CN212774182U

CN212774182U - Special clip for replacing polish rod

Info

Publication number: CN212774182U
Application number: CN202021492879.3U
Authority: CN
Inventors: 胡茂军; 郑海峰; 熊跃武; 刘宝; 柳学征
Original assignee: Petrochina Co Ltd; Daqing Oilfield Co Ltd
Current assignee: Petrochina Co Ltd; Daqing Oilfield Co Ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-03-23
Anticipated expiration: 2030-07-24

Abstract

The utility model relates to a change special checkpost of polished rod. The problem of current change polished rod time-consuming and energy-consuming influence safety in production has mainly been solved. The method is characterized in that: one end of the fixed semicircle (1) is provided with a connecting hole and is connected with one end of the movable semicircle (4) through a connecting shaft; the other end of the movable semicircle (4) is fixedly connected with a movable hook rack (5) in the tangential direction; the movable hook rack (5) is connected with a movable hook (6) through a hook shaft (7); the other end of the fixed semicircle (1) is welded and fixedly connected with a U-shaped fixed hook (2) in the tangential direction, and one end of the top of the fixed hook is an inward hook; the top of the movable hook (6) is an outward hook, and the hook of the fixed hook is contacted, matched and occluded with the hook of the movable hook (6); the side surface of the lower end of the fixed hook is connected with an operating rod (8). This change special checkpost of polished rod can support the paraffin removal gate, avoids the paraffin removal gate rotatory, conveniently stimulates the polished rod and puts subaerial or aim at the well head, labour saving and time saving.

Description

Special clip for replacing polish rod

Technical Field

The utility model relates to an oil field oil production engineering technical field, in particular to change special checkpost of polished rod.

Background

When the paraffin removal gate is detached, the polish rod coupling must be lifted to expose, the anti-dropping clamp needs to be punched at the position about 100mm above the polish rod coupling to support the paraffin removal gate, two persons need to lift the high-resolution paraffin removal gate and one person needs to punch the anti-dropping clamp when the anti-dropping clamp is punched, and long-time labor intensity is high. The wax removal gate and the polish rod rotate synchronously when the polish rod is unloaded, collision damage can be caused to operators, and environment pollution is caused because crude oil on the polish rod touches clothes on hands when the polish rod is pulled.

Disclosure of Invention

The utility model aims to solve the technical problem that it wastes time and energy when overcoming the current change polished rod that exists among the background art and influence the problem of safety in production, and provide a change special checkpost of polished rod, should change the special checkpost of polished rod, can support the paraffin removal gate, can avoid the paraffin removal gate rotatory, conveniently stimulate the polished rod and put subaerial or aim at the well head, labour saving and time saving guarantees safety in production.

The utility model provides a its problem accessible reach as follows technical scheme: the special clip for replacing the polished rod comprises a fixed semicircle, wherein a connecting hole is formed in one end of the fixed semicircle and is connected with one end of a movable semicircle through a connecting shaft; the other end of the movable semicircle is fixedly connected with a movable hook frame in the tangential direction; the movable hook frame is connected with the movable hook through a hook shaft; the other end of the fixed semicircle is welded and fixedly connected with a U-shaped fixed hook in the tangential direction, one end of the top of the fixed hook is an inward hook, the top of the movable hook is an outward hook, and the hook of the fixed hook is contacted, matched and meshed with the hook of the movable hook; the side surface of the lower end of the fixed hook is connected with an operating rod.

Compared with the above background art, the utility model can have following beneficial effect: the special clip for replacing the polish rod has simple and unique structure and is very convenient to use and operate. When the special wax removal gate is installed on site, two persons operate the special wax removal gate, the first person and the second person respectively use one hand to lift the wax removal gate forcibly, the first hand holds the special clip operating rod to sleeve the fixed semicircle of the special clip on the upper side of the polish rod coupling, the second hand pushes the movable semicircle of the special clip, the movable semicircle is clamped with the fixed semicircle, and the installation operation is completed by one action. When the wax removal gate is disassembled on site, two persons lift the wax removal gate, the first person holds the special clip operating rod by hand, and the second person pinches the movable hook and the movable hook frame by hand and pulls the movable hook and the movable hook frame outwards, so that the disassembly is completed by one action.

Drawings

Fig. 1 is a schematic structural view of the closed state of the present invention;

fig. 2 is a schematic structural view of the open state of the present invention.

In the figure: 1. fixing the semicircle; 2. Fixing the hook; 3. a semi-circular shaft; 4. A movable semicircle; 5. A movable hook frame; 6. a movable hook; 7. a hook shaft; 8. an operating lever; 9. a torsion spring.

The specific implementation mode is as follows:

the invention will be further explained with reference to the drawings:

as shown in attached figures 1 and 2, the special clip for replacing the polish rod comprises a fixed semicircle 1, wherein a connecting hole is formed in one end of the fixed semicircle 1 and is connected with one end of a movable semicircle 4 through a connecting shaft; the other end of the movable semicircle 4 is fixedly connected with a movable hook frame 5 in a welding way in the tangential direction; the movable hook frame 5 is connected with a movable hook 6 through a hook shaft 7, a torsion spring 9 is arranged on the hook shaft 7, and the movable hook frame are always in an open state under the action of the torsion spring; the other end of the fixed semicircle 1 is welded and fixedly connected with a U-shaped fixed hook 2 in the tangential direction, one end of the top of the fixed hook 2 is an inward hook, the top of the movable hook 6 is an outward hook, the hook of the fixed hook 2 is contacted, matched and occluded with the hook of the movable hook 6, and the contact surface is a slope; the side surface of the lower end of the fixed hook 2 is connected with an operating rod 8; after the fixed semicircle 1 and the movable semicircle 4 are combined into a whole circle, a clearance of 2mm is formed between the inner diameter and the outer diameter of the polish rod.

