渤海湾盆地金县1-1构造烃源岩地化特征及评价  

Geochemical Characteristics and Evaluation of Source Rock in Jinxian 1-1 Structure, Bohai Bay Basin

作　　者：张文凯[1] 邹黎明[1] 谢丹[1] 王鹏[2] 朱童 谭梦琪 周瑶[4] 

机构地区：[1]成都理工大学能源学院,四川成都610059 [2]宜宾学院矿业与安全工程学院,四川宜宾644000 [3]中国石油川庆钻探工程有限公司地质勘探开发研究院,四川成都610051 [4]中国石油大庆油田公司第六采油厂,黑龙江大庆163114

出　　处：《天然气技术与经济》2015年第5期1-4,77,共4页Natural Gas Technology and Economy

基　　金：国家重大专项(编号:CCL2013TJXSBS1880)资助

摘　　要：渤海湾盆地金县构造自2005年以来在勘探上取得了较大的突破,发现了金县1-1大油田,其地质储量达1.5×108t。借着渤海湾盆地新一轮油气勘探新风,对盆地内现有油田进行最新的评估。现利用烃源岩生烃潜量、有机碳含量、干酪根类型以及岩石热解温度等地球化学参数,对金县1-1构造油气成藏条件展开全新的评估。研究表明,渤海湾盆地金县1-1构造烃源岩分布广,厚度大;烃源岩有机质丰度高,有机碳含量、生烃潜量均较大;烃源岩类型比较单一,以Ⅱ型干酪根为主,发育零星Ⅰ型干酪根。有机质处于低—成熟阶段。研究区3套烃源岩都是较好的烃源岩,相比之下,沙三段烃源岩品质最好,沙一段次之,埋深较浅的东三段较差。In Jinxian structure, Bohai Bay Basin, an exploration has made a great breakthrough since 2005. And 1.5×108t of geological reserves was discovered in Jinxian 1-1 oilfield. Along with a new- round exploration, the newest evaluation on current oilfields within this basin was implemented. And a completely new evaluation on reservoir- forming conditions was finished by using some geochemical parameters on source rock, such as hydrocarbon-generating potential, organic-carbon content, kerogen type, and pyrolysis temperature. Results show that for the source rock in this structure,(1) there is a wide distribution and a big thickness;(2) its organic matter has high abundance, and large organic carbon content and hydrocarbon- generating potential;(3) it is dominated by IItype kerogen, with very little I-type one; and(4) its organic matter is in a stage from low mature to mature. In addition, it is found that in the study area, there are three suites of source rock with good quality, the best for Shahejie 3 Member, the second for Shahejie 2Member, and the last for Dongying 3 Member with shallow burial depth, respectively.

关 键 词：渤海湾盆地 金县构造 东营组 沙河街组 烃源岩 生烃潜量 

分 类 号：P618.13[天文地球—矿床学]