Telescopic well drilling salvage equipment

Abstract

The utility model discloses telescopic well drilling salvage equipment, which relates to the technical field of well drilling salvage equipment, and comprises an impacting and grabbing cone consisting of a support pile, a bottom connecting seat, a rotary connecting piece, a cone valve, a connecting rod and an annular hanging bracket, a pulley assembly and a grabbing and hoisting assembly, and the grabbing and hoisting assembly is connected with the pulley assembly to realize hoisting and opening and closing operation of the impacting and grabbing cone. The grabbing and hoisting assembly comprises a hoisting unit and an unlocking unit; the hoisting unit is used for achieving hoisting operation on the annular hanging bracket, and at the moment, the multiple conical petals are in an unfolded state. And the unlocking unit is used for releasing the hoisting operation of the hoisting unit on the annular hoisting frame, so that the hoisting unit directly performs hoisting operation on the pulley assembly, and at the moment, the plurality of conical petals are in a contraction state. According to the utility model, the automatic opening and closing of the conical petals can be realized through the arrangement of the grabbing and lifting assembly, and compared with the traditional manual hooking operation of a hook, the operation is more convenient and faster, and the working efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling and salvaging equipment, in particular to a telescopic drilling and salvaging equipment. Background Art

[0002] During the drilling operation, tools and various debris are likely to fall into the well. These tools and debris left inside the well not only cause waste but also damage subsequent operation equipment. Therefore, salvage equipment is needed to salvage them.

[0003] The grab cone is one of the commonly used fishing equipment in drilling operations. The grab cone is composed of supporting piles, hangers, cone petals, connecting rods, pulley blocks and hooks. Its working principle is as follows:

[0004] When the grab cone enters the borehole, the hook is directly hooked on the hanger. At this time, the hanger and the support pile are far away from each other, and the cone petals are in an open state. When the grab cone moves down to the bottom of the borehole, the hook connection to the hanger is released by the hook, and then the grab cone is pulled up, and the hanger and the support pile are brought closer to each other through the cooperation of the pulley block. At this time, the hanger pushes the multiple cone petals to contract through the connecting rod to clamp the object inside the borehole. Then the grab cone moves up as a whole to drive the object out of the borehole, thus realizing the salvage operation of the object inside the borehole;

[0005] In actual operation, after the grab cone brings the object out of the well, personnel are required to manually re-hook the hook with the hanger, which greatly affects the work efficiency of the salvage operation. A telescopic drilling salvage device is provided. Utility Model Content

[0006] The purpose of the utility model is to provide a telescopic drilling and fishing equipment in order to solve the above-mentioned problems.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a telescopic drilling and salvage equipment, comprising a grabbing cone composed of a supporting pile, a bottom connecting seat, a rotating connecting piece, a cone petal, a connecting rod, and an annular hanger, wherein the bottom connecting seat is fixed to the bottom of the supporting pile, the cone petal is fixed to the bottom end of the rotating connecting piece, one end of the cone petal is rotatably connected to the inner side of the bottom connecting seat, and the other end of the cone petal is rotatably connected to the connecting rod, the connecting rod is distributed on the outer side of the supporting pile and extends to the top of the supporting pile and is rotatably connected to the annular hanger, the bottom connecting seat, the rotating connecting piece, the cone petal, and the connecting rod are arranged in multiple groups and are evenly distributed on the outer side of the supporting pile and the annular hanger in a circumferential manner, a pulley assembly is arranged between the top of the supporting pile and the bottom of the annular hanger, a grabbing assembly is arranged at the inner middle part and the bottom of the annular hanger, and the grabbing assembly is connected to the pulley assembly to realize the lifting and opening and closing operations of the grabbing cone;

[0008] The grabbing and lifting assembly includes a lifting unit and an unlocking unit;

[0009] The hoisting unit is used to realize the hoisting operation of the annular hanger, and the multiple cone petals are in an unfolded state at this time;

[0010] The unlocking unit is used to release the hoisting operation of the hoisting unit on the annular hanger, so that the hoisting unit directly performs the hoisting operation on the pulley assembly, and at this time, the multiple cone petals are in a retracted state.

