Patent · US Active

Rotary coil tubing drilling and completion technology

US9062503B2 · kind B2 · utility

3Cited by

11References

18Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventor

Joerg Lehr · Sulingen, DE

Key dates

Filing date	Jul 20, 2011
Grant date	Jun 23, 2015
Priority date	—
Expiry date	Jul 20, 2031

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B17/00
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

An apparatus for performing a drilling operation or a non-drilling wellbore operation may include a string that has a rigid tubular, a connector coupled to the rigid tubular, a non-rigid tubular coupled to the connector; and at least one motor positioned along the string. In some embodiments, a plurality of motors may be positioned along the string to rotate one or both of the non-rigid tubular and a drill bit connected to the string. In some embodiments, the connector may be configured to release the non-rigid tubular from the rigid tubular and thereby leave the non-rigid tubular in the wellbore.

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