A method of filtering fluid for injection into an injection well comprises detecting a fluid pressure in a conduit upstream of an actuator valve, verifying that the fluid pressure is within an operating pressure range, opening an actuator valve based on the verifying, receiving a fluid having suspen
A method of filtering fluid for injection into an injection well comprises detecting a fluid pressure in a conduit upstream of an actuator valve, verifying that the fluid pressure is within an operating pressure range, opening an actuator valve based on the verifying, receiving a fluid having suspended solids within a filter assembly in response to opening the actuator valve, actuating a pump in fluid communication with the filter assembly based on receiving the fluid within the filter assembly, and separating at least a portion of the suspended solids in the fluid within the filter assembly.
대표청구항▼
1. A method of filtering fluid for injection into an injection well, the method comprising: detecting a fluid pressure of a fluid in a conduit upstream of an actuator valve, wherein the fluid is contained in a vessel;verifying that the fluid pressure is within an operating pressure range;opening the
1. A method of filtering fluid for injection into an injection well, the method comprising: detecting a fluid pressure of a fluid in a conduit upstream of an actuator valve, wherein the fluid is contained in a vessel;verifying that the fluid pressure is within an operating pressure range;opening the actuator valve based on the verifying;receiving a fluid within a filter assembly in response to opening the actuator valve, wherein the fluid comprises suspended solids;opening a vessel vent in the vessel comprising the fluid;transferring the fluid from the vessel to the conduit in response to opening the vessel vent;actuating a pump in fluid communication with the filter assembly based on receiving the fluid within the filter assembly; andseparating at least a portion of the suspended solids in the fluid within the filter assembly. 2. The method of claim 1, wherein the fluid in the conduit is at a hydrostatic pressure based on the fluid in the vessel. 3. The method of claim 1, wherein the fluid comprises an aqueous fluid, a hydrocarbon fluid, and the suspended solids. 4. The method of claim 1, wherein the pump comprises a screw pump. 5. The method of claim 1, further comprising: pumping the fluid out of the filter assembly during the separating of at least the portion of the suspended solids; andincreasing a viscosity of the fluid by less than about 50% as the fluid passes through the pump. 6. The method of claim 3, further comprising: ceasing separation of the suspended solids from the fluid;washing at least the portion of the separated suspended solids from the filter assembly into a solids collection vessel, wherein at least a portion of the aqueous fluid and the hydrocarbon fluid pass into the solids collection vessel with the separated suspended solids;separating the aqueous fluid and the hydrocarbon fluid from the portion of the solids in the solids collection vessel; andrecycling at least the hydrocarbon fluid from the solids collection vessel to an inlet of the filter assembly. 7. The method of claim 6, further comprising: detecting a fluid level in the filter assembly during the separating; anddetermining that the detected fluid level falls below a lower level threshold, wherein washing at least the portion of the separated solids from the filter assembly occurs in response to determining that the detected fluid level falls below the lower level threshold. 8. The method of claim 6, further comprising: detecting a fluid flow rate through the filter assembly during the separating; anddetermining that the fluid flow rate falls below a low flow threshold, wherein washing at least the portion of the separated solids from the filter assembly occurs in response to determining that the detected fluid flow rate falls below the low flow threshold. 9. The method of claim 1, wherein receiving the fluid comprises receiving the fluid under hydrostatic pressure only. 10. The method of claim 1, where at least a portion of the filter assembly is at a pressure below atmospheric pressure during the separating. 11. The method of claim 1, further comprising: detecting a low pressure condition within the filter assembly, wherein the low pressure condition comprises a pressure below a low pressure threshold, wherein the low pressure threshold is below atmospheric pressure;opening a release valve in fluid communication with the filter assembly; andrelieving the low pressure condition in response to opening the release valve. 12. The method of claim 11, wherein the release valve comprises a safety backup valve. 13. The method of claim 11, further comprising: turning the pump off in response to detecting the low pressure condition.
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