阅读说明：本技术 一种修井打捞增力辅助装置 (Well workover salvage reinforcement auxiliary device ) 是由 史文奇 徐传斌 李汝强 耿辉 李洪波 孙海龙 商延兵 于 2019-10-19 设计创作，主要内容包括：本发明公开了一种修井打捞增力辅助装置,包括吊装件,当使用者要用到该修井打捞增力辅助装置的时候,吊车与吊装吊装件上的吊装孔连接,将活塞杆下端于井内管柱连接,上进油接头和下进油接头分别与外界的进油管连接,进油管连接液压泵,下缸盖上的螺栓连接孔与封井器上法兰螺栓连接,将该修井打捞增力辅助装置固定在井口,高压油通过下接头内部的下进油口进入缸体下端内部的下油腔,高压油推动活塞上行,活塞带动活塞杆上行,待到复位的时候,高压油通过上接头内部的上进油口进入缸体上端内部的上油腔,推动活塞和活塞杆下行,实现复位,通过设置连接件一、连接件二、连接件三、连接件四和连接件五,保证了整个装置的密闭性。(The invention discloses a workover salvage boosting auxiliary device which comprises a hoisting piece, wherein when a user needs to use the workover salvage boosting auxiliary device, a crane is connected with a hoisting hole in the hoisting piece, the lower end of a piston rod is connected with a pipe column in a well, an upper oil inlet joint and a lower oil inlet joint are respectively connected with an external oil inlet pipe, the oil inlet pipe is connected with a hydraulic pump, a bolt connecting hole in a lower cylinder cover is connected with an upper flange bolt of a well sealer, the workover salvage boosting auxiliary device is fixed at a well head, high-pressure oil enters a lower oil cavity in the lower end of a cylinder body through a lower oil inlet in a lower joint, the high-pressure oil pushes a piston to move upwards, the piston drives the piston rod to move upwards, and when the piston is reset, the high-pressure oil enters an upper oil cavity in the upper end of the cylinder body through an upper oil inlet in an upper, And the second connecting piece, the third connecting piece, the fourth connecting piece and the fifth connecting piece ensure the tightness of the whole device.)

1. The well repairing fishing reinforcement auxiliary device comprises a hoisting piece (1) and is characterized in that a hoisting hole (13) is formed in the upper end of the hoisting piece (1), an external thread I (14) is formed in the lower end of the hoisting piece (1), the lower end of the hoisting piece (1) is connected with an upper cylinder cover (2), a plurality of mounting holes (15) are formed in the upper cylinder cover (2), an external thread II (16) is formed in the lower end of the upper cylinder cover (2), the cylinder body (4) is sleeved on the outer side of the upper cylinder cover (2), an upper joint (18) and a lower joint (20) are arranged on the cylinder body (4), an upper oil inlet (17) and a lower oil inlet (21) are respectively formed in the upper joint (18) and the lower joint (20), a piston (9) is further arranged in the cylinder body (4), the outer side of the piston (9) is sleeved on the cylinder body (4), a lower cylinder cover (12) is arranged below the piston (9), the upper end of lower cylinder cap (12) is provided with three (23) of external screw thread, still be provided with on lower cylinder cap (12) a plurality of and external blowout preventer upper flange bolt complex bolted connection hole (24), the last plane of piston (9) has formed upper oil pocket (19) with the upper portion of cylinder body (4), the lower plane of piston (9) has formed lower oil pocket (22) with the lower part of cylinder body (4), the quantity of mounting hole (15) is two and symmetric distribution in upper cylinder cap (2) both sides, top connection (18) and lower clutch (20) all are connected with cylinder body (4) through threaded connection, bolted connection hole (24) equipartition is on lower cylinder cap (12).

2. A workover, salvage, power assist as set forth in claim 1 wherein the number of bolt connection holes (24) is twelve.

3. The well repairing, fishing and boosting auxiliary device according to claim 1, wherein the piston (9) is sleeved outside the piston rod (25), a plurality of fixing pins (6) are arranged on the piston rod (25), fastening caps (5) corresponding to the fixing pins (6) in a one-to-one manner are arranged outside the fixing pins (6), and pipe threads (26) matched with the threads of a pipe column in a well are arranged at the lower end of the piston rod (25).

4. The well repairing, fishing and boosting auxiliary device according to claim 3, wherein the fixing pins (6) are symmetrically arranged on two sides of the piston rod (25), and the piston rod (25) is clamped above the piston (9) through the matching of the fixing pins (6) and the fastening cap (5).

5. A workover salvage power assist device according to claim 4, wherein the number of said fixing pins (6) is two.

6. The well repairing, fishing and boosting auxiliary device according to claim 1, wherein a first connecting piece (3) is arranged at the joint of the upper cylinder cover (2) and the cylinder body (4), a second connecting piece (7) is arranged at the joint of the piston (9) and the cylinder body (4), a third connecting piece (8) is arranged at the joint of the piston (9) and the piston rod (25), a fourth connecting piece (10) is arranged at the joint of the lower cylinder cover (12) and the cylinder body (4), and a fifth connecting piece (11) is arranged at the joint of the lower cylinder cover (12) and the piston rod (25).

7. A workover, salvage and boosting auxiliary device according to claim 6, wherein the first connecting piece (3), the second connecting piece (7), the third connecting piece (8), the fourth connecting piece (10) and the fifth connecting piece (11) are all rubber rings.

Technical Field

The invention relates to oil field mechanical equipment, in particular to a well repairing salvaging boosting auxiliary device.

