|本期目录/Table of Contents|

[1]郝鹏,臧春艳,王波,等.渤中凹陷西次洼烃源岩地球化学特征及油源对比[J].断块油气田,2019,26(06):681-686.[doi:10.6056/dkyqt201906001]
 HAO Peng,ZANG Chunyan,WANG Bo,et al.Geochemical characteristics of source rocks and oil-source correlation in western sub-sag of Bozhong Sag[J].Fault-Block Oil and Gas Field,2019,26(06):681-686.[doi:10.6056/dkyqt201906001]
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渤中凹陷西次洼烃源岩地球化学特征及油源对比(PDF)
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《断块油气田》[ISSN:1005-8907/CN:41-1219/TE]

卷:
26
期数:
2019年06
页码:
681-686
栏目:
地质勘探
出版日期:
2019-11-25

文章信息/Info

Title:
Geochemical characteristics of source rocks and oil-source correlation
in western sub-sag of Bozhong Sag
作者:
郝鹏臧春艳王波罗程飞李阔曹洁
中海油能源发展工程技术分公司中海油实验中心,天津 300452
Author(s):
HAO Peng ZANG Chunyan WANG Bo LUO Chengfei LI Kuo CAO Jie
(CNOOC Experimental Center, CNOOC EnerTech-Drilling & Production Co., Tianjin 300452, China
关键词:
烃源岩色谱 ̄质谱碳同位素油源对比渤中凹陷西次洼
Keywords:
source rock GC-MS carbon isotope oil-source correlation western sub-sag of Bozhong Sag
分类号:
TE122.1
DOI:
10.6056/dkyqt201906001
文献标志码:
A
摘要:
根据渤中凹陷西次洼东三段、沙一段和沙三段烃源岩沉积环境和有机质母源的差异,总结了鉴别3套烃源岩的生物标志化合物组合参数,根据多种地球化学资料,对西次洼6个含油气构造的原油及油砂进行了油源对比。结果表明:C24/C26(S+R)、?酌蜡烷异常指数、4MSI、C29αββ/(ααα+αββ)等生物标志化合物参数可以有效区别不同的烃源岩。研究区原油分为4类:Ⅰ类原油来源于沙三段烃源岩,分布于渤中8 ̄D油田;Ⅱ类原油来源于东三段烃源岩,分布于渤中1 ̄A、渤中2 ̄A油田古近系,曹妃甸L油田中生界和曹妃甸5 ̄E构造;Ⅲ类原油来源于沙一段烃源岩,分布于曹妃甸6 ̄D油田古近系和曹妃甸L油田新近系;Ⅳ类原油为混合型原油,分布于渤中1 ̄A、渤中2 ̄A、曹妃甸6 ̄D油田新近系。渤中8 ̄D油田和曹妃甸5 ̄E构造整体为单源供烃,其余油田古近系为单源成藏,新近系为多源混合成藏。
Abstract:
According to the differences of depositional environments and organic matter of members E2s3, E2s1 and E3d3 of the western sub-sag of Bozhong Sag, the biomarker parameters for identifying the three sets of source rocks were revealed. On this foundation, applying various geochemistry data, a rigorous study on oil-source correlation in six oil fields in the western sub-sag was made. The result shows that using C24/C26(S+R), gammacerane index, 4MSI and C29αββ/(ααα+αββ) biomarker parameters can distinguish the different source rocks effectively. The crude oil in the western sub-sag of Bozhong Sag can be divided into four types. The first type comes from E2s3 source rock, which is distributed in Caofeidian 8-D oilfield. The second type is derived from E3d3 source rock, mainly distributed in Paleogene reservoir of Bozhong 1-A and 2-A oilfields, Mesozoic reservoir of Caofeidian L oilfield, and Caofeidian 5-E structure. The third type is from E2s1 source rock and distributed in Paleogene reservoir of Caofeidian 6-D oilfield and Neogene reservoir of Caofeidian L oilfield. The fourth type is a mixed type of crude oil supplied by multiple sets of source rocks, mainly distributed in the Neogene reservoir of Bozhong 1-A oilfield, Bozhong 2-A oilfield and Caofeidian 6-D oilfield. Caofeidian 8-D and Caofeidian 5-E structures are single hydrocarbon source reservoirs, while the Neogene reservoir of the other oilfields are accumulated by multi-sources and the Paleogene reservoir is supplied by a single source rocks.

参考文献/References:

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2019-11-19