APPARATUS AND METHODS FOR DRILLING A WELLBORE USING CASING

Apparatus and methods for drilling with casing. In a first embodiment, a method for drilling with two concentric casing is disclosed. In a second embodiment, methods and apparatus for deflecting casing using a diverter apparatus are disclosed. In another embodiment, the apparatus comprises a motor o...

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Bibliographische Detailangaben
Hauptverfasser:	MCKAY, DAVID, ALKHATIB, SAMIR, ODELL, ALBERT C, WARDLEY, MIKE, SWARR, JAMES C, BRUNNERT, DAVID J, JACKSON, RAYMOND H, GIROUX, RICHARD L, GALLOWAY, GREGORY G, NAZZAL, GREGORY R, BEASLEY, WILLIAM M, LIRETTE, BRENT J, TUONG, THANG LE, TERRY, JIM
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	Apparatus and methods for drilling with casing. In a first embodiment, a method for drilling with two concentric casing is disclosed. In a second embodiment, methods and apparatus for deflecting casing using a diverter apparatus are disclosed. In another embodiment, the apparatus comprises a motor operating system disposed in a motor system housing, a shaft operatively connected to the motor operating system, the shaft having a passageway, and a divert assembly disposed to direct fluid flow selectively to the motor operating system and the passageway in the shaft. In another aspect, methods and apparatus for directionally drilling a casing into the formation are disclosed. Methods and apparatus for measuring the trajectory of a wellbore while directionally drilling a casing into the formation are also described.