Wear-resistant nonmetal hydraulic anchor for oil well operation

Abstract

The utility model relates to the related technical field of oil well operation, in particular to a wear-resistant nonmetal hydraulic anchor for oil well operation, which comprises a hydraulic anchor, and a protection mechanism is arranged on the outer side surface of the hydraulic anchor. According to the wear-resistant non-metal hydraulic anchor for oil well operation, through the arrangement of a fixing clamping bolt, a nested shell, a clamping groove, a limiting clamping bolt, a push block, a first spring, aluminum oxide metal and an anti-skid pad, when the nested shell needs to be installed on the outer side surface of the hydraulic anchor, the fixing clamping bolt is inserted into the clamping groove firstly; then the hydraulic anchor is directly rotated to enable the fixing clamping bolt to press the limiting clamping bolt, the limiting clamping bolt compresses the first spring to be clamped into the clamping groove, and after the fixing clamping bolt presses the limiting clamping bolt, the first spring rebounds to enable the limiting clamping bolt to pop out to clamp the fixing clamping bolt, so that mounting of the nested shell is achieved, and the inner side surface of the nested shell is filled with aluminum oxide metal; and finally, the non-slip mat is fixedly connected to the surface of one side of the anchor fluke, so that the friction force between the anchor fluke and the well wall can be increased.

Description

Technical Field

[0001] The utility model relates to the technical field related to oil well operations, in particular to a wear-resistant non-metallic hydraulic anchor for oil well operations. Background Art

[0002] Downhole operation is a technical means to ensure the normal production of oil wells during the exploration and development of oil fields. The oil and natural gas buried thousands of meters underground are precious underground resources and are important resources that are indispensable to the modernization of the country, the material and cultural life of the people, and the development of human civilization. In the long-term production process, oil and water wells are constantly corroded by underground oil, gas, and water, gradually aging, and experiencing various types of failures, resulting in the inability to produce normally or even stopping production. Therefore, it is necessary to carry out downhole operations on oil and water wells with problems and failures. , so that oil and water wells can resume normal production. When operating oil wells, a choke is generally required, and a hydraulic anchor is often used in the choke to stabilize the pipeline. The hydraulic anchor has anchor claws evenly distributed on the circumferential surface of the body in its original state due to the action of internal elastic parts. It is used for anchoring downhole operation pipes such as hydraulic fracturing of oil wells, water well injection modification, hydraulic sandblasting, and cutting to avoid axial displacement of downhole tools. At present, most non-metallic hydraulic anchors are insufficient in wear resistance and durability. Therefore, there is a special need for a wear-resistant non-metallic hydraulic anchor for oil well operations.

[0003] Because the wear resistance and durability of existing non-metallic hydraulic anchors often cannot meet the needs of long-term, high-intensity oil well operations during use, especially in complex and changeable downhole environments, hydraulic anchors are easily corroded and worn, causing the anchor claws to lose their original anchoring function, affecting the stability and safety of downhole operations and the normal progress of oil well operations. Utility Model Content

[0004] The purpose of the present utility model is to provide a wear-resistant non-metallic hydraulic anchor for oil well operations, so as to solve the problem raised in the above background technology that the wear resistance and durability of existing non-metallic hydraulic anchors often cannot meet the requirements of long-term, high-intensity oil well operations during use, especially in complex and changeable downhole environments. The hydraulic anchor is easily corroded and worn, causing the anchor claws to lose their original anchoring function, affecting the stability and safety of downhole operations, and affecting the normal progress of oil well operations.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a wear-resistant non-metallic hydraulic anchor for oil well operations, comprising a hydraulic anchor, a protective mechanism being provided on the outer surface of the hydraulic anchor, a baffle being threadedly connected to one side surface of the hydraulic anchor, a push-out opening being provided on one side surface of the hydraulic anchor, an anchor claw being provided on the inner surface of the hydraulic anchor, a first sealing ring being engaged with the outer surface of the anchor claw, a clamping plate being fixedly connected to one side surface of the hydraulic anchor, a second sealing ring being engaged with the outer surface of the clamping plate, and a second spring being fixedly connected to one side surface of the clamping plate;

[0006] The protective mechanism includes a fixed bolt, a nested shell, a slot, a limit bolt, a push block, a first spring, an aluminum oxide metal and an anti-slip pad. One side surface of the hydraulic anchor is fixedly connected to the fixed bolt, the outer surface of the hydraulic anchor is installed with a nested shell, the outer surface of the nested shell is provided with a slot, one side surface of the slot is provided with a limit bolt, one side surface of the limit bolt is fixedly connected to the push block, one end surface of the limit bolt is fixedly connected to the first spring, the inner surface of the nested shell is filled with aluminum oxide metal, and one side surface of the anchor claw is fixedly connected to the anti-slip pad.

