Anti-inclination apparatus, Anti-inclination apparatus control method, electronic device, and readable storage medium

Abstract

An anti-inclination apparatus, an anti-inclination apparatus control method, an electronic device, and a readable storage medium, for use in reducing the inclination and vibration of a drilling tool during well drilling. The apparatus comprises: a central rod (1), the central rod (1) being connected to a drilling tool and rotating with the drilling tool, and an outer housing (2) being rotatably sleeved outside the central rod (1); a vibration measurement mechanism (3) arranged on the outer housing (2) and used for measuring a vibration value of the central rod (1); an inclination measurement mechanism (4) arranged on the outer housing (2) and used for measuring an inclination parameter of the central rod (1); and a plurality of pushing mechanisms (5) arranged on the outer housing (2) at intervals in the radial direction of the central rod (1), the plurality of pushing mechanisms (5) being in contact with a well wall in an extension state and capable of generating a pushing force, so as to reduce the inclination and vibration of the drilling tool.

Description

Anti-inclination device, anti-inclination device control method, electronic device and readable storage medium

[0001] Cross-reference to related applications

[0002] This application claims the benefit of Chinese Patent Application No. 202411226168.4, filed September 3, 2024, the contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of drilling, in particular to an anti-inclination device, an anti-inclination device control method, an electronic device and a readable storage medium. BACKGROUND

[0004] The current working of the vertical drilling tool is mainly to monitor the downhole inclination data through the sensor, and to realize the anti-inclination and correction of inclination by combining the data processing program nested in the circuit board to control the pushing action component to push against the well wall in a closed loop.

[0005] With the development of deep well and ultra-deep well drilling technology, due to the coupling of the two factors of intensified vibration caused by hard formation in the downhole and increased flexibility caused by smaller drilling tool size, the existing static pushing vertical drilling tool is seriously affected in the drilling process in the downhole, strong vibration brings problems such as tool damage in advance, drill bit damage in advance, etc. The vertical drilling tool is a mechanical and electrical hydraulic integrated device, and there is high-frequency impact between the tool and the well wall during high-speed rotation, which leads to rapid tool wear and restricts the realization of long-life work in the downhole. At the same time, the electronic devices inside the tool are affected by strong vibration, and the circuit failure and damage caused by device damage and solder falling off are serious. Moreover, the invalid trip caused by tool failure increases the drilling cost and seriously affects the drilling efficiency; on the other hand, the stick-slip and jump drilling problems of the drill bit under the influence of pressure cutting formation and increased flexibility of the drilling tool are further intensified under the influence of increased anti-inclination force, the rock breaking efficiency of the drill bit is affected, the anti-inclination of deep and difficult drilling formation is not obvious, the drill bit damage problem is intensified, the service life does not meet the expectation, and the drilling cost is further reduced. SUMMARY

[0006] The purpose of the embodiments of the present application is to provide an anti-inclination device, an anti-inclination device control method, an electronic device and a readable storage medium to solve the problems of tool damage in advance, drill bit damage in advance, rapid tool wear, short service life and high drilling cost in the drilling process.

[0007] To achieve the above purpose, in a first aspect, the embodiments of the present application provide an anti-inclination device for reducing the inclination and vibration of a drilling tool in a drilling process, the device comprising:

[0008] A central rod connected with the drilling tool and rotating with the drilling tool, an outer shell rotatably sleeved outside the central rod;

[0009] A vibration measuring mechanism arranged on the outer shell and configured to measure a vibration value of the central rod;

[0010] An inclination measuring mechanism arranged on the outer shell and configured to measure an inclination parameter of the central rod;

[0011] A plurality of pushing mechanisms arranged on the outer shell in a radial direction of the central rod and configured to generate a pushing force in contact with a well wall in an extended state to reduce the inclination and vibration of the drilling tool.

[0012] Optionally, the pushing mechanism comprises:

[0013] A pushing plate, a rotating end of the pushing plate being rotatably arranged on the outer shell;

[0014] A pushing mechanism arranged on the outer shell between the outer shell and the pushing plate, a driving end of the pushing mechanism being connected with a movable end of the pushing plate, the plurality of pushing mechanisms being capable of generating the pushing force in contact with the well wall in the extended state to reduce the inclination and vibration of the drilling tool.

[0015] Optionally, a limiting protrusion is arranged on the outer shell;

[0016] The movable end of the pushing plate is provided with a limiting portion, the limiting portion being configured to be in contact with the limiting protrusion when the movable end of the pushing plate is extended to a preset position to limit the extension amount of the movable end of the pushing plate.

[0017] Optionally, the pushing mechanism comprises a hydraulic cylinder or an electric cylinder.

[0018] Optionally, the anti-inclination device further comprises:

[0019] A controller arranged on the outer shell and connected with the vibration measuring mechanism, the inclination measuring mechanism and each pushing mechanism, the controller being configured to control the corresponding pushing mechanism to work based on the vibration value and the inclination parameter.

