【摘要】：惠州凹陷是珠江口盆地已經(jīng)證實(shí)的富生烴凹陷,存在文昌組和恩平組兩套有效烴源巖,一直以來都是以文昌組中深湖相烴源巖為勘探重點(diǎn)。隨著勘探的深入,惠州地區(qū)以恩平組為代表的淺湖-沼澤相烴源巖的貢獻(xiàn)越來越明顯,惠州凹陷東部新區(qū)基本都為淺湖-沼澤相烴源巖供烴,周邊井鉆探證實(shí)該套烴源巖已經(jīng)成藏。通過構(gòu)造-結(jié)構(gòu)剖析、物源分析、地震相調(diào)研對(duì)比、沉積體系細(xì)致研究以及對(duì)淺湖-沼澤相烴源巖的特征分析,揭示了惠東地區(qū)淺湖-沼澤相烴源巖優(yōu)勢發(fā)育機(jī)理。經(jīng)過計(jì)算,惠東新區(qū)淺湖-沼澤相烴源巖資源量為8.6億t,占到惠東地區(qū)總資源量的3/4,具有較大的勘探潛力。在總結(jié)惠東新區(qū)淺湖-沼澤相烴源巖特征的基礎(chǔ)上優(yōu)選出惠東新區(qū)淺湖-沼澤相烴源巖最有利勘探區(qū)帶。本次研究擺脫了惠州凹陷單一烴源巖勘探束縛,推動(dòng)了新區(qū)勘探進(jìn)程。
[Abstract]:Huizhou sag is a proven hydrocarbon generating sag in the Pearl River mouth basin. There are two sets of effective source rocks in Wenchang formation and Enping formation, and the exploration emphasis has always been on the source rocks of middle and deep lacustrine facies in Wenchang formation. With the development of exploration, the contribution of shallow lacustrine-marsh facies source rocks represented by the Enping formation in Huizhou area is becoming more and more obvious. The new area in the eastern part of Huizhou sag is basically shallow-lacustry-marsh source rock for hydrocarbon supply. Drilling in peripheral wells confirms that the source rocks have formed reservoirs. Through structure-structure analysis, source analysis, seismic facies investigation and contrast, detailed study of sedimentary system and analysis of the characteristics of shallow lacustry-marsh source rocks, this paper reveals the dominant development mechanism of shallow lacustry-marsh source rocks in Huidong area. The results show that the source rock resource of shallow lacustry-marsh facies in Huidong New area is 860 million t, accounting for 3 / 4 of the total resources in Huidong area, which has great exploration potential. On the basis of summing up the characteristics of shallow lacustry-marsh source rocks in Huidong New area, the most favorable exploration zone of shallow lacustry-marsh facies source rocks in Huidong New area is selected. This study got rid of the single source rock exploration shackles in Huizhou sag and promoted the exploration process in the new area.
【作者單位】： 中海石油(中國)有限公司深圳分公司研究院;長江大學(xué)油氣資源與勘探技術(shù)教育部重點(diǎn)實(shí)驗(yàn)室;非常規(guī)油氣湖北省協(xié)同創(chuàng)新中心;
【基金】：國家"十三五"重大專項(xiàng)(2016ZX05024-004) 湖北省科技創(chuàng)新群體項(xiàng)目(2016CFA024) 2015高校發(fā)展專項(xiàng)基金(K2015-12)
【分類號(hào)】：P618.13

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