收稿日期: 2009-07-09
修回日期: 2009-12-21
网络出版日期: 2010-06-10
基金资助
国家重点基础研究发展规划（“973”）项目（编号：2007CB209503；2008ZX05007-002）资助.
Pore Structure Features of Sandstone Reservoirs in the Upper Triassic Xujiahe Formation in the Central Part of Sichuan Basin
Received date: 2009-07-09
Revised date: 2009-12-21
Online published: 2010-06-10
碎屑岩储层的孔隙特征是油气勘探开发中最重要的研究内容之一，更是气藏精细描述、储层综合评价的重要内容，通过采用铸体薄片观察、扫描电镜观察及压汞曲线分析等多种技术手段，对川中地区上三叠统须家河组储层的孔隙类型、孔隙组合及孔隙结构等方面进行了深入的研究。研究区须家河组储层孔隙类型可分为原生残余粒间孔、次生粒间溶蚀孔、粒内溶孔、铸模孔、晶间孔和微裂缝6种主要孔隙类型；孔隙结构可分为4种类型，即:Ⅰ类粗歪双峰式—大孔中粗喉型、Ⅱ类中歪双峰式—中孔中细喉型、Ⅲ类细歪双峰式—中小孔细喉型和Ⅳ类单峰式—小孔微细喉型，这4种孔隙类型分别对应残余原生粒间孔+粒间溶孔型、粒间溶孔+粒内溶孔型、溶孔+铸模孔型和微孔型孔隙组合类型；其中Ⅰ类粗歪双峰式和Ⅱ类中歪双峰式位于有利的峰点结构区，有利于油气的聚集，为中高产能储层孔隙结构。
谢武仁, 杨威, 杨光, 杨玉凤, 谢增业, 金惠, 朱秋影, 沈珏红 . 川中地区上三叠统须家河组砂岩储层孔隙结构特征[J]. 天然气地球科学, 2010 , 21(3) : 435 -440 . DOI: 10.11764/j.issn.1672-1926.2010.03.435
The pore texture feature in clastic reservoir is not only a hot topic of the oil and gas exploration and development, but also an important task of fine description of gas reservoir and comprehensive reservoir evaluation. By technical tools such as cast thin section, scanning electron microscope, cast image analysis, high-pressure mercury injection and constant velocity mercury injection, etc, we discussed the pore types, pore combinations and pore textures in the upper Triassic Xujiahe Formation clastic reservoirs in the central part of Sichuan basin. There are six kinds of pores, i.e. remainder intergranular pore, dissolved pores between grains, dissolved pores in grains, mould pore, intracrystalline pore and micro-fissure. The pore structure can be classified for types, such as Ⅰ type of bold skewness double peaking\|large pore with medium-large throat, Ⅱ type of middle skewness double peaking-middle pore with small-middle throat, Ⅲ type of gentle skewness double peaking-small-middle pore with small throat, and Ⅳ type of single peak\small pore with micro throat. The four types of pore structure corresponded to remainder intergranular pore-dissolved pores between grains type, dissolved pores between grains-dissolved pores in grains type, dissolved pores in grains-mould pore type, and microporetype, respectively. Ⅰ and Ⅱ types located in the favorable structure area as middle-high producing petroleum layer are beneficially accumulated for the oil and gas．
［1］Guan Deshi，Niu Jiayu，Guo Lina，et al.Unconventional Petroleum Geology in China［M］.Beijing:Petroleum Industry Press，1995.［关德师，牛嘉玉，郭丽娜，等.中国非常规油气地质［M］.北京:石油工业出版社, 1995.］
［2］Dong Xiaoxia，Mei Lianfu，Quan Yongwang，et al.Types of tight sand gas accumulation and its exploration prospect［J］.Natural Gas Geoscience，2007，28(3)：351- 355.［董晓霞，梅廉夫，全永旺，等.致密砂岩气藏的类型和勘探前景［J］.天然气地球科学,2007，28(3)：351-355.］
［3］ Spencer C W.Geologic aspects of tight gas reservoirs in the Rocky mountain region［J］.Journal of Petroleum Technology，1985，37(8)：1308-1314.