[0020] Optionally, the anti-inclination device further comprises:

[0021] A short section connected with the central rod, the short section being hollow and provided with a power supply and a communication module;

[0022] The power supply is configured to supply power to the vibration measuring mechanism, the inclination measuring mechanism, the controller and the pushing mechanism;

[0023] The communication module is connected with the controller and configured to send the vibration value and the inclination parameter to a remote server.

[0024] In a second aspect, the embodiments of the present application further provide a control method of the anti-inclination device, which is applied to the anti-inclination device, and the method comprises the following steps:

[0025] obtaining a vibration value of the center rod and an inclination parameter in the drilling process, the inclination parameter comprising an inclination direction and an inclination degree;

[0026] determining that the inclination degree is less than or equal to a preset inclination threshold value, and then controlling all the pushing mechanisms to output pushing forces with corresponding sizes based on the current corresponding vibration value;

[0027] determining that the inclination degree is greater than the preset inclination threshold value, and then dividing all the pushing mechanisms into first target pushing mechanisms and second target pushing mechanisms based on the current corresponding inclination direction, and controlling the first target pushing mechanisms and the second target pushing mechanisms to output pushing forces with corresponding sizes based on the current corresponding vibration value; wherein the resultant force directions of the pushing mechanisms in the first target pushing mechanisms are opposite to the inclination direction of the center rod.

[0028] Optionally, the controlling all the pushing mechanisms to output pushing forces with corresponding sizes based on the current corresponding vibration value comprises:

[0029] if the vibration value is less than a first vibration threshold value, then controlling all the pushing mechanisms to output the pushing forces with a first preset pushing force;

[0030] if the vibration value is greater than or equal to the first vibration threshold value and less than or equal to a second vibration threshold value, then controlling all the pushing mechanisms to output the pushing forces with a second preset pushing force;

[0031] if the vibration value is greater than the second vibration threshold value, then controlling all the pushing mechanisms to stop outputting the pushing forces;

[0032] wherein the first vibration threshold value is less than the second vibration threshold value, and the first preset pushing force is less than the second preset pushing force.

[0033] Optionally, the controlling the first target pushing mechanisms and the second target pushing mechanisms to output pushing forces with corresponding sizes based on the current corresponding vibration value comprises:

[0034] if the vibration value is less than the first vibration threshold value, then controlling the pushing mechanisms in the first target pushing mechanisms to output the pushing forces with a third preset pushing force, and controlling each pushing mechanism in the second target pushing mechanisms to output the pushing force with the first preset pushing force;

[0035] if the vibration value is greater than or equal to the first vibration threshold value and less than or equal to the second vibration threshold value, then controlling the pushing mechanisms in the first target pushing mechanisms to output the pushing forces with a fourth preset pushing force, and controlling each pushing mechanism in the second target pushing mechanisms to output the pushing force with the second preset pushing force;

[0036] If the vibration value is greater than the second vibration threshold value, the control is performed on the pushing force resultant force output by the pushing mechanism in the first target pushing mechanism to be the fifth preset pushing force, and the pushing force output by each pushing mechanism in the second target pushing mechanism is controlled to be the second preset pushing force.

[0037] The first vibration threshold value is less than the second vibration threshold value; and the first preset pushing force, the second preset pushing force, the third preset pushing force, the fourth preset pushing force and the fifth preset pushing force increase in turn.

[0038] Optionally, the method further comprises:

[0039] From the moment when the pushing force resultant force output by the pushing mechanism in the first target pushing mechanism reaches the fifth preset pushing force, if it is determined that the vibration value is always greater than the second vibration threshold value within a preset time length, the control is performed on the drilling pressure of the drilling tool to decrease to a preset drilling pressure according to a preset amplitude.

[0040] In a third aspect, an embodiment of the present application further provides a control device of a deviation prevention device, and the device comprises:

[0041] A parameter acquisition module is configured to acquire a vibration value of a center rod and a deviation parameter in a drilling process, and the deviation parameter comprises a deviation direction and a deviation degree.

[0042] A judgment and control module is configured to, in a case where the deviation degree is less than or equal to a preset deviation threshold value, control all pushing mechanisms to output pushing forces with corresponding sizes based on a current corresponding vibration value; and

[0043] In a case where the deviation degree is greater than the preset deviation threshold value, all pushing mechanisms are divided into a first target pushing mechanism and a second target pushing mechanism based on the deviation direction, and the first target pushing mechanism and the second target pushing mechanism are controlled to output pushing forces with corresponding sizes based on a current corresponding vibration value; wherein the pushing mechanisms in the first target pushing mechanism have a resultant force direction opposite to the deviation direction of the center rod.

[0044] In a fourth aspect, an embodiment of the present application further provides an electronic device, which comprises a memory, a processor and a computer program stored in the memory and executable on the processor, and the processor implements the deviation prevention device control method described above when executing the computer program.

