苏里格致密砂岩气藏单相气体渗流特征

杨朝蓬; 沙雁红; 刘尚奇; 韩彬; 杨元明; 刘剑; 梁光跃

doi:10.3981/j.issn.1000-7857.2014.h2.006

科技导报 >

2014 , Vol. 32 >Issue 28/29: 54 - 58

DOI: https://doi.org/10.3981/j.issn.1000-7857.2014.h2.006

研究论文

苏里格致密砂岩气藏单相气体渗流特征

杨朝蓬 ,
沙雁红 ,
刘尚奇 ,
韩彬 ,
杨元明 ,
刘剑 ,
梁光跃

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1. 中国石油勘探开发研究院, 北京 100083;
2. 中海油研究总院, 北京 100027;
3. 中国地质大学(北京)能源学院, 北京 100083

杨朝蓬, 工程师, 研究方向为油气渗流机制与油气藏工程, 电子信箱: yangzhaopeng@petrochina.com.cn

收稿日期: 2014-05-27

修回日期: 2014-07-04

网络出版日期: 2014-10-24

基金资助

国家科技重大专项(2011ZX05013-002)

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Flow Behavior of Single-phase Gas in Sulige Tight Sandstone Gas Reservoir

YANG Zhaopeng ,
SHA Yanhong ,
LIU Shangqi ,
HAN Bin ,
YANG Yuanming ,
LIU Jian ,
LIANG Guangyao

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1. PetroChina Research Institute of Petroleum Exploration＆Development, Beijing 100083, China;
2. CNOOC Research Institute, Beijing 100027, China;
3. School of Energy Resources, China University of Geosciences, Beijing 100083, China

Received date: 2014-05-27

Revised date: 2014-07-04

Online published: 2014-10-24

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摘要

对含有不同倾角的预制裂隙类岩石试样进行单轴静载态压缩试验,研究裂隙倾角对于试样强度、破坏模式、破坏过程及裂纹起裂和扩展规律的影响。研究发现,含有预制裂隙的类岩石试样与完整试样的应力-应变曲线相似,可分为压密段、线弹性段、裂纹稳定扩展段、应变软化段和残余强度段。含裂隙岩石的峰值抗压强度随裂隙倾角的逐渐增大呈V 字形变化,裂隙倾角45°时,岩石的峰值抗压强度最低,裂隙倾角0°和90°时,岩石的峰值抗压强度最高。裂纹的起裂角随裂隙倾角的增加而逐渐减小,裂纹的起裂速度和稳定扩展速度随裂隙倾角的增大逐渐增大。裂纹随载荷的逐渐增加,从预制裂隙尖端开始起裂,在初始加载阶段,由于岩石还具有一定的强度,裂隙扩展不明显,达到一定的载荷时,裂隙迅速而稳定扩展,直至完全破坏。

关键词： 致密砂岩; 应力敏感; 滑脱效应; 有效应力; 高速非达西流

本文引用格式

杨朝蓬 , 沙雁红 , 刘尚奇 , 韩彬 , 杨元明 , 刘剑 , 梁光跃 . 苏里格致密砂岩气藏单相气体渗流特征[J]. 科技导报, 2014 , 32(28/29) : 54 -58 . DOI: 10.3981/j.issn.1000-7857.2014.h2.006

Abstract

The gas percolation mechanism is a theoretical basis for accurately establishing the seepage model, evaluating productivity and developing gas reservoirs. The mechanisms of stress sensitivity, slippage effect, and high-speed flow in the Sulige tight gas reservoir are studied in order to confirm the flow behavior of the single-phase gas. The method of confining pressure unchanging-pore pressure changing is adopted to evaluate the stress sensitivity of the Sulige tight gas reservoir. The stress sensitivity of tight gas reservoir is proved to be strong. The effective stress coefficients of Suilge tight gas reservoir samples are obtained through Brace method. The minimum pressures in which the slippage effect will disappear are studied in the condition that the effective stresses on rock samples are constant. The minimum pressure decreases with the increase of reservoir permeability. Seven rock samples are adopted in the experiment to study the high-speed flows in tight gas reservoir and low permeability gas reservoir. In the low permeability rock samples, the gas flow exhibits the high-speed non-Darcy behavior. But due to the very low permeability, the gas flow rate is restricted in tight gas reservoirs, and the flow still belongs to Darcy-flow under a sufficiently high pressure difference. Thus, there exists no high-speed flow in the matrix of tight gas reservoirs.

