Songfangtun Oilfield Wish Experimental Area Into The Experimental Study Of Water Quality Standards

The problem about water quality of water-flooding is always a hard engineering technical problem for engineers and technicians to solve. Inject unqualified water will not only make water injecting equipment severe corrosion , increase the cost of water injection, system maintenance , repair replacement and operating , disturb normal operation of water 梖looding in oil field , but more seriously, when the solid particulates in the injected water and corrosion product of water inject equipment enter into formation, it will make reservoir choke and form secondary damage, then it will formation permeability severity reduced and make heterogeneous seepage physical property of water injection profile increase. All this will lead to reservoir energy insufficiency and oil well production fell down and reservoir development index effect and dynamic become worse.Based on the actual conditions of ZhuSan test area of SongFangTun oil field in DaQing, Reservoir characterization and sensitivity of reservoir rock have been studied which include mechanism and experimental study of water-sensitive acid-sensitive alkali-sensitive salt-sensitive and velocity-sensitive. The mechanism and experimental study of the law how injected water damage formation have been done, which include the study of how suspended solid concentration and it' dimension corrosion product and bacteria damage formation. The study of how the oil contented in the injected water damage the formation has been done. The research of bacteria category and their growth conditions have been done. The mechanism and experimental study of how the gas dissolving in injected water erodes the water-flooding transmission line has been done The study of oil field water scaled type . it's influencing factor and scaling tendency forecast have been done. Through all these study, adapted to the reservoir test of area with different permeability has been established. This paper is based on theory. Experiment is use as the main research instrument in this paper. Based on reservoir preserve and on- ground equipment protection, water quality criteria adapted to the reservoir of test area has been It provide theoretical base and method for water quality criteria establishment in water ?flood development reservoir in similarity reservoir.