The sedimentary characteristics of Braided river delta of Bayanhua group in Baiyinchagan sag

It was introduced.about the Paleogeography sedimentary background of Bayanhua Group in Baiyinchagan Sag in the article.Based on a great quantity of geological data,sedimentary characteristics of braided river delta,such as lithology,architecture,sedimentary structure and sequence,were analyzed.Braided river delta is a kind of sedimentary type favorable for oil-gas enrichment in continental sedimentary basins.Braided channel in braid delta plain and underwater distributary channel in braid delta front can both form favorable reservoir,associated with cap rock vertically,creating favorable hydrocarbon reservoir conditions.