[0007] Preferably, the outer wall size of the fixing bolt matches the inner wall size of the slot, and the slot is an L-shaped slot provided on one side surface of the nested shell.

[0008] Preferably, the limiting latch and the first spring form a telescopic structure, and the limiting latch is a trapezoidal latch.

[0009] Preferably, one end of the first spring is fixedly connected to a limit latch, and the other end of the first spring is fixedly connected to a nested shell.

[0010] Preferably, the first spring is arranged inside the nested shell, and the anti-slip pads are distributed at equal intervals on one side surface of the fluke.

[0011] Preferably, the second spring and the clamping plate form a telescopic structure, and the outer wall size of the baffle matches the inner wall size of the fluke.

[0012] Preferably, the flukes are distributed at equal intervals on the inner surface of the hydraulic anchor, and the push openings correspond to the positions of the flukes one by one.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the wear-resistant non-metallic hydraulic anchor for oil well operation is provided with a fixing bolt, a nested shell, a slot, a limiting bolt, a push block, a first spring, an aluminum oxide metal and an anti-slip pad. When the nested shell needs to be installed on the outer surface of the hydraulic anchor, the fixing bolt is first inserted into the slot, and then the hydraulic anchor is directly rotated to make the fixing bolt press the limiting bolt, and the limiting bolt compresses the first spring and snaps into the slot. When the fixing bolt presses over the limiting bolt, the first spring rebounds to make the limiting bolt pop out and snap the fixing bolt, thereby realizing the installation of the nested shell. The aluminum oxide metal is filled on the inner surface of the nested shell, which can It can effectively enhance wear resistance and improve service life. Finally, the anti-slip pad is fixedly connected to the side surface of the anchor claw, which can increase the friction between the anchor claw and the well wall, thereby improving the fixing effect. During use, the baffle can be installed on the side surface of the hydraulic anchor by threaded connection. The position of the baffle can be adjusted according to actual needs to control the size of the push port. The setting of the push port can facilitate the pushing operation, so that the anchor claw can smoothly enter the well wall. The outer surface of the anchor claw is snap-connected with a first sealing ring, which can effectively prevent well fluid leakage and ensure the safety of the operation. One side surface of the clamping plate is fixedly connected with a second sealing ring, which can further improve the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the protective mechanism structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the clamping plate and the second spring used in conjunction with each other in the present utility model;

[0017] Figure 4 For this utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0018] In the figure: 1. Hydraulic anchor; 2. Protective mechanism; 201. Fixing bolt; 202. Nesting shell; 203. Slot; 204. Limiting bolt; 205. Push block; 206. First spring; 207. Aluminum oxide metal; 208. Anti-slip pad; 3. Baffle; 4. Push port; 5. Anchor claw; 6. First sealing ring; 7. Clamp; 8. Second sealing ring; 9. Second spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-4 The utility model provides a technical solution: a wear-resistant non-metallic hydraulic anchor for oil well operations, comprising a hydraulic anchor 1, a protective mechanism 2 being provided on the outer surface of the hydraulic anchor 1, a baffle 3 being threadedly connected to one side surface of the hydraulic anchor 1, a push port 4 being provided on one side surface of the hydraulic anchor 1, an anchor claw 5 being provided on the inner surface of the hydraulic anchor 1, a first sealing ring 6 being snap-connected to the outer surface of the anchor claw 5, a clamping plate 7 being fixedly connected to one side surface of the hydraulic anchor 1, a second sealing ring 8 being snap-connected to the outer surface of the clamping plate 7, and a second spring 9 being fixedly connected to one side surface of the clamping plate 7;

