EVALUATION ON EXCELLENT MARINE HYDROCARBON SOURCE LAYERS IN SOUTHEAST AREA OF THE SICHUAN BASIN——AN EXAMPLE FROM WELL D-1
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摘要: 对川东南地区丁山1井钻遇的海相地层的有机碳含量、氯仿沥青"A"、生烃潜量等进行分析,建立了该井的有机地化综合剖面.结合区域地质资料综合分析认为:川东南地区发育了上二叠统龙潭组黑色泥岩及碳质泥岩、下志留统龙马溪组底部黑色泥岩、下寒武统牛蹄塘组底部黑色泥岩3套海相优质烃源岩;震旦系灯影组含沥青藻云岩和二叠系栖霞组生屑灰岩中固体沥青和氯仿沥青"A"含量高,为好的再生烃源;龙马溪组中部灰色泥岩为一套好的烃源岩;志留系石牛栏组底部泥灰岩和龙马溪组顶部灰质泥岩为中等烃源岩.川东南地区多套优质烃源岩及再生烃源的存在,为该区的油气勘探提供了丰富的物质基础.Abstract: The synthetical organic geochemistry section was established by the data of TOC,chloroform bituminous "A",and hydrocarbon generation potential of the drilled marine sequences of Well D-1 in the southeast area of the Sichuan Basin.Synthetical analysis based on the organic geochemistry section of Well D-1,combining with regional geological information indicated that there were three sets of excellent marine source rocks developed in the area,i.e.the black mudstones and black marls of the Upper Permian Longtan Formation,black mudstones of the Lower Silurian bottom Longmaxi Formation and black mudstones of the Lower Cambrian bottom Niutitang Formation.The bituminous algal dolostone of the Sinian Dengying Formation and the bioclastic-limestone of the Permian Qixia Formation was believed to be good secondary hydrocarbon generation source because of their high solid bitumen and chloroform bituminous "A" contents.Furthermore,the mudstones of the middle Longmaxi Formation were the good source rocks.Muddy limestone of the lower Siniulan Formation and lime-mudstones of upper Longmaxi Formation were medium source rocks.Existence of many sets of excellent hydrocarbon source rocks and good secondary hydrocarbon generation source can supply abundant matters for the hyrocarbon accumulation in this area.
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[1] 陈亚光,吕勇.川东南地区丁山1井烃源岩评价[J].南方油气,2007,20(1~2):32~37 [2] 刘若冰,田景春,魏志宏等.川东南地区震旦系-志留系下组合有效烃源岩综合研究[J].天然气地球科学,2006,17(6):824~828 [3] 刘若冰,田景春,黄勇等.川东南震旦系灯影组白云岩与志留系石牛栏组灰岩储层特征[J].成都理工大学学报(自然科学版),2007,34(3):245~250 [4] 敖明冲,吕廷智,胡南方等.川东南地区丁山1井震旦系灯影组岩性特征及与邻区的对比[J].南方油气,2007,34(3):5~9 [5] 秦建中.中国烃源岩[M].北京:科学出版社,2005.228~231 [6] 秦建中,刘宝泉,国建英等.关于碳酸盐烃源岩的评价标准[J].石油实验地质,2004,26(3):281~285 [7] 戴金星,王庭斌.中国大中型天然气田形成条件与油气分布规律[M].北京:地质出版社,1997.123 [8] 梁狄刚,张水昌,张宝民等.从塔里木盆地看中国海相生油问题[J].地学前缘,2000,7(4):534~547 [9] Hunt J M.Petroleum geochemistry and geology[M].San francisco:Freeman and company,1979.524 [10] Tissot B P,Welte D.Petroleum formation and occurrence:a new approach to oil and gas exploration[M].Berlin:Springer-Verlag,1978.486 [11] 金强.有效烃源岩的重要性及其研究[J].油气地质与采收率,2001,8(1):1~4 [12] Pedersen T F,Calvert S E.Anoxia vs.productivity:what controls the formation of organic carbon-rich sediments and sedimentary rocks[J].AAPG Bulletin,1990,74:454~466 [13] Zhang Qu,Huang Haiping,Zheng Lunjun.Secondary hydrocharbon generation potential from heavy oil,oil sand and solid bitumen during the artificial maturation[J].Organic geoche-mistry,2007,38:2024~2035 [14] 秦建中,李志明,刘宝泉等.海相优质烃源岩形成重质油与固体沥青的潜力分析[J].石油实验地质,2007,29(3):280~285 [15] 秦建中,付小东,刘效曾.四川盆地东北部气田海相碳酸盐岩储层固体沥青研究[J].地质学报,2007,81(8):1065~1071 [16] 秦建中,付小东,腾格尔.川东北宣汉-达县地区三叠-志留系海相优质烃源层评价[J].石油实验地质,2008,30(4):368~374 [17] 黄籍中.应用稳定碳同位素δ13C值进行识别干酪根类型的尝试[J].石油实验地质,1980,(2):49~54 [18] 傅家谟,秦匡宗.干酪根地球化学[J].广州:广东科技出版社,1995.459~463 [19] 腾格尔,高长林,胡凯等.上扬子东南缘下组合优质烃源岩发育及生烃潜力[J].石油实验地质,2006,4(28):359~365 [20] 腾格尔,高长林,胡凯等.上扬子北缘下组合优质烃源岩分布及生烃潜力评价[J].天然气地球科学,2007,18(2):254~258 [21] 涂建琪,金奎励.表征海相烃源岩有机质成熟度的若干重要指标的对比与研究[J].地球科学进展,1999,14(1):18~23 [22] Jacob H.Disperse solid bitumens as an indicator form igration and maturity in prospecting for oil and gas[J].Erdo lund Kohle,1985,38:365 [23] 杨琦,刘伟新.松潘-阿坝地区三叠系成岩演化实验研究[J].石油实验地质,2005,27(5):532~538 [24] 丁丽荣,周丽,徐佑德.利用自生矿物探讨济阳坳陷新生代古地温[J].海洋石油,2008,26(1):26~30 [25] 刘宝珺,许效松,潘杏南等.中国南方大陆沉积地壳演化与成矿[M].北京:科学出版社,1993 [26] 马力.中国南方大地构造和海相油气地质[M].北京:地质出版社,2004 [27] 文玲,胡书毅,田海芹等.扬子地区志留纪岩相古地理与石油地质条件研究[J].石油勘探与开发,2002,29(6):11~14 [28] 严德天,王清晨,陈代钊.扬子及周缘地区上奥陶统-下志留统烃源岩发育环境及其控制因素[J].地质学报,2008,82(3):321~327 [29] 张林,魏国齐,吴世祥.四川盆地震旦系-下古生界沥青产烃潜力及分布特征[J].石油实验地质,2005,27(3):276~280 [30] 徐国盛,袁海锋,马永生等.川中-川东南地区震旦系-下古生界沥青来源及成烃演化[J].地质学报,2007,81(8):1143~1151 [31] 万云,张廷山,兰光志.川东南-黔北地区志留系生物礁与古环境演化[J].沉积学报,1997,15(增刊):106~112 [32] 郭英海,李壮福,李大华.四川地区早志留世岩相古地理[J].古地理学报,2004,6(1):20~28 [33] 宋文海.川东南下志留统小河坝砂岩含气地质条件论述:一个未来的勘探区块[J].天然气勘探与开发,1998,21(2):1~7
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