Classification and evaluation of tight reservoirs in Fuyu oil layer, Sanzhao Sag, Songliao Basin
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摘要: 精细评价的方法主要体现在精细分类和纵向细分层2个方面。通过沉积及砂体特征的精细研究,利用恒速压汞、高压压汞以及纳米微观分析等手段综合研究,认为扶余油层致密储层可以划分为2大类3小类,即Ⅰ-1,Ⅰ-2和Ⅱ类,其中致密油储层与常规储层的分界物性为孔隙度12%,渗透率1×10-3 μm2,孔喉半径为350 nm;其余Ⅰ-1和Ⅰ-2类以及Ⅰ-2和Ⅱ类物性标准分别以孔隙度10%和8%,渗透率0.25×10-3 μm2和0.1×10-3 μm2为界,对应的孔喉半径分别为150 nm和75 nm。通过纵向细分层精细12分的砂层组级研究,每一层砂层组内仅含有1~2个砂体,I类致密油集中发育在FⅠ2-1,FⅠ3-1以及FⅡ2-2砂层组。在分层落实不同类型致密油剩余资源后,通过致密油水平井钻探及大规模体积压裂,可以有效开发致密油资源。Abstract: Fine evaluation is mainly embodied in two aspects: fine classification and vertical subdivision. The tight reservoirs in Fuyu oil layer can be divided into three categories, namely Ⅰ-1, Ⅰ-2 and Ⅱ combined with the study of sedimentary and sandbody characteristics, and by means of constant pressure mercury injection, high pressure mercury injection and nano microcosmic analysis. The boundary between tight oil reservoirs and conventional reservoirs is porosity 12%, permeability 1×10-3 μm2, pore throat radius 350 nm. The remaining Ⅰ-1 and Ⅰ-2 classes, as well as the Ⅰ-2 and Ⅱ standards, respectively, with the porosity of 10% and 8%, permeability of 0.25×10-3 μm2 and 0.1×10-3 μm2 as the boundary, corresponding to the pore throat radius of 150 nm and 75 nm. Each layer of the sand groups contains only 1-2 sand bodies based on the fine study of the longitudinal subdivision layer. Ⅰ class reservoirs mainly developed in FⅠ2-1, FⅠ3-1 and FⅡ2-2 sand groups. The remaining resources of different types of tight oil are implemented by layer, and through tight oil horizontal well drilling and large volume fracturing, tight oil resources can be explored effectively.
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Key words:
- tight oil /
- nanometer /
- delta facies /
- meandering stream facies /
- remaining resources /
- Sanzhao Sag /
- Songliao Basin
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[1] 赵政璋,杜金虎,邹才能,等.致密油气[M].北京:石油工业出版社,2012. Zhao Zhengzhang,Du Jinhu,Zou Caineng,et al.Tight oil & gas[M].Beijing:Petroleum Industry Press,2012. [2] 邹才能,陶士振,侯连华,等.非常规油气地质[M].2版.北京:地质出版社,2013. Zou Caineng,Tao Shizhen,Hou Lianhua,et al.Unconventional petroleum geology[M].2nd ed.Beijing:Geological Publishing House,2013. [3] 喻建,马捷,路俊刚,等.压汞—恒速压汞在致密储层微观孔喉结构定量表征中的应用:以鄂尔多斯盆地华池—合水地区长7储层为例[J].石油实验地质,2015,37(6):789-795. Yu Jian,Ma Jie,Lu Jungang,et al.Application of mercury injection and rate-controlled mercury penetration in quantitative characterization of microscopic pore structure of tight reservoirs:A case study of the Chang7 reservoir in Huachi-Heshui area,the Ordos Basin[J].Petroleum Geology & Experiment,2015,37(6):789-795. [4] 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. Jia Chengzao,Zou Caineng,Li Jianzhong,et al.Assessment criteria,main types,basic features and resource prospects of the tight oil in China[J].Acta Petrolei Sinica,2012,33(3):343-350. [5] 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].中国石油勘探,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].China Petroleum Exploration,2012,17(2):74-78. [6] 贾承造,郑民,张永峰.中国非常规油气资源与勘探开发前景[J].石油勘探与开发,2012,39(2):129-136. Jia Chengzao,Zheng Min,Zhang Yongfeng.Unconventional hydrocarbon resources in China and the prospect of exploration and development[J].Petroleum Exploration and Development,2012,39(2):129-136. [7] 崔俊,周莉,张小波,等.柴达木盆地乌南油田致密砂岩储层特征[J].