Open-window drilling integrated steering device
By designing an integrated steering device for opening windows and drilling, the characteristics of the abrasive jet and steering device are used to realize the integration of casing windows and drilling operations under ultra-short radius conditions, solving the problems of low efficiency and high cost in the prior art, and improving construction efficiency and effect.
Patent Information
- Application Number
- CN202310506461.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-05-06
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2043-05-06
AI Technical Summary
The prior art is difficult to achieve efficient integration of casing window opening and drilling operations under ultra-short radius conditions, resulting in low efficiency, high cost and poor opening effect.
An integrated steering device for opening windows and drilling is designed, and window opening is opened using abrasive jet. Combined with the characteristics of the steering device, concentric switching between the window opening channel and the drilling channel is realized. Through an integrated mechanism, the window opening and drilling operations are completed in one drilling downhole.
It improves the efficiency and effect of window opening and drilling operations, simplifies the construction process, reduces the cost and risks of operation, and realizes the efficient integration of casing window opening and drilling.
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Figure CN116291280B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of oil and gas drilling equipment, and particularly to an integrated windowing and drilling steering device. Background Art
[0002] The description in this part only provides background information related to the disclosure of the present invention and does not constitute prior art.
[0003] Ultra-short radius sidetracking horizontal well drilling technology (also known as radial horizontal well drilling technology) refers to drilling one or more horizontal wellbores distributed radially along the radial direction by turning from the vertical direction to the horizontal direction under ultra-short radius conditions (that is, the radius is less than or equal to 300 mm) in a vertical wellbore, and constructing a three-dimensional oil and gas migration network of "multiple branches in one layer and multiple layers in one well" in the reservoir, which can greatly improve the oil and gas migration efficiency and the single well production. Therefore, the development of the steering device is the core difficulty of this technology. The previously studied steering devices have successively solved problems such as direction change under ultra-short radius conditions, steering in the casing, and reducing the resistance of the operation pipeline passing through. However, there are still problems such as the hydraulic power transmitted to the wellbore being limited due to the small track size, resulting in difficult casing windowing, and problems such as low efficiency, high cost, and poor hole-opening effect caused by the need to lower the pipe string twice for windowing and drilling operations. The research and development of high-performance steering devices have become the key problems restricting the development of hydraulic jet radial horizontal well technology.
[0004] It should be noted that the above introduction of the technical background is only for the convenience of clearly and completely explaining the technical solution of the present invention and facilitating the understanding of those skilled in the art. It cannot be considered that the above technical solutions are well-known to those skilled in the art just because these solutions are described in the background art part of the present invention. Summary of the Invention
[0005] The purpose of the present invention is to provide an integrated windowing and drilling steering device, which solves the problem of integrated construction operations of downhole windowing operations and steering drilling operations, simplifies the construction process, and more efficiently realizes casing windowing and jet drilling.
[0006] The above implementation purpose of the present invention is mainly achieved by the following technical solutions:
[0007] The present invention provides an integrated windowing and drilling steering device, comprising:
[0008] A gripper having a cavity;
[0009] A steering device passing through the cavity, wherein a sliding track and a drilling track communicating with the sliding track are provided in the steering device, and a windowing hole communicating with the sliding track is opened on the side wall of the steering device;
[0010] An integrated mechanism is axially movably disposed in a sliding track. The integrated mechanism has a windowing channel and a drilling channel arranged at intervals along its moving direction. Among them, in the state where the windowing and drilling integrated steering device is in the windowing operation state, the windowing channel can be correspondingly communicated with the windowing hole. In the state where the windowing and drilling integrated steering device is in the drilling operation state, the windowing hole can be connected to the drilling track through the drilling channel.
[0011] In a specific embodiment, the sliding track has a first track and a second track that are connected and communicated. The integrated mechanism is located in the first track, and an elastic member is provided in the second track. The integrated mechanism can axially move in the first track under the action of the elastic member.
[0012] In a specific embodiment, a first channel and a second channel are arranged side by side at the top of the gripper. The first channel faces the sliding track, and the second channel faces the drilling track. In the state where the second channel is blocked and the first channel is pressurized, the integrated mechanism can move in the sliding track until the windowing channel is connected to the windowing hole.
[0013] Among them, a guiding member is provided on the upper part of the gripper. The guiding member has an inclined surface that is inclined towards the second channel. A ball seat is provided in the second channel, and a blocking ball guided by the inclined surface can be blocked on the ball seat.
