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Method for testing and dislodging oil well intelligent delamination

A technology of layered testing and intelligent switch, applied in earth-moving drilling, wellbore/well components, sealing/packing, etc., can solve the problems of complex operation, high cost, and many processes, and achieve simple operation and high success rate , the effect of reliable work

Inactive Publication Date: 2008-08-27
CHINA PETROLEUM & CHEM CORP
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the disadvantages of multiple procedures, complicated operation and high cost in the currently used technology for finding and blocking water, the present invention provides a method for intelligent layered testing and production of oil wells. This technology only needs to run a pipe string, The process of finding water can be completed automatically without ground intervention, and the process of water plugging and layer adjustment can be completed remotely on the ground without lifting and lowering the instrument, and layer adjustment can be repeated many times

Method used

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  • Method for testing and dislodging oil well intelligent delamination
  • Method for testing and dislodging oil well intelligent delamination

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Embodiment Construction

[0014] see figure 1 , figure 2 , the concrete embodiment that design is production layer 1 (25), production layer 2 (26), production layer 3 (27) three layers of oil layer exploitation. Discarding joint (2), safety joint (3), water blocking packer 1 (4), smart switch 1 (5), water blocking packer 2 (6), smart switch 2 (7), plugging The water packer 3 (8), the intelligent switcher 3 (9), and the water plugging packer 4 (10) are connected from top to bottom through short joints of tubing. Combined with the needs of the production process, the end of the water plugging packer 4 (10) is equipped with a plug (11), and according to the number of production and production layers of the oil well, the multi-level connection of the water plugging packer and the intelligent switch can be realized. Thereby, the multi-layer test of the production production layer can be realized; the intelligent intelligent switch is designed as a tool nipple, which is connected with the oil pipe up and ...

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Abstract

The invention discloses a method of testing and exploiting an oil well intelligently and hierarchically, mainly comprising a releasing joint, a safety joint, a water shutoff packer and an intelligent switch which are connected via a tubing nipple from top to bottom. The method not only can finish the process of water finding and water plugging fitting one-trip strings, but also can realize the action of an underground intelligent switch by sending commands through ground remote control to finish closing and opening of a horizon. The intelligent switch is highly automated, low in construction cost, without a trip or string operation, has the advantages of being simple to operate, working reliably and high in success rate.

Description

Technical field [0001] The invention relates to a process technology for finding and testing plugging water in oil wells during oilfield development, in particular to a method for intelligent layered testing and production of oil wells. It is suitable for one string to complete the production process of layered water search and water plugging, and the downhole switch action is realized through the ground remote control command to complete the opening and closing of the layers. The intelligent switch has a high degree of automation, no need to lift the instrument or perform string operations, low construction cost, simple operation, reliable work, and high success rate. Background technique [0002] As oilfield development enters the stage of medium-high water cut, the contradiction between layers becomes increasingly prominent. After a large amount of groundwater is ineffectively extracted, subsequent treatment and reinjection consume a lot of cost. How to find out and seal...

Claims

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Application Information

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IPC IPC(8): E21B33/10E21B49/08
Inventor 李仁忠朱晓荣汪团员谢小辉陈建达别香平程英姿
Owner CHINA PETROLEUM & CHEM CORP
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