Patent · US Active

Hydraulic tools, drilling systems including hydraulic tools, and methods of using hydraulic tools

US11261666B2 · kind B2 · utility

0Cited by

26References

9Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

Carsten Hohl · Sehnde, DE
Carsten Voss · Heroldsbach, DE

Key dates

Filing date	Jul 14, 2017
Grant date	Mar 1, 2022
Priority date	—
Expiry date	Sep 15, 2039

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B4/02
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A hydraulic tool includes a rotor rotatably disposed within a stator. At least an inner portion of the stator and/or at least an outer portion of the rotor is configured to be installed in a drill string in either of two inverted orientations along a longitudinal axis of the hydraulic tool. The rotor is configured to rotate within the stator in either of the two orientations. A method includes disposing a rotor within a cavity defined by a stator, passing a fluid through the stator to rotate the rotor, and reversing the stator or the rotor. A drilling system includes a fluid source, a hydraulic tool, a drive shaft operatively associated with the rotor of the hydraulic tool, and a drill bit operatively associated with the drive shaft.

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