3.3. Water Processing System for Offshore Oilfields
The water processing system for offshore oil fields mainly involves the water treatment system used for seawater injection and the oily water treatment system; in addition, there are shallow groundwater treatment systems for water injection and domestic water, and secondary sewage treatment systems for collecting the deck wash water and rainwater.
3.3.1. Water Treatment System for Water Injection
Offshore oilfield injection water mainly has three sources: seawater, which is the major source for offshore oil fields; reservoir water, which is the production associated with gas and oil; and the other shallow water at the bottom of shallow portions of the sea. Of course, the above three water sources ...