［4］ Jiang Fujie，Pang Xiongqi，Jiang Zhenxue，et al.Physical simulation experiment of gas charging in tight sandstone［J］.Geological Review，2007，53(6)：844- 849.［姜福杰，庞雄奇，姜振学，等.致密砂岩气藏成藏过程的物理模拟实验［J］.地质评论,2007，53(6)：844- 849.］
［5］Dai Jinxing，Pei Xigu，Qi Houfa.China Natural Gas Geology［M］.2nd edition.Beijing:Petroleum Industry Press，1996.［戴金星，裴锡古，戚厚发.中国天然气地质学［M］.第二版.北京:石油地质出版社, 1996.］
［6］Wang Jinqi.Prospects for the large sized tight sandstone gas bearing regions in China［J］.Natural Gas Industry，2000，20(1)：10-16.［王金琪.中国大型致密砂岩含气区展望［J］.天然气工业，2000，20(1)：10- 16.］
［7］Dai Jinxing.Oil and gas reservoir in the syncline［J］.Acta Petrolei Sinica，1983，4(4)：27- 30.［戴金星.向斜中的油、气藏［J］.石油学报，1983，4(4)：27- 30.］［8］ Ye Jun.Reconsideration of deep basin gas in the western Sichuan depression of the Sichuan basin［J］.Petroleum Geology & Experiment，2008，30(2)：109-114.［叶军.再议四川盆地西部坳陷深盆气［J］.石油实验地质， 2008，30(2):109-114.］
［9］Wei Yunsheng，Shao Hui，Jia Ailin，et al.Gas water distribution model and control factors in low permeability high water saturation sandstone gas reservoirs［J］.Natural Gas Geoscience，2009，20(5)：822- 826.［位云生，邵辉，贾爱林，等.低渗透高含水饱和度砂岩气藏气水分布模式及主控因素研究［J］.天然气地球科学， 2009，20(5)：822- 826.］
［10］Wang Ming，Li Hongqi，Shi Jinhua，et al.Origin of low resistivity reservoirs of Xujiahe Formation of the upper Triassic in middle Sichuan area［J］.Geological Science and Technology Information, 2008，27(3):98- 102.［王明，李洪奇，石金华，等.川中地区上三叠统须家河组低阻成因［J］.地质科技情报, 2008，27(3)：98- 102.］
［11］ Zhang Hao，Kang Yili，Chen Yijian，et al.The study of geology course and experiment simulation for forming ultra- low water saturation in tight sandstones gas reservoirs［J］.Natural Gas Geoscience, 2005，16(2)：186- 189.［张浩，康毅力，陈一健，等.致密砂岩气藏超低含水饱和度形成地质过程及实验模拟研究［J］.天然气地球科学, 2005，16(2)：186- 189.］
［12］Si Ma Liqiang，Miu Xiangxi，Wu Feng，et al.Analysis of the difference between deep induction logging and deep lateral logging in the low resistivity reservoirs in Guang′an area［J］.Natural Gas Industry，2009，29(1)：48-50.［司马立强，缪祥禧，吴丰，等.广安地区低阻储层深侧向与深感应差异现象原因分析［J］.天然气工业， 2009，29(1)：48-50.］
［13］Yang Xiaoping，Zhao Wenzhi，Zou Caineng，et al.Origin of low- permeability reservoir and distribution of favorable reservoir［J］.Acta Petrolei Sinica，2007，28(4)：57-61.［杨晓萍，赵文智，邹才能，等.低渗透储层成因机理及优质储层形成与分布［J］.石油学报，2007，28(4)：57-61.］
［14］ Zou Caineng，Tao Shizhen，Gu Zhidong，et al.Formation conditions and distribution rules of large lithologic oil- gas fields with low abundance in China［J］.Acta Geologica Sinca, 2006，80(11):1739- 1751.［邹才能，陶士振，谷志东，等.中国低丰度大型岩性油气田形成条件和分布规律［J］.地质学报,2006，80(11)：1739- 1751.］［15］ Yang Xiaoping，Gu Jiayu.General feature of reservoir in coal- bearing formation and distribution of the favorable reservoir［J］.Acta Sedimentologica Sinica，2007，25(6)：891- 895.［杨晓萍，顾家裕.煤系地层中储层基本特征与优质储层的形成与分布［J］.沉积学报,2007，25(6)：891- 895.］
［16］ Zhu Rukai, Zhao Xia, Liu Liuhong, et al.Depositional system and favorable reservoir distribution of Xujiahe Formation in Sichuan basin［J］.Petroleum Exploration and Development, 2009, 36(1):46- 55.［朱如凯，赵霞，刘柳红，等.四川盆地须家河组沉积体系与有利储集层分布［J］.石油勘探与开发，2009，36(1)：46-55.］［17］ Zhu Rukai, Zou Caineng, Zhang Nai,et al.Diagenetic fluids evolution and genetic mechanism of tight sandstonegas reservoirs:A case study of upper Triassic Xujiahe Formation in Sichuan basin［J］.Science in China:Series D, Earth Sciences，2009,39(3):327-339.［朱如凯，邹才能，张鼐，等.致密砂岩气藏储层成岩流体演化与致密成因机理--以四川盆地上三叠统须家河组为例［J］.中国科学：D辑，地球科学， 2009，39(3)：327-339.］
［18］ Xie Zengye，Yang Wei，Gao Jiayu，et al.The characteristics of fluid inclusion of Xujiahe Formation reservoirs in central- south Sichuan basin and its pool- forming significance［J］.Bulletin of Mineralogy, Petrology and Geochemistry，2009，28(1)：48- 52.［谢增业，杨威，高嘉玉，等.川中-川南地区须家河组流体包裹体特征及其成藏指示意义［J］.矿物岩石地球化学通报，2009，28(1)：48-52.］
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