 to 5.

13. A computer program product, comprising a computer program, characterized in that, When executed by a processor, the computer program implements the method for determining well site layout according to any one of claims 1 to 5.

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