Key words： tight gas reservoir; stress sensitivity; slippage effect; effective stress; high speed non-Darcy flow

参考文献

[1] 邱中建, 邓松涛. 中国非常规天然气的战略地位[J]. 天然气工业,2012, 32(1): 1-5.Qiu Zhongjian, Deng Songtao. Strategic position of unconventional naturalgas resources in China[J]. Natural Gas Industry, 2012, 32(1): 1-5.
[2] 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):179-781.Zou Caineng, Zhu Rukai, Wu Songtao, et al. Types,characteristics,genesis and prospects of conventional and unconventional hydrocarbonaccumulations:taking tight oil and tight gas in China as an instance[J].Acta Petrolei Sinica, 2012, 33(2): 174-187.
[3] 国家能源局. SY/T 6832—2011 致密砂岩气地质评价方法[S]. 北京:石油工业出版社, 2011.National Energy Board. SY/T 6832—2011 Geological evaluation methodof tightsandstone gas[S]. Beijing: Petroleum Industry Press, 2011.
[4] 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．Ran Xinquan, Li Anqi. Sulige gas field development approach[M].Beijing: Petroleum Industry Press, 2008.
[5] 高树生, 熊伟, 钟兵, 等. 川中须家河组低渗砂岩气藏渗流规律及开发机理研究[M]. 北京: 石油工业出版社, 2011．Gao Shusheng, Xiong Wei, Zhong Bing, et al. Study on percolation lawand development mechanism of xujiahe low permeability sandstone gasreservoirs in central sichuan basin[M]. Beijing: Petroleum IndustryPress, 2011.
[6] 李传亮. 低渗透储层不存在强应力敏感[J]. 石油钻采工艺, 2005, 27(4): 61-63.Li Chuanliang. Low permeability rocks are less sensitive to stress[J].Oil Drilling & Production Technology, 2005, 27(4): 61-63.
[7] 李传亮. 渗透率的应力敏感性分析方法[J]. 新疆石油地质, 2006, 27(3): 348-350.Li Chuanliang. A study on the stress sensibility of permeability ofreservoir rocks[J]. Xinjiang Petroleum Geology, 2006, 27(3): 348-350.
[8] 杨波, 黄万书, 朱洪涛, 等. 压敏效应对低渗透砂岩气藏产能的影响[J]. 天然气技术, 2009, 3(5): 18-21.Yang Bo, Huang Wanshu, Zhu Hongtao, et al. Influence of pressuresensitiveeffect on deliverability in low-permeability sandstone gasreservoir[J]. Natural Gas Technology, 2009, 3(5): 18-21.
[9] 郑维师, 刘易非, 何秋轩. 压敏效应对低渗透砂岩气藏产能的影响[J].新疆石油地质, 2006, 26(2): 191-193.Zheng Weishi, Liu Yifei, He Qiuxuan. Effect of stress sensitivity onproductivity of low-permeability sandstone gas pool[J]. XinjiangPetroleum Geology, 2006, 26(2): 191-193.
[10] 雷群, 杨正明, 刘先贵, 等. 复杂天然气藏储层特征及渗流规律[M].北京: 石油工业出版社, 2008.Lei Qun, Yang Zhengming, Liu Xiangui, et al. Reservoir characteristicsand flow law in comples gas reservoirs[M]. Beijing: Petroleum IndustryPress, 2008.
[11] 国家经济贸易委员会. SY/T 5358—2002 储层敏感性流动实验评价方法[S]. 北京: 石油工业出版社, 2002.National Economic and Trade Commission. SY/T 5358—2002 Evaluationmethod of flow sensitivity experiment in reservoirs [S]. Beijing:Petroleum Industry Press, 2002.
[12] 杨朝蓬, 高树生, 郭立辉, 等. 致密砂岩气藏应力敏感性及其对产能的影响[J]. 钻采工艺, 2013, 36(2): 58-61.Yang Zhaopeng, Gao Shusheng, Guo Lihui, et al. Effect of stresssensitivity on well productivity in tight gas reservoir[J]. Drilling &Production Technology, 2013, 36(2): 58-61.
[13] 霍凌婧, 杨正明, 张硕. 滑脱因子的经验关系式研究[J]. 武汉工业学院学报, 2009, 28(3): 36-41.Huo Lingjing, Yang Zhengming, Zhangshuo. Research on the empiricalrelation of slippage factor[J].Journal of Wuhan Polytechnic University,2009, 28(3): 36-41.
