Apparatus and method for centralizing pipe in a wellbore
作者： Dennis R. Wilson , Wilber R. Moyer , Larry K. Moran , Jack H. Cole
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摘要: A system for centralizing casing pipe in a wellbore includes lateral pistons the side wall of string which are movable by forces applied to their inner end, from retracted position within maximum exterior profile predetermined extended will move toward central borehole. Various well operations can be performed using addition function.
google.de 参考文章(24)
Gerson H Brodie, Means for centering tubular well strings ,(1939)
Zandmer Solis Myron, Apparatus for providing ducts between borehole wall and casing ,(1953)
Frederick A. Fonner, Method and apparatus for well completion ,(1977)
Caldwell Lyle, Apparatus for providing ducts through casing in a well ,(1960)
Roscoe C Lister, Method and apparatus for completing oil wells and the like ,(1956)
John J Lane, Hydraulic anchor tool ,(1952)
Joseph Jacobs Albert, Myron Zandmer Solis, Methods and apparatus for sealing a bore hole casing ,(1952)
Zandmer Solis Myron, Sand screen for oil wells ,(1965)
Zandmer Solis Myron, Duct-forming devices ,(1954)
John V. Salerni, Edward C. Spatz, John B. Weirich, Elmer R. Peterson, Joseph F. Donovan, Method and apparatus for completing a non-vertical portion of a subterranean well bore ,(1988)