徐祖新;姜文亚;张义杰;赵萌;王居峰;

• 1:中国石油勘探开发研究院地质所

• 2:中国石油大港油田分公司勘探开发研究院

• 3:中国石油勘探开发研究院塔里木分院

• 4:西南石油大学地球科学与技术学院

摘要(Abstract)：

以沧东凹陷孔二段为例,利用地球化学、微量元素和古生物鉴别等方法,分析烃源岩的分布和地球化学特征,研究烃源岩的成烃环境,建立孔二段湖盆烃源岩发育模式,确定烃源岩与常规油和致密油分布的关系.结果表明,研究区烃源岩厚度为50~450m,暗色泥岩平均TOC质量分数为3.07%,Ro为0.5%~1.1%,有机质类型以Ⅰ-Ⅱ1型为主,优质烃源岩分布面积大;湖盆性质、古气候、古生产力和保存条件控制烃源岩的发育,孔二段沉积时期湖盆宽/深大,气候温暖湿润,水体为淡水—半咸水,上、下水体交换相对频繁,优质烃源岩主要分布于湖盆中心;湖盆中心以致密油勘探为主,湖盆边缘以常规油勘探为主.成烃环境的研究及烃源岩发育模式的建立对研究区常规油和致密油的勘探具有指导意义.

关键词(KeyWords)：沧东凹陷;孔二段;优质烃源岩;成烃环境;发育模式

Abstract:

Keywords:

基金项目(Foundation):国家科技重大专项(2011ZX05006-005)

作者(Author):徐祖新;姜文亚;张义杰;赵萌;王居峰;

Email:

参考文献(References)：

• [1]Carroll A R,Bohacs K M.Lake-type controls on petroleum source rock potential in nonmarine basins[J].AAPG Bulletin,2001,85(6):1033-1053.

• [2]Goncalves F T T.Organic and isotope geochemistry of the early Cretaceous rift sequence in the Camamu basin,Brazil:Paleolimnological inferences and source rock models[J].Organic Geochemistry,2002,33(1):67-80.

• [3]Harris N B,Freeman K H,Pancost R D,et al.The character and origin of lacustrine source rocks in the lower Cretaceous synrift section,Congo basin,west Africa[J].AAPG Bulletin,2004,88(8):1163-1184.

• [4]高宁,张立含,刘桂莲.绥滨拗陷源岩生排烃特征及油气远景区预测[J].大庆石油学院学报,2007,31(5):4-6.Gao Ning,Zhang Lihan,Liu Guilian.Characteristics of generation and expulsion hydrocarbon of source rocks and forecast of favorable area of oil-gas in Suibin depression[J].Journal of Daqing Petroleum Institute,2007,31(5):4-6.

• [5]Meyers P A,Lallier-Vergès E.Lacustrine sedimentary organic matter records of late quaternary paleoclimates[J].Journal of Paleolimnology,1999,21(3):345-372.

• [6]Talbot M R,Kelts K.Paleolimnological signatures from carbon and oxygen isotopic ratios in carbonates from organic carbon-rich lacustrine sediments[J].AAPG Memoir,1990,50:99-112.

• [7]Tnavsuu Milkeviciene K,Frederick Sarg J.Evolution of an organic-rich lake basin-stratigraphy,climate and tectonics:Piceance Creek basin,Eocene Green River formation[J].Sedimentology,2012,59(6):1735-1768.

• [8]刘传联.东营凹陷沙河街组湖相碳酸盐岩碳氧同位素组分及其古湖泊学意义[J].沉积学报,1998,16(3):109-114.Liu Chuanlian.Carbon and oxygen isotopic compositions of lacustrine carbonates of the Shahejie formation in the Dongying depression and their Paleolimnological significance[J].Acta Sedimentologica Sinica,1998,16(3):109-114.

• [9]张善文.准噶尔盆地哈拉阿拉特山地区风城组烃源岩的发现及石油地质意义[J].石油与天然气地质,2013,34(2):145-152.Zhang Shanwen.Identification and its petroleum geologic significance of the Fengcheng formation source rocks in Hala'alt area,the northern margin of Junggar basin[J].Oil&Gas Geology,2013,34(2):145-152.

