苏里格致密砂岩气田储层岩石孔隙结构及储集性能特征

doi:10.7623/syxb201304005

石油学报 ›› 2013, Vol. 34 ›› Issue (4): 660-666.DOI: 10.7623/syxb201304005

苏里格致密砂岩气田储层岩石孔隙结构及储集性能特征

王国亭¹, 何东博¹, 王少飞², 程立华¹

1. 中国石油勘探开发研究院北京 100083;
2. 中国石油长庆油田公司勘探开发研究院陕西西安 710018

收稿日期:2012-12-09 修回日期:2013-03-26 出版日期:2013-07-25 发布日期:2013-07-04
通讯作者: 王国亭
作者简介:王国亭,男,1982年3月生,2007年毕业于中国地质大学(北京),现为中国石油勘探开发研究院博士研究生,主要从事致密砂岩气藏开发地质方面的研究。Email:wgting_666@126.com
基金资助:
中国石油天然气股份有限公司重大专项(2010E-23)资助。

Characteristics of the pore structure and storage capability of Sulige tight sandstone gasfield

WANG Guoting¹, HE Dongbo¹, WANG Shaofei², CHENG Lihua¹

1. PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China;
2. Research Institute of Exploration & Development, PetroChina Changqing Oilfield Company, Xi'an 710018, China

Received:2012-12-09 Revised:2013-03-26 Online:2013-07-25 Published:2013-07-04

摘要/Abstract

摘要：

基于覆压条件下储层渗透率的变化特征,分析认为苏里格气田整体为致密砂岩气田。在50~60 MPa的覆压下,渗透率相对变化量的1/3次方与常压渗透率的1/2次方表现为线性关系。储层孔隙度表现出一定的覆压敏感性,覆压孔隙度与常压孔隙度比值的1/3次方与常压孔隙度表现出较好的线性关系。扫描电镜及常规压汞实验分析表明,储层孔隙半径表现为百微米级至纳米级尺度的连续分布,渗透率越小的储层微米级孔隙所占比例越少,纳米级孔隙越多;储层喉道半径总体小于1 μm,表现为纳米级尺度的连续分布。束缚饱和度与渗透率具有一定的负相关性,与特定渗透率值对应的束缚饱和度并非定值,而是一个数值范围。拟合分析表明常压孔隙度与单位厚度储能系数呈较好的幂函数关系。由于物性越差的储层覆压敏感性越强,含气饱和度越低,其储气能力也越差,因此蕴含的天然气资源也越小,物性较好的储层则反之。

关键词: 致密砂岩, 孔隙结构, 纳米级孔隙, 束缚水饱和度, 储集性能, 天然气资源

Abstract:

The Sulige gasfield is on the whole regarded as a tight sandstone field based on the permeability of reservoirs under overburden. There exists a linear relation between the permeability with a relative variation range to the 1/3 power and the normal one to the 1/2 power under 50~60 MPa. The porosity of reservoirs is sensitive to overburden stress to some extent and a fairly good linear relation is also found between the 1/3 power of the overburden porosity/normal porosity ratio and the normal porosity. Data of the SEM and mercury-injection experiment indicate that the pore radius shows a continuum distribution from the hundred-micrometer scale to the nanometer one. The lower the permeability of reservoirs, the less proportion the micron-pore has and the more pore-space the nano-pore takes. Most throat radius is less than 1 μm, representing a nanometer-scale continuum distribution. There exists a negative correlation between the irreducible water saturation and normal permeability. The irreducible water saturation corresponding to a given permeability is not a definite value but a value range. The fitted relation shows that there is a power function relation between the normal porosity and the reserve coefficient per unit thickness. Because of the higher porosity sensibility to overburden stress and the lower gas saturation, reservoirs with lower porosity contain less natural gas resources than those with higher porosity.

Key words: tight sandstone, pore structure, nano-pore, irreducible water saturation, storage capability, natural gas resource

中图分类号:

TE112.2

王国亭, 何东博, 王少飞, 程立华. 苏里格致密砂岩气田储层岩石孔隙结构及储集性能特征[J]. 石油学报, 2013, 34(4): 660-666.

WANG Guoting, HE Dongbo, WANG Shaofei, CHENG Lihua. Characteristics of the pore structure and storage capability of Sulige tight sandstone gasfield[J]. Editorial office of ACTA PETROLEI SINICA, 2013, 34(4): 660-666.

参考文献

[1] 邹才能,陶士振,张响响,等.中国低孔渗大气区地质特征、控制因素和成藏机制[J].中国科学D辑:地球科学,2009,39(11):1607-1624.

Zou Caineng,Tao Shizhen,Zhang Xiangxiang,et al.Geologic characteristics,controlling factors and hydrocarbon accumulation mechanisms of China's Large Gas Provinces of low porosity and permeability[J].Science China in Series D:Earth Sciences,2009,52(8):1068-1090.

