本文選題：瀝青形態(tài) + 瀝青成因��； 參考：《石油學(xué)報(bào)》2017年08期

【摘要】：運(yùn)用有機(jī)巖石學(xué)、有機(jī)地球化學(xué)和掃描電鏡等方法和技術(shù),深入研究了川中地區(qū)寒武系龍王廟組中高演化瀝青的成因類型、形成期次和來(lái)源;并在此基礎(chǔ)上,結(jié)合包裹體及構(gòu)造演化特征等,恢復(fù)了安岳氣田龍王廟組氣藏的成藏史。結(jié)果表明:(1)川中地區(qū)龍王廟組儲(chǔ)層中瀝青均來(lái)自于下寒武統(tǒng)烴源巖,瀝青成因類型多樣,以熱裂解成因?yàn)橹?(2)瀝青的形成分為3個(gè)階段,第1階段為氧化水洗型瀝青的形成,第2階段為沉淀型瀝青的形成,第3階段為熱裂解成因?yàn)r青的形成;(3)安岳氣田龍王廟組氣藏先后經(jīng)歷了5期的油氣充注,包括2期液態(tài)烴的充注、晚三疊世—早侏羅世干酪根裂解氣的充注、晚侏羅世—早白堊世原油裂解氣的充注以及喜馬拉雅期圈閉改造調(diào)整階段干氣的充注。
[Abstract]:With the methods and techniques of organic petrology, organic geochemistry and scanning electron microscope, the genetic types, forming stages and sources of the middle and high evolution bitumen of Cambrian Longwangmiao formation in central Sichuan are studied, and on the basis of these,The accumulation history of Longwangmiao formation gas reservoir in Anyue gas field is restored by combining the inclusions and structural evolution characteristics.The results show that the bitumen in the reservoir of Longwangmiao formation in central Sichuan is derived from the lower Cambrian source rock, and the formation of bitumen is divided into three stages, the first stage is the formation of oxidized water-washed asphalt, and the formation of bitumen is mainly caused by pyrolysis.The second stage is the formation of precipitated asphalt, and the third stage is the formation of pyrolytic bitumen. The gas reservoir of Longwangmiao formation in Anyue gas field has undergone five stages of oil and gas filling, including the second stage of liquid hydrocarbon filling.The filling of kerogen cracking gas from late Triassic to early Jurassic, oil cracking gas from late Jurassic to early Cretaceous and dry gas from the adjustment stage of Himalayan trap transformation.
【作者單位】： 中國(guó)石油勘探開發(fā)研究院西北分院;中國(guó)石油勘探開發(fā)研究院;中國(guó)石油化工股份有限公司石油勘探開發(fā)研究院;
【基金】：國(guó)家重大科技專項(xiàng)(2011ZX05004-001)資助
【分類號(hào)】：P618.13

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