A kind of anti-blocking hydraulic packer

A packer and hydraulic technology, applied in sealing/isolation, wellbore/well components, earthwork drilling and production, etc., can solve problems such as easy to set in advance, and achieve the effect of simple operation, ingenious design, and simple structure

Active Publication Date: 2019-11-26
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

[0003] The purpose of the present invention is to provide an anti-blocking hydraulic packer with simple structure and ingenious design to solve the problem that existing packers are easy to set in advance

Method used

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  • A kind of anti-blocking hydraulic packer
  • A kind of anti-blocking hydraulic packer
  • A kind of anti-blocking hydraulic packer

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Experimental program
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Embodiment Construction

[0031] The anti-blocking hydraulic packer consists of an upper joint 1, a lower joint 2, an inner center pipe 3, an outer center pipe 4, a rubber cartridge assembly, an upper guide ring 5, a lower guide ring 6, slips 7, and an upper cone 8 And the lower cone 9 constitutes: one end of the inner center pipe 3 is threadedly connected with an upper joint 1; the other end of the inner center pipe 3 is threadedly connected with a lower joint 2; the inner center pipe 3 is respectively connected with the upper joint 1 and the lower end by a set screw The joint 2 is fixedly connected; the purpose of such arrangement is to keep the inner center pipe 3 relatively fixed with the upper joint 1 and the lower joint 2 to avoid the problem of loosening.

[0032] The outer central tube 4 is movable on the inner central tube 3; the inner hole of the outer central tube 4 is a stepped through hole; the circumferential surface of the inner central tube 3 is provided with a stepped flange 32; The st...

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Abstract

The invention relates to a hydraulic packer for preventing resistance encountering, and belongs to the technical field of downhole operation tools. The hydraulic packer is composed of an upper joint,a lower joint, an inner central tube, an outer central tube, an upper cone and a lower cone; one end of the inner central tube is connected with the upper joint, the other end of the inner central tube is connected with the lower joint, the outer central tube is movably mounted on the inner central tube, one end of the outer central tube is connected with an upper guiding ring, and the other end of the outer central tube is in threaded connection with a releasing sleeve; the lower cone is mounted at one end of the releasing sleeve; a lower guiding ring is movably mounted on the outer central tube, the other end of the lower guiding ring is in threaded connection with a piston sleeve, and an upper piston and a lower piston are movably mounted in the piston sleeve; and an upper piston retaining ring is fixedly mounted on the position, between the upper piston and the lower piston, of the outer central tube. The hydraulic packer is simple in structure and ingenious in design, the problemthat an existing pack is extremely prone to setting in advance is solved, and the demands of oilfield use are met.

Description

technical field [0001] The invention relates to an anti-blocking hydraulic packer, which belongs to the technical field of downhole operation tools. Background technique [0002] In the field of petroleum exploration and production, the packer can play the role of sealing off the production layer or construction layer to prevent interlayer fluid and pressure from interfering with each other, so as to meet the needs of various layering technical measures, and facilitate plugging, The use of workover operations such as sealing strings. In addition, the packer can also isolate the interlayer fluid and pressure to protect the oilfield casing, thereby improving the working conditions of the casing, and then saving and fully utilizing the formation energy to improve the production efficiency of the oil well. Therefore, the packer is an important part in the production of oilfield operations; however, due to the limitation of the structure of the existing packer or the influence o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B33/1295E21B33/128
CPCE21B33/1285E21B33/1295
Inventor 王鲜程市君陶风王琼张健朱向斌马小平周颖花昀李荆州田学虎
Owner 荆州市赛瑞能源技术有限公司
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