摘要
Terrestrialfaultedlacustrinebasinisconsideredasafavorableplaceforthedevelopmentofsourcerocks,especiallythefaultbasinsineasternChina.BasedonmolecularcompositionstudyofsaturatedandaromatichydrocarbonsintheextractsofsourcerocksoftheYingchengandShaheziformationsintheLishuFaultDepression,itisrevealedthattheextractsofsourcerocksareprovidedwithlowratioofPr/Ph,lowcontentofC24tetracyclicterpanes,highcontentoftricyclicterpanesandgammacerane,relativelyhighcontentofC27steranesinthesagbeltanditsperiphery;relativelyhighratioofPr/Ph,relativelyhighcontentoftetracyclicterpanesandgammacerane,lowcontentofC27steranesandobviousadvantagesofC29steranesinitsgentleslopebelt;withhighratioofPr/Ph,highcontentofC19,C20tricyclicandC24tetracyclicterpanes,verylowcontentofgammaceraneandC27steranes,andhighcontentofC29steranesintheedgeoffaultdepression.Accordingtotheorganicmatterinputandsedimentaryenvironment,threetypesofsourcerockshavebeenestablished,which,respectively,arethemodeofmixingorganicmatterinputindeepandsemi-deeplake,theadvantageofterrigenousinputinshallowlakeandterrigenousinputinshore-shallowlacustrine.Thefirstmodeissupposedtogenerateoilandgas,whilethesecondonetendstogenerateoil.ThedistributioncharacteristicsofoilandgasintheLishuFaultDepressionareverylikelytobecontrolledbyhydrocarbongeneratingcharacteristicofdifferentsourcerocktypes.
出版日期
2013年04月14日(中国期刊网平台首次上网日期,不代表论文的发表时间)