Wellbore trajectory model establishment method, device, electronic equipment and medium

Abstract

The present application provides a method, device, electronic device and medium for establishing a wellbore trajectory model. The method includes: obtaining the position information of a first wellhead and a first target point; dividing the wellbore trajectory between the first wellhead and the first target point into different well sections, and establishing a corresponding wellbore trajectory segment model for each well section; abstracting the wellbore trajectory segment models corresponding to the different well sections through an interface and connecting them in sequence to obtain a first wellbore trajectory model between the first wellhead and the first target point. The method of the present application can connect and establish a flexible trajectory model based on a rich variety of trajectory models, which is applicable to various actual terrain and geological conditions, improves the reliability and flexibility of trajectory model establishment, and solves the problem that the current wellbore trajectory design model is difficult to adapt to various design requirements and the wellbore trajectory design is insufficiently intelligent.

Description

Technical Field

[0001] The present application relates to the field of oil and gas development drilling technology, and in particular to a method, device, electronic equipment and medium for establishing a wellbore trajectory model. Background Art

[0002] With the development of offshore, unconventional, and ultra-deep oil and gas resources, the design requirements and concepts of wellbore trajectory design in drilling engineering design have become increasingly complex in order to meet the needs of exploration, development, and engineering construction. The design difficulty and the workload of designers are constantly increasing, resulting in limited wellbore trajectory design efficiency and design quality.

[0003] At present, the design of wellbore trajectory is mainly completed through the single-wellbore mode. After obtaining the coordinates of the wellhead and target point, the design engineer first determines the wellbore design model, such as the "straight-increasing-stable" three-stage system, the "straight-increasing-stable-increasing-stable" five-stage system, as well as the stable inclination model, the two-way alignment model, the custom arc model, the horizontal tool face angle model, the natural curve model, etc. After selecting the overall design model, it is necessary to provide all the known parameters required for the design model according to the different types of models and perform multi-parameter solution calculations.

[0004] In terms of wellbore trajectory design methods, existing solutions can only use a single type of cross-sectional model. However, due to the complex geological structure, the current model is difficult to adapt to various design requirements during the actual wellbore trajectory design, optimization, and implementation process, and the wellbore trajectory design is not intelligent enough. Summary of the Invention

[0005] The present application provides a method, device, electronic equipment and medium for establishing a wellbore trajectory model, which are used to solve the problems that the current wellbore trajectory design model is difficult to adapt to various design requirements and the wellbore trajectory design is not intelligent enough.

[0006] On the one hand, the present application provides a method for establishing a wellbore trajectory model, including: obtaining position information of a first wellhead and a first target point; dividing the wellbore trajectory between the first wellhead and the first target point into different well sections, and establishing a corresponding wellbore trajectory segment model for each of the well sections; abstracting the wellbore trajectory segment models corresponding to the different well sections through an interface and connecting them in sequence to obtain a first wellbore trajectory model between the first wellhead and the first target point.

[0007] In one possible implementation, the wellbore trajectory segment model corresponding to each well section is established, including: selecting a design model and various parameters required for the design model; obtaining the starting point and end point of the well section, wherein, if the well section is the first well section, the first wellhead is used as the starting point of the well section; if the well section is not the first well section, the end point of the wellbore trajectory segment model corresponding to the previous well section of the well section is used as the starting point of the well section; if the well section is the last well section, the first target point is used as the end point of the well section; according to the actual production conditions of the first wellbore, the parameter values ​​of some parameters are determined; and, according to the quantitative relationship between the various parameters, the parameter values ​​of the remaining parameters are determined, and the nodes of the well section are calculated; through interpolation calculation, the detailed points of the well section are determined to obtain the wellbore trajectory segment model corresponding to the well section.

[0008] In a possible implementation, the method further includes: recording a first relative positional relationship between the first wellhead and the first target point, and the first wellbore trajectory model.

[0009] In one possible implementation, the method further includes: obtaining position information of a second wellhead and a second target point; determining a second relative position relationship between the second wellhead and the second target point based on the position information of the second wellhead and the second target point; selecting a target wellbore trajectory model from the currently recorded relative position relationships between each wellhead and target point and the corresponding wellbore trajectory model; the relative position relationship corresponding to the target wellbore trajectory model has the highest similarity to the second relative position relationship; and obtaining a second wellbore trajectory model between the second wellhead and the second target point based on the target wellbore trajectory model.

[0010] In one possible implementation, obtaining a second wellbore trajectory model between the second wellhead and the second target point based on the target wellbore trajectory model includes: updating the parameter values ​​of some parameters in the parameter list of each wellbore trajectory segment model in the target wellbore trajectory model based on the actual production conditions of the second wellbore; calculating the parameter values ​​of the remaining parameters in the parameter list of the target wellbore trajectory model based on the quantitative relationship between the parameters of each wellbore trajectory segment model in the target wellbore trajectory model; and updating the nodes and details of the target wellbore trajectory model based on the current parameter values ​​of the target wellbore trajectory model to obtain the second wellbore trajectory model.

[0011] On the other hand, the present application provides a wellbore trajectory model establishment device, including: an acquisition module for acquiring the position information of a first wellhead and a first target point; a first modeling module for dividing the wellbore trajectory between the first wellhead and the first target point into different well sections, and establishing a corresponding wellbore trajectory segment model for each of the well sections; a connection module for abstracting the wellbore trajectory segment models corresponding to the different well sections through an interface and connecting them in sequence to obtain the first wellbore trajectory model between the first wellhead and the first target point.

