鄂尔多斯盆地延长组特低渗透砂岩微观孔喉特征的定量评价

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摘要为从微观角度认识特低渗透砂岩的微观孔喉特征，明确制约储层品质和开发效果的关键因素，利用恒速压汞技术对鄂尔多斯盆地延长组的样品进行测试，定量表征孔喉特征参数。结果表明：特低渗透砂岩孔隙之间的差异很小，孔隙半径基本分布于70～225 μm范围内，峰值在110 μm左右；渗透率小时，喉道分布集中，小喉道含量高，喉道对渗透率的贡献也集中分布，贡献峰值大；喉道半径的分布范围随着渗透率的增大而变宽，大喉道含量及其对渗透率的贡献也随之增大。平均喉道半径与渗透率的相关性较好，渗透率小于1.0×10－3 μm2时，平均喉道半径的波动幅度大，特低渗透砂岩敏感的根源在于特殊的喉道特征，物性(尤其是渗透率)差的根本原因在于细小喉道所占比例较大。物性(尤其是渗透率)越好，有效孔隙、喉道越发育。微观孔喉特征的差异主要体现在喉道的大小及其分布上，喉道决定储层品质，影响开发效果。

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关键词 ：岩石力学, 孔隙特征, 喉道分布, 有效孔喉体积, 恒速压汞, 特低渗透砂岩, 鄂尔多斯盆地

Abstract：The samples of Yanchang group in Ordos basin are tested with constant rate mercury penetration technique，pore throat characteristics parameters are characterized quantitatively in order to recognize the micro-pore throat characteristics and to make definite the key factors controlling reservoir quality and development effect. The results show that difference of pore is little，pore radius distributes in 70–225 μm，peak value is about 110 μm. When the permeability is low，the throat distributes assembly，the content of small throat is high，the contribution of throat to permeability also distributes intensively and contribution of peak value is big. Distribution range of throat radius will become wide，large pore content will increase and its contribution will broaden with the increasing permeability. Average pore radius and permeability present good correlation. Fluctuation amplitude of average pore radius is great when the permeability is less than 1.0×10－3 μm2. Sensibility of extra-low permeability sandstone roots in particular throat characteristics. The poor physical properties(especially permeability) lie in the high content of small throat. The well the physical property is，the more the effective pore and throat develop. Difference of micro-pore throat mainly is presented in the pore size and its distribution. The pore controls the reservoir quality and affects development effect.

Key words： rock mechanics pore characteristics throat distribution effective pore throat volume constant rate mercury penetration extra-low permeability sandstone Ordos basin

收稿日期: 2012-04-23

引用本文:

高辉1，任国富2，3，穆谦益2，3. 鄂尔多斯盆地延长组特低渗透砂岩微观孔喉特征的定量评价[J]. 岩石力学与工程学报, 2013, 32(s2): 3116-3122.
GAO Hui1，REN Guofu2，3，MU Qianyi2，3. QUANTITATIVE EVALUATION OF MICRO-PORE THROAT CHARACTERISTICS IN EXTRA-LOW PERMEABILITY SANDSTONE OF YANCHANG GROUP，ORDOS BASIN. , 2013, 32(s2): 3116-3122.

链接本文:

http://www.rockmech.org/CN/Y2013/V32/Is2/3116

[3]	SUN W，QU Z，TANG G. Characterization of water injection in low permeability rock using sandstone micromobles[J]. Journal of Petroleum Technology，2004，56(5)：71-72. " target="_blank">
[7]	马明福，李薇，刘亚村. 苏丹Melut盆地北部油田储集层孔隙结构特征分析[J]. 石油勘探与开发，2005，32(6)：121-124.(MA Mingfu，LI Wei，LIU Yacun. Pore structure characteristics analysis of the oilfield in North Melut Basin，Sudan[J]. Petroleum Exploration and Development，2005，32(6)：121-124.(in Chinese)) " target="_blank">
[20]	赵惊蛰，李书恒，屈雪峰，等. 特低渗透油藏开发压裂技术[J]. 石油勘探与开发，2002，29(5)：93-95.(ZHAO Jingzhe，LI Shuheng，QU Xuefeng，et al. Fracturing technique of super-low permeability reservoir development[J]. Petroleum Exploration and Development，2002，29(5)：93-95.(in Chinese)) " target="_blank">
[21]	胡志明，把智波，熊伟，等. 低渗透油藏微观孔隙结构分析[J].大庆石油学院学报，2006，30(3)：51-53.(HU Zhiming，BA Zhibo，XIONG Wei，et al. Analysis of micro pore structure in low permeability reservoirs[J]. Journal of Daqing Petroleum Institute，2006，30(3)：51-53.(in Chinese)) " target="_blank">
[23]	林玉保，张江，刘先贵，等. 喇嘛甸油田高含水后期储集层孔隙结构特征[J]. 石油勘探与开发，2008，35(2)：215-219.(LIN Yubao，ZHANG Jiang，LIU Xiangui，et al. Pore structure features of reservoirs at late high water-cut stage，Lamadian Oilfield，Daqing[J]. Petroleum Exploration and Development，2008，35(2)：215-219.(in Chinese))
[8]	SALLER A H，DICKSON J A D. Matsuda Fumiaki.Evolution and distribution of porosity associated with subaerial exposure in Upper Paleozoic platform limestones，west Texas[J]. American Association of Petroleum Geologists Bulletin，1999，83(11)：1 835-1 854. " target="_blank">
[10]	BLOCH S，HELMOND K P. Approached to prediction resercoir quality in sandstones[J]. American Association of Petroleum Geologists Bulletin，1995，79(1)：97-115. " target="_blank">
[12]	张创，孙卫，解伟. 低渗储层有效喉道半径下限研究：以苏北盆地高邮凹陷沙埝南地区为例[J]. 地质科技情报，2011，30(1)：103-107.(ZHANG Chuang，SUN Wei，XIE Wei. Cutoff value of effective throat radius in low permeability reservoir：an example of South Shanian area in Gaoyou depression，Subei basin[J]. Geological Science and Technology Information，2011，30(1)：103-107.(in Chinese)) " target="_blank">
[14]	PITTMAN E D. Relationship of porosity and permeability to various parameters derived from mercury injection：capillary pressure curves for sandstone[J]. American Association of Petroleum Geologists Bulletin，1992，76(2)：191-198. " target="_blank">
[1]	全洪慧，朱玉双，张洪军，等. 储层孔隙结构与水驱油微观渗流特征——以安塞油田王窑区长6油层组为例[J]. 石油与天然气地质，2011，32(6)：952-960.(QUAN Honghui，ZHU Yushuang，ZHANG Hongjun，et al. Reservoir pore structure and micro-flow characteristics of waterflooding：a case study from Chang-6 reservoir of Wangyao block in Ansai oilfield[J]. Oil and Gas Geology，2011，32(6)：952-960.(in Chinese))
[5]	张大伟，陈发景，程刚. 松辽盆地大情字井地区高台子油层储集层孔隙结构的微观特征[J]. 石油与天然气地质，2006，27(5)：668-674.(ZHANG Dawei，CHEN Fajing，CHENG Gang. The microscopic features of pore structure in Gaotaizi oil layer of Daqingzijing area[J]. Oil and Gas Geology，2006，27(5)：668-674.(in Chinese))
[22]	于俊波，郭殿军，王新强. 基于恒速压汞技术的低渗透储层物性特征[J]. 大庆石油学院学报，2006，30(2)：22-25.(YU Junbo，GUO Dianjun，WANG Xinqiang. Study of microscopic behaviors of low permeable reservior through constant velocity mercury injection technique[J]. Journal of Daqing Petroleum Institute，2006，30(2)：22-25.(in Chinese)) " target="_blank">
[2]	宋广寿，高辉，高静乐，等. 西峰油田长8储层微观孔隙结构非均质性与渗流机制试验[J]. 吉林大学学报：地球科学版，2009，39(1)：53-59.(SONG Guangshou，GAO Hui，GAO Jingle，et al. Experimental of microscopic pore structure heterogeneity and flow mechanism of Chang 8 reservoir in Xifeng oil field[J]. Journal of Jilin University：Earth Science，2009，39(1)：53-59.(in Chinese))
