Patent · US Active

Apparatus and method for drilling a wellbore, setting a liner and cementing the wellbore during a single trip

US9004195B2 · kind B2 · utility

31Cited by

16References

26Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

Thorsten Regener · Celle, DE
Ingo Roders · Seelze, DE
Carl C. Clemmensen · Bergen, NO
Sascha Schwartze · Sandnes, NO
Trond R. Skar · Sandnes, NO
Tore Sorheim · Sola, NO
Morten Eidem · Trondheim, NO
Gaute Grindhaug · Stavanger, NO

Key dates

Filing date	Aug 22, 2012
Grant date	Apr 14, 2015
Priority date	—
Expiry date	Jun 22, 2033

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B33/14
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A method of forming a wellbore is disclosed. An inner string and an outer string are conveyed downhole. The inner string is attached to the outer string at a first location and the wellbore is formed. The inner stringy is attached to the outer string at a second location us hole of the first location and an annulus between the outer string and the wellbore is cemented without retrieving the inner string from the wellbore.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.