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Featured researches published by John W. Harrell.


Archive | 1972

METHOD AND APPARATUS FOR SURFACE-TO-DOWNHOLE COMMUNICATION

John W. Harrell; Bobbie J. Patton; James H. Sexton


Archive | 1976

Automatically controlled desurging system

Bobbie J. Patton; John W. Harrell


Archive | 1974

DC/AC motor drive for a downhole acoustic transmitter in a logging-while-drilling system

John W. Harrell; Wallace B. Allen


Archive | 1977

Remote sensing of hydrocarbon gas seeps utilizing microwave energy

Luke S. Gournay; John W. Harrell; Charles L. Dennis


Archive | 1973

LOGGING-WHILE-DRILLING ENCODER

James H. Sexton; Bobbie J. Patton; John W. Harrell


Archive | 1972

Method and apparatus for controlling the downhole acoustic transmitter of a logging-while-drilling system

John W. Harrell; James H. Sexton


Archive | 1974

Automatic bit synchronization method and apparatus for a logging-while-drilling receiver

James H. Sexton; Bobbie J. Patton; John W. Harrell


Archive | 1980

Logging system depth recorder

Charles L. Dennis; John W. Harrell


Archive | 1977

Method for selecting a demulsifier for breaking a water-in-oil emulsion

Wallace B. Allen; John W. Harrell; William W. Webster


Archive | 1983

Two receiver noise loggers

John W. Harrell

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