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Downhole intelligent-control-type packing injection proration device

An intelligent control and dispensing technology, which is applied in wellbore/well valve devices, sealing/packing, wellbore/well components, etc., can solve the problems of many cable connection points and complex on-site operations, and improve accuracy. The effect of simplifying the sealing process and saving the test cost

Active Publication Date: 2018-02-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One object of the present invention is to provide a downhole intelligent control isolation dispensing device to solve the technical defects of the existing cable dispensing tools with many cable connection points and complex on-site operation

Method used

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Embodiment Construction

[0025] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] The embodiment of the present invention provides a downhole intelligent control type isolation and distribution device. The core technical idea is to optimize the combination of the intelligent packer and the water distributor into one tool, share a set of control systems, and realize the integration of test data and power supply in the downhole. Shared, perform operations such as setting and unsealing of packers, layered flow testing, and deployment on the ground.

[0027] Such as figure 1 As shown, the packer dispenser provided by the embodiment of the present invention mainly includes a control chamber, a test and deployment water dispenser and a packer. One end of the test and adjustment water distribution device is conn...

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Abstract

The invention discloses a downhole intelligent-control-type packing injection proration device comprising a measuring and adjusting water flow regulator, an expanding type packer and a control bin. The expanding type packer is connected to one end of the measuring and adjusting water flow regulator, and the control bin is connected to the other end of the measuring and adjusting water flow regulator. The packing injection proration device comprises a packing proration main body which is internally provided with an adjustable water nozzle and a sensor for testing to-be-measure signals in packing and / or injection proration operation. A power liquid channel is formed in the packing proration main body, and an electric valve driven by a driving device is arranged in the packing proration mainbody and used for controlling power liquid to be injected into or flow out of the channel to provide or release pressure for a pressure cavity of the expanding type packer so as to achieve setting andunsetting of the packer. According to the core technological conception, the intelligent packer and the water flow regulator are optimized and combined into a tool and share one control system, sharing of testing data and a power source is achieved in the downhole, and operation of setting, unsetting, flow testing and allocation of the packer is implemented on the ground.

Description

technical field [0001] The invention belongs to the technical field of petroleum exploitation machinery, and in particular relates to an intelligently controlled downhole device integrating the functions of sealing and distribution injection. Background technique [0002] After the oil field is put into development, the energy of the oil layer itself will be continuously consumed as the production time increases, resulting in a continuous decline in the pressure of the oil layer. In order to maintain the pressure of the oil layer, there are mainly two methods: water injection and gas injection. Water injection is to inject water into the oil layer through the water injection well to replenish energy, and gas injection is to inject gas (natural gas, carbon dioxide, nitrogen or air) into the oil layer through the injection well. [0003] According to the requirements of the surrounding oil wells for water injection, the water injection wells distribute the water injection acco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/20E21B33/127E21B34/06E21B47/00
CPCE21B33/127E21B34/066E21B43/20E21B47/00
Inventor 石建设彭太祥罗江涛顾文滨
Owner CHINA PETROLEUM & CHEM CORP
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