普光地区中三叠统雷口坡组顶部储层分布预测

发布时间：2018-06-01 03:12

本文选题：普光地区 + 雷口坡组　；参考：《石油地球物理勘探》2017年06期

【摘要】：普光地区雷口坡组顶部储层薄,与围岩物性的差异小,地震响应微弱,难以识别,对储层预测造成了极大的困扰。针对这一难点,利用反褶积拓频和90°相位转换技术对地震资料进行了处理,并利用处理后的资料进行储层标定,明确储层的地震响应特征;在此基础上,利用属性分析、波形聚类、相干分析、波阻抗反演等方法进行了储层预测。预测结果表明储层分布主要受古地貌和断裂的控制,工区西南部是储层发育的有利区域。在普光地区应用表明:通过反褶积拓频和90°相位转换对地震资料的处理,突出了雷口坡组顶部薄储层(5~20m)的地震响应特征;并形成了一套以精细标定为基础、适合雷口坡组顶部储层的预测思路,预测结果可靠性较高。
[Abstract]:The reservoir at the top of the lekou slope group in the Puguang area is thin and has small difference from the physical property of the surrounding rock. The seismic response is weak, and it is difficult to identify. It has caused great trouble to the reservoir prediction. In this difficulty, the seismic data are treated by the deconvolution extension and 90 degree phase conversion technology, and the reservoir is demarcated with the processed data to clear the reservoir. On this basis, the reservoir prediction is carried out by means of attribute analysis, waveform clustering, coherent analysis, and wave impedance inversion. The prediction results show that the reservoir distribution is mainly controlled by paleogeomorphology and fracture, and the southwest of the industrial area is a favorable area for the development of the reservoir. The application in the Puguang area shows that through the deconvolution extension and the 90 degree phase The seismic data processing by bit conversion highlights the seismic response characteristics of the thin reservoir at the top of the Lei Kou slope group (5~20m), and forms a set of prediction ideas based on fine calibration and suitable for the top reservoir of the Lei Kou slope group, which has a high reliability.
【作者单位】：中国石化中原油田分公司物探研究院;成都信息工程大学通信工程学院;中国石化地球物理重点实验室;
【基金】：国家自然科学基金资助项目(41404102) 四川省杰出青年学术和技术带头人资助计划项目(2016JQ0012) 四川省教育厅重点基金项目(16ZA0218)联合资助
【分类号】：P618.13

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