Oilfield extractive fluid produces a large amount of oil-containing wastewater after three-phase separation, and in order to maintain the power of the formation, it is necessary to treat the extractive wastewater and re-inject it back into the ground. In order to maintain the sustainable exploitation of the oilfield, it is necessary to ensure that the water quality of the reinjected water meets the corresponding standards.
At present, the domestic oilfield water treatment technology is difficult to ensure that the treatment of water quality and stability to meet the relevant indicators of the reinjection water, seriously affecting the sustainable development of the oilfield.
Bidun Company adopts a kind of injection well water physical excitation, three-phase separation pre-separation steady flow water distributor (Patent No.: 2011104310183) and a kind of oil and water automatic separation and recycling device (Patent No.: 2007100205745) 2 patented technology of oil extraction wastewater treatment system process, can effectively ensure the quality of the treatment of the water back to the injection. The process has been well received by the user units for its excellent performance in terms of high precision (able to stably reach the oilfield class A water quality index of reinjection water), short process, low cost (more than 40% lower than the cost of the existing treatment system in the oilfield), and crude oil recovery (more than 90% of the crude oil recovery rate), and so on.