• [10]白玉彬,赵靖舟,赵子龙,等.鄂尔多斯盆地志丹地区延长组长7致密油成藏条件与成藏特征[J].石油与天然气地质,2013,34(5):631-639.Bai Yubin,Zhao Jingzhou,Zhao Zilong,et al.Accumulation conditions and characteristics of the Chang7tight oil reservoir of the Yanchang formation in Zhidan area,Ordos basin[J].Oil&Gas Geology,2013,34(5):631-639.

• [11]蔡希源.湖相烃源岩生排烃机制及生排烃效率差异性——以渤海湾盆地东营凹陷为例[J].石油与天然气地质,2012,33(3):329-334.Cai Xiyuan.Hydrocarbon generation-expulsion mechanisms and efficiencies of lacustrine source rocks:A case study from the Dongying sag,Bohai bay basin[J].Oil&Gas Geology,2012,33(3):329-334.

• [12]朱晓军,蔡进功.泥质烃源岩的比表面与有机质关系研究进展及意义[J].石油与天然气地质,2012,33(3):375-384.Zhu Xiaojun,Cai Jingong.Progress and significance of research on relation between specific surface area and organic matter in argillaceous source rocks[J].Oil&Gas Geology,2012,33(3):375-384.

• [13]大港油田石油地质志编辑委员会.中国石油地质志(卷四):大港油田[M].北京:石油工业出版社,1991:32-113.Dagang Oilfield Petroleum Geology of the Editorial Board.China petroleum geology(Vol.IV):Dagang oilfield[M].Beijing:Petroleum Industry Press,1991:32-113.

• [14]刘子藏.沧东—南皮凹陷基本石油地质特征与勘探方向[R].大港油田研究院,2008:89-97.Liu Zicang.Petroleum geological characteristics and exploration direction of Cangdong-Nanpi depression[R].Research Institute of Dagang Oilfield,2008:89-97.

• [15]高锡兴.黄弊坳陷石油天然气地质[M].北京:石油工业出版社,2004:155-170.Gao Xixing.The oil and gas geology of Huanghua depression[M].Beijing:Petroleum Industry Press,2004:155-170.

• [16]Bishop J K B.The barite-opal-organic carbon association in oceanic particulate matter[J].Nature,1988,332:341-343.

• [17]马宁,侯读杰,施和生,等.珠江口盆地惠州凹陷烃源岩发育的主控因素分析[J].大庆石油学院学报,2012,36(3):19-24.Ma Ning,Hou Dujie,Shi Hesheng,et al.Analysia of the main controlling fasctors of source rocks of Huizhou sag in the Pearl River Mouth basin[J].Journal of Daqing Petroleum Institute,2012,36(3):19-24.

• [18]宋涛,李建忠,姜晓宇,等.渤海湾盆地冀中拗陷束鹿凹陷泥灰岩源储一体式致密油成藏特征[J].东北石油大学学报,2013,37(6):47-53.Song Tao,Li Jianzhong,Jiang Xiaoyu,et al.Tight oil reservoir forming characteristics with the source reservoir one-piece in Shulu sag,Jizhong depression,Bohai bay basin[J].Journal of Northeast Petroleum University,2013,37(6):47-53.

• [19]张林晔,孔祥星,张春荣,等.济阳坳陷第三系优质烃源岩的发育及其意义[J].地球化学,2003,3(1):35-42.Zhang Linhua,Kong Xiangxing,Zhang Chunrong,et al.The development and its significance of Jiyang depression Tertiary source rocks[J].Geochemistry,2003,3(1):35-42.

• [20]朱光有,金强.东营凹陷两套优质烃源岩层地质地球化学特征研究[J].沉积学报,2003,21(3):506-512.Zhu Guangyou,Jin Qiang.High-quality source rocks geological and geochemical characteristics of Dongying depression[J].Acta Sedimentologica Sinica,2003,21(3):506-512.

• [21]颜照坤,段润梅,李勇,等.黄骅坳陷孔南地区孔店期徐西断层构造活动规律研究——来自沉积响应的证据[J].地质学刊,2011,35(1):1-10.Yen Zhaokun,Duan Runmei,Li Yong,et al.Xu west fault structure activity hole Huanghua depression study southern Kongdian law:Evidence from sedimentary response[J].Journal of Geology,2011,35(1):1-10.