天然气地球科学

• 天然气地质学 • 上一篇    下一篇

鄂尔多斯盆地苏里格气田苏6区块盒8段致密砂岩储层微观孔隙结构特征及其意义

毕明威,陈世悦,周兆华,商琳,郑国强,张满郎,高立祥   

  1. 1.中国石油大学地球科学与技术学院,山东 青岛 266580;
    2.中国石油勘探开发研究院廊坊分院,河北 廊坊 065007;
    3.中国石油冀东油田公司勘探开发研究院,河北 唐山 063004
  • 收稿日期:2014-12-14 修回日期:2015-02-07 出版日期:2015-10-10 发布日期:2015-10-10
  • 作者简介:毕明威(1986-),男,山东威海人,博士研究生,主要从事沉积学及岩相古地理学研究. E-mail:mingweibi@sina.com.
  • 基金资助:

    国家科技重大专项“致密砂岩气有效开发评价技术”(编号:2011ZX05013-002)资助.

Characteristics and Significance of Microscopic Pore Structure in Tight Sandstone Reservoir of the 8th Member of Lower Shihezi Formation in the Su6 Area of Sulige Gasfield

BI Ming-wei,CHEN Shi-yue,ZHOU Zhao-hua,SHANG Lin,ZHENG Guo-qiang,ZHANG Man-lang,GAO Li-xiang   

  1. 1.School of Geosciences,China University of Petroleum,Qingdao 266580,China;
    2.Langfang Branch,PetroChina Research Institute of Petroleum Exploration and Development,Langfang 065007,China;
    3.Jidong Oilfield Company,Petrochina,Tangshan 063004,China
  • Received:2014-12-14 Revised:2015-02-07 Online:2015-10-10 Published:2015-10-10

摘要:

应用铸体薄片、扫描电镜、三维CT扫描、高压压汞和恒速压汞等方法,对苏里格气田苏6区块盒8段致密砂岩储层的微观孔隙结构特征进行定量表征,探讨孔隙结构差异性成因,进而优选出反映致密砂岩微观孔隙结构特征的储层评价参数。结果表明:储层孔隙类型主要为(颗粒、胶结物)溶孔、黏土矿物晶间孔及少量残余粒间孔;不同渗透率的储层孔隙半径差别不明显,但喉道半径分布差异较大,储层越致密,喉道半径分布范围越小、小喉道所占比例越高,喉道占有效储集空间的比例也越高;中粗粒岩屑石英砂岩和中粗粒岩屑砂岩结构成熟度高、原始孔隙度高、溶蚀作用强烈,溶蚀孔隙所占比高,形成的半径大于1μm的孔喉含量显著增加;细粒(长石)岩屑砂岩分选差、原始孔隙度低,溶蚀作用弱,孔隙类型主要为黏土矿物晶间孔,形成的孔喉主要为半径小于1μm的孔喉;主流喉道半径对储层渗流能力起主要控制作用,并且可以很好地反映储层的孔喉分布、有效储集空间及非均质性等微观孔隙结构特征,应当作为致密砂岩储层重要的储层评价参数。

关键词: 苏里格气田, 盒8段, 致密砂岩储层, 微观孔隙结构

Abstract:

Microscopic pore structure characteristics of tight sandstone reservoir of the 8th member of Lower Shihezi Formation in the Su6 area of Sulige Gasfield was quantitatively analyzed by means of casting thin sections,scanning electron microscope,3D X-ray computed tomography,high pressure mercury injection,constant-rate mercury penetration.The purpose was to discuss the causes of differences of microscopic pore structures,and further to screen evaluation parameter which could reflect the microscopic pore structure characteristics of tight sandstone reservoir.The results are as follows.Reservoir space types include (grains and cements) dissolved pores,clay-mineral intercrystalline pores and primary remained intergranular pores.Reservoirs with different permeability have less differences in pore radius but obvious differences in throat radius.The reservoir is more tight with smaller range and greater proportion of fine pore-throat.The throat also accounted for higher proportion of effective reservoir space.The medium-to-coarse grained lithic sandstones and medium-to-coarse grained lithic quartz sandstones have higher textural maturity and primary porosity,which have experienced strong dissolution.The dissolved pores are large proportion of total pore content,and the pore-throat radius content increases significantly,which are more than 1μm in the two types of medium-to-coarse grained sandstones.The small grained (feldspar) lithic sandstones have lower textural maturity and primary porosity,which have experienced weak dissolution.The pore types in the small grained sandstones are mainly clay-mineral inter-crystalline pores,and the pore-throat radius in which is less than 0.1μm.Mainstream throat radius plays the main controlling effect on reservoir permeability,and can well reflect the microscopic pore structure,such as reservoir pore-throat distribution,effective reservoir space and heterogeneity.In conclusion,mainstream throat radius should be an important reservoir evaluation parameter for the tight sandstone reservoir.

