Cable electric control type whipstock system

Abstract

The invention provides a cable electric control type whipstock system which comprises a ground system and a whipstock, and the whipstock is constructed to be capable of being fixed underground and is provided with an inclined face for guiding a drill column, a bottom drilling tool and a milling cone. Wherein the ground system sends the whipstock to an underground preset position through a cable, exchanges information with the whipstock through a wireless communication signal, and controls the whipstock to be hung on or separated from a casing pipe. According to the invention, a cable feeding mode is adopted, and one-time drilling tripping-in and sitting hanging are carried out. In addition, the speed of lowering the cable into the whipstock is very high, and the drilling time can be saved.

Description

TECHNICAL FIELD

[0001] The present application relates to a cable-controlled whipstock system, belonging to the technical field of drilling. BACKGROUND

[0002] With the extension of oilfield development time, the production of old oil and gas wells is low, and they are facing shutdown and scrap. The casing window technology can effectively utilize the existing borehole to drill a new borehole, tap the potential of remaining oil, improve recovery, achieve less well and high yield, and reduce cost and increase efficiency. It has a broad application market in the aspects of old well revival in land oilfield, well slot reuse in offshore platform, accident well treatment, and branch well development.

[0003] In deep and ultra-deep wells, the whipstock of one-trip drilling often fails to be set due to the reliability of the drilling fluid system and the pollutants in the drilling fluid. The split whipstock has high reliability, but the whipstock and windowing tool are lowered in two times, which is not time-efficient. SUMMARY

[0004] In view of the above technical problems existing in the prior art, the present application provides a cable-controlled whipstock system, which can be lowered and set in one-trip drilling by cable delivery. In addition, the whipstock is lowered at a very fast speed by cable, which can save the tripping time.

[0005] The present application provides a cable-controlled whipstock system, comprising: a surface system, a whipstock configured to be fixed downhole and provided with a slope for guiding the drill string, bottom hole assembly and milling cone; The surface system delivers the whipstock to a predetermined position downhole through a cable, and exchanges information with the whipstock through wireless communication signals to control the whipstock to be set on the casing or separated.

[0006] The present application is further improved in that the whipstock comprises a whipstock body and a control assembly, and the upper end of the whipstock body is provided with the slope; The upper part of the whipstock body is provided with upper slips, and the lower part is provided with lower slips; The control assembly drives the upper slips and the lower slips to extend radially through a hydraulic device, so that the upper slips or the lower slips are set on the casing.

[0007] The present application is further improved in that the surface system comprises a drilling rig derrick, a surface signal transmitter and a surface signal receiver; The control assembly is provided with a processor, and the processor is connected with a downhole signal receiver and a downhole signal transmitter.

[0008] The hydraulic device is connected with an upper piston, which is in a conical, frustum or trapezoidal structure; The inner side of the upper slipper is provided with a taper or slope matched with the upper piston; When the hydraulic device drives the upper piston to move upward, the taper or slope pushes the upper slipper to move radially.

[0009] The hydraulic device is connected with a lower piston, which is in a conical, frustum or trapezoidal structure; The inner side of the lower slipper is provided with a taper or slope matched with the lower piston; When the hydraulic device drives the lower piston to move downward, the taper or slope pushes the lower slipper to move radially.

[0010] The outer surface of the upper slipper is provided with vertical grooves, and the outer surface of the lower slipper is provided with horizontal grooves.

[0011] The hydraulic device comprises a fluid reservoir, the upper end of which is connected with an upper expansion chamber through an upper hydraulic pipeline, and the lower end of which is connected with a lower expansion chamber through a lower hydraulic pipeline; The upper expansion chamber is connected with the upper piston, and when the liquid in the fluid reservoir enters the upper expansion chamber, the volume of the upper expansion chamber increases and pushes the upper piston to move upward; The lower expansion chamber is connected with the lower piston, and when the liquid in the fluid reservoir enters the lower expansion chamber, the volume of the lower expansion chamber increases and pushes the lower piston to move downward.

[0012] The upper hydraulic pipeline is provided with an upper hydraulic pump and an upper check valve, and the lower hydraulic pipeline is provided with a lower hydraulic pump and a lower check valve.

[0013] The fluid reservoir is provided with a pressure sensor.

[0014] The whipstock body is further provided with a repeater, which enhances the wireless communication signal between the ground signal transmitter, the ground signal receiver and the control assembly.

[0015] Compared with the prior art, the present application has the following advantages: The cable-driven electrically controlled directional drilling rig system according to the present invention can be installed and set up in a single drilling run using a cable-driven method. Furthermore, the cable can be installed into the directional drilling rig very quickly, saving drilling time. This invention enables efficient and safe setting up of the directional drilling rig during drilling window opening, and allows for real-time monitoring of downhole conditions during the setting up process, effectively saving time during tripping in and out of the well.

[0016] According to the cable-driven electrically controlled directional drilling system of the present invention, the windowing technology can effectively utilize existing wells to drill new wells, tap the potential of remaining oil, improve the recovery rate, achieve high production with fewer wells, reduce costs and increase efficiency, and has a broad application market in the revitalization of old wells in onshore oilfields, reuse of well slots on offshore platforms, handling of accident wells, and development of branch wells. Attached Figure Description

[0017] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, in which: Figure 1 The diagram shown is a structural schematic of a cable-driven electrically controlled directional diverter system according to an embodiment of the present invention, illustrating the state of the directional diverter being fed in. Figure 2 The diagram shown is a structural schematic of a cable-driven electrically controlled directional drilling system according to an embodiment of the present invention, illustrating the drilling state after the directional drilling device is fixed. Figure 3 The diagram shown is a structural schematic of a slant in one embodiment of the present invention; Figure 4 The diagram shown is a structural schematic of a control component according to an embodiment of the present invention; Figure 5 The diagram shown is a schematic representation of the connection structure between the hydraulic device and the lower piston according to an embodiment of the present invention, showing the lower piston in a retracted state; Figure 6 The diagram shows a connection structure of a hydraulic device and an upper piston according to an embodiment of the present invention, with the upper piston in an extended state.

[0018] The accompanying drawings are not drawn to scale.

[0019] The meanings of the reference numerals in the attached figures are as follows: 100. Azimuth Damper; 200. Surface System; 110. Azimuth Damper Body; 111. Upper Slip; 112. Lower Slip; 113. Inclined Surface; 114. Upper Piston; 115. Lower Piston; 120. Control Components; 121. Processor; 122. Downhole Signal Transmitter; 123. Downhole Signal Receiver; 124. Power Supply; 125. Repeater; 130. Hydraulic Unit; 131. Fluid Storage Tank; 13 2. Upper expansion chamber; 133. Lower expansion chamber; 134. Upper hydraulic pump; 135. Lower hydraulic pump; 136. Upper check valve; 137. Lower check valve; 138. Pressure sensor; 210. Drilling rig derrick; 220. Surface signal transmitter; 230. Surface signal receiver; 240. Cable; 250. Pin; 260. Drill collar; 270. Bottom drill string; 280. Milling cone; 300. Casing; 400. Wellbore. Detailed Implementation

[0020] To make the technical solutions and advantages of the present invention clearer, exemplary embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not an exhaustive list of all embodiments. Furthermore, without conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0021] As oilfield development time extends, old oil and gas wells in oilfields experience low production and face shutdown or abandonment. Casing windowing technology can effectively utilize existing wellbores to drill new wellbores, tap the potential of remaining oil, improve recovery rates, achieve high production with fewer wells, reduce costs and increase efficiency. It has a broad application market in the revitalization of old wells in onshore oilfields, reuse of well slots on offshore platforms, handling of accident wells, and development of branch wells.

