Brine-based drilling fluids for ballast tank storage
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United States of America Patent
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-
Nov 13, 2001
Grant Date -
N/A
app pub date -
Apr 19, 1999
filing date -
Sep 4, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Drilling fluids are stored in the ballast compartments of drilling vessels to reduce the dependency of a drilling operation on the supply of drilling fluids from work boats. The composition of the brine-based drilling fluid stored in the ballast compartment is designed to provide a biostatic environment and a density appropriate for the environment in which the well is to be drilled.
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