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

Previous Articles     Next Articles

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)

PDF (PC)

333

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.
[1] Luo Teng, Feng Xuan, Guo Zhiqi, Liu Cai, Liu Xiwu. Seismic Inversion of Anisotropy Parameters of Fractured Reservoirs by Simulated Annealing and Particle Swarm Optimization [J]. Journal of Jilin University(Earth Science Edition), 2019, 49(5): 1466-1476.
[2] Wang Lu, Yang Shenglai, Peng Xian, Liu Yicheng, Xu Wei, Deng Hui. Pore Structure Characteristics and Storage-Seepage Capability of Multi-Type Reservoirs in Fracture-Cavity Carbonate Gas Reservoirs: A Case Study of Deng-4 Member in Gaoshiti-Moxi Area, Sichuan Basin [J]. Journal of Jilin University(Earth Science Edition), 2019, 49(4): 947-958.
[3] Shan Xuanlong, Cai Zhuang, Hao Guoli, Zou Xintong, Zhao Rongsheng. Estimation of Thermal Storage Temperature of Geothermal System in Changbai Mountain by Geothermometers [J]. Journal of Jilin University(Earth Science Edition), 2019, 49(3): 662-672.
[4] Fan Dongyan, Sun Hai, Yao Jun, Li Huafeng, Yan Xia, Zhang Kai, Zhang Lin. Parametric Analysis of Different Injection and Production Well Pattern in Enhanced Geothermal System [J]. Journal of Jilin University(Earth Science Edition), 2019, 49(3): 797-806.
[5] Wu Yunxia, Lü Fengjun, Xing Lixin, Liu Xinxing. Prediction Model of Multiple Information Dry-Hot Rock in Dushancheng Area [J]. Journal of Jilin University(Earth Science Edition), 2019, 49(3): 880-892.
[6] Zhang Bin, Gu Guozhong, Shan Junfeng, Wang Pujun, Guo Qiang, Xu Chenchen, Yang Fan, Chen Xingzhou. Lithology,Lithofacies Chracteristics and Reservoir Control Factors of Cenozoic Igneous Rocks in Eastern Sag of Liaohe Depression [J]. Journal of Jilin University(Earth Science Edition), 2019, 49(2): 279-293.
[7] Yan Ketao, Guo Qinghai, Liu Mingliang. Geochemical Anomalies of Arsenic and Its Speciation in Daggyai Geothermal Springs, Tibet [J]. Journal of Jilin University(Earth Science Edition), 2019, 49(2): 548-558.
[8] Gao Ke, Gao Hongtong, Tan Xianfeng, Zhao Changliang, Li Meng. Application of Bionic Abnormal Shape Bit in Dry Rock Drilling [J]. Journal of Jilin University(Earth Science Edition), 2018, 48(6): 1804-1809.
[9] Li Wenqiang, Guo Wei, Sun Shouliang, Yang Xuhai, Liu Shuai, Hou Xiaoyu. Research on Hydrocarbon Accumulation Periods of Palaeozoic Reservoirs in Bachu-Maigaiti Area of Tarim Basin [J]. Journal of Jilin University(Earth Science Edition), 2018, 48(3): 640-651.
[10] Feng Xiaolong, Ao Weihua, Tang Xuan. Characteristics of Pore Development and Its Main Controlling Factors of Continental Shale Gas Reservoirs: A Case Study of Chang 7 Member in Ordos Basin [J]. Journal of Jilin University(Earth Science Edition), 2018, 48(3): 678-692.
[11] Cai Laixing, Lu Shuangfang, Xiao Guolin, Wang Jiao, Wu Zhiqiang, Guo Xingwei, Hou Fanghui. Controlling Action of Space-Time Coupling Relationship Between High-Quality Source Rocks and High-Quality Reservoirs: Contrasting Accumulation Conditions of Tight Oil in the Southern Songliao Basin with Tight Gas in the Northern Songliao Basin [J]. Journal of Jilin University(Earth Science Edition), 2018, 48(1): 15-28.
[12] Cai Laixing, Lu Shuangfang, Zhang Xunhua, Xiao Guolin, Wu Zhiqiang, Huang Wenbiao. Establishment of Evaluation Scheme of Tight Sandstone Reservoirs Based on Pore Throat:A Case Study on the 4th Member of Quantou Formation at Central Depression of Southern Songliao Basin [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(6): 1654-1667.
[13] Zhang Bing, Yang Kai, Jia Xueli, Zheng Rongcai, Guo Qiang, Wen Huaguo. Sedimentary-Diagenetic Systems of Dolomite Reservoir in Changxing Formation in the Eastern Kaijiang-Liangping Intraplatform Trough [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(6): 1631-1641.
[14] Yan Baizhong, Qiu Shuwei, Xiao Changlai, Liang Xiujuan. Potential Geothermal Fields Remote Sensing Identification in Changbai Mountain Basalt Area [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(6): 1819-1828.
[15] Gao Chonglong, Ji Youliang, Jin Jun, Wang Jian, Ren Ying, Che Shiqi, Wang Ru, Huan Zhijun. Characteristics and Controlling Factors on Physical Properties of Deep Buried Favorable Reservoirs of the Qingshuihe Formation in Muosuowan Area, Junggar Basin [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(4): 990-1006.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Journal of Jilin University(Earth Science Edition), All Rights Reserved.
Tel: +86-431-88502374；13756165364　E-mail: xuebao1956@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd