Patent · US Active

Directional control of a rotary steerable drilling assembly using a variable fluid flow pathway

US10006250B2 · kind B2 · utility

0Cited by

1References

18Claims

0Family size

Assignee

Halliburton Energy Services, Inc. · US

Inventors

Daniel Winslow · Spring, US
Neelesh Deolalikar · Houston, US

Key dates

Filing date	Dec 21, 2012
Grant date	Jun 26, 2018
Priority date	—
Expiry date	Jul 10, 2033

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B21/10
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

According to aspects of the present disclosure, systems and methods for controlling the direction of a drilling assembly within a borehole are described herein. An example system may include a housing 201 b (FIG. 2B) and a variable flow fluid pathway 203 (FIG. 2B) within the housing 201b. A fluid-controlled drive mechanism 209 (FIG. 2C) may be in fluid communication with the variable flow fluid pathway 203. Additionally, an offset mandrel 212 may be coupled to an output of the fluid-controlled drive mechanism 209. The offset mandrel 212 may be independently rotatable with respect to the housing 201b. The system may also include a bit shaft 216 pivotably coupled to the housing 201b and coupled to an eccentric receptacle of the offset mandrel 212.

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