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Micro downhole liquid station

A micro-fluid and micro-technology, applied in drilling equipment, wellbore/well components, wellbore/well valve devices, etc., can solve the problems of high cost of well completion and workover, long oil transmission distance, high risk of collision damage, etc. , to achieve the effect of eliminating downhole safety hazards, improving control delay, and avoiding workover operations

Pending Publication Date: 2020-08-25
STARSE ENERGY & TECH GROUP
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the traditional problem of remotely controlling the opening and closing of downhole safety valves through the uphole hydraulic system. The external oil passages are connected one by one to the outside of the oil delivery pipes. The risk of damage is high, the cost of well completion and workover is high, and due to the long transmission distance of the oil circuit, the long-distance hydraulic control has a certain delay and there are technical problems of inconvenient maintenance

Method used

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Embodiment Construction

[0024] In order to make the present invention more obvious and understandable, the preferred embodiments are described in detail as follows in conjunction with the accompanying drawings:

[0025] Such as Figure 1-5 As shown, the present invention provides a kind of miniature downhole liquid station, comprises the upper hole electrical control system 13, the intelligent composite continuous casing 15, the downhole electrical control system 14 and the downhole miniature liquid station 2; The upper hole electrical control system 13 passes the intelligent composite continuous casing 15 is connected with the downhole electrical control system 14, and the downhole electrical control system 14 is connected with the downhole micro liquid station 2; Connect one end of the box to one end of the box. The downhole electrical control system 14 includes a power carrier machine two, a remote data collection transmission module 21 and a relay 22; connected, the other end of the relay 22 is...

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Abstract

The invention relates to a micro downhole liquid station, and belongs to the technical field of downhole production equipment. The micro downhole liquid station comprises an up-hole electric control system, a smart composite continuous casing pipe, a downhole electric control system and a downhole micro liquid station, wherein the up-hole electric control system is connected with the downhole electric control system through the smart composite continuous casing pipe; the downhole electric control system is connected with the downhole micro liquid station; and the downhole electric control system and the downhole micro liquid station are arranged in the same semi-cylindrical box. According to the micro downhole liquid station, an up-hole electric system is used for controlling the downholeliquid station to open a downhole safety valve, so that the problem of control delay of a conventional safety valve is improved greatly. In addition, the working state of the downhole safety valve ismonitored accurately in real time, so that the downhole potential safety hazard is eliminated, and the workover operation is avoided. The micro downhole liquid station is designed into a form in whicha petroleum pipeline is surrounded by a semi-cylindrical body in order to adapt to the downhole narrow working space.

Description

technical field [0001] The invention relates to a miniature downhole fluid station, which belongs to the technical field of downhole production equipment. Background technique [0002] Downhole safety valve (SSSV) (SubSurface Safety Valve) is a kind of valve installed in oil and gas wells, in the event of fire, pipeline rupture, and irresistible natural disasters (such as earthquakes, ice conditions, strong typhoons, etc.) It is a downhole tool that can be shut down in an emergency to prevent blowout and ensure oil and gas well facilities and production safety. The downhole safety valve shuts down the oil circuit urgently to prevent blowout when abnormal conditions occur in the system. The traditional downhole safety valve is remotely controlled to open and close through the hydraulic system on the well. The general principle of the traditional ground-controlled downhole safety valve is: hydraulic pressure is applied from the ground, and the high-pressure liquid enters the ...

Claims

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Application Information

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IPC IPC(8): E21B34/08E21B34/16E21B17/00F15B21/00F15B21/08
CPCE21B17/003E21B34/08E21B34/16F15B21/00F15B21/08
Inventor 李伯仁陈光利丁柏松马自江杭鲁滨黄晓波朱长林唐少鹏黄晓杰林士森
Owner STARSE ENERGY & TECH GROUP
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