Method and apparatus for sealing a well bore and sidetracking a well from the well bore

A method and apparatus for sealing a pilot well and directionally drilling a directional well from the pilot well by the use of a casing including an easily drillable section positioned through a selected zone.

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Bibliographic Details
Main Authors NIMS; DAVID G, STOLTZ; DANIEL S
Format Patent
LanguageEnglish
Published 17.08.1999
Edition6
Subjects
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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Summary:A method and apparatus for sealing a pilot well and directionally drilling a directional well from the pilot well by the use of a casing including an easily drillable section positioned through a selected zone.
Bibliography:Application Number: US19970864491