辽河断陷西部凹陷沙三段沉积相及相模式
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摘要
西部凹陷沙河街组三段沉积厚度大,分布范围广,是深层储层的重要组成部分。通过对沙三段岩芯、钻/测井和地震资料的研究,识别出冲积扇、扇三角洲、近岸浊积扇、远岸浊积扇、断槽重力流水道、滑塌浊积扇及湖泊等7种沉积相类型,其中扇三角洲和浊积扇中各砂体微相的相互重叠构成区内最好的储层;该区沙三段沉积时期主要发育5套沉积体系,以冲积扇-扇三角洲-湖底扇沉积体系为主;在沙三段早中期,湖盆为水进沉积序列,西斜坡发育的扇三角洲和远岸浊积扇的砂体逐渐东移,展布范围逐渐扩大,而东陡坡扇三角洲中各亚相相带逐渐变窄,近岸浊积扇砂体呈长条状展布;到沙三段晚期,湖盆为水退沉积序列,西斜坡砂体展布范围、砂体厚度基本继承了前期的特征,东陡坡扇三角洲内各亚相相带逐渐变宽,并且向湖盆凹陷中心推进;沉积相带展布与迁移特征反映了古地形、边界同生断层、湖平面的相对变化以及物源的供给量等因素对沉积格局的控制。
The sandbodies in the 3rd Member of Shahejie Formation in Western Sag with a huge sedimentary thickness and a wide distribution are the most important reservoirs for petroleum accumulation in the deeply buried sequences in Liaohe basin.Based on core,drilling,logging and seismic data,seven types of sedimentary facies are identified in this area,i.e.,alluvial fan,fan delta,beachy turbidite fan,off-shore turbidite fan,fault trough gravity flow channel,slump turbidite fan and lacustrine facies,in which the multistory sandbodies in the fan delta and turbidite fan comprise the best reservoirs in the area.Five sets of depositional system are mainly developed during the sedimentation of the 3 rd Member of Shahejie Formation,with the alluvial fan-fan deltasublacustrine fan depositional system dominant;At the early-middle period of the 3Member of Shahejie Formation,the lake basin showed transgression depositional sequence.The sandbodies of fan delta and off-shore turbidite fan in western slope area gradually moved eastward and the distribution range expanded little by little,while in eastern steep slope area,the facies belts of each subfacies of fan delta narrowed down gradually and the sandbodies of beachy turbidite fan were distributed in belts;At the late period of the 3 rd Member of Shahejie Formation,the lake basin showed dereliction depositional sequence.The distribution range and thickness of sandbodies in the western slope area succeeded the characteristics of the earlier period on the whole,however,the facies belts of each subfacies of fan delta in eastern steep slope area widened gradually and went forward to the center of depressed area of the lake basin;The features of distribution and migration of sedimentary facies belts indicate that the sedimentary framework was controlled by several factors,including palaeotopography,boundary growth fault,relative change of lake surface and provenance efficiency.
The sandbodies in the 3rd Member of Shahejie Formation in Western Sag with a huge sedimentary thickness and a wide distribution are the most important reservoirs for petroleum accumulation in the deeply buried sequences in Liaohe basin.Based on core,drilling,logging and seismic data,seven types of sedimentary facies are identified in this area,i.e.,alluvial fan,fan delta,beachy turbidite fan,off-shore turbidite fan,fault trough gravity flow channel,slump turbidite fan and lacustrine facies,in which the multistory sandbodies in the fan delta and turbidite fan comprise the best reservoirs in the area.Five sets of depositional system are mainly developed during the sedimentation of the 3 rd Member of Shahejie Formation,with the alluvial fan-fan deltasublacustrine fan depositional system dominant;At the early-middle period of the 3Member of Shahejie Formation,the lake basin showed transgression depositional sequence.The sandbodies of fan delta and off-shore turbidite fan in western slope area gradually moved eastward and the distribution range expanded little by little,while in eastern steep slope area,the facies belts of each subfacies of fan delta narrowed down gradually and the sandbodies of beachy turbidite fan were distributed in belts;At the late period of the 3 rd Member of Shahejie Formation,the lake basin showed dereliction depositional sequence.The distribution range and thickness of sandbodies in the western slope area succeeded the characteristics of the earlier period on the whole,however,the facies belts of each subfacies of fan delta in eastern steep slope area widened gradually and went forward to the center of depressed area of the lake basin;The features of distribution and migration of sedimentary facies belts indicate that the sedimentary framework was controlled by several factors,including palaeotopography,boundary growth fault,relative change of lake surface and provenance efficiency.