[0022] In deep and ultra-deep wells, the inability to set up a single-run directional drilling rig often results in failure due to the reliability of the drilling fluid system and contaminants in the drilling fluid. While split-type directional drilling rigs offer higher reliability, the timeliness is limited because the directional drilling rig and window-opening tools are run in two separate runs.

[0023] To address the aforementioned problems, this invention provides an electrically controlled directional drilling system that can be lowered via an armored cable. This system allows for cable-driven lowering and installation in a single drilling run. Furthermore, the cable lowering speed is very fast, saving drilling time.

[0024] In such Figure 1 In the illustrated embodiment, a cable-driven electrically controlled slant system includes: The ground system 200 includes a drilling rig 210 and a communication system.

[0025] The directional drilling tool 100 is configured to be fixed downhole and has a ramp 113 that provides guidance for the drill string 260, the bottom drill string 270 and the milling tap 280.

[0026] The surface system 200 sends the directional device 100 to a predetermined position downhole via cable 240 and exchanges information with the directional device 100 via wireless communication signals. The surface system 200 feeds back the detected status information of the directional device 100 to the surface system 200. The surface system 200 controls the directional device 100 to sit on the casing 300 or detach from the casing 300 according to the status information.

[0027] In the cable-driven electrically controlled slant head system according to this embodiment, the slant head 100 is an electrically controlled slant head 100, capable of independent wireless control or cable 240 control. A signal transmitter and receiver are installed on the ground, and similarly, the control component 120 inside the slant head 100 also includes a signal transmitter, receiver, and signal processing device. This enables the slant head 100 to achieve real-time transmission with the ground, allowing for understanding of the slant head 100's specific operating conditions and abnormal situations, and timely feedback.

[0028] In one embodiment, the directional drilling rig 100 includes a directional drilling rig body 110 and a control assembly 120. The upper end of the directional drilling rig body 110 is provided with a ramp 113, which guides the drill string 260, bottom drill string 270, and milling cone 280. The ramp 113 of the directional drilling rig 100 deflects the direction of the milling cone 280 from its orientation in the previously drilled wellbore to a selected direction, guiding the cone to complete sidetracking along the trajectory provided by the ramp 113.

[0029] The upper part of the inclined plate body 110 is provided with an upper slip tooth 111, and the lower part is provided with a lower slip tooth 112. Both the upper slip tooth 111 and the lower slip tooth 112 are connected to the hydraulic device 130. The upper slip tooth 111 and the lower slip tooth 112 can extend and engage with the sleeve 300.

[0030] The control component 120 is capable of transmitting and receiving signals, and is capable of controlling the upper slip teeth 111 and lower slip teeth 112 to open and hang when the hydraulic device 130 is engaged.

[0031] In the cable-driven electrically controlled swashplate system according to this embodiment, a control assembly and a hydraulic device 130 are provided inside the swashplate 100. The independent hydraulic device 130 allows the swashplate 100 to be in a seated and pressurized state without relying on external hydraulic lines for control, thereby avoiding external factors that could cause malfunctions or abnormalities in the swashplate 100, thus improving the stability of the swashplate 100.

[0032] The hydraulic device 130 is equipped with a sealing component to ensure its airtightness. All connections of the hydraulic device 130 require sealing to ensure good sealing performance.

[0033] All hydraulic devices 130 must be connected to one or more processors 121 to ensure that the hydraulic devices can be operated by instructions from the processors 121.

[0034] In one embodiment, such as Figure 2 As shown, the ground system 200 includes a drilling rig 210, a ground signal transmitter 220, and a ground signal receiver 230. The drilling rig 210 is used to lower the directional drilling rig 100 down into the well.

[0035] The control component 120 of the directional controller 100 is equipped with a processor 121, which is connected to a downhole signal receiver 123 and a downhole signal transmitter 122. The control component 120 is also equipped with an independent power supply 124 to provide power to the processor 121, the downhole signal receiver 123 and the downhole signal transmitter 122.

