A method and apparatus for correcting wellbore trajectory parameters

Abstract

The method comprises the following steps: acquiring wellbore trajectory control data of a wellbore trajectory section to be corrected; determining a measuring point in the wellbore trajectory section to be corrected and wellbore trajectory measurement data corresponding to each measuring point; for each measuring point to be corrected, calculating wellbore trajectory calculation data of the measuring point to be corrected and wellbore trajectory calculation data of a drill bit position corresponding to the measuring point to be corrected by using a curvature radius method; calculating a deviation angle between the wellbore trajectory calculation data of the measuring point to be corrected and a well inclination angle and a position angle at a position corresponding to the measuring point to be corrected on a bottom hole assembly axis according to drilling parameters, a drill string assembly parameter and the wellbore trajectory calculation data of the drill bit position corresponding to the measuring point to be corrected; and obtaining corrected wellbore trajectory data according to the deviation angle and the wellbore trajectory measurement data corresponding to the measuring point to be corrected.

Description

Technical Field

[0001] This article relates to the field of oil and gas field development technology, and in particular to a method and device for correcting wellbore trajectory parameters. Background Technology

[0002] With the continuous and in-depth development of unconventional oil and gas resources and the increasing application of various complex well structures, the requirements for wellbore trajectory control are constantly increasing. For example, the in-situ conversion of shale oil utilizes densely spaced horizontal well clusters, significantly increasing the accuracy requirements for directional wellbore trajectory control and posing a major challenge to existing conventional directional drilling wellbore trajectory control methods. During oil and gas drilling operations, wireless Measurement While Drilling (MWD) tools are typically used to measure and transmit wellbore position parameters to control the trajectory. Position parameters include well depth, inclination angle, and azimuth angle. However, current wellbore trajectory parameter measurements assume that the measurement tool's axis coincides with the bottom hole assembly (BHA) axis and is aligned with the wellbore axis, neglecting the influence of other environmental parameters. In reality, the BHA undergoes spatial deformation within the wellbore, and its axis may not align with the wellbore axis. This results in the measurement results from the MWD tool within the BHA not accurately reflecting the actual wellbore trajectory characteristics, failing to meet the requirements for high-precision wellbore trajectory control.

[0003] Therefore, how to implement a method for correcting wellbore trajectory parameters, which can correct the measured wellbore trajectory parameters by calculating the deviation angle, and obtain more scientific and accurate wellbore trajectory data, is an urgent problem to be solved. Summary of the Invention

[0004] This application provides a method and apparatus for correcting wellbore trajectory parameters. The method first calculates the deviation angle between the bottom drill string assembly axis and the wellbore axis, and then uses the deviation angle to correct the measured wellbore trajectory parameters. Through this correction method, more scientific and accurate wellbore trajectory data can be obtained.

[0005] Firstly, this application provides a method for correcting wellbore trajectory parameters, the method comprising:

[0006] Acquire wellbore trajectory control data for the wellbore trajectory measurement segment to be corrected; wherein, the wellbore trajectory control data includes wellbore trajectory measurement data, drill string assembly parameters, and drilling parameters;

[0007] Determine multiple measurement points within the well trajectory measurement segment to be corrected and the corresponding well trajectory measurement data for each measurement point to be corrected;

[0008] For each measuring point to be corrected, the radius of curvature method is used to calculate the wellbore trajectory calculation data of the measuring point to be corrected and the wellbore trajectory calculation data of the corresponding drill bit position of the measuring point to be corrected;

[0009] Based on the spatial deformation of the bottom drill string assembly and the wellbore trajectory calculation data of the corresponding drill bit position of the measuring point to be corrected, calculate the well inclination angle and azimuth angle on the axis of the bottom drill string assembly at the corresponding position of the measuring point to be corrected.

[0010] The deviation angle between the wellbore trajectory calculation data of the measuring point to be corrected and the well inclination angle and azimuth angle at the corresponding position of the measuring point to be corrected on the bottom drill string assembly axis are determined.

[0011] The corrected wellbore trajectory data is obtained based on the deviation angle and the corresponding wellbore trajectory measurement data of the measuring point to be corrected.

[0012] Secondly, embodiments of the present invention also provide a wellbore trajectory parameter correction device, the device comprising: a memory and a processor; the memory is used to store a wellbore trajectory parameter correction program, and the processor is used to read and execute the program for the wellbore trajectory parameter correction method, and execute the method described in any of the above embodiments.

[0013] Thirdly, embodiments of the present invention also provide a computer-readable storage medium storing a data processing program, wherein the data processing program is executed by a processor using the wellbore trajectory parameter correction method described in any of the above embodiments.

[0014] Compared with related technologies, this application provides a method and apparatus for correcting wellbore trajectory parameters. The method includes: acquiring wellbore trajectory control data of a wellbore trajectory measurement segment to be corrected; wherein the wellbore trajectory control data includes wellbore trajectory measurement data, drill string assembly parameters, and drilling parameters; determining multiple measurement points to be corrected within the wellbore trajectory measurement segment to be corrected and the corresponding wellbore trajectory measurement data for each measurement point to be corrected; and for each measurement point to be corrected, calculating the wellbore trajectory calculation data and the measurement point to be corrected using the radius of curvature method. The wellbore trajectory is calculated based on the drill bit position. The inclination angle and azimuth angle on the bottom drill string assembly axis at the corresponding position of the measuring point to be corrected are calculated based on the bottom drill string assembly spatial deformation and the wellbore trajectory calculation data. The deviation angle between the two is determined based on the wellbore trajectory calculation data of the measuring point to be corrected and the inclination angle and azimuth angle on the bottom drill string assembly axis at the corresponding position of the measuring point to be corrected. The corrected wellbore trajectory data is obtained based on the deviation angle and the corresponding wellbore trajectory measurement data of the measuring point to be corrected. This application calculates the deviation angle between the bottom drill string assembly axis and the wellbore axis, and uses this deviation angle to correct the measured wellbore trajectory parameters, thus obtaining more scientific and accurate wellbore trajectory data.

