VARIATION CHARACTERISTICS OF THE FLUID FEATURES AND ITS SIGNIFICANCE IN CAINAN OILFIELD OF THE JUNGGAR BASIN
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摘要: 在油气运移过程中,由于运移的层析效应、氧化变质、热变质作用及水动力条件的变化,使地层流体即油气水的物理化学性质产生一系列的变化,从而获知有关油气运移及保存方面的信息.研究结果表明,断裂是彩南油田深部油气向上运移、渗入水向下渗透的通道,上、下运移的流体均有水平顺层运移的特点.渗入水阻碍了油气继续向上散失,对浅层次生油气藏的形成起到了推动作用.侏罗系西山窑组在彩南北断裂以西与彩南断裂以东不是一个水动力系统;并且彩南北断裂以西地层水水动力较弱,有利于油气的保存.侏罗系八道湾组在彩南北断裂以西与彩南断裂以东应属于同一个水动力系统,且矿化度均较高,有利于油气的保存.Abstract: In the migration process of oil and gas,the liquid's features may change because of oxidation-deterioration and thermal-deterioration and the change of the hydrodynamic force.So the information about the migration and preservation of oil and gas can be learned from the features of the liquids in formation.The results indicate that the fault can act as a passage for the liquid flowing,including oil and gas's migration and water's permeating.The flowing includes horizontal way along the formation.The permeating water obstructs the oil and gas migrating and disappearing.The Cainan North Fault and Cainan Fault in Jurassic Xishanyao Formation are not belong to one hydrodynamic force system,and the hydrodynamic force is weaker in the west of the Cainan North Fault than in other areas.The weaker hydrodynamic force is good for the hydrocarbon preservation.The Jurassic Badaowan Formation is one hydrodynamic force system in the west of the Cainan North Fault and the Cainan Fault,and the higher water salinity is good for the preservation of oil and gas.
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Key words:
- liquid features /
- hydrocarbon migration /
- hydrocarbon preservation /
- Cainan Oilfield /
- Junggar Basin
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[1] 邸世祥.油田水文地质学[M].西安:西北大学出版社,1991 [2] 王仲候,张淑君.克拉玛依油区高矿化重碳酸钠型水的发现与特征[J].石油实验地质,1998,20(1):39-43 [3] 郝石生,陈章明.天然气藏的形成与保存[M].北京:石油工业出版社,1995 [4] 潘钟祥.石油地质学[M].北京:地质出版社,1986 [5] 加德日-卡苏莫夫 A C[苏].油藏原油性质的变化[M].王如义译.哈尔滨:黑龙江科学技术出版社,1986 [6] 朱玉双,王震亮,高红等.利用油气水物理化学特征探讨油气成藏机制[J].西北地质,2000,33(3):29-35 [7] 王德海,郭峰,任国选等.松辽盆地东南隆起区断层与油气运移及成藏[J].石油实验地质,2006,28(4):1-5 [8] 朱玉双,王震亮,高红等.油气水物化性质与油气运移及保存[J].西北大学学报,2000,30(5):415-418 [9] 陈安定.氮气对海相地层油气保存的指示作用[J].石油实验地质,2005,27(1):85-89 [10] 朱玉双,王震亮,林艳萍等.石西油田石炭系水动力特征及其与含油性关系[J].地球化学,2003,32(4):387-392 -
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