[0012] In one possible implementation, the first modeling module is specifically used to: select a design model and various parameters required for the design model; obtain the starting point and end point of the well section, wherein, if the well section is the first well section, the first wellhead is used as the starting point of the well section; if the well section is not the first well section, the end point of the wellbore trajectory section model corresponding to the previous well section of the well section is used as the starting point of the well section; if the well section is the last well section, the first target point is used as the end point of the well section; according to the actual production conditions of the first wellbore, the parameter values ​​of some parameters are determined; and, according to the quantitative relationship between the various parameters, the parameter values ​​of the remaining parameters are determined, and the nodes of the well section are calculated; through interpolation calculation, the detailed points of the well section are determined, and the wellbore trajectory section model corresponding to the well section is obtained.

[0013] In a possible implementation, the apparatus further includes: a recording module configured to record a first relative positional relationship between the first wellhead and the first target point, and the first wellbore trajectory model.

[0014] In one possible implementation, the device also includes a second modeling module, including: an acquisition unit, used to obtain the position information of the second wellhead and the second target point; a positioning unit, used to determine the second relative position relationship between the second wellhead and the second target point based on the position information of the second wellhead and the second target point; a selection unit, used to select a target wellbore trajectory model from the currently recorded relative position relationships between each wellhead and target point and the corresponding wellbore trajectory model; the relative position relationship corresponding to the target wellbore trajectory model has the highest similarity to the second relative position relationship; and a modeling unit, used to obtain the second wellbore trajectory model between the second wellhead and the second target point based on the target wellbore trajectory model.

[0015] In one possible implementation, the modeling unit is specifically used to: update the parameter values ​​of some parameters in the parameter list of each wellbore trajectory segment model in the target wellbore trajectory model according to the actual production conditions of the second wellbore; calculate the parameter values ​​of the remaining parameters in the parameter list of the target wellbore trajectory model according to the quantitative relationship between the parameters of each wellbore trajectory segment model in the target wellbore trajectory model; and update the nodes and details of the target wellbore trajectory model according to the current parameter values ​​of the target wellbore trajectory model to obtain the second wellbore trajectory model.

[0016] On the other hand, the present application provides an electronic device, comprising: a processor, and a memory communicatively connected to the processor; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory to implement the method as described above.

[0017] On the other hand, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to implement the method as described above when executed by a processor.

[0018] In the wellbore trajectory model establishment method, device, electronic device and medium provided by the present application, after determining the position information of the wellhead and the target point, the wellbore trajectory between the wellhead and the target point is divided into different well sections, and a corresponding wellbore trajectory segment model is established for each well section; through an abstract interface, each wellbore trajectory segment model is uniformly abstracted into a parameter list, realizing the continuous docking design of any trajectory design model, thereby forming an overall multi-segment wellbore trajectory model and realizing the intelligent design of a complete multi-segment wellbore trajectory. Through the above scheme, it is possible to connect and establish a flexible trajectory model based on a variety of trajectory models, which is suitable for various actual terrain and geological conditions, improves the reliability and flexibility of trajectory model establishment, and solves the problem that the use of a single profile model is difficult to adapt to various design requirements and the wellbore trajectory design is insufficiently intelligent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0020] Figure 1 Schematic diagram of the process of establishing a wellbore trajectory model provided in Example 1 of the present application is shown in FIG.

[0021] Figure 2 hereinafter is a flow chart showing a method for establishing a wellbore trajectory segment model according to the first embodiment of the present application;

[0022] Figure 3Schematic diagram of another wellbore trajectory model establishment method provided in Example 1 of the present application is shown in FIG.

[0023] Figure 4 Schematic diagram of the process of batch design of platform cluster wells provided in Example 1 of the present application is shown in FIG.

[0024] Figure 5 Schematic diagram of the structure of the wellbore trajectory model establishment device provided in Example 2 of the present application is shown in FIG.

[0025] Figure 6 Schematic diagram of the structure of the electronic device of the wellbore trajectory model establishment method provided in Example 3 of the present application is shown.

[0026] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0027] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0028] With the development of offshore, unconventional, and ultra-deep oil and gas resources, the design requirements and concepts of wellbore trajectory design in drilling engineering design have become increasingly complex in order to meet the needs of exploration, development, and engineering construction. The design difficulty and the workload of designers are constantly increasing, resulting in limited wellbore trajectory design efficiency and design quality.

[0029] At present, the design of wellbore trajectory is mainly completed through the single-wellbore mode. After obtaining the coordinates of the wellhead and target point, the design engineer first determines the wellbore design model for different well sections, such as the "straight-increasing-stable" three-stage system and the "straight-increasing-stable-increasing-stable" five-stage system. After selecting the overall design model, it is necessary to provide all the known parameters required by the design model according to the different model types and perform multi-parameter solution calculations.

[0030] In terms of wellbore trajectory design methods, existing solutions all perform parameter design and optimization based on a single fixed profile model. However, in the actual wellbore trajectory design, optimization, and implementation process, the trajectory design is very flexible, and using a single profile model is difficult to adapt to various design requirements.

