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Robert T. Evans

Halliburton

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Publication

Featured researches published by Robert T. Evans.

Archive | 1985

Retrievable straddle packer

Robert T. Evans

Archive | 1977

Reclosable circulation valve for use in oil well testing

Robert T. Evans; David L. Farley

Archive | 1975

Pressure operated isolation valve for use in a well testing apparatus and its method of operation

David L. Farley; Robert T. Evans

Archive | 1979

Access valve for drill stem testing

Robert T. Evans; Richard L. Giroux

Archive | 1985

Hydraulically set and released bridge plug

Burchus Q. Barrington; Robert T. Evans; Bernard L. Hackney

Archive | 1962

Wire line setting and releasing devices

Robert T. Evans

Archive | 1964

Plural well packers

Robert T. Evans

Archive | 1985

Annulus pressure operated ratchet device

Theron A. Scott; Robert T. Evans

Archive | 1968

Overshot for retrievable bridge plug

Robert T. Evans

Archive | 1976

Valve for well testing and sampling string - has closure bias increased by annulus pressure and is operable by increasing annulus press

David L. Farley; Burchus Q. Barrington; Robert T. Evans

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David L. Farley

Halliburton

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Burchus Q. Barrington

Halliburton

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Bernard L. Hackney

Halliburton

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Richard L. Giroux

Halliburton

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Theron A. Scott

Halliburton

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