Drilling fluid
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United States of America Patent
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Jun 25, 2002
Grant Date -
N/A
app pub date -
Mar 10, 2000
filing date -
Mar 11, 1999
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A fluid suitable for use as the continuous phase in a drilling fluid is disclosed. The fluid is prepared by the sequential hydrotreating, hydroisomerization and hydrogenation of a crude oil feedstock. The fluid has good low temperature properties, including pour point and accordingly is useable in cold environments. A method of producing the fluid is also disclosed. The fluid may also be used as an additive to a drilling fluid having a continuous aqueous phase wherein it may act as, for example, a rate of penetration enhancer or a spotting fluid. The fluid may also be used as an additive to known drilling fluids such as internal olefins.
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