Directional rotary steering tool system and control method

Abstract

The embodiment of the invention provides a directional rotary steering tool system and a control method. The method comprises the steps that underground track data and stratum data are obtained, then a tool face angle and a bending angle are determined on the basis of the track data and the stratum data, and a directional rotary steering tool is controlled to conduct drilling according to the tool face angle and the bending angle. According to the method, the tool face angle and the structure bending angle are dynamically adjusted, the problem that the bending angle of an executing mechanism in an existing directional rotary steering tool is fixed and cannot be adjusted according to actual requirements is effectively solved, and the situation that the torque is too large due to the fact that the bending angle is not matched in the operation process is avoided. Therefore, the overall service life of the directional rotary steering tool is remarkably prolonged, and the working efficiency and reliability are improved.

Description

Technical Field

[0001] The present application relates to the field of intelligent drilling, and in particular to a directional rotary steerable tool system and a control method. Background Art

[0002] With the continuous deepening of unconventional oil and gas exploration and development, directional rotary steerable tools have gradually become the leaders in the drilling field due to their advantages such as high wellbore cleanliness, smooth trajectory, strong wellbore extension capability and high deflection rate in soft formations.

[0003] The existing directional rotary steerable tool is composed of a central control system, a motor system, an actuator and other components. These components work together to accurately control the drilling trajectory and ensure that the drilling operation is carried out efficiently and accurately.

[0004] However, the bending angle of the actuator in the existing directional rotary steerable tool is fixed and cannot be adjusted according to actual needs. This limitation causes the actuator to bear excessive torque during operation, thereby shortening the overall service life of the directional rotary steerable tool. Summary of the invention

[0005] The directional rotary steering tool system and control method provided in the embodiments of the present application are used to solve the problem that the bending angle of the actuator in the existing directional rotary steering tool is fixed and cannot be adjusted according to actual needs.

[0006] In a first aspect, an embodiment of the present application provides a control method for a directional rotary steerable tool, comprising:

[0007] Acquiring trajectory data and formation data downhole, wherein the trajectory data includes well inclination, azimuth and tool face;

[0008] Determining a tool face angle and a bend angle of the directional rotary steerable tool based on the trajectory data and the formation data;

[0009] The directional rotary steerable tool is controlled to perform drilling according to the tool face angle and the bend angle.

[0010] In a possible implementation, determining the tool face angle and the bend angle of the directional rotary steerable tool based on the trajectory data and the formation data includes:

[0011] Determining a trajectory adjustment value of the directional rotary steerable tool based on the trajectory data and the formation data;

[0012] Based on the trajectory adjustment value, a tool face angle and a bend angle of the directional rotary steerable tool are determined.

[0013] In a possible implementation, determining the tool face angle and the bend angle of the directional rotary steerable tool based on the trajectory adjustment value includes:

[0014] When the trajectory adjustment value is zero, the tool face angle of the directional rotary steerable tool is determined to be the current tool face angle, and the bending angle of the directional rotary steerable tool is zero.

[0015] In a possible implementation, determining the bending angle of the directional rotary steerable tool based on the trajectory adjustment value includes:

[0016] Determining a target value of a bend angle of the directional rotary steering tool based on the trajectory adjustment value;

[0017] Based on the bend angle target value and a preset bend angle margin, the bend angle of the directional rotary steering tool is determined.

[0018] In a possible implementation, determining the tool face angle and the bend angle of the directional rotary steerable tool based on the trajectory data and the formation data includes:

[0019] The deviation value between the trajectory data and the target trajectory is determined, and based on the deviation value and the formation data, the tool face angle and the bend angle of the directional rotary steering tool are determined.

[0020] In a second aspect, an embodiment of the present application provides a system of a pointing rotary steerable tool, comprising: a ground control system, an underground control system, a motor system, and an actuator;

[0021] The aboveground control system is used to obtain trajectory data and formation data in the well, wherein the trajectory data includes well inclination, azimuth and tool face; determine the trajectory adjustment value of the directional rotary steerable tool based on the trajectory data and the formation data; and send a trajectory control instruction to the underground control system, wherein the trajectory control instruction includes the trajectory adjustment value;

[0022] The underground control system is used to determine the tool face angle and the bend angle of the actuator based on the trajectory adjustment value, and send the tool face angle and the bend angle to the motor system to control the drilling of the actuator.

[0023] In a third aspect, an embodiment of the present application provides a pointing rotary steerable tool system, including: a ground control system, an underground control system, a motor system, and an actuator;

[0024] The aboveground control system is used to determine the tool face angle and the bend angle of the directional rotary steerable tool based on the trajectory data and formation data downhole, the trajectory data including the well inclination, azimuth and tool face; send a trajectory control instruction to the underground control system, the trajectory control instruction including the tool face angle and the bend angle;

[0025] The underground control system is used to send the tool face angle and the bend angle to the motor system to control the drilling of the actuator.

[0026] In a possible implementation, the motor system includes a tool face angle motor and a bending angle motor;

[0027] The underground control system is used to send the tool face angle to the tool face angle motor, and send the bend angle to the bend angle motor.

[0028] In a possible implementation, the above-ground control system includes an above-ground communication unit; the underground control system includes an underground communication unit;

[0029] The underground communication unit is used to obtain the trajectory data and the stratum data, and send the trajectory data and the stratum data to the ground communication unit.

[0030] In a possible implementation, the above-ground communication unit is used to send the trajectory instruction to the underground communication unit.

[0031] In a fourth aspect, an embodiment of the present application provides a control device for a directional rotary steering tool, comprising:

[0032] An acquisition module, used to acquire trajectory data and formation data downhole, wherein the trajectory data includes well inclination, azimuth and tool face;

[0033] A determination module, configured to determine a tool face angle and a bend angle of the directional rotary steerable tool based on the trajectory data and the formation data;

[0034] A control module is used to control the directional rotary steering tool to drill according to the tool face angle and the bend angle.

[0035] In a possible implementation manner, the determination module is further used to determine a trajectory adjustment value of the directional rotary steerable tool based on the trajectory data and the formation data;

[0036] The determination module is specifically used to determine the tool face angle and bend angle of the directional rotary steering tool based on the trajectory adjustment value.

[0037] In a possible implementation, the determination module is further used to determine that the tool face angle of the directional rotary steerable tool is the current tool face angle, and the bending angle of the directional rotary steerable tool is zero when the trajectory adjustment value is zero.

[0038] In a possible implementation manner, the determination module is further used to determine a target value of a bending angle of the directional rotary steerable tool based on the trajectory adjustment value;

[0039] The determination module is specifically used to determine the bending angle of the directional rotary steering tool based on the bending angle target value and the preset bending angle margin.

[0040] In a possible implementation, the determination module is specifically used to determine a deviation value between the trajectory data and the target trajectory, and determine a tool face angle and a bend angle of the directional rotary steerable tool based on the deviation value and the formation data.

[0041] In a fifth aspect, an embodiment of the present application provides a control device for a directional rotary steering tool, including: a memory, a processor;

[0042] The memory stores computer-executable instructions;

[0043] The processor executes the computer-executable instructions stored in the memory, so that the processor executes the above first aspect and / or various possible implementations of the first aspect.

[0044] In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium, in which computer-readable storage medium is stored computer execution instructions, and when the computer execution instructions are executed by a processor, they are used to implement the first aspect above and / or various possible implementation methods of the first aspect.

[0045] In a seventh aspect, an embodiment of the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the above first aspect and / or various possible implementation methods of the first aspect.

[0046] The directional rotary steerable tool system and control method provided in the embodiment of the present application obtains the trajectory data and formation data in the well, and then determines the tool face angle and the bend angle based on the trajectory data and the formation data, and controls the directional rotary steerable tool to drill accordingly. This method effectively solves the problem that the bend angle of the actuator in the existing directional rotary steerable tool is fixed and cannot be adjusted according to actual needs by dynamically adjusting the tool face angle and the structural bend angle, avoids excessive torque caused by the mismatch of the bend angle during operation, thereby significantly extending the overall service life of the directional rotary steerable tool and improving the operation efficiency and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0048] Figure 1 A schematic diagram of a scene of a control method for a directional rotary steerable tool provided in the present application;

[0049] Figure 2 Schematic diagram of the control method of the directional rotary steerable tool provided in this application Figure 1 ;

[0050] Figure 3 Schematic diagram of the control method of the directional rotary steerable tool provided in this application Figure 2 ;

[0051] Figure 4 Schematic diagram of the control method of the directional rotary steerable tool provided in this application Figure 3 ;

[0052] Figure 5 Schematic diagram of the system composition of the control system of the directional rotary steerable tool provided in this application Figure 1 ;

[0053] Figure 6 Schematic diagram of the system composition of the control system of the directional rotary steerable tool provided in this application Figure 2 ;

[0054] Figure 7 A schematic diagram of the structure of a control device for a directional rotary steering tool provided in the present application;

[0055] Figure 8 A schematic structural diagram of the control device of the directional rotary steering tool provided in this application.

[0056] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0057] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0058] First, the terms involved in this application are explained.

[0059] Well inclination: refers to the angle between the borehole axis and the vertical line of the ground surface during the drilling process. It reflects the degree of inclination of the wellbore in the underground space. During the drilling process of the directional rotary steerable tool, well inclination can directly affect the trajectory of the wellbore and the drilling efficiency. By accurately controlling the well inclination, it can be ensured that the wellbore extends along the predetermined trajectory and avoids deviation from the target area.

[0060] Azimuth: refers to the angle between the projection of the borehole axis on the horizontal plane and a specific direction (such as geographic north). It is used to describe the directionality of the borehole in the underground space. In the drilling process of the directional rotary steerable tool, accurate control of the azimuth is crucial for geological steering and trajectory control. By monitoring and adjusting the azimuth, it can be ensured that the wellbore moves along the predetermined geological structure direction, improving the accuracy and efficiency of drilling.

[0061] Tool face: refers to the specific position and direction of the actuator relative to the wellbore axis. During the drilling process of the directional rotary steerable tool, the adjustment of the tool face is the key to achieving wellbore trajectory control. By changing the angle of the tool face, the inclination direction and drilling trajectory of the actuator in the directional rotary steerable tool can be adjusted, thereby achieving precise control of the wellbore trajectory.