[0011] As a further solution of the utility model: the pulley assembly includes a fixed pulley, a movable pulley, an annular steel wire rope, and a linkage steel wire rope;

[0012] There are three fixed pulleys, which are sequentially installed on the top of the support piles; there are two movable pulleys, which are symmetrically installed on the bottom of the annular hanger;

[0013] The annular steel wire rope is sleeved on the two movable pulleys and the outer sides of the two fixed pulleys distributed on both sides. When the annular hanger is directly hoisted by the grabbing and hoisting assembly, the annular steel wire rope is used to realize the connection between the supporting pile and the annular hanger;

[0014] One end of the linkage wire rope is fixed to the bottom of the annular hanger, and the other end passes through the bottom of the middle fixed pulley and is connected to the grabbing and lifting assembly, so as to realize the lifting operation of the grabbing and lifting assembly on the supporting pile.

[0015] As a further solution of the utility model: the hoisting unit includes a hanging column, a storage slot, a movable hanging block, and a hanging ring;

[0016] The suspension column is vertically slidably connected to the inner side of the annular hanger and protrudes from the upper and lower ends of the annular hanger, and the other end of the linkage wire rope is fixedly connected to the bottom of the suspension column, and the suspension ring is fixed to the top of the suspension column;

[0017] The storage groove is opened on the outside of the hanging column, and the movable hanging block is rotatably connected to the inner bottom of the storage groove. When the storage groove is horizontal and fits the bottom of the annular hanger, the hanging ring is lifted by the external hook to realize direct lifting of the annular hanger.

[0018] As a further solution of the utility model: the unlocking unit includes a convex column and an unlocking ring block;

[0019] There are multiple convex columns, and the multiple convex columns are fixed to the bottom end of the annular hanger with the hanging column as the center circumference;

[0020] The unlocking ring block is slidably sleeved on the outside of the plurality of convex columns and slidably sleeved on the outer wall of the suspension column;

[0021] When the hanging column moves downward, the movable hanging block contacts the unlocking ring block and is rotated and stored in the storage groove. At this time, when the hanging column moves upward again, the unlocking ring block moves upward synchronously under the squeezing friction force of the movable hanging block, so that the movable hanging block can smoothly pass through the annular hanger, which is used to realize the direct lifting of the supporting pile by the hanging column.

[0022] As a further solution of the utility model: the storage grooves and movable hanging blocks are evenly arranged with the hanging column as the center, the height of the storage groove is smaller than the length of the movable hanging block, and the distance from the top of the unlocking ring block to the bottom of the annular hanger is greater than the length of the movable hanging block.

[0023] As a further solution of the utility model: the distance between the top of the unlocking ring block and the bottom of the annular hanger is smaller than the distance between the top of the hanging column and the bottom of the storage groove.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] By setting up the grabbing and hanging assembly, the cone flap can be opened and closed automatically. Compared with the traditional manual hooking operation, the operation is more convenient and the work efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model;

[0027] Figure 2 It is a schematic diagram of the connection between the linkage wire rope and the grabbing and hanging assembly of the utility model;

[0028] Figure 3 It is a structural cross-sectional view of the annular hanger and the grabbing hanger assembly of the utility model;

[0029] Figure 4 It is a structural cross-sectional view of the movable hanging block of the utility model stored in the storage groove.

[0030] In the figure: 1. impact grab cone; 101. support pile; 102. bottom connecting seat; 103. rotating connecting piece; 104. cone petal; 105. connecting rod; 106. annular hanger; 2. pulley assembly; 201. fixed pulley; 202. movable pulley; 203. annular wire rope; 204. linkage wire rope; 3. grab and lift assembly; 301. lifting column; 302. storage groove; 303. movable lifting block; 304. convex column; 305. unlocking ring block; 306. lifting ring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figures 1 to 4 In the embodiment of the utility model, a telescopic drilling and salvage equipment includes a grab cone 1 composed of a support pile 101, a bottom connecting seat 102, a rotating connecting member 103, a cone petal 104, a connecting rod 105, and an annular hanger 106. The bottom connecting seat 102 is fixed to the bottom of the support pile 101, the cone petal 104 is fixed to the bottom end of the rotating connecting member 103, one end of the cone petal 104 is rotatably connected to the inner side of the bottom connecting seat 102, and the other end of the cone petal 104 is rotatably connected to the connecting rod 105. The connecting rod 105 is distributed on the support pile 101. The outer side of the supporting pile 101 is extended to the top of the supporting pile 101 and is rotatably connected with the annular hanger 106. The bottom connecting seat 102, the rotating connecting piece 103, the cone petal 104, and the connecting rod 105 are provided with multiple groups and are evenly distributed in a circle on the outer side of the supporting pile 101 and the annular hanger 106. A pulley assembly 2 is provided between the top of the supporting pile 101 and the bottom of the annular hanger 106. A grabbing assembly 3 is provided at the inner middle part and the bottom of the annular hanger 106. The grabbing assembly 3 is connected with the pulley assembly 2 to realize the lifting and opening and closing operations of the impact grab cone 1.

