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塔里木盆地油田水具有高矿化度、相对贫镁、富钙、富锶等特点,在含油层中铝浓度高,铝可能以有机络合物形式存在。氢氧同位素测量值表明:侏罗系、三叠系及寒武系—奥陶系内幕油田水为成岩改造原生水;白垩系、第三系为同生沉积水蒸发残余;侏罗系与石炭系、三叠系与石炭系的不整合面附近及奥陶系顶部、塔中地区石炭系是淡水与成岩改造或蒸发残余原生水混合成因。那些δD很轻(-51.30‰—-71.00‰,SMOW)、δ_(18)O较重(-0.55％—-0.88‰,SMOW)或很重(2.90‰—4.99‰,SMOW)的油田水,应与烃—水、水—岩反应改造有关。而对水化学演化影响较大的成岩作用包括斜长石、盐类溶蚀、方解石白云化、粘土成岩作用等。
Tarim Basin oilfield water has high salinity, relatively poor magnesium, calcium rich, rich in strontium and other characteristics of the oil in the high concentration of aluminum, aluminum may exist in the form of organic complexes. Hydrogen and oxygen isotope measurements show that the Jurassic, Triassic and Cambrian-Ordovician in-the-outfields are diagenetic alterations of primary water; Cretaceous and Tertiary are evaporites of syngenetic sedimentary water; Jurassic and Carboniferous Carboniferous in the Tazhong area is caused by the combination of freshwater and diagenesis or evaporation of residual primary water. Those fields with very low δD (-51.30 ‰ - 71.00 ‰, SMOW), δ_ (18) O heavy (-0.55% - 0.88 ‰, SMOW) or heavy (2.90 ‰ -4.99 ‰, SMOW) Should be related to hydrocarbon - water, water - rock reaction transformation. Diagenesis that has a great influence on the chemical evolution of water includes plagioclase, salt dissolution, dolomitization of calcite and diagenesis of clay.