[0031] The following specific embodiments are used to illustrate the technical solution of the present application. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0032] Example 1

[0033] Figure 1 This is a flow chart of a method for establishing a wellbore trajectory model provided in one embodiment of the present application. Figure 1 As shown, the wellbore trajectory model establishment method provided in this embodiment may include:

[0034] S101, obtaining position information of a first wellhead and a first target point;

[0035] S102, dividing the wellbore trajectory between the first wellhead and the first target point into different well sections, and establishing a corresponding wellbore trajectory segment model for each well section;

[0036] S103 , abstracting and sequentially connecting the wellbore trajectory segment models corresponding to the different well sections through an interface to obtain a first wellbore trajectory model between the first wellhead and the first target point.

[0037] In practical applications, the execution subject of this embodiment can be a wellbore trajectory model establishment device, which can be implemented through a computer program, such as application software, etc.; or, it can also be implemented as a medium storing relevant computer programs, such as a USB flash drive, a cloud disk, etc.; or, it can also be implemented through a physical device integrated or installed with relevant computer programs, such as a chip, a server, etc.

[0038] Specifically, after acquiring the data to be processed, the wellbore trajectory model building device first obtains the position information of the wellhead and the target point, thereby determining the relative positional relationship between the wellhead and the target point. Optional relative positional relationship parameters include, but are not limited to, closure distance, closure orientation, target front distance, and offset distance. These parameters can be selected based on actual production needs and are not restricted herein. The wellbore trajectory between the wellhead and the target point is divided into different well sections, and a corresponding wellbore trajectory segment model is established for each well section. Multiple design models can be used to implement the wellbore trajectory design, avoiding the situation where a single model is unable to meet design requirements. Finally, the wellbore trajectory segment models corresponding to each well section can be abstracted into the form of a parameter list and connected through an interface to obtain the wellbore trajectory model between the wellhead and the target point. Since the interface does not define the calculation method for each wellbore trajectory segment model, it supports the docking of wellbore trajectory segment models through starting and ending points. Based on this interface, new models can be directly embedded in the trajectory design system and can be directly and continuously docked with other existing models to jointly complete the wellbore trajectory design.

[0039] For example, when performing wellbore trajectory design, each wellbore trajectory design model (regardless of type) is abstracted to establish an abstract interface IDesignModel. The abstract interface IDesignModel contains properties and methods. Table 1 shows the main attribute members of the trajectory design model abstract interface IDesignModel provided in one embodiment of the present application. As shown in Table 1, the wellbore trajectory segment model can be abstracted as a parameter list. The attribute members of the abstract interface IDesignModel contain parameter sets of each wellbore trajectory segment model. Table 2 shows the main methods of the trajectory design model abstract interface IDesignModel provided in one embodiment of the present application. As shown in Table 2, the abstract interface IDesignModel can start calculations to implement wellbore trajectory design.

[0040] Table 1 Main attributes and members of the track design model abstract interface IDesignModel

[0041]

[0042]

[0043] Table 2 Main methods of the track design model abstract interface IDesignModel

[0044] Method Name Method Function Initialize Design model initialization Design Start design node calculation DoInterpolation Start interpolation calculation of design details

[0045] There are multiple ways to establish a corresponding wellbore trajectory segment model for each well segment. Figure 2 This is a flow chart of a method for establishing a wellbore trajectory segment model provided in one embodiment of the present application. Figure 2 As shown, in one example, S102 may specifically include:

[0046] S201, selecting a design model and various parameters required by the design model;

[0047] S202, obtaining the starting point and end point of the well section, wherein, if the well section is the first well section, the first wellhead is used as the starting point of the well section; if the well section is not the first well section, the end point of the wellbore trajectory section model corresponding to the well section before the well section is used as the starting point of the well section; if the well section is the last well section, the first target point is used as the end point of the well section;

[0048] S203, determining parameter values ​​of some parameters based on actual production conditions of the first wellbore; and determining parameter values ​​of remaining parameters based on quantitative relationships between the various parameters, and calculating the well section node;

[0049] S204: Determine the detailed points of the well section through interpolation calculation, and obtain the wellbore trajectory section model corresponding to the well section.

[0050] Specifically, a commonly used design model can be selected and applied to the wellbore trajectory segment model. These commonly used design models include, but are not limited to, the stable inclination model, the three-segment model, the two-dimensional five-segment model, the spatial five-segment model, the bidirectional alignment model, the custom arc model, the horizontal toolface angle model, and the natural curve model. For the selected design model, the required parameters are determined.

[0051] Parameters can be divided into conventional parameters and dependent parameters. Conventional parameters have fixed values. For example, a dogleg angle of 6° / 30m and a segment length of 120m are both conventional parameters. Dependent parameters are parameters that have specific relationships with other parameters, rather than fixed values. They consist of three parts: parameter name, calculation method, and dependent data object. For example, setting a node vertical depth parameter to 10m below the top depth of formation A is a dependent parameter. Its dependent data object is the top depth of formation A, and the calculation method is to subtract the vertical coordinate of the node from the vertical coordinate of the top depth of formation A. Because many parameters in the wellbore trajectory design model are strongly correlated with static parameters such as formation depth and casing shoe depth, dependent parameters can help the intelligent wellbore trajectory design system flexibly respond to changes in design conditions, achieving a higher level of intelligent wellbore trajectory design. Furthermore, the dependent parameter method preserves the relationship between individual trajectory design parameters and other drilling engineering design prerequisites within the wellbore trajectory design model. This allows for automatic recalculation and intelligent update of the trajectory design when other drilling engineering design parameters change.