[2] 李建忠,郑民,张国生,等.中国常规与非常规天然气资源潜力及发展前景[J].石油学报,2012,33(S1):89-98.

Li Jianzhong,Zheng Min,Zhang Guosheng,et al.Potential and prospects of conventional and unconventional natural gas resource in China[J].Acta Petrolei Sinica,2012,33(S1):89-98.

[3] 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.

[4] 邹才能,陶士振,袁选俊,等.连续型油气藏形成条件与分布特征[J].石油学报,2009,30(3):324-331.

Zou Caineng,Tao Shizhen,Yuan Xuanjun,et al.The formation conditions and distribution characteristics of continuous petroleum accumulations[J].Acta Petrolei Sinica,2009,30(3):324-331.

[5] 贾爱林,唐俊伟,何东博,等.苏里格气田强非均质致密砂岩储层的地质建模[J].中国石油勘探,2007,12(1):12-16.

Jia Ailin,Tang Junwei,He Dongbo,et al.Geological modeling for sandstones reservoirs with low permeability and strong heterogeneity in Sulige gasfield[J].China Petroleum Exploration,2007,12(1):12-16.

[6] 何东博,贾爱林,田昌炳,等.苏里格气田储集层成岩作用及有效储集层成因[J].石油勘探与开发,2004,31(3):69-71.

He Dongbo,Jia Ailin,Tian Changbing,et al.Diagenesis and genesis of effective sandstone reservoirs in the Sulige Gas Field[J].Petroleum Exploration and Development,2004,31(3):69-71.

[7] Spencer C W.Review of characteristics of low permeability gas reservoirs in Western United States[J].AAPG Bulletin,1981,73(5):613-629.

[8] Keith W S,Robert M C,John W R.Factors controlling prolific gas production from low-permeability sandstone reservoirs:implications for resource assessment,prospect development,and risk analysis[J].AAPG Bulletin,2004,88(8):1083-1121.

[9] Stephen A H.Tight gas sands[J].Journal of Petroleum Technology,2006,58(6):88-94.

[10] Alan P B.Reservoir characteristics of low-permeability sandstones in the Rocky Mountains[J].Mountain Geologist,1997,34(1):39-51.

[11] 罗瑞兰,程林松,李熙喆,等.低渗透储层岩石覆压实验变形特征分析[J].天然气工业,2009,29(9):46-49.

Luo Ruilan,Cheng Linsong,Li Xizhe,et al.The deformation characteristics of low permeability reservoir rocks under confining pressure[J].Natural Gas Industry,2009,29(9):46-49.

[12] 胡勇.上覆压力对低渗气层物性及供气能力的影响[J].天然气勘探与开发,2011,34(2):25-27.

Hu Yong.Impact of overburden pressure on physical property of low permeability gas reservoir and gas supply capacity[J].Natural Gas Exploration and Development,2011,34(2):25-27.

[13] 邹才能,朱如凯,白斌,等.中国油气储层中纳米孔首次发现及其科学价值[J].岩石学报,2011,27(6):1857-1864.

Zou Caineng,Zhu Rukai,Bai Bin,et al.First discovery of nano-pore throat in oil and gas reservoir in China and its scientific value[J].Acta Petrologica Sinica,2011,27(6):1857-1864.

[14] Nelson P H.Por-throat sizes in sandstones,tight sandstones,and shales [J].AAPG Bulletin,2009,93(3):329-340.

[15] 王瑞飞,沈平平,宋子齐,等.特低渗透砂岩油藏储层微观孔喉特征[J].石油学报,2009,30(4):560-564.

Wang Ruifei,Shen Pingping,Song Ziqi,et al.Characteristics of micro-pore throat in ultra-low permeability sandstones reservoir[J].Acta Petrolei Sinica,2009,30(4):560-564.

[16] Jones F O,Owens W W.A laboratory study of low permeability gas sands[J].Journal of Petroleum Technology,1980, 32(9):1631-1640.

[17] 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.

Yang 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.

[18] 王为民,郭和坤,叶朝辉.利用核磁共振可动流体评价低渗透油田开发潜力[J].石油学报,2001,22(6):40-44.

Wang Weimin,Guo Hekun,Ye Chaohui.The evaluation of development potential in low permeability oilfield by the aid of NMR movable fluid detecting technology[J].Acta Petrolei Sinica,2001,22(6):40-44.

[19] 郭平,黄伟岗,姜贻伟,等.致密气藏束缚与可动水研究[J].天然气工业,2006,26(10):99-101.

Guo Ping,Huang Weigang,Jiang Yiwei,et al.Research on the irreducible and movable water of tight gas sandstone gas reservoir[J].Natural Gas Industry,2006,26(10):99-101.

