Characteristics and Main Enrichment Controlling Factors of Chang 7 Tight Oil in Xunyi-Yijun Area,Ordos Basin
-
摘要: 利用岩心、测录井、分析化验及试油试采等资料，从岩石学特征、储集性能、流体性质、砂岩分布特征等入手，分析工区内致密油地质特征与富集主控因素。认为工区内延长组长7油层组浊积砂岩发育，属致密储层，储集空间以小孔隙为主；原油性质好，为低密度、低黏度、低凝固点的轻质原油，具有低含硫、可流动性强等特点。同时，长7烃源岩分布广，厚度大，有机质丰度高，类型好，Ro平均为0.78%，已进入成熟阶段，为致密油形成提供了丰富的物质基础；长71和长72亚油层砂岩厚度大、分布广，是致密油富集的关键；断层的发育对致密油富集起破坏作用，良好的保存条件是该区致密油聚集成藏的必要条件。Abstract: Based on the data of core, well logging and oil test, etc, this paper analyzed the characteristics of tight oil and the main enrichment controlling factors of Chang 7 member through the aspects of reservoir distribution, reservoir performance and fluid properties. It is concluded that the turbidite sand body is developed in Chang 7 member and the reservoir space is tight and mainly with small pores; the crude oil has the good properties of low density, low viscosity, low freezing point, low sulfur and strong fluidity. The Chang 7 source rock is rich in organic matter with the average Ro of 0.78%, which provides a rich material basis for the formation of tight oil. The sand bodies of the Chang 71 and Chang 72 sub oil formations are thick and widely distributed, in favour of the accumulation of tight oil. However, the development of faults may destroy the accumulation of tight oil. Good preservation condition is necessary for the accumulation of tight oil in this area.
-
-
郑民, 李建忠, 吴晓智, 等.致密储集层原油充注物理模拟-以准噶尔盆地吉木萨尔凹陷二叠系芦草沟组为例[J]. 石油勘探与开发, 2013, 46(5):219-227.
ZHENG Min, LI Jianzhong, WU Xiaozhi, et al. Physical modeling of oil charging in tight reservoirs:A case study of Permian Lucaogou Formation in Jimsar Sag, Junggar Basin, NW China[J]. Petroleum Exploration and Development, 2013, 46(5):219-227.
蒲秀刚, 周立宏, 韩文中, 等.细粒相沉积地质特征与致密油勘探-以渤海湾盆地沧东凹陷孔店组二段为例[J]. 石油勘探与开发, 2016, 43(1):1-10.
PU Xiugang, ZHOU Lihong, HAN Wenzhong, et al. Geologic features of fine-grained facies sedimentation and tight oil exploration:A case from the second Member of Paleogene Kongdian Formation of Cangdong sag, Bohai Bay Basin[J]. Petroleum Exploration and Development, 2016, 43(1):1-10.
匡立春, 唐勇, 雷德文, 等.准噶尔盆地二叠系咸化湖相云质岩致密油形成条件与勘探潜力[J]. 石油勘探与开发, 2012, 39(6):657-667.
KUANG Lichun, TANG Yong, LEI Dewen, et al. Formation conditions and exploration potential of tight oil in the Permian saline lacustrine dolomitic rock, Junggar Basin, NW China[J]. Petroleum Exploration and Development, 2012, 39(6):657-667.
杨华, 李士祥, 刘显杨, 等.鄂尔多斯盆地致密油、页岩油特征及资源潜力[J]. 石油学报, 2013, 34(1):1-11.
YANG Hua, LI Shixiang, LIU Xianyang, et al. Characteristics and resource prospects of tight oil and shale oil in Ordos Basin[J]. Acta Petrolei Sinica, 2013, 34(1):1-11.
葛云锦, 任来义, 贺永红, 等.鄂尔多斯盆地富县-甘泉地区三叠系延长组长7油层组致密油富集主控因素[J]. 石油与天然气地质, 2018, 39(6):1190-1199.
GE Yunjin, REN Laiyi, HE Yonghong, et al. Main factors controlling the tight oil enrichment in the 7th oil layer group of the Triassic Yanchang Formation in Fuxian-Ganquan area, ordos Basin[J]. Oil & Gas Geology, 2018, 39(6):1190-1199.
姜呈馥, 王香增, 张丽霞, 等.鄂尔多斯盆地东南部延长组长7段陆相页岩气地质特征及勘探潜力评价[J]. 中国地质, 2013, 40(6):1880-1888.
JIANG Chengfu, WANG Xiangzeng, ZHANG Lixia, et al. Geological characteristics of shale and exploration potential of continental shale gas in 7th member of Yanchang Formation, southeast Ordos Basin[J]. Geology in China, 2013, 40(6):1880-1888.
白玉彬.鄂尔多斯盆地长7致密油成藏机理与富集规律[M]. 西安:石油工业出版社.
BAI Yubin.Tight oil accumulation mechanisms and Enrichment rule of Chang 7 Member, Ordos Basin[M]. Xi'an:Petroleum Industry Press.
白云来, 马龙, 吴武军, 等.鄂尔多斯盆地油页岩的主要地质特征及资源潜力[J]. 中国地质, 2009, 36(5):1123-1137.
BAI Yunlai, MA Long, WU Wujun, et al. Geological characteristics and resource potential of oil shale in Ordos basin[J]. Geology in China, 2009, 36(5):1123-1137.
