caa a22 4500 606226311 CHVBK 20210128101152.0 cr unu---uuuuu 210128e20151101xx s 000 0 eng 10.1007/s10553-015-0637-2 doi (NATIONALLICENCE)springer-10.1007/s10553-015-0637-2 Wang Lanjie College of Chemistry and Environmental Engineering, Yangtze University, JingZhou, China aut Preparation and Application of Viscosifier for Environmentally Friendly Oil-Based Drilling Fluid [Elektronische Daten] [Lanjie Wang] There has been much research worldwide on viscosifiers for water-based drilling fluid but research on viscosifiers for oil-based drilling fluid is still in the exploratory stage so that an effective viscosifier for oil-based drilling fluid is lacking. An environmentally friendly viscosifier, KLD-1, for oil-based drilling fluid was developed by reverse emulsion polymerization based on the reaction of non-ionic, anionic, and water-soluble monomers in oil solution. KLD-1 viscosifier was effective at increasing the viscosity and shear stress, resisting temperature, and reducing the biological toxicity and preparation cost (by ~12%). It was used successfully in the Fuxin 2 coal field gas well. Springer Science+Business Media New York, 2015 oil-based drilling fluid nationallicence environmentally friendly viscosifier nationallicence viscosity and shear stress increase nationallicence environmental protection nationallicence Chemistry and Technology of Fuels and Oils Springer US; http://www.springer-ny.com 51/5(2015-11-01), 539-544 0009-3092 51:5<539 2015 51 10553 https://doi.org/10.1007/s10553-015-0637-2 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10553-015-0637-2 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Wang Lanjie College of Chemistry and Environmental Engineering, Yangtze University, JingZhou, China aut NATIONALLICENCE 773 0- Chemistry and Technology of Fuels and Oils Springer US; http://www.springer-ny.com 51/5(2015-11-01), 539-544 0009-3092 51:5<539 2015 51 10553