| 直径40m溶洞距灰岩顶界面不同距离时的地震响应 |
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| 引用本文： | 孙东,王宏斌,雍学善,张虎权,高建虎,董瑞霞. 直径40m溶洞距灰岩顶界面不同距离时的地震响应[J]. 岩性油气藏, 2011, 23(1): 94-97,106 |
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| 作者姓名： | 孙东 王宏斌 雍学善 张虎权 高建虎 董瑞霞 |
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| 作者单位： | 1. 中国石油勘探开发研究院西北分院
2. 中国石油塔里木油田分公司勘探开发研究院 |
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| 基金项目： | 受中国石油天然气股份有限公司重大科技专项课题 |
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| 摘 要： | 塔中地区上奥陶统缝洞体储层大多距灰岩顶界较近,灰岩顶界表现为强地震反射,对储层的地震响应会造成影响。正演模拟表明:缝洞体距灰岩顶界0～30m时,灰岩顶界呈现地震反射缺失或明显减弱,内幕为杂乱反射;缝洞体距灰岩顶界60m时,灰岩顶界反射振幅变弱,内幕为强反射;缝洞体距灰岩顶界超过150m时,对灰岩顶界反射基本没有影响,缝洞体本身以"串珠状"反射形态出现。同时,通过实钻结果的精细标定对正演结论进行了验证。
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| 关 键 词： | 碳酸盐岩 储层预测 “串珠状”反射 正演模拟 |
Seismic response of 40 m caves with different distances from limestone top bounday |
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| SUN Dong,WANG Hong-bin,YONG Xue-shan,ZHANG Hu-quan,GAO Jian-hu,DONG Rui-xia. Seismic response of 40 m caves with different distances from limestone top bounday[J]. Northwest Oil & Gas Exploration, 2011, 23(1): 94-97,106 |
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| Authors: | SUN Dong WANG Hong-bin YONG Xue-shan ZHANG Hu-quan GAO Jian-hu DONG Rui-xia |
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| Affiliation: | SUN Dong1,WANG Hong-bin1,YONG Xue-shan1,ZHANG Hu-quan1,GAO Jian-hu1,DONG Rui-xia2 (1.Research Institute of Petroleum Exploration & Development-Northwest(NWGI),PetroChina,Lanzhou 730020,China,2.Research Institute of Exploration and Development,Tarim Oilfield Company,Korla 841000,China) |
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| Abstract: | The Upper Ordovician reservoirs mostly are close to the limestone top boundary where seismic reflection is strong,which causes influence on the seismic response of the reservoir.Forward modeling result shows that: the seismic reflection at the limestone top boundary is absent or decreased obviously with disorder inside reflection when the distance from fracture-cavity to the limestone top boundary ranges from 0 to 30 m;the seismic reflection at the limestone top boundary softens with strong inside reflectio... |
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| Keywords: | carbonate rock reservoir prediction moniliform reflection forward modeling |
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