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Liner hanger and setting tool

A liner hanger and tool technology, used in sealing/packing, wellbore/well components, earth-moving drilling, etc. Ability and versatility

Inactive Publication Date: 2012-07-18
荆州市赛瑞能源技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional liner-suspended packer has low pressure resistance and needs to rotate the pipe string when it is dropped, which fails to achieve the required purpose during construction
Especially i...

Method used

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  • Liner hanger and setting tool
  • Liner hanger and setting tool
  • Liner hanger and setting tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The liner hanger and the setting tool are composed of the liner hanger and the setting tool, and the setting tool is connected with the thread on the center pipe 2 of the liner hanger through the thread on the slip 29 .

[0015] The tailpipe hanger is composed of a connecting sleeve 1, a central tube 2, a hexagon socket set screw 3, a shear pin 4, a lock ring 5, a lock ring sleeve 6, an upper slip 7, an upper cone 8, and an outer back ring 9. Steel pin 10, inner back ring 11, retaining ring 12, rubber tube inner back ring 13, rubber tube 14, lower cone 15, lower slips 16 and lower joint a17. The connection sleeve 1 is connected with the lock ring sleeve 6 through the hexagon socket set screw 3, and the lock ring sleeve 6 is equipped with the lock ring 5 and the internal hexagon set screw 3, and the upper slip 7 and the lower slip 16 are set on the central tube 2, forming an anchoring system; the upper cone 8 and the lower cone 15 are connected and set on the central tub...

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PUM

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Abstract

The invention relates to a liner hanger and a setting tool, which belong to the technical field of liner hanging packers and include the liner hanger and the setting tool. The setting tool is connected with a screw thread on a central tube of the liner hanger through a screw thread on a slip. A stainless steel ball is put into an oil casing to achieve sealing, a piston is moved down under the action of hydraulic force to cut off a shear pin, and a connecting sleeve is pushed to force the liner hanger to complete setting through an adjusting nut. In addition, the lip is not supported, and release of the setting tool from the liner hanger can be achieved by lifting up a tubular pile. The linear hanger and the setting tool are high in pressure bearing capacity, the setting tool is highly universal, setting and releasing can be achieved by one-step operating, no displacement of the central tube of a packer occurs in setting of the liner hanger, no rotation or movement of the tubular pile is needed, a large diameter and high hanging capacity are realized after setting is released and a fracturing string or production string is tied back, and the liner hanger and the setting tool are suitable for various wells, such as shallow wells, deep wells, high-inclination wells, horizontal wells and the like.

Description

technical field [0001] The invention relates to a liner hanger and a setting tool, belonging to the technical field of liner hanger packers. Background technique [0002] When oil and gas wells are cemented or multi-stage continuous fracturing in horizontal wells, liner suspension packers or liner hangers are usually required for liner suspension or interlayer isolation. The liner hanger usually needs to hang a heavy liner. During construction, it needs to use a special setting tool to lower it to the designated position in the well, and then rely on the setting tool to set the liner hanger so that it is anchored in the casing. on the wall. The traditional liner-suspended packer has low pressure resistance and needs to rotate the pipe string when it is dropped, which fails to achieve the required purpose during construction. Especially in highly deviated wells, horizontal wells or ultra-deep wells, where it is not convenient to transmit torque, high pressure, and high load...

Claims

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Application Information

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IPC IPC(8): E21B23/01E21B33/12
Inventor 程市君王琼
Owner 荆州市赛瑞能源技术有限公司
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