鄂尔多斯盆地什社地区延长组长3_1储层特征及评价
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摘要
本文依据岩石薄片、铸体薄片、物性分析、压汞曲线等资料,对鄂尔多斯盆地什社地区延长组长3_1储层特征进行了深入的研究。研究分析认为:什社地区长31储层主要为长石岩屑砂岩和岩屑长石砂岩,属于低孔—特低孔、特低渗—超低渗储层,储集空间主要为粒间孔和长石溶孔。储层的分布主要受沉积相带的控制,后期成岩作用对储层的储集性能也有一定的改造。综合储层分类评价标准,将研究区储层分为3类,什社地区长3_1油层组以Ⅰ类、Ⅱ类储层为主。
Based on the data of rock thin sections,casting thin sections,physical property analysis and intrusive mercury curves,the characteristics of Chang 31 reservoirs of Yanchang group in Shishe area of Ordos Basin were studied. The results show that the reservoirs of Chang 3_1 in Shishe area are mainly composed of feldspar lithic sandstone and lithic feldspar sandstone,belonging to low-ultra low porosity and low-ultra low permeability reservoir.The main pore types are intergranular pore and feldspar dissolved pore. The distribution of reservoirs is mainly controlled by sedimentary facies and the diagenesis afterwards also affects the reservoir properties. According to the evaluation criterion,the reservoirs of the study area can be divided into three types. Chang 3_1 reservoir group in Shishe area mainly are type Ⅰ reservoir and type Ⅱ reservoir.
Based on the data of rock thin sections,casting thin sections,physical property analysis and intrusive mercury curves,the characteristics of Chang 31 reservoirs of Yanchang group in Shishe area of Ordos Basin were studied. The results show that the reservoirs of Chang 3_1 in Shishe area are mainly composed of feldspar lithic sandstone and lithic feldspar sandstone,belonging to low-ultra low porosity and low-ultra low permeability reservoir.The main pore types are intergranular pore and feldspar dissolved pore. The distribution of reservoirs is mainly controlled by sedimentary facies and the diagenesis afterwards also affects the reservoir properties. According to the evaluation criterion,the reservoirs of the study area can be divided into three types. Chang 3_1 reservoir group in Shishe area mainly are type Ⅰ reservoir and type Ⅱ reservoir.
引文
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[14]罗静兰,刘小洪,林潼,等.成岩作用与油气侵位对鄂尔多斯盆地延长组砂岩储层物性的影响[J].地质学报,2006,80(5):664~673.LUO Jinglan,LIU Xiaohong,LIN Tong,et al.Impact of diagenesis and Hydrocarbon emplacement on sandstone reservoir quality of the Yanchang Formation(Upper Triassic)in the Ordos Basin[J].Acta Geologica Sinica,2006,80(5):664~673.
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[17]王琪,史基安,薛莲花,等.碎屑储集岩成岩演化过程中流体-岩石相互作用特征——以塔里木盆地西南坳陷地区为例[J].沉积学报,1999,17(4):584~590.WANG Qi,SHI Ji’an,XUE Lianhua,et al.Characteristics of Fluid-Rock interaction in clastic reservoir controlled by evolution of diagenetic environment——Taking the southwest depression of Tarim basin as an example[J].Acta Sedimentologica Sinica,1999,17(4):584~590.
[18]赵靖舟,吴少波,武富礼.论低渗透储层的分类与评价标准——以鄂尔多斯盆地为例[J].岩性油气藏,2007,19(3):28~31,53.ZHAO Jingzhou,WU Shaobo,WU Fuli.The classification and evaluation criterion of low permeability reservoir:An example from Ordos Basin[J].Lithologic Reservoirs,2007,19(3):28~31,53.
[19]李南星,刘林玉,郑锐,等.鄂尔多斯盆地镇泾地区超低渗透储层评价[J].岩性油气藏,2011,23(2):41~45.LI Nanxing,LIU Linyu,ZHENG Rui,et al.Super-low permeability reservoir evaluation in Zhenjing area,Ordos Basin[J].Lithologic Reservoirs,2011,23(2):41~45.
[20]杨正明,张英芝,郝明强,等.低渗透油田储层综合评价方法[J].石油学报,2006,27(2):64~67.YANG Zhengming,ZHANG Yingzhi,HAO Mingqiang,et al.Comprehensive evaluation of reservoir in low-permeability oilfields[J].Acta Petrolei Sinica,2006,27(2):64~67.
[21]刁帆,文志刚.鄂尔多斯盆地胡尖山油田延长组长4+52储层特征及综合评价[J].岩性油气藏,2011,23(2):53~58,79.DIAO Fan,WEN Zhigang.Characteristics and comprehensive evaluation of Chang 4+52reservoir in Hujianshan Oilfield,Ordos Basin[J].Lithologic Reservoirs,2011,23(2):53~58,79.