[14] 叶礼友, 高树生, 熊伟, 等. 储层压力条件下低渗砂岩气藏气体渗流特征[J]. 复杂油气藏, 2011, 4(1): 59-62.Ye Liyou, Gao Shusheng, Xiong Wei, et al. Percolation characteristicsof gas in sandstone gas reservoir with low permeability under reservoirpressure[J]. Complex Hydrocarbon Reservoirs, 2011, 4(1): 59-62.
[15] 高树生, 熊伟, 刘先贵, 等. 低渗透砂岩气藏气体渗流机理实验研究现状及新认识[J]. 天然气工业, 2010, 30(1): 52-55.Gao Shusheng, Xiong Wei, Liu Xiangui, et al. Experimental researchstatus and several novel understandings on gas percolation mechanismin low-permeability sandstone[J]. Gas Reservoirs Natural GasIndustry, 2010, 30(1): 52-55.
[16] 朱光亚, 刘先贵, 李树铁, 等. 低渗气藏气体渗流滑脱效应影响研究[J]. 天然气工业, 2007, 27(5): 44-47.Zhu Guangya, Liu Xiangui, Li Shutie, et al. A study of slippage effectof gas percolation in low permeability gas pools[J]. Natural GasIndustry, 2007, 27(5): 44-47.
[17] 闫健, 张宁生, 刘晓娟, 等. 低渗气藏中考虑滑脱效应的界限探讨[J].武汉工业学院学报, 2009, 28(3): 30-32.Yan Jian, Zhang Ningsheng, Liu Xiaojuan, et al.Research on thecritical indexs of considering gas slippage effect[J]. Journal of WuhanPolytechnic University, 2009, 28(3): 30-32.
[18] Li S L, Dong M Z, Dai L M, et al. Determination of gas permeabilityof tight reservoir cores without using Klinkenberg correlation[C]. SPEAsia Pacific Oil and Gas Conference and Exhibition held in Perth,Australia, October 18-20, 2004.
[19] Bernabe Y. The effective pressure law for permeability in chelmsfordgranite and barre granite[J]. International Journal of Rock Mechanicsand Mining Sciences, 1986, 23(3): 267-275.
[20] Bernabe Y. The effective pressure law for permeability during porepressure and confining pressure cycling of several crystalline rocks[J].Journal of Geophysical Research, 1987. 92(B1): 649-657.
[21] 李丽君, 李闽, 向祖平, 等. 低渗气藏岩石渗透率有效应力系数研究[J]. 重庆科技学院学报: 自然科学版, 2010, 12(6): 79-82.Li Lijun, Li Min, Xiang Zuping, et al. Effective-stress coefficient forrocks permeability in low-permeability gas reservoir[J]. Journal ofChongqing University of Science and Technology: Natural ScienceEdition, 2010, 12(6): 79-82.
[22] Li M, Bernabé Y, Xiao W L, et al. Effective pressure law for permeabilityof E-bei sandstones[J]. Journal of Geophysical Research -Soil Earth,2009, 114(B7). doi: 10.1029/2009JB006373.
[23] 肖文联, 李闽, 赵金洲, 等. 低渗致密砂岩渗透率应力敏感性试验研究[J]. 岩土力学, 2010, 31(3): 775-779.Xiao Wenlian, Li Min, Zhao Jinzhou, et al. Laboratory study of stresssensitivity to permeability in tight sandstone[J]. Rock and SoilMechanics, 2010, 31(3): 775-779.
[24] 汪周华, 钟兵, 伊向艺, 等. 低渗气藏考虑非线性渗流特征的稳态产能方程[J]. 天然气工业, 2008, 28(8): 81-83.Wang Zhouhua, Zhong Bing, Yi Xiangyi, et al. The steady-stateproductivity equation considering nonlinear percolation feature in lowpermeabilitygas reservoirs[J]. Natural Gas Industry, 2008, 28(8): 81-83.
[25] 何更生. 油层物理[M]. 北京: 石油工业出版社, 2007.He Gengsheng. Reservoir physics[M]. Beijing: Petroleum IndustryPress, 2007.

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