▎ 摘　　要

NOVELTY - High temperature resistant packer sealing rubber cylinder comprises 18-32 pts. wt. 100H type tetrapropylene fluorine rubber, 60-80 pts. wt. 100S type tetrapropylene fluoride rubber, 18-32 pts. wt. N990 carbon black, 10-20 pts. wt. N774 carbon black, 0.5-2 pts. wt. calcium stearate, 10-17 pts. wt. 70% triallylisocyanurate, 2-7 pts. wt. 60% type double-25, and 7-14 pts. wt. Graphene containing germanium dioxide. USE - The high temperature resistant packer sealing rubber cylinder is useful in oil field, important underground tool in gas field drilling technology for sealing oil pipe and gas well sleeve pipe annular space. ADVANTAGE - The sealing rubber cylinder has high temperature resistance, high pressure resistance, and improved preparation technique and quality, and can be applied to oil well with depth of ≯ 8000 m. The method is convenient for the premixing of carbon black and rubber and place material in the banburying to the internal mixer in stages, improves utilization rate of material, realizes more complete feeding, reduces material possible proportion imbalance problem, can realize primary premix of the ban-burying material, and realizes processing of the residual/retained material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing high temperature resistant packer sealing rubber cylinder. DESCRIPTION OF DRAWING(S) - The drawing shows a flow chart illustrating the method for preparing high temperature resistant packer sealing rubber cylinder (Drawing includes non-English language text). 12Transverse motor