[0033] The grabbing and lifting assembly 3 includes a lifting unit and an unlocking unit;

[0034] The hoisting unit is used to realize the hoisting operation of the annular hanger 106, and at this time, the multiple cone petals 104 are in an unfolded state;

[0035] The unlocking unit is used to release the hoisting operation of the hoisting unit on the annular hanger 106, so that the hoisting unit directly performs the hoisting operation on the pulley assembly 2, and at this time, the multiple cone petals 104 are in a retracted state;

[0036] The pulley assembly 2 includes a fixed pulley 201, a movable pulley 202, an annular steel wire rope 203, and a linkage steel wire rope 204;

[0037] There are three fixed pulleys 201, which are sequentially installed on the top of the support pile 101; there are two movable pulleys 202, which are symmetrically installed on the bottom of the annular hanger 106;

[0038] The annular steel wire rope 203 is sleeved on the two movable pulleys 202 and the outer sides of the two fixed pulleys 201 distributed on both sides. When the annular hanger 106 is directly hoisted by the grabbing and hoisting assembly 3, the annular steel wire rope 203 is used to realize the connection between the supporting pile 101 and the annular hanger 106;

[0039] One end of the linkage wire rope 204 is fixed to the bottom of the annular hanger 106, and the other end passes through the bottom of the middle fixed pulley 201 and is connected to the grabbing and lifting assembly 3, so as to realize the lifting operation of the grabbing and lifting assembly 3 on the supporting pile 101;

[0040] The hanging unit includes a hanging column 301, a storage slot 302, a movable hanging block 303, and a hanging ring 306;

[0041] The hanging column 301 is vertically slidably connected to the inner side of the annular hanger 106 and protrudes from the upper and lower ends of the annular hanger 106, and the other end of the linkage wire rope 204 is fixedly connected to the bottom of the hanging column 301, and the hanging ring 306 is fixed to the top of the hanging column 301;

[0042] The storage slot 302 is provided on the outside of the hanging column 301, and the movable hanging block 303 is rotatably connected to the inner bottom of the storage slot 302. When the storage slot 302 is horizontal and fits the bottom of the annular hanger 106, the hanging ring 306 is lifted by the external hanging hook to realize the direct hanging of the annular hanger 106.

[0043] The unlocking unit includes a convex column 304 and an unlocking ring block 305;

[0044] There are multiple convex columns 304, and the multiple convex columns 304 are fixed to the bottom end of the annular hanger 106 with the hanging column 301 as the center circumference;

[0045] The unlocking ring block 305 is slidably sleeved on the outer sides of the plurality of convex columns 304 and slidably sleeved on the outer wall of the hanging column 301;

[0046] When the hanging column 301 moves downward, the movable hanging block 303 contacts the unlocking ring block 305 and is rotated and stored in the storage groove 302. At this time, when the hanging column 301 moves upward again, the unlocking ring block 305 moves upward synchronously under the squeezing friction force of the movable hanging block 303, so that the movable hanging block 303 can smoothly pass through the annular hanger 106, so as to realize the direct lifting of the supporting pile 101 by the hanging column 301.

[0047] In this embodiment, when the grab cone 1 is in use, the external lifting equipment rope is connected to the lifting ring 306, and the movements of the various components of the grab cone 1 when in use are as follows:

[0048] When the lifting column 301 is in the initial state, the movable lifting block 303 is located at the bottom of the annular hanger 106, and the movable lifting block 303 is in a horizontal state and fits the bottom of the annular hanger 106. The lifting rope of the external lifting equipment is wound to lift the grab cone 1 to make it off the ground. At this time, the lifting column 301 directly lifts the annular hanger 106 through the movable lifting block 303, and its annular hanger 106 moves upward relative to the support column 101, and its annular wire rope 203 is slowly tightened. At the same time, the annular hanger 106 pulls the connecting rod 105 upward, and the connecting rod 105 pulls the rotating connecting member 103, so that the rotating connecting member 103 rotates around the rotating connecting seat 102, and the multiple cone petals 104 rotate and open each other. When the annular wire rope 203 is fully tightened, the support column 101 will move up synchronously with the annular hanger 106, and the grab cone 1 is lifted as a whole.

