CA2521287C - Double train de tiges de forage de paroi - Google Patents

Double train de tiges de forage de paroi Download PDF

Info

Publication number
CA2521287C
CA2521287C CA 2521287 CA2521287A CA2521287C CA 2521287 C CA2521287 C CA 2521287C CA 2521287 CA2521287 CA 2521287 CA 2521287 A CA2521287 A CA 2521287A CA 2521287 C CA2521287 C CA 2521287C
Authority
CA
Canada
Prior art keywords
inner tube
tube
assembly
outer tube
drilling
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.)
Expired - Fee Related
Application number
CA 2521287
Other languages
English (en)
Other versions
CA2521287A1 (fr
Inventor
Kris L. Church
William G. Riel
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.)
US Steel Tubular Products LLC
Original Assignee
Individual
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
Priority claimed from US10/972,885 external-priority patent/US7152700B2/en
Application filed by Individual filed Critical Individual
Publication of CA2521287A1 publication Critical patent/CA2521287A1/fr
Application granted granted Critical
Publication of CA2521287C publication Critical patent/CA2521287C/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

CA 2521287 2004-10-25 2005-09-27 Double train de tiges de forage de paroi Expired - Fee Related CA2521287C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/972,885 2004-10-25
US10/972,885 US7152700B2 (en) 2003-11-13 2004-10-25 Dual wall drill string assembly

Publications (2)

Publication Number Publication Date
CA2521287A1 CA2521287A1 (fr) 2006-04-25
CA2521287C true CA2521287C (fr) 2009-08-04

Family

ID=36242675

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2521287 Expired - Fee Related CA2521287C (fr) 2004-10-25 2005-09-27 Double train de tiges de forage de paroi

Country Status (1)

Country Link
CA (1) CA2521287C (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10246954B2 (en) 2015-01-13 2019-04-02 Saudi Arabian Oil Company Drilling apparatus and methods for reducing circulation loss
US10260295B2 (en) 2017-05-26 2019-04-16 Saudi Arabian Oil Company Mitigating drilling circulation loss
CN110656926B (zh) * 2019-11-14 2024-02-09 上海市城市建设设计研究总院（集团）有限公司 基于钻探设备浅层有害气体探测装置的使用方法
CN113863879B (zh) * 2020-06-30 2023-07-21 中国石油化工股份有限公司 一种气体反循环钻井用分流装置

Also Published As

Publication number Publication date
CA2521287A1 (fr) 2006-04-25

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20190927