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Ma, Geng
- Experimental Analysis of the Ratio of Similar Materials by Similarity Model Test on Raw Coal
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Authors
Affiliations
1 School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454003, CN
2 Applied Technical College, China University of Mining and Technology, Xuzhou, Jiangsu 221008, CN
3 State Key Laboratory for Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, CN
1 School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454003, CN
2 Applied Technical College, China University of Mining and Technology, Xuzhou, Jiangsu 221008, CN
3 State Key Laboratory for Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, CN
Source
Current Science, Vol 113, No 11 (2017), Pagination: 2174-2179Abstract
Similarity model test is an effective approach to study the mechanism of hydraulic fracture propagation in coalbed methane reservoirs as well as theoretical analysis and numerical simulation. The efficiency of the similarity model test result is closely related to the selection and ratio of similar materials. Similar material ratio test was conducted to simulate the mechanical parameters of raw coal using orthogonal method and an appropriate similarity model for hydraulic fracturing experiment was developed in this study. Results show that it is suitable to select cement, gypsum as binder and apply pulverized coal as aggregate through the analysis of experimental data. The mechanical parameters of similar materials, including uniaxial compressive strength, elastic modulus, Poisson ratio and firmness coefficient are tested using laboratory tests. The impact of diverse ratios of similar materials on the mechanical parameters is analysed. A proper ratio is selected to make the mechanical parameters of raw coal close to the ones of similar material, in order to meet the demand of the similarity model test based on raw coal. The results can provide theoretical basis and technical support for the selection of similar materials to carry out hydraulic fracturing experiments.Keywords
Experimental Investigation, Hydraulic Fracturing, Raw Coal, Similar Materials, Mechanical Parameters.Full Text
References
- Shikuo, C., Tianhong, Y., Ranjith, P. G. and Chenhui, W., Mechanism of the two-phase flow model for water and gas based on adsorption and desorption in fractured coal and rock. Rock Mech. Rock Eng., 2017, 50, 571–586.
- Dehghan, A. N., Goshtasbi, K., Ahangari, K., Jin, Y. and Bahmani, A., 3D numerical modeling of the propagation of hydraulic fracture at its intersection with natural (pre-existing) fracture. Rock Mech. Rock Eng., 2017, 50, 367–386.
- Tiankui, G., Zhang, S., Zhanqing, Q., Tong, Z., Yongshun, X. and Jun, G., Experimental study of hydraulic fracturing for shale by stimulated reservoir volume. Fuel, 2014, 128, 373–380.
- He, Q., Suorineni, F. T. and Oh, J., Review of hydraulic fracturing for preconditioning in cave mining. Rock Mech. Rock Eng., 2016, 49(12), 4893–4910.
- Shangyu, Y., Xingru, W., Lihong, H., Jianjun, W. and Yaorong, F., Migration of variable density proppant particles in hydraulic fracture in coal-bed methane reservoir. J. Nat. Gas Sci. Eng., 2016, 36, 662–668.
- Yiyu, L., Liang, C., Zhaolong, G., Binwei, X., Qian, L. and Jiufu, C., Analysis on the initial cracking parameters of cross-measure hydraulic fracture in underground coal mines. Energies, 2015, 8(7), 6977–6994.
- Bingxiang, H., Changyou, L., Junhui, F. and Hui, G., Hydraulic fracturing after water pressure control blasting for increased fracturing. Int. J. Rock Mech. Min. Sci., 2011, 48, 976–983.
- Wang, Y., Li, X. and Zhang, B., Analysis of fracturing network evolution behaviors in random naturally fractured rock blocks. Rock Mech. Rock Eng., 2016, 49, 4339–4347.
- Jian, Z., Mian, C., Yan, J. and Guangqing, Z., Analysis of fracture propagation behavior and fracture geometry using a tri-axial fracturing system in naturally fractured reservoirs. Int. J. Rock Mech. Min, Sci., 2008, 45, 1143–1152.
- Guo, C. H., Xu, J. C., Wei, M. Z. and Jiang, R. Z., Experimental study and numerical simulation of hydraulic fracturing tight sandstone reservoirs. Fuel, 2015, 159, 334–344.
