Method and device for determining bi-two-dimensional orbit parameters of three-dimensional horizontal well

Abstract

The invention relates to the technical field of oil and gas drilling, and particularly discloses a method and device for determining bi-two-dimensional track parameters of a three-dimensional horizontal well, and the method comprises the steps that well mouth coordinates, horizontal section window entering target point coordinates and window exiting target point coordinates are obtained; based on the well mouth coordinates, the horizontal section window entering target point coordinates and the window exiting target point coordinates, the bidimensional orbit offset distance is calculated; determining a target average slope increase rate according to the maximum slope increase rate; based on the well mouth coordinates, the horizontal section window entering target point coordinates, the horizontal section window exiting target point coordinates and the target average increasing slope rate, double-two-dimensional orbit offset point coordinates and a double-two-dimensional orbit offset angle are calculated; and determining the bi-two-dimensional well track profile of the target three-dimensional horizontal well based on the bi-two-dimensional track offset point coordinates and the bi-two-dimensional track offset angle. According to the scheme, the efficiency, rationality and scientificity of the double-two-dimensional track design of the three-dimensional horizontal well can be effectively improved.

Description

Technical Field

[0001] This specification relates to the technical field of oil and gas drilling, and particularly to a method and device for determining double two-dimensional track parameters of a three-dimensional horizontal well. Background Art

[0002] The exploration and development of unconventional oil and gas resources such as shale oil and gas and tight oil and gas have been liberated by long horizontal well sections and large-scale volume fracturing technologies. New multi-well horizontal well drilling platforms and factory-style batch drilling and completion operations are widely used. This technology requires drilling a large number of long horizontal well sections on a limited drilling platform, which transforms the early two-dimensional horizontal wellbore track profile into a complex three-dimensional structure. The so-called three-dimensional horizontal well track refers to a horizontal well in which the azimuth line of the wellhead and the horizontal section of the horizontal well are not in the same direction, and there is a certain vertical distance between the wellhead and the azimuth line of the horizontal section, which is also called the offset. Generally speaking, the larger the offset of the horizontal well, the greater the drilling friction torque of the horizontal well section, the greater the difficulty of subsequent drilling construction, and the higher the risk of accidents such as sticking and pipe sticking during drilling and casing running operations. In order to reduce the drilling friction of three-dimensional horizontal wells, a double two-dimensional track design method has been developed on the basis of the conventional three-dimensional trajectory design method. The conventional three-dimensional track design method uses a five-section profile, namely "vertical section - build section - holding section - build with turn section - horizontal section", and the double two-dimensional track design method uses a nine-section profile, namely "vertical section - build section - holding section - drop section - near vertical section - build section - holding section - build section - horizontal section". The conventional three-dimensional track design method integrates "turn azimuth" and "build" in the fourth section of the track, which can shorten the wellbore length. However, the increase in torque and build occur simultaneously, resulting in a large drilling friction torque in the subsequent stage, which affects the extension length of the horizontal section of the horizontal well. The double two-dimensional track design method corrects the azimuth when the well inclination angle is small to complete the offset footage and then designs the build section trajectory. This method helps to shorten the length of the turn azimuth section, is beneficial to extending the length of the horizontal section, especially beneficial to subsequent casing running operations, and is also called a low-friction track, which is widely used in multi-well platform horizontal wells.

[0003] When generally designing a horizontal well track, the geological reservoir department gives the coordinates of the entry and exit target points of the horizontal section, and the drilling and completion engineering designers then design according to the wellhead coordinates. Due to the lack of a special double two-dimensional track design method, general designers need to continuously try appropriate offset angles and offset points in the track design software to calculate and determine an appropriate wellbore track profile, resulting in low design efficiency and no guarantee of achieving the optimal value.

[0004] In view of the above problems, no effective solution has been proposed yet. Summary of the Invention

[0005] The embodiments of this specification provide a method and device for determining the double two-dimensional orbit parameters of a three-dimensional horizontal well to solve the problems of low efficiency and poor effect in the existing double two-dimensional orbit design method.

[0006] The embodiments of this specification provide a method for determining the double two-dimensional orbit parameters of a three-dimensional horizontal well, including:

[0007] Obtain the wellhead coordinates, the in-window target point coordinates of the horizontal section, and the out-window target point coordinates of the target three-dimensional horizontal well; based on the wellhead coordinates, the in-window target point coordinates of the horizontal section, and the out-window target point coordinates of the target three-dimensional horizontal well, calculate the double two-dimensional orbit offset distance of the target three-dimensional horizontal well;

[0008] According to the maximum allowable build rate in the target plane of the three-dimensional horizontal well, determine the target average allowable build rate in the target plane of the target three-dimensional horizontal well;

[0009] Based on the wellhead coordinates, the in-window target point coordinates of the horizontal section, the out-window target point coordinates of the target three-dimensional horizontal well, and the target average allowable build rate, calculate the double two-dimensional orbit offset point coordinates of the target three-dimensional horizontal well; according to the wellhead coordinates, the in-window target point coordinates of the horizontal section, the out-window target point coordinates of the target three-dimensional horizontal well, the target average allowable build rate, the double two-dimensional orbit offset distance, and the double two-dimensional orbit offset point coordinates, calculate the double two-dimensional orbit offset angle of the target three-dimensional horizontal well;

[0010] Based on the double two-dimensional orbit offset point coordinates and the double two-dimensional orbit offset angle, determine the double two-dimensional wellbore orbit profile of the target three-dimensional horizontal well.

[0011] In one embodiment, based on the wellhead coordinates, the in-window target point coordinates of the horizontal section, and the out-window target point coordinates of the target three-dimensional horizontal well, calculating the double two-dimensional orbit offset distance of the target three-dimensional horizontal well includes:

[0012] Calculate the double two-dimensional orbit offset distance of the target three-dimensional horizontal well according to the following formula:

[0013]

[0014] where H is the double two-dimensional orbit offset distance, (X0, Y0, H0) are the wellhead coordinates, (X1, Y1, H1) are the in-window target point coordinates of the horizontal section, and (X2, Y2, H2) are the out-window target point coordinates of the horizontal section.

[0015] In one embodiment, according to the maximum allowable build rate in the target plane of the three-dimensional horizontal well, determining the target average allowable build rate in the target plane of the target three-dimensional horizontal well includes:

[0016] Obtain the maximum allowable build rate in the target plane of the three-dimensional horizontal well;

[0017] Determine a build rate correction value for the target three-dimensional horizontal well according to the maximum build rate;

[0018] Based on the maximum build rate and the build rate correction value, determine the target average build rate allowed in the target plane of the distance before the target of the three-dimensional horizontal well.

[0019] In one embodiment, calculate the double two-dimensional orbit deflection angle of the target three-dimensional horizontal well according to the wellhead coordinates of the target three-dimensional horizontal well, the coordinates of the window entry target point and the window exit target point of the horizontal section, the target average build rate, the double two-dimensional orbit offset distance, and the coordinates of the double two-dimensional orbit offset point, including:

[0020] Calculate the azimuth of the double two-dimensional orbit offset distance plane of the target three-dimensional horizontal well according to the coordinates of the double two-dimensional orbit offset point of the target three-dimensional horizontal well and the wellhead coordinates;

[0021] Based on the wellhead coordinates of the target three-dimensional horizontal well, the coordinates of the window entry target point and the window exit target point of the horizontal section, the double two-dimensional orbit offset distance, and the coordinates of the double two-dimensional orbit offset point, calculate the double two-dimensional orbit deflection angle of the target three-dimensional horizontal well.

