The new finding of Neogene marine low resistivity light oil field in the western part of Pearl River Mouth Basin |
| |
Authors: | Xie Yuhong |
| |
Affiliation: | Zhanjiang Co. of CNOOC Ltd., Zhanjiang, Guangdong 524057, China |
| |
Abstract: | Based on the new finding of Wenchang L low-resistivity light oil field, the finding process, reservoir characteristics and pool-forming pattern were studied. The oil-rock correlation, neritic reservoir type, hydrocarbon conduct system and dominant migration and accumulation direction,and new techniques were discussed. The results showed that large amount of hydrocarbon generated by shallow lacustrine mudstone and shale of Eocene Wenchang formation could migrate from sag to Qionghai uplift distantly; neritic shoal-bar reservoir have developed in the 1st member of Zhujiang formation, dip-sag faults and regional good marine sandstone layers of the 1st and the 2nd member of Zhujiang formation have constituted hydrocarbon conduct system in Qionghai uplift; the late fault system which were controlled by Dongsha tectonic movement constructed the connection between lower hydrocarbon and upper neritic shoal-bar reservoir. Therefore, the pool-forming pattern with "vertical migration and accumulation, secondary structure-lithology-dominated" was proposed. Finally the enlightenment of explorating new findings was discussed. |
| |
Keywords: | Wenchang L low resistivity light oil field finding process reservoir characteristics pool forming pattern Qionghai uplift |
本文献已被 CNKI 等数据库收录! |
| 点击此处可从《中国工程科学》浏览原始摘要信息 |
|
点击此处可从《中国工程科学》下载全文 |
|