- Estrada, J. M. and Rao, B., A review of the issues and treatment options for wastewater from shale gas extraction by hydraulic fracturing. Fuel, 2016, 182, 292–303.
- Jianpeng, Z., Weizhong, C., Jingqiang, Y., Diansen, Y. and Jianping, Y., 3-D numerical simulation of hydraulic fracturing in a CBM reservoir. J. Nat. Gas Sci. Eng., 2017, 37, 386–396.
- Kui, L., Deli, G., Yanbin, W. and Yuanchao, Y., Effect of local loads on shale gas well integrity during hydraulic fracturing process. J. Nat. Gas Sci. Eng., 2017, 37, 291–302.
- Xie, L. M., Min, K.-B. and Shen, B. T., Simulation of hydraulic fracturing and its interactions with a preexisting fracture using displacement discontinuity method. J. Nat. Gas Sci. Eng., 2016, 36, 1284–1294.
- Zhipeng, X., Zhiye, Z., Jianping, S. and Ming, L., Determination of hydraulic conductivity of fractured rock masses: a case study for a rock cavern project in Singapore. J. Rock Mech. Geotech. Eng., 2015, 7, 178–184.
- Dazhao, S., Zhentang, L., Enyuan, W., Limin, Q., Qinqing, G. and Zhaoyong, X., Evaluation of coal seam hydraulic fracturing using the direct current method. Int. J. Rock Mech. Min. Sci., 2015, 78, 230–239.
- Huiying, T., Winterfeld Philip, H., Yushu, W., Zhaoqin, H., Yuan, D., Zhengfu, P. and Juncheng, Z., Integrated simulation of multistage hydraulic fracturing in unconventional reservoirs. J. Nat. Gas Sci. Eng., 2016, 36, 875–892.
- Xiao, L., Haixiao, L. and Fan, Z., Study on ratio of similar materials based on coal mass strength. Comput. Modell. New Technol., 2014, 18(12), 336–340.
- Wenyan, Z., Mohamed, Z. and Yukio, H., Influence of aggregate materials characteristics on the drying shrinkage properties of mortar and concrete. Const. Build. Mater., 2013, 49, 500–510.
- Characteristics of Hydraulic Fracture Surface Based on 3d Scanning Technology
Abstract Views :85 |
PDF Views:0
Authors
Affiliations
1 School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454 003., CN
2 State Key Laboratory for Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400 044, CN
3 Applied Technical College, China University of Mining and Technology, Xuzhou, Jiangsu 221 008,, CN
1 School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454 003., CN
2 State Key Laboratory for Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400 044, CN
3 Applied Technical College, China University of Mining and Technology, Xuzhou, Jiangsu 221 008,, CN
Source
Journal of Mines, Metals and Fuels, Vol 66, No 4 (2018), Pagination: 227-230Abstract
The surface characteristics of fractured specimens are important in hydraulic fracturing laboratory experiments. In this paper we present a three-dimensional (3D) scanning device assembled to study these surface characteristics. Cube-shaped coal rock specimens were produced in the laboratory and subjected to triaxial loading until the specimen split in two in a hydraulic fracturing experiment. Each fractured specimen was placed on a rotating platform and scanned to produce 3D surface coordinates of the surface of the fractured coal specimen. The scanned data was processed to produce high-precision digital images of the fractured model, a surface contour map, and accurate values of the surface area and specimen volume. The images produced by processing the 3D scanner data provided detailed information on the morphology of the fractured surface and the mechanism of fracture propagation. High-precision 3D mapping of the fractured surfaces is essential for quantitative analysis of fractured specimens. The 3D scanning technology presented here is an important tool for the study of fracture characteristics in hydraulic fracturing experiments.Keywords
Surface characteristic; hydraulic fracturing; 3D scanning; 3D coordinates; surface area.
References
- Abbas, Majdi, Hassani, Ferri P. and Nasiri, Mehdi Yousef (2012): “Prediction of the height of destressed zone above the mined panel roof in longwall coal mining.” International Journal of Coal Geology, 2012, 98: 62-72. DOI: 10.1016/j.coal.2012.04.005.
- Karacan, C. O. and Okandan, E. (2000): “Fracture/cleat analysis of coals from Zonguldak Basin (northwestern Turkey) relative to the potential of coalbed methane production.” International Journal of Coal Geology, 2000, 44: 109-125. DOI: 10.1016/S0166-5162(00)00004-5.
- Jiang, Tingting, Zhang, Jianhua and Wu, Hao (2017): “Impact analysis of multiple parameters on fracture formation during volume fracturing in coalbed methane reservoirs.” Current Science, 2017, 112(2): 332-347. DOI: 10.18520/cs/v112/i02/332-347.
- Huang, Saipeng, Liu, Dameng and Yao, Yanbin, et al. (2017): “Natural fractures initiation and fracture type prediction in coal reservoir under different in-situ stresses during hydraulic fracturing.” Journal of Natural Gas Science and Engineering, 2017, 43: 69-80. DOI: 10.1016/j.jngse.2017.03.022.
- Naghi, Dehghan Ali, Kamran, Goshtasbi and Kaveh, Ahangari, et al. (2016): “Mechanism of fracture initiation and propagation using a tri-axial hydraulic fracturing test system in naturally fractured reservoirs.” EuropeanJournal of Environmental and Civil Engineering, 2016, 20(5): 560-585. DOI: 10.1080/19648189.2015.1056384.
- Li, Quangui, Lin, Baiquan, Cheng, Zhai (2014): “The effect of pulse frequency on the fracture extension during hydraulic fracturing.” Journal of Natural Gas Science and Engineering, 2014, 21: 296-303. DOI: 10.1016/j.jngse.2014.08.019.
- Jiang, Tingting, Zhang, Jianhua and Wu, Hao (2016): “Experimental and numerical study on hydraulic fracture propagation in coalbed methane reservoir.” Journal of Natural Gas Science and Engineering, 2016, 35: 455- 467. DOI: 10.1016/j.jngse.2016.08.077.
- Guo, Tiankui, Zhang, Shicheng and Qu, Zhanqing, et al. (2014): “Experimental study of hydraulic fracturing for shale by stimulated reservoir volume.” Fuel, 2014, 128: 373-380. DOI: 10.1016/j.fuel.2014.03.029.
- Zou, Yushi, Zhang, Shicheng and Zhou, Tong, et al. (2016): “Experimental investigation into hydraulic fracture network propagation in gas shales using CT scanning technology.” Rock Mechanics and Rock Engineering, 2016, 49(1): 33-45. DOI: 10.1007/s00603-015-0720-3.
- Tsuyoshi, Ishida (2001): “Acoustic emission monitoring of hydraulic fracturing in laboratory and field.” Construction and Building Materials, 2001, 15(5-6): 283-295. DOI: 10.1016/S0950-0618(00)00077-5.
- Sergey, Stanchits, Jeffrey, Burghardt and Aniket, Surdi (2015): “Hydraulic fracturing of heterogeneous rock monitored by acoustic emission.” Rock Mechanics and Rock Engineering, 2015, 48(6): 2513-2527. DOI: 10.1007/ s00603-015-0848-1.
- Chen, Youqing, Yuya, Nagaya and Tsuyoshi, Ishida (2015): “Observations of fractures induced by hydraulic fracturing in anisotropic granite.” Rock Mechanics and Rock Engineering, 2015, 48(4): 1455-1461. DOI: 10.1007/ s00603-015-0727-9.
- Kulatilake, P. H. S. W., Um, J. and Panda, B. B., et al. (1998): “Development of a new peak shear-strength criterion for anisotropic rock joints.” International Journal of Rock Mechanics and Mining Sciences, 1998, 35(4-5): 418-420. DOI: 10.1016/S0148-9062(98)00056-4.
- Andrade, P. S. and Saraiva, A. A. (2008): “Estimating the joint roughness coefficient of discontinuities found in metamorphic rocks.” Bulletin of Engineering Geology and the Environment, 2008, 67(3): 425-434. DOI: 10.1007/ s10064-008-0151-4.