鄂尔多斯盆地红河油田长8油层组致密砂岩储层“甜点”成因机制

王付斌; 尹伟; 陈纯芳

doi:10.11781/sysydz201704484

鄂尔多斯盆地红河油田长8油层组致密砂岩储层“甜点”成因机制

doi: 10.11781/sysydz201704484

1.
中国石化华北油气分公司勘探管理部, 郑州 450006
2. 中国石化石油勘探开发研究院, 北京 100083

基金项目: 国家科技重大专项“中西部重点碎屑岩层系油气富集规律与勘探方向”（2016ZX05002-006）资助。

详细信息

作者简介:
王付斌(1973—),男,硕士,高级工程师,从事油气勘探研究工作。E-mail:wderdos@163.com。

中图分类号: TE122.24
计量
- 文章访问数: 1121
- HTML全文浏览量: 124
- PDF下载量: 2042
- 被引次数: 0
出版历程
- 收稿日期: 2017-05-01
- 修回日期: 2017-06-20
- 刊出日期: 2017-07-28

Forming mechanisms of reservoir “sweet spots” in tight sandstones of Chang8 Formation, Honghe oil field, Ordos Basin

1.
Exploration Management Department of SINOPEC North China Branch Company, Zhengzhou, Henan 450006, China
2. SINOPEC Petroleum Exploration & Production Research Institute, Beijing 100083, China

摘要

摘要: 鄂尔多斯盆地红河油田长8油层组储层物性普遍具有低渗—致密特征，但局部发育储层“甜点”（即相对优质储层），并控制着油气富集高产，因此，开展储层“甜点”成因机制研究对致密砂岩储层预测意义重大。通过大量岩石薄片、铸体薄片、阴极发光、扫描电镜、荧光薄片等的系统观察与统计，结合储层矿物组成、胶结物含量、物性测试分析，从沉积建造到成岩改造开展了储层物性影响因素的全过程分析，剖析沉积、成岩、破裂及油气侵位作用对致密砂岩储层储集性能的影响。结果表明，沉积作用是控制致密砂岩储层物性的第一位因素，奠定了致密砂岩储层发育的物质基础，并控制了其原始物性；成岩作用控制了致密砂岩储层的孔隙演化，其中建设性成岩作用控制了储层“甜点”的发育，并最终控制了孔隙型致密砂岩储层“甜点”分布；裂缝大大提高了致密砂岩储层渗流能力，并最终控制了裂缝—孔隙型致密砂岩储层“甜点”分布；油气侵位抑制了胶结作用的进行，是致密砂岩储层“甜点”重要的保持机制。
- 储层“甜点” /
- 沉积作用 /
- 成岩作用 /
- 油气侵位 /
- 长8油层组 /
- 红河油田 /
- 鄂尔多斯盆地
Abstract: Reservoir "sweet spots" (that is, relatively high quality reservoirs) exist locally in the low-permeability, tight sandstone reservoirs of Chang8 Formation in the Honghe oil field, controlling hydrocarbon enrichment and production. This reservoir provides evidence and direction for prediction of tight sandstones to study their forming mechanisms. The impacts of sedimentation, diagenesis, fracturing and oil emplacement on reservoir quality of the tight sandstones during the whole reservoir evolution process from sedimentary construction to diagenetic reformation were systematically analyzed using rock sections, casting thin sections, cathode-luminescence, scanning electron microscopy, micro fluorescence observations and statistics, combined with the analyses of mineral composition, volume of cementation minerals and reservoir physical tests. The results indicate that sedimentation is the most important factor controlling tight sandstone reservoir properties by providing a material basis and controlling the original properties of tight sandstones. Diagenesis is another factor which controls the porosity evolution of tight sandstones, and construction diagenesis controls the formation of reservoir "sweet spots" in tight sandstones and the distribution of "sweet spots" in pore-type tight sandstone reservoirs. The superimposed reformation of structural fractures improves the reservoir properties of tight sandstones, especially the permeability, resulting in the distribution of "sweet spots" in fractured tight sandstone reservoirs. Oil emplacement inhibits cementation as one of the important mechanisms of "sweet spot" preservation in the tight sandstone reservoirs.
- reservoir “sweet spot” /
- sedimentation /
- diagenesis /
- oil emplacement /
- Chang8 Formation /
- Honghe oil field /
- Ordos Basin