孙建博, 孙兵华, 赵谦平, 等.鄂尔多斯盆地富县地区延长组长7湖相页岩油地质特征及勘探潜力评价[J]. 中国石油勘探, 2018, 23(6):29-37.
SUN Jianbo, SUN Binghua, ZHAO Qianping, et al. Geological characteristics and exploration potential evaluation of Chang 7 lacustrine shale oil inYanchang Forrmation, Fuxian area, Ordos Basin[J]. China Petroleum Exploration, 2018, 23(6):29-37.
于京都, 郑民, 李鹏, 等.鄂尔多斯盆地定边-庆阳地区长7段致密油烃源岩地质数据挖掘与评价[J]. 成都理工大学学报(自然科学版), 2017, 44(4):478-488.
YU Jingdu, ZHENG Min, LI Peng, et al. Geological data collection and assessment of tight oil source rock of Chang-7 from Dingbian to Qingyang region in Ordos Basin, China[J]. Journal of Chengdu University of Technology(Science & Technology Edition), 2017, 44(4):478-488.
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 Fomation in Londong Area Ordos Basin[J]. Acta Sedimentologica Sinica, 2006, 24(4):549-554.
昌燕, 刘人和, 拜文华, 等.鄂尔多斯盆地南部三叠系油页岩地质特征及富集规律[J]. 非常规油气, 2012, 17(2):74-78.
CHANG Yan, LIU Renhe, BAI Wenhua, et al. Geologic Characteristic and Regular Pattern of Triassic Oil Shale South of Ordos Basin[J]. Unconventional Oil and Gas, 2012, 17(2):74-78.
何崇康, 成良丙, 陈旭峰, 等.鄂尔多斯盆地新安边油田长7致密油有效储层识别与甜点优选[J]. 石油实验地质, 2017, 06:812-818.
HE Chongkang, CHENG Liangbing, CHEN Xufeng, et al. Effective reservoir identification and "sweet spot"optimization of Chang 7 tight oil reservoir in Xin'anbian oil field, Ordos Basin[J]. Petroleum Geology & Experiment, 2017, 06:812-818.
高振东, 赵靖舟, 曹青, 等.鄂尔多斯盆地三叠系延长组油藏成藏年代分析[J]. 西北地质, 2008, 41(3):92-98.
GAO Zhengdong, ZHAO Jingzhou, CAO Qing, et al. Geochronol Analysis of Oil Accumulation in Triassic Yanchang Formation, Ordos Basin[J]. Northwestern Geology, 2008, 41(3):92-98.
李士祥, 牛小兵, 柳广弟, 等.鄂尔多斯盆地延长组长7段页岩油形成富集机理[J]. 石油与天然气地质, 2020, 41(4):719-729.
LI Shixiang, NIU Xiaobing, LIU Guangdi, et al. Formation and accumulation mechanism of shale oil in the 7th member of Yangchang Formation, Ordos Basin[J]. Oil & Gas Geology, 2020, 41(4):719-729.
王永炜, 李荣西, 王震亮, 等.鄂尔多斯盆地南部延长组长7段致密油成藏条件与富集主控因素[J]. 西北大学自然学报, 2019, 49(1):144-154.
WANG Yongwei, LI Rongxi, WANG Zhengliang, et al. Tight oil accumulation mechanism of Chang 7 interval in southern Ordos Basin[J]. Jouanal of Northwest University(Natural Science Edition), 2019, 49(1):144-154.
刘池洋, 王建强, 邱欣卫, 等.鄂尔多斯盆地延长期富烃坳陷形成的动力学环境与构造属性[J]. 岩石学报, 2020, 36(6):1914-1930.
LIU Chiyang, WANG Jianqiang, QIU Xinwei, et al. Geodynamic environment and tectonic attributes of the hydrocarbon-rich sag in Yanchang Period of Middle-Late Triassic, Ordos Basin[J]. Acta Petrologica Sinica, 2020, 36(6):1914-1930.
刘福田, 李荣西, 左智峰, 等.鄂尔多斯盆地南部地区上三叠统延长组长6段地层水成因及其油气意义[J]. 石油与天然气地质, 2018, 39(6):1179-1189.
LIU Futian, LI Rongxi, ZUO Zhifeng, et al. Genesis of formation water in the 6th member of the Upper Triassic Yanchang Formation in southern Ordos Basin and its petroleum significance[J], Oil & Gas Geology, 2018, 39(6):1179-1189.
朱瑾瑾, 符超峰, 杨海龙, 等.鄂尔多斯盆地甘谷驿油区延长组长6储层综合评价[J]. 西北地质, 2019, 52(1):166-175.
ZHU Jinjin, FU Chaofeng, YANG Hailong, et al. Comprehensive Evaluation of Chang 6 Reservior from Yanchang Formation in Ganguyi Oil Area, Ordos Basin[J]. North western Geology, 2019, 52(1):166-175.
付锁堂, 付金华, 牛小兵, 等.庆城油田成藏条件及勘探开发关键技术[J]. 石油学报, 2020, 41(7):777-795.
FU Suotang, FU Jinhua, NIU Xiaobing, et al. Accumulation conditions and key exploration and development technologies in Qingcheng oilfield[J]. Acta Petrolei Sinica, 2020, 41(7):777-795.
-
计量
- 文章访问数: 628
- PDF下载数: 61
- 施引文献: 0
下载: