Microscopic mechanism of the fracture in the rock caused by hydraulic fracturing process

Expand
  • 1.School of Earth and Space Science,Peking University,Beijing 100871,China;
    2.Oil and Gas Institute,Peking University,Beijing 100871,China

Received date: 2016-02-20

  Revised date: 2016-08-31

  Online published: 2019-09-09

Abstract

Since the microscopic mechanism of the fracture caused by hydraulic fracturing process has not been explained well,according to the linear elastic fracture theory and the gridding quantitative simulation method,through building up the simplified structure model of microscopic reservoir,simulation on microscopic laws of reservoir rocks fracture has been performed.Based on the simulation results,the micro fracture’s sequence and position have been analyzed.Two dominating modes of microscopic reservoir fracture during the hydraulic fracturing process were come up with,that is the “structure broken” which is breakthrough along the pore throats and the “body broken” which is fractured in the mineral materials.Between them the “structure broken” plays the most important role,and the "body broken" could increase the seepage channel which will play a significant role on enhancing oil recovery.

Cite this article

Du Shu-heng, Zhao Ye, Pang Shan, Shi Yong-min . Microscopic mechanism of the fracture in the rock caused by hydraulic fracturing process[J]. Natural Gas Geoscience, 2016 , 27(12) : 2237 -2245 . DOI: 10.11764/j.issn.1672-1926.2016.12.2237

