發(fā)布時(shí)間：2018-05-17 13:37

  本文選題：熱模擬 + 生排烴模式　； 參考：《石油實(shí)驗(yàn)地質(zhì)》2017年04期

【摘要】：通過(guò)渤海灣盆地東濮凹陷石炭—二疊系煤系地層實(shí)際地質(zhì)條件下煤的半開(kāi)放體系加水熱模擬實(shí)驗(yàn)研究,刻畫(huà)了該區(qū)煤巖不同溫壓介質(zhì)條件下生排烴特征及潛力。研究表明:(1)東濮凹陷石炭—二疊系煤具有極高的生烴潛力,最高產(chǎn)烴量達(dá)254 mg/g,其中氣態(tài)烴總產(chǎn)率220 m L/g,液態(tài)烴最高產(chǎn)率為145.8 mg/g;(2)煤成油的演化呈峰形尖銳的單峰特征,生油高峰在325℃(Ro=1.08%),生成的液態(tài)烴類近40%排出煤體;(3)煤成氣的演化呈多階段性逐漸增大的特征,其中325~450℃和500~550℃2個(gè)區(qū)間氣態(tài)烴類快速增加,前者主要緣于液態(tài)烴的大量裂解,后者是煤芳香結(jié)構(gòu)進(jìn)一步稠合生烴演化產(chǎn)生;(4)東濮凹陷石炭—二疊系煤既生油又生氣,其煤成油潛力與吐哈盆地侏羅系煤相當(dāng),煤成氣潛力與鄂爾多斯石炭—二疊系煤相當(dāng)。
[Abstract]:The characteristics and potential of hydrocarbon generation and expulsion in different temperature and pressure medium of coal rocks in Dongpu sag of Bohai Bay Basin are described through the experimental study on the semi-open system of coal under the actual geological conditions of Carboniferous and Permian coal measures in Bohai Bay Basin. The results show that the Carboniferous and Permian coals in Dongpu sag have extremely high hydrocarbon generation potential, with the highest hydrocarbon yield of 254mg / g, in which the total yield of gaseous hydrocarbon is 220ml / g, and the highest yield of liquid hydrocarbon is 145.8 mg / g / g). The peak of oil generation is at 325 鈩，

本文編號(hào)：1901586