[0052] After determining the required conventional and correlation parameters, the start and end points of the well section are obtained. To ensure continuity between track segments, each track segment is connected end to end. Therefore, the start point of well section 1 is the wellhead. After the design of well section 1 is completed, its end point can be used as the start point of well section 2. Similarly, the start point of well section n is the end point of well section n-1, and the end point of the last well section is the target point. Due to the needs of the actual production environment, such as the limitations of surface environmental conditions (such as mountains, lakes, ravines, farmland, and important buildings), the requirements of underground geological conditions (such as fault-blocking reservoirs, thin oil layers, and drilling in formations with large inclination angles), the need to handle downhole accidents (such as drilling for fallen objects and drilling rescue wells), and the need to improve reservoir recovery (such as drilling through multiple oil and gas layers and sidetracking old wells), the parameter values ​​of some parameters in the conventional parameter list and the correlation parameter list can be determined, and the parameter values ​​of the remaining parameters can be calculated. There are multiple calculation methods. To improve efficiency, a computer can pre-set an algorithm based on the quantitative relationships between parameters. This allows the computer to calculate the remaining parameters after entering values ​​for some parameters in the parameter list. Based on the complete parameter list, the nodes of the wellbore trajectory are calculated. Based on the design and actual drilling requirements, an interpolation interval is selected for interpolation calculations to obtain detailed wellbore trajectory points, which serve as a reference for actual production.

[0053] For example, assuming that a trajectory design is being performed for a certain well section, a three-segment design model is used. First, the coordinates of the starting point and the ending point are input, and then the calculation parameters required by the three-segment model are input (the three-segment parameters include the length of the first stable inclination section, the inclination rate, the maximum well inclination angle, and the length of the second stable inclination section, where 2 are selected from 4 as known parameters). The other two unknown parameters are calculated, and then the trajectory is interpolated based on the starting point, the ending point and other parameters to form a complete wellbore trajectory design.

[0054] Furthermore, in one example, the method may further include:

[0055] A first relative positional relationship between the first wellhead and the first target point, and the first wellbore trajectory model are recorded.

[0056] Specifically, after the design is completed, the relative positional relationship between the wellhead and the target can be retained, and the wellbore trajectory model can be exported as a design template. For example, each wellbore trajectory model obtained from the wellbore trajectory design and its corresponding relative positional relationship between the wellhead and the target can be recorded to establish a wellbore trajectory design model template library. This allows for subsequent modification and optimization based on the original design, or for use in other wellbore trajectory designs, thereby improving the scientific level of wellbore trajectory design and reducing reliance on the designer's design experience.

[0057] Furthermore, in one example, the method may further include:

[0058] Acquire location information of the second wellhead and the second target point;

[0059] determining a second relative positional relationship between the second wellhead and the second target point according to the position information of the second wellhead and the second target point;

[0060] Selecting a target wellbore trajectory model from the currently recorded relative positional relationships between each wellhead and target point and the corresponding wellbore trajectory models; the relative positional relationship corresponding to the target wellbore trajectory model has the highest similarity to the second relative positional relationship;

[0061] A second wellbore trajectory model between the second wellhead and the second target point is obtained according to the target wellbore trajectory model.

[0062] Specifically, when designing a new wellbore trajectory, the first step is to obtain the positional information of the wellhead and target, thereby determining their relative positional relationship. Because the relative positional relationship between the wellhead and target is a key factor in wellbore trajectory design, a design template with the closest relative positional relationship between the wellhead and target can be selected from the wellbore trajectory design model library as a reference. Based on this, the wellbore trajectory design model for the new wellbore is calculated, improving wellbore trajectory design efficiency and conserving resources.

[0063] There are multiple ways to obtain the second wellbore trajectory model between the second wellhead and the second target point based on the target wellbore trajectory model. Figure 3 A flow chart of another method for establishing a wellbore trajectory model provided in one embodiment of the present application is shown as follows: Figure 3 As shown, in one example, this solution may further include:

[0064] S301, obtaining position information of a second wellhead and a second target point;

[0065] S302, determining a second relative positional relationship between the second wellhead and the second target point based on the position information of the second wellhead and the second target point;

[0066] S303, selecting a target wellbore trajectory model from the currently recorded relative positional relationships between each wellhead and target point and the corresponding wellbore trajectory models; the relative positional relationship corresponding to the target wellbore trajectory model has the highest similarity to the second relative positional relationship;

[0067] S304, updating parameter values ​​of some parameters in the parameter list of each wellbore trajectory segment model in the target wellbore trajectory model according to the actual production conditions of the second wellbore;

[0068] S305, calculating parameter values ​​of remaining parameters in the parameter list of the target wellbore trajectory model according to the quantitative relationship between the parameters of each wellbore trajectory segment model in the target wellbore trajectory model;

[0069] S306 , updating the nodes and details of the target wellbore trajectory model according to the current parameter values ​​of the target wellbore trajectory model to obtain the second wellbore trajectory model.

