METHOD FOR CREATING SECONDARY SIDETRACKS IN A WELL SYSTEM

A method is disclosed for creating one or more secondary sidetracks in an oi l and/or gas well assembly which comprises a primary wellbore (2) and one or more primary sidetracks (6) so that a root-like multilateral well structure is created. The method makes use of an expandable well liner (9) in th...

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Bibliographic Details
Main Authors VAN BUREN, MARKUS ANTONIUS, SUREWAARD, JOHANNES HENRICUS GERARDUS
Format Patent
LanguageEnglish
French
Published 10.08.2000
Edition7
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 is disclosed for creating one or more secondary sidetracks in an oi l and/or gas well assembly which comprises a primary wellbore (2) and one or more primary sidetracks (6) so that a root-like multilateral well structure is created. The method makes use of an expandable well liner (9) in the primary sidetracks (6) so as to create a liner having a sufficient internal width to allow sidetracking equipment to be inserted and operated in the primary sidetrack to drill and complete the secondary sidetracks (7).
Bibliography:Application Number: CA20002357719