[0015] Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the application. Other advantages of this application can be realized and obtained by means of the solutions described in the description and the accompanying drawings. Attached Figure Description

[0016] The accompanying drawings are used to provide an understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0017] Figure 1 This is a flowchart of a wellbore trajectory parameter correction method according to an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of a wellbore trajectory parameter correction device according to an embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the wellbore axis in some exemplary embodiments;

[0020] Figure 4 This is a schematic diagram of the wellbore axis inclination angle and the corrected wellbore inclination angle in some exemplary embodiments;

[0021] Figure 5 This is a schematic diagram of the azimuth angle of the target well section axis and the corrected azimuth angle in some exemplary embodiments;

[0022] Figure 6 This is a schematic diagram illustrating the selection of the starting point in some exemplary embodiments;

[0023] Figure 7 This is a schematic diagram illustrating the spatial characteristics of the wellbore trajectory axis and the BHA axis in some exemplary embodiments;

[0024] Figure 8 This is a schematic diagram of the projection of the wellbore trajectory axis and the BHA axis onto the well inclination plane and azimuth plane in some exemplary embodiments;

[0025] Figure 9 This is a schematic diagram of the spatial deviation angle between the wellbore trajectory axis and the BHA axis in some exemplary embodiments;

[0026] Figure 10 This is a schematic diagram illustrating the deviation of the wellbore trajectory axis from the BHA axis in some exemplary embodiments;

[0027] Figure 11 This is a schematic diagram illustrating the azimuth deviation between the wellbore trajectory axis and the BHA axis in some exemplary embodiments;

[0028] Figure 12 This is a schematic diagram of well inclination angle correction in some exemplary embodiments;

[0029] Figure 13 This is a schematic diagram of azimuth angle correction for some exemplary embodiments;

[0030] Figure 14 This is a schematic diagram of the three-dimensional wellbore trajectory correction results in some exemplary embodiments. Detailed Implementation

[0031] This application describes several embodiments, but these descriptions are exemplary and not restrictive, and it will be apparent to those skilled in the art that many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with, or may replace, any feature or element of any other embodiment.

[0032] This application includes and contemplates combinations of features and elements known to those skilled in the art. The embodiments, features, and elements disclosed in this application may also be combined with any conventional features or elements to form a unique inventive scheme as defined by the claims. Any feature or element of any embodiment may also be combined with features or elements from other inventive schemes to form another unique inventive scheme as defined by the claims. Therefore, it should be understood that any feature shown and / or discussed in this application may be implemented individually or in any suitable combination. Therefore, the embodiments are not limited except by the limitations imposed by the appended claims and their equivalents. Furthermore, various modifications and changes may be made within the scope of the appended claims.

[0033] Furthermore, in describing representative embodiments, the specification may have presented methods and / or processes as a specific sequence of steps. However, the method or process should not be limited to the specific order of steps described herein, to the extent that it does not depend on such a specific order. As will be understood by those skilled in the art, other sequences of steps are also possible. Therefore, the specific order of steps set forth in the specification should not be construed as a limitation of the claims. Moreover, the claims concerning the method and / or process should not be limited to the steps performed in the written order, and those skilled in the art will readily understand that these orders can be varied and still remain within the spirit and scope of the embodiments of this application.

[0034] This invention provides a method for correcting wellbore trajectory parameters, such as... Figure 1 As shown, the method includes steps S1-S6:

[0035] S1: Obtain wellbore trajectory control data for the wellbore trajectory measurement segment to be corrected; wherein, the wellbore trajectory control data includes wellbore trajectory measurement data, drill string assembly parameters, and drilling parameters;

[0036] S2: Determine multiple measurement points to be corrected within the well trajectory measurement segment to be corrected and the corresponding well trajectory measurement data for each measurement point to be corrected;

[0037] S3: For each measuring point to be corrected, the wellbore trajectory calculation data of the measuring point to be corrected and the wellbore trajectory calculation data of the corresponding drill bit position of the measuring point to be corrected are calculated using the radius of curvature method.

[0038] S4: Calculate the inclination angle and azimuth angle on the bottom drill string assembly axis at the corresponding position of the measuring point to be corrected, based on the bottom drill string assembly parameters, drilling parameters, and wellbore trajectory calculation data of the corresponding drill bit position of the measuring point to be corrected.

[0039] S5: Determine the deviation angle between the wellbore trajectory calculation data of the measuring point to be corrected and the well inclination angle and azimuth angle at the corresponding position of the measuring point to be corrected on the bottom drill string assembly axis;

[0040] S6: Obtain the corrected wellbore trajectory data based on the deviation angle and the corresponding wellbore trajectory measurement data of the measuring point to be corrected.

[0041] In this embodiment, it can be applied to situations where the bottom drill string assembly undergoes spatial deformation during the drilling process, causing the axis of the bottom drill string assembly to deviate from the wellbore axis, and the resulting deviation is corrected.

[0042] The wellbore trajectory measurement section refers to a well section during drilling, with the current bottom drill bit position as the lower end and a predetermined distance above the drill bit as the upper end. This application's embodiments do not limit this definition. The wellbore trajectory parameters for each measurement point within the target well section include data such as well depth, inclination angle, and azimuth angle.

[0043] Among them, the drill string assembly refers to the drill string structure formed by connecting components such as drill bit, drill collar, weighted drill pipe, drill pipe, stabilizer, shock absorber, shock absorber, downhole power tools, measurement and logging tools, etc. in a specific order and manner according to the needs of wellbore trajectory control, drilling pressure transmission, anti-deviation and stabilization of deviation during the drilling process.

[0044] A bottom hole assembly (BHA) is a section of the drill string located at the bottom of the drill string during drilling. It consists of drill bits, drill collars, centralizers, drill pipe, and other drilling tools that work together and connect to form a single unit. Common BHAs include full-hole assemblies, pendulum assemblies, and turret assemblies. Drill string parameters of the BHA measured within the target well section include the drill string's elastic modulus, moment of inertia, linear weight, weight on bit, and torque.

[0045] In this embodiment, the drill string parameters of the bottom drill string assembly and the wellbore trajectory parameters of each measuring point measured in the target well section can be determined by measuring tools installed in the drilling equipment and drill string assembly during the drilling process. By analyzing the wellbore trajectory parameters of each measuring point in the target well section and the drill string parameters of the bottom drill string assembly, the wellbore trajectory parameters of each measuring segment in the target well section and the distribution of the bottom drill string assembly in the formation space of each measuring segment can be determined. In turn, the deviation between the bottom drill string assembly axis and the wellbore axis caused by the spatial deformation of the bottom drill string assembly at each measuring point can be determined.

