Synthesis of dioctadecyl fumarate-vinyl acetate copolymer and its effect on pour point reduction and viscosity reduction;

Research on viscosity reduction by electric heating technology in ultra-deep flowing well in Tahe Oilfield;

Experimental study of viscosity reduction on crude oil of Shengli shallow sea oil field with ultrasonic technique;

Demulsification and visbreaking of dendrimers on crude oil;

Study on the technology of catalytic cracking and visbreaking in heavy crude gathering;

By the experiment of emulsifying and deviscousing to viscous oil by bacteria,we have selected and fostered the high and extensive efficiency surfactant producing bacteria(WS-SPB);have analyzed the factors which affect the growing of WS-SPB,initially obtained its best conditions of growth;have run the experimental study of emulsifying and visbreaking viscous.

In-house experiment shows that this viscosity reducer has good properties of emulsifying viscosity reducing (the reducing rate not less than 99%), automatic demulsificatio.

The lab experiment shows that improving the flow velocity of oil-water mixture can realize viscosity reducing.

Through physical analysis of crude oil in Suizhong 36-1 Oilfield, initial selection is made on polymer viscosity reducing agent monomer accordantly and a series of viscosity reducing agents are synthesized, through result selection and research of all the synthesized viscosity reducing agents.

Liquidwhistle acousticgenerator is a mechanical hydrodynamic one, which is fit for exciting sonic wave in liquid with wide applied prospect on scale control, oil displacement, paraffin control, viscosity break and other aspects in oilfield.

Due to the problems existent in rod pumping caused by high-viscosity and high-density crude oil, the studies have been done on heavy oil pump, optimization design, accident diagnosis and hole viscosity break methods etc to ensure the normal operation of rod pumping.