不同类型低渗透储层有效厚度物性下限及其差异性成因——以陕北斜坡中部S地区中生界为例

doi:10.11743/ogg20150404

石油与天然气地质 ›› 2015, Vol. 36 ›› Issue (4): 555-562.doi: 10.11743/ogg20150404

不同类型低渗透储层有效厚度物性下限及其差异性成因——以陕北斜坡中部S地区中生界为例

张凤奇¹, 武富礼¹, 蒙晓灵², 高兴军³, 张海³, 李程善⁴, 王宝萍³

1. 西安石油大学地球科学与工程学院, 陕西西安 710065;
2. 中国石油长庆油田分公司勘探开发研究院, 陕西西安 710018;
3. 延长油田股份有限公司, 陕西延安 716000;
4. 中国石油长庆油田分公司勘探部, 陕西西安 710018

收稿日期:2014-06-23 修回日期:2015-05-17 出版日期:2015-08-08 发布日期:2015-08-28
第一作者简介:张凤奇(1981—),男,博士、副教授,油气成藏地质学。E-mail:zhangfengqi68@126.com。
基金项目:
陕西省教育厅科研计划项目(2013JK0846);博士启动基金项目(YS29031610)。

Porosity and permeability cutoffs for calculating effective thickness of different types of low-permeability reservoirs and causes of their differences: a case study of the Mesozoic in S region of central Shaanbei slope

Zhang Fengqi¹, Wu Fuli¹, Meng Xiaoling², Gao Xingjun³, Zhang Hai³, Li Chengshan⁴, Wang Baoping³

1. School of Earth Sciences and Engineering, Xi'an Shiyou University, Xi'an, Shaanxi 710065, China;
2. Exploration & Development Research Institute, PetroChina Changqing Oilfield Company, Xi'an, Shaanxi 710018, China;
3. Yanchang Petroleum Coporation, Yan'an, Shaanxi 716000, China;
4. Department of Exploration, PetroChina Changqing Oilfield Company, Xi'an, Shaanxi 710018, China

Received:2014-06-23 Revised:2015-05-17 Online:2015-08-08 Published:2015-08-28

摘要/Abstract

摘要： 运用铸体薄片鉴定、扫描电镜、阴极发光与压汞等测试分析，综合多方法相互印证分析了鄂尔多斯盆地S地区中生界主力含油层系有效厚度物性下限，并结合物性变化的定量表征探讨了各主力油层间有效厚度物性下限的差异性成因。结果表明，研究区储层有效厚度物性下限值随埋深增大而变小，延9油层组、长2油层组和长6油层组（长4+5油层组）的孔隙度下限分别为15%，14%和8%，渗透率下限分别为4.0×10^-3，1.0×10^-3和0.15×10^-3 μm²。沉积作用形成各储层矿物成分中刚性颗粒含量与粒度大小等差异是其物性差异性形成的基础影响因素，而成岩作用是其差异性形成的最主要原因。各成岩作用类型的具体影响为：各储层初始孔隙度相差较小，长2油层组与延9油层组相比，压实作用和胶结作用共同作用而减少的孔隙度基本相当，差别在于后者的溶蚀改善作用增加的孔隙度稍好于前者；长6油层组（长4+5油层组）与长2油层组相比，压实作用减少的孔隙度和溶蚀作用增加的孔隙度差别均不大，差别在于前者因胶结作用减少的孔隙度大于后者，这是两者物性下限差异的最主要原因。

关键词: 差异性, 有效厚度, 物性下限, 中生界, 鄂尔多斯盆地

Abstract: Analytic means including thin section examination, SEM, cathode luminescence, mercury penetration and so on, were applied to determine the cutoffs of porosity and permeability for calculating the effective thickness of the major Mesozoic oil-bearing formations in S region of Ordos Basin.The reasons for the varying cutoffs were also discussed based on quantitative characterization of physical property changes of the formations.The results show that the cutoffs(porosity and permeability)decline with the increase of burial depth.Samples from Yan 9, Chang 2, Chang 4+5 and Chang 6 formations, have porosity cutoffs of 15%, 14%, 8% respectively, and permeability cutoffs of 4× 10^-3, 1× 10^-3, 0.15× 10^-3 μm² respectively.The differences in content and grain size of rigid particles in mineral composition of each reservoir caused mainly by sedimentation processes are regarded as the basic factor for the difference of cutoffs, while diagenesis is the major factor.The processes, including compaction, cementation and corrosion, dented the formations in different ways.All the formations had the similar porosity at first.But later on it turned out that Yan 9 had a higher porosity than that of Chang 2 because of their different response to corrosion and Chang 4+5 had lower porosity than that of Chang 2 because of their different behavior under cementation.

