Adjustable constant-flow multifunctional blanking plug

A multi-functional and pluggable technology, which is used in the production of fluids, wellbore/well components, and earth-moving drilling. The effect of long pressure time and long service life

Inactive Publication Date: 2010-08-18
董力维
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the test and adjustment efficiency of the adjustable faucet plug has been doubled, but due to the short time for deployment and oil reservoir pressure stabilization, the pass rate of water injection dropped from 95% to 60% one month after the test
However, due to the structure of the constant flow plug, there are problems such as the decrease of the spring elasticity, the increase of the water nozzle, and the jamming, which lead to short constant flow time and short service life, and the success rate of one-time fishing is about 85%, which affects the water injection efficiency.

Method used

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  • Adjustable constant-flow multifunctional blanking plug
  • Adjustable constant-flow multifunctional blanking plug
  • Adjustable constant-flow multifunctional blanking plug

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with accompanying drawing:

[0012] The appearance and structure of the adjustable constant-current multifunctional plug are the same as those of the existing plug, and the testing process and fishing method of the existing plug are retained, and the whole is mainly composed of a fishing part and a working part. As shown in the accompanying drawings, the adjustable constant-current multifunctional plug includes a fishing rod 1, a pressure cap, a compression spring, a cam, a main body 2, a rotating adjustment nut 3, a plunger 4, a balance spring 5, a fishing rod 1, a compression spring Same as the existing effect of the cam, the fishing rod 1 and the stage clip are inserted into the main body 2 from the upper end of the main body 2 and connected, and the cam is inserted into the main body 2 from the side of the main body 2 and connected. The salvage rod 1 is used for testing and fishing. The lower end o...

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Abstract

The invention discloses an adjustable constant-flow multifunctional blanking plug and mainly solves a problem that the traditional blanking plug a short constant-flow time. The blanking plug is characterized in that: the lower end of a fishing rod (1) is connected with a driving shaft (7) for rotating in an up and down sliding manner; the lower end of driving shaft (7) is provided with a rotationadjusting nut (3) which is connected with the inside of a main body (2) through threads; the lower end of the rotation adjusting nut (3) is provided with a rotary telescopic rod (9); the upper end ofa plunger (4) is provided with a telescopic rod (10) which is fit and connected with the rotary telescopic rod (9) in an up and down sliding manner; a balance spring (5) is arranged between the rotation adjusting nut (3) and the plunger (4); the main body (2) on the lower end of the plunger (4) is fixed with a limiting pin (6) for limiting; and the diameter of an axial internal hole of the plunger (4) is 11 millimeters. The adjustable constant-flow multifunctional blanking plug has the characteristic of long automatic adjustment and long constant-flow time.

Description

Technical field: [0001] The invention relates to a plug used in an eccentric water distributor in the field of oil recovery, in particular to an adjustable constant-flow multifunctional plug. Background technique: [0002] In the field of oil recovery, in order to enhance the recovery factor, the production degree of the oil layer is improved by layered water injection. Water injection wells generally use eccentric water distributors, and the water injection volume is controlled by the plug of eccentric water distributors. At present, the test and adjustment efficiency of the adjustable faucet plug has been doubled, but due to the short time for deployment and reservoir pressure stabilization, the pass rate of water injection dropped from 95% to 60% one month after the test. However, due to structural reasons, the constant flow plug has problems such as decreased spring force, enlarged nozzle, and jamming, which lead to short constant flow time and short service life, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/20
Inventor 董力维
Owner 董力维
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