[0045] In a fifth aspect, an embodiment of the present application further provides a readable storage medium, and the readable storage medium stores instructions for causing a machine to execute the deviation prevention device control method described above.

[0046] The anti-inclination device has simple structure, convenient use, wide application range, can effectively reduce the inclination and vibration of the drilling tool in the drilling process, effectively avoids the rapid damage of the drilling tool in the drilling process, prolongs the service life of the drilling tool, ensures the stable drilling pressure of the drill bit and reduces the drilling cost.

[0047] Other features and advantages of the embodiments of the present application will be described in detail in the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0048] The accompanying drawings are included to provide a further understanding of the embodiments of the present application, and constitute a part of the specification, and are used to explain the embodiments of the present application together with the following detailed description, but do not constitute a limitation of the embodiments of the present application. In the drawings:

[0049] Fig. 1 is a cross-sectional structure schematic view of the anti-inclination device provided by the present application;

[0050] Fig. 2 is a top view of the anti-inclination device provided by the present application;

[0051] Fig. 3 is a flow chart of the control method of the anti-inclination device provided by the present application;

[0052] Fig. 4 is a structure schematic view of the control device of the anti-inclination device provided by the present application;

[0053] Fig. 5 is a structure schematic view of the anti-inclination device and the direction of the pushing force in the embodiment 1 and the embodiment 2 provided by the present application.

[0054] Legend of reference signs 1-center rod; 2-outer shell; 3-vibration measuring mechanism; 4-inclination measuring mechanism; 5-pushing mechanism; 6-controller; 7-short section; 21-limiting protrusion; 51-pushing plate; 52-pushing mechanism; 71-power supply; 72-communication module; 511-limiting part. DETAILED DESCRIPTION

[0055] The specific embodiments of the embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the embodiments of the present application, and are not used to limit the embodiments of the present application.

[0056] In the embodiments of the present application, the orientation words such as "up, down, left and right" used without the opposite description generally refer to the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly used when the product is used.

[0057] The terms "first", "second", "third", and the like, are used merely for distinguishing between similar objects, and do not indicate or imply a relative importance.

[0058] The terms "parallel", "vertical", and the like, do not mean that the components are absolutely parallel or vertical, but can be slightly inclined. For example, "parallel" only means that its direction is more parallel relative to "vertical", and does not mean that the structure must be completely parallel, but can be slightly inclined.

[0059] The terms "horizontal", "vertical", "overhanging", and the like, do not mean that the components are absolutely horizontal, vertical, or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0060] In addition, the terms "approximately", "substantially", and the like, are intended to indicate that the relevant content is not required to be absolutely accurate, but can have some deviation. For example, "approximately equal" does not only mean absolute equality, because in actual production and operation, it is difficult to achieve absolute "equality", and there is generally some deviation. Therefore, in addition to absolute equality, "approximately equal" also includes the above-mentioned case of having some deviation. By way of example, in other cases, unless otherwise specified, the terms "approximately", "substantially", and the like, have similar meanings as described above.

[0061] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", and "connection" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0062] The present application is not limited by the examples. In the drawings:

[0063] Fig. 1 is a schematic view of the cross-sectional structure of the anti-inclination device provided by the present application; Fig. 2 is a top view of the anti-inclination device provided by the present application; Fig. 3 is a flow chart of the control method of the anti-inclination device provided by the present application; Fig. 4 is a schematic view of the structure of the control device of the anti-inclination device provided by the present application; and Fig. 5 is a schematic view of the structure of the anti-inclination device and the direction of the thrust force in Example 1 and Example 2 provided by the present application.

[0064] As shown in Figs. 1-2, the present embodiment provides an anti-inclination device for reducing the inclination and vibration of a drilling tool during drilling. The device comprises:

[0065] a central rod 1 connected with the drilling tool and rotating with the drilling tool, and an outer shell 2 rotatably sleeved outside the central rod 1.

[0066] a vibration measuring mechanism 3 arranged on the outer shell 2 and used for measuring the vibration value of the central rod 1;

[0067] a tilt measuring mechanism 4 arranged on the outer shell 2 and used for measuring the tilt parameter of the central rod 1;

[0068] a plurality of pushing mechanisms 5 arranged on the outer shell 2 along the radial direction of the central rod 1, and the pushing mechanisms 5 are in contact with the well wall in the extended state to generate a pushing force, so as to reduce the tilt and vibration of the drilling tool.