[0070] Specifically, after determining the design template based on the relative position of the wellhead and the target, the values ​​of some parameters in the design template's parameter list are redefined based on the actual production conditions of the new wellbore, and the values ​​of the remaining parameters are calculated. There are multiple calculation methods, which are not detailed here. After obtaining the updated parameter list, the nodes of the new wellbore trajectory are calculated, and the interpolation spacing is selected to calculate the detailed points of the new wellbore trajectory.

[0071] For example, it is assumed that a trajectory design is currently being performed for a reference well WB-1, where the wellhead coordinate O and the horizontal well target area (target area start point A, target area end point B) are given.

[0072] Step 1: Create a stable inclination design for the target (well section 1) first, input the section length as 1400m, and the calculation is successful.

[0073] Step 2: Starting from the end point of Step 1, create a custom single-arc design model (well section 2). Input parameters are well inclination angle 14.68°, azimuth angle 109.15°, and dogleg angle 2.5° / 30m. The calculation is successful.

[0074] Step 3: Starting from the end point of step 2, create a stable inclination design model (well section 3), input the section length as 220m, and the calculation is successful.

[0075] Step 4: Take the end point of step 3 as the starting point, select target A as the end point, and the line connecting target A and target B as the target entry direction. Create a bidirectional alignment model with the input parameters of double arc dogleg angles of 2.58° / 30m and 7.00° / 30m. The calculation is successful.

[0076] Step 5: With the end point of step 4 (i.e., target point A) as the starting point and target point B as the end point, a constant tool face continuous target model is created. No parameters need to be input. The calculation is passed and the trajectory design is completed, as shown in Table 3. Table 3 is the design results of the reference well WB-1 provided in an embodiment of the present application.

[0077] Table 3 Design results of reference well WB-1

[0078]

[0079]

[0080] Step 6: Export the above-mentioned wellbore trajectory into a template text using the IDesignModel interface for use in other wellbore trajectory designs, as shown in Table 4. Table 4 is the export result of the WB-1 design template provided in an embodiment of the present application.

[0081] Table 4 Design results of reference well WB-1

[0082]

[0083] Step 7: Design a new horizontal well WB-2 of the same type in the same block / platform: given the wellhead coordinates O2, the target area starting point A2, and the target area end point B2.

[0084] Step 8: Import the design template generated in step 6. The template requires two targets, so the targets are specified as A2 and B2. After importing the template, the design of the entire wellbore trajectory is automatically completed, as shown in Table 5. Table 5 is the design results of the horizontal well WB-2 provided in one embodiment of the present application.

[0085] Table 5 Design results of horizontal well WB-2

[0086]

[0087]

[0088] On the basis of realizing the intelligent design of single well trajectory, batch design of platform cluster wells can be further realized. Figure 4 A schematic diagram of a batch design process for platform cluster wells provided in an embodiment of the present application is shown in FIG. Figure 4 As shown in the figure, a trajectory design template library is first established for the block and stored in the system database. After obtaining cluster well targets from the geological design unit, the platform wellhead design is determined based on the actual situation (number of wellheads > number of target areas). Based on the coordinate positions of the platform and wellhead, the pairing relationship between the wellhead and the target is determined, and a wellhead-target correspondence list is established. For each pair of wellhead and target in this list, the aforementioned wellbore trajectory design method is applied to complete the platform batch drilling wellbore trajectory design, supporting the implementation of templated block design.

[0089] In the wellbore trajectory model establishment method provided in this embodiment, after determining the position information of the wellhead and the target point, the wellbore trajectory between the wellhead and the target point is divided into different well sections, and a corresponding wellbore trajectory segment model is established for each well section, so that the design model can be flexibly selected according to production needs; through the abstract interface, each wellbore trajectory segment model is uniformly abstracted into a parameter list, realizing the continuous docking design of any trajectory design model, thereby forming an overall multi-segment wellbore trajectory model and realizing the intelligent design of a complete multi-segment wellbore trajectory. Through the above scheme, it is possible to connect and establish a flexible trajectory model based on a variety of trajectory models, which is suitable for various actual terrain and geological conditions, improves the reliability and flexibility of trajectory model establishment, and solves the problem that the use of a single profile model is difficult to adapt to various design requirements and the wellbore trajectory design is insufficiently intelligent.

[0090] Example 2

[0091] Figure 5 This is a schematic diagram of the structure of the wellbore trajectory model building device provided in one embodiment of the present application. Figure 5 As shown, the wellbore trajectory model establishment device provided in this embodiment may include:

[0092] An acquisition module 51 is used to acquire position information of a first wellhead and a first target point;

[0093] A first modeling module 52 is configured to divide the wellbore trajectory between the first wellhead and the first target point into different well sections, and to establish a corresponding wellbore trajectory segment model for each well section;

[0094] The connection module 53 is used to abstract the wellbore trajectory segment models corresponding to the different well sections through an interface and connect them in sequence to obtain a first wellbore trajectory model between the first wellhead and the first target point.

[0095] In practical applications, the wellbore trajectory model building device can be implemented through a computer program, such as application software, etc.; or, it can be implemented as a medium storing relevant computer programs, such as a USB flash drive, a cloud disk, etc.; or, it can be implemented through a physical device integrated or installed with relevant computer programs, such as a chip, a server, etc.

