单轴压力下裂缝闭合压力及其影响因素实验研究

doi:10.13722/j.cnki.jrme.2014.1196

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摘要

针对裂缝的应力敏感性问题，制作可控裂缝参数的物理模型，基于有效压力–纵波波速响应曲线，计算裂缝的闭合压力。在此基础上，根据控制变量原理设计实验，研究裂缝初始纵横比和裂缝倾角对裂缝闭合压力的影响。实验结果表明：裂缝初始纵横比越大，裂缝闭合压力越大；当单轴压力与裂缝面不垂直时，需对单轴压力进行分解，只有当夹角达到Byerlee临界角后裂缝才会闭合，且夹角越大，闭合压力越大。

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	邱浩1
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	王子振1
	王瑞和1
	郭溢1
	李天阳1

关键词 ：岩石力学, 人造岩芯, 纵波波速, 闭合压力, 应力敏感

Abstract：

To deal with the issue of stress sensitivity of cracks，a physical model with known crack parameters has been set up and then the crack closure pressure was calculated based on the effective pressure-compressional wave velocity response curve. Following this approach，the experiments were designed using controlling variable method to study the effects of the initial crack aspect ratio and crack dip on the crack closure pressure. The experimental results indicated that the closure pressure increases as the initial crack aspect ratio increases. When the uniaxial pressure is not perpendicular to the crack surface，the uniaxial pressure should be resolved，and the crack begins to close when the angle reaches Byerlee¢s critical angle，and the closure pressure becomes higher as the angle increases.

Key words： rock mechanics synthetic core compressional wave velocity closure pressure stress sensitivity

引用本文:

邱浩1，2，王子振1，王瑞和1，郭溢1，李天阳1. 单轴压力下裂缝闭合压力及其影响因素实验研究[J]. 岩石力学与工程学报, 2015, 34(S2): 3915-3921.
QIU Hao1，2，WANG Zizhen1，WANG Ruihe1，GUO Yi1，LI Tianyang1. EXPERIMENTAL STUDY OF CLOSURE PRESSURE OF CRACKS AND ITS INFLUENCING FACTORS UNDER UNIAXIAL PRESSURE. , 2015, 34(S2): 3915-3921.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2014.1196 或 https://rockmech.whrsm.ac.cn/CN/Y2015/V34/IS2/3915

