Volume 29 Issue 6
Dec.  2021
Turn off MathJax
Article Contents
Xn Tao, Zhang Zhaobin, li Shouding, et al. 2021. 31D mumerical evaluation of gas hydrate production performance of the depresurization and backillingwith in-situ supplemental heat method[J].Journal of Engineering Geology, 29(6): 1926-1941. doi: 10.13544/j.cnki.jeg.2021-0177
Citation: Xn Tao, Zhang Zhaobin, li Shouding, et al. 2021. 31D mumerical evaluation of gas hydrate production performance of the depresurization and backillingwith in-situ supplemental heat method[J].Journal of Engineering Geology, 29(6): 1926-1941. doi: 10.13544/j.cnki.jeg.2021-0177


doi: 10.13544/j.cnki.jeg.2021-0177

the Key Research Program of the Institute of Geology & Geophysics, CAS IGGCAS-201903

the Guangdong Major Project of Basic and Applied Basic Research 2020B0301030003

China Geological Survey Project DD20211350

the Second Tibetan Plateau Scientific Expedition and Research Program (STEP) 2019QZKK0904

Key Research Program of CAS ZDBS-LY-DQC003

Key Research Program of CAS ZDRW-ZS-2021-3-1

CAS Key Technology Talent Program

  • Received Date: 2021-04-01
  • Rev Recd Date: 2021-05-21
  • Available Online: 2022-01-06
  • Publish Date: 2021-12-25
  • Natural gas hydrate(NGH) is a promising clean alternative energy resource for world in future. Based on the analysis of the challenges in the commercial exploitation, the depressurization and backfilling with in-situ supplemental heat method had been proposed to enhance the gas production of methane hydrate reservoir. In this method, the calcium oxide(CaO) powder is injected into the hydrate reservoir, and the natural gas is exploited by depressurization. The water produced by the decomposition of natural gas hydrate will react with the calcium oxide powder rapidly, which would provide amounts heat for supplement thermal energy of the decomposition of natural gas hydrate. This novel method is evaluated by a numerical simulator based on the finite volume method in this work. A three-dimensional reservoir model was constructed. The simulation results indicate that comparing with the conventional horizontal well method and the horizontal well combined fracturing method, this method has a better production performance. Comparing with the horizontal well combined fracturing method, the cumulative gas production of this method is improved, but the cumulative water production has changed slightly simultaneously. Therefore, the recovery efficiency has been significantly improved. The results of the sensitivity analysis of the equivalent permeability of fractures and the mass of CaO injection show that the increasing effect of fracturing on gas production declines with the improvement of equivalent permeability of fractures. In addition, the greater the amount of injected calcium oxide, the more obvious the effect of increasing production. Increasing the amount of injected calcium oxide only increase the gas production, but not significantly increase the water production. Therefore, theoretically the larger the injection, the higher the gas production efficiency. Simultaneously, the feasibility of this method has been testified in reservoirs with different flow capacity. Herein, the improving effect on low-permeability reservoir is more obviously than other cases. Based on the above conclusions, this work quantitatively verifies the potential value of the depressurization and backfilling with in-situ supplemental heat method from the perspective of the theoretical calculation of the three-dimensional model, which looks forward to providing the reference for following work of hydrate recovery.
  • loading
  • Boswell R, Collett T S. 2011. Current perspectives on gas hydrateresources[J]. Energy & Environmental Science, 4 (4): 1206-1215.
    Chen C, Yang L, Jia R, et al. 2017. Simulation study on the effect of fracturing technology on the production efficiency of natural gashydrate[J]. Energies, 10(8): 1241. doi: 10.3390/en10081241
    Chen L, Yamada H, Kanda Y, et al. 2017. Investigation on the dissociation flow of methane hydrate cores: Numerical modeling and experimental verification[J]. Chemical Engineering Science, 163 : 31-43. doi: 10.1016/j.ces.2017.01.032