引文
Gao Xianzhi,Li Xiaoguang,Li Jingsheng,et al.2007.Sandstonedistribution pattern and the exploration of lithologic reservoirsin the Es3 member of Xinglongtai area,Liaohe Depression[J].Petroleum Exploration and Development,34(2):187-190.(inChinese with English abstract)
Ju Juncheng,Zhang Fenglian,Yu Guofan,et al.2001.Depositionalcharacteristics and hydrocarbon accumulation of the third memberof Shahejie Formation reservoir in the southern West Depression,Liaohe Basin[J].Journal of Palaeogeography,3(1):63-70.(inChinese with English abstract)
Ju Juncheng,Zhou Ying,Yu Tiancai,et al.2002.Deep reservoircharacteristics in south of Western Sag,Liaohe Rifted Basin[J].Special Oil and Gas Reservoirs,9(2):20-22.(in Chinese withEnglish abstract)
Lai Shenghua,Yu Qian,Ma Jianming,et al.2004.Depositional system ofthe third member of the Shahejie Formation in Lengjia oilfield of theLiaohe Basin[J].Petroleum Geology&Experiment,26(5):469-473.(in Chinese with English abstract)
Liu Chengzhi,Huo Guangjun,Zhang Dongling,et al.1999.Fan-delta-Sublacustrine fan sedimentary models of S3 Member in Lengjiaoilfield in Liaohe Basin[J].Journal of Daqing Petroleum Institute,23(1):1-4.(in Chinese with English abstract)
Meng Yuanlin,Gao Jianjun,Liu Delai,et al.2006.Diagenetic faciesanalysis and high-quality reservoir prediction in the southern XibuDepression of the Bohaiwan Basin[J].Acta Sedimentologica Sinica,24(2):185-189.(in Chinese with English abstract)
Meng Yuanlin,Gao Jianjun,Niu Jiayu,et al.2006.Controls of the fan-delta sedimentary microfacies on the diageneses in the southof western Liaohe Depression,Bohai Bay Basin[J].PetroleumExploration and Development,33(1):36-38.(in Chinese withEnglish abstract)
Sun Hongbin and Zhang Fenglian.2002.Sandstone reservoirscharacteristics of the Paleogene in western Depression of LiaoheRift[J].Journal of Palaeogeography,4(3):83-92.(in Chinese withEnglish abstract)
Wu Chaorong and Du Chunyan.2001.The distal turbidite fan of ShahejieFormation,lower Paleogene in West Depression,Liaohe Basin[J].Journal of Chengdu University of Technology,28(3):267-272.(inChinese with English abstract)
Xin Quanlin,Liu Zerong,Jin Qiang,et al.1993.Tectono-Facies Analysisof Hydrocarbon Basins[M].Beijing:Geological Publishing House.(in Chinese)
Yu Guofan,Ning Songhua and Zhang Shouchang.2002.Reservoirsedimentary characteristics in Es3 to the Southwest Depression inLiaohe Basin[J].Journal of Jianghan Petroleum Institute,24(2):12-14.(in Chinese with English abstract)
Yuan Shukun,Wang Yingmin,Chen Zhenyan,et al.2007.Reservoirprediction of lower Sha3 sub-member in Chenjia Depression,LiaoheBasin[J].Geophysical Prospecting for Petroleum,46(5):488-495.(in Chinese with English abstract)
Zhang Jinliang,Yang Zicheng and Si Xueqiang.2004.Sedimentary faciesand evolution of the third member of Shahejie Formation in WestDepression of Liaohe basin[J].Northwestern Geology,37(4):7-13.(in Chinese with English abstract)
Zhang Wanxuan and Chi Yingliu.1994.Application of ContinentalSequence Stratigraphy[M].Dongying:Petroleum University Press.(in Chinese)
高先志,李晓光,李敬生,等.2007.兴隆台地区沙三段砂体发育模式与岩性油气藏勘探[J].石油勘探与开发,34(2):187-190.
