Southern Huabei basin's lithofacies-paleogeographic features and oil-gas geological condition

In the field of outcrop and drilling cores and logging data detailed observation and analysis of the basis of rock combination,sedimentary fabric,sedimentary structure and profile features,such as south sequence in north China stimulation mouth sedimentary system type characteristic are studied,identifying shore bank,clastic YanChao ping and shelf three depositional systems.Meanwhile,different period lithofacies-paleogeographic features and space-time evolution are analyzed,analysis shows that the stimulation mouth sedimentary facies overall performance from zoning,east-west exhibition cloth pattern,early or late by the evolution process,water becomes shallow gradually,the shore bank-xichuan environment gradually to tidal-flat sedimentary environment transition.In lithofacies-paleogeographic research foundation to stimulation mouth hydrocarbon source rocks,reservoir and soure-reservior-roof,oil-gas geological conditions are discussed,to the south Huabei basin stimulation mouth for oil and gas forecast is providing geological data.