CA2596318CCA2596318ACA2596318ACA2596318CCA 2596318 CCA2596318 CCA 2596318CCA 2596318 ACA2596318 ACA 2596318ACA 2596318 ACA2596318 ACA 2596318ACA 2596318 CCA2596318 CCA 2596318C
Authority
CA
Canada
Prior art keywords
members
drilling
bore
fluid
wellbore
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.)
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.)
Weatherford Technology Holdings LLC
Original Assignee
Weatherford Lamb 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 GB0018877Aexternal-prioritypatent/GB2365463B/en
Application filed by Weatherford Lamb IncfiledCriticalWeatherford Lamb Inc
Publication of CA2596318A1publicationCriticalpatent/CA2596318A1/fr
Application grantedgrantedCritical
Publication of CA2596318CpublicationCriticalpatent/CA2596318C/fr