Solid Control & Drilling Waste Management Solution

On Sept. 2 nd  of 2009, well YM7-12 was started to drill together with the complete set of drilling waste management  equipment operated, to uninterrupted while drilling processing the waste mud from the solid control system . On Nov. 2 nd  of 2009, the second section drilling finished. The complete system operated for a total time of 57 days, accumulative handling drilling waste mud 3450m³, including bentonite polymer mud 250m³, polymer mud 2225m³, polysulfonate drilling fluid -KC1-polysulfonate unsaturated salt water 975m³. After treatment and mud discharging, the water is 620m³, sand (drilling cuttings>5mm) 170m³, non-harmful mud clay 1150m³. Through monitoring and sample test to the mud clay and discharged water, all material during the whole operation reached to discharging standard. On May 5 th  of 2010, well Ha 702 was conducted a second time pilot test. This well is a three stage structure. The first drilling section is 419.1mm big wellbore, the second drilling section

2 D rilling waste treating non-landing target processing technology  theory 2.1 N on-landing t echnology 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 subs