In order to tackle the instability of oil-gas well wall and improve the mining efficiency of oil-gas field,an oil-gas field engineering is taken as an example,the anti-permeable well-drilling liquid system and its application is studied.Through analysis of the structure of anti-permeable well-drilling liquid system,the performance of water treatment agent and sealing agent is analyzed,application technology of the system in complex geological strata is discussed,including technolo-gies of treatment agent,tight sandstone gas reserve and rock bearing reservoir.The results show that the anti-permeable well-drilling liquid system is of stronger sealing capability,and its application in complex geological strata can effectively inhibit mudstone's waterized expansion and prevent shrinkage.In addition,the anti-temperature performance of rock core is im-proved,the discharge of mud from the bottom of well is decreased,and the pollution of well-drilling liquid to the reservoir is reduced thanks to the stronger inter-molecular action of anti-permeable strata and rock core.Thus the cost is reduced and the efficiency improved by application of polymer and inorganic salt.
关键词
反渗透/钻井/体系运用/油气田
Key words
anti-permeability/well-drilling/system application/oil-gas field
维普
万方数据