摘要
Abstract
There are many provenance systems in Gubei Sag of Es3.Es3 is one of the main oil-bearing horizons of oil and gas exploration in Gubei Sag.Because of the great depth,the reservoir property is relatively poor.Influenced by such factors as sedimentary type and diagenesis,the reservoir characteristics of different provenance systems are different.The sedimentary type not only restricts the original physical properties,but also influences the later diagenesis.In the same diagenetic stage,there are differences in the physical properties of different sedimentary types.In the same sedimentary type there are also many differences between different sedimentary microfacies.The fan deltas are the best,and the second is the underwater fan.The best part of the fan delta is the river channel and estuary sand bar in the front of the fan delta.The influence of different provenance systems by depth,rock characteristics,the moving distance of different factors,in the stage of diagenesis,diagenetic types and other aspects are different.These factors continue to transform the reservoir.Ultimately these factors lead to the Kendong and Gudao provenance systems to develop the best reservoirs,followed by Changdi and Chengdong is the worst.关键词
储层物性/成岩作用/沉积作用/影响因素/孤北洼陷Key words
the reservoir physical property/diagenesis/sedimentation/influencing factor/Gubei Sag分类
地质学