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性分析[J].古地理学报,3(1):63-70.
鞠俊成,周鹰,于天才,等.2002.辽河断陷盆地西部凹陷南部地区深层储层特征[J].特种油气藏,9(2):20-22.
赖生华,余谦,麻建明,等.2004.辽河盆地冷家油田沙三段沉积体系[J].石油实验地质,26(5):469-473.
柳成志,霍广君,张冬玲,等.1999.辽河盆地西部凹陷冷家油田沙三段扇三角洲-湖底扇沉积模式[J].大庆石油学院学报,23(1):1-4.
孟元林,高建军,刘德来,等.2006.渤海湾盆地西部凹陷南段成岩相分析与优质储层预测[J].沉积学报,24(2):185-189.
孟元林,高建军,牛嘉玉,等.2006.扇三角洲体系沉积微相对成岩的控制作用——以辽河坳陷西部凹陷南段扇三角洲沉积体系为例[J].石油勘探与开发,33(1):36-38.
孙洪斌,张凤莲.2002.辽河断陷西部凹陷古近系砂岩储层[J].古地理学报,4(3):83-92.
吴朝容,杜春彦.2001.辽河油田西部凹陷沙河街组远岸浊积扇[J].成都理工学院学报,28(3):267-272.
信荃麟,刘泽容,金强,等.1993.油气盆地构造岩相分析[M].北京:地质出版社.
喻国凡,宁松华,张守昌.2002.辽河西部凹陷南部沙三段储层沉积特征[J].江汉石油学院学报,24(2):12-14.
袁书坤,王英民,陈振岩,等.2007.辽河盆地陈家洼陷沙三段下亚段有利储层预测[J].石油物探,46(5):488-495.
张金亮,杨子成,司学强.2004.辽河油田西部凹陷沙三段沉积相及演化[J].西北地质,37(4):7-13.
张万选,池英柳.1994.陆相层序地层学的应用[M].东营:石油大学出版社.
Ju Juncheng,Zhang Fenglian,Yu Guofan,et al.2001.Depositionalcharacteristics and hydrocarbon accumulation of the third memberof Shahejie Formation reservoir in the southern West Depression,Liaohe Basin[J].Journal of Palaeogeography,3(1):63-70.(inChinese with English abstract)
Ju Juncheng,Zhou Ying,Yu Tiancai,et al.2002.Deep reservoircharacteristics in south of Western Sag,Liaohe Rifted Basin[J].Special Oil and Gas Reservoirs,9(2):20-22.(in Chinese withEnglish abstract)
Lai Shenghua,Yu Qian,Ma Jianming,et al.2004.Depositional system ofthe third member of the Shahejie Formation in Lengjia oilfield of theLiaohe Basin[J].Petroleum Geology&Experiment,26(5):469-473.(in Chinese with English abstract)
Liu Chengzhi,Huo Guangjun,Zhang Dongling,et al.1999.Fan-delta-Sublacustrine fan sedimentary models of S3 Member in Lengjiaoilfield in Liaohe Basin[J].Journal of Daqing Petroleum Institute,23(1):1-4.(in Chinese with English abstract)
Meng Yuanlin,Gao Jianjun,Liu Delai,et al.2006.Diagenetic faciesanalysis and high-quality reservoir prediction in the southern XibuDepression of the Bohaiwan Basin[J].Acta Sedimentologica Sinica,24(2):185-189.(in Chinese with English abstract)
Meng Yuanlin,Gao Jianjun,Niu Jiayu,et al.2006.Controls of the fan-delta sedimentary microfacies on the diageneses in the southof western Liaohe Depression,Bohai Bay Basin[J].PetroleumExploration and Development,33(1):36-38.(in Chinese withEnglish abstract)
