Patent · US Active

High efficiency drilling and tripping system

US10570677B2 · kind B2 · utility

3Cited by

11References

65Claims

0Family size

Assignee

Warrior Rig Technologies Limited · CA

Inventors

Allan Stewart Richardson · Diemelstraße, US
Peter Ernest James Root · Calgary, CA

Key dates

Filing date	Jun 10, 2016
Grant date	Feb 25, 2020
Priority date	—
Expiry date	Nov 3, 2036

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B3/022
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

Apparatus for use in subsurface drilling permits coupling and uncoupling of drill string sections while continuously moving the drill string. Tripping times can be reduced while maintaining low speeds of the drill string. In one embodiment coupling units operable to make or break couplings between drill string sections are arranged to circulate around a closed path. Each of the coupling units includes an elevator. Drill string sections may be passed off to a pipe handling system on a back side of the apparatus.

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