【摘要】 南美安第斯前陆盆地斜坡带主要含油气圈闭为低幅度构造-岩性圈闭,储层预测是厄瓜多尔奥连特盆地低幅度隐蔽圈闭识别和描述的重要环节。为了准确预测储层砂体及油藏空间分布特征,采用高品质3D地震资料,沿层提取包括AVO信息在内的多种地震属性参数,利用地震属性和已知井的地层物性参数建立统计对应关系,并利用这一关系预测了未知点地层的储层物性、砂岩储层空间分布特征和储层含油气性特征预测。结果表明:预测结果与已有钻井吻合程度较高;下一步勘探潜力区位于区块南部和西部。更多还原

【Abstract】 Low-relief structural-lithologic trap is dominant in slope of Andes foreland basin of South America.Reservoir prediction is very important for detection and description of low-relief subtle trap in Oriente basin of Ecuador.High-quality 3D seismic data is used to accurately predict spatial distribution of sand and reservoir.The method is,extracting inter-layer seismic attribute parameters,including AVO information;establishing statistical correspondence between the group of seismic attribute parameters and the borehole information for predicting the reservoir physical property.The sand distribution in three dimensions and hydrocarbon bearing characteristics can be predicted in the area without wells.The prediction results match wells fairly good.Next potential region should be in the southern part and the western part of this area.更多还原