Patent · US Active

Electric tong with onboard hydraulic power unit

US12366127B2 · kind B2 · utility

0Cited by

29References

13Claims

0Family size

Assignee

WEATHERFORD TECHNOLOGY HOLDINGS, LLC · US

Inventors

Frank Wern · Hannover, DE
Bjoern Thiemann · Burgwedel, DE
Thomas Kotschy · Burgdorf, DE
Michael Wiedecke · Salzhemmendorf, DE

Key dates

Filing date	Sep 28, 2020
Grant date	Jul 22, 2025
Priority date	—
Expiry date	Jul 5, 2043

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B19/163
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A method and apparatus for local hydraulic power generation on an electric tong, including a power tong for spinning tubulars; a first electric motor functionally connected to the power tong; a plurality of hydraulic power consumers including a backup tong for clamping a tubular string; a second electric motor functionally connected to the plurality of hydraulic power consumers; electronics to drive the first electric motor and the second electric motor; and a switchbox providing at least two configurations of the system. A method includes arranging a tong system in a hydraulic power configuration; supplying hydraulic power with an onboard electric motor to at least one of a plurality of hydraulic power consumers to position a tubular for make-up; arranging the tong system in a rotary drive configuration; supplying at least one of torque and rotation with the onboard electric motor to a power tong.

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