Oil well wellhead protection device

Abstract

The invention discloses an oil well wellhead protection device, which comprises: an anti-theft cover with an opening, the opening is used to correspond to the flange of the oil well head, the anti-theft cover is provided with an opening, and the anti-theft cover is provided with an opening. The inner side wall is provided with a raised portion for abutting against the flange, and the inner side wall of the anti-theft cover is also provided with a limiting portion located below the raised portion; a connection fixedly connected to the side wall of the oil wellhead pipeline A connecting rod with upper and lower ends, and the upper and lower ends of the connecting rod are hinged with the connecting member; an operating member connected to the upper end of the connecting rod, the operating member can drive the connecting rod to make it Rotating around the connecting piece, the operating piece can be fixed with the oil wellhead pipeline and corresponds to the position of the opening; a limiting piece connected to the lower end of the connecting rod. The invention can make the wellhead of the oil well have the functions of anti-theft and anti-damage.

Description

technical field [0001] The invention relates to the field of oil and gas well development equipment and tools, in particular to an oil well head protection device. Background technique [0002] With the implementation and follow-up of the oilfield development process, a certain number of oil wells are used up and enter the abandonment stage every year, and then the wellheads of the abandoned oil wells need to be plugged; on the other hand, due to the construction of the gas storage, it is necessary to The wellheads of the old wells in the gas storage are sealed. The wellheads of the above two kinds of plugging treatment oil wells will be exposed for a long time, and they are connected with instruments and equipment such as pressure gauges for monitoring downhole conditions. Such oil wells are usually in an unattended state. Security risks. According to the current situation after actual production, the following problems generally occur: oil production wellhead casing valv...

AI Technical Summary

Problems solved by technology

The wellheads of the above two kinds of plugging treatment oil wells will be exposed for a long time, and they are connected with instruments and equipment such as pressure gauges for monitoring downhole conditions. Such oil wells are usually in an unattended state. Security risks

According to the current situation after actual production, the following problems generally occur: oil production wellhead casing valves are often damaged by people, and needle valve pressure gauges installed on the wellhead are often removed or smashed. People even disassemble and refit the wellhead pipelines in order to steal gas or oil

Although the conventional wellhead device after plugging treatment has perfect functions, it does not have an anti-theft and anti-sabotage structure. The existing wellhead anti-theft mechanism is generally set in the wellhead pipeline, which can solve the problem of stealing gas and oil, but it cannot Ensure that the external equipment exposed at the wellhead will not be damaged, and the existing anti-theft structure is complicated, and it is easy to be damaged and invalid after long-term storage without use, and there will be a problem that the wellhead cannot be opened after many years

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