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准噶尔盆地陆西地区清一段非构造油气藏勘探
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摘要
在精细研究准噶尔盆地陆西地区露头、岩心、钻井、测井及三维地震等资料的基础上,对已知油气藏进行解剖,认为石南31井区下白垩统清水河组油气藏为重力流水道成因的岩性油气藏,并根据岩心、测井曲线和地震反射特征把清水河组底部的砾岩划分为底砾岩和滑塌砂砾岩,为该地区的非构造油气藏勘探开辟了一条道路。用实例介绍了利用地震属性确定含砂率拟合技术、三维可视化雕刻技术、储集层反演等技术如何识别非构造油气藏。所提出的寻找非构造油气藏的思路,适用于在"断坡、阶地、重力流"地质体中勘探非构造油气藏。
This paper anatomizes the known reservoirs based on the researches on the outcrops,core samples,drilling,well logs and 3D seismic data,etc.,proposes for the first time that the reservoir in Wellblock Shinan-31 is lithological reservoir coming from water channel of gravity current and distinguishes the conglomerate of the bottom of Qingshuihe formation (K1q1) into basal conglomerate and slip glutenite. The two kinds of conglomerates have identified from cores,well logs and seismic profile in this area. Also,this paper takes an example to illustrate the recognition of non-structural reservoirs in terms of combination of geological thought with the techniques of sand-content matching,3D visualization and reservoir inversion. Finally,this paper generalizes the thoughts for exploration of non-structural reservoirs in this area by ways of fault ramp,terrace land and gravity current.
引文
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    [2]匡立春,吕焕通,齐雪峰,等.准噶尔盆地岩性油气藏勘探成果和方向[J].石油勘探与开发,2005,32(6):32-37.
    [3]蒋恕,王华.断陷湖盆隐蔽油气藏勘探方法与实践——以泌阳凹陷为例[J].石油天然气学报,2005,27(3):273-277.
    [4]贾承造,赵文智,邹才能,等.岩性地层油气藏勘探研究的两项核心技术[J].石油勘探与开发,2004,31(3):3-9.
    [5]于兴河编著.碎屑岩系油气储层沉积学[M].北京:石油工业出版社,2002.
    [7]鲁兵,徐可强.准噶尔盆地断裂活动与油气运聚的关系[J].新疆石油地质,2003,24(6):502-504.
    [8]徐常胜,杨梦云,江祖强,等.准噶尔盆地石南油气田头屯河组成藏模式[J].新疆石油地质,2004,25(6):639-640.

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