[0046] In one exemplary embodiment, in step S1, wellbore trajectory control data of the wellbore trajectory measurement segment to be corrected is acquired; wherein, the wellbore trajectory control data includes wellbore trajectory measurement data, drill string assembly parameters, and drilling parameters;

[0047] The wellbore trajectory control data includes: wellbore trajectory measurement data, drill string assembly parameters, drilling parameters, and wellbore trajectory measurement segments to be corrected.

[0048] The wellbore trajectory measurement data is a collection of relevant data recorded at various measurement points using measuring tools during the drilling process; the wellbore trajectory measurement data includes the well depth data 's' at each measurement point and the inclination angle data corresponding to that depth. And azimuth data φ.

[0049] The well depth data s refers to the length from the wellhead rotary table position to a certain point on the wellbore axis, in meters;

[0050] The well inclination angle refers to the phenomenon that the actual wellbore axis deviates from the vertical direction. Specifically, it is the angle between the tangent direction of a point on the wellbore axis and the vertical line, and the unit is degrees (°) or radians (rad).

[0051] The azimuth angle is the angle between the tangent direction of the projection point of the wellbore axis onto the horizontal plane and the due north direction, and is expressed in degrees (°) or radians (rad).

[0052] The drill string assembly parameters include the material, inner and outer diameters, and linear weight of the components constituting the assembly, such as the drill bit, drill collar, drill pipe, stabilizer, and screw motor, as well as the wellbore diameter and drilling fluid density during drilling. The parameters of each component constituting the drill string assembly can be obtained through engineering logging parameter records or measurement using specialized tools, or from the tubing string parameters in the daily drilling report; the wellbore diameter can be indirectly obtained based on the drill bit size in the assembly, or measured using a real-time caliper; the drilling fluid density can be obtained through real-time measurement or logging parameter records.

[0053] The drilling parameters include drilling pressure, rotational speed, torque, drilling fluid discharge rate, and pump pressure corresponding to the well depth, which can be obtained through the engineering logging parameter record table.

[0054] The wellbore trajectory segment to be corrected [s] start ,s end ], that is, the well section that needs to be corrected due to deviations in the wellbore trajectory measurement data, where s start s represents the starting point of this well section. end This marks the end point of that well section. start Greater than 0, s end It can be less than the maximum well depth of the drilled well, and can also be increased as the drilling depth increases.

[0055] In one exemplary embodiment, step S2 involves determining multiple measurement points within the wellbore trajectory measurement segment to be corrected and the corresponding wellbore trajectory measurement data for each measurement point, including:

[0056] Step S21: Determine the starting correction point of the well trajectory measurement segment to be corrected based on the well trajectory measurement data, the drilling parameters, and the well trajectory measurement segment to be corrected;

[0057] Step S22: Determine multiple measurement points to be corrected based on the determined starting correction point.

[0058] The well depth at which the measurement point with a relatively small change rate of well inclination angle and a small drilling pressure value is selected is taken as the starting point s0 of the well trajectory measurement segment that needs to be corrected. The axis of the drill string assembly at this point tends to coincide with the axis of the wellbore, which makes the relative measurement error smaller and thus improves the accuracy of subsequent measurement while drilling data correction.

[0059] In one exemplary embodiment, determining the starting correction point of the wellbore trajectory segment to be corrected based on the wellbore trajectory measurement data, the drilling parameters, and the wellbore trajectory segment to be corrected includes:

[0060] Step S211: Determine multiple measuring points within a predetermined range of the starting point of the logging section of the well trajectory to be corrected, where the well inclination angle is greater than a predetermined value;

[0061] Step S212: Calculate the rate of change of well inclination angle between each measuring point and its adjacent measuring points;

[0062] Step S213: Sort the multiple well inclination angle change rates and select the first n measuring points in the sequence as the initial first measuring point;

[0063] Step S214: Sort the drilling pressure values ​​corresponding to multiple initial first measuring points, and determine the initial first measuring point with the smallest drilling pressure value as the starting point of the well trajectory measuring segment to be corrected.

[0064] The rate of change is the ratio between the difference in well inclination angle and the difference in well depth between adjacent measuring points.

[0065] In one exemplary embodiment, in step S3, for each measuring point to be corrected, the wellbore trajectory calculation data of the measuring point to be corrected and the wellbore trajectory calculation data of the corresponding drill bit position of the measuring point to be corrected are calculated using the radius of curvature method, including:

[0066] Step S31: Select the first and second measuring points that satisfy the distance constraint conditions from the upper part of the well depth where the measuring point to be corrected is located;

[0067] Step S32: Based on the wellbore trajectory data of the first and second measuring points, calculate the wellbore trajectory calculation data of the measuring point to be corrected and the wellbore trajectory calculation data of the corresponding drill bit of the measuring point to be corrected using the radius of curvature method.

[0068] In this step, the wellbore trajectory data corresponding to the first and second measuring points includes: wellbore trajectory measurement data or corrected wellbore trajectory data. If corrected wellbore trajectory data exists, it should be used preferentially.

[0069] In an exemplary embodiment, in step S4, the well inclination angle and azimuth angle at the corresponding position of the measuring point to be corrected on the bottom drill string assembly axis are calculated based on the bottom drill string assembly spatial deformation and the wellbore trajectory calculation data of the measuring point to be corrected corresponding to the drill bit position. This includes:

[0070] Step S41: Determine the measuring point to be corrected based on the wellbore trajectory calculation data of the first and second measuring points. Three-dimensional coordinates on the wellbore axis ;

[0071] Step S42: Establish a three-dimensional small deflection model of the bottom drill string assembly based on the bottom drill string assembly parameters, drilling parameters, and wellbore trajectory calculation data of the corresponding drill bit positions of the measuring points to be corrected;

[0072] The three-dimensional small deflection model is a mathematical model used to analyze the mechanical behavior of an object when its deformation (deflection) is relatively small under the action of external forces. In drilling engineering, this model is used to analyze the three-dimensional static characteristics of bottom hole assembly (such as drill bit, stabilizer, flexible joint, etc.) in the wellbore, playing a particularly important role in controlling the wellbore trajectory and ensuring drilling quality.

[0073] Step S43: Solve the three-dimensional small deflection model using the weighted residual method to obtain the deformation of the bottom drill string assembly at different well depths in each measuring section of the target well section;

[0074] Step S44: Based on the deformation of the bottom drill string assembly at different depths within each measuring section of the target well section and the measuring points to be corrected... Three-dimensional coordinates on the wellbore axis Calculate the position of the measuring point to be corrected on the axis of the bottom drill string assembly. 3D coordinates;

[0075] Step S45: Based on the determined bottom drill string assembly axis, at the position of the measuring point to be corrected. The three-dimensional coordinates are obtained at the position of the measuring point to be corrected on the axis of the bottom drill string assembly. The well inclination angle and azimuth angle.

