Underground electromechanical combined under-pressure operation device and application method

Abstract

The invention provides an underground electromechanical combined under-pressure operation device and an application method. Through the effective cooperation of a main core system underground combinedoperation and ground control system, a blowout preventer, a blooie pipe, a pulley support, a pulley and the like, a complete operation system capable of completing underground restrictor sleeve milling and salvage can be constructed. Underground work condition parameter collection, ground parameter display and time control design can achieve visual controllable operation management can be realized, and reliability and safety of construction are effectively guaranteed. By means of elastic limit protection design, when tongs used in the salvage procedure cannot grab a target, the target can beautomatically dropped in a limit protection range, so that new underground accidents are avoided. A designed ground gas filtering and recycling tank has a certain time concept for safety, energy conservation and environmental protection management. The whole operation management process is high in controllability, the efficiency of handling actual underground accidents is good, and the device is suitable for being widely popularized in the field of natural gas well underground restrictor processing.

Description

technical field [0001] The invention belongs to the field of fishing for downhole chokes in natural gas wells, and relates to a downhole electromechanical combined with pressure operation device and a use method. Background technique [0002] Since a large part of natural gas wells in China use surface low-pressure transmission, this gas recovery process can not only reduce costs, but also facilitate safety management. device to achieve pressure reduction and slow flow temperature rise. In the actual production, the placement and salvage of the choke are completed with 3.2mm steel wire work vehicles. Limited, whenever the safety limit is reached, the protection pin will be cut off and the restrictor will be discarded automatically, so the success rate of salvage is very low, only about 40%, resulting in a large number of gas wells with diseased production . There is only one reason why it cannot be salvaged: the anchor slips cannot be separated from the restrictor body no...

AI Technical Summary

Problems solved by technology

At present, the research of relevant departments and institutions is still focused on improving the conventional salvage process of chokes, only improving the structure and strength of salvage equipment, and deepening research on a more objective and effective treatment process for dealing with the characteristic problems of choke sticking There are still very few, and so far there has been no public on-site practical application case report

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