High pressure screw thread manual repair tool and repair method thereof

Abstract

The invention provides a high pressure screw thread manual repair tool. The high pressure screw thread manual repair tool comprises a clamp fixing plate, the clamp fixing plate is provided with a first mounting hole, the first mounting hole penetrates through the body of the high pressure screw thread repair tool; four same second mounting holes are arranged around the first mounting hole; at least two same locking bolts penetrate through the side walls of the clamp fixing plate and against the body of the high-pressure screw thread repair tool; four same sleeves are connected between the bottom of the clamp fixing plate and an upper flange of a subsurface safety valve, the distance between the clamp fixing plate and the upper flange is limited; and four same fixing bolts penetrate throughthe second mounting hole, the sleeve and a control needle valve mounting hole, and are fixedly connected with the thread of the control needle valve mounting hole. The high pressure screw thread manual repair tool and repair method thereof also comprises a manual repair method for a high pressure screw thread. Through the high pressure screw thread manual repair tool of the invention, the sealingsurface repair tool of the high-pressure screw thread can repair the high-pressure screw thread online without removing the upper flange, the operation is easy and the cost of the oil field is greatly reduced.

Description

technical field [0001] The invention relates to a repair tool, in particular to a manual repair tool for a high-pressure threaded thread at the outlet end of a downhole safety valve control pipeline. Background technique [0002] At present, the high-pressure thread at the outlet end of the downhole safety valve control pipeline is pre-processed. When the tubing is run on site, the downhole safety valve control pipeline is installed together with the tubing, and the outlet end of the control pipeline is connected to the control needle valve on the upper flange. , the connection between the control needle valve and the downhole control pipeline is connected by high-pressure thread; when installing the upper flange, the downhole control pipeline should be connected to the control needle valve first, and then the upper flange should be fixed to the tubing spool; In the actual oil or gas production process, if the sealing surface of the high-pressure threaded thread leaks, the u...

AI Technical Summary

Problems solved by technology

[0002] At present, the high-pressure thread at the outlet end of the downhole safety valve control pipeline is pre-processed. When the tubing is run on site, the downhole safety valve control pipeline is installed together with the tubing, and the outlet end of the control pipeline is connected to the control needle valve on the upper flange. , the connection between the control needle valve and the downhole control pipeline is connected by high-pressure thread; when installing the upper flange, the downhole control pipeline should be connected to the control needle valve first, and then the upper flange should be fixed to the tubing spool; In the actual oil or gas production process, if the sealing surface of the high-pressure thread leaks, the upper flange needs to be disassembled for repair. The disassembly procedure is cumbersome and expensive

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