Key words: difference, effective thickness, porosity and permeability cutoff, Mesozoic, Ordos Basin

中图分类号:

TE122.2

张凤奇,武富礼,蒙晓灵,等. 不同类型低渗透储层有效厚度物性下限及其差异性成因——以陕北斜坡中部S地区中生界为例[J]. 石油与天然气地质, 2015, 36(4): 555-562. doi: 10.11743/ogg20150404 Zhang Fengqi,Wu Fuli,Meng Xiaoling,et al. Porosity and permeability cutoffs for calculating effective thickness of different types of low-permeability reservoirs and causes of their differences: a case study of the Mesozoic in S region of central Shaanbei slope[J]. Oil & Gas Geology, 2015, 36(4): 555-562. doi: 10.11743/ogg20150404

参考文献

[1] 宋子齐, 程国建, 王静, 等.特低渗透油层有效厚度确定方法研究[J].石油学报, 2006, 27(6):103-106. Song Ziqi, Cheng Guojian, Wang Jing, et al.Determination of effective thickness for oil reservoir with extra-low permeability[J].Acta Petrolei Sinica, 2006, 27(6):103-106.
[2] 武富礼, 赵靖舟, 闫世可, 等.陕北地区中生界石油补偿成藏规律研究[J].石油学报, 2007, 28(3):23-31. Wu Fuli, Zhao Jingzhou, Yan Shike, et al.Compensatory petroleum accumulation rules in the Mesozoic of Shaanbei area[J].Acta Petrolei Sinica, 2007, 28(3):23-31.
[3] 赵靖舟, 武富礼, 闫世可, 等.陕北斜坡东部三叠系油气富集规律研究[J].石油学报, 2006, 27(5):24-34. Zhao Jingzhou, Wu Fuli, Yan Shike, et al.Regularity of Triassic petroleum accumulation and distribution in the east part of North Shaanxi Slope[J].Acta Petrolei Sinica, 2006, 27(5):24-34.
[4] 武富礼, 王变阳, 赵靖舟, 等.鄂尔多斯盆地油藏序列特征及成因[J].石油学报, 2008, 29(5):639-642. Wu Fuli, Wang Bianyang, Zhao Jingzhou, et al.Origin and characteri-stics of oil pool sequence in Ordos Basin[J].Acta Petrolei Sinica, 2008, 29(5):639-642.
[5] 王媛媛, 王桂成, 徐勇强, 等.杏子川油田长6低渗透储层有效厚度下限研究[J].地质科技情报, 2013, 32(3):113-116. Wang Yuanyuan, Wang Guicheng, Xu Yongqiang, et al.Research on the minimum net pay thickness for Chang-6 oil reservoirs with low permeability in Xingzichuan oilfield[J].Geological Science and Technology Information, 2013, 32(3):113-116.
[6] 王桂成, 宋子齐, 王瑞飞, 等.基于岩石物理相分类确定特低渗透油层有效厚度——以安塞油田沿河湾地区长6特低渗透储层评价为例[J].地质学报, 2010, 84(2):286-291. Wang Guicheng, Song Ziqi, Wang Ruifei, et al.Refined evaluating thickness of extra-low permealibility reservoir using lithophase classification——Take the Chang 6 extra-low permealibility reservoir of the Yanhewan area as an example[J].Acta Geologica Sinica, 2010, 84(2):286-291.
[7] 李易隆, 贾爱林, 何东博.致密砂岩有效储层形成的控制因素[J].石油学报, 2013, 34(1):71-82. Li Yinglong, Jia Ailin, He Dongbo.Control factors on the formation of effective reservoirs in tight sands:examples from Guang'an and Sulige gasfields[J].Acta Petrolei Sinica, 2013, 34(1):71-82.
