Surfactants, catalog, petroleum industry standard, Chinese standards
SY/T 5091 Sulphonated tannin for drilling fluid
SY/T 5092 Sufonated lignite for drilling fluid(SMC)
SY/T 5094 Sulfonated methyl pheuo-formaldehyde used in drilling fluids
SY/T 5694 Acid viscosifier CT1-6
SY/T 5695 Zwitterionic polymer viscosity reducer for drilling fluid XY27
SY/T 5696 Zwitterionic polymer strong encapsulating agent for drilling fluid FA367
SY/T 5756 SL-2 series of corrosion and scale inhibitor
SY/T 5763 Flocculant JX-Ⅱ
SY/T 5946 Potassium polyacrylamide for drilling fluid