CA2568945C - Packer place a basse pression - Google Patents

Packer place a basse pression Download PDF

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Publication number
CA2568945C
CA2568945C CA2568945A CA2568945A CA2568945C CA 2568945 C CA2568945 C CA 2568945C CA 2568945 A CA2568945 A CA 2568945A CA 2568945 A CA2568945 A CA 2568945A CA 2568945 C CA2568945 C CA 2568945C
Authority
CA
Canada
Prior art keywords
piston
packer
assembly
annular recess
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CA2568945A
Other languages
English (en)
Other versions
CA2568945A1 (fr
Inventor
John Hughes
John Wilson Thomas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BJ Tool Services Ltd
Original Assignee
BJ Tool Services Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BJ Tool Services Ltd filed Critical BJ Tool Services Ltd
Publication of CA2568945A1 publication Critical patent/CA2568945A1/fr
Application granted granted Critical
Publication of CA2568945C publication Critical patent/CA2568945C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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  • Earth Drilling (AREA)

Abstract

Un outil de garniture d'étanchéité pour utilisation dans un forage avec une pression de fond de trou p, l'outil comprenant : un ensemble mandrin; un stabilisateur pour l'ensemble mandrin, pour une entrée en prise amovible du forage; un élément de garniture dans une cavité annulaire ayant un fond et deux parois opposées, la cavité annulaire étant compressible transversalement dans une position comprimée et placée à proximité de l'ensemble mandrin; et un ensemble piston pour entraîner une compression de l'élément de garniture dans la cavité annulaire, l'ensemble piston ayant une pluralité de pistons reliés pour agir en tandem, les pistons ayant une surface totale de face de piston de sorte qu'une application d'une pression p' à l'ensemble piston génère une force supérieure à p.
CA2568945A 2006-06-02 2006-11-27 Packer place a basse pression Active CA2568945C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US80378506P 2006-06-02 2006-06-02
US60/803,785 2006-06-02

Publications (2)

Publication Number Publication Date
CA2568945A1 CA2568945A1 (fr) 2007-12-02
CA2568945C true CA2568945C (fr) 2014-04-08

Family

ID=38792321

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2568945A Active CA2568945C (fr) 2006-06-02 2006-11-27 Packer place a basse pression

Country Status (1)

Country Link
CA (1) CA2568945C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110067527B (zh) * 2019-06-12 2023-09-29 天津凯雷油田技术有限公司 井下密封筒修复工具

Also Published As

Publication number Publication date
CA2568945A1 (fr) 2007-12-02

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Legal Events

Date Code Title Description
EEER Examination request
H11 Ip right ceased following rejected request for revival

Free format text: ST27 STATUS EVENT CODE: T-6-6-H10-H11-H101 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: TIME LIMIT FOR REVERSAL EXPIRED

Effective date: 20250527

H13 Ip right lapsed

Free format text: ST27 STATUS EVENT CODE: N-4-6-H10-H13-H100 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE FEE AND LATE FEE NOT PAID BY DEADLINE OF NOTICE

Effective date: 20251103

W00 Other event occurred

Free format text: ST27 STATUS EVENT CODE: N-6-6-W10-W00-W100 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: LETTER SENT

Effective date: 20251106