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Use of flocculants in dewatering of drilling muds.
Advances in filtration and separation technology, pollution control technology for oil and gas drilling and production operations, third regional meeting of the American Filtration Society, October 29-30, 1990, Baton Rouge, Louisiana. Houston, TX; Gulf Publishing Company, 1991 Jan; 3:43-51
The U.S. Bureau of Mines Tuscaloosa Research Center is presently investigating techniques to improve the dewatering of fine-particle slurries and recover water lost in the waste slurries. As part of the investigation, this study was conducted to evaluate the dewatering of drilling muds using salts and various flocculating agents. A high-molecular-weight polyacrylamide was found to be the most effective polymer for the water-base drilling muds, while the oil-base mud was dewatered with nonionic polyethylene oxide (peo) and a high-molecular-weight nonionic polyacrylamide. Even at low polymer dosages the oil-base drilling mud was dewatered to 72 pct solids and the water-base mud was dewatered from 0.3 to 62 pct solids. These dewatered muds were in the form of a consolidated, coherent mass that could be easily handled.
OP; Conference/Symposia Proceedings
Advances in filtration and separation technology, pollution control technology for oil and gas drilling and production operations, third regional meeting of the American Filtration Society, October 29-30, 1990, Baton Rouge, Louisiana
Page last reviewed: March 11, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division