[0036] The drilling rig derrick 210 is connected to the directional drilling rig 100 via a cable 240, and the directional drilling rig 100 is sent down into the well and reaches a predetermined position via the cable 240. During drilling, a casing 300 is installed in the wellbore to improve wellbore stability and protect the wellbore. The cable 240 is connected to the directional drilling rig 100 via a pin 250, which can be sheared downhole by fatigue shearing.

[0037] During drilling, in order to perform side-drilling downhole, the drill string must first be pulled out completely. Then, the drilling rig derrick 210 sends the directional drilling rig 100 downhole via cable 240. Once it reaches the predetermined position, the directional drilling rig 100 is guided to the predetermined azimuth using a MWD or gyro-directioning instrument. After reaching the predetermined position, a command is sent to the control device, which drives the hydraulic device 130 to set the directional drilling rig 100 in place. Then, the pin 250 is sheared by fatigue shearing, and the cable 240 is retrieved.

[0038] In another embodiment, the pull-off device can be a separate control module, replacing the pin 250, and is controlled and installed above the directional device 100. It is activated by a signal sent from the ground, and after activation, the cable can be pulled up to detach the ground from the downhole system.

[0039] One or more ground signal transmitters 220 and ground signal receivers 230 are installed on the ground. After reaching the predetermined position, the ground signal transmitter 220 can directly transmit commands to the control component 120 in the directional device 100. The control component 120 receives the command signal through the downhole signal receiver 123, and then the control component 120 controls the operation of the directional device 100 through the hydraulic device 130.

[0040] The ground signal receiver 230 can receive status signals transmitted by the directional rocker 100 control component 120 through the downhole signal transmitter 122, thereby achieving real-time reception of the directional rocker 100's operating status information. To prevent weak downhole signal transmission capabilities, a repeater 125 is installed inside the directional rocker 100 to enhance the wireless communication signals between the ground signal transmitter 220, the ground signal receiver 230, and the control component 120.

[0041] In a preferred embodiment, such as Figure 4 As shown, the control component 120 includes a processor 121, a downhole signal transmitter 122, and a downhole signal receiver 123, and also includes an independent power supply 124. The independent power supply 124 is preferably a lithium battery or other available high-temperature resistant battery.

[0042] The downhole signal transmitter 122 and downhole signal receiver 123 can receive signal commands from the surface and transmit the signals to the processor 121 to instruct the directional controller 100 to operate. Simultaneously, the operating status of the directional controller 100 is synchronized to the surface receiver via the downhole transmitter. Command signals include the status of the directional controller 100 components (e.g., "on" or "off"), the status of the hydraulic system 130, and the status of other components.

[0043] During overall operation, the upper slip tooth 111, lower slip tooth 112, and sealing assembly can all be controlled via cable 240 or wireless signal control, and the operating status can be returned to the ground. The independent power supply 124 can simultaneously power all components in the control assembly 120, and it also has the function of connecting to cable 240. When cable 240 is present, it powers all components through cable 240. After cable 240 is disconnected from the deflector 100, the independent power supply 124 becomes active.

[0044] In one embodiment, such as Figure 3 As shown, a hydraulic device 130 is provided inside the inclined body 110. An upper piston 114 is connected above the hydraulic device 130, and a lower piston 115 is connected below it.

[0045] The upper piston 114 and the lower piston 115 can extend and retract under the drive of the hydraulic device 130.

[0046] The upper piston 114 has a conical, frustum-shaped, or trapezoidal structure, while the inner side of the upper slip tooth 111 is provided with a conical or inclined surface that mates with the upper piston 114. The upper piston 114 and the upper slip tooth 111 are engaged by the conical or inclined surface. When the upper piston 114 moves upward, the upper slip tooth 111 is pushed to move radially by the conical or inclined surface.