[0022] In one embodiment, calculate the coordinates of the double two-dimensional orbit offset point of the target three-dimensional horizontal well according to the wellhead coordinates of the target three-dimensional horizontal well, the coordinates of the window entry target point and the window exit target point of the horizontal section, and the target average build rate, including:

[0023] Calculate the coordinates of the double two-dimensional orbit offset point of the target three-dimensional horizontal well according to the following formula:

[0024]

[0025] where, (X p , Y p , H p ) are the coordinates of the double two-dimensional orbit offset point, (X0, Y0, H0) are the wellhead coordinates, (X1, Y1, H1) are the coordinates of the window entry target point of the horizontal section, and (X2, Y2, H2) are the coordinates of the window exit target point of the horizontal section.

[0026] In one embodiment, calculate the azimuth of the double two-dimensional orbit offset distance plane of the target three-dimensional horizontal well according to the coordinates of the double two-dimensional orbit offset point of the target three-dimensional horizontal well and the wellhead coordinates, including:

[0027]

[0028] where, θ is the azimuth of the double two-dimensional orbit offset distance plane, (X p , Y p , H pLet \((X_0, Y_0, H_0)\) be the wellhead coordinates, \((X_1, Y_1, H_1)\) be the target coordinates for entering the window of the horizontal section, and \((X_2, Y_2, H_2)\) be the target coordinates for exiting the window of the horizontal section.

[0029] In one embodiment, based on the wellhead coordinates, the target coordinates for entering the window of the horizontal section, the target coordinates for exiting the window of the horizontal section, the double two-dimensional orbital offset distance, and the double two-dimensional orbital offset point coordinates of the target three-dimensional horizontal well, calculating the double two-dimensional orbital offset angle of the target three-dimensional horizontal well includes:

[0030] Based on the wellhead coordinates, the target coordinates for entering the window of the horizontal section, and the target coordinates for exiting the window of the horizontal section of the target three-dimensional horizontal well, calculating the foot coordinate point on the azimuth of the well section from the wellhead to the horizontal section;

[0031] Based on the wellhead coordinates, the target coordinates for exiting the window of the horizontal section of the target three-dimensional horizontal well, and the foot coordinate point, determining the double two-dimensional orbital offset angle.

[0032] The embodiments of this specification also provide a device for determining the double two-dimensional orbital parameters of a three-dimensional horizontal well, including:

[0033] A first calculation module, configured to obtain the wellhead coordinates, the target coordinates for entering the window of the horizontal section, and the target coordinates for exiting the window of the horizontal section of the target three-dimensional horizontal well; and also configured to calculate the double two-dimensional orbital offset distance of the target three-dimensional horizontal well based on the wellhead coordinates, the target coordinates for entering the window of the horizontal section, and the target coordinates for exiting the window of the horizontal section of the target three-dimensional horizontal well;

[0034] A first determination module, configured to determine the target average build rate allowed in the target plane of the target three-dimensional horizontal well according to the maximum build rate allowed in the target plane of the three-dimensional horizontal well;

[0035] A second calculation module, configured to calculate the double two-dimensional orbital offset point coordinates of the target three-dimensional horizontal well based on the wellhead coordinates, the target coordinates for entering the window of the horizontal section, the target coordinates for exiting the window of the horizontal section, and the target average build rate of the target three-dimensional horizontal well; and calculate the double two-dimensional orbital offset angle of the target three-dimensional horizontal well based on the wellhead coordinates, the target coordinates for entering the window of the horizontal section, the target coordinates for exiting the window of the horizontal section, the target average build rate, the double two-dimensional orbital offset distance, and the double two-dimensional orbital offset point coordinates of the target three-dimensional horizontal well;

[0036] A second determination module, configured to determine the double two-dimensional wellbore orbital profile of the target three-dimensional horizontal well based on the double two-dimensional orbital offset point coordinates and the double two-dimensional orbital offset angle.

[0037] An embodiment of this specification also provides a computer device, including a processor and a memory for storing instructions executable by the processor. When the processor executes the instructions, the steps of the method for determining the double two-dimensional orbit parameters of a three-dimensional horizontal well described in any of the above embodiments are implemented.

[0038] An embodiment of this specification also provides a computer-readable storage medium, on which computer instructions are stored. When the instructions are executed, the steps of the method for determining the double two-dimensional orbit parameters of a three-dimensional horizontal well described in any of the above embodiments are implemented.

[0039] In an embodiment of this specification, a method for determining the double two-dimensional orbit parameters of a three-dimensional horizontal well is provided. The wellhead coordinates, the coordinates of the target point for entering the horizontal section window, and the coordinates of the target point for exiting the window of the target three-dimensional horizontal well can be obtained. Based on the wellhead coordinates, the coordinates of the target point for entering the horizontal section window, and the coordinates of the target point for exiting the window of the target three-dimensional horizontal well, the double two-dimensional orbit offset distance of the target three-dimensional horizontal well is calculated. According to the maximum allowable build rate in the target plane of the three-dimensional horizontal well, the target average allowable build rate in the target plane of the three-dimensional horizontal well is determined. Based on the wellhead coordinates, the coordinates of the target point for entering the horizontal section window, the coordinates of the target point for exiting the window, the target average allowable build rate, the double two-dimensional orbit offset distance, and the coordinates of the double two-dimensional orbit offset point of the target three-dimensional horizontal well, the double two-dimensional orbit offset angle of the target three-dimensional horizontal well is calculated. Based on the coordinates of the double two-dimensional orbit offset point and the double two-dimensional orbit offset angle, the double two-dimensional wellbore orbit profile of the target three-dimensional horizontal well is determined. In the above solution, a brand-new double two-dimensional orbit design method is provided. By obtaining the wellhead, the coordinates of the target point for entering the horizontal section window and the target point for exiting the window of the target three-dimensional horizontal well, and the maximum allowable build rate in the target plane of the three-dimensional horizontal well, the coordinates of the double two-dimensional orbit offset point and the double two-dimensional orbit offset angle of the three-dimensional horizontal well are calculated, and then the double two-dimensional wellbore orbit profile of the horizontal well is quickly determined, avoiding the problems of low design efficiency and unreasonable design caused by repeated trial calculations, and effectively improving the efficiency, rationality, and scientific nature of the orbit design. Through the above solution, the technical problem in the prior art that when designing the double two-dimensional wellbore orbit of a three-dimensional horizontal well using a conventional orbit design method, the offset angle and offset point cannot be quickly determined and trial calculations are performed, resulting in low design efficiency, unreasonable design, and lack of scientific nature, is solved, and the technical effects of improving the wellbore orbit design efficiency and ensuring the rationality and scientific nature of the orbit design are achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The drawings described herein are used to provide a further understanding of this specification, form a part of this specification, and do not limit this specification. In the drawings:

[0041] Figure 1 The flowchart of the method for determining the double two-dimensional orbit parameters of a three-dimensional horizontal well in an embodiment of this specification is shown;

[0042] Figure 2 Shows the schematic diagram of the well layout of Platform H40 in a certain oilfield;

[0043] Figure 3 Shows the schematic diagram of the double two-dimensional orbit design in an embodiment of the present specification;

[0044] Figure 4 Shows the flowchart of the method for determining the double two-dimensional orbit parameters of a three-dimensional horizontal well in an embodiment of the present specification;

[0045] Figure 5 Shows the schematic diagram of the device for determining the double two-dimensional orbit parameters of a three-dimensional horizontal well in an embodiment of the present specification;

[0046] Figure 6 Shows the schematic diagram of the computer device in an embodiment of the present specification. Specific implementation manners

[0047] Hereinafter, the principles and spirit of the present specification will be described with reference to several exemplary implementation manners. It should be understood that these implementation manners are provided only to enable those skilled in the art to better understand and then implement the present specification, and do not limit the scope of the present specification in any way. On the contrary, these implementation manners are provided to make the disclosure of the present specification more thorough and complete, and to be able to fully convey the scope of the present disclosure to those skilled in the art.