Key words: Sulige Gasfield, 8th member of the Lower Shihezi Formation, Tight sandstone reservoir, Microscopic pore structure

中图分类号: 

  • TE122.2

[1]Zou Caineng,Zhu Rukai,Wu Songtao,et al.Types,characteristics,genesis and prospect of conventional and unconventional hydrocarbon accumulations:Taking tight oil and tight gas in China as an instance[J].Acta Petrolei Sinica,2012,33(2):173-180.[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):173-180.]
[2]You Yuan,Niu Xiaobing,Xin Honggang,et al.Research on micro pore structure of overseas tight oil reservoir and its influence on Ordos Basin[J].Oil Forum,2013,(1):12-18.[尤源,牛小兵,辛红刚,等.国外致密油储层微观孔隙结构研究及其对鄂尔多斯盆地的启示[J].石油科技论坛,2013,(1):12-18.]
[3]Bai Bin,Zhu Rukai,Wu Songtao,et al.Multi-scale method of Nano(Micro)-CT study on microscopic pore structure of tight sandstone of Yanchang Formation,Ordos Basin[J].Petroleum Exploration and Development,2013,40(3):329-333.[白斌,朱如凯,吴松涛,等.利用多尺度CT成像表征致密砂岩微观孔喉结构[J].石油勘探与开发,2013,40(3):329-333.]
[4]Bai Yongqiang,Li Na,Yang Xu,et al.Analysis ans applications of microscopic pore structure characterization of oil reservoir by atomic force microscopy[J].Journal of Northeast Petroleum University,2013,37(1):45-50.[白永强,李娜,杨旭,等.基于原子力显微镜表征的含油储层微观孔隙结构分析及应用[J].东北石油大学学报,2013,37(1):45-50.]
[5]Nan Junxiang,Liu Boqing.Characteristics of Upper Paleozoic main clastic reservoir of Shenmu area in Ordos Basin[J].Natural Gas Geoscience,2013,24(1):54-61.[南珺祥,刘博卿.鄂尔多斯盆地神木地区上古生界主力气层碎屑岩储层特征[J].天然气地球科学,2013,24(1):54-61.]
[6]Chen Huanqing,Cao Chen,Liang Shuxian,et al.Research advances on reservoir pores[J].Natural Gas Geoscience,2013,24(2):227-237.[陈欢庆,曹晨,梁淑贤,等.储层孔隙结构研究进展[J].天然气地球科学,2013,24(2):227-237.]
[7]Yang Feng,Ning Zhengfu,Kong Detao,et al.Pore structure of shales from high pressure mercury injection and nitrogen adsorption method[J].Natural Gas Geoscience,2013,24(3):450-455.[杨峰,宁正福,孔德涛,等.高压压汞法和氮气吸附法分析页岩孔隙结构[J].天然气地球科学,2013,24(3):450-455.]
[8]Lame O,Bellet D,Di Michiel M,et al.Bulk observation of metal powder sintering by X-ray synchrotron microtomography[J].Acta Materialia,2004,52(4):977-984.
[9]Tomutsa L,Radmilovic V.Focused Ion Beam Assisted Three Dimensional Rock Imaging at Submicron Scale[R].International Symposium of the Society of Core Analysts held in Pau,France,Sep.21-24,2003.SCA 2003-47,2003.
[10]Tomusta L,Silin D B,Radmilovic V.Analysis of chalk petrophysical properties by means of submicron-scale pore imaging and modeling[J].SPE Reservoir Evaluation and Engineering,2007,10(3):285-293.
[11]Attwood D.Microscopy:Nanotomography comes of age[J].Nature,2006,442(10):642-643.
[12]Sakdinawat A,Attwood D.Nanoscale X-ray imaging[J].Nature Photonics,2010,267(4):840-848.
[13]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):206-214.[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结构特征[J].石油实验地质,2011,33(2):206-214.]
[14]Wen Huaguo,Zheng Rongcai,Gao Hongcan,et al.Sedimentary facies of the 8th member of lower Shihezi Formation in Su6 area,Sulige Gas Field[J].Acta Sedimentologica Sinica,2007,25(1):90-96.[文华国,郑荣才,高红灿,等.苏里格气田苏6井区下石盒子组盒8段沉积相特征[J].沉积学报,2007,25(1):90-96.]
[15]Wang Xiuping,Mou Chuanlong.Diagenesis and diagenetic facies of reservoir in He 8 section of Shihezi Formation in east Ⅱ part of Sulige Gas Field[J].Natural Gas Geoscience,2013,24(4):678-689.[王秀平.牟传龙.苏里格气田东二区盒8段储层成岩作用与成岩相研究[J].天然气地球科学,2013,24(4):678-689.]
[16]Yang Yong,Da Shipan,Xu Xiaorong.Pore structure study of P1-2s H8 reservoir in Sulige Gasfield[J].Natural Gas Industry,2005,25(4):50-52.[杨勇,达世攀,徐晓蓉.苏里格气田盒8段储层孔隙结构研究[J].天然气工业,2005,25(4):50-52.]
[17]Fan Aiping,Zhao Juan,Yang Renchao,et al.Pore structure of reservoir rocks in Shan1Ⅱ block of Sulige Gasfield[J].Natural Gas Geoscience,2011,22(3):482-487.[樊爱萍,赵娟,杨仁超,等.苏里格气田东二区山1段、盒8段储层孔隙结构特征[J].天然气地球科学,2011,22(3):482-487.]
[18]Ran Xinquan,Li Anqi.Sulige Gas Field Development Approach[M].Beijing:Petroleum Industry Press,2008.[冉新权,李安琪.苏里格气田开发论[M].北京:石油工业出版社,2008.]
[19]Zhong Dakang,Zhu Xiaomin,Wang Hongjun.Characteristics and formation mechanism analysis of deep buried sandstone reservoirs in China[J].Science in China:Earth sciences,2008,38(supplement 1):11-18.[钟大康,朱筱敏,王红军.中国深层优质碎屑岩储层特征与形成机理分析[J].中国科学:地球科学,2008,38(增刊Ⅰ):11-18.]
[20]Zhang Chuang,Sun Wei,Yang Jianpeng,et al.Pore and pore-throat size distributions of low permeability sandstone reservoir and their differential origin[J].Acta Geologica Sinica,2012,86(2):335-346.[张创,孙卫,杨建鹏,等.低渗砂岩储层孔喉的分布特征及其差异性成因[J].地质学报,2012,86(2):335-346.]
[21]Ye Liyou,Zhong Bing,Xiong Wei,et al.An intergrated evaluation method of Xujiahe low-permeability sandstone gas reservoirs in Middle Sichuan Basin[J].Natural Gas Industry,2012,32(11):43-46.[叶礼友,钟兵,熊伟,等.川中地区须家河组低渗透砂岩气藏储层综合评价方法[J].天然气工业,2012,32(11):43-46.]