[0096] Specifically, after acquiring the data to be processed, the wellbore trajectory model building device first obtains the position information of the wellhead and the target point, thereby determining the relative positional relationship between the wellhead and the target point. Optional relative positional relationship parameters include, but are not limited to, closure distance, closure orientation, target front distance, and offset distance. These parameters can be selected based on actual production needs and are not restricted herein. The wellbore trajectory between the wellhead and the target point is divided into different well sections, and a corresponding wellbore trajectory segment model is established for each well section. Multiple design models can be used to implement the wellbore trajectory design, avoiding the situation where a single model is unable to meet design requirements. Finally, the wellbore trajectory segment models corresponding to each well section can be abstracted into the form of a parameter list and connected through an interface to obtain the wellbore trajectory model between the wellhead and the target point. Since the interface does not define the calculation method for each wellbore trajectory segment model, it supports the docking of wellbore trajectory segment models through starting and ending points. Based on this interface, new models can be directly embedded in the trajectory design system and can be directly and continuously docked with other existing models to jointly complete the wellbore trajectory design.

[0097] There are many ways to establish a corresponding wellbore trajectory segment model for each well segment. In one example, the first modeling module 52 can be specifically used to:

[0098] Selecting a design model and various parameters required for the design model;

[0099] Obtain the starting point and end point of the well section, wherein, if the well section is the first well section, the first wellhead is used as the starting point of the well section; if the well section is not the first well section, the end point of the wellbore trajectory section model corresponding to the previous well section is used as the starting point of the well section; if the well section is the last well section, the first target point is used as the end point of the well section;

[0100] Determining parameter values ​​of some parameters based on actual production conditions of the first wellbore; and determining parameter values ​​of remaining parameters based on quantitative relationships between the various parameters, and calculating the well section node;

[0101] Through interpolation calculation, the detailed points of the well section are determined and the wellbore trajectory section model corresponding to the well section is obtained.

[0102] Specifically, a commonly used design model can be selected and applied to the wellbore trajectory segment model. These commonly used design models include, but are not limited to, the stable inclination model, the three-segment model, the two-dimensional five-segment model, the spatial five-segment model, the bidirectional alignment model, the custom arc model, the horizontal toolface angle model, and the natural curve model. For the selected design model, the required parameters are determined.

[0103] Parameters can be divided into conventional parameters and dependent parameters. Conventional parameters have fixed values. For example, a dogleg angle of 6° / 30m and a segment length of 120m are both conventional parameters. Dependent parameters are parameters that have specific relationships with other parameters, rather than fixed values. They consist of three parts: parameter name, calculation method, and dependent data object. For example, setting a node vertical depth parameter to 10m below the top depth of formation A is a dependent parameter. Its dependent data object is the top depth of formation A, and the calculation method is to subtract the vertical coordinate of the node from the vertical coordinate of the top depth of formation A. Because many parameters in the wellbore trajectory design model are strongly correlated with static parameters such as formation depth and casing shoe depth, dependent parameters can help the intelligent wellbore trajectory design system flexibly respond to changes in design conditions, achieving a higher level of intelligent wellbore trajectory design. Furthermore, the dependent parameter method preserves the relationship between individual trajectory design parameters and other drilling engineering design prerequisites within the wellbore trajectory design model. This allows for automatic recalculation and intelligent update of the trajectory design when other drilling engineering design parameters change.

[0104] After determining the required conventional and correlation parameters, the start and end points of the well section are obtained. To ensure continuity between track segments, each track segment is connected end to end. Therefore, the start point of well section 1 is the wellhead. After the design of well section 1 is completed, its end point can be used as the start point of well section 2. Similarly, the start point of well section n is the end point of well section n-1, and the end point of the last well section is the target point. Due to the needs of the actual production environment, such as the limitations of surface environmental conditions (such as mountains, lakes, ravines, farmland, and important buildings), the requirements of underground geological conditions (such as fault-blocking reservoirs, thin oil layers, and drilling in formations with large inclination angles), the need to handle downhole accidents (such as drilling for fallen objects and drilling rescue wells), and the need to improve reservoir recovery (such as drilling through multiple oil and gas layers and sidetracking old wells), the parameter values ​​of some parameters in the conventional parameter list and the correlation parameter list can be determined, and the parameter values ​​of the remaining parameters can be calculated. There are multiple calculation methods. To improve efficiency, a computer can pre-set an algorithm based on the quantitative relationships between parameters. This allows the computer to calculate the remaining parameters after entering values ​​for some parameters in the parameter list. Based on the complete parameter list, the nodes of the wellbore trajectory are calculated. Based on the design and actual drilling requirements, an interpolation interval is selected for interpolation calculations to obtain detailed wellbore trajectory points, which serve as a reference for actual production.

[0105] Furthermore, in one example, the apparatus may further include a recording module, which may be specifically configured to:

[0106] A first relative positional relationship between the first wellhead and the first target point, and the first wellbore trajectory model are recorded.

[0107] Specifically, after the design is completed, the relative positional relationship between the wellhead and the target can be retained, and the wellbore trajectory model can be exported as a design template. For example, each wellbore trajectory model obtained from the wellbore trajectory design and its corresponding relative positional relationship between the wellhead and the target can be recorded to establish a wellbore trajectory design model template library. This allows for subsequent modification and optimization based on the original design, or for use in other wellbore trajectory designs, thereby improving the scientific level of wellbore trajectory design and reducing reliance on the designer's design experience.

