Overview
With the development of shale oil and gas fields, the output of various waste liquid for difficult treatment operations such as fracturing redischarge fluid, drilling waste fluid, waste acidification waste liquid and well washing waste liquid is gradually increasing. It is important for oil and gas companies to recycle them to achieve zero emissions, which is the primary problem solved by domestic and foreign oil and gas companies.
The oil and gas fields are generally characterized by scattered single well location and low liquid volume, different targets of waste liquid reuse and different water quality standards. In this regard, we need to develop a targeted, modular treatment process and device, timely according to the fracturing, drilling and other operation site requirements, combine different modules to achieve the waste liquid standard reuse. The treatment technology of oilfield fracturing return fluid is mainly treated through physical, chemical, electrochemical, biological or multiple methods.
The reinjection of waste liquid mainly controls the oil content, suspended matter and suspended matter particle size of waste liquid, and meet the relevant requirements of SY5329-2012 Recommended Water Quality Index for Crushed Rock Reservoir; the indexes of water consumption of fracturing fluid in fracturing field; and the indexes of COD, BOD and ammonia nitrogen meet the national secondary standard.
Device composition
The reinjection of waste liquid mainly controls the oil content, suspended matter and suspended matter particle size of waste liquid, and meet the relevant requirements of SY5329-2012 Recommended Water Quality Index for Crushed Rock Reservoir; the indexes of water consumption of fracturing fluid in fracturing field; and the indexes of COD, BOD and ammonia nitrogen meet the national secondary standard.
The treatment system adopts modular combination design, which can adapt to the waste liquid treatment of various systems, and reuse the treated water, so as to achieve the purpose of resource reuse and waste into treasure. According to different sewage quality and treatment standards, develop appropriate technology solutions, targeted to remove pollutants in sewage, the maximum simplification of the process, reduce equipment investment and operation costs.
Main Technical Parameters
Single sled processing volume：1~25t/h
Working pressure ： Low pressure or normal pressure
Running temperature：0~50℃
Outflow index： Reate fracturing fluid or drinking water standards.