[4]	蔡忠. 储集层孔隙结构与驱油效率关系研究[J]. 石油勘探与开发，2000，27(6)：45-49.(CAI Zhong. The study on the relationship between pore structure and displacement efficiency[J]. Petroleum Exploration and Development，2000，27(6)：45-49.(in Chinese)) " target="_blank">
[6]	林景晔. 砂岩储集层孔隙结构与油气运聚的关系[J]. 石油学报，2004，25(1)：44-47.(LIN Jingye. Relationship of pore structure of sand reservoir with hydrocarbon migration and accumulation[J]. Acta Petrolei Sinica，2004，25(1)：44-47.(in Chinese)) " target="_blank">
[9]	黄思静，郎咸国，兰叶芳，等. 储层孔隙度-渗透率关系曲线中的截止孔隙度与储层质量[J]. 成都理工大学学报：自然科学版，2011，38(6)：593-602.(HUANG Sijing，LANG Xianguo，LAN Yefang，et al. Porosity cutoff of porosity-permeability curve and the reservoir quality[J]. Journal of Chengdu University of Technology：Science and Technology，2011，38(6)：593-602.(in Chinese)) " target="_blank">
[11]	TAYLOR T R，GILES M R，HATHON L A. Sandstone diagenesis and reservoir quality prediction：models myths and reality[J]. American Association of Petroleum Geologists Bulletin，2010，94(8)：1 093-1 132. " target="_blank">
[13]	姜洪福，陈发景，张云春，等. 松辽盆地三肇地区扶、杨油层储集层孔隙结构及评价[J]. 现代地质，2006，20(3)：465-472.(JIANG Hongfu，CHEN Fajing，ZHANG Yunchun，et al. The pore texture and evaluation of fuyang oil reservoirs in the Sanzhao area of Songliao basin[J]. Geoscience，2006，20(3)：465-472.(in Chinese)) " target="_blank">
[15]	孙卫，史成恩，赵惊蛰，等. X-CT扫描成像技术在特低渗透储层微观孔隙结构及渗流机制研究中的应用——以西峰油田庄19井区长82储层为例[J].地质学报，2006，80(5)：775-781.(SUN Wei，SHI Cheng?en，ZHAO Jingzhe，et al. Application of X-CT scanned image technique in the research of micro-pore texture and percolation mechanism in ultra-permeable oil field—taking an example from chang 82 formation in the Xifeng oil field[J]. Acta Geologica Sinica，2006，80(5)：775-781.(in Chinese))
[17]	吴小斌，侯加根，孙卫. 特低渗砂岩储层微观结构及孔隙演化定量分析[J]. 中南大学学报：自然科学版，2011，42(11)：3 438-3 446. (WU Xiaobin，HOU Jiagen，SUN Wei. Microstructure characteristics and quantitative analysis on porosity evolution of ultra-low sandstone reservoir[J]. Journal of Central South University：Science and Technology，2011，42(11)：3 438-3 446.(in Chinese)) " target="_blank">
[19]	王玉普，计秉玉，郭万奎. 大庆外围特低渗透特低丰度油田开发技术研究[J]. 石油学报，2006，27(6)：70-74.(WANG Yupu，JI Bingyu，GUO Wankui. Effective development technique for peripheral reservoirs with ultra-low permeability and ultra-low abundance in Daqing Oilfield[J]. Acta Petrolei Sinica，2006，27(6)：70-74.(in Chinese)) " target="_blank">
[16]	郝明强，刘先贵，胡永乐，等. 微裂缝性特低渗透油藏储层特征研究[J]. 石油学报，2007，28(5)：93-98.(HAO Mingqiang，LIU Xiangui，HU Yongle，et al. Reservoir characteristics of micro-fractured ultra-low permeability reservoirs[J]. Acta Petrolei Sinica，2007，28(5)：93-98.(in Chinese)) " target="_blank">
[18]	王瑞飞，陈明强，孙卫. 特低渗透砂岩储层微观孔隙结构分类评价[J]. 地球学报，2008，29(2)：213-220.(WANG Ruifei，CHEN Mingqiang，SUN Wei. Classification and evaluation of micro-pore structures in the ultra-low permeability sandstone reservoir[J]. Acta Geoscientica Sinica，2008，29(2)：213-220.(in Chinese)) " target="_blank">
[24]	杨正明，张英芝，郝明强，等. 低渗透油田储层综合评价方法[J].石油学报，2006，27(2)：64-67.(YANG Zhengming，ZHANG Yingzhi，HAO Mingqiang，et al. Comprehensive evaluation of reservoir in low-permeability oilfields[J]. Acta Petrolei Sinica，2006，27(2)：64-67.(in Chinese)) " target="_blank">
[25]	杨正明，姜汉桥，朱光亚，等. 低渗透含水气藏储层评价参数研究[J]. 石油学报，2008，29(2)：252-255.(YNAG Zhengming，JIANG Hanqiao，ZHU Guangya，et al. Research on reservoir evaluation index for low-permeability water-bearing gas reservoir[J]. Acta Petrolei Sinica，2008，29(2)：252-255.(in Chinese)) " target="_blank">