Charles A. Butterfield

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Archive | 2002

Method, apparatus and system for selective release of cementing plugs

Charles A. Butterfield

Archive | 1998

Apparatus and method for generating electricity from energy in a flowing stream of fluid

Ronnie J. Buchanan; Charles A. Butterfield

Archive | 1999

Hydraulic set liner hanger setting mechanism and method

Henry E. Rogers; Charles A. Butterfield; David D. Szarka

Archive | 2000

Method and multi-purpose apparatus for control of fluid in wellbore casing

Charles A. Butterfield; Robert A. Bates; David F. Laurel; Samuel P. Hawkins; Burney J. Latiolais; Keith T. Lutgring

Archive | 1997

Plug release indication method

David F. Laurel; Charles A. Butterfield; Stephen E. Tilghman

Archive | 2003

Method and apparatus for selective release of cementing plugs downhole

Charles A. Butterfield

Archive | 2004

Anti-rotation method and apparatus for limiting rotation of cementing plugs

Charles A. Butterfield; Henry E. Rogers; Seth R. Moore; Donald M. Garrett; Ronald J. Holubec

Archive | 2002

Anti-rotation apparatus for limiting rotation of cementing plugs

Charles A. Butterfield; Henry E. Rogers; Earl D. Webb; Michael D. Stevens

SPE Asia Pacific Oil and Gas Conference and Exhibition | 2000

Novel Technique for Openhole Abandonment Saves Rig Time-A Case History

King Kwee Chong; Charles A. Butterfield; Russell P. Conwell

Archive | 2003

Anti-rotation device for cementing plugs

Anthony M. Badalamenti; Charles A. Butterfield; Donald M. Garrett; Steven L. Holden; Ronald J. Holubec; Seth R. Moore; Henry E. Rogers; Michael D. Stevens; Earl D. Webb; John C. Zimmerman

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