南阳凹陷复杂断块的解释方法及应用
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摘要
南阳凹陷地下地质条件复杂,就圈闭而言几乎都以小断块、小断块群面貌出现,面积大多小于1km2,含油带窄,充满系数低。复杂的储藏条件使小断块圈闭钻探风险很高。三维地震一体化解释方法的应用,提高了该类地区的钻井成功率。对复杂断块的解释主要运用了三维地震一体化中的相干体技术、可视化技术、层位空间自动追踪技术等。利用该方法在南阳地区优选的3个小断块圈闭,经钻探试油,均获工业油气流。
Nanyang depression has complex subsurface geo-logic conditions and small fault block traps with area s smaller than1km 2 ,narrow oil-bearing zones and low fill factor.Exploratory drilling in small fault block traps is at high risk due to the complex reservoir conditions.The application of integrated3-D seismic interpretation techniques such as coherence cube,visualization and au-tomatic tracing of horizon improved the success rate of exploratory drilling in this area.Drilling in3small fault traps selected with this method in Nanyang depression discovered flow oil and gas.
引文
1佘德平.应用三维相干技术进行精细地震解释犤M犦.石油物探,2000,39(2)
    2MikeBahorich著,孙跃华译.断层和地层特征的三维地震不连续性:相干数据体犤J犦.国外油气勘探,1996,8(3)
    3王咸彬.真(全)三维构造解释技术初探犤J犦.石油物探,2000,39(2)

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