[0069] Specifically, in the embodiment, the rotatable connection between the central rod 1 and the outer shell 2 can be realized by bearings, which can not only limit the position, but also reduce the transmission of vibration; at the same time, in order to realize better drilling, the outer surface of the outer shell 2 is provided with no structure protrusion, therefore, the vibration measuring mechanism 3 and the tilt measuring mechanism 4 are arranged on the inner surface of the outer shell 2, and the pushing mechanism 5 is arranged in the shell wall of the outer shell 2, correspondingly, in order to have enough installation space, grooves can be arranged on the corresponding positions of the central rod 1 to accommodate the vibration measuring mechanism 3, the tilt measuring mechanism 4 and the pushing mechanism 5; the vibration measuring mechanism 3 can be a vibration sensor, and the vibration monitoring range is 0-20g of three-axis mean square value; the tilt measuring mechanism 4 is an acceleration sensor, which has three orthogonal axes, wherein the x-axis and the y-axis are tool faces, and the z-axis is vertical, when the inclination changes, the ratio of the x-axis and the y-axis will push out the tool face, so as to accurately determine the tilt parameter, including the tilt degree and the tilt direction, and the tilt monitoring range is 0-5°; when the tilt measuring mechanism 4 is installed, one of the axes coincides with the thrust output direction of any pushing mechanism 5, so as to specify the tilt direction, to realize the targeted control of the pushing force of the pushing mechanism 5.

[0070] Preferably, the pushing mechanism 5 can be arranged in three, arranged in a regular triangle structure; or arranged in four, arranged in a square structure. Among them, the control mode corresponding to the three pushing mechanisms 5 is the simplest, and the use cost is the lowest.

[0071] Further, the pushing mechanism 5 comprises:

[0072] a pushing plate 51, the rotating end of the pushing plate 51 is rotatably arranged on the outer shell 2;

[0073] a pushing mechanism 52 arranged on the outer shell 2 between the outer shell 2 and the pushing plate 51, the driving end of the pushing mechanism 52 is connected with the movable end of the pushing plate 51, used for pushing the movable end of the pushing plate 51 to extend to contact with the well wall, and pushing the pushing plate 51 to reset.

[0074] Specifically, in the embodiment, the pushing mechanism 5 is arranged to include a pushing plate 51 and a pushing mechanism 52, the rotating end of the pushing plate 51 is rotatably arranged on the outer housing 2, realizing rotation around the shaft, limiting the position, and the pushing mechanism 52 is used to provide the pushing force to push the movable end of the pushing plate 51 to extend, so as to realize the contact with the well wall. In this way, the structure is simple, the contact strength is large, and the service life is long. The maximum output thrust of the pushing mechanism 52 is 50kN.

[0075] Preferably, the pushing mechanism 52 uses a hydraulic cylinder or an electric cylinder. The hydraulic cylinder or the electric cylinder is used to realize the driving, and has the advantages of simple structure, high control precision, and good thrust stability.

[0076] Further, the outer housing 2 is provided with a limiting protrusion 21;

[0077] The movable end of the pushing plate 51 is provided with a limiting portion 511, which is used to contact the limiting protrusion 21 when the movable end of the pushing plate 51 extends to the preset position, so as to limit the extension amount of the movable end of the pushing plate 51.

[0078] Specifically, in the embodiment, by arranging the limiting protrusion 21 on the outer housing 2, when the pushing mechanism 52 pushes the pushing plate 51 to extend to the predetermined position, the limiting portion 511 of the movable end of the pushing plate 51 will be in contact with the limiting protrusion 21, so as to limit the continuous extension of the pushing plate 51 to the outside, protect the pushing plate 51, avoid the damage of the equipment in the case of control failure of the pushing mechanism 52, and ensure the safety of operation.

[0079] Further, the anti-inclination device further comprises:

[0080] A controller 6 is arranged on the outer housing 2 and connected with the vibration measuring mechanism 3, the inclination measuring mechanism 4 and each pushing mechanism 5, and is used to control the corresponding pushing mechanism 5 to work based on the vibration value and the inclination parameter.

[0081] Specifically, in the embodiment, the controller 6 is arranged in the outer housing 2, and the controller 6 controls the corresponding pushing mechanism 5 to work based on the vibration value and the inclination parameter, so as to automatically adjust and control according to the actual operation parameter, which can ensure the control precision and effectively reduce the inclination and vibration of the drilling tool.

[0082] Further, the anti-inclination device further comprises:

[0083] A short section 7 is connected with the central rod 1, the short section 7 is hollow inside and is provided with a power supply 71 and a communication module 72;

[0084] The power supply 71 is configured to supply power to the vibration measuring mechanism 3, the inclination measuring mechanism 4, the controller 6 and the pushing mechanism 5.

[0085] The communication module 72 is connected with the controller 6, and is configured to send the vibration value and the inclination parameter to a remote server.

[0086] Specifically, in order to realize the normal operation of the anti-inclination device, a short section is installed on the central rod 1, and a power supply is arranged in the short section to supply power to the anti-inclination device; in addition, in order to ensure the traceability of data, the communication module 72 is arranged in the short section 7, the communication module 72 is connected with the controller 6, and can send the vibration value measured by the vibration measuring mechanism 3 and the inclination parameter measured by the inclination measuring mechanism 4 to a remote server for storage.