[0021] The protective mechanism 2 includes a fixed bolt 201, a nested shell 202, a slot 203, a limit bolt 204, a push block 205, a first spring 206, an alumina metal 207 and an anti-slip pad 208. The fixed bolt 201 is fixedly connected to one side surface of the hydraulic anchor 1, and the nested shell 202 is installed on the outer surface of the hydraulic anchor 1. The slot 203 is provided on the outer surface of the nested shell 202. A limit bolt 204 is provided on one side surface of the slot 203. A push block 205 is fixedly connected to one side surface of the limit bolt 204. The limit bolt 201 is fixedly connected to one side surface of the limit bolt 204. One end surface of the hydraulic anchor 1 is fixedly connected to a first spring 206, the inner surface of the nested shell 202 is filled with alumina metal 207, and one side surface of the anchor claw 5 is fixedly connected to an anti-slip pad 208. Through the arrangement of the fixing bolt 201, the nested shell 202, the slot 203, the limit bolt 204, the push block 205, the first spring 206, the alumina metal 207 and the anti-slip pad 208, when the nested shell 202 needs to be installed on the outer surface of the hydraulic anchor 1, first insert the fixing bolt 201 into the slot 203, and then directly rotate the hydraulic anchor 1. The anchor 1 makes the fixing bolt 201 press the limiting bolt 204, and the limiting bolt 204 compresses the first spring 206 and snaps into the slot 203. When the fixing bolt 201 presses the limiting bolt 204, the first spring 206 rebounds and makes the limiting bolt 204 pop out and snap the fixing bolt 201, thereby realizing the installation of the nesting shell 202. Aluminum oxide metal 207 is filled on the inner surface of the nesting shell 202, which can effectively enhance the wear resistance and improve the service life. Finally, the anti-slip pad 208 is fixedly connected to the side surface of the anchor claw 5, which can increase the anchor claw 5 and the anchor claw 5. The friction of the well wall can improve the fixing effect. During use, the baffle 3 can be installed on one side surface of the hydraulic anchor 1 by means of a threaded connection. The position of the baffle 3 can be adjusted according to actual needs to control the size of the push port 4. The setting of the push port 4 can facilitate the pushing operation, so that the anchor claw 5 can smoothly enter the well wall. The outer surface of the anchor claw 5 is snap-connected with a first sealing ring 6, which can effectively prevent well fluid leakage and ensure the safety of the operation. One side surface of the clamping plate 7 is fixedly connected with a second sealing ring 8, which can further improve the sealing effect.

[0022] Furthermore, the outer wall size of the fixing bolt 201 matches the inner wall size of the slot 203. The slot 203 is an L-shaped slot arranged on one side surface of the nested shell 202. Through the setting of the nested shell 202, the hydraulic anchor 1 can be protected and its wear resistance can be increased during use.

[0023] Furthermore, the limiting bolt 204 and the first spring 206 form a telescopic structure. The limiting bolt 204 is a trapezoidal bolt. Through the setting of the limiting bolt 204, the shaking of the fixing bolt 201 is limited during use, so that the connection between the hydraulic anchor 1 and the nested shell 202 is firm.

[0024] Furthermore, one end of the first spring 206 is fixedly connected to the limiting bolt 204, and the other end of the first spring 206 is fixedly connected to the nested shell 202. Through the setting of the first spring 206, the limiting bolt 204 is controlled when the limiting bolt 204 limits the fixing bolt 201, which facilitates the installation and disassembly of the nested shell 202.

[0025] Furthermore, the first spring 206 is arranged inside the nested shell 202, and the anti-skid pads 208 are evenly spaced on one side surface of the fluke 5. The arrangement of the anti-skid pads 208 allows the fluke 5 to have greater friction for gripping and fixing after being extended.

[0026] Furthermore, the second spring 9 and the clamping plate 7 form a telescopic structure, and the outer wall size of the baffle 3 matches the inner wall size of the fluke 5. By setting the baffle 3, the fluke 5 can be limited and fixed.

[0027] Furthermore, the anchor claws 5 are evenly spaced on the inner surface of the hydraulic anchor 1, and the push openings 4 correspond to the positions of the anchor claws 5. Through the setting of the push openings 4, the anchor claws 5 can be smoothly extended from the hydraulic anchor 1 to fix and grab the wall when in use.