[0047] After the hydraulic device 130 pumps hydraulic fluid into the upper piston 114, the upper piston 114 moves upward, thereby pushing the upper slip 111 to move radially and thus sit on the sleeve 300.

[0048] The lower piston 115 has a similar structure to the upper piston 114, but in the opposite direction, and is also conical, frustum-shaped, or trapezoidal. The inner surface of the lower slip tooth 112 is a sloped or concave conical surface, which can cooperate with the sloped or conical surface of the lower piston 115. After the hydraulic device 130 pumps hydraulic pressure into the lower piston 115, the lower piston 115 moves downward, thereby pushing the lower slip tooth 112 to move radially, thus sitting on the sleeve 300.

[0049] In one embodiment, the outer surface of the upper locking tooth 111 has vertical grooves to prevent excessive azimuth deviation caused by the rotation of the diagonal 100 after mounting. The outer surface of the lower locking tooth 112 has horizontal grooves to prevent excessive deviation of the predetermined position caused by the diagonal 100 falling off. In one embodiment, such as Figure 5 and Figure 6 As shown, the hydraulic device 130 includes a fluid reservoir 131. The upper end of the fluid reservoir 131 is connected to an upper expansion chamber 132 via an upper hydraulic line, and its lower end is connected to a lower expansion chamber 133 via a lower hydraulic line. The upper expansion chamber 132 is connected to the upper piston 114, and after the liquid in the fluid storage enters the upper expansion chamber 132, the volume of the upper expansion chamber 132 increases and pushes the upper piston 114 to move upward. The lower expansion chamber 133 is connected to the lower piston 115, and after the liquid in the fluid storage enters the lower expansion chamber 133, the volume of the lower expansion chamber 133 increases and pushes the lower piston 115 downward.

[0050] Preferably, the upper hydraulic pipeline is provided with an upper hydraulic pump 134 and an upper check valve 136, and the lower hydraulic pipeline is provided with a lower hydraulic pump 135 and a lower check valve 137.

[0051] In the cable-driven electrically controlled swashplate system according to this embodiment, the hydraulic unit 130 can receive instructions from the processor 121 in the control assembly 120. The hydraulic unit 130 can receive instructions to change the state of the internal hydraulic pump ("on" or "off" command), set the target pressure of the hydraulic pump, or any other command that can be executed by the hydraulic unit 130.

[0052] Different hydraulic unit 130 components are interconnected to ensure fluid communication between each hydraulic unit 130 component. The hydraulic unit 130 can change the state and output capacity of the hydraulic pump by receiving instructions from the control unit 120, thereby changing the position of the piston, ultimately causing the upper slip 111 and lower slip 112 to reach a predetermined position, or the hydraulic unit 130 can execute other commands.

[0053] The fluid reservoir 131 in the hydraulic device 130 stores fluid, such as hydraulic oil or other pressurized fluid, which is pumped into the expansion chamber by a hydraulic pump, thereby driving the piston to move.

[0054] During the piston's movement, the upper slip tooth 111 and lower slip tooth 112 are pushed to anchor on the body of the inclined device 100 through the conical or inclined surface. The piston and the upper and lower slip teeth 112 are in contact through the conical or inclined surface, and the piston's position determines the degree of opening of the upper slip tooth 111 and lower slip tooth 112.

[0055] In a preferred embodiment, the hydraulic device 130 includes a check valve that effectively prevents fluid in the hydraulic device 130 from flowing back from the expansion chamber to the hydraulic fluid reservoir 131. The hydraulic device 130 includes multiple pressure sensors 138 that can monitor the pressure of the hydraulic fluid. The monitored pressure value is transmitted to the processor 121 in the control component 120. The processor 121 transmits the pressure value signal to the ground signal receiver 230 for real-time monitoring. Once the window opening is completed, the inclinometer 100 can transmit a signal command, and the control component 120 will return the hydraulic fluid in the hydraulic device 130 to the fluid reservoir, thereby retracting the upper and lower locking teeth 112 and enabling the inclinometer 100 to be retracted.

