CA2787038A1 - Reduction de pression de contact entre paliers de trepan - Google Patents

Reduction de pression de contact entre paliers de trepan Download PDF

Info

Publication number
CA2787038A1
CA2787038A1 CA2787038A CA2787038A CA2787038A1 CA 2787038 A1 CA2787038 A1 CA 2787038A1 CA 2787038 A CA2787038 A CA 2787038A CA 2787038 A CA2787038 A CA 2787038A CA 2787038 A1 CA2787038 A1 CA 2787038A1
Authority
CA
Canada
Prior art keywords
drill bit
reduced
bearing surface
lack
bearing
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.)
Abandoned
Application number
CA2787038A
Other languages
English (en)
Inventor
Ping C. Sui
Gary E. Weaver
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.)
Halliburton Energy Services Inc
Original Assignee
Halliburton Energy Services 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 Halliburton Energy Services Inc filed Critical Halliburton Energy Services Inc
Priority to CA2842758A priority Critical patent/CA2842758A1/fr
Priority claimed from PCT/US2011/025427 external-priority patent/WO2011088477A2/fr
Publication of CA2787038A1 publication Critical patent/CA2787038A1/fr
Abandoned legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
CA2787038A 2010-01-12 2011-02-18 Reduction de pression de contact entre paliers de trepan Abandoned CA2787038A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2842758A CA2842758A1 (fr) 2010-01-12 2011-02-18 Reduction de pression de contact entre paliers de trepan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2011/025427 WO2011088477A2 (fr) 2010-01-12 2011-02-18 Réduction de pression de contact entre paliers de trépan

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2842758A Division CA2842758A1 (fr) 2010-01-12 2011-02-18 Reduction de pression de contact entre paliers de trepan

Publications (1)

Publication Number Publication Date
CA2787038A1 true CA2787038A1 (fr) 2011-07-21

Family

ID=46797305

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2787038A Abandoned CA2787038A1 (fr) 2010-01-12 2011-02-18 Reduction de pression de contact entre paliers de trepan

Country Status (1)

Country Link
CA (1) CA2787038A1 (fr)

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued

Effective date: 20160817