[0014] Among them, the integrated mechanism has a main body and a guiding tube connected to the main body. The windowing channel and the drilling channel are spaced apart on the main body. The guiding tube is connected to the windowing channel and can be disposed in the first channel.
[0015] In a specific embodiment, a drill bit mechanism is installed at the bottom of the guiding tube, and the drill bit mechanism is located in the windowing channel.
[0016] In a specific embodiment, along the direction from the wellhead to the bottom of the well, the windowing channel is located above the drilling channel, or the windowing channel is located below the drilling channel.
[0017] In a specific embodiment, a fixing member is installed in the first channel, and the fixing member has a vertical track that can accommodate the guiding tube.
[0018] In a specific embodiment, a connecting member is connected to the upper end of the gripper. The upper end of the connecting member can be connected to an oil pipe. A guiding channel and a receiving cavity that are connected and communicated are provided inside the connecting member, and the guiding member is located in the receiving cavity.
[0019] In a specific embodiment, in the state where the second channel is not pressurized, the integrated mechanism can move in the sliding track until the drilling channel is respectively connected to the windowing hole and the drilling track.
[0020] Compared with the prior art, the technical solution of the present invention has the following features and advantages: The windowing mode of the integrated windowing and drilling steering device provided in this application mainly uses abrasive jets for windowing. Combining with the characteristics of the steering device, it can effectively ensure the concentricity of the rotary abrasive jet casing windowing and the windowing channel. Under the condition that the windowing bit is not perpendicular to the casing, the hole opening effect is good, the efficiency is high, and the hole diameter is large. Moreover, the device of this application only needs to trip the pipe string once to drill a radial branch underground. The windowing and drilling can switch modes for operation, simplifying the construction process, improving the operation efficiency, and reducing the operation cost and risk. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 is a schematic structural diagram of the drilling process of the integrated windowing and drilling steering device of the present invention;
[0022] Figure 2 is a schematic structural diagram of the windowing process of the integrated windowing and drilling steering device of the present invention;
[0023] Figure 3 is a perspective view of the gripper of the integrated windowing and drilling steering device of the present invention;
[0024] Figure 4 is a sectional view of the gripper of the integrated windowing and drilling steering device of the present invention;
[0025] Figure 5 is a perspective view of the steering device of the integrated windowing and drilling steering device of the present invention;
[0026] Figure 6 is a sectional view of the steering device of the integrated windowing and drilling steering device of the present invention;
[0027] Figure 7 is a front view of the integrated mechanism of the integrated windowing and drilling steering device of the present invention;
[0028] Figure 8 is a sectional view of the integrated mechanism of the integrated windowing and drilling steering device of the present invention;
[0029] Figure 9 is a front view of the spring of the integrated windowing and drilling steering device of the present invention;
[0030] Figure 10 is a perspective view of the fixing member of the integrated windowing and drilling steering device of the present invention;
[0031] Figure 11 is a sectional view of the fixing member of the integrated windowing and drilling steering device of the present invention;
[0032] Figure 12 is a perspective view of the guiding member of the integrated windowing and drilling steering device of the present invention;
[0033] Figure 13 Cross-sectional view of the guide member of the integrated windowing and drilling steering device of the present invention;
[0034] Figure 14 Front view of the plugging ball of the integrated windowing and drilling steering device of the present invention;
[0035] Figure 15 Cross-sectional view of the connecting member of the integrated windowing and drilling steering device of the present invention.
[0036] Explanation of the reference numerals in the attached drawings:
[0037] 1. Clamp; 11. Cavity; 12. First channel; 13. Second channel; 14. Ball seat;
[0038] 2. Steering device; 21. Windowing hole; 22. Drilling track; 23. Sliding track; 231. First track; 232. Second track;
[0039] 3. Integrated mechanism; 31. Windowing channel; 32. Drilling channel; 33. Base; 34. Guide tube; 35. Bit mechanism; 36. Body;
[0040] 4. Elastic member;
[0041] 5. Fixing member; 51. Vertical track;
[0042] 6. Guide member; 61. Vertical channel; 62. Inclined plane;
[0043] 7. Plugging ball;
[0044] 8. Connecting member; 81. Guide channel; 82. Accommodating cavity. Detailed implementation manners
[0045] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0046] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.