[22]于雷,陈建文,金绍臣,等.鄂尔多斯盆地彭阳地区延安组、长3油层组储层特征及评价[J].岩性油气藏,2012,24(6):49~53,59.YU Lei,CHEN Jianwen,JIN Shaochen,et al.Reservoir characteristics and evaluation of Yan’an Formation and Chang 3oil reservoir set in Pengyang area,Ordos Basin[J].Lithologic Reservoirs,2012,24(6):49~53,59.
[2]张林炎,范坤,刘进东,等.鄂尔多斯盆地镇原-泾川地区三叠系延长组构造裂缝分布定量预测[J].地质力学学报,2006,12(4):476~484.ZHANG Linyan,FAN Kun,LIU Jindong,et al.Quantitative prediction of distribution of tectonic fractures in the Yanchang formation in the Zhenyuan-Jingchuan area,Ordos Basin[J].Journal of Geomechanics,2006,12(4):476~484.
[3]李文厚,庞军刚,曹红霞,等.鄂尔多斯盆地晚三叠世延长期沉积体系及岩相古地理演化[J].西北大学学报(自然科学版),2009,39(3):501~506.LI Wenhou,PANG Jungang,CAO Hongxia,et al.Depositional system and paleogeographic evolution of the late Triassic Yanchang Stage in Ordos Basin[J].Journal of Northwest University(Natural Science Edition),2009,39(3):501~506.
[4]李凤杰,王多云,张庆龙,等.鄂尔多斯盆地陇东地区延长组沉积相特征与层序地层分析[J].沉积学报,2006,24(4):549~554.LI Fengjie,WANG Duoyun,ZHANG Qinglong,et al.Sedimentary facies characteristic and sequence stratigraphy analysis of Yanchang Formation in Longdong Area,Ordos Basin[J].Acta Sedimentologica Sinica,2006,24(4):549~554.
[5]曾允孚夏文杰.沉积岩石学[M].北京:地质出版社,1986,112~115.ZENG Yunfu,XIA Wenjie.Sedimentary petrology[M].Beijing:Geological Press,1986,112~115.
[6]钟大康,周立建,孙海涛,等.储层岩石学特征对成岩作用及孔隙发育的影响——以鄂尔多斯盆地陇东地区三叠系延长组为例[J].石油与天然气地质,2012,33(6):890~899.ZHONG Dakang,ZHOU Lijian,SUN Haitao,et al.Influences of petrologic features on diagenesis and pore development:an example from the Triassic Yanchang Formation in Longdong area,Ordos Basin[J].Oil&Gas Geology,2012,33(6):890~899.
[7]李威,文志刚.陕北马岭地区延长组长71储层特征及评价[J].沉积与特提斯地质,2013,33(3):40~47.LI Wei,WEN Zhigang.Characteristics and assessment of the Chang-71reservoirs from the Yanchang Formation in the Maling region,northern Shaanxi[J].Sedimentary Geology and Tethyan Geology,2013,33(3):40~47.
[8]李道品.低渗透砂岩油田开发[M].北京:石油工业出版社,1997,329~332.LI Daopin,et al.The development of the low permeability sandstone oil field[M].Beijing:Petroleum Industry Press,1997,329~332.
[9]杨华,刘自亮,朱筱敏,等.鄂尔多斯盆地西南缘上三叠统延长组物源与沉积体系特征[J].地学前缘,2013,20(2):10~18.YANG Hua,LIU Ziliang,ZHU Xiaomin,et al.Provenance and depositional systems of the Upper Triassic Yanchang Formation in the southwestern Ordos Basin,China[J].Earth Science Frontiers,2013,20(2):10~18.
[10]邓秀芹,付金华,姚泾利,等.鄂尔多斯盆地中及上三叠统延长组沉积相与油气勘探的突破[J].古地理学报,2011,13(4):443~455.DENG Xiuqin,FU Jinhua,YAO Jingli,et al.Sedimentary facies of the Middle-Upper Triassic Yanchang Formation in Ordos Basin and breakthrough in petroleum exploration[J].Journal of Palaeogeography,2011,13(4):443~455.
[11]白玉彬,张乾.鄂尔多斯盆地定边油田长2低渗砂岩储层特征及评价[J].特种油气藏,2011,18(5):56~59.BAI Yubin,ZHANG Qian.Characteristics and assessment of the Chang 2 low permeability sandstone reservoir in the Dingbian oilfield of Ordos Basin[J].Special Oil and Gas Reservoirs,2011,18(5):56~59.