[0056] According to the cable-driven electrically controlled directional drilling system described in this embodiment, the directional drilling rig 100 can be installed and set up in a single drilling run using cable 240. Furthermore, the cable 240 is installed into the directional drilling rig 100 very quickly, saving drilling time. This invention aims to enable efficient and safe setting up of the directional drilling rig 100 during drilling window opening, and to allow real-time monitoring of downhole conditions during the setting up process, effectively saving time during tripping in and out of the well.

[0057] The following description uses specific examples to illustrate the point.

[0058] Example 1 A cable-driven electrically controlled slant system includes: The ground system 200 includes a drilling rig 210 and a communication system.

[0059] The directional drilling tool 100 is configured to be fixed downhole and has a ramp 113 that provides guidance for the drill string 260, the bottom drill string 270 and the milling tap 280.

[0060] The surface system 200 sends the directional device 100 to a predetermined position downhole via cable 240 and exchanges information with the directional device 100 via wireless communication signals. The surface system 200 feeds back the detected status information of the directional device 100 to the surface system 200. The surface system 200 controls the directional device 100 to sit on the casing 300 or detach from the casing 300 according to the status information.

[0061] The specific location of the directional drilling rig 100 in the drilling system is as follows: Figure 2 As shown, the drilling system includes a surface system 200, such as a drilling rig 210, which can send the directional drilling rig 100 downhole via a cable 240 and reach a predetermined position. During drilling, a casing 300 is installed inside the wellbore to improve wellbore stability and protect the wellbore.

[0062] To enable side-drilling downhole, the drill string must first be pulled out completely. Then, the drilling rig sends the directional drilling rig 100 downhole via cable 240. Once it reaches the predetermined position, the directional drilling rig 100 is guided to the predetermined azimuth using a MWD or gyro-directioning instrument. After reaching the predetermined position, a command is sent to the control device. The control device then controls the directional drilling rig 100 to complete its mounting and finally cuts the pin 250 using fatigue shearing, allowing the cable 240 to be retrieved.

[0063] The lowest end of the cable 240 is provided with a weak point. When the drop system fails, the drop can be achieved by pulling the cable 240.

[0064] Multiple ground signal transmitters 220 and ground signal receivers 230 are installed on the ground. After reaching a predetermined position, the ground signal transmitters 220 can directly transmit commands to the control component 120 in the azimuth 100, thereby controlling the operation of the azimuth 100 through the control component 120. The control component 120 includes a downhole signal transmitter 122 and a downhole signal receiver 123 inside the azimuth 100. The downhole signal receiver 123 can receive status signals emitted by the control component 120 of the azimuth 100, thereby achieving real-time reception of the azimuth 100's operating status information. To prevent weak downhole signal transmission capabilities, a repeater 125 is installed inside the azimuth 100, which can forward and amplify signals. The repeater 125 is used to enhance the wireless communication signals between the ground signal transmitters 220, the ground signal receivers 230, and the control component 120.

[0065] like Figure 3 As shown, the inclined surface 113 of the directional tool 100 provides guidance for the drill string 260, bottom drill string 270BHA and milling cone 280. Its function is to deflect the direction of the milling cone 280 from its orientation in the previously drilled wellbore to the selected direction, guiding the cone to complete sidetracking on the trajectory provided by the inclined surface 113.

[0066] Figure 4 and Figure 5 The specific structure of the electrically controlled swashplate 100 is described in detail. The swashplate 100 has an independent hydraulic device 130, which can start and stop the swashplate 100 components, such as the upper slip 111 and the lower slip 112, multiple times. The swashplate 100 also has an independent power supply 124 to provide power to the control component 120.

[0067] The directional diverter body 110 is lowered into the well via cable 240. After reaching the predetermined position, the directional diverter 100 is inclined to the predetermined azimuth using a MWD or gyro-directioning device. Then, a command signal is sent to the control component 120 via a signal transmitter or cable 240. The control component 120 is equipped with a downhole signal transmitter 122, a downhole signal receiver 123, and a signal processor 121. The control component 120 sends a command to the hydraulic device 130. The piston in the hydraulic device 130 moves up and down, causing the upper and lower slip teeth 112, especially the lower slip tooth 112, to open and sit on the well casing 300. The outer surface of the upper slip tooth 111 has vertical grooves to prevent the directional diverter 100 from rotating after sitting and causing excessive azimuth deviation. The outer surface of the lower slip tooth 112 has horizontal grooves to prevent the directional diverter 100 from falling and causing excessive deviation from the predetermined position.

[0068] Figure 5The specific components of the control assembly 120 are shown. The control assembly 120 includes a downhole signal receiver 123, a downhole signal transmitter 122, a signal processor 121, and an independent power supply 124. The downhole signal transmitter 122 and the downhole signal receiver 123 can receive signal commands from the surface and transmit the signals to the signal processor 121 to instruct the directional rocker 100 to operate. At the same time, the operating status of the directional rocker 100 is synchronized to the surface receiver through the transmitter.

[0069] Command signals include the status of the inclinometer 100 component (e.g., "on" or "off"), the status of the hydraulic device 130, and the status of other components. During overall operation, the upper and lower slips and sealing components can be controlled via cable 240 or wireless signals, and the operating status can be reported back to the ground.

[0070] like Figure 6 As shown, the hydraulic unit 130 can receive instructions from the processor 121 in the control assembly 120. The hydraulic unit 130 can receive instructions to change the state of the internal hydraulic pump ("on" command or "off" command), set the target pressure of the hydraulic pump, or any other command that can be executed by the hydraulic unit 130.

[0071] Different hydraulic unit 130 components are interconnected to ensure fluid communication between each hydraulic unit 130 component. The hydraulic unit 130 can change the state and output capacity of the hydraulic pump by receiving commands from the control unit 120, thereby changing the position of the piston and ultimately causing the upper and lower slip teeth 112 to reach a predetermined position, or the hydraulic unit 130 can execute other commands. The upper and lower slip teeth 112 are anchored to the body of the deflector 100, the piston surface is in contact with the inner surface of the upper and lower slip teeth 112, and the movement position of the piston determines the degree of opening of the upper and lower slip teeth 112.

[0072] The hydraulic device 130 includes a check valve, which effectively prevents fluid in the hydraulic device 130 from flowing back from the expansion chamber to the hydraulic fluid storage tank 131. The hydraulic device 130 includes multiple pressure sensors 138 that can monitor the pressure of the hydraulic fluid. The monitored pressure value is transmitted to the processor 121 in the control component 120. The processor 121 transmits the pressure value signal to the ground receiver for real-time monitoring. Once the window opening is completed, the inclinometer 100 can transmit a signal command, and the control component 120 will return the hydraulic fluid in the hydraulic device 130 to the fluid storage tank, thereby retracting the upper and lower locking teeth 112 and enabling the inclinometer 100 to be retracted.

[0073] It should be understood that the embodiments disclosed herein are not limited to the specific structures, processing steps, or materials disclosed herein, but should be extended to equivalent substitutions of these features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0074] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0075] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0076] Certain terms are used throughout this application to refer to specific system components. As those skilled in the art will recognize, the same components may often be referred to by different names, and therefore this application is not intended to distinguish components that differ only in name and not in function. The terms "an embodiment" or "embodiment" used in the specification mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. Therefore, the phrase "an embodiment" or "embodiment" appearing throughout the specification does not necessarily refer to the same embodiment.

[0077] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

[0078] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and / or modifications falling within the scope of the invention, and all changes and / or modifications made according to embodiments of the invention should be covered within the protection scope of the invention.

