准噶尔盆地陆梁地区水动力条件与油气运聚关系  

Relationship between Hydrodynamic Condition and Petroleum Migration /Accumulation in Luliang Area,Junggar Basin

作　　者：张年富[1] 王静[1] 贾希玉[1] 查明[2] 

机构地区：[1]中国石油新疆油田分公司勘探开发研究院,新疆克拉玛依834000 [2]石油大学,山东东营257062

出　　处：《新疆石油地质》2003年第6期505-508,共4页Xinjiang Petroleum Geology

摘　　要：陆梁地区水化学研究表明,研究区内发育多向型水化学剖面,可以划分出三个水文地质旋回:第一水文地质旋回C—T,属于深层静止开放的滞流型水动力系统。第二水文地质旋回J1b-J2x,属于中层弱开放的压实驱动型水动力系统。第三水文地质旋回J2t～K(J2t可属于过渡带),属于浅层强开放的重力驱动型水动力系统;在中部侏罗系矿化度偏低,出现较高—低—高的水化学剖面,说明水动力作用最强烈地带发育于三叠系和侏罗系八道湾组之间的不整合面;CaCl2型水在深部及浅部皆很发育,油气显示层位多,一方面说明它们是油气成藏的有利区,另一方面也说明断裂是良好的运移通道。The hydrochemical study shows that the multi-directional hydrochemical sections developed in research zone of Luliang area can be divided into three hydrogeological cycles.The first one(C-T)is a deep,static and opened lag-style hydrodynamic system;the second one(J 1b -J 2x )is a mid-depth,weakly opened compacting drive hydrodynamic system;the third one(J 2t -K)be-longs to shallow,strongly opened gravity drive hydrodynamic one.In the middle Jurassic,the salinity of wa ter is relatively low,appearing higher-low-high hydrochemical section,which shows the most intensive zone by hydrodynamic pro cess might develop in the unconformity between Triassic and Badaowan formation of Jurassic;the CaCl 2 water type occurs in deep and shallow forma -tions with multi-layer petroleum bearing shows,revealing that they could be favorable areas for petroleum accu mula tion,and the faults are good channels for oil-gas migration channels.

关 键 词：油气运聚 水动力条件 水化学 准噶尔盆地 

分 类 号：P618.130.1[天文地球—矿床学]