[0087] As shown in FIG. 3, the embodiment provides an anti-inclination device control method, which is applied to the anti-inclination device described above, and the method comprises:

[0088] obtaining a vibration value of the central rod and an inclination parameter in the drilling process, wherein the inclination parameter comprises an inclination direction and an inclination degree;

[0089] determining that the inclination degree is less than or equal to a preset inclination threshold value, and then controlling all the pushing mechanisms to output corresponding pushing forces based on the current corresponding vibration value;

[0090] determining that the inclination degree is greater than the preset inclination threshold value, and then dividing all the pushing mechanisms into first target pushing mechanisms and second target pushing mechanisms based on the current corresponding inclination direction, and controlling the first target pushing mechanisms and the second target pushing mechanisms to output corresponding pushing forces based on the current corresponding vibration value; wherein the directions of the resultant forces of the pushing mechanisms in the first target pushing mechanisms are opposite to the inclination direction of the central rod.

[0091] Specifically, after obtaining the data, first, the size of the inclination degree is determined, different control modes are adopted for different inclination degrees, so as to ensure the accuracy of control, effectively reduce the inclination and vibration of the drilling tool, and avoid the rapid damage of the drilling tool in the drilling process, thereby improving the service life of the drilling tool.

[0092] For the first case, if the inclination degree is less than or equal to the preset inclination threshold value, then all the pushing mechanisms are controlled to output corresponding pushing forces based on the vibration value; in this scheme, since the inclination degree is less than the preset inclination threshold value, the inclination angle is small at this time, and it is considered that the drill string is centered for drilling, so the same size of pushing force is output for all the pushing mechanisms; and the pushing forces output by the pushing mechanisms are different for different vibration values, and specifically include:

[0093] if the vibration value is less than a first vibration threshold value, then the pushing forces output by all the pushing mechanisms are controlled to be a first preset pushing force;

[0094] If the vibration value is greater than or equal to the first vibration threshold value and less than or equal to the second vibration threshold value, the pushing force output by all the pushing mechanisms is controlled to be the second preset pushing force;

[0095] If the vibration value is greater than the second vibration threshold value, all the pushing mechanisms are controlled to stop outputting the pushing force;

[0096] The first vibration threshold value is less than the second vibration threshold value, and the first preset pushing force is less than the second preset pushing force.

[0097] For the second case, if the inclination is greater than the preset inclination threshold value, all the pushing mechanisms are divided into first target pushing mechanisms and second target pushing mechanisms based on the inclination direction, and the first target pushing mechanisms and the second target pushing mechanisms output corresponding pushing forces based on the vibration value; wherein the direction of the resultant force of the pushing mechanisms in the first target pushing mechanisms is opposite to the inclination direction of the center rod. In this scheme, since the inclination is greater than the preset inclination threshold value, the inclination angle is large at this time, and it is considered that the drill string is inclined drilling, so different pushing forces need to be output for different pushing mechanisms according to the inclination direction of the drilling tool (center rod). Therefore, all the pushing mechanisms are divided into two categories according to the inclination direction, one category is the first target pushing mechanism, and the direction of the resultant force of the pushing mechanisms in the first target pushing mechanism is opposite to the inclination direction of the center rod. Therefore, when there are two or more pushing mechanisms, the pushing forces between the two pushing mechanisms need to be determined according to the inclination angle and the included angle between the two pushing mechanisms. For the other category of second target pushing mechanisms, the same pushing force is output. In addition, the pushing forces output by the pushing mechanisms are different for different vibration values, which specifically includes:

[0098] If the vibration value is less than the first vibration threshold value, the resultant force of the pushing forces output by the pushing mechanisms in the first target pushing mechanisms is controlled to be the third preset pushing force, and the pushing force output by each pushing mechanism in the second target pushing mechanisms is controlled to be the first preset pushing force;

[0099] If the vibration value is greater than or equal to the first vibration threshold value and less than or equal to the second vibration threshold value, the resultant force of the pushing forces output by the pushing mechanisms in the first target pushing mechanisms is controlled to be the fourth preset pushing force, and the pushing force output by each pushing mechanism in the second target pushing mechanisms is controlled to be the second preset pushing force;

[0100] If the vibration value is greater than the second vibration threshold value, the resultant force of the pushing forces output by the pushing mechanisms in the first target pushing mechanisms is controlled to be the fifth preset pushing force, and the pushing force output by each pushing mechanism in the second target pushing mechanisms is controlled to be the second preset pushing force;

[0101] The first vibration threshold is smaller than the second vibration threshold; the first preset pushing force is smaller than the second preset pushing force, the second preset pushing force is smaller than the third preset pushing force, the third preset pushing force is smaller than the fourth preset pushing force, and the fourth preset pushing force is smaller than the fifth preset pushing force.

[0102] More specifically, since the relative positions between each pushing mechanism are fixed, and the positions of the inclination measuring mechanism are also relative positions, after the inclination angle of the inclination measuring mechanism is determined, the corresponding relationship between the inclination angle of the central rod and each pushing mechanism can be accurately determined, the first target pushing mechanism and the second target pushing mechanism are accurately divided, and thus the pushing force of the pushing mechanism in the first target pushing mechanism can be calculated. In the case where the resultant force between the pushing mechanisms and the angle between the pushing mechanisms and the resultant force are known, the pushing force of each pushing mechanism is calculated, which is known to those skilled in the art, and will not be described here.

[0103] Further, the method further comprises:

[0104] From the moment when the resultant force of the pushing mechanism in the first target pushing mechanism reaches the fifth preset pushing force, if the vibration value is always greater than the second vibration threshold within a preset time, the drilling pressure of the drilling tool is controlled to decrease to a preset drilling pressure at a preset amplitude.

[0105] Specifically, in the embodiment, for the second case, if the inclination is greater than a preset inclination threshold, all the pushing mechanisms are divided into the first target pushing mechanism and the second target pushing mechanism based on the inclination direction, and the first target pushing mechanism and the second target pushing mechanism output corresponding pushing forces based on the vibration value. Through the above control mode, the inclination angle and vibration of the drilling tool can be reduced, but from the moment when the resultant force of the pushing mechanism in the first target pushing mechanism reaches the fifth preset pushing force, if the vibration value is always greater than the second vibration threshold within a preset time, it indicates that the vibration and inclination have not been effectively reduced after the pushing force is applied, and continuing to operate has certain safety risks, so the drilling pressure of the drilling tool needs to be controlled to decrease to a preset drilling pressure at a preset amplitude.

[0106] In summary, the present scheme combines the real-time collected vibration data and well deviation data, comprehensive processing, controlling the size of the force of the three pushing mechanisms and adjusting the drilling parameters to realize closed-loop deviation control. The previous single well deviation measurement closed-loop control mode is changed, the adaptability of the vertical drilling tool to strong vibration and large inclination easy deviation formation is improved, the tool can automatically adjust the working parameters in real time according to the working conditions, a good operation control method is provided for the long-life working of the downhole tool, the working life of the downhole tool is improved, and the tool failure rate is reduced. At the same time, by changing the control mode, the vibration is reduced, the bit pressure is kept stable, the problem of rapid damage of the bit in the process of drilling deep well is solved, the service life of the bit is improved, and the comprehensive benefit is improved. The existing tool can effectively solve the problem of deviation control without speed increase in deep well difficult formation, and help to realize the drilling quality and benefit.

[0107] As shown in FIG. 4, the present embodiment provides a deviation control device, which comprises:

[0108] a parameter acquisition module, configured to acquire a vibration value of the central rod and an inclination parameter in the drilling process, the inclination parameter comprising an inclination direction and an inclination degree;

[0109] a judgment and control module, configured to, in a case where the inclination degree is less than or equal to a preset inclination threshold, control all the pushing mechanisms to output corresponding pushing forces based on the current corresponding vibration value; and

[0110] in a case where the inclination degree is greater than the preset inclination threshold, divide all the pushing mechanisms into first target pushing mechanisms and second target pushing mechanisms based on the inclination direction, and control the first target pushing mechanisms and the second target pushing mechanisms to output corresponding pushing forces based on the current corresponding vibration value; wherein the resultant force direction of the pushing mechanisms in the first target pushing mechanisms is opposite to the inclination direction of the central rod.

[0111] Embodiment 1

[0112] As shown in FIG. 5, in the present embodiment, the deviation control device is provided with three pushing mechanisms 5, which are distributed in a regular triangle structure and respectively comprise a first pushing mechanism, a second pushing mechanism and a third pushing mechanism. The preset inclination threshold is set to 0.5 degrees. The inclination degree measured by the inclination measuring mechanism 4 is 0.3 degrees, and the inclination direction coincides with the direction of the first pushing mechanism. Since the inclination degree is less than the preset inclination threshold, and the vibration value is measured in real time by the vibration measuring mechanism 3, the following three cases are included:

[0113] (1) When the downhole vibration is within 5g, the pushing forces (F1, F2 and F3) output by the three pushing mechanisms are all 5kN;

[0114] (2) When the downhole vibration is between 5-10g, the pushing force (F1, F2 and F3) output by the three pushing mechanisms is 10kN;

[0115] (3) When the downhole vibration is greater than 10g, stop the pushing mechanism from working, and perform the drilling parameter reduction operation.

[0116] Embodiment 2

[0117] As shown in FIG. 5, in the present embodiment, the deviation prevention device is provided with three pushing mechanisms 5, and is in an equilateral triangle structure, and respectively includes a first pushing mechanism, a second pushing mechanism and a third pushing mechanism, and the preset deviation threshold is set to 0.5 degrees. The deviation measured by the deviation measuring mechanism 4 is 0.7 degrees, and the deviation direction coincides with the direction of the first pushing mechanism. Since the deviation is greater than the preset deviation threshold, the second pushing mechanism and the third pushing mechanism are determined as the first target pushing mechanism, and the first pushing mechanism is determined as the second target pushing mechanism. The vibration value is measured in real time by the vibration measuring mechanism 3, which contains the following four cases:

[0118] (1) When the downhole vibration is within 5g, the pushing force (F1) output by the second target pushing mechanism (the first pushing mechanism) is controlled to be 5kN, the combined force (the combined force of F2 and F3) of the first target pushing mechanism (the second pushing mechanism and the third pushing mechanism) is 30kN, and the combined force is opposite to the direction of the deviation angle (the opposite direction of the pushing force of the first pushing mechanism);

[0119] (2) When the downhole vibration is between 5-10g, the pushing force (F1) output by the second target pushing mechanism (the first pushing mechanism) is controlled to be 10kN, the combined force (the combined force of F2 and F3) of the first target pushing mechanism (the second pushing mechanism and the third pushing mechanism) is 40kN, and the combined force is opposite to the direction of the deviation angle (the opposite direction of the pushing force of the first pushing mechanism);

[0120] (3) When the downhole vibration is greater than 10g, the pushing force (F1) output by the second target pushing mechanism (the first pushing mechanism) is controlled to be 10kN, the combined force (the combined force of F2 and F3) of the first target pushing mechanism (the second pushing mechanism and the third pushing mechanism) is 40kN, and the combined force is opposite to the direction of the deviation angle (the opposite direction of the pushing force of the first pushing mechanism);

[0121] (4) When the downhole vibration is greater than 10g, and the combined force of the first target pushing mechanism (the second pushing mechanism and the third pushing mechanism) reaches 50kN, the downhole vibration remains greater than 10g for more than 1 hour, and the drilling pressure is reduced by 10%.

[0122] The optional implementation of the embodiments of the present application is described in detail above in combination with the drawings, but the embodiments of the present application are not limited to the specific details in the above implementation, and various simple modifications can be made to the technical solutions of the embodiments of the present application within the technical concept of the embodiments of the present application, and these simple modifications all belong to the protection scope of the embodiments of the present application.

[0123] Those skilled in the art can understand that all or part of the steps of the methods in the above embodiments can be completed by using a program instructing related hardware, and the program is stored in a storage medium and includes a plurality of instructions for making a single-chip microcomputer, a chip or a processor execute all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk and various storage media that can store program codes.

[0124] The optional implementation of the embodiments of the present application is described in detail above in combination with the drawings, but the embodiments of the present application are not limited to the specific details in the above implementation, and various simple modifications can be made to the technical solutions of the embodiments of the present application within the technical concept of the embodiments of the present application, and these simple modifications all belong to the protection scope of the embodiments of the present application. In addition, it should be noted that various specific technical features described in the above specific implementation can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combinations are not described again in the embodiments of the present application

[0125] In addition, various different embodiments of the embodiments of the present application can also be combined in any manner, as long as it does not deviate from the idea of the embodiments of the present application, and it should be considered as the disclosed content of the embodiments of the present application.

Claims

1. A device for reducing the inclination and vibration of a drilling tool during drilling operations, characterized in that, The device comprises: a central rod (1) connected with a drilling tool and rotating with the drilling tool, an outer shell (2) rotatably sleeved outside the central rod (1); a vibration measuring mechanism (3) arranged on the outer shell (2) and used for measuring a vibration value of the central rod (1); an inclination measuring mechanism (4) arranged on the outer shell (2) and used for measuring an inclination parameter of the central rod (1); a plurality of pushing mechanisms (5) arranged on the outer shell (2) in a radial direction of the central rod (1), the pushing mechanisms (5) being capable of generating a pushing force by being in contact with a well wall in an extended state, so as to reduce the inclination and vibration of the drilling tool; a controller (6) arranged on the outer shell (2) and connected with the vibration measuring mechanism (3), the inclination measuring mechanism (4) and each pushing mechanism (5), the controller (6) being used for controlling the corresponding pushing mechanism (5) to work based on the vibration value and the inclination parameter, the inclination parameter including an inclination direction and an inclination degree, the controller (6) including: in a case where the inclination degree is determined to be less than or equal to a preset inclination threshold, controlling all the pushing mechanisms to output pushing forces of corresponding sizes based on the current corresponding vibration value; in a case where the inclination degree is determined to be greater than the preset inclination threshold, dividing all the pushing mechanisms into first target pushing mechanisms and second target pushing mechanisms based on the current corresponding inclination direction, and controlling the first target pushing mechanisms and the second target pushing mechanisms to output pushing forces of corresponding sizes based on the current corresponding vibration value, wherein the resultant force direction of the pushing mechanisms in the first target pushing mechanisms is opposite to the inclination direction of the central rod.

2. The anti-list device of claim 1, wherein, The pushing mechanism (5) comprises: a pushing plate (51), a rotating end of the pushing plate (51) being rotatably arranged on the outer shell (2); a pushing mechanism (52) arranged on the outer shell (2) and located between the outer shell (2) and the pushing plate (51), a driving end of the pushing mechanism (52) being connected with a movable end of the pushing plate (51), the pushing mechanism (52) being used for pushing the movable end of the pushing plate (51) to extend to be in contact with the well wall and pushing the pushing plate (51) to reset.