[0048] Those skilled in the art know that the implementation manners of the present specification can be implemented as a system, a device, equipment, a method, or a computer program product. Therefore, the disclosure of the present specification can be specifically implemented in the following forms, namely: completely hardware, completely software (including firmware, resident software, microcode, etc.), or a combination of hardware and software.

[0049] A three-dimensional horizontal well refers to a horizontal well in which the wellhead and the azimuth line of the horizontal section of the horizontal well are not in the same direction, and there is a certain vertical distance from the wellhead to the azimuth line of the horizontal section, which is also called the offset. Generally speaking, the larger the offset of the horizontal well, the greater the drilling friction torque of the horizontal section, the greater the difficulty of subsequent drilling construction, and the higher the risk of accidents and complications such as sticking and pipe sticking during drilling and casing running operations. In order to reduce the drilling friction of three-dimensional horizontal wells, a double two-dimensional orbit design method has been developed on the basis of the conventional three-dimensional trajectory design method.

[0050] The double two-dimensional orbit design method is to straighten the azimuth when the well inclination angle is small, complete the offset footage, and then design the trajectory of the build-up section. This method helps to shorten the length of the azimuth change section, is beneficial to extending the length of the horizontal section, and is especially beneficial to the subsequent casing running operation. It is also called a low-resistance orbit and is widely used in horizontal wells of cluster platforms. The double two-dimensional horizontal well can design the wellbore orbit of the three-dimensional horizontal well in two intersecting vertical planes. Each vertical plane contains a two-dimensional orbit. The two-dimensional orbit plane for completing the offset is the offset plane, and the two-dimensional orbit plane for completing the target approach distance is the target approach distance plane. The offset angle is the angle between the offset plane and the target approach distance plane. For a double two-dimensional horizontal well, its offset angle is in the range of (0°, 180°).

[0051] Generally, when designing the horizontal well orbit, the geological reservoir department gives the coordinates of the entry window and exit window target points of the horizontal section, and the drilling and completion engineering designers then design according to the wellhead coordinates. Due to the lack of a special double two-dimensional orbit design method, general designers need to continuously try appropriate offset angles and offset points in the orbit design software to calculate and determine the appropriate wellbore orbit profile, resulting in low design efficiency and no guarantee of achieving the optimal value.

[0052] Based on this, the embodiments of this specification provide a method for determining the double two-dimensional orbit parameters of a three-dimensional horizontal well. Figure 1 The flowchart of the method for determining the double two-dimensional orbit parameters of a three-dimensional horizontal well in an embodiment of this specification is shown. Although this specification provides method operation steps or device structures as shown in the following embodiments or drawings, based on routine or non-creative labor, more or fewer operation steps or module units may be included in the method or device. In steps or structures where there is no necessary causal relationship logically, the execution order of these steps or the module structure of the device is not limited to the execution order or module structure described in the embodiments of this specification and shown in the drawings. When the method or module structure is applied to an actual device or terminal product, it can be executed sequentially or in parallel according to the method or module structure connection shown in the embodiments or drawings (for example, in a parallel processor or multi-threaded processing environment, or even a distributed processing environment).

[0053] Specifically, as Figure 1 shown, the method for determining the double two-dimensional orbit parameters of a three-dimensional horizontal well provided in an embodiment of this specification may include the following steps.

[0054] Step S101, obtain the wellhead coordinates, the entry window target point coordinates of the horizontal section, and the exit window target point coordinates of the target three-dimensional horizontal well; based on the wellhead coordinates, the entry window target point coordinates of the horizontal section, and the exit window target point coordinates of the target three-dimensional horizontal well, calculate the double two-dimensional orbit offset of the target three-dimensional horizontal well.

[0055] The method in this embodiment can be applied to a computer device. The wellhead coordinates, the entry window target coordinates of the horizontal section, and the exit window target coordinates of the target three-dimensional horizontal well can be obtained. The entry window target is the starting point of the horizontal section of the three-dimensional horizontal well. The exit window target is the ending point of the horizontal section of the three-dimensional horizontal well. The coordinates of the entry window point of the horizontal section and the exit window target can be given by the geological reservoir, and the wellhead coordinates can be measured according to the wellhead position arranged by the drilling platform.

[0056] Based on the wellhead coordinates, the entry window target coordinates of the horizontal section, and the exit window target coordinates of the target three-dimensional horizontal well, the double two-dimensional orbital offset of the target three-dimensional horizontal well can be calculated.

[0057] In some embodiments of this specification, calculating the double two-dimensional orbital offset of the target three-dimensional horizontal well based on the wellhead coordinates, the entry window target coordinates of the horizontal section, and the exit window target coordinates of the target three-dimensional horizontal well may include: calculating the double two-dimensional orbital offset of the target three-dimensional horizontal well according to the following formula:

[0058] Or,

[0059]

[0060] Where H is the double two-dimensional orbital offset, (X0, Y0, H0) are the wellhead coordinates, (X1, Y1, H1) are the entry window target coordinates of the horizontal section, (X2, Y2, H2) are the exit window target coordinates of the horizontal section, x1 = X1 - X0; y1 = Y1 - Y0; x2 = X2 - X0; y2 = Y2 - Y0.

[0061] Step S102, determine the target average build rate allowed in the target three-dimensional horizontal well according to the maximum build rate allowed in the target plane of the three-dimensional horizontal well.

[0062] In the target plane of the three-dimensional horizontal well, it is necessary to complete the trajectory control operations of the build-up section - the constant inclination section - the build-up section and then enter the horizontal section window. During the drilling process, the average increase in the well inclination degree per 30m well section is the average build rate or the average build-up rate. Affected by requirements such as the size of the casing to be run, the safe passage of subsequent completion strings, and the installation of oil and gas production equipment, there are certain requirements for the maximum build rate allowed in the target plane of the three-dimensional horizontal well, usually not exceeding 20° / 30m, generally between 5° / 30m and 15° / 30m, and it needs to be judged according to the wellbore structure of the three-dimensional horizontal well and the requirements of subsequent completion processes, and can be determined by the comprehensive analysis of drilling, completion and oil and gas production engineers.

