abandoned channel

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Formation Mechanism and Sedimentary Pattern of Abandoned Channels

Acta Geologica Sinica(English Edition)

1 Introduction Fluvial sedimentary systems are an important hydrocarbon reservoir in eastern China, and among meandering river reservoirs, thay are the most typical (Yu,1997). In the late stage of high water-cut development, the remaining hydrocarbon is difficult to trap because of the influence of the distribution and architecture of the abandoned channel (Zhao, 2002). Abandoned channels are the most common geomorph... (本文共11页) 阅读全文>>

Trend judgment of abandoned channels and fine architecture characterization in meandering river reservoirs: A case study of Neogene Minhuazhen Formation NmⅢ_2 layer in Shijiutuo bulge, Chengning uplift, Bohai Bay Basin, East China

Petroleum Exploration and Development

1. Research background and geological survey study of remaining oil at the late period of high water cut stage, So the predecessors have done a lot of research and At present, most oilfields in eastern China have entered the high water cut stage, traditional sedimentary microfacies obtained relatively perfect single sand body and architecture characterization cannot meet the production requirements, and analysis meth... (本文共11页) 阅读全文>>

Causes and typical control model of wind-drift sandy lands in abandoned channel of the Yellow River

Forestry Studies in China

1 Introduetion The Yellow River 15 the seeond longest river of China. Historieal reeords indieate that，from 602 B.C.to the Present，the eourse of the river exPerieneed at least five major large一scale ehanges in direetion and its levees were breaehed more thanl，500 times in the last three thousand years(Leung，1 996).As a eonsequenee the river was called“breaching twiee evety three years and changing direetion eaeh eent... (本文共6页) 阅读全文>>