[8] 杨通佑, 范尚炯, 陈元千, 等.石油及天然气储量计算方法[M].北京:石油工业出版社, 1990:31-46. Yang Tongyou, Fan Shangjiong, Chen Yuanqian, et al.Petroleum and natural gas reservoirs calculation method[M].Beijing:Petroleum Industry Press, 1990:31-46.
[9] 焦翠华, 夏冬冬, 王军, 等.特低渗砂岩储层物性下限确定方法——以永进油田西山窑组储集层为例[J].石油与天然气地质, 2009, 30(3):379-383. Jiao Cuihua, Xia Dongdong, Wang Jun, et al.Methods for determining the petrophysical property cutoffs of extra-low porosity and permeabi-lity sandstone reservoirs——an example from the Xishanyao Formation reservoirs in Yongjin oilfield[J].Oil & Gas Geology, 2009, 30(3):379-383.
[10] 胡林楠, 赵靖舟.致密砂岩气藏有效厚度确定方法及应用探讨[J].天然气地球科学, 2013, 24(1):69-77. Hu Linnan, Zhao Jingzhou.A discussion on the determination way to effective thickness of tight sandstone gas pools[J].Natural Gas Geoscience, 2013, 24(1):69-77.
[11] 王健, 操应长, 高永进, 等.东营凹陷古近系红层砂体有效储层的物性下限及控制因素[J].中国石油大学学报(自然科学版), 2011, 35(4):27-33. Wang Jian, Cao Yingchang, Gao Yongjin, et al.Petrophysical parameter cutoff and controlling factors of effective reservoir of red beds sandbodies of Paleogene in Dongying depression[J].Journal of China University of Petroleum, 2011, 35(4):27-33.
[12] 操应长, 杨田, 王健, 等.东营凹陷南坡沙四上亚段滩坝砂岩有效储层成因[J].中国石油大学学报(自然科学版), 2013, 37(6):1-9. Cao Yingchang, Yang Tian, Wang Jian, et al.Genesis of effective reservoirs of beach-bar sandstone in upper part of the fourth member of Shahejie formation in the sourthern slope of Dongying sag[J].Journal of China University of Petroleum, 2013, 37(6):1-9.
[13] 王峰, 陈蓉, 田景春, 等.鄂尔多斯盆地陇东地区长4+5油层组致密砂岩储层成岩作用及成岩相[J].石油与天然气地质, 2014, 35(2):199-206. Wang Feng, Chen Rong, Tian Jingchun, et al.Diagenesis and diagenetic facies of the Chang 4+5 tight sandstone reservoirs in Longdong area, Ordos Basin[J].Oil & Gas Geology, 2014, 35(2):199-206.
[14] 林小兵, 刘莉萍, 田景春, 等.川西坳陷中部须家河组五段致密砂岩储层特征及主控因素[J].石油与天然气地质, 2014, 35(2):224-230. Lin Xiaobing, Liu Liping, Tian Jingchun, et al.Characteristics and controlling factors of tight sandstone reservoirs in the 5th member of Xujiahe Formation in the central of western Sichuan Depression[J].Oil & Gas Geology, 2014, 35(2):224-230.
[15] 王瑞飞, 陈明强.储层沉积—成岩过程中孔隙度参数演化的定量分析——以鄂尔多斯盆地沿25区块、庄40区块为例[J].地质学报, 2007, 81(10):1432-1437. Wang Ruifei, Chen Mingqiang.Quantitative analysis of porosity evolution during the reservoir sedimentation-diagenesis——Taking the Yan 25 and Zhuang 40 areas in the Ordos Basin as examples[J]..Acta Geologica Sinica, 2007, 81(10):1432-1437.
[16] Beard D C, Weyl P K.Influence of texture on porosity and permeability of unconsolidated Sand[J].AAPG Bulletin, 1973, 57(2):349-369.