    Criado Y A, Alonso M, Abanades J C. 2014. Kinetics of the CaO/Ca(OH)2 hydration/dehydration reaction for thermochemical energy storageapplications[J]. Industrial & Engineering Chemistry Research, 53 (32): 12594-12601.
    Feng Y C, Chen L, Suzuki A, et al. 2019. Enhancement of gas production from methane hydrate reservoirs by the combination of hydraulic fracturing and depressurization method[J]. Energy Conversion and Management, 184 : 194-204. doi: 10.1016/j.enconman.2019.01.050
    Guo K, Fan S S, Wang Y H, et al. 2020. Physical and chemical characteristics analysis of hydrate samples from northern South ChinaSea[J]. Journal of Natural Gas Science and Engineering, 81: 103476. doi: 10.1016/j.jngse.2020.103476
    Huang L, Yin Z, Wan Y, et al. 2020. Evaluation and comparison of gas production potential of the typical four gas hydrate deposits in Shenhu area, South ChinaSea[J]. Energy, 204: 117955. doi: 10.1016/j.energy.2020.117955
    International Journal of Energy Research, 41 (7): 1004-1013.
    Ito T, Igarashi A, Yamamoto K. 2011. Laboratory experiments of hydraulic fracturing in unconsolidatedsands[J]. Journal of MMIJ, 127(6-7): 243-248. http://www.researchgate.net/publication/274823852_Laboratory_Experiments_of_Hydraulic_Fracturing_in_Unconsolidated_Sands
    Ju X, Liu F, Fu P, et al. 2020. Gas production from hot water circulation through hydraulic fractures in methane hydrate-bearing sediments: thc-coupled simulation of production mechanisms[J]. Energy & Fuels, 34 (4): 4448-4465. doi: 10.1021/acs.energyfuels.0c00241
    Kamath V A. 1984. Study of heat transfer characteristics during dissociation of gas hydrates in porous media[R]. PA, USA: Pittsburgh University.
    Konno Y, Jin Y, Yoneda J, et al. 2016. Hydraulic fracturing in methane-hydrate-bearingSand[J]. RSC Advances, 6 (77): 73148-73155. doi: 10.1039/C6RA15520K
    Li B, Ma X, Zhang G, et al. 2020. Enhancement of gas production from natural gas hydrate reservoir by reservoir stimulation with the stratification split grouting foam mortarmethod[J]. Journal of Natural Gas Science and Engineering, 81: 103473. doi: 10.1016/j.jngse.2020.103473
    Li S D, Li X, Wang S J, et al. 2020. A novel method for natural gas hydrate production: Depressurization and backfilling with in-situ supplementalheat[J]. Journal of Engineering Geology, 28 (2): 282-293.
    Li S D, Sun Y M, Chen W C, et al. 2019. Analyses of gas production methods and offshore production tests of natural gashydrates[J]. Journal of Engineering Geology, 27 (1): 55-68. http://en.cnki.com.cn/Article_en/CJFDTotal-GCDZ201901007.htm
    Li X D, Li G H, Wei J S, et al. 2018. Evaluating the effect of delayed gel breaking by P(Vac-AA)core-shell microsphere fracturing fluid gelbreaker[J]. Drilling Fluid & Completion Fluid, 35 (6): 122-125. http://www.researchgate.net/publication/332710392_Evaluating_the_Effect_of_Delayed_Gel_Breaking_by_PVac-AA_Core-Shell_Microsphere_Fracturing_Fluid_Gel_Breaker
    Liu X, Zhang W, Qu Z, et al. 2020. Feasibility evaluation of hydraulic fracturing in hydrate-bearing sediments based on analytic hierarchy process-entropy method(AHP-EM)[J]. Journal of Natural Gas Science and Engineering, 81: 103434. doi: 10.1016/j.jngse.2020.103434
    Long X F, Dai L, Lou B, et al. 2017. The kinetics research of thermochemical energy storage system Ca(OH)2/CaO[J]. International Journal of Energy Research, 41(7): 1004-1013. doi: 10.1002/er.3688
    Masuda Y, Fujinaga Y, Naganawa S. 1999. Modeling and experimental studies on dissociation of methane gas hydrates in Berea sandstone cores[C]//The 3rd International Conference on GasHydrates. Salt Lake City, Utah: [s. n. ].
    Moridis G J, Reagan M T, Queiruga A F, et al. 2019. Evaluation of the performance of the oceanic hydrate accumulation at site NGHP-02-09 in the Krishna-Godavari Basin during a production test and during single and multi-well productionscenarios[J]. Marine and Petroleum Geology, 108 : 660-696. doi: 10.1016/j.marpetgeo.2018.12.001