[0062] With the continuous deepening of unconventional oil and gas exploration and development in recent years, the advantages of rotary steerable technology have gradually emerged and become increasingly prominent. Compared with the traditional push-to-pull technology, the pointing rotary steerable technology has shown significant progress. It can not only achieve the cleaning of the wellbore and the smoothness of the trajectory, but also has strong wellbore extension capabilities and high deflection rate in soft formations.

[0063] The directional rotary steerable tool is a highly integrated system, whose core components include the central control system, the control system of the bend angle adjustment motor, the control system of the tool face angle adjustment motor, and the actuator. As the command center of the entire directional rotary steerable tool, the central control system can ensure that the drilling operation is carried out according to the predetermined plan. The control system of the bend angle adjustment motor focuses on controlling the operation of the bend angle adjustment motor. By accurately adjusting the bending angle of the drill bit, the curvature of the drilling path is changed to adapt to complex and changeable geological conditions. The control system of the tool face angle adjustment motor is responsible for controlling the operation of the tool face angle adjustment motor. By adjusting the rotation direction of the drill bit, it ensures that the drilling tool can move forward steadily along the predetermined trajectory. The actuator is the final executor of these control instructions. According to the instructions of the underground control system, it realizes the precise control of the drilling trajectory through the synergy of the bend angle adjustment and tool face angle adjustment motors.

[0064] However, the bending angle of the actuator in the existing directional rotary steerable tool is fixed and cannot be adjusted according to actual needs. This limitation causes the actuator to bear excessive torque during operation, thereby shortening the overall service life of the directional rotary steerable tool.

[0065] Therefore, how to solve the problem that the bending angle of the actuator is fixed and cannot be changed is a problem that needs to be solved urgently.

[0066] In response to the above problems, the present application provides a control method for a directional rotary steering tool. Figure 1 This is a schematic diagram of a scene of a control method for a directional rotary steerable tool provided in this application. Figure 1 As shown. The ground control device 01 includes a built-in ground control system 11, and the pointing rotary steering tool 02 is equipped with an underground communication unit 21, an underground control system 22, a motor system 23 and an actuator 24. Through the ground communication unit 11 corresponding to the ground control system 11, the trajectory control command can be sent to the underground communication unit 21 corresponding to the underground control system 21. At the same time, the underground control system 21 can also transmit the collected trajectory data and formation data back to the ground communication unit 11 corresponding to the ground control system 11 through its corresponding underground communication unit 21.

[0067] Once the underground control system 22 receives the trajectory control instruction sent by the ground control system 11, it will forward the instruction to the motor system 22 to ensure that the motor system 22 can accurately execute the corresponding trajectory control instruction, so that the actuator 24 can accurately perform drilling work.

[0068] The present application provides a control method for a directional rotary steerable tool, which obtains trajectory data and formation data in the well, and then determines the tool face angle and bend angle based on the trajectory data and formation data, and controls the directional rotary steerable tool to drill accordingly. This method dynamically adjusts the tool face angle and structural bend angle, effectively solving the problem that the bend angle of the actuator in the existing directional rotary steerable tool is fixed and cannot be adjusted according to actual needs, avoiding excessive torque caused by incompatible bend angles during operation, thereby significantly extending the overall service life of the directional rotary steerable tool and improving operation efficiency and reliability.

[0069] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0070] Figure 2Schematic diagram of the control method of the directional rotary steerable tool provided in this application Figure 1 ,like Figure 2 As shown, the method includes:

[0071] S201, acquiring trajectory data and formation data downhole, wherein the trajectory data includes well inclination, azimuth and tool face.

[0072] The formation data include but are not limited to formation gamma value.

[0073] The formation gamma value refers to the intensity of gamma rays emitted by radioactive elements in the formation. The formation gamma value is used to determine the lithology, oil and gas content, and reservoir characteristics of the formation. During the drilling process of the directional rotary steerable tool, by measuring the formation gamma value, the distribution information of the underground rock formation can be obtained, providing an analytical basis for drilling decisions.

[0074] The purpose of acquiring the trajectory data and formation data in the well in this step is to determine the drilling trajectory actually formed by the directional rotary steering tool during the drilling process and the characteristics of the underground rock formation.

[0075] It can be understood that the trajectory data can reflect the trajectory of the actuator of the directional rotary steerable tool in the well, including key parameters such as well inclination, azimuth and tool face. These trajectory parameters are important basis for adjusting the drilling strategy.

[0076] The formation data, especially the formation gamma value, provides key information about the distribution, lithology, oil and gas content and reservoir characteristics of underground rock formations. The formation gamma value, as a measure of the intensity of gamma rays emitted by radioactive elements in the formation, is an important indicator for judging the characteristics of the formation.

[0077] Therefore, by obtaining the trajectory data and formation data downhole, a direct and reliable analysis basis can be provided for drilling decisions, thereby ensuring the efficiency, safety and smooth progress of drilling operations.

[0078] The execution timing of acquiring the trajectory data and formation data in the well in this step may be, for example, real-time acquisition or acquisition according to a preset cycle, and this application does not impose any special restrictions on this.

