Integrated whipstock pressure transmitting structure and coiled tubing windowing device

Abstract

The utility model relates to the technical field of windowing devices, and provides an integrated whipstock pressure transmitting structure and a coiled tubing windowing device, in oil exploitation operation, a coiled tubing conveys hydraulic oil to a circulating joint, and the circulating joint conveys oil to a connecting oil pipe. Hydraulic oil enters the first oil inlet cavity through the oil inlet of the washing cone and then enters the connecting cavity of the connecting bolt through the oil outlet. And the oil in the connecting cavity continues to flow, enters the second oil inlet cavity of the whipstock and finally reaches the expandable fixing seat. According to the technical scheme, the problem that in the prior art, an oil pipe is broken due to rotation of a washing cone is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of window opening devices, specifically to an integrated guide pressure transmission structure and a continuous tubing window opening device. Background Technology

[0002] In the field of oil extraction, drilling devices are used to drill into the ground. However, after one oil well is completed, it is necessary to drill in the adjacent areas. Therefore, a guide pipe is needed to guide the drilling in other directions. Existing drilling devices generally include coiled tubing, a screw drill bit, a drilling cone, and a guide pipe. The coiled tubing is used to deliver hydraulic oil downwards, the screw drill bit provides the power for the rotation of the drilling cone, and the drilling cone is used for drilling. Generally, the drilling cone and the guide pipe are connected by connecting bolts. The fixed seat at the bottom of the guide pipe needs to be connected to the tubing for oil supply, which expands to fix the guide pipe. The screw drill bit drives the drilling cone to rotate. Because the guide pipe is fixed, the drilling cone will disconnect from the guide pipe. However, during the disconnection process, the connecting tubing will also disconnect, which is very inconvenient. Therefore, we need an integrated guide pipe pressure transmission structure and a coiled tubing drilling device to solve the above technical problems. Utility Model Content

[0003] This utility model proposes an integrated guide vane pressure transmission structure and a continuous tubing window opening device, which solves the problem that the tubing will break when the wash cone rotates in related technologies.

[0004] The technical solution of this utility model is as follows:

[0005] An integrated guide cone pressure transmission structure includes a washing cone and a connecting oil pipe disposed on the washing cone. The connecting oil pipe is used for oil supply. The washing cone has a first oil inlet chamber and an oil inlet. The connecting oil pipe communicates with the first oil inlet chamber through the oil inlet. It also includes...

[0006] The guide device has an expandable base and a second oil inlet chamber that communicates with the base.

[0007] A connecting bolt passes through the wash cone and the guide vane, and the connecting bolt has a connecting cavity that connects the first oil inlet cavity and the second oil inlet cavity.

[0008] As a further technical solution, the connecting bolt and the connecting oil pipe are located on both sides of the washing cone, the first oil inlet chamber is an annular cavity, the washing cone also has an oil outlet, the oil inlet and the oil outlet are located on both sides of the washing cone, the oil inlet and the oil outlet are both connected to the first oil inlet chamber, and the oil outlet is used to connect the connecting cavity and the first oil inlet chamber.

[0009] As a further technical solution, the second oil inlet chamber includes a second annular cavity and an oil delivery cavity. The second annular cavity is used to communicate with the connecting cavity of the connecting bolt, and the oil delivery cavity is used to communicate with the second annular cavity and the fixing seat.

[0010] As a further technical solution, the washing cone has a threaded groove that communicates with the first oil inlet chamber, and the connecting bolt has a threaded portion that communicates with the threaded groove. The threaded portion is located between the inlet end of the connecting chamber and the outlet end of the connecting chamber.

[0011] An integrated guideway coiled tubing window opening device includes any one of the integrated guideway pressure transmission structures described above; and also includes,

[0012] A screw drill bit, wherein the washing cone is rotatably mounted on the screw drill bit, and the washing cone is located at the bottom of the screw drill bit.

[0013] A circulation connector is provided, which is connected to the top of the screw drill bit. The circulation connector is used to connect the coiled tubing, which is used for oil supply. The circulation connector is used to connect the coiled tubing and the connecting tubing.