The assembly and the use process of the special clip for replacing the polish rod are as follows:

1. the operator A and the operator B firstly take the polished rod off the beam hanger of the oil pumping unit to hang on the crane, then unload the paraffin removal gate, and then hang the polished rod by the crane. When the polish rod coupling meets the paraffin removal gate and the paraffin removal gate is hoisted together, the anti-dropping clamp is arranged on the lower side of the polish rod coupling. The crane slowly falls down to make the weight of the sucker rod below the polish rod to be located on the Christmas tree through the anti-falling clamp.

2. The wax removal gate is lifted by the left hand of two operators A and B to expose the polish rod coupling, the operating rod of the special clamp is held by the right hand of the operator A, and the fixed semicircle of the special clamp is sleeved on the upper side of the polish rod coupling. The second hand pushes the movable semicircle, when the hook of the movable semicircle is contacted with the hook of the fixed semicircle, the contact surface is a slope, the hook of the movable semicircle moves outwards to enable the torsion spring to be twisted and deformed, the hook of the movable semicircle passes through the contact surface, and the hook of the movable semicircle rebounds to the original position under the action of the torsion spring and is locked with the hook on the fixed semicircle. One action completes the installation of the special clip. The left hand of the two operators A and B is downwards put to make the paraffin removal gate fall on the special clip.

3. The two adjustable wrenches are respectively clamped on the anti-falling clamp and the polish rod coupling, the operating rod of the special clamp is continuously held by the right hand at the first time, the adjustable wrench is held by the left hand and is matched with the operation of the second time, and the polish rod coupling is rotated anticlockwise by the adjustable wrench clamped on the polish rod coupling at the second time, so that the polish rod is separated from the sucker rod in the well. Because the weight of the paraffin removal gate falls on the special clip, a gap of 2mm is formed between the inner diameter of the special clip and the outer diameter of the polished rod, the first hand is used for holding the operating rod of the special clip all the time, the special clip does not rotate, and the paraffin removal gate does not rotate. The polish rod and the paraffin removal gate are lifted by the crane, the first operating rod holding the special clamp is pulled backwards and moves away from the well mouth, and the crane lowers the polish rod until the polish rod and the paraffin removal gate are placed on the ground.

4. The first uses the right hand to continuously hold the operating rod of the special clip, and the left hand pinches the movable hook and the movable hook frame and pulls outwards to open the movable semicircle of the special clip and place the movable semicircle immovably. The first and the second people take the old polished rod out of the paraffin removal gate, then wear the new polished rod through the paraffin removal gate, the first person uses the left hand to push the movable semicircle of the special clamp towards the fixed semicircle, and the hook of the movable semicircle is locked with the hook of the fixed semicircle.

5. The crane slowly lifts the polish rod and the paraffin removal gate and aligns the polish rod and the paraffin removal gate to a wellhead, the first hand is used for holding an operating rod of the special clamp to match with the crane to align the polish rod to a sucker rod of the wellhead, and the second hand is used for clamping the wrench on a polish rod coupling to rotate clockwise until the polish rod coupling is screwed down.

6. The left hand is used by both the first and the second people to lift the paraffin removal gate, the right hand is used by the second people to pinch the movable hook and the movable hook frame and pull the movable hook frame outwards, the special clamp is taken down by the first hand in a clockwise manner, and the left hand of the two operators is lowered downwards to enable the paraffin removal gate to fall onto the Christmas tree. Then the wax removal gate is tightened clockwise, and then the polished rod is hung on the polished rod eye of the oil pumping unit.

Claims

1. The utility model provides a change special checkpost of polished rod, includes fixed semicircle (1), its characterized in that: one end of the fixed semicircle (1) is provided with a connecting hole and is connected with one end of the movable semicircle (4) through a connecting shaft; the other end of the movable semicircle (4) is fixedly connected with a movable hook rack (5) in the tangential direction; the movable hook rack (5) is connected with a movable hook (6) through a hook shaft (7); the other end of the fixed semicircle (1) is fixedly connected with a U-shaped fixed hook (2) in a welding mode in the tangential direction, and one end of the top of the fixed hook (2) is an inward hook; the top of the movable hook (6) is an outward hook, and the hook of the fixed hook (2) is contacted, matched and occluded with the hook of the movable hook (6); the side surface of the lower end of the fixed hook (2) is connected with an operating rod (8).

2. The special clip for replacing a polish rod according to claim 1, wherein: a torsion spring is arranged on the hook shaft (7).

3. The special clip for replacing a polish rod according to claim 1, wherein: after the fixed semicircle (1) and the movable semicircle (4) are combined into a whole circle, a gap of 2mm is formed between the inner diameter and the outer diameter of the polish rod.