SYSTEM AND METHOD FOR ISOLATING MULTIPLE WELLBORE INTERVALS, AND A WELLBORE ISOLATION TOOL

A system and method for selective isolation of multiple wellbore intervals that can include an isolation mandrel interconnected in a tubing string, where the isolation mandrel includes an entry bore, a transition chamber, and an exit bore, the transition chamber being positioned between the entry an...

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Bibliographic Details
Main Authors Keerthivasan, Vijay Kumar, Sim, Nicholas Kok Jun, Wong, Daniel Lorng Yon
Format Patent
LanguageEnglish
Published 11.09.2023
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 system and method for selective isolation of multiple wellbore intervals that can include an isolation mandrel interconnected in a tubing string, where the isolation mandrel includes an entry bore, a transition chamber, and an exit bore, the transition chamber being positioned between the entry and exit bores, and the transition chamber being radially enlarged relative to the entry and exit bores. An isolation device, with a predetermined length, is displaced through the tubing string to the isolation mandrel, where the length of the isolation device relative to a length of the isolation mandrel can determine if the isolation device passes through the isolation mandrel or lands in the isolation mandrel.
Bibliography:Application Number: NO20160001784