[0014] As a further technical solution, the fixed base is located at the bottom of the guide, and the guide also has a guide slope, which forms an angle with the vertical direction and is used for sliding at the bottom of the washing cone.

[0015] The beneficial effects of the embodiments disclosed herein are as follows:

[0016] This invention, featuring an integrated guide vane pressure transmission structure and a coiled tubing window-opening device, is primarily applied in the oil extraction field, particularly in operations requiring a change in the drilling direction of an oil well. For example, when the oil resources of an oil well are nearing depletion and a new well needs to be opened nearby to increase oil production, this device can be used for window opening. During oil extraction, the coiled tubing delivers hydraulic oil to the circulation joint, which then transfers the oil to the connecting tubing. The hydraulic oil enters the first inlet chamber through the inlet of the guide vane, and then passes through the outlet into the connecting bolt's connecting chamber. The oil in the connecting chamber continues to flow, entering the second inlet chamber of the guide vane, and finally reaching the expandable fixed seat. When drilling to the side is required, the screw drill bit drives the guide vane to rotate. Because the guide vane is fixed by the fixed seat, the guide vane rotates relative to the guide vane, achieving the window opening operation. During this process, due to the integrated pressure transmission structure, the connecting tubing remains connected, ensuring a continuous and stable oil supply. This achieves a continuous and stable oil supply, avoiding operational interruptions caused by disconnected connecting tubing and improving extraction efficiency. The integrated pressure transmission structure simplifies the complexity of the equipment and reduces the probability of failure. It allows for more precise control of the guide vane's fixation and the cone's rotation, improving the accuracy and reliability of window opening operations. This reduces equipment maintenance costs and repair time, thereby increasing the overall economic efficiency of the mining operation. Attached Figure Description

[0017] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0018] Figure 1 This is a schematic diagram of the window opening device of this utility model;

[0019] Figure 2 This utility model Figure 1 Enlarged view of a portion of point A in the middle;

[0020] Figure 3 This utility model Figure 1 Enlarged view of a section at point B in the middle;

[0021] Figure 4 This is a schematic diagram of the connecting bolt structure of this utility model;

[0022] In the diagram: 1. Washing cone, 2. Connecting oil pipe, 101. First oil inlet chamber, 102. Oil inlet, 3. Guide slant, 301. Fixed seat, 302. Second oil inlet chamber, 4. Connecting bolt, 401. Connecting cavity, 103. Oil outlet, 303. Second annular cavity, 304. Oil delivery cavity, 104. Threaded groove, 402. Threaded part, 5. Continuous oil pipe, 6. Screw drill bit, 7. Circulation joint, 305. Guide slant. Detailed Implementation

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0024] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0025] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Example 1

[0028] Reference Figures 1-4 This first embodiment of the present invention proposes an integrated guide pressure transmission structure, including a washing cone 1 and a connecting oil pipe 2 disposed on the washing cone 1. The connecting oil pipe 2 is used for oil supply. The washing cone 1 has a first oil inlet chamber 101 and an oil inlet 102. The connecting oil pipe 2 is connected to the first oil inlet chamber 101 through the oil inlet 102. It also includes a guide 3, which has an expandable fixing seat 301 and a second oil inlet chamber 302. The second oil inlet chamber 302 is connected to the fixing seat 301. A connecting bolt 4 passes through the washing cone 1 and the guide 3. The connecting bolt 4 has a connecting cavity 401, which connects the first oil inlet chamber 101 and the second oil inlet chamber 302.

[0029] In this embodiment, the integrated guide vane pressure transmission structure and coiled tubing window opening device are mainly used in the oil extraction field, especially in operations that require changing the direction of oil well production. For example, when the oil resources of an oil well are nearing depletion and it is necessary to open a new oil well nearby to increase oil production, this device can be used for window opening operations.