HTML全文

参考文献(29)

[1]	徐美娥,尹伟,陈冬,等.鄂尔多斯盆地红河油田延长组致密砂岩储层反演预测[J].中国石油勘探,2015,20(1):63-68. Xu Mei'e,Yin Wei,Chen Dong,et al.Inversion prediction of tight sandstone reservoir of Yangchang Formation of Honghe oilfield in Ordos Basin[J].China Petroleum Exploration,2015,20(1):63-68.
[2]	梁承春,郭景祥.鄂尔多斯盆地红河油田延长组长8₁小层致密砂岩成岩作用与储层特征[J].油气地质与采收率,2017,24(1):57-63. Liang Chengchun,Guo Jingxiang.Diagenesis and reservoir charac-teristics of tight sandstones of Chang8₁ member of Yanchang Formation in Honghe oilfield,Ordos Basin[J].Petroleum Geology and Recovery Efficiency,2017,24(1):57-63.
[3]	马立元,尹航,陈纯芳,等.鄂尔多斯盆地红河油田原油地球化学特征及油源分析[J].沉积学报,2015,33(2):416-425. Ma Liyuan,Yin Hang,Chen Chunfang,et al.Research of geochemistry characteristics and source of crude oils from the Honghe oilfield in the Ordos Basin[J].Acta Sedimentologica Sinica,2015,33(2):416-425.
[4]	赵靖舟,白玉彬,曹青,等.鄂尔多斯盆地准连续型低渗透—致密砂岩大油田成藏模式[J].石油与天然气地质,2012,33(6):811-827. Zhao Jingzhou,Bai Yubin,Cao Qing,et al.Quasi-continuous hydrocarbon accumulation:A new pattern for large tight sand oilfields in the Ordos Basin[J].Oil & Gas Geology,2012,33(6):811-827.
[5]	杨伟伟,柳广弟,刘显阳,等.鄂尔多斯盆地陇东地区延长组低渗透砂岩油藏成藏机理与成藏模式[J].地学前缘,2013,20(2):132-139. Yang Weiwei,Liu Guangdi,Liu Xianyang,et al.The accumulation mechanism and accumulation models of oil in low permeability reservoir of Yanchang Formation in Longdong area,Ordos Basin[J].Earth Science Frontiers,2013,20(2):132-139.
[6]	邹才能,陶士振,朱如凯,等."连续型"气藏及其大气区形成机制与分布:以四川盆地须家河组煤系大气区为例[J].石油勘探与开发,2009,36(3):307-319. Zou Caineng,Tao Shizhen,Zhu Rukai,et al.Formation and distribution of "continuous" gas reservoirs and their giant gas province:A case from the Upper Triassic Xujiahe Formation giant gas province,Sichuan Basin[J].Petroleum Exploration and Development,2009,36(3):307-319.
[7]	邹才能,陶士振,袁选俊,等."连续型"油气藏及其在全球的重要性:成藏、分布与评价[J].石油勘探与开发,2009,36(6):669-682. Zou Caineng,Tao Shizhen,Yuan Xuanjun,et al.Global importance of "continuous" petroleum reservoirs:Accumulation,distribution and evaluation[J].Petroleum Exploration and Development,2009,36(6):669-682.
[8]	邹才能,朱如凯,吴松涛,等.常规与非常规油气聚集类型、特征、机理及展望:以中国致密油和致密气为例[J].石油学报,2012,33(2):173-187. Zou Caineng,Zhu Rukai,Wu Songtao,et al.Types,characteristics,genesis and prospects of conventional and unconventional hydrocarbon accumulations:Taking tight oil and tight gas in China as an instance[J].Acta Petrolei Sinica,2012,33(2):173-187.
[9]	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.
[10]	兰叶芳,黄思静,吕杰.储层砂岩中自生绿泥石对孔隙结构的影响:来自鄂尔多斯盆地上三叠统延长组的研究结果[J].地质通报,2011,30(1):134-140. Lan Yefang,Huang Sijing,Lü Jie.Influences of authigenic chlorite on pore structure in sandstone reservoir:A case study from Upper Triassic Yanchang Formation in Ordos Basin,China[J].Geological Bulletin of China,2011,30(1):134-140.