[0063] The maximum build rate allowed in the target plane of the three-dimensional horizontal well is not the average build rate allowed in the target plane of the three-dimensional horizontal well. During the drilling process, a constant inclination section needs to be preset according to the actual formation changes to facilitate on-site operation adjustment. The maximum build rate allowed in the target plane of the three-dimensional horizontal well is denoted as γmax The allowable average build rate γ of the target three-dimensional horizontal well in the target front displacement plane can be adjusted according to the maximum build rate γ allowed in the target front displacement plane of the three-dimensional horizontal well max to better meet the actual requirements.

[0064] In some embodiments of the present specification, determining the target average build rate allowed in the target front displacement plane of the target three-dimensional horizontal well according to the maximum build rate allowed in the target front displacement plane of the three-dimensional horizontal well may include: obtaining the maximum build rate allowed in the target front displacement plane of the three-dimensional horizontal well; determining the build rate correction value of the target three-dimensional horizontal well according to the maximum build rate; and determining the target average build rate allowed in the target front displacement plane of the target three-dimensional horizontal well based on the maximum build rate and the build rate correction value. It can be understood that the average build rate is less than the maximum build rate. The average build rate may be the maximum build rate minus the build rate correction value. In one embodiment, the build rate correction value is positively correlated with the maximum build rate.

[0065] In one embodiment, the allowable average build rate of the target three-dimensional horizontal well in the target front displacement plane can be determined according to the following formula:

[0066] γ = γ max - a;

[0067] In the formula, the units of γ, γ max , and a are all ° / 30m; a is the actual orbit design correction value, and the units are all ° / 30m.

[0068] Generally, the larger γ max is, the larger the value of a is. According to the actual drilling operation requirements and experience, the determination method of a is as follows: when γ max ≤5° / 30m, a = 0.5 - 1.5° / 30m; when 5° / 30m < γ max ≤10° / 30m, a = 1 - 2° / 30m; when 10° / 30m < γ max ≤15° / 30m, a = 2 - 4° / 30m; when γ max >15° / 30m, a ≥ 4° / 30m. Through the above method, the orbit design correction value can be determined according to the maximum build rate, so as to obtain the corresponding average build rate.

[0069] Step S103: Calculate the double two-dimensional orbit offset point coordinates of the target three-dimensional horizontal well based on the wellhead coordinates, the horizontal section window entry target point coordinates and the window exit target point coordinates of the target three-dimensional horizontal well and the target average build rate; calculate the double two-dimensional orbit offset angle of the target three-dimensional horizontal well based on the wellhead coordinates, the horizontal section window entry target point coordinates and the window exit target point coordinates of the target three-dimensional horizontal well, the target average build rate, the double two-dimensional orbit offset distance and the double two-dimensional orbit offset point coordinates.

[0070] After obtaining the double two-dimensional orbital offset, the double two-dimensional orbital offset point coordinates of the target three-dimensional horizontal well can be calculated based on the wellhead coordinates, the horizontal section window entry target point coordinates and the window exit target point coordinates of the target three-dimensional horizontal well, and the target average build rate. Then, based on the wellhead coordinates, the horizontal section window entry target point coordinates and the window exit target point coordinates of the target three-dimensional horizontal well, the target average build rate, the double two-dimensional orbital offset and the double two-dimensional orbital offset point coordinates, the double two-dimensional orbital offset angle of the target three-dimensional horizontal well is calculated. The double two-dimensional orbital offset angle is the angle between the offset plane and the pre-target distance plane. For a double two-dimensional horizontal well, its offset angle is within the range of (0°, 180°).

[0071] In some embodiments of the present specification, calculating the double two-dimensional orbital offset angle of the target three-dimensional horizontal well based on the wellhead coordinates, the horizontal section window entry target point coordinates and the window exit target point coordinates of the target three-dimensional horizontal well, the target average build rate, the double two-dimensional orbital offset and the double two-dimensional orbital offset point coordinates may include: calculating the azimuth of the double two-dimensional orbital offset plane of the target three-dimensional horizontal well according to the double two-dimensional orbital offset point coordinates and the wellhead coordinates of the target three-dimensional horizontal well; calculating the double two-dimensional orbital offset angle of the target three-dimensional horizontal well based on the wellhead coordinates, the horizontal section window entry target point coordinates and the window exit target point coordinates of the target three-dimensional horizontal well, the double two-dimensional orbital offset and the double two-dimensional orbital offset point coordinates. By the above method, the azimuth of the double two-dimensional orbital offset plane and the double two-dimensional orbital offset angle can be determined.

[0072] In some embodiments of the present specification, calculating the double two-dimensional orbital offset point coordinates of the target three-dimensional horizontal well based on the wellhead coordinates, the horizontal section window entry target point coordinates and the window exit target point coordinates of the target three-dimensional horizontal well, and the target average build rate may include: calculating the double two-dimensional orbital offset point coordinates of the target three-dimensional horizontal well according to the following formula:

[0073]

[0074] wherein, (X p , Y p , H p ) are the double two-dimensional orbital offset point coordinates, (X0, Y0, H0) are the wellhead coordinates, (X1, Y1, H1) are the horizontal section window entry target point coordinates, and (X2, Y2, H2) are the horizontal section window exit target point coordinates. By the above method, the double two-dimensional orbital offset point coordinates of the target three-dimensional horizontal well can be determined.

[0075] In some embodiments of the present specification, calculating the plane azimuth of the double two-dimensional orbit offset of the target three-dimensional horizontal well based on the double two-dimensional orbit offset point coordinates and the wellhead coordinates of the target three-dimensional horizontal well may include:

[0076]

[0077] Where θ is the plane azimuth of the double two-dimensional orbit offset, (X p , Y p , H p ) are the double two-dimensional orbit offset point coordinates, (X0, Y0, H0) are the wellhead coordinates, (X1, Y1, H1) are the coordinates of the target point for entering the horizontal section window, and (X2, Y2, H2) are the coordinates of the target point for exiting the horizontal section window. By the above method, the plane azimuth of the double two-dimensional orbit offset of the target three-dimensional horizontal well can be determined.

[0078] In some embodiments of the present specification, calculating the double two-dimensional orbit offset angle of the target three-dimensional horizontal well based on the wellhead coordinates, the coordinates of the target point for entering the horizontal section window and the target point for exiting the horizontal section window, the double two-dimensional orbit offset, and the double two-dimensional orbit offset point coordinates of the target three-dimensional horizontal well may include: calculating the foot coordinate point on the azimuth of the well section from the wellhead to the horizontal section based on the wellhead coordinates, the coordinates of the target point for entering the horizontal section window and the target point for exiting the horizontal section window of the target three-dimensional horizontal well; determining the double two-dimensional orbit offset angle based on the wellhead coordinates, the coordinates of the target point for exiting the horizontal section window of the target three-dimensional horizontal well, and the foot coordinate point.

[0079] First, calculate the foot coordinate point (Xo, Yo, Ho) on the azimuth of the well section from the wellhead to the horizontal section. The calculation formula for Xo is:

[0080]

[0081] The calculation formula for Yo is:

[0082]

[0083] If X2 > Xo > X p , or X2 < Xo < X p or Y2 > Yo > Y p , or Y2 > Yo > Y p , then

[0084]

[0085] If Xo > X2 > X p or X2 > X p > Xo or X2 < X p < Xo or Xo < X2 < X p or Yo > Y2 > Y por Y2 > Y p > Yo or Y2 < Y p < Yo or Yo < Y2 < Y p , then

[0086]

[0087] The unit of the double two - dimensional orbital offset angle β described above is meters.