[0079] S202: Determine the tool face angle and bend angle of the directional rotary steerable tool based on the trajectory data and the formation data.

[0080] The tool face angle refers to the specific position and direction of the actuator of the directional rotary steerable tool relative to the wellbore axis. By adjusting the tool face angle, the inclination direction of the actuator and the drilling trajectory can be adjusted to ensure that the wellbore extends according to the predetermined drilling trajectory.

[0081] The bending angle refers to the bending angle of the actuator of the steerable rotary steerable tool during the drilling process. By adjusting the bending angle, the inclination of the actuator and the drilling trajectory can be changed, thereby achieving precise control of the wellbore.

[0082] It is understandable that during the drilling process, the distribution and characteristics of the underground rock formations are often very complex. At the same time, due to the complex distribution characteristics of the underground rock formations, the directional rotary steerable tool may not be able to work according to the expected trajectory during the drilling process.

[0083] Therefore, by determining the tool face angle and bend angle through real-time acquired trajectory data and formation data, the system can flexibly adjust the posture and drilling trajectory of the directional rotary steerable tool according to actual conditions, thereby ensuring that the wellbore can accurately pass through the target formation while reducing the risks and costs during the drilling process.

[0084] S203, controlling the directional rotary steerable tool to perform drilling according to the tool face angle and the bend angle.

[0085] The purpose of this step is to adjust the posture of the actuator in real time and accurately when the directional rotary steerable tool is in a drilling working state.

[0086] It is understandable that the tool face angle directly reflects the inclination direction of the tool in the well. When the tool face angle changes, it means that the inclination direction of the directional rotary steerable tool also changes, which will directly affect the direction of the drilling trajectory.

[0087] The bend angle reflects the degree of inclination that a directional rotary steerable tool can produce during drilling. The size of the bend angle determines the degree to which the directional rotary steerable tool deviates from the vertical direction during drilling, thereby affecting the curvature and shape of the drilling trajectory.

[0088] Therefore, by controlling the tool face angle and bend angle of the directional rotary steerable tool, the posture of the directional rotary steerable tool in the well can be dynamically adjusted, thereby achieving precise control of the drilling trajectory.

[0089] The control method of the directional rotary steerable tool provided in the embodiment of the present application first obtains the trajectory data and formation data downhole. Then, based on these real-time data, the tool face angle and bend angle of the directional rotary steerable tool are determined to flexibly adjust the drilling trajectory of the directional rotary steerable tool. Compared with the problem in the prior art that the bend angle of the actuator is fixed and cannot be adjusted according to actual needs, this method effectively avoids the situation where the actuator is subjected to excessive torque during operation by dynamically adjusting the bend angle and tool face angle, thereby significantly extending the overall service life of the directional rotary steerable tool. At the same time, the method also realizes precise control of the drilling trajectory, improves the efficiency and safety of drilling operations, and ensures that the wellbore can accurately and efficiently pass through the target formation.

[0090] Figure 3 Schematic diagram of the control method of the directional rotary steerable tool provided in this application Figure 2 ,like Figure 3 As shown, in this embodiment Figure 2 Based on the embodiment, a control method of a directional rotary steering tool is described in detail, and the method includes:

[0091] S301, acquiring trajectory data and formation data downhole, wherein the trajectory data includes well inclination, azimuth and tool face.

[0092] The explanation of step S301 refers to the explanation of step S201 and will not be repeated here.

[0093] S302: Determine a trajectory adjustment value of the directional rotary steerable tool based on the trajectory data and the formation data.

[0094] The trajectory adjustment value includes but is not limited to zero and non-zero numbers. If the trajectory adjustment value is zero, it indicates that the drilling trajectory of the directional rotary steering tool does not deviate from the predetermined drilling trajectory. If the trajectory adjustment value is a non-zero number, it indicates that the drilling trajectory of the directional rotary steering tool deviates from the predetermined drilling trajectory.

[0095] The purpose of this step is to comprehensively determine whether the drilling trajectory of the directional rotary steerable tool deviates from the predetermined drilling trajectory based on the acquired trajectory data and formation data.

[0096] It is understandable that during the drilling process, in order to ensure that the wellbore can extend according to the predetermined target and path, a tool face angle and a bend angle are usually pre-set according to geological exploration data and drilling design requirements. These two parameters jointly determine the drilling direction and inclination of the directional rotary steerable tool, and based on them, the predetermined drilling trajectory can be determined.

[0097] However, due to the extremely complex and changeable distribution and characteristics of underground rock formations, such as uneven formation hardness, the existence of faults, the development of cracks, etc., these factors may affect the drilling trajectory of the directional rotary steerable tool. Therefore, in the actual drilling process, the drilling trajectory may deviate from the predetermined path.

[0098] Therefore, in order to timely discover and correct such deviations, it is necessary to analyze the acquired trajectory data and formation data to determine whether the drilling trajectory of the directional rotary steerable tool deviates from the predetermined drilling trajectory.

[0099] S303. Determine the tool face angle and bend angle of the directional rotary steering tool based on the trajectory adjustment value.