[11]	黄思静,谢连文,张萌,等.中国三叠系陆相砂岩中自生绿泥石的形成机制及其与储层孔隙保存的关系[J].成都理工大学学报(自然科学版),2004,31(3):273-281. Huang Sijing,Xie Lianwen,Zhang Meng,et al.Formation mechanism of authigenic chlorite and relation to preservation of porosity in nonmarine Triassic reservoir sandstones,Ordos Basin and Sichuan Basin,China[J].Journal of Chengdu University of Technology (Science & Technology Edition),2004,31(3):273-281.
[12]	陈宝赟,李荣西,梁积伟,等.自生绿泥石及其对储层物性影响研究:以鄂尔多斯盆地西南缘延长组为例[J].矿物岩石地球化学通报,2014,33(3):389-394. Chen Baoyun,Li Rongxi,Liang Jiwei,et al.Authigenic chlorite and its impaction on reservoir physical properties:An example from the Yanchang Formation of the southwest Ordos Basin[J].Bulletin of Mineralogy,Petrology and Geochemistry,2014,33(3):389-394.
[13]	李弘,王芙蓉,戴世立,等.绿泥石膜对储层孔隙度的影响:以鄂尔多斯盆地M油田延长组2段为例[J].岩性油气藏,2008,20(4):71-74. Li Hong,Wang Furong,Dai Shili,et al.Influence of chlorite film on reservoir porosity:A case study from the second member of Yanchang Formation in Ordos Basin[J].Lithologic Reservoirs,2008,20(4):71-74.
[14]	史基安,王金鹏,毛明陆,等.鄂尔多斯盆地西峰油田三叠系延长组长6-8段储层砂岩成岩作用研究[J].沉积学报,2003,21(3):373-380. Shi Ji'an,Wang Jinpeng,Mao Minglu,et al.Reservoir sandstone diagenesis of member 6 to 8 in Yanchang Formation (Triassic),Xifeng Oilfield,Ordos Basin[J].Acta Sedimentologica Sinica,2003,21(3):373-380.
[15]	郭正权,齐亚林,楚美娟,等.鄂尔多斯盆地上三叠统延长组储层致密史恢复[J].石油实验地质,2012,34(6):594-598. Guo Zhengquan,Qi Yalin,Chu Meijuan,et al.Recovery of compact history of Yanchang reservoir in Upper Triassic,Ordos Basin[J].Petroleum Geology & Experiment,2012,34(6):594-598.
[16]	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.
[17]	王瑞飞,孙卫.鄂尔多斯盆地姬塬油田上三叠统延长组超低渗透砂岩储层微裂缝研究[J].地质论评,2009,55(3):444-448. Wang Ruifei,Sun Wei.A study on micro cracks in super-low permeability sandstone reservoir of the Upper Triassic Yanchang Formation in the Ordos Basin[J].Geological Review,2009,55(3):444-448.
[18]	曾联波,高春宇,漆家福,等.鄂尔多斯盆地陇东地区特低渗透砂岩储层裂缝分布规律及其渗流作用[J].中国科学(D辑地球科学),2008,38(S1):41-47. Zeng Lianbo,Gao Chunyu,Qi Jiafu,et al.The distribution rule and seepage effect of the fractures in the ultra-low permeability sandstone reservoir in east Gansu Province,Ordos Basin[J].Sciences Science in China (Series D Earth Sciences),2008,51(S2):44-52.
[19]	邸领军.鄂尔多斯盆地储集层物性断裂对超低渗油气藏的控制作用[J].石油勘探与开发,2006,33(6):667-670. Di Lingjun.Controlling of petrophysical fractures on extra-low permeability oil and gas reservoirs in Ordos Basin[J].Petroleum Exploration and Development,2006,33(6):667-670.
