本文關(guān)鍵詞：南海深水區(qū)白云凹陷烴源巖熱演化與油氣資源潛力預(yù)測　出處：《熱帶海洋學報》2017年01期 　論文類型：期刊論文

  更多相關(guān)文章： 珠江口盆地 白云凹陷 烴源巖熱演化及排烴量 聚集系數(shù) 資源潛力

【摘要】：基于鉆井、測井、地震及地質(zhì)等資料及盆地數(shù)值模擬技術(shù),結(jié)合成因法及類比法,對南海深水區(qū)白云凹陷現(xiàn)今地溫場特征、烴源巖熱演化、烴源巖排烴強度、烴源巖排烴量以及已發(fā)現(xiàn)油氣田石油、天然氣聚集系數(shù)進行了系統(tǒng)研究,進而綜合預(yù)測白云凹陷油氣資源潛力。研究表明,白云凹陷地溫梯度較高,介于34~67℃·km~( 1)之間,均值為40℃·km~( 1),有利于有機質(zhì)的成熟與烴類生成;各烴源巖現(xiàn)今均處于成熟生油或過成熟生氣階段,烴源巖成熟度從珠海組頂面到文昌組底面增幅較大,文昌組烴源巖底面過成熟面積占凹陷面積的53.7%;各烴源巖排氣強度均大于排油強度,且恩平組上段為主力排烴層位;文昌、恩平及珠海組3套烴源巖總排烴量為1143×10~8m~3油當量。且結(jié)合石油、天然氣聚集系數(shù)預(yù)測白云凹陷保守資源量為25.2×10~8m~3油當量。
[Abstract]:Based on drilling, logging, seismic and geological data and basin numerical simulation technology, combined with genetic method and analogy method, the characteristics of present geothermal field, thermal evolution of source rock and hydrocarbon expulsion intensity of source rock in Baiyun Sag, South China Sea deep water area are studied. The hydrocarbon expulsion capacity of source rock and the oil and gas accumulation coefficient of oil and gas fields have been systematically studied, and the potential of oil and gas resources in Baiyun sag has been comprehensively predicted. The results show that the geothermal gradient of Baiyun sag is high. The average value is 40 鈩，

本文編號：1410081