[0088] Step S104, based on the double two - dimensional orbital offset point coordinates and the double two - dimensional orbital offset angle, determine the double two - dimensional wellbore orbit profile of the target three - dimensional horizontal well.

[0089] After determining the double two - dimensional orbital offset point coordinates and the double two - dimensional orbital offset angle, the double two - dimensional wellbore orbit profile of the target three - dimensional horizontal well can be determined, and a double two - dimensional orbital design scheme for the target three - dimensional horizontal well can be obtained.

[0090] In the above - mentioned embodiment, a brand - new double two - dimensional orbital design method is provided. By obtaining the wellhead, the coordinates of the entry window and the exit window target points of the target three - dimensional horizontal well, and the maximum allowable build - up rate in the target - front - distance plane of the three - dimensional horizontal well, the double two - dimensional orbital offset point coordinates and the double two - dimensional orbital offset angle of the three - dimensional horizontal well are calculated. Then, the double two - dimensional wellbore orbit profile of the double two - dimensional horizontal well is quickly determined, avoiding the problems of low design efficiency and unreasonable design caused by repeated trial calculations, and effectively improving the efficiency, rationality and scientific nature of orbital design.

[0091] Each embodiment in this specification is described in a progressive manner. The same or similar parts among the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments. Specifically, reference can be made to the description of the relevant previous embodiments, and details will not be repeated here.

[0092] The above - mentioned specific embodiments of this specification are described. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be executed in a different order from that in the embodiments and still achieve the desired results. Additionally, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In certain embodiments, multi - tasking and parallel processing are also possible or may be advantageous.

[0093] The above - mentioned method will be described below with a specific embodiment. However, it should be noted that this specific embodiment is only for better explaining this specification and does not constitute an improper limitation to this specification.

[0094] In this specific embodiment, a method for determining the double two - dimensional orbital parameters of a three - dimensional horizontal well is provided. Please refer to Figure 2, showing a schematic diagram of the well layout of Platform H40 in a certain oilfield. As Figure 2 shown, the so-called three-dimensional horizontal well trajectory refers to a horizontal well in which the azimuth line 21 of the horizontal section 20 of the wellhead 10 and the horizontal well 2 are not in the same direction, and there is a certain vertical distance from the wellhead 10 to the azimuth line 21 of the horizontal section, which is also called the offset distance H.

[0095] The double two-dimensional horizontal well designs the wellbore trajectory of the three-dimensional horizontal well in two intersecting vertical planes. Each vertical plane contains a two-dimensional trajectory. Among them, the two-dimensional trajectory plane for completing the offset distance is the offset plane, and the two-dimensional trajectory plane for completing the distance before the target is the distance-before-target plane. The offset angle is the angle between the offset plane and the distance-before-target plane. For a two-dimensional horizontal well, the offset angle is 0° or 180°. For a double two-dimensional horizontal well, its offset angle is in the range of (0°, 180°).

[0096] Please refer to Figure 3 , showing a schematic diagram of the double two-dimensional trajectory design in the embodiments of this specification. As Figure 3 shown, the double two-dimensional horizontal well designs the wellbore trajectory of the three-dimensional horizontal well in two intersecting vertical planes CDGH and HCEF. Each vertical plane contains a two-dimensional trajectory. Among them, the two-dimensional trajectory plane CDGH for completing the offset distance is the offset plane, and the two-dimensional trajectory plane HCEF for completing the distance before the target is the distance-before-target plane. The offset angle β is the angle between the offset plane and the distance-before-target plane. For a two-dimensional horizontal well, the offset angle is 0° or 180°. For a double two-dimensional horizontal well, its offset angle is in the range of (0°, 180°). 10 is the wellhead, 20 is the horizontal section, A and B are the entry target point and exit target point of the horizontal section respectively; M is the intersection point of the drilling trajectory in the vertical planes CDGH and HCEF of the well, that is, the offset point M.

[0097] Please refer to Figure 4 , showing a flow chart of the method for determining the double two-dimensional trajectory parameters of a three-dimensional horizontal well in this specific embodiment. As Figure 4 shown, the method for quickly determining the offset angle and offset distance of the double two-dimensional horizontal well includes the following steps.

[0098] Step 1, obtain the wellhead coordinates, the entry window target point coordinates and the exit window target point coordinates of the target three-dimensional horizontal well.

[0099] The wellhead coordinates of the target three-dimensional horizontal are (X0, Y0, H0), the entry window point coordinates are (X1, Y1, H1), and the exit window point coordinates are (X2, Y2, H2).

[0100] The X0, X1, X2 are the coordinates in the east-west direction in the geodetic coordinate system, and the unit is meters.

[0101] The Y0, Y1, and Y2 mentioned above are the coordinates in the north-south direction in the geodetic coordinate system, with the unit of meter.

[0102] The H0, H1, and H2 mentioned above are the vertical depth coordinates starting from the kelly bushing position of the drill rig, with the positive direction being vertically downward, i.e., h0 = 0; it can also be the coordinates with the ground elevation as the reference plane and the positive direction being vertically downward, with the unit of meter; H1 and H2 are approximately equal, and generally the interpolation does not exceed 50m.

[0103] The window entry target point mentioned above is the starting point of the horizontal section of the 3D horizontal well. The window exit target point mentioned above is the ending point of the horizontal section of the 3D horizontal well.

[0104] The coordinates of the window entry and exit target points of the horizontal section are given by the geological reservoir, and the wellhead coordinates X0 and X0 are measured according to the coordinates of the wellhead position arranged on the drilling platform.

[0105] Step 2: Obtain the average build rate γ allowed in the target 3D horizontal well target approach plane.

[0106] In the target approach plane, it is necessary to complete the trajectory control operations of the build section - holding section - build section until entering the horizontal section window. During the drilling process, the average degree of hole inclination increase per 30m well section is the average build rate or average build angle. Affected by requirements such as the size of the casing to be run, the safe passage of the subsequent completion string, and the installation of oil and gas production equipment, there are certain requirements for the maximum build rate allowed in the target approach plane of the 3D horizontal well. Usually, it does not exceed 20° / 30m, generally between 5° / 30m and 15° / 30m, and it needs to be judged according to the wellbore structure of the 3D horizontal well and the requirements of the subsequent completion process, and is determined by the comprehensive analysis of drilling, completion, and oil and gas production engineers. The maximum build rate allowed in the target approach plane of the 3D horizontal well is denoted as γ. max 。

[0107] According to the maximum build rate γ allowed in the target approach plane of the 3D horizontal well max Determine the build rate γ allowed in the target approach plane of the target 3D horizontal well, satisfying the following relationship:

[0108] γ = γ max -a;

[0109] In the formula, the units of γ, γ max , and a are all ° / 30m; a is the actual orbit design correction value.

[0110] The determination method of a is as follows: When γ max ≤5° / 30m, a = 0.5 - 1.5° / 30m; when 5° / 30m < γ max ≤10° / 30m, a = 1 - 2° / 30m; when 10° / 30m < γ maxWhen it is ≤ 15° / 30m, a = 2 - 4° / 30m; when γ max > 15° / 30m, a ≥ 4° / 30m;

[0111] Step 3, analyze the offset H of the three - dimensional horizontal well.

