塔里木盆地哈拉哈塘地区东河砂岩段成岩作用及对孔渗影响
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摘要
通过岩心观察、薄片鉴定、扫描电镜、铸体薄片、阴极发光及物性资料分析,对塔里木盆地哈拉哈塘地区东河砂岩段深埋优质储层的成岩作用、孔隙成因及对孔渗影响进行研究。结果表明,东河砂岩处于中成岩A_2—B期,碳酸盐胶结物的胶结作用及溶蚀作用是重要的成岩事件。早期碳酸盐胶结作用、低的地温梯度和短期的深埋藏能够增强储层抗压实能力,保留更多原生孔隙;而晚期碳酸盐胶结能够填充有机酸溶解颗粒产生的粒间溶孔和粒内溶孔,同时晚期碳酸盐胶结物再溶蚀又能够形成次生孔隙。在纵向上及平面上碳酸盐胶结物含量与储层孔隙度和渗透率为负相关关系,据此可对储层物性进行预测和评价。
Based on the analyses of core observation,thin slice identification,scanning electron microscope,cast thin slice,cathodoluminescence and physical property data,the diagenesis,pore formation and its effect on pore and permeability of Donghe sandstone,deep buried high quality reservoir in Hanilcatam area of Tarim Basin are studied.Donghe sandstone is in the stage of the middle diagenesis A_2-B.The cementation and dissolution of carbonate cements are important diagenetic events.Carbonate cementation of early diagenesis,low geothermal gradient and short term deep burial can enhance the anti-compacting capacity of the reservoir,which is good for keeping more primary pores.The carbonate cementation of later diagenesis can fill in intergranular pores and intragranular pores produced by organic acid dissolving particles,and the later dissolution of carbonate cements can also form secondary pores.The content of carbonate cement is negatively correlated with the porosity and permeability of the reservoir vertically and in the plane,so using the content of carbonate cement can predict and evaluate the physical property of the reservoir.
Based on the analyses of core observation,thin slice identification,scanning electron microscope,cast thin slice,cathodoluminescence and physical property data,the diagenesis,pore formation and its effect on pore and permeability of Donghe sandstone,deep buried high quality reservoir in Hanilcatam area of Tarim Basin are studied.Donghe sandstone is in the stage of the middle diagenesis A_2-B.The cementation and dissolution of carbonate cements are important diagenetic events.Carbonate cementation of early diagenesis,low geothermal gradient and short term deep burial can enhance the anti-compacting capacity of the reservoir,which is good for keeping more primary pores.The carbonate cementation of later diagenesis can fill in intergranular pores and intragranular pores produced by organic acid dissolving particles,and the later dissolution of carbonate cements can also form secondary pores.The content of carbonate cement is negatively correlated with the porosity and permeability of the reservoir vertically and in the plane,so using the content of carbonate cement can predict and evaluate the physical property of the reservoir.
引文
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[2] Zhang Huiliang,Yang Haijun,Shou Jianfeng,et al.Sedimentary periods of Donghe sandstone and hydrocarbon exploration in Tarim Basin[J].Acta Petrolei Sinica,2009,30(6):835-842.张惠良,杨海军,寿建峰,等.塔里木盆地东河砂岩沉积期次及油气勘探[J].石油学报,2009,30(6):835-842.
[3] Shen Yinmin,Jia Jinhua,Qi Yingmin,et al.Sedimentary facies of Donghe sandstone in the Upper Devonian-Lower Carboniferous and discovery of Hadexun Oilfield in Tarim Basin[J].Journal of Palaeogeography,2011,13(3):279-286.申银民,贾进华,齐英敏,等.塔里木盆地上泥盆统—下石炭统东河砂岩沉积相与哈得逊油田的发现[J].古地理学报,2011,13(3):279-286.
[4] Zhu Xiaomin,Zhang Qiang,Lv Xueyan,et al.Comparison of the sedimentary characteristics of the Donghe sandstone section between the Tabei and Tazhong areas,Tarim basin[J].Geology in China,2005,32(4):648-653.朱筱敏,张强,吕雪雁,等.塔里木盆地塔北与塔中地区东河砂岩段沉积特征对比[J].中国地质,2005,32(4):648-653.
[5] Jia Jinhua,Shen Yinmin.Parasequence set division,lithofacies paleogeography and sandbody distribution of Donghe sandstone member in Tarim Basin[J].Acta Petrolei Sinica,2017,38(2):135-147.贾进华,申银民.塔里木盆地东河砂岩段准层序组特征及岩相古地理与砂体分布[J].石油学报,2017,38(2):135-147.
[6] Fang Qian,Xu Huaimin,Yin Nanxin,et al.Re-understanding of stratigraphic sequence boundary of Donghe sandstone interval in Central Tarim area and the significance of unconformities for hydrocarbon accumulations[J].Natural Gas Geoscience,2015,26(6):1035-1045.房倩,徐怀民,尹楠鑫,等.塔中地区东河砂岩段层序界面再认识及不整合对油气成藏的作用[J].天然气地球科学,2015,26(6):1035-1045.
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[8] Zhong Dakang,Zhu Xiaomin,Zhou Xinyuan,et al.Diagenesis and controlling factors of reservoir quality of Dovenian Donghe sandstones in central Tarim Basin[J].Journal of Palaeogeography,2003,5(3):378-387.钟大康,朱筱敏,周新源,等.塔里木盆地中部泥盆系东河砂岩成岩作用与储集性能控制因素[J].古地理学报,2003,5(3):378-387.