不同类型低渗透储层有效厚度物性下限及其差异性成因——以陕北斜坡中部S地区中生界为例

Porosity and permeability cutoffs for calculating effective thickness of different types of low-permeability reservoirs and causes of their differences: a case study of the Mesozoic in S region of central Shaanbei slope

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

[1]	吴伟涛, 冯炎松, 费世祥, 王一妃, 吴和源, 杨旭东. 鄂尔多斯盆地神木气田二叠系石千峰组5段致密气富集因素及有利区预测[J]. 石油与天然气地质, 2024, 45(3): 739-751.
[2]	刘成林, 丁振刚, 范立勇, 康锐, 洪思婕, 朱玉新, 陈践发, 王海东, 许诺. 鄂尔多斯盆地含氦天然气地球化学特征与富集影响因素[J]. 石油与天然气地质, 2024, 45(2): 384-392.
[3]	万俊雨, 朱建辉, 姚素平, 张毅, 李春堂, 张威, 姜海健, 王杰. 鄂尔多斯盆地中、东部奥陶系马家沟组成烃生物及烃源岩地球生物学评价[J]. 石油与天然气地质, 2024, 45(2): 393-405.
[4]	杨丽华, 刘池洋, 黄雷, 周义军, 刘永涛, 秦阳. 鄂尔多斯盆地古峰庄地区疑似侵入岩体的发现及其地质意义[J]. 石油与天然气地质, 2024, 45(1): 142-156.
[5]	师良, 范柏江, 李忠厚, 余紫巍, 蔺子瑾, 戴欣洋. 鄂尔多斯盆地中部三叠系延长组7段烃组分的运移分异作用[J]. 石油与天然气地质, 2024, 45(1): 157-168.
[6]	曹江骏, 王继平, 张道锋, 王龙, 李笑天, 李娅, 张园园, 夏辉, 于占海. 深层致密砂岩储层成岩演化对含气性的影响[J]. 石油与天然气地质, 2024, 45(1): 169-184.
[7]	胡宗全, 王濡岳, 路菁, 冯动军, 刘粤蛟, 申宝剑, 刘忠宝, 王冠平, 何建华. 陆相页岩及其夹层储集特征对比与差异演化模式[J]. 石油与天然气地质, 2023, 44(6): 1393-1404.
[8]	刘成林, 丁振刚, 陈践发, 范立勇, 康锐, 王海东, 洪思婕, 田安琦, 陈学勇. 鄂尔多斯盆地氦源岩特征及生氦潜力[J]. 石油与天然气地质, 2023, 44(6): 1546-1554.
[9]	李勇, 朱治同, 吴鹏, 申陈州, 高计县. 鄂尔多斯盆地东缘上古生界致密储层含气系统压力演化[J]. 石油与天然气地质, 2023, 44(6): 1568-1581.
[10]	曾溅辉, 张亚雄, 张在振, 乔俊程, 王茂云, 陈冬霞, 姚泾利, 丁景辰, 熊亮, 刘亚洲, 赵伟波, 任克博. 致密砂岩气藏复杂气-水关系形成和分布主控因素及分布模式[J]. 石油与天然气地质, 2023, 44(5): 1067-1083.
[11]	梁岳立, 赵晓明, 张喜, 李树新, 葛家旺, 聂志宏, 张廷山, 祝海华. 轨道周期约束下海-陆过渡相页岩层系高精度层序界面识别及其地质意义[J]. 石油与天然气地质, 2023, 44(5): 1231-1242.
[12]	李涵, 付金华, 季汉成, 张雷, 佘钰蔚, 官伟, 井向辉, 王红伟, 曹茜, 刘刚, 魏嘉怡. 鄂尔多斯盆地西南部上古生界风化壳型铝土岩系发育过程及优势储层分布规律[J]. 石油与天然气地质, 2023, 44(5): 1243-1255.
[13]	李晓, 郭鹏, 胡彦智, 李士祥, 杨伟伟. 陆相页岩压裂试验与数值模拟[J]. 石油与天然气地质, 2023, 44(4): 1009-1019.
[14]	高嘉洪, 金之钧, 梁新平, 李士祥, 杨伟伟, 朱如凯, 杜晓宇, 刘全有, 李彤, 董琳, 李鹏, 张旺. 火山活动对鄂尔多斯盆地三叠系长7段淡水湖盆富营养化与沉积水体介质环境的影响[J]. 石油与天然气地质, 2023, 44(4): 887-898.
[15]	王梓毅, 付金华, 刘显阳, 李士祥, 张昌虎, 梁新平, 董琳. 鄂尔多斯盆地上三叠统延长组7段埋藏期热液活动对页岩油储层的影响[J]. 石油与天然气地质, 2023, 44(4): 899-909.