新疆地质
新疆地質
신강지질
XINJIANG GEOLOGY
2013年
1期
37-41
,共5页
塔东地区%成熟演化%等效镜质体反射率%接力生气%生烃演化
塔東地區%成熟縯化%等效鏡質體反射率%接力生氣%生烴縯化
탑동지구%성숙연화%등효경질체반사솔%접력생기%생경연화
Eastern Tarim Basin%Thermal evolution%Equivalent vitrinite reflectance%Successive gas generation%Hydro-carbon-generation evolution
塔东地区寒武系—中下奥陶统烃源岩为海相Ⅰ类腐泥型,其热演化程度很高,基本处在高过成熟阶段,历史过程中有过很大的油气贡献.综合前人研究将本区古地温演化划分为两个大区5个阶段.同时对固体沥青求得等效镜质体反射率,利用镜质体反射率反演及BasinMod软件,来恢复各关键历史时期的成熟度,重塑整个热演化过程,划分出3种成熟演化类型.据干酪根生气理论和“接力生气”来划定塔东地区有利生烃区范围.
塔東地區寒武繫—中下奧陶統烴源巖為海相Ⅰ類腐泥型,其熱縯化程度很高,基本處在高過成熟階段,歷史過程中有過很大的油氣貢獻.綜閤前人研究將本區古地溫縯化劃分為兩箇大區5箇階段.同時對固體瀝青求得等效鏡質體反射率,利用鏡質體反射率反縯及BasinMod軟件,來恢複各關鍵歷史時期的成熟度,重塑整箇熱縯化過程,劃分齣3種成熟縯化類型.據榦酪根生氣理論和“接力生氣”來劃定塔東地區有利生烴區範圍.
탑동지구한무계—중하오도통경원암위해상Ⅰ류부니형,기열연화정도흔고,기본처재고과성숙계단,역사과정중유과흔대적유기공헌.종합전인연구장본구고지온연화화분위량개대구5개계단.동시대고체력청구득등효경질체반사솔,이용경질체반사솔반연급BasinMod연건,래회복각관건역사시기적성숙도,중소정개열연화과정,화분출3충성숙연화류형.거간락근생기이론화“접력생기”래화정탑동지구유리생경구범위.
@@@@After a long time’s thermal evolvement, marine sapropelic source rocks in Cambrian-middle Ordovician, mainly type I kerogen,had underwent complicated periods of maturation in a high overmature stage,and generated oil and gas in time history.With researches of predecessors,palaeogeothermal in the Eastern Tarim Basin can be divided into five phases and two zones.Used solid bitumen in the source rocks to measure equivalent vitrinite reflectance and Basin-Mod1-D software,we inversed Ro so as to get the evolution extent of key periods. Meanwhile,thermal evolution types of study area can be divided into three ones By the process remolding.Finally, with the successive gas generation and theory of hydrocarbon getting from kerogen,we draw the line of favorable generation area in the Eastern Tarim Basin.
