Multi-layer intelligent tubular column controlled by single pipeline

A pipeline and intelligent technology, applied in the fields of fluid production, measurement, wellbore/well components, etc., can solve the problems of limited number of liquid flooding completion intervals, high cost of hydraulic control pipelines, and poor tool reliability, etc. The effect of improving performance and timeliness, reducing labor intensity and prolonging service life

Active Publication Date: 2022-01-11
DONGYING FLUID SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a single-pipeline to solve the problems of poor tool reliability, short service life, limited number of layers for liq

Method used

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  • Multi-layer intelligent tubular column controlled by single pipeline
  • Multi-layer intelligent tubular column controlled by single pipeline

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with accompanying drawing.

[0017] A single pipeline control multi-layer intelligent pipe string, including sealer 1, oil pipe 2, safety valve 3, production packer 4, joint 5, electric pump 6, circulation sliding sleeve 7, decoder 10, positioning sealing assembly Cheng 11, data acquisition instrument 12, multi-level control unit 13, isolation seal assembly 14, isolation packer 9, top packer 8, main pipeline 15, branch pipeline 19, cable 16, data acquisition system 18 and control system 17. The top of the oil pipe 2 is connected to the Christmas tree, the outer wall of the oil pipe 2 and the inner wall of the wellhead are installed with a sealer 1, and the bottom of the oil pipe 2 is sequentially installed with a safety valve 3, a production packer 4, a joint 5, Electric pump 6, circulating sliding sleeve 7, decoder 10, positioning sealing assembly 11, data acquisition instrument 12, multi-stage contro...

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Abstract

The invention relates to the field of intelligent well completion of oil and gas well exploitation, and particularly provides a multi-layer intelligent tubular column controlled by a single pipeline. A Christmas tree is connected with the top of an oil pipe, and sealers are installed on the outer wall of the oil pipe and the inner wall of a wellhead. A safety valve, a production packer, a connector, an electric pump, a circulating sliding sleeve, a decoder, a positioning sealing assembly, a data acquisition instrument, a multi-stage control unit and an isolation sealing assembly are sequentially installed at the bottom of the oil pipe from top to bottom, the positioning sealing assembly is in interference sealing connection with a top packer, the isolation sealing assembly is in interference sealing connection with an isolation packer, the decoder is connected with the control system through a main pipeline, the bottom of the decoder is connected with the multi-stage control unit through a branch pipeline, and the data acquisition instrument is connected with a data acquisition system through a cable. The reliability and timeliness are improved, real-time detection and adjustment are achieved, cost is saved, operation safety is improved, operation difficulty is lowered, labor intensity is lowered, and the service life is prolonged.

Description

technical field [0001] The invention relates to the field of intelligent well completion for oil and gas well exploitation, in particular to a multi-layer intelligent pipe string controlled by a single pipeline. Background technique [0002] Intelligent well completion technology is to build a closed-loop production management system by combining software and hardware closely through downhole measurement and control equipment, wellhead control devices, real-time remote control, data acquisition, analysis feedback adjustment control, well completion scheme design, data analysis and decision-making. . It provides a brand-new way to improve the level of oil reservoir operation and management, and has broad application prospects. [0003] At present, intelligent completion technology is mostly applicable to wells with complex geological conditions and complex structures, such as multi-layer development wells, long horizontal wells with long horizontal sections, offshore oil and...

Claims

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Application Information

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IPC IPC(8): E21B43/14E21B33/122E21B47/00E21B47/06E21B47/07E21B23/08
CPCE21B43/14E21B33/122E21B47/00E21B47/06E21B47/07E21B23/08
Inventor 焦青青许腾飞赵飞飞王威刘国滨罗卫刘淑静王宜凯
Owner DONGYING FLUID SCI & TECH
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