[0049] After that, the grab cone 1 is transferred to the top of the well and slowly lowered, so that the grab cone 1 moves down to the bottom of the well. When the bottom of the cone petal 104 contacts the bottom of the well, the external lifting equipment continues to loosen the lifting rope. At this time, the suspension column 301 moves downward under its own gravity, and the movable lifting block 303 contacts the unlocking ring block 305 and rotates and is stored in the storage groove 302 under the pressure of the unlocking ring block 305. After that, the external lifting equipment reels in the lifting rope, so that the suspension column 301 moves up. At this time, the unlocking ring block 305 moves up synchronously under the friction force of the movable lifting block 303. In this way, the movable lifting block 303 will not collide with the annular hanger 106 when it contacts the annular hanger 106. The suspension column 301 can drive the movable lifting block 303 to pass through the annular hanger 106, and the unlocking ring block 305 loses the friction force from the movable lifting block 303 and moves down and resets under the action of its own gravity.

[0050] After that, the suspension column 301 continues to move upward to tighten the linkage wire rope 204, and the linkage wire rope 204 can pull the support column 101 through the fixed pulley 201. At the same time, the linkage wire rope 204 exerts a downward pulling force on the annular hanger 106, so that the annular hanger 106 is close to the support column 101, and the connecting rod 105 moves downward to push the cone petal 104 to rotate inward and close, so as to grasp the object inside the drilling well, and then the object will be synchronously moved out of the drilling well along with the grab cone 1;

[0051] Then, the punching and grabbing cone 1 is transferred to an open space and slowly lowered. As the hanging column 301 moves downward and drives the movable hanging block 302 to move downward to the bottom of the annular hanger 106 again, the movable hanging block 302 will flip to a horizontal state under the action of its own gravity, and then the hanging column 301 is lifted to make the movable hanging block 302 move upward and fit the bottom of the annular hanger 106, so as to realize the opening of the cone petal 104;

[0052] The automatic opening and closing of the cone flap 104 can be achieved through the cooperation of the above multiple parts. Compared with the traditional manual hooking operation, the operation is more convenient and the work efficiency is higher.

[0053] Please refer to Figures 1 to 4 There are multiple storage grooves 302 and movable hanging blocks 303 evenly arranged with the hanging column 301 as the center, the height of the storage groove 302 is less than the length of the movable hanging block 303, and the distance from the top of the unlocking ring block 305 to the bottom of the annular hanger 106 is greater than the length of the movable hanging block 303.

[0054] In this embodiment: the structure of multiple movable hanging blocks 303 makes the hoisting force on the annular hanger 106 more uniform;

[0055] The height of the storage groove 302 is smaller than the length of the movable hanging block 303, so that the movable hanging block 303 is in an inclined state when stored in the storage groove 302, so that the movable hanging block 303 has a tendency to rotate downward, which not only provides sufficient friction between the movable hanging block 303 and the unlocking ring block 305, but also enables the movable hanging block 303 to automatically rotate to a horizontal state when not subjected to external extrusion force;

[0056] The mechanism is used to unlock the distance between the top of the ring block 305 and the bottom of the annular hanger 106 to be greater than the length of the movable hanger 303, so as to provide sufficient space for the movable hanger 303 to automatically rotate to a horizontal state.

[0057] Please refer to Figures 1 to 3 The distance between the top of the unlocking ring block 305 and the bottom of the annular hanger 106 is smaller than the distance between the top of the hanging column 301 and the bottom of the receiving groove 302.

[0058] In this embodiment: when the movable hanging block 303 contacts the unlocking ring block 305 and is completely retracted into the storage groove 302 through this structure, the top of the hanging column 301 is still located above the annular hanger 106, so as to ensure that the hanging column 301 is not separated from the annular hanger 106;

[0059] It should also be noted that when the linkage wire rope 204 is fully tightened, the bottom of the suspension column 301 is located below the annular hanger 106 .

