砂砾岩储层水力裂缝扩展规律试验研究

doi:10.13722/j.cnki.jrme.2017.0159

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Abstract Due to the existence of gravels in a glutenite formation，the geometry of hydraulic fracture becomes more complex，which makes the stimulation treatment difficult. In order to investigate the propagation mechanism of hydraulic fracture，laboratory experiments were performed on six natural glutenite samples，using a large scale tri-axial fracturing simulation system. The influences of the horizontal stress difference，gravel size and distribution，fracturing fluid viscosity and pumping rate on the fracture propagation were analyzed. The experimental results show that a single planar hydraulic fracture was created when the small gravels dominated in the glutenite sample. This indicates that small gravels have no obvious influence on the fracture propagation. By contrast，the hydraulic fracture was deflected along the interface of gravels and resulted in a complex fracture geometry with multiple tortuous branches in samples with large gravels. This phenomena is more distinctive when a sample with randomly distributed large gravels was hydraulically fractured under a lower horizontal stress difference. Additionally，a higher breakdown pressure was observed in the injection pressure curve when the hydraulic fracture initiated within a high-strength gravel. The fracture branching or deflecting is likely to reduce the fracture width. The fracture width was effectively increased when the high-viscosity fracturing fluid such as guar gel was used which is helpful for preventing sand plug.

Key words： rock mechanics glutenite deflection fracture branches fracture width

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	Articles by authors
	LI Ning
	ZHANG Shicheng
	MA Xinfang
	ZOU Yushi
	CHEN Ming
	LI Sihai
	ZHANG Yinuo

Cite this article:

LI Ning,ZHANG Shicheng,MA Xinfang, et al. Experimental study on the propagation mechanism of hydraulic fracture in glutenite formations[J]. , 2017, 36(10): 2383-2392.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2017.0159 OR https://rockmech.whrsm.ac.cn/EN/Y2017/V36/I10/2383

[1]	昝灵，王顺华，张枝焕，等. 砂砾岩储层研究现状[J]. 长江大学学报：自然科学版，2011，8(3)：63-66.(ZAN Ling，WANG Shunhua，ZHANG Zhihuan，et al. Research status of sandy conglomerates reservoir[J]．Journal of Yangtze University：Natural Science，2011，8(3)：63-66.(in Chinese))
[2]	李升芳，李太伟，王进涛，等. 砂砾岩储层裂缝摩阻测试及应用[J]. 科学技术与工程，2015，15(19)：127-130.(LI Shengfang，LI Taiwei，WANG Jintao，et al. The performance test and application of the fracture fiction in glutenite reservoir[J]. Science Technology and Engineering，2015，15(19)：127-130.(in Chinese))
[3]	付育武，马飞，杨逸，等. 致密砂砾岩气藏改造关键技术研究[J]. 石油地质与工程，2011，25(1)：134-136.(FU Yuwu，MA Fei，YANG Yi，et al. Key technology study on tight sand -conglomerate reservoir reconstruction of gas reservoirs[J]. Petroleum Geology and Engineering，2011，25(1)：134-136.(in Chinese))
[4]	KESHAVARZI R，MOHAMMADI S，BAYESTEH H. Hydraulic fracture propagation in unconventional reservoirs：the role of natural fractures[C]// The 46th U.S. Rock Mechanics/Geomechanics Symposium. Chicago：American Rock Mechanics Association，2012. " target="_blank">
[5]	OLSON J E，WU K. Sequential versus simultaneous multi-zone fracturing in horizontal wells：insights from a non-planar，multi-frac numerical model[R]. 2012，SPE 152602． " target="_blank">
[6]	ZOU Y S，MA X F，ZHANG S C，et al. Numerical investigation into the influence of bedding plane on hydraulic fracture network propagation in shale formations[J]. Rock Mechanics and Rock Engineering，2016，49(9)：3 597-3 614. " target="_blank">
[7]	GUO T K，ZHANG S C，QU Z Q，et al．Experimental study of hydraulic fracturing for shale by stimulated reservoir volume[J]. Fuel，2014，128(14)：373-380. " target="_blank">
[8]	ZOU Y S，ZHANG S C，MA X F，et al. Numerical investigation of hydraulic fracture network propagation in naturally fractured shale formations[J]. Journal of Structural Geology，2016，84(1)：1-13. " target="_blank">
[9]	侯冰，陈勉，李志猛，等. 页岩储集层水力裂缝网络扩展规模评价方法[J]. 石油勘探与开发，2014，41(6)：763-768.(HOU Bing，CHEN Mian，LI Zhimeng，et al. Propagation area evaluation of hydraulic fracture networks in shale gas reservoirs[J]. Petroleum Exploration and Development，2014，41(6)：763-768.(in Chinese))
[10]	侯冰，陈勉，程万，等. 页岩气储层变排量压裂的造缝机制[J]. 岩土工程学报，2014，36(11)：2 149-2 152.(HOU Bing，CHEN Mian，CHENG Wan，et al. Fracture mechanism on shale gas reservoir fracturing with variable pump rate[J]. Chinese Journal of Geotechnical Engineering，2014，36(11)：2 149-2 152.(in Chinese))
[11]	STANCHITS S，BURGHARDT J，SURDI A. Hydraulic fracturing of heterogeneous rock monitored by acoustic emission[J]. Rock Mechanics and Rock Engineering，2015，48(12)：2 513-2 527. " target="_blank">
[12]	侯振坤，杨春和，王磊，等. 大尺寸真三轴页岩水平井水力压裂物理模拟试验与裂缝延伸规律分析[J]. 岩土力学，2016，37(2)： 407-414.(HOU Zhenkun，YANG Chunhe，WANG Lei，et al. Hydraulic fracture propagation of shale horizontal well by large-scale true triaxial physical simulation test[J]. Rock and Soil Mechanics，2016，37(2)：407-414.(in Chinese))
[13]	赵益忠，曲连忠，王幸尊，等. 不同岩性地层水力压裂裂缝扩展规律的模拟试验[J]. 中国石油大学学报：自然科学版，2007，31(3)：63-66.(ZHAO Yizhong，QU Lianzhong，WANG Xingzun，et al. Simulation experiment on propagation law of hydraulic fracture for different lithologic formations[J]. Journal of China University of Petroleum：Natural Science，2007，31(3)：63-66.(in Chinese))
[14]	孟庆民，张士诚，郭先敏，等. 砂砾岩水力裂缝扩展规律初探[J]. 石油天然气学报，2010，32(4)：119-123.(MENG Qingmin，ZHANG Shicheng，GUO Xianmin，et al. A primary investigation on propagation mechanism for hydraulic fracture in glutenite formation[J]. Journal of Oil and Gas Technology，2010，32(4)：119-123.(in Chinese))
[15]	罗攀，李勇明，江有适，等. 砂砾岩水力裂缝延伸路径模拟研究[J]. 油气地质与采收率，2013，20(5)：103-106.(LUO Pan，LI Yongming，JIANG Youshi，et al. Research on micro-morphology characteristics of hydraulic fractures for conglomerate reservoir[J]. Petroleum Geology and Recovery Efficiency，2013，20(5)：103-106.(in Chinese))
[16]	李连崇，李根，孟庆民，等. 砂砾岩水力压裂裂缝扩展规律的数值模拟分析[J]. 岩土力学，2013，34(5)：1 501-1 507.(LI Lianchong，LI Gen，MENG Qingmin，et al. Numerical simulation of propagation of hydraulic fractures in glutenite formation[J]. Rock and Soil Mechanics，2013，34(5)：1 501-1 507.(in Chinese))
[17]	鞠杨，杨永明，陈佳亮，等. 低渗透非均质砂砾岩的三维重构与水压致裂模拟[J]. 科学通报，2016，61(1)：82-93.(JU Yang，YANG Yongming，CHEN Jianliang，et al. 3D reconstruction of low- permeability heterogeneous glutenites and numerical simulation of hydraulic fracturing behavior[J]. Chinese Science Bulletin，2016，61(1)：82-93.(in Chinese))
[18]	姜在兴．沉积学[M]. 北京：石油工业出版社，2010：79-80.(JIANG Zaixing．Sedimentology[M]. Beijing：Petroleum Industry Press，2010：79-80.(in Chinese)) " target="_blank">
[19]	ZOU Y S，ZHANG S C，ZHOU T，et al. Experimental investigation into hydraulic fracture network propagation in gas shales using CT scanning technology[J]. Rock Mechanics and Rock Engineering，2016，49(1)：33-45. " target="_blank">
[20]	张士诚，郭天魁，周彤，等. 天然页岩压裂裂缝扩展机理试验[J]. 石油学报，2014，35(3)：496-503.(ZHANG Shicheng，GUO Tiankui，ZHOU Tong，et al. Fracture propagation mechanism experiment of hydraulic fracturing in natural shale[J]. ACTA Petrolei Sinica，2014，35(3)：496-503.(in Chinese))