海洋地质前沿2024，Vol.40Issue(1)：28-35,8.DOI:10.16028/j.1009-2722.2023.033
莺歌海盆地中新统海相烃源岩有机相特征
Organic facies characteristics of Miocene marine source rocks in Yinggehai Basin
摘要
Abstract
To evaluate the Miocene marine source rocks in the Yinggehai Basin,based on the geochemical data of source rocks,the organic facies of the Miocene source rocks were classified,the corresponding relationship between organic facies and sedimentary facies was clarified,and the planar distribution of the source rocks was predicted.Results show that the Miocene marine source rocks could be divided into four types according to the source of organic matter and sedimentary environments:marine terrestrial type,marine mixed source type Ⅰ,marine mixed source type Ⅱ,and marine endogenous type.The corresponding relationship between different or-ganic facies and sedimentation is good,among which fan delta and coastal areas correspond to marine terrigenous types,inner shallow sea corresponds to marine mixed source type Ⅰ,outer shallow sea and half deep sea corres-ponds to marine mixed source type Ⅱ,and outer shallow sea,semi deep sea and deep sea corresponds to marine endogenous types.Type Ⅱ hydrocarbon source rocks are widely distributed with large thickness and rich organic matters.The organic matter is mainly type Ⅱ2,and a small amount of type Ⅲ,and have good preservation condi-tions.They are the main gas source rocks in the Yinggehai Basin.This study provided an important basis for pre-dicting the planar distribution of high-quality marine source rocks in the Yinggehai Basin and accurately evaluat-ing their resource potential.关键词
莺歌海盆地/中新统/海相烃源岩/生源构成/沉积相/烃源岩分布Key words
Yinggehai Basin/Miocene/marine source rock/biological source composition/sedimentary facies/distribution of hydrocarbon source rocks分类
海洋科学引用本文复制引用
刘海钰,郭潇潇,庹雷,吴杨瑜,李珊珊,夏磊..莺歌海盆地中新统海相烃源岩有机相特征[J].海洋地质前沿,2024,40(1):28-35,8.基金项目
中海石油(中国)有限公司科技项目"南海西部高温高压气藏勘探开发技术及勘探新领域研究"(CNOOC-KJ 135 ZDXM 38 ZJ 02 ZJ) （中国）
