In the Caspian Sea, an exceptionally important fishery resource is the sturgeon from which caviar is produced. To protect the sturgeon, regulations on wastewater flowing into the Caspian Sea have become very tight. Oilfield produced water must also comply with the wastewater regulations. As a result, oil removal performance requirements have increased to such a level that conventional treatment systems appear to be inadequate. Moreover, offshore oilfields require compact equipment to treat oilfield water in the limited available space on the oil drilling platform.
Sumitomo Electric Fine Polymer, Inc. has developed an oilfield produced water treatment system in collaboration with a water treatment engineering company and field tested it in the Middle East. By combining the pretreatment technology of the water treatment engineering company and our POREFLON Membrane Module-based filtration, we have successfully completed tests, removing oil contained in treatment water to below 1 mg/L. Since the test results and the system's compact design were highly evaluated, our membrane was adopted for oilfield water treatment at Caspian offshore oilfields in Turkmen territory. We are proud of our contribution to environmental conservation in the Caspian Sea.
At Sumitomo Electric Fine Polymer, Inc. we also conduct field tests on oilfield water treatment in China and Southeast Asia incorporating various pretreatment technologies. We intend to make optimal use of the POREFLON Membrane Module because it exhibits stable performance in the treatment of oil-contaminated wastewater to preserve the environment surrounding oil drilling sites.