鄂尔多斯盆地富县地区长8油层组致密油成藏主控因素分析
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摘要
基于大量岩心分析数据,从研究鄂尔多斯盆地富县地区延长组长8致密油性质、赋存空间入手,综合分析该区致密油成藏主控因素。富县长8段细砂岩含低密度、低黏度可流动致密油,且多聚集在微米级孔喉中。致密油成藏主要受控于广泛发育的长7、长9烃源岩,"源夹储、储内夹源"成藏模式,水下分流河道微相环境下形成的复合叠置沉积砂体优质储层三大因素。根据上述致密油藏控制因素,结合目前勘探实践,预测出富县地区长8致密油6个潜力区块,为下一步勘探提供依据。
Based on the massive analytical data of core, we comprehensively researched on the main controlling factors of the tight oil reservoir according to the property and the storage space of the tight oil formation in Chang-8 reservoir of Fu County in Ordos Basin. Fine sandstone in Chang-8 reservoir contained the movable tight oil with low density and low viscosity, and mostly concentrated in micron-sized pore throats. The accumulation of tight oil was mainly controlled by three factors that were the source rocks of Chang-7 and Chang-9 reservoirs, the main accumulation mode of "the reservoir existed in the resource, and the resource existed in the reservoir", and the high quality reservoir with composite superimposed sedimentary sand body formed in the underwater distributary channel microfacies environment. Based on the controlling factors above, and combined with the current exploration results, we predicted 6 potential blocks of Chang-8 tight oil reservoir in Fu County, and provided the basis for the further exploration.
Based on the massive analytical data of core, we comprehensively researched on the main controlling factors of the tight oil reservoir according to the property and the storage space of the tight oil formation in Chang-8 reservoir of Fu County in Ordos Basin. Fine sandstone in Chang-8 reservoir contained the movable tight oil with low density and low viscosity, and mostly concentrated in micron-sized pore throats. The accumulation of tight oil was mainly controlled by three factors that were the source rocks of Chang-7 and Chang-9 reservoirs, the main accumulation mode of "the reservoir existed in the resource, and the resource existed in the reservoir", and the high quality reservoir with composite superimposed sedimentary sand body formed in the underwater distributary channel microfacies environment. Based on the controlling factors above, and combined with the current exploration results, we predicted 6 potential blocks of Chang-8 tight oil reservoir in Fu County, and provided the basis for the further exploration.
引文
[1]姚泾利,赵彦德,邓秀芹,等.鄂尔多斯盆地延长组致密油成藏控制因素[J].吉林大学学报(地球科学版),2015,45(4):983-992.
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[3]王宝萍,崔维兰,张凤奇,等.鄂尔多斯盆地东南部富县-黄龙地区长8油层组勘探潜力分析[J].非常规油气,2015,2(3):27-33.
[4]杨华,梁晓伟,牛小兵,等.陆相致密油形成地质条件及富集主控因素--以鄂尔多斯盆地三叠系延长组7段为例[J].石油探勘与开发,2017,44(1):12-20.
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[9]牛小兵,冯胜斌,刘飞,等.低渗透致密砂岩储层汇总石油微观赋存状态及油源关系[J].石油与天然气地质,2013,34(3):288-292.
[10]白松涛,程道解,万金彬,等.砂岩岩石核磁共振T2谱定量表征[J].石油学报,2016,37(3):382-341.
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[12]Li Delu,Li Rongxi,Zhu Zengwu.Origin of organic matter andpaleo-sedimentary environment reconstruction of the Triassic oil shale in Tongchuan City,southern Ordos Basin(China)[J].Fuel,2017,208:223-235
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[15]郭艳琴,李文厚,陈全红,等.鄂尔多斯盆地安塞-富县地区延长组-延安组原油地球化学特征及油源对比[J].石油与天然气地质,2006,27(2):218-224.
[16]骆垠山,张哨楠,罗小明,等.鄂尔多斯盆地富县地区延长组原油生物标志物特征及油源对比[J].科技导报,2016,34(2):129-134.
[17]陈飞,胡光义,孙立春,等.鄂尔多斯盆地富县地区上三叠统延长组砂质碎屑流沉积特征及其油气勘探意义[J].沉积学报,2012,30(6):1042-1052.
