黄河口凹陷A区古近系沙河街组三段沉积相
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摘要
通过岩心观察描述和沉积相分析,结合地震、测井、录井、分析化验资料综合分析结果表明:黄河口凹陷A区沙河街组三段发育扇三角洲相、湖底扇相和湖泊相。沙三段下亚段沉积相特征在沙三段沉积时期具有代表性。沙三段下亚段主要储层沉积相类型为扇三角洲相和湖底扇相。扇三角洲相划分为扇三角洲平原、扇三角洲前缘和前扇三角洲3个亚相。扇三角洲平原亚相由泥石流和水道沉积组成。扇三角洲前缘亚相由近端坝和远端坝沉积组成。湖底扇相可分为内扇、中扇和外扇3个亚相。内扇主要由滑塌堆积和碎屑流沉积组成,中扇主要由碎屑流和浊流沉积组成,外扇主要由浊流沉积组成。沙三段下亚段沉积时期,沉积相的平面展布具有一定的规律性,表现为:靠近南部盆缘断裂发育扇三角洲相,向湖方向发育湖底扇相,向北逐渐过渡为湖泊相。沙三段下亚段沉积时期,盆地明显为南陡北缓的箕状断陷湖盆,陡坡带活动盆缘断裂控制了扇三角洲相的分布。
Three types of sedimentary facies including fan-delta, sublacustrine fan and lacustrine facies were developed in the Member 3 of Shahejie Formation in the Area A of Huanghekou Sag, based on the studies of cores, well logs, seismic analyses and the analyses of sedimentary facies. The characteristics of sedimentary facies of the Member 3 of Shahejie Formation are typical. In the lower part of Member 3 of Shahejie Formation, the main reservoir types are fan-delta and sublacustrine fan facies. Fan-delta can be divided into three kinds of subfacies: fan delta plain, fan delta front and prodelta. The fan delta plain is mainly composed of mud debris flow and channel sediments. Fan delta front includes proximal and distal bar deposits. Sublacustrine fan facies includes inner fan, middle fan and outer fan subfacies. The inner fan is mainly composed of slumping sediments and debris flow. The middle fan is dominated by debris flow and turbidity flow sediments. The outer fan is mainly composed of turbidity sediments. The distribution features of sedimentary facies of the lower part of Member 3 of Shahejie Formation are studied. Fan delta is located along the southern basin-margin faulted belt. Sublacustrine fan is located in the lake area. The lacustrine facies is distributed in other areas. During the sedimentary period of the lower part of Member 3 of Shahejie Formation, the basin was a graben rifted lacustrine basin and the active basin-margin faulted belt controlled the distribution of fan delta facies.
Three types of sedimentary facies including fan-delta, sublacustrine fan and lacustrine facies were developed in the Member 3 of Shahejie Formation in the Area A of Huanghekou Sag, based on the studies of cores, well logs, seismic analyses and the analyses of sedimentary facies. The characteristics of sedimentary facies of the Member 3 of Shahejie Formation are typical. In the lower part of Member 3 of Shahejie Formation, the main reservoir types are fan-delta and sublacustrine fan facies. Fan-delta can be divided into three kinds of subfacies: fan delta plain, fan delta front and prodelta. The fan delta plain is mainly composed of mud debris flow and channel sediments. Fan delta front includes proximal and distal bar deposits. Sublacustrine fan facies includes inner fan, middle fan and outer fan subfacies. The inner fan is mainly composed of slumping sediments and debris flow. The middle fan is dominated by debris flow and turbidity flow sediments. The outer fan is mainly composed of turbidity sediments. The distribution features of sedimentary facies of the lower part of Member 3 of Shahejie Formation are studied. Fan delta is located along the southern basin-margin faulted belt. Sublacustrine fan is located in the lake area. The lacustrine facies is distributed in other areas. During the sedimentary period of the lower part of Member 3 of Shahejie Formation, the basin was a graben rifted lacustrine basin and the active basin-margin faulted belt controlled the distribution of fan delta facies.
引文
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Li Bin,Meng Zifang,Li Xiangbo,et al.2005.The structural features anddepositional systems of the Early Tertiary in the Biyang Depression[J].Journal of Jilin University(Earth Science Edition),35(3):332-339(in Chinese with English abstract).
Mu Lihua,Peng Shimi,Yin Zhijun,et al.2003.Sequence stratigraphy andlithofacies palaeogeography of the Shahejie Formation of Paleogene inLiuzan Oilfield,eastern Hebei Province[J].Journal of Palaeogeogra-phy,5(3):304-315(in Chinese with English abstract).
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Zhao Chenglin,Liu Menghui,Ji Youliang.1992.Clasolite Depositional Sys-tem and Diagenesis of Paleogene in Dongpu Depression[M].Beijing:Petroleum Industry Press,60-63(in Chinese with English abstract).
Zhao Chenglin,Zhu Xiaomin.2001.Sedimentary Petrology(Third Edi-tion)[M].Beijing:Petroleum Industry Press,311-324(in Chinesewith English abstract).
蔡东升,罗毓晖,武文来,等.2001.渤海浅层构造变形特征、成因机理与渤中坳陷及其周围油气富集的关系[J].中国海上油气(地质),15(1):35-43.
冯增昭.1993.沉积岩石学[M].北京:石油工业出版社,145-146.
郭英海,刘焕杰.2000.陕甘宁地区晚古生代沉积体系[J].古地理学报,2(1):19-30.
