A packer rubber cylinder and packer

A packer and rubber cartridge technology, applied in the field of packer rubber cartridges and packers, can solve problems such as unstable sealing of rubber cartridges, achieve increased expansion strength and sealing effect, long service life, and better sealing performance good effect

Active Publication Date: 2022-07-15
SHANDONG HENGCHI PETROLEUM EQUIP CO LTD
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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 solve the problem of unstable or poor sealing of the rubber cartridge in the prior art, and propose a packer rubber cartridge and a packer

Method used

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  • A packer rubber cylinder and packer
  • A packer rubber cylinder and packer
  • A packer rubber cylinder and packer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] refer to Figure 1-4 , a packer rubber cylinder and a packer, comprising a first central pipe 1, an annular sliding groove 101 is opened inside the first central pipe 1, and a sliding cylinder 2 is slidably connected inside the annular sliding groove 101, and the sliding cylinder 2 A first hydraulic cylinder 3 is fixedly connected between one side of the sliding cylinder 2 and one side of the annular sliding groove 101, and a second central pipe 4 is fixedly connected to the other side of the sliding cylinder 2. The surface of the first central pipe 1 and the sliding cylinder 2 are fixedly connected. A first casing 5 is fixedly sleeved on the surfaces of the two first casings 5, a rubber cylinder 6 is fixedly connected between the adjacent sides of the two first casings 5, and the sliding cylinder 2 is fixedly connected with a spreader assembly, and the spreader assembly includes a guide block 8. The guide block 8 is fixedly installed on the surface of the sliding cylin...

Embodiment 2

[0040] refer to Figure 5 , a packer rubber barrel, including a packer, and also includes a rubber barrel 6, the rubber barrel 6 includes an upper rubber barrel 601, a middle rubber barrel 602 and a lower rubber barrel 603, and the upper rubber barrel 601, the middle rubber barrel 603 602 and the lower rubber cylinder 603 are fixedly connected in sequence from top to bottom; the rubber cylinder 6 is made of nitrile rubber, which has good high temperature and high pressure resistance. The shell 5 moves toward the middle, and the arc-shaped push plate 10 presses outward against the inner wall of the middle rubber cylinder 602, and the middle rubber cylinder 602 is soft and has good elasticity. When the cylinder 602 is used, the glue inside the middle rubber cylinder 602 flows to both ends, so that the middle part of the middle rubber cylinder 602 first bulges and closes to the oil production channel. When the barrel 602 expands outward, it drives the lower edge of the upper glu...

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PUM

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Abstract

The invention discloses a packer rubber cylinder and a packer, belonging to the field of packers. A packer rubber cylinder and a packer, comprising a first central pipe, an annular sliding groove is opened inside the first central pipe, a sliding cylinder is slidably connected inside the annular sliding groove, and the sliding cylinder is A first hydraulic cylinder is fixedly connected between one side and one side of the annular sliding groove, and a second center pipe is fixedly connected to the other side of the sliding cylinder; The connecting rod and the arc-shaped push plate make the stability of the rubber cylinder of the device better. By providing a supporting force to the inner side of the rubber cylinder, the sealing effect of the rubber cylinder is greatly increased, which is worthy of promotion. The connection efficiency is faster, the slip mechanism is not easy to be blocked, the efficiency of setting and unsealing is faster, and the sealing between the pipe string and the joint is better.

Description

technical field [0001] The invention relates to the technical field of packers, in particular to a packer rubber cylinder and a packer. Background technique [0002] With the deepening of exploration and development work in the petroleum industry, oil companies have turned to oil and gas exploration in harsh environments, that is, the depth of the well is getting bigger and the situation is getting more and more complicated. It is well known that deep wells and ultra-deep wells generally have high formation pressure. , the high formation temperature is a great challenge to the oil test test, and the test packer is one of the key tools for the oil test operation. It undertakes the important task of sealing the oil casing annulus and ensuring the safety of the wellbore; The packer also needs to be lifted out of the ground smoothly to create space for subsequent operations. The rubber cylinder for testing the packer is its core. Facing the characteristics of high temperature an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B33/127E21B33/129E21B33/126E21B33/12E21B37/00
CPCE21B33/127E21B33/129E21B33/126E21B33/1208E21B37/00
Inventor 姜忠新赵利国彭尚谦
Owner SHANDONG HENGCHI PETROLEUM EQUIP CO LTD
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