CA2585915C - Systeme de communication par pression de trepan a double joint d'etancheite - Google Patents

Systeme de communication par pression de trepan a double joint d'etancheite Download PDF

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Publication number
CA2585915C
CA2585915C CA2585915A CA2585915A CA2585915C CA 2585915 C CA2585915 C CA 2585915C CA 2585915 A CA2585915 A CA 2585915A CA 2585915 A CA2585915 A CA 2585915A CA 2585915 C CA2585915 C CA 2585915C
Authority
CA
Canada
Prior art keywords
seal
bit
annular
leg
fluid
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 - Lifetime
Application number
CA2585915A
Other languages
English (en)
Other versions
CA2585915A1 (fr
Inventor
Chris Edward Cawthorne
Gary R. Portwood
Robert H. Slaughter, Jr.
Peter Cariveau
Roger Didericksen
Robert Denton
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.)
Smith International Inc
Original Assignee
Smith International 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
Priority claimed from US08/982,081 external-priority patent/US6033117A/en
Application filed by Smith International Inc filed Critical Smith International Inc
Priority claimed from CA 2254741 external-priority patent/CA2254741C/fr
Publication of CA2585915A1 publication Critical patent/CA2585915A1/fr
Application granted granted Critical
Publication of CA2585915C publication Critical patent/CA2585915C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Earth Drilling (AREA)
CA2585915A 1997-12-01 1998-12-01 Systeme de communication par pression de trepan a double joint d'etancheite Expired - Lifetime CA2585915C (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US08/982,081 US6033117A (en) 1995-12-19 1997-12-01 Sealed bearing drill bit with dual-seal configuration
US08/982,081 1997-12-01
US6714997P 1997-12-02 1997-12-02
US60/067,149 1997-12-02
CA 2254741 CA2254741C (fr) 1997-12-01 1998-12-01 Systeme de communication par pression a trepan a double sceau

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA 2254741 Division CA2254741C (fr) 1997-12-01 1998-12-01 Systeme de communication par pression a trepan a double sceau

Publications (2)

Publication Number Publication Date
CA2585915A1 CA2585915A1 (fr) 1999-06-01
CA2585915C true CA2585915C (fr) 2010-08-17

Family

ID=38229499

Family Applications (3)

Application Number Title Priority Date Filing Date
CA2585915A Expired - Lifetime CA2585915C (fr) 1997-12-01 1998-12-01 Systeme de communication par pression de trepan a double joint d'etancheite
CA2585123A Expired - Lifetime CA2585123C (fr) 1997-12-01 1998-12-01 Systeme de communication par pression a trepan a double sceau
CA2585249A Expired - Lifetime CA2585249C (fr) 1997-12-01 1998-12-01 Systeme de communication par pression a trepan a double sceau

Family Applications After (2)

Application Number Title Priority Date Filing Date
CA2585123A Expired - Lifetime CA2585123C (fr) 1997-12-01 1998-12-01 Systeme de communication par pression a trepan a double sceau
CA2585249A Expired - Lifetime CA2585249C (fr) 1997-12-01 1998-12-01 Systeme de communication par pression a trepan a double sceau

Country Status (1)

Country Link
CA (3) CA2585915C (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108442886B (zh) * 2018-05-22 2023-11-17 西南石油大学 分体式三牙轮钻头
US10954730B1 (en) 2019-06-07 2021-03-23 Qes Pressure Control Llc Pressure control for gate-valve and hot-tap drilling systems
CN114320163B (zh) * 2022-03-14 2022-05-10 西南石油大学 一种用于牙轮钻头的密封件及牙轮钻头

Also Published As

Publication number Publication date
CA2585123A1 (fr) 1999-06-01
CA2585249A1 (fr) 1999-06-01
CA2585915A1 (fr) 1999-06-01
CA2585249C (fr) 2010-06-15
CA2585123C (fr) 2010-07-13

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Effective date: 20181203