目前高含水期油田中使用的流體取樣式電容法產出剖面測井儀因其精度低不能滿足測量高含水油田含水率的要求. 為此,利用同軸線作傳感器,使油水混合介質在同軸線內流動,通過測量油水混合介質的相位系數來得到油水混合介質的含水率. 研制的儀器不但提高了測量精度,還實現了油井含水率以往難實現的連續測量. 模擬井試驗和現場試驗結果表明了該油井含水率測量方法的新穎性及實用性.
關鍵詞: 含水率; 同軸線; 電磁波; 連續測量
Abstract : The difference in dielect ric property between oil and water is so great that their phase constant s of elect romagnetic waves are quite different . The mixture of oil/ water flows inside the coaxial line used as a sensor . The water content in the oil/ water mixture can be measured by measuring the phase constant . The measuring inst rument can improve the measuring accuracy of water content , and realizes continuous mea2 surement of water content in oil well. Simulation result s and on2site measurement s show this way of mea2
suring water content is new and practical.
Key words : water content ; coaxial line ; elect romagnetic wave ; continuous measurement