[0112] Calculate the offset H according to the coordinates of the wellhead, the entry window and the exit window target points in the horizontal section. The specific method is as follows:

[0113]

[0114] Where x1 = X1 - X0; y1 = Y1 - Y0; x2 = X2 - X0; y2 = Y2 - Y0;

[0115] Or:

[0116]

[0117] The unit of the described H is meter.

[0118] Step 4, analyze the coordinates of the offset points of the three - dimensional horizontal well's double two - dimensional tracks.

[0119] Calculate the coordinates (X p 、Y p 、H p ) of the offset points according to the coordinates of the wellhead, the entry window target point, the exit window target point and the average build - up rate γ of the horizontal section. The calculation formula of the described X p is as follows:

[0120]

[0121] The calculation formula of the described Y p is as follows:

[0122]

[0123] The calculation formula of the described H p is as follows:

[0124]

[0125] The units of the described X p 、Y p 、H p are meters.

[0126] Step 5, analyze the plane azimuth θ of the offset of the three - dimensional horizontal well's double two - dimensional tracks.

[0127] According to the coordinates of the offset points (X p 、Y p 、H p) Calculate the offset plane azimuth θ of the three-dimensional horizontal well double two-dimensional orbit according to the wellhead coordinates (X0, Y0, H0). The specific method is as follows:

[0128] If X p -X0>0

[0129]

[0130] If X p -X0<0

[0131]

[0132] If X p -X0=0, and Y p -Y0>0,

[0133] θ = 0°

[0134] If X p -X0=0, and Y p -Y0<0,

[0135] θ = 180°

[0136] If X p -X0=0, and Y p = Y0<0, it indicates that the lateral coordinates of the offset point coincide with the lateral coordinates of the wellhead and do not belong to a three-dimensional horizontal well.

[0137] The unit of the said θ is °.

[0138] Step 6, analyze the offset angle β of the three-dimensional horizontal well double two-dimensional orbit.

[0139] Calculate the offset angle according to the wellhead coordinates, the entry window target point of the horizontal section, the exit window target point coordinates, the offset point coordinates and the offset distance, as follows:

[0140] First, calculate the foot coordinate point (Xo, Yo, Ho) on the azimuth of the well section from the wellhead coordinates to the horizontal section. The calculation formula for the said Xo is:

[0141]

[0142] The calculation formula for the said Yo is:

[0143]

[0144] If X2>Xo>X p , or X2<Xo<X p or Y2>Yo>Y p , or Y2>Yo>Y p , then

[0145]

[0146] If Xo > X2 > X p or X2 > X p > Xo or X2 < X p < Xo or Xo < X2 < X p or Yo > Y2 > Y p or Y2 > Y p > Yo or Y2 < Y p < Yo or Yo < Y2 < Y p , then

[0147]

[0148] The unit of the double two - dimensional orbital deflection angle β described above is °.

[0149] Step 7: Generate a double two - dimensional orbital design plan for the three - dimensional horizontal well based on the coordinates of the double two - dimensional orbital deflection points of the three - dimensional horizontal well, the plane azimuth θ of the double two - dimensional orbital offset distance, and the double two - dimensional orbital deflection angle β.

[0150] The method in this embodiment aims to provide a brand - new double two - dimensional orbital design method to solve the problems of low design efficiency and unscientific and unreasonable design caused by trial calculations when designing the wellbore orbit of a double two - dimensional horizontal well using a conventional orbital design method. This method obtains the coordinates of the wellhead, the entry window and the exit window target points of the target three - dimensional horizontal well, obtains the average build - up slope γ allowed by the target - front distance plane of the three - dimensional horizontal well, analyzes the offset distance H of the three - dimensional horizontal well, analyzes the coordinates of the double two - dimensional orbital deflection points of the three - dimensional horizontal well, analyzes the plane azimuth θ of the double two - dimensional orbital offset distance of the three - dimensional horizontal well, and analyzes the double two - dimensional orbital deflection angle β of the three - dimensional horizontal well, thereby quickly determining the plane azimuth, deflection angle and deflection points of the double two - dimensional orbital offset distance of the wellbore orbit of the double two - dimensional horizontal well, and avoiding the problems of low design efficiency and unreasonable design caused by repeated trial calculations. Through the above - mentioned method, the problems of low design efficiency and unscientific and unreasonable design caused by trial calculations when designing the wellbore orbit of a double two - dimensional horizontal well using a conventional orbital design method are solved, the design efficiency of the wellbore orbit is improved, and the rationality and scientificity of the orbital design are ensured.

[0151] Based on the same inventive concept, an embodiment of this specification also provides a device for determining the double two-dimensional orbit parameters of a three-dimensional horizontal well, as described in the following embodiments. Since the principle of the device for determining the double two-dimensional orbit parameters of a three-dimensional horizontal well to solve problems is similar to that of the method for determining the double two-dimensional orbit parameters of a three-dimensional horizontal well, the implementation of the device for determining the double two-dimensional orbit parameters of a three-dimensional horizontal well can refer to the implementation of the method for determining the double two-dimensional orbit parameters of a three-dimensional horizontal well, and the repeated parts will not be elaborated. As used hereinafter, the term "unit" or "module" can be a combination of software and / or hardware that can achieve a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware is also possible and contemplated. Figure 5 is a structural block diagram of the device for determining the double two-dimensional orbit parameters of a three-dimensional horizontal well according to an embodiment of this specification, as Figure 5 shown, including: a first calculation module 501, a first determination module 502, a second calculation module 503, and a second determination module 504. The following describes this structure.

[0152] The first calculation module 501 is used to obtain the wellhead coordinates, the in-window target point coordinates of the horizontal section, and the out-window target point coordinates of the target three-dimensional horizontal well; it is also used to calculate the double two-dimensional orbit offset distance of the target three-dimensional horizontal well based on the wellhead coordinates, the in-window target point coordinates of the horizontal section, and the out-window target point coordinates of the target three-dimensional horizontal well.

[0153] The first determination module 502 is used to determine the target average build rate allowed in the target plane of the target three-dimensional horizontal well according to the maximum build rate allowed in the target plane before the target of the three-dimensional horizontal well.

[0154] The second calculation module 503 is used to calculate the double two-dimensional orbit offset point coordinates of the target three-dimensional horizontal well based on the wellhead coordinates, the in-window target point coordinates of the horizontal section, and the out-window target point coordinates of the target three-dimensional horizontal well and the target average build rate; according to the wellhead coordinates, the in-window target point coordinates of the horizontal section, and the out-window target point coordinates of the target three-dimensional horizontal well, the target average build rate, the double two-dimensional orbit offset distance, and the double two-dimensional orbit offset point coordinates, calculate the double two-dimensional orbit offset angle of the target three-dimensional horizontal well.

[0155] The second determination module 504 is used to determine the double two-dimensional wellbore orbit profile of the target three-dimensional horizontal well based on the double two-dimensional orbit offset point coordinates and the double two-dimensional orbit offset angle.

[0156] In some embodiments of the present specification, the first determination module is specifically configured to: obtain the maximum allowable build rate in the target three-dimensional horizontal well target front distance plane; determine the build rate correction value of the target three-dimensional horizontal well according to the maximum allowable build rate; and determine the target average build rate allowable in the target three-dimensional horizontal well target front distance plane based on the maximum allowable build rate and the build rate correction value.

