Water recovery system SAGD system utilizing a flash drum
Assignee1nSite Technologies Ltd.
InventorKenneth James
Life of this patent
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Abstract
A water recovery process for a steam assisted gravity drainage system for a heavy oil recovery facility, the process comprising a flash drum and a flash drum heat exchanger/condenser, wherein the water recovery process receives hot water produced by a facility at a temperature above the water atmospheric boiling point and cools it to a temperature below the water atmospheric boiling point before transferring it to the remaining section of the water recovery process.
Claims18
A water recovery process for SAGD (Steam Assisted Gravity Drainage) system for a heavy oil recovery facility, the process comprising:
- providing a flash drum and a flash drum heat exchanger/condenser;
- separating oil from water;
- receiving in the flash drum hot water produced after the step of separating oil from water, the hot water being at a temperature above the water atmospheric boiling point;
- cooling the hot water in the flash drum and the flash drum heat exchanger to a temperature below the water atmospheric boiling point;
- and
- transferring the cooled water to a remaining section of the water recovery process.
A water recovery process comprising:
- providing a flash drum, a flash drum heat exchanger/condenser and a final water treating unit;
- introducing a hot water produced after a separation of oil from water into the flash drum;
- separating the hot water produced into a cooled liquid and a vapour;
- cooling the vapour in the flash drum heat exchanger/condenser;
- mixing the condensed liquids from the heat exchanger with the cooled liquid, from the flash drum heat exchanger/condenser forming a mixture;
- transferring this mixture into the final water treating unit,
- removing impurities from the water;
- producing a cleaned water;
- transferring the cleaned water to a remainder of the water recovery process or to atmospheric tanks for storage.
Dependencies are inferred from the claim text.