Schlumberger Technology Corporation

Dennis Patrick Chesnutt

Xiaoge Gan

Venkatesh Karuppiah

Ke Chen

Andrew Mueller

Jonathan D Marshall

Geoffrey Charles Downton

David C Hoyle

Edward George Parkin

Nalin Weerasinghe

A downhole tool has a directional pad that contacts a wellbore wall at a pad contact location and a drill bit with at least one active cutting element that contacts the wellbore wall at a cutting element contact location. A contact distance between the pad contact location and the cutting element contact location being 3 in. (7.6 cm) or less.

Downhole directional drilling tool

A downhole steering system includes a substantially tubular housing, a shaft positioned within the substantially tubular housing, a first bearing and a second bearing, the first and second bearings being configured to support rotation of the shaft relative to the housing. The first bearing, the second bearing, the shaft, and the housing at least partially define a chamber therebetween. The system also includes at least one structure positioned axially between the first and second bearing and being configured to extend from an exterior of the housing in response to pressure communicated to the chamber.

Downhole steering system and methods

Growing community of inventors

Katy, TX, United States of America

Dennis Patrick Chesnutt