Mechanical-electrical integration separate production packer

Abstract

The invention relates to a mechanical-electrical integration separate production packer. An upper connector is in threaded connection with one end of a central pipe, and a setting assembly is arrangedon the outer circumference of the central pipe; the other end of the central pipe is in threaded connection with a transfer connector, a through hole is formed in the transfer connector, the inner circumference of the transfer connector is connected with an outer steel sleeve, the inner circumference of the outer steel sleeve is connected with a motor system through an outer component, the frontend of the motor system is connected with a pump valve system at the front end through a transmission lead screw, and different pipelines in the pump valve system are communicated with the through hole to achieve the setting and deblocking functions; a circuit system is arranged at the rear end of the motor system and connected with the motor system through a control cable; the tail end of the outer steel sleeve is in threaded connection with a lower connector. According to the separate production packer, the oil well completion technology is organically combined in a mechanical-electrical integration mode, the information processing and control functions of electronic devices are added or fused in a mechanical device of the packer, and a key technology is provided for a digital oil fieldproduction management decision platform.

Description

technical field [0001] The invention relates to a separate recovery packer with electromechanical integration, and belongs to the technical field of oil recovery and well completion in oil fields. Background technique [0002] The digital oil field shows that oil and gas field development will enter a new closed-loop stage of intelligence, automation, visualization, and real-time. Intelligent well completion is the application of modern measurement and control technology, mechatronics technology, computer and network multimedia technology, etc. Multi-parameter testing, multi-functional operation, technical method system of downhole automatic control and ground network collaborative decision-making. Therefore, the intelligent completion system must have the two functions of simultaneously completing downhole data monitoring and remote control of downhole mining. [0003] Although the intelligent well completion systems developed by major foreign oil companies are not the sa...

AI Technical Summary

Problems solved by technology

[0004] 1. In order to meet the requirements of layered and mixed mining of multi-reservoir layers, hydraulic control pipelines or control cables need to be lowered. All kinds of cables must pass through the packer before they can be connected to the downhole controller. The more layers there are, the more cables The more the number, the design structure of the packer will seriously affect the sealing performance;

[0005] 2. Using multi-stage packers in series, the lifting tonnage of unsealing is relatively large, and the well cannot be washed. Once sand is produced in the formation, it will bring the risk of overhaul operation to the unsealing of the completion string, which will cost a lot of money;

[0006] 3. Using the existing packer which cannot be directly judged its setting state and sealing state;

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