[0076] Among them, the measuring points to be corrected The wellbore trajectory calculation data includes the following inclination angle and azimuth angle:

[0077]

[0078]

[0079] In the above formula, The well inclination angle in the well trajectory data of the measuring point to be corrected is calculated. Calculate the azimuth angle in the well trajectory data for the measuring point to be corrected;

[0080] The wellbore inclination angle and azimuth angle in the wellbore trajectory calculation data of the corresponding drill bit at the measuring point to be corrected are:

[0081]

[0082]

[0083] in, The well inclination angle of the drill bit corresponding to the measuring point to be corrected. The azimuth angle of the drill bit corresponding to the measuring point to be corrected. The well inclination angle of the first measuring point A. The well inclination angle of the second measuring point B; The well depth of the first measuring point A is... The well depth at the second measuring point B; Let A be the azimuth angle of the first measuring point. The azimuth angle of the second measuring point B.

[0084] In one exemplary embodiment, in step S45, the position of the measuring point to be corrected on the determined bottom drill assembly axis is determined. The three-dimensional coordinates are obtained at the position of the measuring point to be corrected on the axis of the bottom drill string assembly. The well inclination angle and azimuth angle include:

[0085] S451. Identifying and Selecting Measurement Points to be Corrected Three-dimensional coordinates of adjacent points that are less than a predetermined value;

[0086] This predetermined value can be limited according to specific circumstances, for example, 0.1m. (This is related to the measurement point to be calibrated.) Adjacent points that are less than a predetermined value It is the measurement point to be corrected A point whose coordinates are very close, the adjacent point Three-dimensional coordinates can be adopted based on their corresponding well depth data and The same method was used to determine this.

[0087] S452, Based on the position of the measuring point to be corrected on the axis of the bottom drill string assembly. The tangent vector between two points is determined by their three-dimensional coordinates and the three-dimensional coordinates of adjacent measuring points.

[0088] S453. Determine the position of the measuring point to be corrected on the axis of the bottom drill string assembly based on the tangent vector. well inclination angle and azimuth .

[0089] In an exemplary embodiment, in step S5, the deviation angle between the wellbore trajectory calculation data of the measuring point to be corrected and the trajectory data (inclination angle, azimuth angle) at the corresponding position of the measuring point to be corrected on the bottom drill string assembly axis is determined. Specifically, the deviation angle includes... The wellbore inclination and azimuth deviation angles:

[0090] ;

[0091] ;

[0092] In the above formula, for The well inclination angle of the location, for The azimuth deviation angle of the position; The location of the measuring point to be corrected on the axis of the bottom drill string assembly. The well inclination angle, The location of the measuring point to be corrected on the axis of the bottom drill string assembly. The azimuth angle; Measurement points to be corrected The well inclination angle in the well trajectory calculation data. Measurement points to be corrected The azimuth angle in the wellbore trajectory calculation data.

[0093] In one exemplary embodiment, in step S6, the corrected wellbore trajectory data is obtained based on the deviation angle and the corresponding wellbore trajectory measurement data of the measuring point to be corrected, including: the corrected wellbore trajectory data includes the corrected inclination angle and azimuth angle as follows:

[0094] ;

[0095] ;

[0096] In the above formula, It is based on the position measured by the drilling measurement tool. The well inclination angle, It is based on the position measured by the drilling measurement tool. The azimuth angle; This is the final well inclination angle after correction at that measuring point. It is the final azimuth angle after the measurement point has been corrected.

[0097] The technical effects achieved by this embodiment are:

[0098] The process involves determining the wellbore trajectory parameters at each measuring point within the target well section, as well as the drill string parameters of the bottom drill string assembly. Based on the wellbore trajectory parameters of two adjacent measuring points, the wellbore axis coordinates of the corresponding measuring section within the target well section are determined. The drill string assembly axis coordinates of the bottom drill string assembly within that measuring section are also determined based on the bottom drill string assembly. The deviation angle between the bottom drill string assembly axis and the wellbore axis is calculated based on the wellbore axis coordinates and the bottom drill string assembly axis coordinates. The wellbore trajectory parameters at each measuring point are then corrected sequentially based on the deviation angle. This embodiment of the technical solution, considering the spatial deformation of the bottom drill string assembly within the wellbore, corrects the wellbore trajectory parameters using the calculated deviation angle to obtain scientific and accurate wellbore trajectory data.

[0099] Example 1

[0100] Step 1: Acquire wellbore trajectory control data

[0101] In this step, the wellbore trajectory control data includes: wellbore trajectory measurement data, drill string assembly parameters, drilling parameters, and the wellbore trajectory measurement segment to be corrected.

[0102] The wellbore trajectory segment to be corrected [s] start ,s end ], that is, the well section that needs to be corrected due to deviations in the wellbore trajectory measurement data, where s start s represents the starting point of this well section. end This marks the end point of that well section. start Greater than 0, s end It is less than the total well depth of the drilled well, and can also be increased as the drilling depth increases.

[0103] Step 2: Determine the starting point of the wellbore trajectory measurement segment to be corrected.

[0104] Step 21: Determine the starting point s of the logging section of the wellbore trajectory to be corrected. start Multiple measuring points within a predetermined range whose well inclination angle is greater than a predetermined value;

[0105] Step 22: Calculate the rate of change of well inclination angle between each measuring point and its adjacent measuring points;

[0106] Step 23: Sort the multiple well inclination angle change rates from smallest to largest, and select the first n measuring points in the sequence as the initial first measuring point;

[0107] The rate of change of well inclination angle is the ratio between the difference in well inclination angle between adjacent measuring points and the distance between well depths.

[0108] Step 24: Sort the drilling pressure values ​​corresponding to multiple initial first measuring points, and determine the initial first measuring point with the smallest drilling pressure value as the starting point of the well trajectory measuring segment to be corrected.