侯贵廷,钱祥麟,宋新民.1998.渤海湾盆地形成机制研究[J].北京大学学报(自然科学版),34(4):503-509.
焦养泉,周海民,庄新国,等.1998.扇三角洲沉积体系及其与油气聚集的关系[J].沉积学报,16(1):70-75.
鞠俊成,张凤莲,喻国凡,等.2001.辽河盆地西部凹陷南部沙三段储层沉积特征及含油气性分析[J].古地理学报,3(1):64-70.
康仁华,刘魁元,赵翠霞,等.2002.济阳坳陷渤南洼陷古近系沙河街组沉积相[J].古地理学报,4(4):19-29.
李斌,孟自芳,李相博,等.2005.泌阳凹陷下第三系构造特征与沉积体系[J].吉林大学学报(地球科学版),35(3):332-339.
穆立华,彭仕宓,尹志军,等.2003.冀东柳赞油田古近系沙河街组层序地层及岩相古地理[J].古地理学报,5(3):304-315.
任作伟,李琳,张凤莲.2001.辽河盆地老第三系深层碎屑岩储层沉积相[J].古地理学报,3(4):86-94.
姚光庆,陈红汉,何士斌,等.2001.渤中地区第三系储层地质特征研究[J].中国海上油气(地质),15(4):249-253.
赵澄林,刘孟慧,纪友亮.1992.东濮凹陷下第三系碎屑岩沉积体系与成岩作用[M].北京:石油工业出版社,60-63.
赵澄林,朱筱敏.2001.沉积岩石学(第三版)[M].北京:石油工业出版社,311-324.
Cai Dongsheng,Luo Yuhui,Wu Wenlai,et al.2001.Shallowtectonic deform-ation and its relationship to hydrocarbon enrichment in BozhongDepres-sion and adjacent Areas,Bohai Bay Basin[J].China Offshore Oil andGas(Geology),15(1):35-43(in Chinese with English abstract).
Feng Zengzhao.1993.Sedimentary Petrology[M].Beijing:Petroleum In-dustry Press,145-146(in Chinese with English abstract).
Guo Yinghai,Liu Huanjie.2000.The Late Paleozoic depositional systemsof Shaanxi-Gansu-Ningxia Area[J].Journal of Palaeogeography,2(1):19-30(in Chinese with English abstract).
Hou Guiting,Qian Xianglin,Song Xinmin.1998.The origin of the BohaiBay Basin[J].Acta Scientiarum Naturalium(Universitatis Pekinen-sis),34(4):503-509(in Chinese with English abstract).
Jiao Yangquan,Zhou Haimin,Zhuang Xinguo,et al.1998.Fan deltaicdepositional systems and relationship to oil and gas accumulation[J].Acta Sedimentologica Sinica,16(1):70-75(in Chinese withEnglish abstract).
Ju Juncheng,Zhang Fenglian,Yu Guofan,et al.2001.Depositional char-acteristics and hydrocarbon accumulation of the third Member of Sha-hejie Formation reservoir in the Southern West Depression,LiaoheBasin[J].Journal of Palaeogeography,3(1):64-70(in Chinesewith English abstract).
Kang Renhua,Liu Kuiyuan,Zhao Cuixia,et al.2002.Sedimentary faciesof the Shahejie Formation of Paleogene in Bonan Sag of Jiyang De-pression[J].Journal of Palaeogeography,4(4):19-29(in Chinesewith English abstract).
Li Bin,Meng Zifang,Li Xiangbo,et al.2005.The structural features anddepositional systems of the Early Tertiary in the Biyang Depression[J].Journal of Jilin University(Earth Science Edition),35(3):332-339(in Chinese with English abstract).
Mu Lihua,Peng Shimi,Yin Zhijun,et al.2003.Sequence stratigraphy andlithofacies palaeogeography of the Shahejie Formation of Paleogene inLiuzan Oilfield,eastern Hebei Province[J].Journal of Palaeogeogra-phy,5(3):304-315(in Chinese with English abstract).
Paul Weimer.1990.Sequence stratigraphy facies geometrier and deposi-tional history of the Mississipi Fan,Gulf of Mexico[J].AAPG,74(4):425-453.
Rebecca J Dorsey.1995.Rapid subsidence and stacked,Gilbert type fanDeltas,Pliocene loreto basin,Baja,California[J].Sur.Mexico Sedi-mentary Geology,98:181-204.
Ren Zuowei,Li Lin,Zhang Fenglian.2001.Sedimentary facies of deepburial strata of the Paleogene clastic reservoirs in the Liaohe Basin[J].Journal of Palaeogeography,3(4):86-94(in Chinese withEnglish abstract).
Yao Guangqing,Chen Honghan,He Shibin,et al.2001.Geological char-acteristics of Tertiary reservoirs in Bozhong Area[J].China OffshoreOil and Gas(Geology),15(4):249-253(in Chinese with Englishabstract).
Zhao Chenglin,Liu Menghui,Ji Youliang.1992.Clasolite Depositional Sys-tem and Diagenesis of Paleogene in Dongpu Depression[M].Beijing:Petroleum Industry Press,60-63(in Chinese with English abstract).
Zhao Chenglin,Zhu Xiaomin.2001.Sedimentary Petrology(Third Edi-tion)[M].Beijing:Petroleum Industry Press,311-324(in Chinesewith English abstract).
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