Background

petroleum is an essential energy source in life, and the use demand of people for petroleum is increasing day by day, so that the petroleum exploitation industry is increasing, and at present, in the construction of drilling and workover operations, due to the properties of drilling fluid, geological conditions, long-term high-strength exploitation and other reasons, the cementing strength of rocks is reduced or damaged, and the formation is sanded or collapsed, so that the phenomenon of underground drill sticking is caused.

At present, when an underground drilling tool is stuck in an oil field, the lifting capacity is insufficient, particularly when a drill rod is used for salvaging and releasing the stuck drill rod, the lifting capacity of minor repair equipment is more seriously insufficient, at the moment, only major repair equipment is considered to be replaced, on one hand, major repair teams need to be waited, on the other hand, manpower, material resources and cost are wasted, and therefore the well repairing salvaging boosting auxiliary device is urgently needed.

Disclosure of Invention

The invention aims to provide a well repairing fishing boosting auxiliary device to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

A well repairing, fishing and boosting auxiliary device comprises a hoisting piece, wherein a hoisting hole is formed in the upper end of the hoisting piece, an external thread I is arranged at the lower end of the hoisting piece, the lower end of the hoisting piece is connected with an upper cylinder cover, a plurality of mounting holes are formed in the upper cylinder cover, an external thread II is arranged at the lower end of the upper cylinder cover, a cylinder body is sleeved on the outer side of the upper cylinder cover, an upper joint and a lower joint are arranged on the cylinder body, an upper oil inlet and a lower oil inlet are respectively arranged in the upper joint and the lower joint, a piston is further arranged in the cylinder body, the cylinder body is sleeved on the outer side of the piston, a lower cylinder cover is arranged below the piston, an external thread III is arranged at the upper end of the lower cylinder cover, a plurality of bolt connecting holes matched with an external well sealer upper flange bolt are further arranged on the lower cylinder cover, an upper oil cavity is formed by the upper plane of the piston and the, the quantity of mounting hole is two and symmetric distribution in upper cylinder cap both sides, upper joint and lower clutch all are connected with the cylinder body through threaded connection, bolted connection hole equipartition is on lower cylinder cap.

As a further scheme of the invention: the number of the bolt connecting holes is twelve.

As a still further scheme of the invention: the piston sleeve is arranged on the outer side of the piston rod, a plurality of fixing pins are arranged on the piston rod, a plurality of fastening caps which correspond to the fixing pins one to one are arranged outside the fixing pins, and pipe threads matched with pipe columns in the well in a threaded mode are arranged at the lower end of the piston rod.

As a still further scheme of the invention: the fixing pins are symmetrically arranged on two sides of the piston rod, and the piston rod is clamped above the piston through the matching of the fixing pins and the fastening cap.

As a still further scheme of the invention: the number of the fixing pins is two.

As a still further scheme of the invention: the connecting part of the upper cylinder cover and the cylinder body is provided with a first connecting piece, the connecting part of the piston and the cylinder body is provided with a second connecting piece, the connecting part of the piston and the piston rod is provided with a third connecting piece, the connecting part of the lower cylinder cover and the cylinder body is provided with a fourth connecting piece, and the connecting part of the lower cylinder cover and the piston rod is provided with a fifth connecting piece.

As a still further scheme of the invention: the first connecting piece, the second connecting piece, the third connecting piece, the fourth connecting piece and the fifth connecting piece are all rubber rings.

Compared with the prior art, the invention has the beneficial effects that: the fishing reinforcement auxiliary device comprises a hoisting part, when a user needs to use the fishing reinforcement auxiliary device for workover, a crane is connected with a hoisting hole in the hoisting part, the lower end of a piston rod is connected with a tubular column in a well, an upper oil inlet joint and a lower oil inlet joint are respectively connected with an external oil inlet pipe, the oil inlet pipe is connected with a hydraulic pump, a bolt connecting hole in a lower cylinder cover is connected with an upper flange bolt of a blowout preventer, the fishing reinforcement auxiliary device for workover is fixed at the well head, high-pressure oil enters a lower oil cavity in the lower end of a cylinder body through a lower oil inlet in the lower joint, the high-pressure oil pushes a piston to move upwards, the piston drives the piston rod to move upwards, the piston rod. Treat when will reseing, high-pressure oil gets into the inside chamber that oils in cylinder body upper end through the inside last hydraulic fluid port of top connection, promotes piston and piston rod and descends, realizes reseing, through setting up connecting piece one, connecting piece two, connecting piece three, connecting piece four and connecting piece five for the not firm phenomenon of connecting can not appear in the connection part of each part, has guaranteed the seal of whole device.

Drawings

FIG. 1 is a schematic structural diagram of a well-repairing fishing force-increasing auxiliary device.

FIG. 2 is an enlarged view of the well workover salvage booster assist device at A.

In the figure: 1-hoisting piece, 2-upper cylinder cover, 3-connecting piece I, 4-cylinder body, 5-fastening cap, 6-fixing pin, 7-connecting piece II, 8-connecting piece III, 9-piston, 10-connecting piece IV, 11-connecting piece V, 12-lower cylinder cover, 13-hoisting hole, 14-external thread I, 15-mounting hole, 16-external thread II, 17-upper oil inlet, 18-upper connector, 19-upper oil cavity, 20-lower connector, 21-lower oil inlet, 22-lower oil cavity, 23-external thread III, 24-bolt connecting hole, 25-piston rod and 26-pipe thread.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to specific embodiments.