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油田水是沉积盆地中的重要流体,通过柴达木盆地北缘冷湖三号构造油田水水化学分析,来深入理解该地区的水化学特征并探讨其成因。研究表明,冷湖三号构造油田水的矿化程度较低且以CaCl_2型水为主,硅酸盐的溶解是油田水中的K、Mg、B、Li等元素的重要来源,而油田水中F含量的异常高值很可能与区内断裂作用有关。油田水水化学特征系数分析结果指示,冷湖三号构造油田水的演化是在较好的封闭条件和还原环境下进行的。和柴达木盆地西部相比,研究区油田水主要成分的含量低于或远低于柴达木盆地西部,K、Li、B等元素均未达到矿床的边界品位,目前尚难以利用。
Oilfield water is an important fluid in sedimentary basins. Based on the hydrochemical analysis of structural structure of Lenghu III in the northern margin of the Qaidam Basin, the hydrochemical characteristics of the area are explored and their causes are discussed. The results show that the mineralization degree of Cold Lake No.3 oilfield is low and CaCl2 type water is the main source. The dissolution of silicate is an important source of K, Mg, B, Li and other elements in oilfield water. However, The abnormally high content of the content is probably related to the fracture in the area. The results of chemical characteristic coefficient of water and water in oilfield indicate that the evolution of water in Lenghu No.3 oilfield is under better closed conditions and reduction environment. Compared with the western Qaidam basin, the main components of oilfield water in the study area are lower or lower than the western Qaidam basin, and the K, Li, B and other elements have not reached the boundary grade of the deposit, so it is hard to be utilized at present.