[0157] In some embodiments of the present specification, the first calculation module is specifically configured to: calculate the double two-dimensional orbit offset distance of the target three-dimensional horizontal well according to the following formula:

[0158]

[0159] where H is the double two-dimensional orbit offset distance, (X0, Y0, H0) is the wellhead coordinate, (X1, Y1, H1) is the horizontal section entry window target point coordinate, and (X2, Y2, H2) is the horizontal section exit window target point coordinate.

[0160] In some embodiments of the present specification, the second calculation module is specifically configured to: calculate the double two-dimensional orbit offset plane azimuth of the target three-dimensional horizontal well according to the double two-dimensional orbit offset point coordinates and the wellhead coordinates of the target three-dimensional horizontal well; and calculate the double two-dimensional orbit offset angle of the target three-dimensional horizontal well based on the wellhead coordinates, horizontal section entry window target point coordinates and exit window target point coordinates, the double two-dimensional orbit offset distance and the double two-dimensional orbit offset point coordinates of the target three-dimensional horizontal well.

[0161] In some embodiments of the present specification, calculating the double two-dimensional orbit offset point coordinates of the target three-dimensional horizontal well according to the wellhead coordinates, horizontal section entry window target point coordinates and exit window target point coordinates and the target average build rate of the target three-dimensional horizontal well includes:

[0162] Calculating the double two-dimensional orbit offset point coordinates of the target three-dimensional horizontal well according to the following formula:

[0163]

[0164]

[0165] where (X p 、Y p 、H p ) are the double two-dimensional orbit offset point coordinates, (X0, Y0, H0) are the wellhead coordinates, (X1, Y1, H1) are the horizontal section entry window target point coordinates, and (X2, Y2, H2) are the horizontal section exit window target point coordinates.

[0166] In some embodiments of the present specification, calculating the double two-dimensional orbit offset plane azimuth of the target three-dimensional horizontal well according to the double two-dimensional orbit offset point coordinates and the wellhead coordinates of the target three-dimensional horizontal well includes:

[0167]

[0168] where θ is the azimuth of the double two-dimensional orbital offset plane, and (X p , Y p , H p ) are the coordinates of the double two-dimensional orbital offset point, (X0, Y0, H0) are the wellhead coordinates, (X1, Y1, H1) are the coordinates of the target point where the horizontal section enters the window, and (X2, Y2, H2) are the coordinates of the target point where the horizontal section exits the window.

[0169] In some embodiments of this specification, based on the wellhead coordinates, the coordinates of the target point where the horizontal section enters the window, the coordinates of the target point where the horizontal section exits the window, the double two-dimensional orbital offset, and the coordinates of the double two-dimensional orbital offset point of the target three-dimensional horizontal well, calculating the double two-dimensional orbital offset angle of the target three-dimensional horizontal well includes:

[0170] Based on the wellhead coordinates, the coordinates of the target point where the horizontal section enters the window, and the coordinates of the target point where the horizontal section exits the window of the target three-dimensional horizontal well, calculating the foot coordinate point on the azimuth of the well section from the wellhead to the horizontal section;

[0171] Based on the wellhead coordinates, the coordinates of the target point where the horizontal section exits the window, and the foot coordinate point of the target three-dimensional horizontal well, determining the double two-dimensional orbital offset angle.

[0172] The embodiments of this specification also provide a computer device, which can specifically refer to Figure 6 the schematic diagram of the composition structure of the computer device for determining the double two-dimensional orbital parameters of a three-dimensional horizontal well provided in the embodiments of this specification. The computer device may specifically include an input device 61, a processor 62, and a memory 63. Among them, the memory 63 is used to store instructions executable by the processor. When the processor 62 executes the instructions, it implements the steps of the method for determining the double two-dimensional orbital parameters of a three-dimensional horizontal well described in any of the above embodiments.

[0173] In this embodiment, the input device may specifically be one of the main devices for information exchange between the user and the computer system. The input device may include a keyboard, a mouse, a camera, a scanner, a light pen, a handwriting input board, a voice input device, etc.; the input device is used to input raw data and programs for processing these data into the computer. The input device may also acquire and receive data transmitted from other modules, units, and devices. The processor may be implemented in any suitable manner. For example, the processor may take the form of, for example, a microprocessor or a processor and a computer-readable medium storing computer-readable program code (such as software or firmware) executable by the (micro)processor, logic gates, switches, an application specific integrated circuit (ASIC), a programmable logic controller, and a form embedded microcontroller, etc. The memory may specifically be a memory device used to store information in modern information technology. The memory may include multiple levels. In a digital system, anything that can store binary data can be a memory; in an integrated circuit, a circuit with a storage function without a physical form is also called a memory, such as RAM, FIFO, etc.; in a system, a storage device with a physical form is also called a memory, such as a memory stick, a TF card, etc.

[0174] In this embodiment, the functions and effects specifically implemented by the computer device may be explained in comparison with other embodiments and will not be elaborated here.

[0175] In the embodiments of this specification, a computer storage medium based on a method for determining the double two-dimensional orbital parameters of a three-dimensional horizontal well is also provided. The computer storage medium stores computer program instructions, and when the computer program instructions are executed, the steps of the method for determining the double two-dimensional orbital parameters of a three-dimensional horizontal well in any of the above embodiments are implemented.

[0176] In this embodiment, the above storage medium includes but is not limited to a random access memory (RAM), a read-only memory (ROM), a cache, a hard disk drive (HDD), or a memory card. The memory may be used to store computer program instructions. The network communication unit may be set according to the standards specified by the communication protocol and is used as an interface for network connection communication.

[0177] In this embodiment, the functions and effects specifically implemented by the program instructions stored in the computer storage medium may be explained in comparison with other embodiments and will not be elaborated here.

[0178] Obviously, those skilled in the art should understand that the various modules or steps of the embodiments of the present specification described above can be implemented by a general-purpose computing device. They can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Optionally, they can be implemented by program codes executable by the computing device. Thus, they can be stored in a storage device and executed by the computing device. And in some cases, the steps shown or described can be executed in a sequence different from that here, or they can be separately fabricated into individual integrated circuit modules, or multiple modules or steps among them can be fabricated into a single integrated circuit module for implementation. In this way, the embodiments of the present specification are not limited to any specific combination of hardware and software.

[0179] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and many applications other than the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this specification should not be determined with reference to the above description, but should be determined with reference to the full scope of the foregoing claims and the equivalents thereof.

[0180] The above are only the preferred embodiments of this specification and are not used to limit this specification. For those skilled in the art, various changes and modifications can be made to the embodiments of this specification. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this specification shall be included within the protection scope of this specification.

Claims

1. A method for determining dual two-dimensional trajectory parameters of a three-dimensional horizontal well, characterized in that: include: Obtain the wellhead coordinates, horizontal section window entry target point coordinates and window exit target point coordinates of the target three-dimensional horizontal well; Based on the wellhead coordinates of the target three-dimensional horizontal well, the horizontal section window entry target point coordinates and the window exit target point coordinates, the dual two-dimensional track offset distance of the target three-dimensional horizontal well is calculated; Determining a target average slope increase rate allowed by the target front distance plane of the target three-dimensional horizontal well according to a maximum slope increase rate allowed by the target front distance plane of the three-dimensional horizontal well; Based on the wellhead coordinates of the target three-dimensional horizontal well, the horizontal section window-entry target point coordinates and the window-exit target point coordinates, and the target average increasing slope, the double two-dimensional orbit offset point coordinates of the target three-dimensional horizontal well are calculated; based on the wellhead coordinates of the target three-dimensional horizontal well, the horizontal section window-entry target point coordinates and the window-exit target point coordinates, the target average increasing slope, the double two-dimensional orbit offset distance, and the double two-dimensional orbit offset point coordinates, the double two-dimensional orbit offset angle of the target three-dimensional horizontal well is calculated; Based on the dual-two-dimensional trajectory offset point coordinates and the dual-two-dimensional trajectory offset angle, the dual-two-dimensional wellbore trajectory profile of the target three-dimensional horizontal well is determined.