[0108] Furthermore, in one example, the apparatus may further include a second modeling module, including:

[0109] An acquisition unit, configured to acquire position information of a second wellhead and a second target point;

[0110] a positioning unit, configured to determine a second relative positional relationship between the second wellhead and the second target point based on position information of the second wellhead and the second target point;

[0111] a selection unit configured to select a target wellbore trajectory model from the currently recorded relative positional relationships between the wellheads and the target points and the corresponding wellbore trajectory models; wherein the relative positional relationship corresponding to the target wellbore trajectory model has the highest similarity to the second relative positional relationship;

[0112] A modeling unit is used to obtain a second wellbore trajectory model between the second wellhead and the second target point according to the target wellbore trajectory model.

[0113] Specifically, when designing a new wellbore trajectory, the first step is to obtain the positional information of the wellhead and target, thereby determining their relative positional relationship. Because the relative positional relationship between the wellhead and target is a key factor in wellbore trajectory design, a design template with the closest relative positional relationship between the wellhead and target can be selected from the wellbore trajectory design model template library as a reference. This template can then be used to develop a wellbore trajectory design model for the new wellbore, improving wellbore trajectory design efficiency and conserving resources.

[0114] There are multiple ways to obtain the second wellbore trajectory model between the second wellhead and the second target point based on the target wellbore trajectory model. In one example, the modeling unit can also be used to:

[0115] updating parameter values ​​of some parameters in a parameter list of each wellbore trajectory segment model in the target wellbore trajectory model according to actual production conditions of the second wellbore;

[0116] Calculating parameter values ​​of remaining parameters in the parameter list of the target wellbore trajectory model according to the quantitative relationship between the parameters of each wellbore trajectory segment model in the target wellbore trajectory model;

[0117] According to the current parameter values ​​of the target wellbore trajectory model, the nodes and detailed points of the target wellbore trajectory model are updated to obtain the second wellbore trajectory model.

[0118] Specifically, after determining the design template based on the relative position of the wellhead and the target, the values ​​of some parameters in the design template's parameter list are redefined based on the actual production conditions of the new wellbore, and the values ​​of the remaining parameters are calculated. There are multiple calculation methods, which are not detailed here. After obtaining the updated parameter list, the nodes of the new wellbore trajectory are calculated, and the interpolation spacing is selected to calculate the detailed points of the new wellbore trajectory.

[0119] Building on the intelligent design of single-well borehole trajectories, batch design for platform cluster wells can be further implemented. After obtaining cluster well target areas from the geological design unit, the platform wellhead design is determined based on actual conditions (number of wellheads > number of target areas). Based on the coordinate positions of the platform and wellhead, the pairing relationship between the wellhead and target is determined, and a wellhead-target correspondence list is established. For each wellhead and target pair in this list, the aforementioned wellbore trajectory design method is applied to complete the platform batch drilling wellbore trajectory design, supporting the implementation of block template design.

[0120] In the wellbore trajectory model establishment device provided by this embodiment, after determining the position information of the wellhead and the target point, the wellbore trajectory between the wellhead and the target point is divided into different well sections, and a corresponding wellbore trajectory segment model is established for each well section, so that the design model can be flexibly selected according to production needs; through an abstract interface, each wellbore trajectory segment model is uniformly abstracted into a parameter list, realizing the continuous docking design of any trajectory design model, thereby forming an overall multi-segment wellbore trajectory model. Through the above scheme, it is possible to connect and establish a flexible trajectory model based on a rich type of trajectory model, which is suitable for various actual terrain and geological conditions, improves the reliability and flexibility of trajectory model establishment, and realizes the intelligent design of a complete multi-segment wellbore trajectory, solving the problem that the use of a single profile model is difficult to adapt to various design requirements and the wellbore trajectory design is insufficiently intelligent.

[0121] Example 3

[0122] Figure 6 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present disclosure, such as Figure 6 As shown, the electronic device includes:

[0123] The electronic device includes a processor 291 and a memory 292; a communication interface 293, and a bus 294. The processor 291, memory 292, and communication interface 293 can communicate with each other via bus 294. Communication interface 293 can be used for information transmission. The processor 291 can invoke logic instructions in memory 292 to execute the methods of the above embodiments.

[0124] In addition, the logic instructions in the memory 292 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0125] Memory 292, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of the present disclosure. Processor 291 executes the software programs, instructions, and modules stored in memory 292 to perform functional applications and data processing, thereby implementing the methods in the above-mentioned method embodiments.

[0126] Memory 292 may include a program storage area and a data storage area. The program storage area may store an operating system and at least one application required for a function; the data storage area may store data generated based on the use of the terminal device. Memory 292 may also include high-speed random access memory and non-volatile memory.

[0127] An embodiment of the present disclosure provides a non-transitory computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions. When the computer-executable instructions are executed by a processor, they are used to implement the method described in the above embodiment.

[0128] Example 4

[0129] An embodiment of the present disclosure provides a computer program product, including a computer program. When the computer program is executed by a processor, the method provided in any of the above embodiments of the present disclosure is implemented.

