Auxiliary device of dismounting and mounting of production tree hydraulic drive main valve

Abstract

The invention relates to an auxiliary device of dismounting and mounting of a production tree hydraulic drive main valve. The device comprises a base, a lifting nut, a bracket and a supporting part, ascrew joint hole is formed in the middle of the base, the lifting nut is arranged in the screw joint hole in a penetrating manner to be mounted into the base, the lifting nut can do lifting motion along the base, the bracket is mounted on the top of the lifting nut, and comprises a bottom plate connected with the lifting nut and two side plates which are mounted on the bottom plate in a relatively perpendicular manner and extend upwards, a supporting bearing assembly used for bearing a production tree hydraulic drive main valve is arranged on the edge of the top of each side plate, and the supporting part mounted on the bottom of the base and used for positioning and supporting the whole device. Compared with a traditional method that a production tree hydraulic drive main valve is dismounted and mounted through cooperation of at least three persons in one day, the auxiliary device has the advantages that one person can finish dismounting and mounting work with two hours, time and labor are saved, work efficiency is improved, work cost is reduced, safety is improved, aerial work and lifting work are not needed, and crossed work is reduced.

Description

technical field [0001] The invention relates to the technical field of petroleum and natural gas equipment, in particular to an auxiliary device for disassembling and assembling a christmas tree sap-driven main valve. Background technique [0002] A Christmas tree is an assembly that sits at the opening to the top of the well and includes valves for measurement and maintenance, safety systems and a range of monitoring instruments. The Christmas tree connects the production pipeline and the oil flow pipe from the downhole, and at the same time serves as an important barrier to isolate the top of the oil well from the external environment. It includes a number of valves that can be used to regulate or stop the gushing of produced crude oil vapor, natural gas and liquids from the well. Offshore trees are connected to the production manifold system through subsea pipelines. [0003] Due to factors such as the nature of the production medium, fluid flow rate, fluid composition,...

AI Technical Summary

Problems solved by technology

At present, there are no auxiliary tools and devices for efficiently dismantling and installing the gas production tree sap-driven main valve in domestic and foreign markets. The traditional method of dismantling and installing has low operating efficiency, long time, high cost and high safety risk.

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