[0100] The purpose of this step is to adjust the tool face angle and the bend angle of the directional rotary steerable tool according to the trajectory adjustment value to correct the deviation of the drilling trajectory.

[0101] It can be understood that the trajectory adjustment value, as a quantitative indicator of whether the drilling trajectory needs to be adjusted, provides a clear basis for adjusting the attitude of the directional rotary steerable tool. Therefore, by using the trajectory adjustment value as a determining factor, the target values ​​to which the tool face angle and the bend angle should be adjusted can be determined.

[0102] Optionally, the present application provides a specific implementation method for determining the tool face angle and bend angle of a pointing rotary steering tool based on a trajectory adjustment value, including: when the trajectory adjustment value is zero, determining that the tool face angle of the pointing rotary steering tool is the current tool face angle, and the bend angle of the pointing rotary steering tool is zero.

[0103] It can be understood that when the trajectory adjustment value is zero, it means that the drilling trajectory of the directional rotary steerable tool does not deviate from the predetermined drilling trajectory. Therefore, in this case, there is no need to change the current tool face angle, and it should be maintained at the current value.

[0104] At the same time, in order to ensure that the drilling trajectory can continue to move forward in a straight line without any unnecessary turns, the bend angle of the directional rotary steerable tool needs to be set to zero. This means that when the directional rotary steerable tool continues to drill, its movement trajectory will not be changed due to the effect of the bend angle, thereby ensuring that the drilling operation can proceed smoothly.

[0105] Optionally, the present application provides a specific implementation method for determining the bending angle of a pointing rotary steering tool based on a trajectory adjustment value, including: determining the bending angle target value of the pointing rotary steering tool based on the trajectory adjustment value; determining the bending angle of the pointing rotary steering tool based on the bending angle target value and a preset bending angle margin.

[0106] The target bend angle value is a bend angle value that needs to be reset during the drilling process of the directional rotary steering tool in order to correct the deviation of the drilling trajectory from the predetermined path.

[0107] The preset bending angle margin refers to a safety value that is additionally set after the bending angle target value of the pointing rotary steering tool is determined in order to cope with factors such as errors, uncertainties or changes in geological conditions that may occur in actual operations.

[0108] The purpose of determining the target value of the bend angle of the directional rotary steerable tool based on the trajectory adjustment value is to recalculate and set a new bend angle value to guide the directional rotary steerable tool to adjust its drilling direction and inclination. The purpose of determining the bend angle of the directional rotary steerable tool based on the bend angle target value and the preset bend angle margin is to set a bend angle value for the directional rotary steerable tool that meets the target requirements and has a certain degree of flexibility in actual operation.

[0109] It is understandable that during the drilling process, when it is determined that the drilling trajectory of the directional rotary steerable tool deviates from the predetermined path, a new bend angle, i.e., the bend angle target value, will be calculated and determined based on the trajectory adjustment value. This bend angle target value is reset to correct the deviation of the drilling trajectory, and it guides the directional rotary steerable tool to adjust its drilling direction and inclination. Subsequently, based on the determination of the bend angle target value, the preset bend angle margin will also be considered. This margin is an additional safety value set to cope with factors such as errors, uncertainties, or changes in geological conditions that may occur in actual operations.

[0110] By combining the target bend angle value and the preset bend angle margin, the bend angle of the directional rotary steerable tool is finally determined. This bend angle value not only meets the target requirements but also has a certain degree of flexibility to ensure the stability and accuracy of the drilling operation.

[0111] S304, controlling the directional rotary steerable tool to perform drilling according to the tool face angle and the bend angle.

[0112] The explanation of step S304 refers to the explanation of step S203 and will not be repeated here.

[0113] The control method of the pointing rotary steerable tool provided in the embodiment of the present application first obtains the trajectory data and formation data of the well, including key information such as well inclination, azimuth and tool face. Subsequently, based on these data, the trajectory adjustment value of the pointing rotary steerable tool can be intelligently determined, and the required tool face angle and bend angle can be calculated accordingly. Finally, by precisely controlling the pointing rotary steerable tool to drill according to these angles, flexible control of the drilling trajectory is achieved. This method successfully solves the problem in the prior art that the bend angle of the actuator of the pointing rotary steerable tool is fixed and cannot be adjusted according to actual needs, avoids the actuator from being subjected to excessive torque due to improper bend angle, significantly extends the overall service life of the pointing rotary steerable tool, and thus improves the accuracy and efficiency of drilling operations, thereby enhancing the reliability and flexibility of the drilling process.

[0114] Figure 4 Schematic diagram of the control method of the directional rotary steerable tool provided in this application Figure 3 ,like Figure 4 As shown, in this embodiment Figure 2 Based on the embodiment, a control method of a directional rotary steering tool is described in detail, and the method includes:

[0115] S401, acquiring trajectory data and formation data downhole, wherein the trajectory data includes well inclination, azimuth and tool face.

[0116] The explanation of step S401 refers to the explanation of step S201 and will not be repeated here.

[0117] S402, determining a deviation value between the trajectory data and the target trajectory, and determining a tool face angle and a bend angle of the directional rotary steerable tool based on the deviation value and the formation data.

