Depositional system of the Neogene shallow water delta in Bohai Sea area;

A discussion on features of sedimentary composition of shallow water delta fades: Taking BZ25 - 1S oilfield as an example;

Study of restraining barrier and interbeds in shallow water delta fades controlled by middle well-pattern density-taking Bozhong 25 -1 Nan oilfield as example;

The grain size analysis for the shallow-water delta microfacies: An example from one well in the Bozhong 25-1 Southern Oil Field;

Types, characteristics of sandbodies in shallow-water deltafront and sedimentary models in Northern Songliao Basin, China;

Study on shallow-water delta deposition in Yanchang Formation of Xiasiwan,Ordos Basin

It was presented that Putaohua Formation is shallow lacustrine delta deposit which is mainly composed of delta fore-facies zone and differs from typical delta deposit mode in three aspects,including that:fore delta zone spread over the whole lake basin,b.

Based on the core and logging datum,and through the research of mudstone s colors,granularity distribution,sedimentary structures,fossils,rock types and their association in the fourth Member of the Quantou Formation in Fuyu oilfield in south part of Songliao basin,it confirmed that the sedimentary environment here was shallow delta facies.