Drilling fluid treatment process and system
AssigneeSchlumberger Technology Corporation
InventorsClint Falgout, Benjamin Holton, Michael Joling
Life of this patent
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Abstract
Methods and apparatus for treating fluid streams containing solids are described herein. One method includes mixing a fluid stream containing solids, or a material derived from the fluid stream containing solids, with a flocculant agent, a coagulant agent, or both to form a mixture; routing the mixture to a high efficiency separator to yield a solids stream and a liquid stream; and routing the solids stream to an electro-osmotic filter press to form a solid filter cake. The fluid stream can be a water-based stream or a non-aqueous stream.
Claims20
A method of treating a water-based stream containing solids, the method comprising:
- mixing the water-based stream containing solids, or a material derived from the water-based stream containing solids, with a flocculant agent, a coagulant agent, or both to form a mixture;
- routing the mixture to a high efficiency separator to yield a solids stream and a liquid stream;
- and
- routing the solids stream to an electro-osmotic filter press to form a solid filter cake.
A method of treating a fluid stream containing solids, the method comprising:
- mixing the fluid stream containing solids, or a material derived from the fluid stream containing solids, with a flocculant agent, a coagulant agent, or both to form a mixture;
- routing the mixture to a high efficiency separator to yield a solids stream and a liquid stream;
- determining whether the fluid stream containing solids is a water-based stream, determining whether the liquid stream is a water stream, or both;
- and
- where the fluid stream containing solids is a water-based stream, the liquid stream is a water stream, or both, routing the solids stream to an electro-osmotic filter press to form a compressed solid material.
A system for processing drilling fluids comprising:
- a bulk separator containing an effluent;
- a mixing vessel in fluid communication with the bulk separator such that the mixing vessel can receive at least a portion of the effluent and wherein the mixing vessel is configured to receive a mixing agent whereby the effluent and the mixing agent combine to become a mixture;
- a drying module wherein the drying module comprises;
- a high efficiency separator configured to receive at least a portion of the mixture wherein the high efficiency separator separates the mixture into a solid stream and a liquid stream;
- and
- a press mechanism in fluid communication with the high efficiency separator and configured to receive the solid stream, wherein the press mechanism compresses the solid stream into a compressed solid material and a solid-free liquid.
Dependencies are inferred from the claim text.