Sun Hongbin and Zhang Fenglian.2002.Sandstone reservoirscharacteristics of the Paleogene in western Depression of LiaoheRift[J].Journal of Palaeogeography,4(3):83-92.(in Chinese withEnglish abstract)
Wu Chaorong and Du Chunyan.2001.The distal turbidite fan of ShahejieFormation,lower Paleogene in West Depression,Liaohe Basin[J].Journal of Chengdu University of Technology,28(3):267-272.(inChinese with English abstract)
Xin Quanlin,Liu Zerong,Jin Qiang,et al.1993.Tectono-Facies Analysisof Hydrocarbon Basins[M].Beijing:Geological Publishing House.(in Chinese)
Yu Guofan,Ning Songhua and Zhang Shouchang.2002.Reservoirsedimentary characteristics in Es3 to the Southwest Depression inLiaohe Basin[J].Journal of Jianghan Petroleum Institute,24(2):12-14.(in Chinese with English abstract)
Yuan Shukun,Wang Yingmin,Chen Zhenyan,et al.2007.Reservoirprediction of lower Sha3 sub-member in Chenjia Depression,LiaoheBasin[J].Geophysical Prospecting for Petroleum,46(5):488-495.(in Chinese with English abstract)
Zhang Jinliang,Yang Zicheng and Si Xueqiang.2004.Sedimentary faciesand evolution of the third member of Shahejie Formation in WestDepression of Liaohe basin[J].Northwestern Geology,37(4):7-13.(in Chinese with English abstract)
Zhang Wanxuan and Chi Yingliu.1994.Application of ContinentalSequence Stratigraphy[M].Dongying:Petroleum University Press.(in Chinese)
高先志,李晓光,李敬生,等.2007.兴隆台地区沙三段砂体发育模式与岩性油气藏勘探[J].石油勘探与开发,34(2):187-190.
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性分析[J].古地理学报,3(1):63-70.
鞠俊成,周鹰,于天才,等.2002.辽河断陷盆地西部凹陷南部地区深层储层特征[J].特种油气藏,9(2):20-22.
赖生华,余谦,麻建明,等.2004.辽河盆地冷家油田沙三段沉积体系[J].石油实验地质,26(5):469-473.
柳成志,霍广君,张冬玲,等.1999.辽河盆地西部凹陷冷家油田沙三段扇三角洲-湖底扇沉积模式[J].大庆石油学院学报,23(1):1-4.
孟元林,高建军,刘德来,等.2006.渤海湾盆地西部凹陷南段成岩相分析与优质储层预测[J].沉积学报,24(2):185-189.
孟元林,高建军,牛嘉玉,等.2006.扇三角洲体系沉积微相对成岩的控制作用——以辽河坳陷西部凹陷南段扇三角洲沉积体系为例[J].石油勘探与开发,33(1):36-38.
孙洪斌,张凤莲.2002.辽河断陷西部凹陷古近系砂岩储层[J].古地理学报,4(3):83-92.
吴朝容,杜春彦.2001.辽河油田西部凹陷沙河街组远岸浊积扇[J].成都理工学院学报,28(3):267-272.
信荃麟,刘泽容,金强,等.1993.油气盆地构造岩相分析[M].北京:地质出版社.
喻国凡,宁松华,张守昌.2002.辽河西部凹陷南部沙三段储层沉积特征[J].江汉石油学院学报,24(2):12-14.
袁书坤,王英民,陈振岩,等.2007.辽河盆地陈家洼陷沙三段下亚段有利储层预测[J].石油物探,46(5):488-495.
张金亮,杨子成,司学强.2004.辽河油田西部凹陷沙三段沉积相及演化[J].西北地质,37(4):7-13.
张万选,池英柳.1994.陆相层序地层学的应用[M].东营:石油大学出版社.
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