    Moridis. 2014. User's manual for the hydrate v1.5 option of TOUGH+v1.5: A code for the simulation of system behavior in hydrate-bearing geologic media[R]. Berkeley, CA(United States): Lawrence Berkeley National Lab. (LBNL).
    Reagan M, Moridis G J, Reagan M T, et al. 2008. The use of horizontal wells in gas production from hydrate accumulations[C]//6th International Conference on Gas Hydrates. United State: [s. n. ].
    Ruan X K, Li X S, Xu C G. 2020. A review of numerical research on gas production from natural gas hydrates inChina[J]. Journal of Natural Gas Science and Engineering, 85: 103713. http://www.sciencedirect.com/science/article/pii/S1875510020305679
    Schaube F, Koch L, Wrner A, et al. 2012. A thermodynamic and kinetic study of the De-and rehydration of Ca(OH)2 at high H2O partial pressures for thermo-chemical heatstorage[J]. Thermochimica Acta, 538 : 9-20. doi: 10.1016/j.tca.2012.03.003
    Shan L, Fu C, Liu Y, et al. 2020. A feasibility study of using frac-packed wells to produce natural gas from subsea gas hydrateresources[J]. Energy Science & Engineering, 8 (4): 1247-1259. doi: 10.1002/ese3.590
    Shen P F, Li G, Li X S, et al. 2021. Application of fracturing technology to increase gas production in Low-permeability hydrate reservoir: A numericalstudy[J]. Chinese Journal of Chemical Engineering, 34 : 267-277. doi: 10.1016/j.cjche.2020.07.019
    Sun J X, Ning F L, Liu T L, et al. 2019. Gas production from a silty hydrate reservoir in the South China Sea using hydraulic fracturing: A numericalsimulation[J]. Energy Science & Engineering, 7 (4): 1106-1122.
    Sun Y M, Li S D, Lu C, et al. 2021. The characteristics and its implications of hydraulic fracturing on hydrate-bearing clayey silt[J]. Journal of Natural Gas Science and Engineering, 95: 104189. doi: 10.1016/j.jngse.2021.104189
    Van Genuchten M T. 1980. A closed-form equation for predicting the hydraulic conductivity of unsaturated soils[J]. Soil Science Society of America Journal, 44 (5): 892-898. doi: 10.2136/sssaj1980.03615995004400050002x
    Wu N Y, Li Y L, Wan Y Z, et al. 2020. Prospect of marine natural gas hydrate stimulation theory and technologysystem[J]. Natural Gas Industry, 40 (8): 100-115. http://www.sciencedirect.com/science/article/pii/S2352854021000243
    Yang L, Chen C, Jia R, et al. 2018. Influence of reservoir stimulation on marine gas hydrate conversion efficiency in different accumulation conditions[J]. Energies, 11(2): 339. doi: 10.3390/en11020339
    Yang L, Shi F K, Zhang X H, et al. 2020. Experimental studies on the propagation characteristics of hydraulic fracture in clay hydratesediment[J]. Chinese Journal of Theoretical and Applied Mechanics, 52 (1): 224-234.
    Ye J L, Qin X W, Xie W W, et al. 2020. Main progress of the second gas hydrate trial production in the South ChinaSea[J]. Geology in China, 47 (3): 557-568.
    Zhao E, Hou J, Liu Y, et al. 2020. Enhanced gas production by forming artificial impermeable barriers from unconfined hydrate deposits in Shenhu area of South ChinaSea[J]. Energy, 213: 118826. doi: 10.1016/j.energy.2020.118826
    李守定, 李晓, 王思敬, 等. 2020. 天然气水合物原位补热降压充填开采方法[J]. 工程地质学报, 28 (2): 282-293. doi: 10.13544/j.cnki.jeg.2020-061
    李守定, 孙一鸣, 陈卫昌, 等. 2019. 天然气水合物开采方法及海域试采分析[J]. 工程地质学报, 27 (1): 55-68. doi: 10.13544/j.cnki.jeg.2019-065
    李晓丹, 李光辉, 未九森, 等. 2018. P(Vac-AM)核壳微球型压裂液破胶剂延迟破胶效果评价[J]. 钻井液与完井液, 35 (6): 122-125. https://www.cnki.com.cn/Article/CJFDTOTAL-ZJYW201806022.htm
    吴能友, 李彦龙, 万义钊, 等, 2020. 海域天然气水合物开采增产理论与技术体系展望[J]. 天然气工业, 40 (8): 100-115. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG202008013.htm
    杨柳, 石富坤, 张旭辉, 等. 2020. 含水合物粉质黏土压裂成缝特征实验研究[J]. 力学学报, 52 (1): 224-234. https://www.cnki.com.cn/Article/CJFDTOTAL-LXXB202001020.htm
    叶建良, 秦绪文, 谢文卫, 等. 2020. 中国南海天然气水合物第二次试采主要进展[J]. 中国地质, 47 (3): 557-568. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI202003002.htm
  • 加载中


    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Figures(25)  / Tables(6)

    Article views (163) PDF downloads(34) Cited by()
    Proportional views


    DownLoad:  Full-Size Img  PowerPoint