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Drilling Waste Treating by Non-landing Technology

2 Drilling waste treating non-landing target processing technology theory

2.1 Non-landing technology theory
The basic theory of “drilling waste treating non-landing target processing technology” is attenuation, flocculation and separation into three parts drilling cuttings, mud clay and fluid. That’s to say, through watering and flocculation separation and chemical reaction processing to let the drilling cuttings and mud clay reaching to discharge standard. The harmful elements and chloride ion is analyzed into water, and then formed into mud clay by vac-sorb or extrusion as well as realized useful fluid recovery. The whole craft contains three processing units.
The first processing unit: complete collecting drilling waste mud and fluid. First separating the rocks and cuttings from the collected mud thorough sand-water separation-washing-agitating equipment for agitating washing and spiral separation to release or reduce the influence of such kinds of material to subsequent processing and keep the mud in good mobility. The mud after processing is pumped into the sludge storage agitator tank with certain treating agent. After agitating and mixing, the waste mud is pumped into the second processing unit.
The second processing unit: mud and water separation. By adopting chemical treatment and multi agitating and washing to separate mud and fluid, and make the pollution material in the mud go into fluid. If there is oil pollutant in the waste fluid, it is necessary to treat by degreasing unit to recover the grease. The discharged solid can be pilled up or for paving road. The separated fluid goes into water tank for collection, and then discharged into the third processing unit.
The third processing unit: waste water processing. The fluid is with much suspended solids after centrifugal separation. It can adopt flotation sedimentation and filtration system to move it out. And then goes into reverse osmosis system for concentration treatment. The treated waste water goes into recovery water tank and is pumped into self processing system for recycling or into the recycling mud. The concentration fluid can be reused by adopting evaporative crystallization processing technology for industrial production.

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