[0130] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of the present application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0131] It should be understood that the present application is not limited to the exact structure described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A method for establishing a wellbore trajectory model, characterized in that: include: Obtaining location information of a first wellhead and a first target point; The wellbore trajectory between the first wellhead and the first target point is divided into different well sections, and a corresponding wellbore trajectory segment model is established for each well section; wherein, the establishment of the corresponding wellbore trajectory segment model for each well section includes: selecting a design model and various parameters required for the design model; obtaining the starting point and end point of the well section, wherein, if the well section is the first well section, the first wellhead is used as the starting point of the well section; if the well section is not the first well section, the end point of the wellbore trajectory segment model corresponding to the previous well section of the well section is used as the starting point of the well section; if the well section is the last well section, the first target point is used as the end point of the well section; according to the actual production conditions of the first wellbore, the parameter values ​​of some parameters are determined; and according to the quantitative relationship between the various parameters, the parameter values ​​of the remaining parameters are determined, and the nodes of the well section are calculated; through interpolation calculation, the detailed points of the well section are determined, and the wellbore trajectory segment model corresponding to the well section is obtained; The wellbore trajectory segment models corresponding to the different well sections are abstracted and sequentially connected through an interface to obtain a first wellbore trajectory model between the first wellhead and the first target point.

2. The method according to claim 1, characterized in that The method further comprises: A first relative positional relationship between the first wellhead and the first target point, and the first wellbore trajectory model are recorded.

3. The method according to claim 2, characterized in that The method further comprises: Acquire location information of the second wellhead and the second target point; determining a second relative positional relationship between the second wellhead and the second target point according to the position information of the second wellhead and the second target point; Selecting a target wellbore trajectory model from the currently recorded relative positional relationships between each wellhead and target point and the corresponding wellbore trajectory models; the relative positional relationship corresponding to the target wellbore trajectory model has the highest similarity to the second relative positional relationship; A second wellbore trajectory model between the second wellhead and the second target point is obtained according to the target wellbore trajectory model.

4. The method according to claim 3, characterized in that The step of obtaining a second wellbore trajectory model between the second wellhead and the second target point according to the target wellbore trajectory model includes: updating parameter values ​​of some parameters in a parameter list of each wellbore trajectory segment model in the target wellbore trajectory model according to actual production conditions of the second wellbore; Calculating parameter values ​​of remaining parameters in the parameter list of the target wellbore trajectory model according to the quantitative relationship between the parameters of each wellbore trajectory segment model in the target wellbore trajectory model; According to the current parameter values ​​of the target wellbore trajectory model, the nodes and detailed points of the target wellbore trajectory model are updated to obtain the second wellbore trajectory model.

5. A wellbore trajectory model building device, characterized in that: include: An acquisition module, used for acquiring position information of a first wellhead and a first target point; The first modeling module is used to divide the wellbore trajectory between the first wellhead and the first target point into different well sections, and establish a corresponding wellbore trajectory segment model for each well section; wherein, the establishment of the corresponding wellbore trajectory segment model for each well section includes: selecting a design model and various parameters required for the design model; obtaining the starting point and end point of the well section, wherein, if the well section is the first well section, the first wellhead is used as the starting point of the well section; if the well section is not the first well section, the end point of the wellbore trajectory segment model corresponding to the previous well section of the well section is used as the starting point of the well section; if the well section is the last well section, the first target point is used as the end point of the well section; according to the actual production conditions of the first wellbore, the parameter values ​​of some parameters are determined; and according to the quantitative relationship between the various parameters, the parameter values ​​of the remaining parameters are determined, and the nodes of the well section are calculated; through interpolation calculation, the detailed points of the well section are determined, and the wellbore trajectory segment model corresponding to the well section is obtained; The connection module is used to abstract the wellbore trajectory segment models corresponding to the different well sections through an interface and connect them in sequence to obtain a first wellbore trajectory model between the first wellhead and the first target point.

6. The device according to claim 5, characterized in that The device further comprises: A recording module is used to record a first relative position relationship between the first wellhead and the first target point, and the first wellbore trajectory model.

7. The device according to claim 6, characterized in that The apparatus further includes a second modeling module, comprising: An acquisition unit, configured to acquire position information of a second wellhead and a second target point; a positioning unit, configured to determine a second relative positional relationship between the second wellhead and the second target point based on position information of the second wellhead and the second target point; a selection unit configured to select a target wellbore trajectory model from the currently recorded relative positional relationships between the wellheads and the target points and the corresponding wellbore trajectory models; wherein the relative positional relationship corresponding to the target wellbore trajectory model has the highest similarity to the second relative positional relationship; A modeling unit is used to obtain a second wellbore trajectory model between the second wellhead and the second target point according to the target wellbore trajectory model.

8. The device according to claim 7, characterized in that The modeling unit is specifically used to: According to the actual production conditions of the second wellbore, the parameter values ​​of some parameters in the parameter list of each wellbore trajectory segment model in the target wellbore trajectory model are updated; according to the quantitative relationship between the parameters of each wellbore trajectory segment model in the target wellbore trajectory model, the parameter values ​​of the remaining parameters in the parameter list of the target wellbore trajectory model are calculated; according to the current parameter values ​​of the target wellbore trajectory model, the nodes and detailed points of the target wellbore trajectory model are updated to obtain the second wellbore trajectory model.

9. An electronic device, characterized in that: include: a processor, and a memory communicatively connected to the processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the method according to any one of claims 1 to 4.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to any one of claims 1 to 4 when executed by a processor.

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