[0109] In this embodiment, if the starting point s start For wellhead locations, if the inclination angles of several measuring points at the wellhead are all around 0°, then the well trajectory measurement data does not require correction. Generally, if the inclination angle change rate of a measuring point is relatively large, and the corresponding drilling pressure value is also large, it is judged that the measuring point may have a deviation and needs correction; therefore, it should not be selected as the starting point of the well trajectory measurement segment to be corrected. For example: 1) Starting from the wellhead, after the inclination angle is >1°, select five measuring points A, B, C, D, and E with inclination angles >1°; 2) Calculate the inclination angle change rate between each of the five measuring points and the previous measuring point, and determine the three measuring points A, B, and D with the smallest change rate; 3) Determine the measuring point B with the smallest drilling pressure among the three measuring points with the smallest change rate as the starting point of the well trajectory measurement segment to be corrected.

[0110] Step 3: Correct the measurement data of the wellbore trajectory within the section to be corrected in sequence.

[0111] The measurement data for correcting the wellbore trajectory within the test section sequentially includes the following steps:

[0112] Step 31. Select two measuring points that satisfy the distance constraint condition from the upper part of the well depth where the measuring point to be corrected is located;

[0113] Step 32. Based on the data from the two selected measuring points, use the radius of curvature method to calculate the wellbore trajectory data of the measuring point to be corrected and the wellbore trajectory data of the corresponding drill bit position of the measuring point to be corrected;

[0114] Step 33. Calculate the position of the measuring point on the axis of the bottom drill string assembly to be corrected based on the spatial deformation of the bottom drill string assembly. The well inclination angle and azimuth angle;

[0115] Step 34. Calculate the wellbore trajectory data of the measuring point to be corrected and the position of the measuring point on the bottom drill string assembly axis based on the data. The deviation angle for calculating the well inclination angle and azimuth angle;

[0116] Step 35. Correct the wellbore trajectory measurement data to be corrected based on the obtained deviation angle.

[0117] Step 36. For each measuring point, execute steps 31-35 sequentially until all measuring points in the section to be corrected are completed.

[0118] In step 31, two measuring points that satisfy the distance constraint condition are selected from the upper part of the well depth where the measuring point to be corrected is located. The specific implementation steps include:

[0119] The first scenario: If there are no measuring points above the wellbore trajectory measurement data points to be corrected that satisfy the distance constraint conditions, then two virtual measuring points that satisfy the distance constraint conditions with the wellbore trajectory measurement data points to be corrected are calculated using the radius of curvature method.

[0120] The second scenario: If there is only one measuring point that meets the distance constraint condition above the well trajectory measurement data points to be corrected, then another virtual measuring point is interpolated using the radius of curvature method based on this measuring point that meets the distance constraint condition.

[0121] The third scenario: If there are two or more measuring points above the wellbore trajectory measurement data points that meet the distance constraint conditions, then select the two measuring points that are closest to each other and have the corrected data.

[0122] The distance constraint can be either 30m or 40m, depending on the specific circumstances.

[0123] Specifically, such as Figure 3 As shown, the well depth distance between two measuring points A and B is 10-50m, with 10-25m being preferred. The two measuring points A and B can be continuous or discontinuous, meaning that there can be other well depths of measurement-while-drilling data sets between the two measuring points. In some cases, if the measuring point distance is large, the radius of curvature method can be used to supplement the calculation of measurement-while-drilling data at any depth between the two measuring points.

[0124] If there are multiple measurement points above the wellbore trajectory measurement data points to be corrected, the already corrected measurement data will be selected first.

[0125] Step 32. Based on the data from the two selected measuring points, use the radius of curvature method to calculate the wellbore trajectory data of the measuring point to be corrected and the wellbore trajectory data of the corresponding drill bit position of the measuring point to be corrected;

[0126] Step 321. Obtain the drill string assembly parameters and drilling parameters between the two measuring points, and establish the wellbore axis formed by the two measuring points;

[0127] The bottom drill string assembly (BFA) refers to the section of the drill string located at the bottom of the drill string during drilling, consisting of drill bits, drill collars, centralizers, drill pipe, and other drilling tools that work together and connect. Common BFAs can be categorized into full-hole assemblies, pendulum assemblies, and tower assemblies based on their size and centralizer placement. The BFA parameters measured in real-time within the target section include: the elastic modulus, moment of inertia, linear weight of each component of the BFA, as well as data such as drilling pressure and torque.

[0128] Step 322. Calculate the wellbore trajectory calculation data for the location of the measuring point to be corrected and the corresponding drill bit position based on the data from the two measuring points, as follows:

[0129] In this step, for these two measuring points, if corrected wellbore trajectory data exists, the corrected wellbore trajectory data is selected; otherwise, the wellbore trajectory measurement data is selected.

[0130] The specific calculation method can use the radius of curvature method to calculate the wellbore trajectory calculation data of the measuring point position to be corrected and the corresponding drill bit position, as detailed below. Figure 4 As shown, the location of the measuring point to be corrected is obtained based on the actual measurement data. The drill bit position is determined by the well depth and bottom hole assembly parameters. The well depth, and the location of the measuring point to be corrected. This refers to the location of the probe of the measurement-while-drilling device in the drilling assembly.

[0131] Furthermore, the position of the measuring point to be corrected is calculated using the radius of curvature method based on measuring points A and B. Well inclination angle and azimuth angle, drill bit position Inclination angle and azimuth angle of the well:

[0132]

[0133]

[0134]

[0135]

[0136] In the formula, The inclination angle and azimuth angle are calculated using the radius of curvature method, where s is the depth and the subscript represents the location point.

[0137] in, Let A be the well inclination angle. The well inclination angle at measuring point B; Let A be the well depth at measuring point A. The well depth at measuring point B; Let A be the azimuth angle of measurement point A. Here is the azimuth angle of measurement point B.

[0138] Measurement points to be corrected The calculated well inclination angle, Measurement points to be corrected Calculate the azimuth angle. Measurement points to be corrected The computational depth.

[0139] Measurement points to be corrected Corresponding drill bit position The calculated well inclination angle, Measurement points to be corrected Corresponding drill bit position Calculate the azimuth angle. Measurement points to be corrected Corresponding drill bit position The computational depth.

[0140] In step 33, the position of the measuring point on the axis of the bottom drill string assembly to be corrected is calculated based on the spatial deformation of the bottom drill string assembly. The well inclination angle and azimuth angle.

[0141] Step 331: Determine the location to be corrected Three-dimensional coordinates of the wellbore axis

[0142] Wellbore axis coordinates are used to describe the actual spatial shape of the wellbore axis. In drilling engineering, the wellbore axis is regarded as a specific spatial curve of the wellbore distributed in the formation. When describing the actual spatial shape of the wellbore axis through wellbore axis coordinates, the wellbore axis coordinates are usually located in a horizontal coordinate system with the wellhead as the origin, including the coordinates in the vertical, north, and east directions.

