Sulfonated asphalt in TOPLUS synthesis and process: FT-1 is a kind of anionic polymer which is chemically treated by sulfonation, emulsification, etc., and its molecular structure is a C-C one, a C-S-bond, a bond. Can be relatively strong, so the temperature resistance is higher.
Uses: Since the sulfonated bitumen contains a sulfonic acid group, the hydration is very strong. When adsorbed on the shale interface, it can prevent the hydration and dispersion of the shale particles from collapsing. At the same time, the water-insoluble part can fill the pore throat and crack to seal the effect, and can cover the shale interface to improve the quality of the mud cake. The sulfonated asphalt also plays a role in lubricating and reducing the high temperature and high pressure fluid loss in the drilling fluid. 1 is a multifunctional organic drilling fluid treatment agent for plugging, anti-collapse, lubrication, drag reduction and inhibition. 2, lubrication and drag reduction, reduce the lifting capacity of the drill and torque to extend the life of the drill bit, prevent and release the stuck drill; 3, form a thin and tough mud cake to strengthen the well wall. Control high temperature water loss; 4, control the high temperature shear strength of the mud; 5, can be used in combination with other mud treatment agents. The recommended amount is 1-6%.
