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A Retrievable Suspension Packer with Two Rubber Tubes

A technology for hanging packers and rubber cartridges, which is applied in sealing/packing, wellbore/well parts, earthwork drilling and production, etc. It can solve the problems of complex unpacking and poor sealing effect, and achieve simple unpacking and simple operation Convenience, dual pressure for simple results

Active Publication Date: 2021-07-16
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

[0004] The purpose of the present invention is to provide a double-rubber-tube detachable suspension packer with stable setting, double pressure guarantee, and simple unsealing to solve the problems of poor sealing effect and complicated unsealing existing in existing packers

Method used

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  • A Retrievable Suspension Packer with Two Rubber Tubes
  • A Retrievable Suspension Packer with Two Rubber Tubes
  • A Retrievable Suspension Packer with Two Rubber Tubes

Examples

Experimental program
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Effect test

Embodiment Construction

[0027] The removable suspension packer of the double rubber cylinder is composed of a central pipe, an upper rubber cylinder group 1, an upper locking piece 2, a lower rubber cylinder group 3, a slip 4 and a lower locking piece 5. The central pipe is used to connect the oil pipe to transmit hydraulic pressure. The central tube is composed of an upper central tube 28 and a lower central tube 29. One end of the upper central tube 28 is provided with a bypass hole 30, and the upper central tube 28 below the bypass hole 30 is provided with a plurality of unsealing flanges at intervals. 31. The bottom end of the upper central tube 28 is symmetrically provided with an upper pressure hole 32 , and an upper support boss 33 is provided on the upper central tube 28 between the upper pressure hole 32 and the unsealing flange 31 .

[0028] The top end of the upper central pipe 28 is threaded with an upper joint 6, which is fixedly connected with the upper central pipe 28 by fastening screw...

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Abstract

The invention relates to a removable suspension packer with double rubber tubes, which belongs to the field of downhole operation of oil and gas wells. It consists of a central tube, an upper rubber tube set, an upper locking piece, slips, a lower rubber tube set, and a lower locking piece. The top end of the central tube is threaded with an upper joint, and the upper central tube below the upper joint is movable. Unsealing joint, the central tube below the unsealing joint is provided with an upper rubber tube group through the upper bushing, the upper locking piece is movably installed on the central tube under the upper rubber tube group, and the bottom end of the central tube is threaded with a lower Joint, the central tube above the lower joint is equipped with a lower locking piece, the lower locking piece is meshed with the upper locking piece, and the top of the lower locking piece is provided with a lower rubber tube group through a lower bushing, and the lower rubber tube set and the upper locking Slips are arranged between the parts through the lower cone and the upper cone. The packer is stable in setting and easy to unsealing, solves the problems of poor sealing effect and complicated unsealing existing in existing packers, and meets the isolation needs of downhole operations.

Description

technical field [0001] The invention relates to a removable suspension packer with double rubber tubes, which belongs to the field of downhole operation of oil and gas wells. Background technique [0002] The packer is a downhole tool widely used in petroleum exploration and development. It is used to seal off the annulus of the oil casing; The contact pressure is generated between the rubber sleeve and the casing, thereby sealing off the oil casing annulus, realizing the purpose of isolating production layers and protecting the casing. The working performance of the packer puts forward higher requirements. [0003] After the oil field was put into development, with the increase of production time, the proportion of casing damage in oil and water wells became higher and higher; the occurrence of casing damage caused the rubber cartridges of conventional packers to gradually fail in the later use process, seriously It affects the normal production of oil and water wells, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B33/126
Inventor 张健王琼陶风朱向斌王璞杨阳李荆州马小平王鲜周颖
Owner 荆州市赛瑞能源技术有限公司
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