[0030] In oil extraction operations, coiled tubing delivers hydraulic oil to a circulation joint, which then transfers the oil to the connecting tubing. The hydraulic oil enters the first inlet chamber through the inlet of the drilling cone, then passes through the outlet into the connecting bolt's connecting chamber. The oil in the connecting chamber continues to flow into the second inlet chamber of the guide vane, ultimately reaching the expandable mounting base. When drilling to the side is required, the screw drill bit rotates the drilling cone. Because the guide vane is fixed by the mounting base, the drilling cone rotates relative to the guide vane, achieving the window opening operation. During this process, thanks to the integrated pressure transmission structure, the connecting tubing remains connected, ensuring a continuous and stable oil supply.

[0031] It achieves continuous and stable oil supply, avoiding operational interruptions caused by disconnected oil pipes and improving mining efficiency. The integrated pressure transmission structure simplifies the complexity of the equipment and reduces the probability of malfunctions. It allows for more precise control of the guide vane's fixation and the cone's rotation, improving the accuracy and reliability of window opening operations. It reduces equipment maintenance costs and repair time, improving the overall economic efficiency of the mining operation.

[0032] Example 2

[0033] Compared to Embodiment 1, the connecting bolt 4 and the connecting oil pipe 2 are located on both sides of the washing cone 1. The first oil inlet chamber 101 is an annular cavity. The washing cone 1 also has an oil outlet 103. The oil inlet 102 and the oil outlet 103 are located on both sides of the washing cone 1. The oil inlet 102 and the oil outlet 103 are both connected to the first oil inlet chamber 101. The oil outlet 103 is used to connect the connecting cavity 401 and the first oil inlet chamber 101.

[0034] In this embodiment, the connecting bolts and connecting oil pipes are located on both sides of the washing cone. Hydraulic oil enters the annular first inlet chamber and flows out from the outlet on the other side of the washing cone, then transmits oil pressure through the connecting bolt's connecting chamber. This two-sided distribution design balances the force on the washing cone, making its operation more stable. The position and number of the inlet and outlet can be adjusted to optimize oil pressure distribution. A filter device is added to prevent impurities from entering the oil chamber and affecting the device's operation. This improves the balance of force on the washing cone, reducing wear and malfunctions caused by uneven force distribution. Optimized oil pressure distribution makes oil pressure transmission more stable, improving the reliability of the device.

[0035] Example 3

[0036] Compared to Embodiment 2, the second oil inlet chamber 302 further includes a second annular chamber 303 and an oil delivery chamber 304. The second annular chamber 303 is used to communicate with the connecting chamber 401 of the connecting bolt 4, and the oil delivery chamber 304 is used to communicate with the second annular chamber 303 and the fixing seat 301.

[0037] In this embodiment, oil from the connecting bolt cavity first enters the second annular cavity to buffer and evenly distribute oil pressure, and then is accurately delivered to the fixed seat through the oil delivery cavity, achieving stable expansion of the fixed seat. This achieves precise control over the expansion of the fixed seat, improving the stability and accuracy of the guide vane fixation. It also reduces the impact of oil pressure fluctuations on the expansion of the fixed seat, ensuring the safe operation of the window opening procedure.

[0038] Example 4

[0039] Compared to embodiment 3, the washing cone 1 further has a threaded groove 104, which communicates with the first oil inlet chamber 101. The connecting bolt 4 has a threaded portion 402, which communicates with the threaded groove 104. The threaded portion 402 is located between the inlet end and the outlet end of the connecting chamber 401.

[0040] In this embodiment, the threaded portion of the connecting bolt is tightly connected to the threaded groove of the washing cone, ensuring a seal between the connecting cavity and the first oil inlet cavity, enabling efficient and leak-free transmission of oil pressure. This enhances the sealing and efficiency of oil pressure transmission, reduces oil pressure loss, lowers the risk of leakage, and improves the safety and reliability of the device.

[0041] Example 5

[0042] Compared to Embodiment 4, a further integrated guide vane coiled tubing window opening device includes any of the integrated guide vane pressure transmission structures described above; it also includes a screw drill 6, the washing cone 1 is rotatably mounted on the screw drill 6, the washing cone 1 is located at the bottom of the screw drill 6, the circulation joint 7 is connected to the top of the screw drill 6, the circulation joint 7 is used to connect the coiled tubing 5, the coiled tubing 5 is used for oil supply, and the circulation joint 7 is used to connect the coiled tubing 5 and the connecting tubing 2.

