Research Of High Temperature Steam Stimulation Wells Temporary Plugging Technology In Fuyu Oilfield

Steam stimulation test in fuyu oilifeld has obtained the very good effect of oil increase，but because of reservoir heterogeneity is serious， steam channeling phenomenon oftenoccurred。 In order to seal steam channeling passage? study on the high temperature steamstimulation Wells temporary plugging technology。 First phenolic resin gel blocking agentformulations to improve, through the polymer type, cross-linking agent and heat stabilizerOptimize concentration determined at100。C can be stable for90days the ratio of eachcomponent. After blocking agent in the phenolic resin solution by adding inorganic particlesand natural ifber particles, after the formation of crosslinked gel particles, not only increasedthe temperature of the blocking agent, but also improve the blocking agent for sealing cracksin intensity。Obtained through the performance evaluation of200。C-250°C in the temporaryblocking agent within the carbonation time was48h-60h°，300C carbonation time6h°; at30Ctemporar。y plugging agent blocking core rate of89.8%, at200C to place three days, coreclosure rate of75%.Application of high temperature temporary blocking agent in11Wells, ifeld test successrate100%. Through for the11test Wells steam channeling passage analysis, high temperaturetemporary blocking agent is injected into dynamic analysis, plugging after steam injectionparameters and plugging after steam stimulation effect analysis, verify the rationality ofsteam channeling channel identiifcation method and temporary plugging agent temperaturetolerance, high temperature and temporary plugging technology is improving roundsstimulation effect, and through the ifeld test and result analysis to ifnd out the inlfuencefactors of affect the temporary plugging effect of steam stimulation after.