[0118] Among them, the target trajectory refers to the ideal path that is pre-set and expected to be strictly followed by the pointing rotary steerable tool during the drilling process based on geological exploration data and engineering design requirements.

[0119] The deviation value may refer to, for example, the degree of deviation between the trajectory data collected during the drilling process and the preset target trajectory; it may also refer to the specific numerical difference between the trajectory data collected during the drilling process and the preset target trajectory. This application does not impose any special restrictions on this.

[0120] The purpose of determining the deviation value of the trajectory data and the target trajectory in this step is to quantify the deviation between the actual drilling trajectory and the target trajectory. The purpose of determining the tool face angle and bend angle of the directional rotary steerable tool based on the deviation value and formation data is to correct the deviation of the directional rotary steerable tool during the drilling process so that the directional rotary steerable tool can resume operation along the target trajectory.

[0121] It can be understood that when the trajectory data and formation data of the well are obtained, the trajectory data (such as well inclination, azimuth, etc.) collected during the actual drilling process are first compared and analyzed with the target trajectory set in advance according to the geological exploration data and engineering design requirements to quantify the degree of deviation or specific numerical difference between the two, that is, the deviation value. This deviation value not only reflects the difference between the actual effect of the current drilling operation and the target planning, but also provides a reference for the subsequent trajectory adjustment. Then, based on this deviation value and real-time formation data (such as lithology, hardness, etc.), the system can calculate the tool face angle and bend angle that need to be adjusted for the pointing rotary steering tool, so as to correct the deviation during the drilling process by adjusting the posture and drilling direction of the pointing rotary steering tool, so that the actuator of the pointing rotary steering tool can be re-operated efficiently and accurately along the target trajectory.

[0122] S403, controlling the directional rotary steering tool to perform drilling according to the tool face angle and the bend angle.

[0123] The explanation of step S403 refers to the explanation of step S203 and will not be repeated here.

[0124] The control method of the pointing rotary steerable tool provided in the embodiment of the present application first obtains the trajectory data and formation data of the well, including key information such as well inclination, azimuth and tool face. Then, based on these data, the system can intelligently determine the deviation value between the actual trajectory and the target trajectory, and accurately calculate the tool face angle and bend angle that need to be adjusted for the pointing rotary steerable tool according to the deviation value and the formation data. Finally, by controlling the pointing rotary steerable tool to drill according to these angles, flexible and precise control of the drilling trajectory is achieved. This method not only successfully solves the problem that the bend angle of the actuator of the pointing rotary steerable tool in the prior art is fixed and cannot be adjusted according to actual needs by dynamically adjusting the tool face angle and bend angle, but also avoids the actuator from being subjected to excessive torque due to improper bend angle, thereby significantly extending the overall service life of the pointing rotary steerable tool.

[0125] Figure 5 Schematic diagram of the system composition of the control system of the directional rotary steerable tool provided in this application Figure 1 ,like Figure 5 As described above, the control system 500 of the pointing rotary steerable tool provided in this embodiment includes: a ground control system 501 , an underground control system 502 , a motor system 503 and an actuator 504 .

[0126] The ground control system 501 is used to obtain trajectory data and formation data in the well, the trajectory data including well inclination, azimuth and tool face; based on the trajectory data and formation data, determine the trajectory adjustment value of the directional rotary steering tool; send trajectory control instructions to the underground control system 502, the trajectory control instructions including the trajectory adjustment value; the underground control system 502 is used to determine the tool face angle and bend angle of the actuator 504 based on the trajectory adjustment value, and send the tool face angle and bend angle to the motor system 503 to control the drilling of the actuator 504.

[0127] It can be understood that the present embodiment provides a control system 500 for a directional rotary steering tool, which integrates multiple key parts such as a ground control system 501, an underground control system 502, a motor system 503 and an actuator 504. The ground control system 501 is responsible for collecting trajectory data and formation data in the well, which covers key information such as well inclination, azimuth and tool face. Based on these data, the ground control system further calculates the trajectory adjustment value required for the directional rotary steering tool, and sends the trajectory control instruction containing these adjustment values ​​to the underground control system 502. After receiving the trajectory control instruction, the underground control system 502 determines the tool face angle and bend angle to be adopted by the actuator 504 according to the trajectory adjustment value therein. Subsequently, the underground control system sends these angle data to the motor system 503, and the motor system 503 drives the actuator 504 to make corresponding adjustments to achieve precise drilling control. This system, through the close cooperation between the ground and underground control systems, not only solves the problem that the bend angle of the actuator in the existing directional rotary steering tool is fixed and cannot be adjusted according to actual needs, but also realizes the intelligent and precise control of the drilling process of the directional rotary steering tool.

[0128] Figure 6 Schematic diagram of the system composition of the control system of the directional rotary steerable tool provided in this application Figure 2 ,like Figure 6 As described above, the control system 600 of the pointing rotary steerable tool provided in this embodiment includes: a ground control system 601 , an underground control system 602 , a motor system 603 and an actuator 604 .