[0043] In this embodiment, oil is supplied via coiled tubing and transmitted to the connecting tubing through a circulation joint. The screw drill bit drives the coning cone to rotate for window opening operations. Simultaneously, the integrated guide vane pressure transmission structure ensures stable oil pressure transmission, enabling continuous operation. The screw drill bit drive system is upgraded, increasing its speed and torque. The structure of the circulation joint is optimized to reduce oil flow resistance. This improves the efficiency and continuity of window opening operations, reduces operation time, and enhances the overall performance of the unit, meeting the needs of large-scale oil extraction.

[0044] Example 6

[0045] Compared to embodiment 5, the fixed base 301 is further located at the bottom of the guide 3, and the guide 3 also has a guide slope 305, which forms an angle with the vertical direction and is used for sliding at the bottom of the washing cone 1.

[0046] In this embodiment, when the washing cone rotates, its bottom slides along the guide slope of the guide ramp. The specific angle of the guide ramp guides the movement direction of the washing cone, achieving accurate window opening. This improves the guiding accuracy and stability of window opening, ensuring the accuracy of the window opening position. It also reduces wear between the washing cone and the guide ramp, lowering maintenance costs.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An integrated guide vane pressure transmission structure, characterized in that, The system includes a washing cone (1) and a connecting oil pipe (2) disposed on the washing cone (1). The connecting oil pipe (2) is used for oil supply. The washing cone (1) has a first oil inlet chamber (101) and an oil inlet (102). The connecting oil pipe (2) is connected to the first oil inlet chamber (101) through the oil inlet (102). It also includes... The guide (3) has an expandable base (301) and a second oil inlet chamber (302) that communicates with the base (301). A connecting bolt (4) passes through the washing cone (1) and the guide (3). The connecting bolt (4) has a connecting cavity (401) that connects the first oil inlet cavity (101) and the second oil inlet cavity (302).

2. The integrated guide vane pressure transmission structure according to claim 1, characterized in that, The connecting bolt (4) and the connecting oil pipe (2) are located on both sides of the washing cone (1). The first oil inlet chamber (101) is an annular cavity. The washing cone (1) also has an oil outlet (103). The oil inlet (102) and the oil outlet (103) are located on both sides of the washing cone (1). The oil inlet (102) and the oil outlet (103) are both connected to the first oil inlet chamber (101). The oil outlet (103) is used to connect the connecting cavity (401) and the first oil inlet chamber (101).

3. The integrated guide vane pressure transmission structure according to claim 1, characterized in that, The second oil inlet chamber (302) includes a second annular chamber (303) and an oil delivery chamber (304). The second annular chamber (303) is used to communicate with the connecting chamber (401) of the connecting bolt (4), and the oil delivery chamber (304) is used to communicate with the second annular chamber (303) and the fixed seat (301).

4. The integrated guide vane pressure transmission structure according to claim 1, characterized in that, The washing cone (1) has a threaded groove (104) that communicates with the first oil inlet chamber (101). The connecting bolt (4) has a threaded portion (402) that communicates with the threaded groove (104). The threaded portion (402) is located between the inlet end of the connecting chamber (401) and the outlet end of the connecting chamber (401).

5. An integrated guide tube continuous tubing window opening device, characterized in that, Including an integrated guide vane pressure transmission structure as described in any one of claims 1-4; also include, The screw drill bit (6) has a washing cone (1) rotatably mounted on it, and the washing cone (1) is located at the bottom of the screw drill bit (6). A circulation connector (7) is connected to the top of the screw drill (6). The circulation connector (7) is used to connect the coiled tubing (5). The coiled tubing (5) is used to supply oil. The circulation connector (7) is used to connect the coiled tubing (5) and the connecting tubing (2).

6. The integrated guide vane coiled tubing window opening device according to claim 5, characterized in that, The fixed seat (301) is located at the bottom of the guide (3), and the guide (3) also has a guide slope (305), which is at an angle to the vertical direction and is used for sliding at the bottom of the washing cone (1).

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