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US 11,141,683 B2Granted
Gas-tight low gravity separation device
AssigneeRecover Energy Services Inc.
InventorsStan Ross, Matthew Scalley
Life of this patent
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Abstract
A method and apparatus for removing low micron solids from a mixture of recovered oil based drilling fluid and low micron solids and diluent. A gas tight clarifier device that is designed and constructed for this purpose in a gas-tight manor so to ensure vapour cannot escape the separation process, and foreign oxygen cannot enter the process under normal operating conditions.
Claims25
A method of removing low micron solids from recovered oil based drilling fluid comprising:
- mixing the drilling fluid containing low micron solids with a diluent;
- separating the mixture, in a gas tight clarification device, into a liquids phase and a low micron
- solids phase in a laminar flow regime;
- and
- calming the separated liquids phase and the low micron solids phase in the gas tight clarification device to produce a recovered liquids phase and a separated low micron solids slurry, wherein the clarification device is sealed so as to prevent escape of vapors from the mixture into the atmosphere containing oxygen and the introduction of atmospheric oxygen into the mixture or the environment of the mixture being clarified, the clarification device includes a gas tight inlet for the mixture, the clarification device includes a first gas tight outlet for the recovered liquids phase, and the clarification device includes a second gas tight outlet for the separated low micron solids slurry.
2 more elements
Dependencies are inferred from the claim text.