中国石油勘探,2013,18(1):22-28. Cui Jun,Zhou Li,Zhang Xiaobo,et al.Characteristics of compact rock reservoir of Wunan oil field in Qaidamu Basin[J].China Petroleum Exploration,2013,18(1):22-28. [8] 童晓光.世界石油供需状况展望:全球油气资源丰富,仍具有较强的油气供给能力[J].世界石油工业,2007,14(3):20-25. Tong Xiaoguang.World petroleum status of supply and demand:Global oil and gas resources is abundant,still has strong oil and gas supply capacity[J].World Petroleum Industry,2007,l4(3):20-25. [9] 郭秋麟,陈宁生,吴晓智,等.致密油资源评价方法研究[J].中国石油勘探,2013,18(2):67-76. Guo Qiulin,Chen Ningsheng,Wu Xiaozhi,et al.Method for assessment of tight oil resources[J].China Petroleum Exploration,2013,18(2):67-76. [10] 邹才能,张国生,杨智,等.非常规油气概念、特征、潜力及技术:兼论非常规油气地质学[J].石油勘探与开发,2013,40(4):385-399. Zou Caineng,Zhang Guosheng,Yang Zhi,et al.Geological concepts,characteristics,resource potential and key techniques of unconventional hydrocarbon:On unconventional petroleum geology[J].Petroleum Exploration and Development,2013,40(4):385-399. [11] 丹尼尔·耶金.能源重塑世界[M].朱玉犇,阎志敏,译.北京:石油工业出版社,2012. Yergin D.Quest:Energy,security,and the remaking of the modern world[M].Niu Yuben,Yan Zhimin,Trans.Beijing:Petroleum Industry Press,2012. [12] Cander H.What is unconventional resources?[R].Long Beach,California:AAPG Annual Convention and Exhibition,2012. [13] 何顺利,焦春艳,王建国,等.恒速压汞与常规压汞的异同[J].断块油气田,2011,18(2):235-237. He Shunli,Jiao Chunyan,Wang Jianguo,et al.Discussion on the differences between constant-speed mercury injection and conventional mercury injection techniques[J].Fault-Block Oil & Gas Field,2011,18(2):235-237. [14] 徐赢,潘有军,张中劲,等.恒速压汞实验的低渗透储层孔隙结构特征研究[J].吐哈油气,2011,16(3):237-242. Xu Ying,Pan Youjun,Zhang Zhongjin,et al. Study on pore structure characteristics of low permeability reservoir based on constant velocity mercury penetration experiment[J]. Tuha Oil & Gas,2011,16(3):237-242. [15] 高辉,解伟,杨建鹏,等.基于恒速压汞技术的特低—超低渗砂岩储层微观孔喉特征[J].石油实验地质,2011,33(2):206-211. Gao Hui,Xie Wei,Yang Jianpeng,et al. Pore throat characteristics of extra-ultra low permeability sandstone reservoir based on constant-rate mercury penetration technique[J]. Petroleum Geology & Experiment,2011,33(2):206-211. [16] 何更生.油层物理[M].北京:石油工业出版社,1994:30-39,192-199. He Gengsheng.Reservoir physics[M].Beijing:Petroleum Industry Press,1994:30-39,192-199. [17] Sun W,Qu Z H,Tang G Q.Characterization of water injection in low-permeability rock using sandstone micromodels[J].Journal of Petroleum Technology,2004,56(5):71-72. [18] Sun W,Tang G Q.Visual study of water injection in low permeable sandstone[J].Journal of Canadian Petroleum Technology,2006,45(11):21-26. [19] 陈志海.特低渗油藏储层微观孔喉分布特征与可动油评价:以十屋油田营城组油藏为例[J].石油实验地质,2011,33(6):657-661. Chen Zhihai.Distribution feature of micro-pore and throat and evaluation of movable oil in extra-low permeability reservoir:A case study in Yingcheng Formation,Shiwu oil field[J].Petro-leum Geology & Experiment,2011,33(6):657-661. [20] 王志战,翟慎德,周立发,等.核磁共振录井技术在岩石物性分析方面的应用研究[J]. 石油实验地质,2005,27(6):619-623. Wang Zhizhan,Zhai Shende,Zhou Lifa,et al.Application of nuclear magnetic resonance logging technology in physical property analysis of rock[J].Petroleum Geology & Experiment,2005,27(6):619-623. [21] 李成,郑庆华,张三,等.鄂尔多斯盆地镇北地区长4+5储层微观孔隙结构研究[J].石油实验地质,2015,37(6):729-736. Li Cheng,Zheng Qinghua,Zhang San,et al.Microscopic pore structure of the fourth and fifth members of the Yanchang Formation in Zhenbei area of the Ordos Basin[J].Petroleum Geo-logy & Experiment,2015,37(6):729-736.
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