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High pressure screw thread manual repair tool and repair method thereof

A technology for repairing tools and high-voltage wires, applied in the field of repairing tools, can solve problems such as high cost and cumbersome disassembly procedures, and achieve the effects of saving production costs, improving work efficiency and high cost performance.

Pending Publication Date: 2019-02-22
MEIZUAN SHENHAI ENERGY TECH RES & DEV SHANGHAI CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • High pressure screw thread manual repair tool and repair method thereof
  • High pressure screw thread manual repair tool and repair method thereof
  • High pressure screw thread manual repair tool and repair method thereof

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] When using the high-pressure threaded thread seal surface repair tool 12 to repair the high-pressure threaded thread 5 protruding from the upper flange 7 control needle valve, it is usually necessary to disassemble the upper flange 7 . Such as image 3 As shown, one end of the high-voltage threaded thread 5 is provided with a high-voltage threaded thread sealing surface 6, and the included angle between the high-voltage threaded threaded sealing surface...

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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...

Claims

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Application Information

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IPC IPC(8): B23P6/00
CPCB23P6/00
Inventor 陈志兵
Owner MEIZUAN SHENHAI ENERGY TECH RES & DEV SHANGHAI CO LTD
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