Claims

1. A cable-driven electrically controlled directional diverter system, characterized in that, include: Ground system (200). Inclined tool (100), the inclined tool (100) is configured to be fixed downhole and provided with inclined surfaces (113) to provide guidance for drill string (260), bottom drill string (270) and milling tap (280); The ground system (200) sends the directional device (100) to a predetermined position downhole via a cable (240) and exchanges information with the directional device (100) via wireless communication signals to control the directional device (100) to sit or detach on the casing (300).

2. The cable-driven electrically controlled directional diverter system according to claim 1, characterized in that, The swashplate (100) includes a swashplate body (110) and a control assembly (120), and the swashplate (113) is provided at the upper end of the swashplate body (110). The upper part of the inclined body (110) is provided with an upper locking tooth (111), and the lower part is provided with a lower locking tooth (112). The control component (120) drives the upper slip tooth (111) and the lower slip tooth (112) to extend radially via a hydraulic device (130), thereby enabling the upper slip tooth (111) or the lower slip tooth (112) to be seated on the sleeve (300).

3. The cable-driven electrically controlled directional diverter system according to claim 2, characterized in that, The ground system (200) includes a drilling rig (210), a ground signal transmitter (220), and a ground signal receiver (230). The control component (120) is equipped with a processor (121), which is connected to a downhole signal receiver (123) and a downhole signal transmitter (122).

4. The cable-driven electrically controlled directional diverter system according to claim 3, characterized in that, An upper piston (114) is connected above the hydraulic device (130), and the upper piston (114) has a conical, frustum-shaped, or trapezoidal structure. The inner side of the upper slip tooth (111) is provided with a conical surface or inclined surface that mates with the upper piston (114); When the hydraulic device (130) drives the upper piston (114) to move upward, it pushes the upper slip tooth (111) to move radially through the conical surface or inclined surface.

5. The cable-driven electrically controlled directional diverter system according to claim 4, characterized in that, The lower piston (115) is connected below the hydraulic device (130), and the lower piston (115) has a conical, frustum-shaped or trapezoidal structure. The inner side of the lower slip tooth (112) is provided with a conical surface or inclined surface that mates with the lower piston (115); When the hydraulic device (130) drives the lower piston (115) to move downward, it pushes the lower slip tooth (112) to move radially through the conical surface or inclined surface.

6. The cable-driven electrically controlled directional diverter system according to claim 5, characterized in that, The outer surface of the upper locking tooth (111) is provided with vertical grooves; the outer surface of the lower locking tooth (112) is provided with horizontal grooves.

7. The cable-driven electrically controlled directional diverter system according to claim 6, characterized in that, The hydraulic device (130) includes a fluid reservoir (131), the upper end of which is connected to an upper expansion chamber (132) via an upper hydraulic line, and the lower end of which is connected to a lower expansion chamber (133) via a lower hydraulic line. The upper expansion chamber (132) is connected to the upper piston (114), and after the liquid in the fluid storage enters the upper expansion chamber (132), the volume of the upper expansion chamber (132) increases and pushes the upper piston (114) to move upward; The lower expansion chamber (133) is connected to the lower piston (115), and after the liquid in the fluid storage enters the lower expansion chamber (133), the volume of the lower expansion chamber (133) increases and pushes the lower piston (115) downward.

8. The cable-driven electrically controlled directional diverter system according to claim 6 or 7, characterized in that, An upper hydraulic pump (134) and an upper check valve (136) are installed on the upper hydraulic pipeline, and a lower hydraulic pump (135) and a lower check valve (137) are installed on the lower hydraulic pipeline.

9. The cable-driven electrically controlled directional diverter system according to claim 8, characterized in that, A pressure sensor (138) is provided on the fluid reservoir (131).

10. The cable-driven electrically controlled directional diverter system according to any one of claims 3 to 9, characterized in that, The swashplate body (110) is also equipped with a repeater (125) to enhance the wireless communication signal between the ground signal transmitter (220), the ground signal receiver (230) and the control component (120).

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