Anti-theft hoop of oil production wellhead

Abstract

The invention discloses an anti-theft hoop of an oil production wellhead. The anti-theft hoop comprises a first hoop half body and a second hoop half body, wherein a first screw hole is formed in thefirst hoop half body, and a second screw hole is formed in the second hoop half body; studs are arranged in the first screw hole and the second screw hole; the anti-theft hoop further comprises a protective cap, a fixing piece, a locking block, a pressing pillar and an opening key; two ends of each stud are respectively provided with a first nut and a second nut; the first nuts are connected withthe first hoop half body; the second nuts are connected with the second hoop half body; the protective cap is arranged at the end parts of the first hoop half body and the second hoop half body; the locking block is arranged inside the first hoop half body; the locking block is connected with the studs; the fixing piece is arranged inside the second hoop half body; the fixing piece is connected with the studs; the opening key comprises a key body for opening the locking block and a mandril for opening the fixing piece. The problem that a hoop on a current oil well pipeline is easy to open is solved.

Description

technical field [0001] The invention relates to the technical field of oil production wellhead equipment, in particular to an oil production wellhead anti-theft clamp. Background technique [0002] The connections between valves, tees, polished rods, nozzle sleeves, etc. on the oil and water well Christmas tree are all connected by clamps. Therefore, the clamp is an indispensable connection device on the oil and water well Christmas tree. After the current clamp is installed, ordinary tools can be easily disassembled, and thieves can easily steal crude oil and wellhead equipment. In order to prevent the above-mentioned behavior, sometimes the bolts and nuts on the clamp are welded together, although it plays an anti-theft role. , but it is not conducive to subsequent disassembly, and disassembly is time-consuming and laborious. Contents of the invention [0003] The present invention aims at the above-mentioned deficiencies in the prior art, and provides an anti-theft hoo...

AI Technical Summary

Problems solved by technology

After the current clamp is installed, ordinary tools can be easily disassembled, and thieves can easily steal crude oil and wellhead equipment. In order to prevent the above-mentioned behavior, sometimes the bolts and nuts on the clamp are welded together, although it plays an anti-theft role. , but it is not conducive to subsequent disassembly, and disassembly is time-consuming and laborious

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