Inventor

ESTES ROBERT A

US21 patents

⚠️ This page may combine multiple inventors who share the name “ESTES ROBERT A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ESTES ROBERT A

BAKER HUGHES INC

Measurement-while-drilling assembly using gyroscopic devices and methods of bias removal

Measurement-while-drilling assembly using gyroscopic devices and methods of bias removal

Measurement-while-drilling assembly using real-time toolface oriented measurements

Measurement-while-drilling assembly using real-time toolface oriented measurements

Use of MWD assembly for multiple-well drilling

Lockable motor drive

Downhole navigation and detection system

Measurement-while-drilling assembly using real-time toolface oriented measurements

Gyroscopic steering tool using only a two-axis rate gyroscope and deriving the missing third axis

Gyroscopic steering tool using only a two-axis rate gyroscope and deriving the missing third axis

Magnetometers for measurement-while-drilling applications

ESTES ROBERT A

Real-time, limited orientation sensor auto-calibration

Methods for drilling multiple parallel wells with passive magnetic ranging

Extending the range of a MEMS gyroscope using eccentric accelerometers

Tripping indicator for MWD systems

Measurement while drilling spontaneous potential indicator using differential magnetometers

KRUSPE THOMAS

Downhole closed loop drilling system with depth measurement

GEORGI DANIEL T

Rotatable orientation independent gravity sensor and methods for correcting systematic errors

CAIRNS PAUL G

Apparatus and methods for determining parameters downhole using gravity-affected sensor

HANAK FRANCIS CHAD

Passive magnetic ranging for SAGD and relief wells via a linearized trailing window kalman filter

IRELAND KELLY D

Apparatus and methods for oriented-fracturing of formations