深层重力流水道砂体储层预测方法及效果分析

由寻找单纯构造圈闭发展到岩性圈闭，及识别隐蔽非背斜岩性圈闭，如何准确对该圈闭进行定量化储层预测描述，以及储层预测的精度、可靠性合理评价，一直是地质研究人员关注的问题。依靠高品质地震、地质、测井、钻井、分析化验等资料，结合地球物理新技术、新方法，围绕深层重力流水道砂体如何从定性分析到定量预测这一核心问题，各种技术方法相互配合，成功地进行了多方法的砂体厚度预测、渗透砂体预测、物性参数预测。经钻井资料验证，均见到较好地质效果，为深层重力流水道砂体发育区的储层定量化预测摸索了一套行之有效的方法。

METHODS FOR PREDICTING RESERVOIR OF GRAVITY-FLOW SANDBODY IN DEEP WATER AND RESULTS ANALYSIS

For seeking for structural trap, lithological trap and even identifying non-anticlinal lithological trap, geological researchers must resolve question such as, how to describe reservoir quantitatively including sandbody distribution and the prediction accuracy and reliability. The paper describes the key problem detailedly that how to analyse and predict quantitatively the gravity-flow sandbody by using new geophysical technologies and methods depending on seismic, geologic, log, drilling and geochemical data etc. The thickness of sandbody, permeable sandbody and geophysical parameters of reservoir can be predicted successfully by combining various kinds of technologies and methods. The drilling data proves that the geologic results are quite excellent and it is a series of effective method for predicting reservoir with gravity-flow sandbody in deep water quantitatively.