[0060] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A telescopic drilling and salvage device, comprising a grab cone (1) composed of a support pile (101), a bottom connection seat (102), a rotating connection member (103), a cone petal (104), a connecting rod (105), and an annular hanger (106), wherein the bottom connection seat (102) is fixed to the bottom of the support pile (101), the cone petal (104) is fixed to the bottom end of the rotating connection member (103), and one end of the cone petal (104) is rotatably connected to the bottom connection seat (102). The other end of the cone petal (104) is rotatably connected to the connecting rod (105), and the connecting rod (105) is distributed on the outside of the supporting pile (101) and extends to the top of the supporting pile (101) and is rotatably connected to the annular hanger (106). The bottom connecting seat (102), the rotating connecting member (103), the cone petal (104), and the connecting rod (105) are provided in multiple groups and are evenly distributed in a circumference on the outside of the supporting pile (101) and the annular hanger (106), characterized in that: A pulley assembly (2) is provided between the top of the support pile (101) and the bottom of the annular hanger (106); a grabbing assembly (3) is provided at the inner middle part and the bottom of the annular hanger (106); the grabbing assembly (3) is connected to the pulley assembly (2) to realize the lifting and opening and closing operations of the impact grabbing cone (1); The grabbing and lifting assembly (3) comprises a lifting unit and an unlocking unit; The hoisting unit is used to implement a hoisting operation on the annular hanger (106), and at this time, the plurality of cone petals (104) are in an unfolded state; The unlocking unit is used to release the hoisting operation of the hoisting unit on the annular hanger (106), so that the hoisting unit directly performs the hoisting operation on the pulley assembly (2), and at this time, the multiple cone petals (104) are in a retracted state.

2. The telescopic drilling and salvage equipment according to claim 1, characterized in that: The pulley assembly (2) comprises a fixed pulley (201), a movable pulley (202), an annular steel wire rope (203), and a linkage steel wire rope (204); There are three fixed pulleys (201), which are sequentially installed on the top of the support pile (101); there are two movable pulleys (202), which are symmetrically installed on the bottom of the annular hanger (106); The annular steel wire rope (203) is sleeved on the outer sides of the two movable pulleys (202) and the two fixed pulleys (201) distributed on both sides. When the annular hanger (106) is directly hoisted by the grabbing and hoisting assembly (3), the annular steel wire rope (203) is used to realize the connection between the supporting pile (101) and the annular hanger (106); One end of the linkage wire rope (204) is fixed to the bottom of the annular hanger (106), and the other end passes through the bottom of the middle fixed pulley (201) and is connected to the grabbing and lifting assembly (3), so as to realize the lifting operation of the grabbing and lifting assembly (3) on the supporting pile (101).

3. The telescopic drilling and salvage equipment according to claim 2, characterized in that: The hanging unit comprises a hanging column (301), a storage slot (302), a movable hanging block (303), and a hanging ring (306); The suspension column (301) is vertically slidably connected to the inner side of the annular hanger (106) and protrudes from the upper and lower ends of the annular hanger (106), and the other end of the linkage wire rope (204) is fixedly connected to the bottom of the suspension column (301), and the suspension ring (306) is fixed to the top of the suspension column (301); The storage groove (302) is opened on the outside of the hanging column (301), and the movable hanging block (303) is rotatably connected to the inner bottom of the storage groove (302). When the storage groove (302) is horizontal and fits the bottom of the annular hanger (106), the hanging ring (306) is lifted by the external hanging hook to realize direct hanging of the annular hanger (106).

4. The telescopic drilling and salvage equipment according to claim 3, characterized in that: The unlocking unit comprises a convex column (304) and an unlocking ring block (305); A plurality of convex columns (304) are provided, and the plurality of convex columns (304) are fixed to the bottom end of the annular hanger (106) with the hanging column (301) as the center circumference; The unlocking ring block (305) is slidably sleeved on the outside of the plurality of convex columns (304) and is slidably sleeved on the outer wall of the hanging column (301); When the hanging column (301) moves downward, the movable hanging block (303) contacts the unlocking ring block (305) and is rotated and stored in the storage groove (302). At this time, when the hanging column (301) moves upward again, the unlocking ring block (305) moves upward synchronously under the squeezing friction force of the movable hanging block (303), so that the movable hanging block (303) can smoothly pass through the annular hanger (106), so as to realize the direct hanging of the hanging column (301) on the supporting pile (101).

5. The telescopic drilling and salvage equipment according to claim 4, characterized in that: The storage grooves (302) and movable hanging blocks (303) are evenly arranged with the hanging column (301) as the center, the height of the storage grooves (302) is smaller than the length of the movable hanging block (303), and the distance between the top of the unlocking ring block (305) and the bottom of the annular hanger (106) is greater than the length of the movable hanging block (303).

6. The telescopic drilling and salvage equipment according to claim 4, characterized in that: The distance between the top of the unlocking ring block (305) and the bottom of the annular hanger (106) is smaller than the distance between the top of the hanging column (301) and the bottom of the receiving groove (302).

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