Journal of Jilin University(Earth Science Edition) ›› 2019, Vol. 49 ›› Issue (5): 1425-1430.doi: 10.13278/j.cnki.jjuese.20180204

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Experimental Study on Hydraulic Fracturing Physics Simulation, Crack Initiation and Propagation in Hot Dry Rock Geothermal Reservoir in Gonghe Basin, Qinghai

Zhou Zhou1, Jin Yan1, Zeng Yijin2, Zhang Xudong2, Zhou Jian2, Wang Wenzhi1, Meng Han1   

  1. 1. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China;
    2. Sinopec Research Institute of Petroleum Engineering, Beijing 100101, China
  • Received:2018-07-27 Published:2019-10-10
  • Supported by:
    Supported by National Key R & D Program of China (2018YFB1501802-03) and Research Foundation of China University of Petroleum (Beijing) (2462016YJRC017)

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Abstract: Hydraulic fracturing is one of the most important technical challenges in the development of hot dry rock geothermal reservoirs in Gonghe basin, Qinghai. Based on the advanced large-scale true triaxial hydraulic fracturing simulation experimental system, the authors studied the hydraulic fracture initiation and propagation in hot dry rock geothermal formations with high temperature and high pressure. The samples were from the outcrop core of Gonghe basin. According to the experimental result, the hydraulic fracture initiation and pressure could be predicted by the crack initiation model proposed in this paper. The propagation in the hot dry rock matrix has a simple extension along only with the direction of the maximum horizontal stress. The hydraulic fractures, however, are affected by natural fractures to achieve larger stimulation reservoir volume. Therefore, it is suggested that in the field, the hydraulic fracturing treatment should be in the formations rich in natural fractures so as to get a complex fracture network for geothermal energy extracting.

Key words: hot dry rock, hydraulic fracturing, initiation model, fracture propagation, Gonghe basin, reservoirs, geotherm

CLC Number: 

  • P314.9
[1] 陈勉,陈治喜,黄荣樽.大斜度井水压裂缝起裂研究[J].石油大学学报(自然科学版),1995,19(2):30-35. Chen Mian, Chen Zhixi, Huang Rongzun. Research on Hydraulic Fracture Cracking in High Angle Wells[J]. Journal of the University of Petroleum (Natural Science Edition), 1995, 19(2):30-35.
[2] Ishida T, Chen Q, Mizuta Y. Effect of Injected Water on Hydraulic Fracturing Deduced from Acoustic Emission Monitoring[J]. Pure and Applied Geophysics, 1997, 150:627-646.
[3] 金衍,陈勉.天然裂缝地层斜井水力裂缝起裂压力模型研究[J].石油学报, 2006,27(5):124-126. Jin Yan, Chen Mian. Hydraulic Fracturing Initiation Pressure Models for Directional Wells in Naturally Fractured Formation[J]. Journal of Petroleum, 2006, 27(5):124-126.
[4] Hunt S P, Morelli C P. Cooper Basin HDR Seismic Hazard Evaluation:Predictive Modelling of Local Stress Changes Due to HFR Geothermal Energy Operations in South Australia[R]. Adelaide:University of Adelaide, 2006:50.
[5] Zhou J, Chen M, Jin Y. Analysis of Fracture Propagation Behavior and Fracture Geometry Using a Tri-Axial Fracturing System in Naturally Fractured Reservoirs[J]. International Journal of Rock Mechanics Mining Science and Geomechanics, 2008, 45:1143-1152.
[6] Reinicke A, Rybacki E, Stanchits S. Hydraulic Fracturing Stimulation Techniques and Formation Damage Mechanisms-Implications from Laboratory Testing of Tight Sandstone-Proppant Systems[J]. Chemie der Erde-Geochemistry, 2010, 70(Sup. 3):107-117.
[7] 卢运虎,陈勉,金衍.各向异性地层斜井井壁稳定性研究[J]. 石油学报, 2013, 34(3):563-568. Lu Yunhu, Chen Mian, Jin Yan. Borehole Instability Mechanism of a Deviated Well in Anisotropic Formations[J]. Journal of Petroleum, 2013,34(3):563-568.
[8] Frash L P, Gutierrez M, Hampton J. True-Triaxial Apparatus for Simulation of Hydraulically Fractured Multi-Borehole Hot Dry Rock Reservoirs[J]. International Journal of Rock Mechanics & Mining Sciences, 2014, 70:496-506.
[9] 许天福,张延军,于子望. 干热岩水力压裂实验室模拟研究[J].科技导报, 2015,33(19):22-27. Xu Tianfu, Zhang Yanjun, Yu Ziwang. Laboratory Study of Hydraulic Fracturing on Hot Dry Rock[J].Technology Review, 2015, 33(19):22-27.
[10] 樊冬艳,孙海,姚军.增强型地热系统不同注采井网参数分析[J]. 吉林大学学报(地球科学版), 2019, 49(3):798-807. Fan Dongyan, Sun Hai, Yao Jun. Parametric Analysis of Different Injection and Production Well Pattern in Enhanced Geothermal System[J]. Journal of Jilin University (Earth Science Edition), 2019, 49(3):798-807.
[11] 金衍,陈勉.天然裂缝地层垂直井水力裂缝起裂压力模型研究[J].石油学报, 2005,26(7):113-114. Jin Yan, Chen Mian.Initiation Pressure Models for Hydraulic Fracturing of Vertical Wells in Naturally Fractured Formation[J]. Journal of Petroleum, 2005, 26(7):113-114.
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