References

[1]Yu Hongdan,Chen Feifei,Chen Weizhong,et al.Research on permeability of fractured rock[J].Chinese Journal of Rock Mechanics and Engineering,2012,31(supplement1):2788-2795.
[于洪丹,陈飞飞,陈卫忠,等.含裂隙岩石渗流力学特性研究[J].岩石力学与工程学报,2012,31(增刊1):2788-2795.]
[2]Biswal B,Manwart C,Hilffer R.Three-dimensional local porosity analysis of porous media[J].Physica A Statistical Mechanics & Its Applications,1998,255(3-4):221-241.
[3]Shi Xian,Chen Yuanfang,Jiang Shu,et al.Experimental study of microstructure and rock properties of shale samples[J].Chinese Journal of Rock Mechanics and Engineering,2014,32(S2):3439-3445.[时贤,程远方,蒋恕,等.页岩微观结构及岩石力学特征实验研究[J].岩石力学与工程学报,2014,32(S2):3439-3445.]
[4]Xiao Qiaolin,Tang Boming.Experimental research on mechanical properties of porous basalt[J].Science Technology and Engineering,2014,14(33):272-276.[肖巧林,唐伯明.孔隙玄武岩力学性质试验研究[J].科学技术与工程,2014,14(33):272-276.]
[5]Dong Qianqian,Ma Guowei,Xia Mingjie,et al.Crack extension process and failure behavior of marbles containing fillers[J].Journal of Beijing University of Technology,2015,41(9):1375-1382.[董茜茜,马国伟,夏明杰,等.含充填物的大理岩裂隙扩展过程及破坏特性[J].北京工业大学学报,2015,41(9):1375-1382.]
[6]Deng Jixin,Zhou Hao,Wang Huan,et al.The influence of pore structure in reservoir sandstone on dispersion properties of elastic waves[J].Chinese Journal of Geophysics,2015,58(9):3389-3400.[邓继新,周浩,王欢,等.基于储层砂岩微观孔隙结构特征的弹性波频散响应分析[J].地球物理学报,2015,58(9):3389-3400.]
[7]Tang C A,Xu T,Yang T H,et al.Numerical investigation of the mechanical behavior of rock under confining pressure and pore pressure[J].International Journal of Rock Mechanics & Mining Sciences,2004,41(41):421-422.
[8]Tang Chun’an.Effect of testing machine stiffness and frequency characteristic of recording system on measurements of complete load displacement relations for rock specimens[J].Chinese Journal of Rock Mechanics and Engineering,1987,6(3):265-276.[唐春安.试验机刚性与测量系统频率响应对测试岩石荷载_位移关系的影响[J].岩石力学与工程学报,1987,6(3):265-276.]
[9]Ren Jianxi,Ge Xiurun,Pu Yibin,et al.Primary study of real- time ct testing of unloading damage evolution law of rock[J].Chinese Journal of Rock Mechanics and Engineering,2000,19(6):697-701.[任建喜,葛修润,蒲毅彬,等.岩石卸荷损伤演化机理CT实时分析初探[J].岩石力学与工程字报,2000,19(6):697-701.]
[10]Ren Jianxi,Ge Xiurun,Pu Yibin,et al.Real-time CT test on the Meso-damage evolution of rock under uniaxial compression[J].China Civil Engineering Journal,2000,33(6):99-104.[任建喜,葛修润,蒲毅彬,等.岩石单轴细观损伤演化特性的CT实时分析[J].土木工程学报,2000,33(6):99-104.]
[11]Ren Jianxi,Yang Gengshe,Ge Xiurun,et al.Real-time CT test of meso-damage evolution law of jointed granite on unloading confining pressure[J].Journal of Chang’a n University:Natural Science Edition,2002,22(6):45-49.[任建喜,杨更社,葛修润.裂隙花岗岩卸围压作用下损伤破坏机理CT检测[J].长安大学学报:自然科学版,2002,22(6):45-49.]
[12]Ren Jianxi.Characteristics of loess slope evolution based on concept of self-organization[J].Shuili Xuebao,2002,33(1):10-14.[任建喜.单轴压缩下岩石蠕变损伤扩展细观机理CT实时试验[J].水利学报,2002,33(1):10-14.]
[13]Chen Yong.Application of acoustic emission techniques to rock mechanics research[J].Chinese Journal of Geophysics,1977,20(4):312-322.[陈颙.岩石声发射技术在岩石力学研究中的应用[J].地球物理学报,1977,20(4):312-322.]
[14]Geng Naiguang.The simulated experimental studies on cause of thermal infrared precursor of earthquakes[J].Earthquake,1998,18(1),83-88.[耿乃光.热红外震兆成因的模拟实验研究[J].地震,1998,18(1),83-88.]
[15]Wingquist C F.Elastic moduli of rock at elevated temperatures[J].BurMines,1969,7269-7291.
[16]Xiong Deguo,Zhao Zhongming,Su Chengdong,et al.Experimental study of effect of water-saturated state on mechanical properties of rock in coal measure strata[J].Chinese Journal of Rock Mechanics and Engineering,2011,30(5):98-1006.[熊德国,赵忠明,苏承东,等.饱水对煤系地层岩石力学性质影响的试验研究[J].岩石力学与工程学报,2011,30(5):98-1006.]
[17]Jiang Yongdong,Yan Zongling,Liu Yuanxue,et al.Experimental study on mechanical properties of rock under the conditions of wet and dry cycles[J].China Mining Magazine,2011,20(5):104-110.[姜永东,阎宗岭,刘元雪,等.干湿循环作用下岩石力学性质的实验研究[J].中国矿业,2011,20(5):104-110.]
[18]Xu Jiang,Li He,Xian Xuefu,et al.Experiment on development process of sandstone microscopic fracture under uniaxial stress state[J].Mechanics in Engineering,1986,8(4):16-20.[许江,李贺,鲜学福,等.对单轴应力状态下砂岩微观断裂发展全过程的实验研究[J].力学与实践,1986,8(4):16-20.]
[19]Adams M,Sines G.Crack extension from flaws in brittle material subjected to compression[J].Tectonophysics,1978,49(1-2):97-118.
[20]Brady BHGs Brown ET.Rock Mechanics[M].2nd ed.London:Chapman&Hall,1993.
[21]Okstuka K,Data H.Fracture process zone in concrete tension specimen[J].Engineering Fracture Mechanics,2000,65(65):111-131.
[22]Wawersik W R,Fairhurst C.A study of brittle rock fracture in laboratory compression experiments[J].International Journal of Rock Mechanics & Mining Science & Geomechanics Abstracts,1970,7(5):561-575.
[23]Zhu Dehan,Zhang Wei,Zhu Hejun,et al.3-D rupture dynamics of dipping faults with curvilinear-grid finite difference method[J].Acta Seismologica Sinica,2010,32(4): 401-411.
[朱德瀚,张伟,祝贺君,等.利用曲线网格有限差分方法研究三维倾斜断层的破裂动力学[J].地震学报,2010,32(4):401-411.]
[24]Blandford G E,Ingraffea A R,Liggett J A.Two-dimensional stress intensity factor computations using the boundary element method[J].International Journal for Numerical Methods in Engineering,1981,17(3):387-404.
[25]Wang Yongjia,Xing Jibo.Discrete Element Method and Lagrangian Element Method and Their Applications in Geomechanics[M].Shenyang:Northeast institute of technology press,1991.[王泳嘉,邢纪波.离散单元法及其在岩土工程中的应用[M].沈阳:东北工学院出版社,1991.]
[26]Pei Juemin.Numerical Man Ifold Method an Discontinuous Deformation Analysis[J].Chinese Journal of Rock Mechanics and Engineering,1997,16(3):279-292.[裴觉民.数值流形方法与非连续变形分析[J].岩石力学与工程学报,1997,16(3):279-292.]
[27]Jan G M.van Mier,Fracture Processes of Concrete[M].New York:CRC Press,1997.
[28]Fakhimi A,Carvalho F,Ishida T,et al.Simulation of failure around a circular opening in rock[J].International Journal of Rock Mechanics & Mining Sciences,2002,39(02):507-515.
[29]Du Shuheng,Guan Ping,Shi Yongmin,et al.New fracturing criterion on the low permeability sandstone reservoir[J/OL].Earth Science Frontiers,http://www.cnki.net/kcms/detail/11.3370.P.20160717.2036.032.html.[杜书恒,关平,师永民,等.低渗透砂岩储层可压裂性新判据[J/OL].地学前缘,http://www.cnki.net/kcms/detail/11.3370.P.20160717.2036.032.html.]
[30]Du Shuheng,Guan Ping,Xu Qi,et al.Nonlinear characterization method of fracturing stimulation scale on heterogeneous reservoir by combining logging and seismic data[J].Acta Scientiarum Naturalium Universitatis Pekinensis,2016,52(2):241-248.[杜书恒,师永民,徐启,等.井震联合非均质储层改造规模的非线性表征方法[J].北京大学学报:自然科学版,2016,52(2):241-248.]
[31]Shuheng Du,Yongmin Shi,Ping Guan,and Yuguang Zhang.New inspiration on effective development of tight reservoir in secondary exploitation by using rock mechanics method.[J].Energy Exploration & Exploitation,2016,34(1):1-16.
[32]Shuheng Du,Yongmin Shi,Xiangqian Bu,Wenqi Jin and Guoquan Mu.New expression of the changing stress field in low-permeability reservoir and its application in secondary exploitation[J].Energy Exploration & Exploitation,2015,33(4):491-514.
[33]Du Shuheng,Shi Yongmin.New Forecasting Method on ideal water flooding swept volume after hydraulic fracturing in low permeability oil & gas reservoir[J].Natural Gas Geoscience,2015,26(10):1956-1962.[杜书恒,师永民.低渗油气藏水力压裂理想水驱波及范围预测新方法[J].天然气地球科学,2015,26(10):1956-1962.]
[34]Du Shuheng,Shi Yongmin,Guan Ping,et al.Quantitative prediction of the fracture in Fuyu heterogeneous low permeability reservoir in Songliao Basin[J].Earth Science Frontiers,2017:in press.[杜书恒,师永民,关平,等.松辽盆地扶余低渗储层压裂缝定量预测[J].地学前缘,2017:待刊.]
[35]Du Shuheng,Liang Yaohuan,Shi Yongmin,et al.Changing mechanism of the Poisson’s ratio of the sand and mudstone in Qijiagulong Sag in Songliao Basin[J].Earth Science Frontiers,2017:in press.[杜书恒,梁耀欢,师永民,等.松辽盆地齐家_古龙凹陷油藏泊松比变化的岩石学机制[J].地学前缘,2017:待刊.]
[36]Jin Wenqi,Du Shuheng,Lu Xiangwei,et al.Revelation on remaining oil excavation from stress interlayer division in special low permeability reservoir:Take Yanchang Formation of Baiyushan reservoir in Ordos Basin as an example[J].Acta Scientiarum Naturalium Universitatis Pekinensis,2016,52(6):1034-1040.[靳文奇,杜书恒,路向伟等.基于应力隔夹层划分的特低渗储层剩余油挖潜——以鄂尔多斯盆地白于山地区延长组储层为例[J].北京大学学报:自然科学版,2016,52(6):1034-1040.]
[37]Bu Xiangqian,Du Shuheng,Shi Yongmin,et al.Impact on mechanical properties of rock mass with pressure field’s change in low-permeability reservoirs[J].Acta Scientiarum Naturalium Universitatis Pekinensis,2016,51(5):850-856.[卜向前,师永民,杜书恒,等.低渗透油藏压力场变化对岩体力学性质的影响[J].北京大学学报:自然科学版,2016,51(5):850-856.]
[38]Wu Wenjuan,Shi Yongmin,Wang Xiaojun et al.Theory and application of numerical simulation of asymmetric hydraulic fractures in ultra-low permeability reservoirs[J].Acta Scientiarum Naturalium Universitatis Pekinensis,2012,48(6):895-901.[吴文娟,师永民,王小军,等.超低渗油气藏非对称压裂数值模拟理论及应用[J].北京大学学报:自然科学版,2012,48(6):895-901.]
[39]Wang Youjing,Song Xinmin,Tian Changbin.Dynamic fractures are an emerging new development geological attribute in water-flooding development of ultra-low permeability reservoirs[J].Petroleum Exploration and Development,2015,42(2):222-228.[王友净,宋新民,田昌炳,等.动态裂缝是特低渗透油藏注水开发中出现的新的开发地质属性[J].石油勘探与开发,2015,42(2):222-228.]

Outlines

/