[9] Zhou Xinyuan,Yang Haijun,Hu Jianfeng,et al.Cases of discovery and exploration of marine fields in China,Part 13:Donghetang sandstone oilfield in Tarim Basin[J].Marine Origin Petroleum Geology,2010,15(1):73-78.周新源,杨海军,胡剑风,等.中国海相油气田勘探实例之十三:塔里木盆地东河塘海相砂岩油田勘探与发现[J].海相油气地质,2010,15(1):73-78.
[10] Zhou Xinyuan,Yang Haijun,Cai Zhenzhong,et al.Cases of discovery and exploration of marine fields in China,Part 10:Hadexun sandstone oilfield in Tarim Basin[J].Marine Origin Petroleum Geology,2007,12(4):51-60.周新源,杨海军,蔡振忠,等.中国海相油气田勘探实例之十:塔里木盆地哈得逊海相砂岩油田的勘探与发现[J].海相油气地质,2007,12(4):51-60.
[11] Chen Xiuyan,Luo Ping,Jia Jinhua,et al.Provenances and sedimentary facies distribution in Carboniferous Donghe sandstone in the central part of northern Tarim Basin[J].Marine Origin Petroleum Geology,2013,18(2):23-30.陈秀艳,罗平,贾进华,等.塔北中部石炭系东河砂岩物源及沉积体系[J].海相油气地质,2013,18(2):23-30.
[12] Zhao Wei.Solid-fluid Interaction and Reservoir Prediction of Beach-bar Sandstone of the Upper Part of the Forth Member of Paleogene Shahejie Formation,in Dongying Depression[D].Beijing:China University of Geosciences,2011:24-42.赵伟.东营凹陷古近系沙四上亚段滩坝砂体固体-流体相互作用与有效储层预测[D].北京:中国地质大学(北京),2011:24-42.
[13] Zhang Minqiang,Huang Sijing,Wu Zhixuan,et al.Carbonate cements and their formation mechanism in Palaeogene sandstones of Lishui Sag,East China Sea Basin[J].Journal of Chengdu University of Technology:Science&Technology Edition,2007,34(3):259-265.张敏强,黄思静,吴志轩,等.东海盆地丽水凹陷古近系储层砂岩中碳酸盐胶结物及形成机制[J].成都理工大学学报:自然科学版,2007,34(3):259-265.
[14] Zhu Shifa,Zhu Xiaomin,Liu Zhenyu,et al.Jurassic diagenesis and its control on reservoir quality in Ke-Bai area,northwestern margin of Junggar Basin[J].Geological Journal of China Universities,2008,14(2):172-179.朱世发,朱筱敏,刘振宇,等.准噶尔盆地西北缘克-百地区侏罗系成岩作用及其对储层质量的影响[J].高校地质学报,2008,14(2):172-179.
[15] Hao Haiyan.Study on Reservoir Characteristic of Donghe Sandstone Member,in Tarim Basin[D].Chengdu:Southwest Petroleum Institute,2003:42-48.郝海燕.塔里木盆地巴楚组东河砂岩段储层特征研究[D].成都:西南石油学院,2003:42-48.
[16] Zhu Xiaomin,Mi Lijun,Zhong Dakang,et al.Paleogene diagenesis and its control on reservoir quality in Jiyang Depression[J].Journal of Palaeogeography,2006,8(3):295-304.朱筱敏,米立军,钟大康,等.济阳坳陷古近系成岩作用及其对储层质量的影响[J].古地理学报,2006,8(3):295-304.
[17] Zhou Bo,Jia Jinhua,Chen Xiuyan.Petroleum migration patterns of Donghe sandstone secondary hydrocarbon reservoir in north Tarim Basin and their implications for the future exploration[J].Journal of Southwest Petroleum University:Science&Technology Edition,2013,35(4):25-33.周波,贾进华,陈秀艳.塔北东河砂岩次生油藏油气运聚模式及启示[J].西南石油大学学报:自然科学版,2013,35(4):25-33.
[18] Yao Jingli,Wang Qi,Zhang Rui,et al.Origin and spatial distribution of carbonate cements in Yanchang Fm.(Triassic)sandstones within the lacustrine center of Ordos Basin,NW China[J].Natural Gas Geoscience,2011,22(6):943-949.姚泾利,王琪,张瑞,等.鄂尔多斯盆地中部延长组砂岩中碳酸盐胶结物成因与分布规律研究[J].天然气地球科学,2011,22(6):943-949.
[19] Sun Guoqiang,Wang Haifeng,Zou Kaizheng,et al.Characteristics and significance of carbon and oxygen isotopic compositions of carbonate cements in Jiulongshan region,north edge of Qaidam Basin[J].Natural Gas Geoscience,2014,25(9):1358-1363.孙国强,王海峰,邹开真,等.柴北缘九龙山地区侏罗系砂岩中碳酸盐胶结物特征及意义[J].天然气地球科学,2014,25(9):1358-1363.
[20] Liu Yongfu,Zhao Jianhua,Fan Qiuhai,et al.Diagenesis and its control factors of Donghe sandstone in Hanilcatam Depresstion of Tabei Uplift[J].Geoscience,2014,28(3):635-643.刘永福,赵建华,范秋海,等.塔北隆起哈拉哈塘凹陷东河砂岩成岩作用及其控制因素[J].现代地质,2014,28(3):635-643.
[21] Guo Hongli,Wang Darui.The isotopic composition and genesis analysis of carbonate cement in sandstone reservoir,Tarim hydrocarbon area[J].Petroleum Exploration and Development,1999,26(3):31-32.郭宏莉,王大锐.塔里木油气区砂岩储集层碳酸盐胶结物的同位素组成与成因分析[J].石油勘探与开发,1999,26(3):31-32.
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