[0143] The three-dimensional coordinates of the wellbore trajectory, i.e., the three-dimensional coordinates of the wellbore axis of the measuring point, can be calculated using the inclination angle and azimuth angle, for example, the position to be corrected. The three-dimensional coordinates of the wellbore axis at the location are:

[0144]

[0145]

[0146]

[0147] In the above formula, , , for Three-dimensional coordinates of the wellbore axis; , , It includes the well depth, inclination angle, and azimuth angle at measuring point A; , , It refers to the well depth, inclination angle, and azimuth angle at measuring point B; , , These are the three-dimensional coordinates of point A.

[0148] Step 332: Calculate the bottom drill string assembly in the range (A~) This interval) deformation

[0149] The bottom drill string assembly axis coordinates are used to describe the position and shape of the bottom drill string assembly in the wellbore, and also include the coordinates in the vertical, north, and east directions.

[0150] The three-dimensional spatial deformation analysis of the bottom drill string assembly can be performed based on the elastic modulus, moment of inertia, linear weight, drilling pressure, and torque data, and the axial coordinates of the bottom drill string assembly in each measurement section can be determined based on the calculation results.

[0151] The aforementioned bottom drill string assembly spatial deformation includes deformation in the wellbore plane and deformation in the azimuth plane. The bottom drill string assembly spatial deformation is the deformation of the bottom drill string assembly in two planes. The method for calculating the bottom drill string assembly spatial deformation is as follows:

[0152] Step 1: Establish a three-dimensional small deflection model of the bottom drill string assembly based on the bottom drill string assembly parameters and drilling parameters;

[0153]

[0154] Where E is the elastic modulus of the drill string, Pa; and I is the moment of inertia of the drill string, m. 4 q represents the linear weight of the drill string, N / m; M t denoted as σT, where σT is the torque of the drill string, N·m; σB is the drill string pressure, N; σU is the deformation of the bottom drill string assembly on the well inclination plane; σV is the deformation of the bottom drill string assembly on the azimuth plane; α is the well inclination angle at any point on the axis of the bottom drill string assembly, rad.

[0155] l is the curve length from any point on the bottom drill string assembly axis to the lower end of the target section. .

[0156] The second step is to solve the three-dimensional small deflection model using the weighted residual method to obtain the deformation of the bottom drill string assembly at different well depths in each measuring section of the target well section.

[0157] The deformation includes deformation on the inclination plane and deformation on the azimuth plane:

[0158]

[0159] Among them, a ir b ir Let l be a coefficient. At this point, for any position of the bottom drill string assembly, i.e., when l takes different values, i.e. when the well depth W is different, the corresponding deformation amounts U and V can be obtained.

[0160] The Weighted Residual Method (WRM) is a mathematical method for solving partial differential equations (PDEs) and other types of mathematical equations. The basic idea of ​​this method is to transform the original equation into a residual equation, and then minimize this residual by selecting an appropriate weight function, thereby obtaining an approximate solution to the original equation.

[0161] Step 333. Calculate the position of the measuring point to be corrected on the axis of the bottom drill string assembly based on the spatial deformation of the bottom drill string assembly. Three-dimensional coordinates of the wellbore axis:

[0162] (10)

[0163] (11)

[0164] (12)

[0165] In the above formula, , and Calculate the spatial deformation of the bottom drill string assembly at the position of the measuring point to be corrected on the axis of the bottom drill string assembly. The three-dimensional coordinates of the wellbore axis The bottom drill string assembly is positioned at the measurement point to be corrected. Deformation on the inclined plane of the well The bottom drill string assembly is positioned at the measurement point to be corrected. Deformation on the azimuth plane.

[0166] Step 334. Determine the position of the measuring point to be corrected on the axis of the bottom drill string assembly. The well inclination angle and azimuth angle.

[0167] The first step is to determine the tangent vector by using the three-dimensional coordinates of the measuring point to be corrected on the axis of the drill string assembly and the three-dimensional coordinates of its closely adjacent points.

[0168] The tangent vector refers to the difference between the three-dimensional coordinates of the measuring point to be corrected on the axis of the drill string assembly and the three-dimensional coordinates of its immediately adjacent points. This is used to correct the measuring point position. For example, its closest neighbor is denoted as tangent vector The calculation formula is:

[0169] (13)

[0170] (14)

[0171] (15)

[0172] The point closely adjacent to the measurement point to be corrected refers to the point required when calculating the tangent vector. The distance between the point and the measurement point to be corrected should not exceed 0.1m; otherwise, a large error may occur when calculating the tangent vector deviation angle.

[0173] The second step is to determine the position of the measuring point to be corrected on the axis of the bottom drill string assembly based on the tangent vector. The well inclination angle and azimuth angle.

[0174] The angle between the tangent vector and the vertical coordinate axis is the well inclination angle; the angle between the projection of this tangent vector onto the horizontal plane and the true north direction is the azimuth angle. This is used to correct the position of the measuring point. For example, its closest neighbor is denoted as The position of the measuring point to be corrected on the axis of the bottom drill string assembly is obtained through spatial analytical geometry calculation. Inclination angle and azimuth angle of the well:

[0175] (16)

[0176] (17)

[0177] In the above formula, Location of the measuring point to be corrected on the axis of the bottom drill string assembly The well inclination angle, Location of the measuring point to be corrected on the axis of the bottom drill string assembly The azimuth angle.

[0178] Step 34. Calculate the wellbore trajectory data of the measuring point to be corrected and the position of the measuring point on the bottom drill string assembly axis based on the data. The deviation angle for calculating the well inclination angle and azimuth angle;

[0179] The aforementioned deviation angle is used to quantitatively describe the deviation between the bottom drill string assembly axis and the wellbore axis. After determining the deviation angle between the bottom drill string assembly axis and the wellbore axis, the subsequent drilling wellbore trajectory control can be guided based on the deviation angle, thereby improving the drilling trajectory control accuracy.