[0129] The surface control system 601 is used to determine the tool face angle and bend angle of the directional rotary steerable tool based on the trajectory data and formation data in the well, the trajectory data including the well inclination, azimuth and tool face; send a trajectory control instruction to the underground control system 602, the trajectory control instruction including the tool face angle and bend angle;

[0130] The underground control system 602 is used to send the tool face angle and the bend angle to the motor system 603 to control the actuator 604 to drill.

[0131] It can be understood that the present embodiment provides a control system 600 for a directional rotary steering tool, which is composed of a ground control system 601, an underground control system 602, a motor system 603 and an actuator 604. In this system, the ground control system 601 first determines the tool face angle and bend angle required for the directional rotary steering tool based on the trajectory data (including well inclination, azimuth and tool face) and formation data collected from the well through precise calculation. Subsequently, the ground control system 601 sends the tool face angle and bend angle required for the directional rotary steering tool to the underground control system 602 in the form of trajectory control instructions. After receiving these instructions, the underground control system 602 further transmits the data of these tool face angles and bend angles to the motor system 603. The motor system 603 drives the actuator 604 to make corresponding adjustments based on the received data to achieve precise drilling operations.

[0132] In a possible implementation, the motor system 603 includes a tool face angle motor 631 and a bend angle motor 632 ; the underground control system 602 is used to send the tool face angle to the tool face angle motor 631 , and send the bend angle to the bend angle motor 632 .

[0133] The motor system 603 is composed of a tool face angle motor 631 and a bending angle motor 632. The tool face angle motor 631 is used to adjust the tool face of the directional rotary steerable tool. The bending angle motor is used to adjust the bending angle of the directional rotary steerable tool.

[0134] It can be understood that after receiving the trajectory control instruction sent by the ground control system 601, the underground control system 602 will send corresponding tool face angle data to the tool face angle motor 631 and send corresponding bending angle data to the bending angle motor 632 according to the specific requirements in the instruction. The two motors adjust the tool face angle and bending angle of the actuator 604 respectively according to the received data, thereby achieving precise drilling control.

[0135] In a possible implementation, the above-ground control system 601 includes an above-ground communication unit 611 ; the underground control system 602 includes an underground communication unit 621 ; the underground communication unit 621 is used to obtain trajectory data and formation data, and send the trajectory data and formation data to the above-ground communication unit 621 .

[0136] In a possible implementation, the ground communication unit 611 is used to send trajectory instructions to the underground communication unit 621 .

[0137] It can be understood that the ground control system 601 and the underground control system 602 are respectively equipped with a ground communication unit 611 and an underground communication unit 621. The underground communication unit 621 is responsible for collecting the trajectory data (including well inclination, azimuth and tool face information) and formation data in the well, and then uploading these key data to the ground communication unit 611. After receiving these data through the ground communication unit 611, the ground control system 601 will further analyze and process them to determine the tool face angle and bend angle of the directional rotary steering tool, and send corresponding control instructions to the underground control system 602 through the ground communication unit 611. Such a communication mechanism ensures the real-time transmission and accurate processing of data, and provides a basis for subsequent drilling analysis operations.

[0138] Figure 7 The structural diagram of the control device of the directional rotary guide tool provided in the present application is as follows: Figure 7 As shown, the control device 700 of the directional rotary steering tool provided in this embodiment includes:

[0139] An acquisition module 701 is used to acquire trajectory data and formation data downhole, wherein the trajectory data includes well inclination, azimuth and tool face;

[0140] A determination module 702, configured to determine a tool face angle and a bend angle of the directional rotary steerable tool based on the trajectory data and the formation data;

[0141] The control module 703 is used to control the directional rotary steerable tool to perform drilling according to the tool face angle and the bend angle.

[0142] In a possible implementation, the determination module 702 is further configured to determine a trajectory adjustment value of the directional rotary steerable tool based on the trajectory data and the formation data;

[0143] The determination module 702 is specifically used to determine the tool face angle and the bend angle of the directional rotary steerable tool based on the trajectory adjustment value.

[0144] In a possible implementation, the determination module 702 is further used to determine that the tool face angle of the directional rotary steering tool is the current tool face angle, and the bending angle of the directional rotary steering tool is zero when the trajectory adjustment value is zero.

[0145] In a possible implementation manner, the determination module 702 is further configured to determine a target value of a bending angle of the directional rotary steerable tool based on the trajectory adjustment value;

[0146] The determination module 702 is specifically used to determine the bending angle of the directional rotary steering tool based on the bending angle target value and the preset bending angle margin.

[0147] In a possible implementation, the determination module 702 is specifically configured to determine a deviation value between the trajectory data and the target trajectory, and determine a tool face angle and a bend angle of the directional rotary steerable tool based on the deviation value and the formation data.

[0148] The control device of the directional rotary steering tool provided in this embodiment can execute the method provided in the above method embodiment. Its implementation principle and technical effect are similar, and this embodiment will not be described in detail here.

[0149] Figure 8 This is a schematic diagram of the structure of the control device of the directional rotary guide tool provided in this application. Figure 8 As shown, the electronic device 800 provided in this embodiment includes: at least one processor 801 and a memory 802. Optionally, the device 800 also includes a communication component 803. The processor 801, the memory 802 and the communication component 803 are connected via a bus 804.