[12]窦伟坦,田景春,王峰,等.鄂尔多斯盆地长6油层组储集砂岩成岩作用及其对储层性质的影响[J].成都理工大学学报(自然科学版),2009,36(2):153~158.Dou Weitan,TIAN Jingchun,WANG Feng,et al.Diagenesis and its influence on the reservoir quality of Member 6 of the Upper Triassic Yanchang Formation oil reservoirs in Ordos Basin,China[J].Journal of Chengdu University of Technology(Science&Technology Edition),2009,36(2):153~158.
[13]朱世发,徐黎明,朱筱敏,等.鄂尔多斯盆地陇东地区延长组长4+5致密砂岩储层成岩作用特征[J].岩性油气藏,2014,26(3):22~27.ZHU Shifa,XU Liming,ZHU Xiaomin,et al.Diagenetic characteristics of tight sandstone of Chang 4+5 reservoir in Longdong area,Ordos Basin[J].Lithologic Reservoirs,2014,26(3):22~27.
[14]罗静兰,刘小洪,林潼,等.成岩作用与油气侵位对鄂尔多斯盆地延长组砂岩储层物性的影响[J].地质学报,2006,80(5):664~673.LUO Jinglan,LIU Xiaohong,LIN Tong,et al.Impact of diagenesis and Hydrocarbon emplacement on sandstone reservoir quality of the Yanchang Formation(Upper Triassic)in the Ordos Basin[J].Acta Geologica Sinica,2006,80(5):664~673.
[15]柳益群,李文厚.陕甘宁盆地东部上三叠统含油长石砂岩的成岩特点及孔隙演化[J].沉积学报,1996,14(3):87~96.LIU Yiqun,LI Wenhou.Diagenetic characteristics and porosity evolution of the oil-bearing arkoses in the Upper Triassic in the eastern Shan-Gan-Ning Basin[J].Acta Sedimentologica Sinica,1996,14(3):87~96.
[16]张金亮,司学强,梁杰,等.陕甘宁盆地庆阳地区长8油层砂岩成岩作用及其对储层性质的影响[J].沉积学报,2004,22(2):225~233.ZHANG Jinliang,SI Xueqiang,LIANG Jie,et al.Diagenesis of lacustrine deltaic sandstones and its impact on reservoir quality[J].Acta Sedimentologica Sinica,2004,22(2):225~233.
[17]王琪,史基安,薛莲花,等.碎屑储集岩成岩演化过程中流体-岩石相互作用特征——以塔里木盆地西南坳陷地区为例[J].沉积学报,1999,17(4):584~590.WANG Qi,SHI Ji’an,XUE Lianhua,et al.Characteristics of Fluid-Rock interaction in clastic reservoir controlled by evolution of diagenetic environment——Taking the southwest depression of Tarim basin as an example[J].Acta Sedimentologica Sinica,1999,17(4):584~590.
[18]赵靖舟,吴少波,武富礼.论低渗透储层的分类与评价标准——以鄂尔多斯盆地为例[J].岩性油气藏,2007,19(3):28~31,53.ZHAO Jingzhou,WU Shaobo,WU Fuli.The classification and evaluation criterion of low permeability reservoir:An example from Ordos Basin[J].Lithologic Reservoirs,2007,19(3):28~31,53.
[19]李南星,刘林玉,郑锐,等.鄂尔多斯盆地镇泾地区超低渗透储层评价[J].岩性油气藏,2011,23(2):41~45.LI Nanxing,LIU Linyu,ZHENG Rui,et al.Super-low permeability reservoir evaluation in Zhenjing area,Ordos Basin[J].Lithologic Reservoirs,2011,23(2):41~45.
[20]杨正明,张英芝,郝明强,等.低渗透油田储层综合评价方法[J].石油学报,2006,27(2):64~67.YANG Zhengming,ZHANG Yingzhi,HAO Mingqiang,et al.Comprehensive evaluation of reservoir in low-permeability oilfields[J].Acta Petrolei Sinica,2006,27(2):64~67.
[21]刁帆,文志刚.鄂尔多斯盆地胡尖山油田延长组长4+52储层特征及综合评价[J].岩性油气藏,2011,23(2):53~58,79.DIAO Fan,WEN Zhigang.Characteristics and comprehensive evaluation of Chang 4+52reservoir in Hujianshan Oilfield,Ordos Basin[J].Lithologic Reservoirs,2011,23(2):53~58,79.
[22]于雷,陈建文,金绍臣,等.鄂尔多斯盆地彭阳地区延安组、长3油层组储层特征及评价[J].岩性油气藏,2012,24(6):49~53,59.YU Lei,CHEN Jianwen,JIN Shaochen,et al.Reservoir characteristics and evaluation of Yan’an Formation and Chang 3oil reservoir set in Pengyang area,Ordos Basin[J].Lithologic Reservoirs,2012,24(6):49~53,59.