2. The method for determining dual two-dimensional trajectory parameters of a three-dimensional horizontal well according to claim 1, characterized in that: Based on the wellhead coordinates of the target three-dimensional horizontal well, the horizontal section window entry target point coordinates and the window exit target point coordinates, the dual two-dimensional track offset distance of the target three-dimensional horizontal well is calculated, including: The dual 2D track offset of the target 3D horizontal well is calculated according to the following formula: Among them, H is the dual two-dimensional track offset, (X0, Y0, H0) is the wellhead coordinate, (X1, Y1, H1) is the horizontal section window entry target coordinate, (X2, Y2, H2) is the horizontal section window exit target coordinate.

3. The method for determining dual two-dimensional trajectory parameters of a three-dimensional horizontal well according to claim 1, characterized in that: Determining the target average slope increase rate allowed by the target front distance plane of the target three-dimensional horizontal well according to the maximum slope increase rate allowed by the target front distance plane of the three-dimensional horizontal well, including: Obtain the maximum slope increase rate allowed by the target front distance plane of a three-dimensional horizontal well; Determining a slope increase correction value of the target three-dimensional horizontal well according to the maximum slope increase; Based on the maximum slope increase rate and the slope increase rate correction value, a target average slope increase rate allowed by the target front distance plane of the target three-dimensional horizontal well is determined.

4. The method for determining dual two-dimensional trajectory parameters of a three-dimensional horizontal well according to claim 1, characterized in that: Calculating the dual two-dimensional orbit offset angle of the target three-dimensional horizontal well according to the wellhead coordinates of the target three-dimensional horizontal well, the horizontal section window entry target point coordinates and window exit target point coordinates, the target average slope increase rate, the dual two-dimensional orbit offset distance and the dual two-dimensional orbit offset point coordinates, including: Calculate the coordinates of the double two-dimensional trajectory offset points of the target three-dimensional horizontal well according to the wellhead coordinates of the target three-dimensional horizontal well, the horizontal section window entry target point coordinates and the window exit target point coordinates and the target average increasing slope; Calculate the double-two-dimensional track offset plane azimuth of the target three-dimensional horizontal well according to the double-two-dimensional track offset point coordinates of the target three-dimensional horizontal well and the wellhead coordinates; Based on the wellhead coordinates of the target three-dimensional horizontal well, the horizontal section window entry target point coordinates and window exit target point coordinates, the dual two-dimensional orbit offset distance and the dual two-dimensional orbit offset point coordinates, the dual two-dimensional orbit offset angle of the target three-dimensional horizontal well is calculated.

5. The method for determining dual two-dimensional trajectory parameters of a three-dimensional horizontal well according to claim 4, characterized in that: According to the wellhead coordinates of the target three-dimensional horizontal well, the horizontal section window entry target point coordinates and the window exit target point coordinates and the target average increasing slope, the dual two-dimensional trajectory offset point coordinates of the target three-dimensional horizontal well are calculated, including: The coordinates of the dual 2D trajectory offset points of the target 3D horizontal well are calculated according to the following formula: Among them, (X p , Y p , H p ) are the coordinates of the double two-dimensional track offset point, (X0, Y0, H0) are the wellhead coordinates, (X1, Y1, H1) are the horizontal section window entry target coordinates, and (X2, Y2, H2) are the horizontal section window exit target coordinates.

6. The method for determining dual two-dimensional trajectory parameters of a three-dimensional horizontal well according to claim 4, characterized in that: Calculating the double two-dimensional track offset plane azimuth of the target three-dimensional horizontal well according to the double two-dimensional track offset point coordinates of the target three-dimensional horizontal well and the wellhead coordinates, including: Where θ is the azimuth of the double 2D orbit offset plane, (X p , Y p , H p ) are the coordinates of the double two-dimensional track offset point, (X0, Y0, H0) are the wellhead coordinates, (X1, Y1, H1) are the horizontal section window entry target coordinates, and (X2, Y2, H2) are the horizontal section window exit target coordinates.

7. The method for determining dual two-dimensional trajectory parameters of a three-dimensional horizontal well according to claim 4, characterized in that: Based on the wellhead coordinates of the target three-dimensional horizontal well, the horizontal section window entry target point coordinates and window exit target point coordinates, the dual two-dimensional track offset distance and the dual two-dimensional track offset point coordinates, the dual two-dimensional track offset angle of the target three-dimensional horizontal well is calculated, including: Based on the wellhead coordinates of the target three-dimensional horizontal well, the horizontal section window entry target point coordinates and the window exit target point coordinates, the perpendicular foot coordinate point from the wellhead coordinates to the horizontal section well section azimuth is calculated; Based on the wellhead coordinates of the target three-dimensional horizontal well, the horizontal section window target point coordinates and the vertical foot coordinate point, the dual two-dimensional track deviation angle is determined.

8. A device for determining dual two-dimensional trajectory parameters of a three-dimensional horizontal well, characterized in that: include: The first calculation module is used to obtain the wellhead coordinates, the horizontal section window entry target point coordinates and the window exit target point coordinates of the target three-dimensional horizontal well; It is also used to calculate the dual two-dimensional track offset of the target three-dimensional horizontal well based on the wellhead coordinates, the horizontal section window entry target point coordinates and the window exit target point coordinates of the target three-dimensional horizontal well; The first determination module is used to determine the target average slope increase rate allowed by the target front distance plane of the target three-dimensional horizontal well according to the maximum slope increase rate allowed by the target front distance plane of the three-dimensional horizontal well; The second calculation module is used to calculate the double two-dimensional orbit offset point coordinates of the target three-dimensional horizontal well based on the wellhead coordinates of the target three-dimensional horizontal well, the horizontal section window-entry target point coordinates and the window-exit target point coordinates, and the target average increasing slope; and is also used to calculate the double two-dimensional orbit offset angle of the target three-dimensional horizontal well according to the wellhead coordinates of the target three-dimensional horizontal well, the horizontal section window-entry target point coordinates and the window-exit target point coordinates, the target average increasing slope, the double two-dimensional orbit offset distance and the double two-dimensional orbit offset point coordinates; The second determination module is used to determine the dual-two-dimensional wellbore trajectory profile of the target three-dimensional horizontal well based on the dual-two-dimensional trajectory offset point coordinates and the dual-two-dimensional trajectory offset angle.

9. A computer device, characterized in that: The method comprises a processor and a memory for storing processor-executable instructions, wherein the processor implements the steps of the method according to any one of claims 1 to 7 when executing the instructions.

10. A computer-readable storage medium having computer instructions stored thereon, characterized in that: When the instructions are executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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