[0028] Working principle: When the nested shell 202 needs to be installed on the outer surface of the hydraulic anchor 1, first insert the fixing bolt 201 into the slot 203, and then directly rotate the hydraulic anchor 1 to make the fixing bolt 201 press the limiting bolt 204, and the limiting bolt 204 compresses the first spring 206 and snaps into the slot 203. When the fixing bolt 201 presses over the limiting bolt 204, the first spring 206 rebounds to make the limiting bolt 204 pop out and snap the fixing bolt 201, thereby realizing the installation of the nested shell 202. Aluminum oxide metal 207 is filled on the inner surface of the nested shell 202, which can effectively enhance wear resistance and improve service life. The rear anti-slip pad 208 is fixedly connected to one side surface of the anchor claw 5, which can increase the friction between the anchor claw 5 and the well wall, thereby improving the fixing effect. During use, the baffle 3 can be installed on one side surface of the hydraulic anchor 1 by means of a threaded connection. The position of the baffle 3 can be adjusted according to actual needs to control the size of the push port 4. The setting of the push port 4 can facilitate the pushing operation, so that the anchor claw 5 can smoothly enter the well wall. The outer surface of the anchor claw 5 is snap-connected with a first sealing ring 6, which can effectively prevent well fluid leakage and ensure the safety of the operation. One side surface of the clamping plate 7 is fixedly connected with a second sealing ring 8, which can further improve the sealing effect.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant non-metallic hydraulic anchor for oil well operation, comprising a hydraulic anchor (1), characterized in that: The outer surface of the hydraulic anchor (1) is provided with a protective mechanism (2), one side surface of the hydraulic anchor (1) is threadedly connected with a baffle (3), one side surface of the hydraulic anchor (1) is provided with a push port (4), the inner surface of the hydraulic anchor (1) is provided with an anchor claw (5), the outer surface of the anchor claw (5) is snap-connected with a first sealing ring (6), one side surface of the hydraulic anchor (1) is fixedly connected with a clamping plate (7), the outer surface of the clamping plate (7) is snap-connected with a second sealing ring (8), and one side surface of the clamping plate (7) is fixedly connected with a second spring (9); The protection mechanism (2) comprises a fixed bolt (201), a nested shell (202), a slot (203), a limit bolt (204), a push block (205), a first spring (206), an alumina metal (207) and an anti-skid pad (208); a fixed bolt (201) is fixedly connected to one side surface of the hydraulic anchor (1); a nested shell (202) is installed on the outer side surface of the hydraulic anchor (1); a slot (203) is provided on the outer side surface of the nested shell (202); a limit bolt (204) is provided on one side surface of the slot (203); a push block (205) is fixedly connected to one side surface of the limit bolt (204); one end surface of the limit bolt (204) is fixedly connected to the first spring (206); the inner side surface of the nested shell (202) is filled with an alumina metal (207); and a non-skid pad (208) is fixedly connected to one side surface of the anchor claw (5).

2. A wear-resistant non-metallic hydraulic anchor for oil well operations according to claim 1, characterized in that: The outer wall size of the fixing latch (201) matches the inner wall size of the slot (203), and the slot (203) is an L-shaped slot arranged on a side surface of the nested shell (202).

3. The wear-resistant non-metallic hydraulic anchor for oil well operation according to claim 1, characterized in that: The limiting latch (204) and the first spring (206) form a telescopic structure, and the limiting latch (204) is a trapezoidal latch.

4. A wear-resistant non-metallic hydraulic anchor for oil well operations according to claim 1, characterized in that: One end of the first spring (206) is fixedly connected to the limit latch (204), and the other end of the first spring (206) is fixedly connected to the nested shell (202).

5. The wear-resistant non-metallic hydraulic anchor for oil well operation according to claim 1, characterized in that: The first spring (206) is arranged inside the nesting shell (202), and the anti-slip pads (208) are distributed at equal intervals on a side surface of the fluke (5).

6. The wear-resistant non-metallic hydraulic anchor for oil well operation according to claim 1, characterized in that: The second spring (9) and the clamping plate (7) form a telescopic structure, and the outer wall size of the baffle (3) matches the inner wall size of the fluke (5).

7. The wear-resistant non-metallic hydraulic anchor for oil well operation according to claim 1, characterized in that: The anchor claws (5) are distributed at equal intervals on the inner surface of the hydraulic anchor (1), and the positions of the push openings (4) and the anchor claws (5) correspond one to one.

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