摘要
利用测井资料处理获得的孔隙度计算突破压力,并以岩心分析数据作标定,结合研究区其他有关研究成果,对珠一坳陷盖层质量及与油气层分布的关系进行了分析。珠江组上段区域性盖层发育,珠江组下段和珠海组地区性及局部盖层发育,珠一坳陷已发现油气层主要分布在这3个层段;深部文昌组存在区域性盖层,同时文昌组泥岩又是珠一坳陷已被证实的烃源岩,该区深层油气勘探应具有良好的前景。
The seal quality and its relationships with hydrocarbon distribution are analyzed for Zhu I depression, using the breakthrough pressure data calculated from well log processing porosity and calibrated by core analyses, and the other research results. Regional seals are quite developed in Upper Member of Zhujiang Formation, and local seals in Lower Member of Zhujiang Formation and Zhuhai Formation, and most discovered oil and gas occur in these three intervals in the depression. In addition, there are regional seals in deep Wenchang Formation, and the mudstones in the Formation have proven hydrocarbon source rocks. It is considered that the deep exploration may has excellent prospects in the depression.
出处
《中国海上油气（工程）》
2007年第3期157-161,共5页
China Offshore Oil and Gas
关键词
测井资料
盖层评价
油气层分布
珠一坳陷
log data
seal evaluation
hydrocarbon distribution
Zhu I depression