[0180] The deviation angles include the well inclination deviation angle and the azimuth deviation angle, based on the position of the measuring point to be corrected on the bottom drill string assembly axis. The well inclination angle, azimuth angle, and the position to be corrected obtained using the radius of curvature method Perform a difference operation on the inclination angle and azimuth angle of the well:

[0181] (18)

[0182] (19)

[0183] in, , That is The wellbore inclination angle and azimuth angle of the location; , The location of the measuring point to be corrected on the axis of the bottom drill string assembly. The inclination angle and azimuth angle of the well; , The position to be corrected is obtained using the radius of curvature method. The well inclination angle and azimuth angle.

[0184] Step 35. Correct the wellbore trajectory measurement data to be corrected based on the obtained deviation angle.

[0185] The wellbore trajectory measurement data of the measurement point to be corrected is obtained from the measurement-while-drilling tool. Then, based on the deviation angle between the bottom drill string assembly axis and the wellbore axis, the wellbore trajectory measurement data of the measurement point to be corrected is corrected. For example, the location of the measuring point obtained based on the measurement while drilling tool. Well inclination angle and measurement point location Azimuth Therefore, the final corrected well inclination angle and azimuth angle of the measuring point are:

[0186] (20)

[0187] (twenty one)

[0188] In the above formula, , It is based on the position measured by the drilling measurement tool. The inclination angle and azimuth of the well; , It refers to the final well inclination angle and azimuth angle after the measurement point is corrected.

[0189] Step 36. Perform steps 31-35 sequentially for each measuring point until all measuring points in the section to be corrected are corrected.

[0190] Based on the final corrected wellbore trajectory data of the measuring points, and using the wellbore trajectory measurement data of the previous measuring point as the two selected measuring points, repeat steps 31-35 until the measurement values ​​of all measuring points are corrected. Figure 5 As shown.

[0191] Example 2

[0192] Based on the commonly used BHA (Browser Harmony Analysis) in the field, correction calculations were performed for the measuring point well trajectory of the example well P1. The specific process is as follows:

[0193] The drilling tool assembly used in this well is as follows: 215.9mm PDC drill bit + 172mm single-bend screw (1.25°, 210mm stabilizer) + 178mm non-magnetic drill collar + 214mm stabilizer + 178mm drill collar.

[0194] The first step is to acquire wellbore trajectory control data for the wellbore trajectory measurement segment to be corrected; wherein, the wellbore trajectory control data includes wellbore trajectory measurement data, drill string assembly parameters, and drilling parameters;

[0195] The second step is to determine the starting point of the initial correction section based on the wellbore trajectory control data of the known measuring points.

[0196] Based on wellbore trajectory measurement data, drilling parameters, and the wellbore trajectory section to be corrected, an 880m location measurement point was determined as the starting point of the initial correction section. Figure 6 As shown.

[0197] The third step involves calculating the wellbore trajectory data for each measurement point to be corrected using the radius of curvature method. This includes analyzing the drilling parameters and bottom hole assembly parameters for a given measurement point using a three-dimensional small deflection model of the bottom hole assembly. The spatial configuration of the BHA axis and the wellbore axis for that measurement section is then obtained. Figure 7 As shown.

[0198] The wellbore trajectory axis of this section aligns with the BHA axis in the inclination plane and azimuth plane as follows: Figure 8 As shown.

[0199] The fourth step is to determine the deviation angle between the wellbore trajectory calculation data of the measuring point to be corrected and the well inclination angle and azimuth angle at the corresponding position of the measuring point to be corrected on the bottom drill string assembly axis.

[0200] In this step, the calculated spatial angle deviation of the measured section is as follows: Figure 9 As shown. Therefore, the inclination angle deviation and azimuth deviation angle of this well section can be further calculated as follows: Figure 10 , Figure 11 As shown in the figure, the maximum deviation of the inclination angle of the measuring point in this section is 0.23°; the maximum deviation of the azimuth angle is 2.1°.

[0201] Step 5: Obtain the corrected wellbore trajectory data based on the deviation angle and the wellbore trajectory measurement data at the corresponding positions of the measuring points to be corrected on the bottom drill string assembly axis.

[0202] The measured values ​​at the measuring points can be corrected based on the deviation angle, and so on, to obtain the wellbore inclination and azimuth correction results for the entire well. Figure 12 , Figure 13As shown in the figure, the well inclination angle after correction is basically close to the original wellbore, and the maximum deviation between the corrected well inclination angle and the original measurement data is 0.38°; the maximum deviation between the corrected azimuth angle and the original azimuth angle is 1.94°, which is located in the curved section of the well.

[0203] The corrected 3D wellbore trajectory is as follows Figure 14 As shown in the figure, the difference between the wellbore trajectory described by the wellbore trajectory parameters and the correction results in a more realistic wellbore trajectory parameter.

[0204] It will be understood by those skilled in the art that all or some of the steps, systems, or apparatuses disclosed above, and their functional modules / units, can be implemented as software, firmware, hardware, or suitable combinations thereof. In hardware implementations, the division between functional modules / units mentioned above does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed collaboratively by several physical components. Some or all components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit (ASIC). Such software may be distributed on a computer-readable medium, which may include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer. Furthermore, it is well known to those skilled in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

Claims

1. A method for correcting wellbore trajectory parameters, characterized in that, The method includes: Acquire wellbore trajectory control data for the wellbore trajectory measurement segment to be corrected; wherein, the wellbore trajectory control data includes wellbore trajectory measurement data, drill string assembly parameters, and drilling parameters; Determine multiple measurement points within the well trajectory measurement segment to be corrected and the corresponding well trajectory measurement data for each measurement point to be corrected; For each measuring point to be corrected, the radius of curvature method is used to calculate the wellbore trajectory calculation data of the measuring point to be corrected and the wellbore trajectory calculation data of the corresponding drill bit position of the measuring point to be corrected; Calculate the well inclination angle and azimuth angle at the corresponding position of the measuring point to be corrected on the bottom drill string assembly axis based on the well trajectory calculation data of the drill string assembly parameters, drilling parameters, and the corresponding drill bit position of the measuring point to be corrected. The deviation angle between the wellbore trajectory calculation data of the measuring point to be corrected and the well inclination angle and azimuth angle at the corresponding position of the measuring point to be corrected on the bottom drill string assembly axis are determined. The corrected wellbore trajectory data is obtained based on the deviation angle and the corresponding wellbore trajectory measurement data of the measuring point to be corrected.

2. The method for correcting wellbore trajectory parameters according to claim 1, characterized in that, The determination of multiple measurement points within the wellbore trajectory measurement segment to be corrected, and the corresponding wellbore trajectory measurement data for each measurement point to be corrected, includes: The starting correction point of the well trajectory measurement segment to be corrected is determined based on the well trajectory measurement data, the drilling parameters, and the well trajectory measurement segment to be corrected. Based on the determined initial correction point, multiple measurement points to be corrected are identified.