[0150] In a specific implementation process, at least one processor 801 executes the computer-executable instructions stored in the memory 802, so that at least one processor 801 executes the above method.

[0151] The specific implementation process of the processor 801 can be found in the above method embodiment, and its implementation principle and technical effect are similar, so this embodiment will not be repeated here.

[0152] In the above embodiments, it should be understood that the processor can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), etc. A general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the invention can be directly implemented as a hardware processor, or can be implemented by a combination of hardware and software modules in the processor.

[0153] The memory may include a high-speed memory (Random Access Memory, RAM), and may also include a non-volatile memory (NVM), such as at least one disk storage.

[0154] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, the bus in the drawings of this application is not limited to only one bus or one type of bus.

[0155] The present application also provides a computer program product, including a computer program, which implements the above method when executed by a processor.

[0156] The present application also provides a computer-readable storage medium, in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, the above method is implemented.

[0157] The above-mentioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The readable storage medium can be any available medium that can be accessed by a general or special-purpose computer.

[0158] An exemplary readable storage medium is coupled to a processor so that the processor can read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can be located in an application specific integrated circuit (Application Specific Integrated Circuits, referred to as: ASIC). Of course, the processor and the readable storage medium can also exist in the device as discrete components.

[0159] The division of units is only a logical function division, and there may be other divisions in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0160] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0161] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0162] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0163] Those skilled in the art can understand that all or part of the steps of implementing the above-mentioned method embodiments can be completed by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the steps of the above-mentioned method embodiments are executed; and the aforementioned storage medium includes: ROM, RAM, disk or optical disk and other media that can store program codes.

[0164] Finally, it should be noted that those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art not disclosed by the present invention, are not limited to the precise structure described above and shown in the drawings, and may be modified and changed in various ways without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A control method for a directional rotary guide tool, characterized in that: include: Acquiring trajectory data and formation data downhole, wherein the trajectory data includes well inclination, azimuth and tool face; Determining a tool face angle and a bend angle of the directional rotary steerable tool based on the trajectory data and the formation data; The directional rotary steerable tool is controlled to perform drilling according to the tool face angle and the bend angle.

2. The method according to claim 1, characterized in that The determining of the tool face angle and the bend angle of the directional rotary steerable tool based on the trajectory data and the formation data comprises: Determining a trajectory adjustment value of the directional rotary steerable tool based on the trajectory data and the formation data; Based on the trajectory adjustment value, a tool face angle and a bend angle of the directional rotary steerable tool are determined.

3. The method according to claim 2, characterized in that Determining the tool face angle and the bend angle of the directional rotary steerable tool based on the trajectory adjustment value includes: When the trajectory adjustment value is zero, the tool face angle of the directional rotary steerable tool is determined to be the current tool face angle, and the bending angle of the directional rotary steerable tool is zero.

4. The method according to claim 2, characterized in that: Determining the bending angle of the directional rotary steering tool based on the trajectory adjustment value includes: Determining a target value of a bend angle of the directional rotary steering tool based on the trajectory adjustment value; Based on the bend angle target value and a preset bend angle margin, the bend angle of the directional rotary steering tool is determined.

5. The method according to claim 2, characterized in that: The determining of the tool face angle and the bend angle of the directional rotary steerable tool based on the trajectory data and the formation data comprises: The deviation value between the trajectory data and the target trajectory is determined, and based on the deviation value and the formation data, the tool face angle and the bend angle of the directional rotary steering tool are determined.

6. A pointing rotary guide tool system, characterized in that: include: Above ground control system, underground control system, motor system and actuator; The aboveground control system is used to obtain trajectory data and formation data in the well, wherein the trajectory data includes well inclination, azimuth and tool face; determine the trajectory adjustment value of the directional rotary steerable tool based on the trajectory data and the formation data; and send a trajectory control instruction to the underground control system, wherein the trajectory control instruction includes the trajectory adjustment value; The underground control system is used to determine the tool face angle and the bend angle of the actuator based on the trajectory adjustment value, and send the tool face angle and the bend angle to the motor system to control the drilling of the actuator.

7. A pointing rotary guide tool system, characterized in that: include: Above ground control system, underground control system, motor system and actuator; The aboveground control system is used to determine the tool face angle and the bend angle of the directional rotary steerable tool based on the trajectory data and formation data downhole, the trajectory data including the well inclination, azimuth and tool face; send a trajectory control instruction to the underground control system, the trajectory control instruction including the tool face angle and the bend angle; The underground control system is used to send the tool face angle and the bend angle to the motor system to control the drilling of the actuator.

8. The system according to claim 6 or 7, characterized in that: The motor system includes a tool face angle motor and a bending angle motor; The underground control system is used to send the tool face angle to the tool face angle motor, and send the bend angle to the bend angle motor.

9. The system according to claim 6 or 7, characterized in that: The above-ground control system includes an above-ground communication unit; the underground control system includes an underground communication unit; The underground communication unit is used to obtain the trajectory data and the stratum data, and send the trajectory data and the stratum data to the ground communication unit.

10. The system according to claim 9, characterized in that The above-ground communication unit is used to send the trajectory instruction to the underground communication unit.

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