[18]田媛,钟建华,王书宝,等.鄂尔多斯盆地富县探区三叠系延长组震积岩及其地质意义[J].古地理学报,2015,17(4):541-552.
[19]吴立群,焦养泉,杨琴,等.鄂尔多斯盆地富县地区延长组物源体系分析[J].沉积学报,2010,28(3):434-440.
[20]黄德才.鄂尔多斯盆地富县地区延长组长6-长8沉积体系研究[D].成都:成都理工大学,2016:9-17.
[2]周翔,何生,刘萍,等.鄂尔多斯盆地代家坪地区长6致密油储层孔隙结构特征及分类评价[J].地学前缘,2016,23(3):253-265.
[3]王宝萍,崔维兰,张凤奇,等.鄂尔多斯盆地东南部富县-黄龙地区长8油层组勘探潜力分析[J].非常规油气,2015,2(3):27-33.
[4]杨华,梁晓伟,牛小兵,等.陆相致密油形成地质条件及富集主控因素--以鄂尔多斯盆地三叠系延长组7段为例[J].石油探勘与开发,2017,44(1):12-20.
[5]尤源,牛小兵,冯胜斌,等.鄂尔多斯盆地延长组长7致密油储层微观孔隙特征研究[J].中国石油大学学报(自然科学版),2014,38(6):18-23.
[6]樊建明,杨子清,李卫兵,等.鄂尔多斯盆地长7致密油水平井体积压裂开发效果评价及认识[J].中国石油大学学报(自然科学版),2015,39(4):103-110.
[7]任战利,李文厚,梁宇,等.鄂尔多斯盆地东南部延长组致密油成藏条件及主控因素[J].石油与天然气地质,2014,35(2):190-198.
[8]贾承造,邹才能,李建忠,等.中国致密油评价标准、主要类型、基本特征及资源前景[J].石油学报,2012,33(3):343-350.
[9]牛小兵,冯胜斌,刘飞,等.低渗透致密砂岩储层汇总石油微观赋存状态及油源关系[J].石油与天然气地质,2013,34(3):288-292.
[10]白松涛,程道解,万金彬,等.砂岩岩石核磁共振T2谱定量表征[J].石油学报,2016,37(3):382-341.
[11]邱欣卫,刘池洋.鄂尔多斯盆地延长组湖盆充填类型与优质烃源岩发育[J].地球学报,2014,35(1):101-109.
[12]Li Delu,Li Rongxi,Zhu Zengwu.Origin of organic matter andpaleo-sedimentary environment reconstruction of the Triassic oil shale in Tongchuan City,southern Ordos Basin(China)[J].Fuel,2017,208:223-235
[13]蔡劲,王桂成,张震.鄂尔多斯盆地富县地区延长组长8油藏油源对比研究[J].沉积与特提斯地质,2014,34(4):68-74.
[14]张海林.鄂尔多斯盆地富县探区三叠系延长组长8致密油层综合研究[D].西安:西北大学,2016:87-93.
[15]郭艳琴,李文厚,陈全红,等.鄂尔多斯盆地安塞-富县地区延长组-延安组原油地球化学特征及油源对比[J].石油与天然气地质,2006,27(2):218-224.
[16]骆垠山,张哨楠,罗小明,等.鄂尔多斯盆地富县地区延长组原油生物标志物特征及油源对比[J].科技导报,2016,34(2):129-134.
[17]陈飞,胡光义,孙立春,等.鄂尔多斯盆地富县地区上三叠统延长组砂质碎屑流沉积特征及其油气勘探意义[J].沉积学报,2012,30(6):1042-1052.
[18]田媛,钟建华,王书宝,等.鄂尔多斯盆地富县探区三叠系延长组震积岩及其地质意义[J].古地理学报,2015,17(4):541-552.
[19]吴立群,焦养泉,杨琴,等.鄂尔多斯盆地富县地区延长组物源体系分析[J].沉积学报,2010,28(3):434-440.
[20]黄德才.鄂尔多斯盆地富县地区延长组长6-长8沉积体系研究[D].成都:成都理工大学,2016:9-17.