[20] 唐俊伟,贾爱林,何东博,等.苏里格低渗强非均质性气田开发技术对策探讨[J].石油勘探与开发,2006,33(1):107-110.

Tang Junwei,Jia Ailin,He Dongbo,et al.Development technologies for the Sulige gas field with low permeability and strong heterogeneity[J].Petroleum Exploration and Development,2006,33(1):107-110.

苏里格致密砂岩气田储层岩石孔隙结构及储集性能特征

Characteristics of the pore structure and storage capability of Sulige tight sandstone gasfield

PDF

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

本文评价

[1]	惠沙沙, 庞雄奇, 谌卓恒, 王琛茜, 施砍园, 胡涛, 胡耀, 李敏, 梅术星, 黎茂稳. 四川盆地海相页岩孔隙类型对孔隙空间贡献定量表征[J]. 石油学报, 2024, 45(3): 531-547.
[2]	陈义林, 秦勇, 张博, 杨天宇, 刘静, 王兰花, 洪勇. 制样粒径对不同变质程度煤孔隙结构的差异化影响[J]. 石油学报, 2023, 44(8): 1313-1332.
[3]	杨雨, 谢继容, 曹正林, 文龙, 王小娟, 肖尧, 杨建, 唐青松, 唐大海, 李明秋, 关旭, 曾青高, 陈伟华, 陈康, 肖红林. 四川盆地天府气田沙溪庙组大型致密砂岩气藏形成条件及勘探开发关键技术[J]. 石油学报, 2023, 44(6): 917-932.
[4]	余浩杰, 王振嘉, 李进步, 朱亚军. 鄂尔多斯盆地长庆气区复杂致密砂岩气藏开发关键技术进展及攻关方向[J]. 石油学报, 2023, 44(4): 698-712.
[5]	丁骞, 甘利灯, 魏乐乐, 张宇生, 杨昊, 姜晓宇, 王峣钧. 双孔隙结构因子及其在储层渗透性地震预测中的应用[J]. 石油学报, 2023, 44(2): 339-347.
[6]	魏浩元, 朱宗良, 韦德强, 李昱东, 何恒, 杨银平, 李赫楠, 任雪瑶. 河西走廊及其邻区非常规油气成藏条件及勘探潜力[J]. 石油学报, 2023, 44(12): 2231-2249.
[7]	唐淑玲, 汤达祯, 杨焦生, 邓泽, 李松, 陈世达, 冯鹏, 黄晨, 李站伟. 鄂尔多斯盆地大宁—吉县区块深部煤储层孔隙结构特征及储气潜力[J]. 石油学报, 2023, 44(11): 1854-1866,1902.
[8]	方正, 蒲秀刚, 陈世悦, 鄢继华, 陈星燃, 崔绮梦. 陆相湖盆深水区页岩高频层序对储层发育的影响——以渤海湾盆地沧东凹陷孔店组二段页岩为例[J]. 石油学报, 2023, 44(10): 1663-1682.
[9]	刘致水, 王康宁, 包乾宗, 李之旭. 致密砂岩储层岩石物理横波速度预测方法 ——以鄂尔多斯盆地延长组为例[J]. 石油学报, 2022, 43(9): 1284-1294.
[10]	王清华, 张荣虎, 杨宪彰, 余朝丰, 徐振平, 周露, 王珂, 张亮. 库车坳陷东部迪北地区侏罗系阿合组致密砂岩气勘探重大突破及地质意义[J]. 石油学报, 2022, 43(8): 1049-1064.
[11]	王珂, 张荣虎, 唐永, 余朝丰, 杨钊, 唐雁刚, 周露. 库车坳陷北部构造带侏罗系阿合组构造成岩作用与储层预测[J]. 石油学报, 2022, 43(7): 925-940.
[12]	王福伟, 陈冬霞, 解广杰, 李士祥, 曾溅辉, 姚东升, 成铭. 鄂尔多斯盆地庆城地区延长组7段源-储结构控制下致密砂岩油的差异富集机制[J]. 石油学报, 2022, 43(7): 941-956,976.
[13]	金国文, 王堂宇, 刘忠华, 谢然红, 邵亮, 李博宇. 基于核磁共振测井的砂砾岩储层分类与产能预测方法[J]. 石油学报, 2022, 43(5): 648-657.
[14]	曾联波, 吕文雅, 徐翔, 田鹤, 陆诗磊, 张洺菁. 典型致密砂岩与页岩层理缝的发育特征、形成机理及油气意义[J]. 石油学报, 2022, 43(2): 180-191.
[15]	黄兴, 窦亮彬, 左雄娣, 高辉, 李天太. 致密油藏裂缝动态渗吸排驱规律[J]. 石油学报, 2021, 42(7): 924-935.