渤海海域前第三系烃源岩评价 |
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引用本文: | 武海燕,任志勇,刘长海,齐玉民,王玉静.渤海海域前第三系烃源岩评价[J].重庆石油高等专科学校学报,2013(6):18-20. |
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作者姓名: | 武海燕 任志勇 刘长海 齐玉民 王玉静 |
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作者单位: | 中海油能源发展股份有限公司钻采工程研究院,天津300452 |
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基金项目: | 国家油气资源战略选区项目(XQ2004-03-10). |
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摘 要: | 为了研究渤海海域前第三系的烃源岩特征,对前第三系烃源岩的有机质丰度、有机质类型及有机质成熟度等指标进行评价.结果表明:震旦系60%的烃源岩进入了成熟带,但生烃潜力较差;古生界寒武—奥陶烃源岩除C油田之外,石碳—二叠系除了埕北及渤海西部地区之外,生烃能力较差;中下侏罗统烃源岩镜质体射率为0.5~0.6,有机碳含量较高,总烃含量比较大,生烃潜力较好;白垩系下统烃源岩有机质丰度较高,处于低成熟阶段,生烃潜力优于中下侏罗统和石碳—二叠系地层;石炭系—二叠系、中下侏罗统及白垩系下统三套地层是前第三系烃源条件较好的地层.
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关 键 词: | 烃源岩评价 前第三系 渤海海域 生烃潜力 成熟度 |
Pre-TertiAry BohAi SeA HydrocArbon Source Rock EvAluAtion |
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Authors: | WU Haiyan REN Zhiyong LIU Changhai QI Yumin WANG Yujing |
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Affiliation: | (Drilling Engineering Research Institute of CNOOC Energy Development Col, Ltd. , Tianjin 300452) |
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Abstract: | In order to study the characteristics of pre - Tertiary hydrocarbon source rocks, the abundance of organic matter, organic matter type and maturity of organic matter and other indicators are evaluated. The evaluation shows that 60% of the sinian into a mature source rock band, but most hydrocarbon potential is poor. Paleozoic cambrian ordovician hydrocarbon source rocks except C fields, the carboniferous - permian except the courtyard outside the north and the Bohai sea in the western region, less capable of hydrocarbon generation; in lower Jurassic source rocks Ro values between 0.5 and 0.6, organic carbon content is high, and the total hydrocarbon content is relative- ly large, with good hydrocarbon potential. Cretaceous source rocks under the EC has high abundance of organic matter, in low -mature stage, whose hydrocarbon potential is better than the lower Jurassic and carboniferous - permian strata. By comparing the results, carboniferous - permian, jurassic and lower cretaceous strata under the former system are the best conditions Tertiary hydrocarbon source strata. |
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Keywords: | source rock evaluation Pre - tertiary Bohai sea hydrocarbon potential maturity |
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