Drill cuttings disposal method and system
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United States of America Patent
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Jul 14, 1992
Issued Date -
N/A
app pub date -
Dec 16, 1991
filing date -
Aug 17, 1990
priority date (Note) -
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status (Latency Note)
Importance
Abstract
Drill cuttings are disposed of by injection into a subsurface formation by way of an annular space formed in a wellbore. The cuttings are removed from the drilling fluid, conveyed to a shearing and grinding system that converts the cuttings into a viscous slurry with the addition of water. The system comprises a receiving tank and a centrifugal pump for recirculating the mixture of cuttings and water (seawater) between the pump and the receiving tank. A discharge conduit is connected to the pump for moving the viscous slurry to an injection pump for high pressure injection into the formation.
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