| 鸳鸯沟洼陷西斜坡成岩作用定量表征及有利区带预测 |
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| 引用本文： | 陈振岩,孟元林,高建军,黄文彪.鸳鸯沟洼陷西斜坡成岩作用定量表征及有利区带预测[J].地学前缘,2008,15(1):71-79. |
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| 作者姓名： | 陈振岩 孟元林 高建军 黄文彪 |
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| 作者单位： | 1. 中国石油,辽河油田公司勘探开发研究院,辽宁,盘锦,124010
2. 大庆石油学院,黑龙江,大庆,163318 |
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| 摘 要： | 储层实测孔隙度、普通薄片、铸体薄片和扫描电镜的资料表明,辽河坳陷鸳鸯沟洼陷西斜坡新生界储层在纵向上发育三个次生孔隙带。从而在一个普遍低孔渗背景下,形成了孔隙度相对较高的优质储层。优质储层的形成和分布主要受沉积微相和成岩作用的双重影响与控制。它们形成于辫状分流河道、河口坝+席状砂沉积微相,目前处于早成岩阶段B期—中成岩阶段A1亚期,发育溶蚀成岩相。该文通过成岩作用定量表征方法,预测了鸳鸯沟洼陷西斜坡成岩阶段和成岩相的横向展布。通过成岩相图和沉积微相图的叠合,预测了沙三中上亚段优质储层的分布。预测结果表明,优质储层主要发育于斜坡区的中部。
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| 关 键 词： | 储层表征 成岩作用 成岩相 成岩模拟 有利区带 鸳鸯沟洼陷 辽河坳陷 |
| 文章编号： | 1005-2321（2008）01-0071-09 |
| 收稿时间： | 2007-10-16 |
| 修稿时间： | 2007-11-05 |
Quantitative characterization of diagenesis and prediction of favorable areas in the west slope of Yuanyanggou subsag |
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| Chen Zhenyan,Meng Yuanlin,Gao Jianjun,Huang Wenbiao.Quantitative characterization of diagenesis and prediction of favorable areas in the west slope of Yuanyanggou subsag[J].Earth Science Frontiers,2008,15(1):71-79. |
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| Authors: | Chen Zhenyan Meng Yuanlin Gao Jianjun Huang Wenbiao |
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| Abstract: | There exist three secondary pore zones vertically in the Cenozoic reservoirs in the west slope of the Yuanyanggou subsag, as manifested by the measured porosity data,thin sections, blue epoxy resin-impregnated thin sections and scanning electron microscopy. This caused the high-quality reservoirs to have developed. The formation and occurrence of the high-quality reservoirs were controlled by depositional microfacies and diagenesis. The high-quality reservoirs are dominantly formed in the braided channel, channel mouth bar and sheet sand deposits; they are in the early diagenetic stage B-middle diagenetic stage A1 ; dissolved diagenetic facies are developed. The diagenetic stage and the lateral distribution of diagenetic facies are predicted for the west slope of the Yuanyanggou by using the reservoir characterization method; in this method the paleotemperature, the vitrinite reflectance, the sterane isomerization rate and the authigenetic quartz concentration in space and time are modeled, The distribution of high-quality reservoirs of the third middle-top member of the Shahejie Formation are delineated by superposing the diagenetic facies map on the microfacies map. They are mainly distributed in the middle part of the slope. |
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| Keywords: | reservoir characterization diagenesis diagenetic facies diagenetic modeling favorable areas Yuanyanggou subsag Liaohe depression |
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