USRE42877E1 - Methods and apparatus for wellbore construction and completion - Google Patents

Methods and apparatus for wellbore construction and completion Download PDF

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Publication number
USRE42877E1
USRE42877E1 US12/833,679 US83367910A USRE42877E US RE42877 E1 USRE42877 E1 US RE42877E1 US 83367910 A US83367910 A US 83367910A US RE42877 E USRE42877 E US RE42877E
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United States
Prior art keywords
drill string
borehole
fluid
wellbore
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
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US12/833,679
Inventor
Brent J. Lirette
David J. Brunnert
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Weatherford Technology Holdings LLC
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Weatherford Lamb Inc
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Publication date
Priority to US44604603P priority Critical
Priority to US10/775,048 priority patent/US7311148B2/en
Application filed by Weatherford Lamb Inc filed Critical Weatherford Lamb Inc
Priority to US12/833,679 priority patent/USRE42877E1/en
Application granted granted Critical
Publication of USRE42877E1 publication Critical patent/USRE42877E1/en
Assigned to WEATHERFORD TECHNOLOGY HOLDINGS, LLC reassignment WEATHERFORD TECHNOLOGY HOLDINGS, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WEATHERFORD/LAMB, INC.
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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