[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs. The terms used in the description of the present invention herein are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0048] An abrasive water jet is a liquid-solid two-phase medium jet formed by mixing abrasive with water at high pressure and high flow rate, and has wide applications in downhole rock breaking, industrial cutting, etc. Due to the strong cutting and window-breaking ability of the abrasive jet on objects under high pressure, when using the abrasive jet for window-opening in the horizontal well construction technology, compared with the traditional casing internal radial window-opening tool, a larger area of complete cutting surface can be opened, improving the operation efficiency. The window-opening mode of the present invention mainly utilizes the abrasive jet for window-opening.
[0049] As Figure 1 and Figure 2 shown, the present application provides a window-opening and drilling integrated steering device, comprising:
[0050] A gripper 1, having a cavity 11;
[0051] A steering gear 2, inserted into the cavity 11, wherein a sliding track 23 and a drilling track 22 communicating with the sliding track 23 are arranged inside the steering gear 2, and a window-opening hole 21 communicating with the sliding track 23 is formed on the side wall of the steering gear 2;
[0052] An integrated mechanism 3, axially movably inserted into the sliding track 23, and the integrated mechanism 3 has a window-opening channel 31 and a drilling channel 32 arranged at intervals along its moving direction; wherein, when the window-opening and drilling integrated steering device is in the state of window-opening operation, the window-opening channel 31 can be correspondingly communicated with the window-opening hole 21; when the window-opening and drilling integrated steering device is in the state of drilling operation, the window-opening hole 21 can be communicated with the drilling track 22 through the drilling channel 32.
[0053] The window-opening and drilling integrated steering device provided by the present invention can, through the switching of the integrated mechanism 3 mode, complete the window-opening operation and the drilling operation at a predetermined position in one trip, reducing the number of trips and improving the operation efficiency of the sidetracking radial well; at the same time, with the aid of the integrated mechanism 3, it can effectively ensure that the operation centers of the abrasive jet for casing window-opening operation and drilling operation are the same, optimizing the positioning process.
[0054] Specifically, as Figure 3 and Figure 4As shown, the gripper 1 is cylindrical in shape, and the cavity 11 is generally rectangular parallelepiped-shaped. The cavity 11 penetrates the gripper 1 along the radial direction of the gripper 1. At the top of the gripper 1, a first channel 12 and a second channel 13 are arranged side by side. One end of the first channel 12 opens at the top of the gripper 1, and the other end of the first channel 12 opens at the top of the cavity 11; one end of the second channel 13 opens at the top of the gripper 1, and the other end of the second channel 13 opens at the top of the cavity 11.
[0055] As Figure 5 and Figure 6 shown, the deflector 2 is generally rectangular parallelepiped-shaped, and its interior includes a vertical sliding track 23 arranged along the axial direction of the deflector 2. The upper end of the sliding track 23 is open and is used to communicate with the first channel 12 of the gripper 1. The interior of the deflector 2 also includes a drilling track 22, and the drilling track 22 is an arc-shaped track. Its upper end can communicate with the second channel 13 of the gripper 1, and the lower end of the drilling track 22 can communicate with the sliding track 23. The sliding track 23 is arranged close to one side edge of the deflector 2, and a window opening 21 is provided on this side edge of the deflector 2, and the window opening 21 communicates with the sliding track 23.
[0056] In this embodiment, the side edge of the deflector 2 is taken as the forward direction, and the deflector 2 can be placed into or passed through the cavity 11 along the radial direction of the gripper 1. In the state where the deflector 2 and the gripper 1 are installed, the deflector 2 and the gripper 1 cooperate to form a complete columnar body. In this embodiment, the gripper 1 and the deflector 2 can be fixedly installed together by welding. Of course, in other embodiments, the gripper 1 and the deflector 2 can also be assembled by means such as rivets, magnetic connection or mechanical connection, which is not limited here.
[0057] As Figure 7 and Figure 8 shown, the integrated mechanism 3 is a mode switching mechanism of the windowing and drilling integrated steering device. The integrated mechanism 3 has a body 36 and a guide tube 34 connected to the body 36. Along the axial direction of the deflector 2, a windowing channel 31 and a drilling channel 32 are arranged at intervals on the body 36. The windowing channel 31 is an inclined channel at a certain angle with the axial direction of the wellbore pipe. One port of the windowing channel 31 is an opening on the body 36 of the integrated mechanism 3, and the other port of the windowing channel 31 is connected to the guide tube 34 on the integrated mechanism 3, and the bottom of the guide tube 34 communicates with the windowing channel 31. In this embodiment, a rotary bit mechanism 35 is installed in the windowing channel 31 to provide rotary jet flow during windowing operations. The guide tube 34 and the windowing channel 31 constitute a complete windowing operation channel in the integrated mechanism 3. In this embodiment, the drilling channel 32 is an arc-shaped channel for cooperating with the steering of the drilling tool. The cross-sectional shape of the drilling channel 32 is circular, and this application does not limit this.