3. The anti-list device of claim 2, wherein, A limiting protrusion (21) is arranged on the outer shell (2); a limiting portion (511) is arranged on the movable end of the pushing plate (51), the limiting portion (511) being used for being in contact with the limiting protrusion (21) when the movable end of the pushing plate (51) extends to a preset position, so as to limit the extension amount of the movable end of the pushing plate (51).

4. The anti-list device of claim 2, wherein, The pushing mechanism (52) comprises a hydraulic oil cylinder or an electric cylinder.

5. The anti-list device of claim 1, wherein, The anti-inclination device further comprises: a short section (7) connected with the central rod (1), the short section (7) being hollow inside and being provided with a power supply (71) and a communication module (72); the power supply (71) is used for supplying power to the vibration measuring mechanism (3), the inclination measuring mechanism (4), the controller (6) and the pushing mechanism (5); the communication module (72) is connected with the controller (6) and is used for sending the vibration value and the inclination parameter to a remote server.

6. A control method for a kick device according to any one of claims 1 to 5, characterized in that, The method comprises: obtaining a vibration value and an inclination parameter of a central rod in a drilling process, the inclination parameter including an inclination direction and an inclination degree; determining that the inclination is less than or equal to a preset inclination threshold, and based on a current corresponding vibration value, controlling all the pushing mechanisms to output pushing forces of corresponding sizes; determining that the inclination is greater than the preset inclination threshold, and based on a current corresponding inclination direction, dividing all the pushing mechanisms into first target pushing mechanisms and second target pushing mechanisms, and based on a current corresponding vibration value, controlling the first target pushing mechanisms and the second target pushing mechanisms to output pushing forces of corresponding sizes; wherein the resultant force directions of the pushing mechanisms in the first target pushing mechanisms are opposite to the inclination direction of the center rod.

7. The kick device control method according to claim 6, wherein controlling all the pushing mechanisms to output pushing forces of corresponding sizes based on a current corresponding vibration value, including: if the vibration value is less than a first vibration threshold, controlling all the pushing mechanisms to output the first preset pushing force; if the vibration value is greater than or equal to the first vibration threshold and less than or equal to a second vibration threshold, controlling all the pushing mechanisms to output the second preset pushing force; if the vibration value is greater than the second vibration threshold, controlling all the pushing mechanisms to stop outputting the pushing force; wherein the first preset pushing force is less than the second preset pushing force.

8. The kick device control method according to claim 6, wherein controlling the first target pushing mechanisms and the second target pushing mechanisms to output pushing forces of corresponding sizes based on a current corresponding vibration value, including: if the vibration value is less than the first vibration threshold, controlling the pushing mechanisms in the first target pushing mechanisms to output a third preset pushing force, and controlling each pushing mechanism in the second target pushing mechanisms to output the first preset pushing force; if the vibration value is greater than or equal to the first vibration threshold and less than or equal to the second vibration threshold, controlling the pushing mechanisms in the first target pushing mechanisms to output a fourth preset pushing force, and controlling each pushing mechanism in the second target pushing mechanisms to output the second preset pushing force; if the vibration value is greater than the second vibration threshold, controlling the pushing mechanisms in the first target pushing mechanisms to output a fifth preset pushing force, and controlling each pushing mechanism in the second target pushing mechanisms to output the second preset pushing force; wherein the first preset pushing force, the second preset pushing force, the third preset pushing force, the fourth preset pushing force and the fifth preset pushing force increase in turn.

9. The kick device control method according to claim 8, wherein The method further includes: from the moment when the resultant force of the pushing mechanisms in the first target pushing mechanisms reaches the fifth preset pushing force, if it is determined that the vibration value is always greater than the second vibration threshold within a preset time length, controlling the WOB of the drilling tool to decrease to a preset WOB at a preset amplitude.

10. A control device for a kickback device, characterized in that The device includes: a parameter acquisition module configured to acquire a vibration value of a center rod and an inclination parameter in a drilling process, the inclination parameter including an inclination direction and an inclination; a judgment and control module configured to, in a case where the inclination is less than or equal to a preset inclination threshold, based on a current corresponding vibration value, control all the pushing mechanisms to output pushing forces of corresponding sizes; and In a case where the inclination is greater than a preset inclination threshold, all the pushing mechanisms are divided into first target pushing mechanisms and second target pushing mechanisms based on the inclination direction, and the first target pushing mechanisms and the second target pushing mechanisms are controlled to output pushing forces of corresponding sizes based on the current corresponding vibration values; wherein the directions of the resultant forces of the pushing mechanisms in the first target pushing mechanisms are opposite to the inclination direction of the center rod.

11. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, The processor implements the anti-inclination device control method of any one of claims 6-9 when executing the computer program. 12.A readable storage medium having instructions stored thereon for causing a machine to execute the anti-inclination device control method of any one of claims 6-9.

Images