Title:
INFLATABLE ACTIVE PACKER
Document Type and Number:
WIPO Patent Application WO/2023/216564
Kind Code:
A1
Abstract:
An inflatable active packer, comprising a cylindrical inner steel pile. The inner steel pile is coaxially sleeved with a sleeve, the inner diameter of the sleeve is larger than the outer diameter of the inner steel pile, and the length of the sleeve is not larger than that of the inner steel pile; a guide block is fixedly connected to the position, close to the end portion of the sleeve, of the inner wall of the sleeve, and the inner wall of the sleeve abuts against a high-strength snap-fitting layer; a rubber capsule is fixedly connected to the middle of the high-strength snap-fitting layer, and the high-strength snap-fitting layer and the rubber capsule are both made of one or more layers of cloth-inserted rubber; two ends of the high-strength snap-fitting layer are fixedly connected to the sleeve by means of pressing devices; an inflation air nozzle mounting hole is formed in the middle of the high-strength snap-fitting layer, the sleeve is provided with a through hole which is coaxial with the inflation air nozzle mounting hole and has the same diameter with the inflation air nozzle mounting hole, and an inflation air nozzle is snap-fitted in the inflation air nozzle mounting hole and penetrates through the sleeve and the high-strength snap-fitting layer for being inserted into the rubber capsule. The inflatable active packer can provide supporting force larger than the gravity of cement paste, so that the sealing performance is optimal, and the inflatable active packer is beneficial to deep sea applications.
More Like This:
| WO/2011/115805 | PACKER DEPLOYED FORMATION SENSOR |
| WO/2020/077419 | INFLATABLE DOWN HOLE BAG WITH INFLATION REAGENT RELEASE |
Inventors:
ZHANG GUI (CN)
ZHANG HENG (CN)
YE CHANGQING (CN)
JIANG XUEYUAN (CN)
YUAN WEI (CN)
CUAN BINGCHEN (CN)
XING YUZHUO (CN)
ZHANG HENG (CN)
YE CHANGQING (CN)
JIANG XUEYUAN (CN)
YUAN WEI (CN)
CUAN BINGCHEN (CN)
XING YUZHUO (CN)
Application Number:
PCT/CN2022/136184
Publication Date:
November 16, 2023
Filing Date:
December 02, 2022
Export Citation:
Assignee:
XIAN SUNWARD AEROMAT CO LTD (CN)
International Classes:
E21B33/127; E02D27/52
Foreign References:
| CN115045330A | 2022-09-13 | |||
| CN113502797A | 2021-10-15 | |||
| CN110056546A | 2019-07-26 | |||
| CN214994139U | 2021-12-03 | |||
| CN102459806A | 2012-05-16 | |||
| CN109466085A | 2019-03-15 | |||
| CN108729873A | 2018-11-02 | |||
| GB2295836A | 1996-06-12 | |||
| US20030037932A1 | 2003-02-27 |
Attorney, Agent or Firm:
SHENZHEN DISI-ELITE INTELLECTUAL PROPERTY AGENCY (CN)
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