Current situation of drilling waste treatment and equipment development trend in foreign countries

Now, all major oil countries consider the development of drilling waste treatment technologies quite significant, and have had a head start in relevant treatment devices and equipment. Countries like U.S., Canada, France, etc. adopt four-stage solids control equipment in collecting drill cuttings and sludge, and later solidify or transport the subsequent waste. Due to its complex composition, strong stability, various birthplaces and different quality of well drilling waste, one fixed device and process cannot work effectively to manage all waste waters from different oilfields. Besides, conventional devices and techniques highly rely on chemical agents and cost much to manage different wastewater featured with high suspension, high COD, high salt, high chromaticity, etc. Those play a dete

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