[20]	赵文智,胡素云,汪泽成,等.鄂尔多斯盆地基底断裂在上三叠统延长组石油聚集中的控制作用[J].石油勘探与开发,2003,30(5):1-5. Zhao Wenzhi,Hu Suyun,Wang Zecheng,et al.Key role of basement fault control on oil accumulation of Yanchang Formation,Upper Triassic,Ordos Basin[J].Petroleum Exploration and Development,2003,30(5):1-5.
[21]	付金华,罗安湘,喻建,等.西峰油田成藏地质特征及勘探方向[J].石油学报,2004,25(2):25-29. Fu Jinhua,Luo Anxiang,Yu Jian,et al.Geological features of reservoir formation and exploration strategy of Xifeng Oilfield[J].Acta Petrolei Sinica,2004,25(2):25-29.
[22]	刘明洁,刘震,刘静静,等.鄂尔多斯盆地上三叠统延长组机械压实作用与砂岩致密过程及对致密化影响程度[J].地质论评,2014,60(3):655-665. Liu Mingjie,Liu Zhen,Liu Jingjing,et al.The relationship between the mechanical compaction and the densification process of sandstones and the affect degree of compaction to the densifying of Yanchang Formation,Ordos Basin[J].Geological Review,2014,60(3):655-665.
[23]	王新民,郭彦如,付金华,等.鄂尔多斯盆地延长组长8段相对高孔渗砂岩储集层的控制因素分析[J].石油勘探与开发,2005,32(2):35-38. Wang Xinmin,Guo Yanru,Fu Jinhua,et al.Control factors for forming higher porosity and permeability sandstone reservoirs in Chang 8 member of Yanchang Formation,Ordos Basin[J].Petroleum Exploration and Development,2005,32(2):35-38.
[24]	朱国华.陕北浊沸石次生孔隙砂体的形成与油气关系[J].石油学报,1985,6(1):1-8. Zhu Guohua.Formation of lomonitic sand bodies with secondary porosity and their relationship with hydrocarbons[J].Acta Petrolei Sinica,1985,6(1):1-8.
[25]	杨晓萍,裘怿楠.鄂尔多斯盆地上三叠统延长组浊沸石的形成机理、分布规律与油气关系[J].沉积学报,2002,20(4):628-632. Yang Xiaoping,Qiu Yinan.Formation process and distribution of laumontite in Yanchang Formation (Upper Triassic) of Ordos Basin[J].Acta Sedimentologica Sinica,2002,20(4):628-632.
[26]	张文正,杨华,李剑锋,等.论鄂尔多斯盆地长7段优质油源岩在低渗透油气成藏富集中的主导作用:强生排烃特征及机理分析[J].石油勘探与开发,2006,33(3):289-293. Zhang Wenzheng,Yang Hua,Li Jianfeng,et al.Leading effect of high-class source rock of Chang 7 in Ordos Basin on enrichment of low permeability oil-gas accumulation:Hydrocarbon generation and expulsion mechanism[J].Petroleum Exploration and Development,2006,33(3):289-293.
[27]	刘伟刚,周立发,高淑静.鄂尔多斯盆地中西部三叠系延长组裂缝特征研究[J].岩性油气藏,2012,24(6):66-71. Liu Weigang,Zhou Lifa,Gao Shujing.Fracture characteristics of the Triassic Yanchang Formation in the midwest of Ordos Basin[J].Lithologic Reservoirs,2012,24(6):66-71.
[28]	李相博,刘显阳,周世新,等.鄂尔多斯盆地延长组下组合油气来源及成藏模式[J].石油勘探与开发,2012,39(2):172-180. Li Xiangbo,Liu Xianyang,Zhou Shixin,et al.Hydrocarbon origin and reservoir forming model of the Lower Yanchang Formation,Ordos Basin[J].Petroleum Exploration and Development,2012,39(2):172-180.
[29]	罗晓容,张刘平,杨华,等.鄂尔多斯盆地陇东地区长8₁段低渗油藏成藏过程[J].石油与天然气地质,2010,31(6):770-778. Luo Xiaorong,Zhang Liuping,Yang Hua,et al.Oil accumulation process in the low-permeability Chang-8₁ member of Longdong area,the Ordos Basin[J].Oil & Gas Geology,2010,31(6):770-778.