[0058] In this embodiment, the integrated mechanism 3 is inserted into the sliding track 23 of the steering device 2 through the first channel 12 of the gripper 1. The outer shape of the body 36 of the integrated mechanism 3 matches the internal shape of the sliding track 23, so that the integrated mechanism 3 can stably slide along the axial direction of the steering device 2 within the sliding track 23. When the windowing drilling integrated steering device of the present invention performs windowing operations, the integrated mechanism 3 moves to the corresponding position for windowing operations in the sliding track 23, and the windowing channel 31 of the integrated mechanism 3 corresponds to and communicates with the windowing hole 21 of the steering device 2, forming a complete jet channel for windowing operations. When the windowing drilling integrated steering device of the present invention performs drilling operations, the integrated mechanism 3 moves to the corresponding position for drilling operations in the sliding track 23, the windowing hole 21 of the steering device 2 corresponds to and communicates with the drilling channel 32 of the integrated mechanism 3, and the other end of the drilling channel 32 corresponds to and communicates with the drilling track 22 of the steering device 2.
[0059] According to a specific embodiment of the present invention, as Figure 6 shown, the sliding track 23 has a first track 231 and a second track 232 that are connected and communicate with each other. The integrated mechanism 3 is located within the first track 231, and an elastic member 4 is provided within the second track 232. The integrated mechanism 3 can axially move within the first track 231 under the action of the elastic member 4.
[0060] The integrated mechanism 3 of the present invention can achieve axial movement within the first track 231 by cooperating with the elastic member 4, which is beneficial for quickly adjusting the windowing mode and drilling mode of the windowing drilling integrated steering device. Its structure is simple, the installation is convenient, and the maintainability is strong. Combining the characteristics of the windowing drilling integrated steering device, it can effectively ensure that the drill bit mechanism 35 of the rotary abrasive jet is concentric with the windowing channel 31. When the drill bit mechanism 35 and the casing are not perpendicular during windowing operations, the hole opening effect is better, the efficiency is higher, and the hole diameter is larger.
[0061] According to a specific embodiment of the present invention, along the direction from the wellhead to the bottom of the well, the windowing channel 31 is located above the drilling channel 32, or the windowing channel 31 is located below the drilling channel 32.
[0062] The windowing drilling integrated steering device provided by the present invention can design different positional relationships between the windowing channel 31 and the drilling channel 32 according to the different actual pipe diameters used, which is beneficial for applying this invention to different construction scenarios and has wide applicability.
[0063] As Figure 1 and Figure 2As shown, in one embodiment, in a radial horizontal well, considering the smaller turning radius of the drilling pipeline required for the radial horizontal well, the windowed channel 31 is located above the drilling channel 32 in the direction from the wellhead to the bottom of the well. Of course, in other non-radial horizontal well embodiments, the windowed channel 31 may be located above the drilling channel 32 in the direction from the wellhead to the bottom of the well, or the windowed channel 31 may be located below the drilling channel 32, without limitation.
[0064] In this embodiment, the window channel 31 is located above the drilling channel 32 in the direction from the wellhead to the bottom of the well. Figure 8 and Figure 9 As shown, the elastic member 4 can be a spring. A base 33 is connected to the lower portion of the integrated mechanism 3. After being placed in the second track 232, one end of the spring can abut against the base 33 of the integrated mechanism 3, allowing the body 36 of the integrated mechanism 3 to move axially within the first track 231 under the action of the spring. Specifically, the inner diameter and shape of the second track 232 are adapted to the outer diameter and shape of the spring, so that the elastic compression or elastic extension of the spring can be relatively controlled to coincide with or be parallel to the axial direction of the second track 232, thereby facilitating smooth movement of the integrated mechanism 3 within the sliding track 23. The elastic member 4 in the second track 232 functions to drive the body 36 of the integrated mechanism 3 to move axially within the first track 231. Of course, in other embodiments, the elastic member 4 can also employ other existing disclosed technologies that would be apparent to those skilled in the art, such as elastic cords, magnetic elements, or electrically controlled movement.
[0065] Please refer to Figure 10 and Figure 11 In one embodiment, a fixing member 5 is installed within the first channel 12 of the clamp 1. The fixing member 5 has a rectangular main body with narrow sides that are generally curved, and can be installed in conjunction with the inner cavity of the first channel 12. A cylindrical vertical track 51 is formed inside the fixing member 5, and the guide tube 34 of the integrated mechanism 3 can be inserted into this vertical track 51. When the body 36 of the integrated mechanism 3 moves axially within the first track 231, the guide tube 34 can move axially with the body 36 within the vertical track 51.
[0066] According to one embodiment of the present invention, a guide member 6 is provided on the upper part of the clamp 1, and the guide member 6 has an inclined surface 62 inclined toward the second channel 13. A ball seat 14 is provided in the second channel 13, and the blocking ball 7 guided by the inclined surface 62 can be blocked on the ball seat 14.
[0067] The present invention can change the internal pressure of the window drilling integrated steering device by setting a guide member 6 and using a sealing ball 7, so that the integrated mechanism 3 and the elastic member 4 can switch between the window opening mode and the drilling mode under the action of the pressure change, thereby achieving the purpose of controlling the mode switching of the downhole device on the well, and improving the convenience and efficiency of the use of the entire device.
[0068] Specifically, such as Figure 2 、 Figures 12 to 14 As shown, the guide member 6 is generally square, with narrow sides on both sides being arc-shaped. The guide member 6 is located at the upper portion of the clamp 1, and an inclined slope 62 is formed inside the guide member 6. The inclined direction of the slope 62 is toward the second channel 13 of the clamp 1, so as to guide the sealing ball 7 to roll toward the second channel 13. In this embodiment, an axial vertical channel 61 is provided on the inclined surface 62 of the guide member 6. One end of the vertical channel 61 opens on the inclined surface 62, and the other end of the vertical channel 61 is connected to the first channel 12 of the clamp 1. The opening size of the vertical channel 61 is smaller than the diameter size of the sealing ball 7 to prevent the sealing ball 7 from falling into the vertical channel 61. In this embodiment, a ball seat 14 is provided in the second channel 13. The ball seat 14 has a channel that allows drilling pipelines, liquids and gases to pass through. The ball seat 14 is used to place the sealing ball 7.
[0069] In this embodiment, when the blocking ball 7 falls onto the ball seat 14 , pressure is applied from the ground, and the upper opening of the second channel 13 is subjected to pressure. Under the action of pressure, the blocking ball 7 can form a sealed state with the second channel 13 .
[0070] like Figure 15 As shown, in one embodiment, the upper end of the clamp 1 is connected to a connector 8. Connector 8 is generally cylindrical and can be threadedly connected to the oil pipe. The lower end of connector 8 is welded to the clamp 1. Connector 8 has a guide channel 81 and a receiving chamber 82 interconnected within it, with guide member 6 located within receiving chamber 82.
[0071] In order to more clearly reveal the specific motion switching process of the window opening and drilling integrated steering device provided by the present invention during the complete underground operation, the window opening operation and the drilling operation, the following will be combined with Figure 1 and Figure 2 , for detailed description:
[0072] When performing the window opening operation, the integrated window opening and drilling steering device of the present invention is installed on the oil pipe, and the integrated window opening and drilling steering device is lowered into the target layer through the oil pipe. The orientation is adjusted, and the window hole 21 is aligned with the position where the casing needs to be windowed. The sealing ball 7 is dropped through the ground, and the sealing ball 7 enters the guide channel 81, the accommodating cavity 82, the inclined surface 62 of the guide member 6, the second channel 13 in sequence, and finally falls on the ball seat 14.
[0073] As shown Figure 2 in the figure, water is injected into the guiding channel 81 of the connector 8 from the ground to apply pressure, so that the plugging ball 7 and the second channel 13 form a closed state. At this time, with the continuous injection of water, the integrated mechanism 3 moves downward under the action of the water injection pressure and compresses the elastic member 4 until the lower end plane of the integrated mechanism 3 coincides with the bottom plane of the first track 231. At this time, the window opening channel 31 of the integrated mechanism 3 is connected to the window opening hole 21, and the preparatory work for the window opening operation is completed. When the window opening operation is carried out, abrasive is injected from the ground through the oil pipe. The abrasive enters the guiding pipe 34 of the integrated mechanism 3 through the vertical track 51 of the fixing member 5 and is ejected from the window opening hole 21 in the form of a rotating abrasive jet through the drill bit mechanism 35 to complete the window opening operation at the target position of the casing.
