Patent ID: 11951443
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Chemical engineering (Chemistry)
Classification: CPC B  C  E | IPC B  C  E

Claim 12:
13. A method for concentration and extraction of gas field chemicals, comprising:
collecting produced water from a gas oil separation plant;
treating the produced water in a water oil separation plant to remove oil;
receiving a feed solution passed through a three-phase separator and a filter, the feed solution comprising a gas field chemical and water;
using the treated produced water as a draw solution, concentrating and absorbing water from the feed solution using a forward osmosis chamber, thereby producing a concentrated feed solution containing the gas field chemical and a diluted draw solution;
extracting the concentrated feed solution containing the gas field chemical;
shipping the concentrated feed solution containing the gas field chemical offshore;
storing the concentrated feed solution containing the gas field chemical in a storage unit;
mixing the concentrated feed solution containing the gas field chemical with one or more additional chemicals; and
injecting the mixture into a gas well.