[1] 崔明明,王宗秀,樊爱萍,高万里. 鄂尔多斯盆地苏里格气田西南部地层水特征与气水关系[J]. 天然气地球科学, 2018, 29(9): 1364-1375.
[2] 杨海军,张荣虎,杨宪彰,王珂,王俊鹏,唐雁刚,周露. 超深层致密砂岩构造裂缝特征及其对储层的改造作用——以塔里木盆地库车坳陷克深气田白垩系为例[J]. 天然气地球科学, 2018, 29(7): 942-950.
[3] 张艳,张春雷,高世臣. 基于SOM和HSV染色技术的致密砂岩储层地震相分析[J]. 天然气地球科学, 2018, 29(2): 259-267.
[4] 张大智. 利用氮气吸附实验分析致密砂岩储层微观孔隙结构特征——以松辽盆地徐家围子断陷沙河子组为例[J]. 天然气地球科学, 2017, 28(6): 898-908.
[5] 杨智峰,曾溅辉,韩菲,冯枭,冯森,张译丹,乔俊程. 鄂尔多斯盆地西南部长6—长8段致密砂岩储层微观孔隙特征[J]. 天然气地球科学, 2017, 28(6): 909-919.
[6] 庞强, 冯强汉,马妍,张昱煜,彭雪花. 三维地质建模技术在水平井地质导向中的应用——以鄂尔多斯盆地苏里格气田X3-8水平井整体开发区为例[J]. 天然气地球科学, 2017, 28(3): 473-478.
[7] 张凤奇,钟红利,魏登峰,张凤博,柳伟明,刘伟. 鄂尔多斯盆地陕北斜坡东南部长7段致密砂岩油藏成藏物性下限[J]. 天然气地球科学, 2017, 28(2): 232-240.
[8] 周露,莫涛,王振鸿,朱文慧,尚江伟,陈维力,李梅,张琪. 塔里木盆地克深气田超深层致密砂岩储层裂缝分级分组合特征[J]. 天然气地球科学, 2017, 28(11): 1668-1677.
[9] 马志欣,付斌,王文胜,罗川又,张吉,张春阳,魏千盛. 基于层次分析的辫状河储层水平井地质导向策略[J]. 天然气地球科学, 2016, 27(8): 1380-1387.
[10] 樊爱萍, 吴小宁, 王龙, 张春阳, 郭俊锋. 鄂尔多斯盆地苏里格气田西南部成岩矿物转化与储层物性[J]. 天然气地球科学, 2016, 27(7): 1190-1201.
[11] 刘晓鹏,刘燕,陈娟萍,胡爱平. 鄂尔多斯盆地盒8段致密砂岩气藏微观孔隙结构及渗流特征[J]. 天然气地球科学, 2016, 27(7): 1225-1234.
[12] 刘群明,唐海发,冀光,孟德伟,王键. 苏里格致密砂岩气田水平井开发地质目标优选[J]. 天然气地球科学, 2016, 27(7): 1360-1366.
[13] 韩文学,陶士振,姚泾利,麻伟娇. 鄂尔多斯盆地陇东地区长7段致密储层精细表征[J]. 天然气地球科学, 2016, 27(5): 820-826.
[14] 吴浩,刘锐娥,纪友亮,张春林,周勇,张云钊. 典型致密砂岩气储层孔隙结构分类及其意义——以鄂尔多斯盆地盒8段为例[J]. 天然气地球科学, 2016, 27(5): 835-843.
[15] 陈文浩,王志章,潘潞,李汉林,侯加根. 致密砂岩储层流动单元定量识别方法探讨[J]. 天然气地球科学, 2016, 27(5): 844-850.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!