[0074] After the window opening operation is completed, the water injection pressure from the ground stops. At this time, the pressure in the internal channel of the window opening and drilling integrated steering device decreases. The elastic member 4 elongates under the action of the elastic restoring force, causing the integrated mechanism 3 to move upward in the first track 231 until the window opening hole 21 is connected to the drilling track 22 of the steering device 2 and the drilling channel 32 of the integrated mechanism 3. At this time, drilling operations can be carried out. Before that, backwashing is carried out by injecting fluid into the annulus between the oil pipe and the casing. The fluid enters the interior of the window opening and drilling integrated steering device from the window opening hole 21 and moves upward along the complete drilling operation channel, causing the plugging ball 7 to return to the ground.
[0075] During the drilling operation, a drilling tool is lowered from the ground. Through the complete drilling operation channel, that is, the drilling tool passes through the guiding channel 81 and enters the accommodating cavity 82, and then enters the second channel 13, so that the drilling tool can complete steering in the drilling track 22 and the drilling channel 32, reach the target position corresponding to the casing window opening, and carry out the drilling operation to complete the entire drilling operation process.
[0076] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.
Claims
1. An integrated windowing and drilling steering device, characterized in that Comprising: A gripper having a cavity; A steering device inserted into the cavity. A sliding track and a drilling track communicating with the sliding track are provided in the steering device, and a window opening hole communicating with the sliding track is formed in the side wall of the steering device; An integrated mechanism axially movably inserted into the sliding track. The integrated mechanism has a window opening channel and a drilling channel arranged at intervals along its moving direction. Wherein, when the window opening and drilling integrated steering device is in the state of window opening operation, the window opening channel can be correspondingly communicated with the window opening hole; when the window opening and drilling integrated steering device is in the state of drilling operation, the window opening hole can be communicated with the drilling track through the drilling channel; The sliding track has a first track and a second track communicating with each other. The integrated mechanism is located in the first track, and an elastic member is provided in the second track. The integrated mechanism can axially move in the first track under the action of the elastic member; The top of the gripper is provided with a first channel and a second channel side by side. The first channel faces the sliding track, and the second channel faces the drilling track. When the second channel is blocked and the first channel is pressurized, the integrated mechanism can move in the sliding track until the window opening channel is communicated with the window opening hole; The integrated mechanism has a body and a guiding tube connected to the body. The window opening channel and the drilling channel are arranged at intervals on the body. The guiding tube is communicated with the window opening channel and can be inserted into the first channel; 2. The integrated windowing and drilling steering device according to claim 1, characterized in that A guiding member is provided on the upper part of the gripper. The guiding member has an inclined surface inclined towards the second channel, and a ball seat is provided in the second channel. A blocking ball guided by the inclined surface can block on the ball seat; 3. The integrated windowing and drilling steering device according to claim 1, wherein, A drill bit mechanism is installed at the bottom of the guiding tube, and the drill bit mechanism is located in the window opening channel; 4. The integrated windowing and drilling steering device according to claim 1 or 3, characterized in that Along the direction from the wellhead to the bottom of the well, the window opening channel is located above the drilling channel, or the window opening channel is located below the drilling channel; 5. The integrated windowing and drilling steering device according to claim 1, wherein A fixing member is installed in the first channel, and the fixing member has a vertical track capable of accommodating the guiding tube; 6. The integrated windowing and drilling steering device according to claim 2, wherein The upper end of the gripper is connected with a connecting member. The upper end of the connecting member can be connected with an oil pipe. A guiding channel and an accommodating cavity communicating with each other are provided inside the connecting member, and the guiding member is located in the accommodating cavity; 7. The integrated windowing and drilling steering device according to claim 1, characterized in that When the second channel is not pressurized, the integrated mechanism can move in the sliding track until the drilling channel is respectively communicated with the window opening hole and the drilling track.
Citation Information
Patent Citations
Drilling and completion integration device and method using coiled tubing carrying sieve tubes for sidetracking
CN104895498A
Drilling window opening tool for horizontal well underground positioning and angle fixing
CN201915876U