3. The method for correcting wellbore trajectory parameters according to claim 2, characterized in that, The step of determining the starting correction point of the wellbore trajectory segment to be corrected based on the wellbore trajectory measurement data, the drilling parameters, and the wellbore trajectory segment to be corrected includes: Identify multiple logging points within a predetermined range whose well inclination angle is greater than a predetermined value, representing the starting point of the logging section of the well trajectory to be corrected; Calculate the rate of change of well inclination angle between each measuring point and its adjacent measuring points; Sort the multiple well inclination angle change rates from smallest to largest, and select the first n measuring points in the sequence as the initial first measuring point; The drilling pressure values ​​corresponding to multiple initial first measuring points are sorted, and the initial first measuring point with the smallest drilling pressure value is determined as the starting point of the well trajectory measuring segment to be corrected.

4. The method for correcting wellbore trajectory parameters according to claim 1, characterized in that, For each measuring point to be corrected, the wellbore trajectory calculation data for that measuring point and the wellbore trajectory calculation data for the corresponding drill bit position of the measuring point to be corrected are calculated using the radius of curvature method, including: Select the first and second measuring points that satisfy the distance constraint conditions from the upper part of the well depth where the measuring point to be corrected is located; Based on the corresponding wellbore trajectory data of the first and second measuring points, the wellbore trajectory calculation data of the measuring point to be corrected and the wellbore trajectory calculation data of the corresponding drill bit of the measuring point to be corrected are calculated using the radius of curvature method. The azimuth and inclination angles in the wellbore trajectory calculation data of the measuring point to be corrected are as follows: In the above formula, The well inclination angle in the well trajectory data of the measuring point to be corrected is calculated. Calculate the azimuth angle in the well trajectory data for the measuring point to be corrected; Measurement points to be corrected Depth data; The azimuth and inclination angles in the wellbore trajectory calculation data of the corresponding drill bit at the measurement point to be corrected are: ； ； in, The well inclination angle of the drill bit corresponding to the measuring point to be corrected. The azimuth angle of the drill bit corresponding to the measuring point to be corrected. Measurement points to be corrected Corresponding drill bit position Depth data, The well inclination angle of the first measuring point A. The well inclination angle of the second measuring point B; The well depth of the first measuring point A is... The well depth at the second measuring point B; Let A be the azimuth angle of the first measuring point. The azimuth angle of the second measuring point B.

5. The method for correcting wellbore trajectory parameters according to claim 4, characterized in that, The wellbore trajectory data corresponding to the first and second measuring points include: wellbore trajectory measurement data or corrected wellbore trajectory data.

6. The method for correcting wellbore trajectory parameters according to claim 5, characterized in that, The calculation of the well inclination angle and azimuth angle at the corresponding position of the measuring point to be corrected on the bottom drill string assembly axis, based on the well trajectory calculation data of the drill string assembly parameters, drilling parameters, and the corresponding drill bit position of the measuring point to be corrected, includes: The measuring points to be corrected were determined based on the wellbore trajectory calculation data from the first and second measuring points. Three-dimensional coordinates on the wellbore axis ; A three-dimensional small deflection model of the bottom drill string assembly is established based on the bottom drill string assembly parameters, drilling parameters, and wellbore trajectory calculation data of the corresponding drill bit positions at the measuring points to be corrected. The three-dimensional small deflection model was solved by weighted residual method to obtain the deformation of the bottom drill string assembly at different well depths in each measuring section of the target well section. Based on the deformation of the bottom drill string assembly at different depths within each section of the target well section and the measurement points to be corrected. Three-dimensional coordinates on the wellbore axis Calculate the position of the measuring point to be corrected on the axis of the bottom drill string assembly. 3D coordinates; Based on the determined position of the measuring point to be corrected on the bottom drill string assembly axis. The three-dimensional coordinates are obtained at the position of the measuring point to be corrected on the axis of the bottom drill string assembly. The well inclination angle and azimuth angle.

7. The method for correcting wellbore trajectory parameters according to claim 6, characterized in that, The measurement point to be corrected is located on the determined bottom drill string assembly axis. The three-dimensional coordinates are obtained at the position of the measuring point to be corrected on the axis of the bottom drill string assembly. The well inclination angle and azimuth angle include: Determine the location of the measuring point to be corrected within the drill assembly. Three-dimensional coordinates of adjacent points that are less than a predetermined value; Based on the position of the measuring point to be corrected on the axis of the bottom drill string assembly The tangent vector between two points is determined by their three-dimensional coordinates and the three-dimensional coordinates of adjacent measuring points. The position of the measuring point to be corrected on the axis of the bottom drill string assembly is determined based on the tangent vector. The well inclination angle and azimuth angle.

8. The method for correcting wellbore trajectory parameters according to claim 6, characterized in that, The deviation angle includes the measuring point to be corrected. The wellbore inclination and azimuth deviation angles: ； ； In the above formula, Measurement points to be corrected The well inclination angle of the location, Measurement points to be corrected The azimuth deviation angle of the position; The location of the measuring point to be corrected on the axis of the bottom drill string assembly. The well inclination angle, The location of the measuring point to be corrected on the axis of the bottom drill string assembly. The azimuth angle; Measurement points to be corrected The well inclination angle in the well trajectory calculation data. Measurement points to be corrected The azimuth angle in the wellbore trajectory calculation data.

9. The method for correcting wellbore trajectory parameters according to claim 8, characterized in that, The corrected wellbore trajectory data includes: the corrected inclination angle and azimuth angle are: ； ； In the above formula, It is based on the position measured by the drilling measurement tool. The well inclination angle, It is based on the position measured by the drilling measurement tool. The azimuth angle; This is the final well inclination angle after correction at that measuring point. It is the final azimuth angle after the measurement point has been corrected.

10. A device for correcting wellbore trajectory parameters, characterized in that, The device includes a memory and a processor; the memory is used to store a correction program for wellbore trajectory parameters, and the processor is used to read and execute the correction program for wellbore trajectory parameters, and to execute the method according to any one of claims 1-9.

11. A computer-readable storage medium storing a data processing program, the data processing program being executed by a processor of the wellbore trajectory parameter correction method according to any one of claims 1-9.

Images