[1]	孙焕泉，王加滢. 地下构造裂缝分布规律及其预测[J]. 大庆石油学院学报，2000，24(3)：82-85.(SUN Huanquan，WANG Jiaying. Distribution law of underground structural fissures and their forecasting[J]. Journal of Daqing Petroleum Institute，2000，24(3)：82-85.(in Chinese))
[2]	崔健，张军，王延民. 储层裂缝预测方法研究[J]. 重庆科技学院学报：自然科学版，2008，10(1)：5-8.(CUI Jian，ZHANG Jun，WANG Yanmin. Study on forecast means of reservoir fractures[J].Journal ofChongqing University of Science and Technology：Natural Science，2008，10(1)：5-8.(in Chinese))
[3]	邓少贵，王晓畅，范宜仁. 裂缝性碳酸盐岩裂缝的双侧向测井响应特征及解释方法[J]. 地球科学：中国地质大学学报，2006，31(6)：846-850.(DENG Shaogui，WANG Xiaochang，FAN Yiren. Response of dual laterolog to fractures in fractured carbonate formation and its interpretation[J].Earth Science—Journal of China of Geoscience，2006，31(6)：846-850.(in Chinese))
[4]	王天娇，李强，宋晓威. 碳酸盐岩裂缝识别研究内容与方法[J]. 国外测井技术，2010，(6)：8-12.(WANG Tianjiao，LI Qiang，SONG Xiaowei.Identification of fracture contents and methods in carbonate[J].Word Well Logging Technology，2010，(6)：8-12.(in Chinese))
[5]	ALLAN J，SUN S Q. Controls on recovery factor in fractured reservoirs：lessons learned from 100 fractured fields[R]//[S.l.]：Society of Petroleum Engineers，2003.
[6]	张厚淼，孙建孟，王敏. 裂缝性储层测井评价综述[J]. 内江科技，2010，(5)：29.(ZHANG Houmiao，SUN Jianmeng，WANG Min.Well logging summary of fractured reservoirs[J].Neijiang Scienceand Technology，2010，(5)：29.(in Chinese))
[7]	景岷雪，袁小玲. 碳酸盐岩岩芯应力敏感性实验研究[J]. 天然气工业，2002，22(增)：114-117.(JING Minxue，YUAN Xiaoling. Experimental research on core stress sensitivity of carbonate rock[J]. Natural Gas Industry，2002，22(Supp.)：114-117.(in Chinese))
[8]	李宁，张清秀. 裂缝型碳酸盐岩应力敏感性评价室内实验方法研究[J]. 天然气工业，2000，20(3)：30-33.(LI Ning，ZHANG Qingxiu. A Study of laboratory methods of evaluating the stress sensitivity of fractured carbonate rocks[J].Natural Gas Industry，2000，20(3)：30-33.(in Chinese))
[9]	BRATTON T，CANH D V，VAN QUE N，et al. The nature of naturally fractured reservoirs[J]. Oilfield Review，2006，18(2)：4-23.
[10]	蒋廷学，王欣. 由瞬时停泵压力估算裂缝闭合压力的现场方法研究[J]. 大庆石油地质与开发，1999，18(3)：42-45.(JIANG Tingxue，WANG Xin. Field method research for fracture closure pressure estimation using instantaneous pump shut down pressure[J].Petroleum Geology andOilfield Development in Daqing，1999，18(3)：42-45.(in Chinese))
[11]	郭大立，吴刚，刘先灵，等. 确定裂缝参数的压力递减分析方法[J]. 天然气工业，2003，23(4)：83-85.(GUO Dali，WU Gang，LIU Xianling，et al. Analyzing method of pressure decline to identify fracture parameters[J].Natural Gas Industry，2003，23(4)：83-85.(in Chinese))
[12]	张红，甘霞，赵炜，等. 确定水力压裂裂缝闭合压力的平衡试验[J]. 国外油田工程，2004，20(10)：19-21.(ZHANG Hong，GAN Xia，ZHAO Wei，et al. Equilibrium test：determining closure pressure[J].Foreign Oil Field Engineering，2004，20(10)：19-21.(in Chinese))
[13]	RUNE M H. Petrophysics under stress[C]//Proceedings of the 6th Nordic Symposium on Petrophysics. [S.l.]：[s.n.]，2001：15-16.
[14]	FJAER E，HOLTR M. Stress and stress release effects on acoustic velocities from cores，logs and seismics[R]//[S.l.]：Society of Petrophysicists and Well-Log Analysts，1999.
[15]	丁嘉榆. 岩石中裂隙对声波传播的影响[J]. 有色金属，1982，34(2)：7-12.(DING Jiayu. Influence of crack on the wave propagation in rock[J]. Nonferrous Metal，1982，34(2)：7-12. (in Chinese))
[16]	罗津辉，蔡忠理，刘克，等. 用声波参数确定岩石加载破坏过程的不同阶段[J]. 岩土力学，1992，13(1)：51-56.(LUO Jinhui，CAI Zhongli，LIU Ke，et al. To determine the different stages in the process of rock failure load by the acoustic parameters[J]. Rock and Soil Mechanics，1992，13(1)：51-56.(in Chinese))
[17]	DUAN Y T，MENG Y F，LUO P Y.Stress sensitivity of naturally fractured-porous reservoir with dual-porosity[C]//SPE International Oil and Gas Conference and Exhibition in China. [S.l.]：Society of Petroleum Engineers，1998，295-302.
[18]	蒋海军，鄢捷年，李荣. 裂缝性储层应力敏感性实验研究[J]. 石油钻探技术，2000，28(6)：32-33.(JIANG Haijun，YAN Jienian，LI Rong. Experimental study on stress-sensitivity of fracturing formations[J]. Petroleum Drilling Techniques，2000，28(6)：32-33.(in Chinese))
[19]	罗强. 碳酸盐岩应力-应变关系与微结构分析[J]. 岩石力学与工程学报，2008，27(增1)：2656-2660.(LUO Qiang. Analysis of the relationship between stress and strain and the micro structure of carbonate rocks[J].Chinese Journal of Rock Mechanics and Engineering，2008，27(Supp.1)：2656-2660.(in Chinese))
[20]	赵明阶，吴德伦. 单轴加载条件下岩石声学参数与应力的关系研究[J]. 岩石力学与工程学报，1999，18(1)：50-54.(ZHAO Mingjie，WU Delun.Ultrasonic velocity and attenuation of rock under uniaxial loading[J].Chinese Journal of Rock Mechanics and Engineering，1999，18(1)：50-54.(in Chinese))
[21]	TILLOTSON P，SOTHCOTT J，BEST A I，etal. Experimental verification of the fracture density and shear-wave splitting relationship using synthetic silica cemented sandstones with a controlled fracture geometry[J].Geophysical Prospecting，2012，60(3)：516-525.
[22]	TILLOTSON P，CHAPMAN M，BEST AI，et al. Observations of fluid-dependent shear-wave splitting in synthetic porous rocks with aligned penny-shaped fractures[J]. Geophysical Prospecting，2011，59(1)：111-119.
[23]	BAKHORJI A M. Laboratory measurements of static and dynamic elastic properties in carbonate[Ph. D. Thesis][D]. Edmonton：University of Alberta，2010.
[24]	何健，康毅力，刘大伟，等. 孔隙型与裂缝-孔隙型碳酸盐岩储层应力敏感研究[J]. 钻采工艺，2005，28(2)：84-86.(HE Jian，KANG Yili，LIU Dawei，et al. The stress sensitivity research on porous and fractured porous carbonate reservoirs[J].Drilling andProduction Technology，2005，28(2)：84-86.(in Chinese))
[25]	MAVKO G，MUKERJI T，DVORKIN J. The rock physics handbook: Tools for seismic analysis of porous media[M]. Cambridge：Cambridge University Press，2009：1-90.