CA2143793C - Logement cintre servant au forage en fonds de puits - Google Patents

Logement cintre servant au forage en fonds de puits

Info

Publication number
CA2143793C
CA2143793C CA 2143793 CA2143793A CA2143793C CA 2143793 C CA2143793 C CA 2143793C CA 2143793 CA2143793 CA 2143793 CA 2143793 A CA2143793 A CA 2143793A CA 2143793 C CA2143793 C CA 2143793C
Authority
CA
Canada
Prior art keywords
housing
mandrel
ring
face
central axis
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 2143793
Other languages
English (en)
Other versions
CA2143793A1 (fr
Inventor
Raymond Dean Livingstone
David Kutinski
Murray Wilson
Winston Smith
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.)
National Oilwell Varco LP
Original Assignee
Canadian Downhole Drill Systems Inc
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 Canadian Downhole Drill Systems Inc filed Critical Canadian Downhole Drill Systems Inc
Priority to CA 2143793 priority Critical patent/CA2143793C/fr
Publication of CA2143793A1 publication Critical patent/CA2143793A1/fr
Application granted granted Critical
Publication of CA2143793C publication Critical patent/CA2143793C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
CA 2143793 1995-02-27 1995-02-27 Logement cintre servant au forage en fonds de puits Expired - Fee Related CA2143793C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2143793 CA2143793C (fr) 1995-02-27 1995-02-27 Logement cintre servant au forage en fonds de puits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2143793 CA2143793C (fr) 1995-02-27 1995-02-27 Logement cintre servant au forage en fonds de puits

Publications (2)

Publication Number Publication Date
CA2143793A1 CA2143793A1 (fr) 1996-08-28
CA2143793C true CA2143793C (fr) 1998-04-21

Family

ID=4155348

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2143793 Expired - Fee Related CA2143793C (fr) 1995-02-27 1995-02-27 Logement cintre servant au forage en fonds de puits

Country Status (1)

Country Link
CA (1) CA2143793C (fr)

Also Published As

Publication number Publication date
CA2143793A1 (fr) 1996-08-28

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed