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Environmental friendliness and energy conversation type tubing string drainage device of well mouth for work-over treatment

An environment-friendly, energy-saving, tubing string technology, applied in wellbore/well components, earthwork drilling, etc., can solve the problems of high operation cost and complicated operation, and achieve the effect of low operation cost, simple operation, and improved anti-pollution effect.

Active Publication Date: 2013-03-27
大庆市中航石油机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of high cost and complicated operation of the existing liquid storage tank draining operation

Method used

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  • Environmental friendliness and energy conversation type tubing string drainage device of well mouth for work-over treatment
  • Environmental friendliness and energy conversation type tubing string drainage device of well mouth for work-over treatment

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with accompanying drawing:

[0010] As shown in the figure, the wellhead environmental protection and energy-saving tubing string draining device for workover operation includes a main body 1 . The main body 1 is barrel-shaped, and there is an annular boss outside the upper end of the main body 1. The diameter of the annular boss is the same as that of the oil pipe coupling. There are long holes in the axial direction on the side wall, the lower end of the main body 1 has a bottom, and there is a via hole in the center of the bottom. A support ring 2 is built in the through hole at the bottom of the main body 1, and the lower support ring 2 is fixed on the bottom of the main body 1 by a nut. The two connecting ears on both sides of the support ring 2 are hinged with a tooth piece 3, and the upper end of the tooth piece 3 is hinged with an upper connecting rod 4. The upper end of the tooth piece 3 pass...

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Abstract

The invention provides an environmental friendliness and energy conversation type tubing string drainage device of a well mouth for work-over treatment. The problem that the conventional liquid storage tank has a high cost in drainage operation can be mainly solved. The environmental friendliness and energy conversation type tubing string drainage device is characterized in that a tooth block (3) is connected with connection lugs at both sides of a supporting ring (2) at the lower part of a main body (1); an upper connecting rod (4) is connected with the tooth block (3); the upper end of the upper connecting rod (4) passes through a strip-shaped hole of an unlocking lifting sheet (5), and then is connected with a locking spring; a pressure reed (6) is connected with the main body (1); a lifting hook (7) is arranged on the pressure reed (6); an unlocking handle (11) is connected with the unlocking lifting sheet (5); an unlocking bolt passes through the lifting hook (7), the pressure reed (6) and the supporting ring (2), and is then connected with a sealing plug (8); a sealing spring is sleeved on the unlocking bolt; a lift-up pressing rod (10) is connected with a positioning ring (9) on the main body (1); the left end of the lift-up pressing rod (10) is connected with the lifting hook (7); and the right end of the lift-up pressing rod (10) is connected with a rope chain. The environmental friendliness and energy conversation type tubing string drainage device of the well mouth for the work-over treatment provided by the invention has the characteristic of low operation cost.

Description

Technical field: [0001] The invention relates to an anti-environmental pollution device used in wellhead operations in the field of oil production in oil fields, in particular to a wellhead environment-friendly and energy-saving oil pipe string drain device for well workover operations. Background technique: [0002] With the development of oil fields, environmental protection is becoming more and more important. When lifting the tubing string in the wellhead operation, the well fluid in the tubing string leaks and pollutes the environment. In order to prevent pollution of the environment, excavators are currently used to dig out the liquid storage tank before operation, and anti-seepage cloth is arranged in the liquid storage tank. The well liquid in the liquid storage tank is full, and the well liquid in the liquid storage tank is transported away by pump trucks and tank trucks. This structure results in high operating costs and complicated operations, which affects opera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B41/00
Inventor 王俊德王迪臻李宁
Owner 大庆市中航石油机械制造有限公司
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