天然气水合物二次生成及渗透率变化对降压开采的影响

doi:10.7623/syxb201505011

石油学报 ›› 2015, Vol. 36 ›› Issue (5): 612-619.DOI: 10.7623/syxb201505011

天然气水合物二次生成及渗透率变化对降压开采的影响

阮徐可¹, 李小森¹, 杨明军², 于锋³

1. 中国科学院广州能源研究所天然气水合物开采及综合利用实验室中国科学院广州天然气水合物研究中心广东广州 510640;
2. 大连理工大学海洋能源利用与节能教育部重点实验室辽宁大连 116024;
3. 吉林大学汽车工程学院热能工程系吉林长春 130025

收稿日期:2014-11-05 修回日期:2015-03-16 出版日期:2015-05-25 发布日期:2015-06-10
通讯作者: 李小森,男,1967年6月生,1989年获内蒙古工业大学学士学位,2000年获清华大学博士学位,现为中国科学院广州能源研究所研究员、天然气水合物中心首席科学家,主要从事天然气水合物开采技术及综合利用、环境影响等研究工作。Email:lixs@ms.giec.ac.cn
作者简介:阮徐可,男,1983年10月生,2006年获佳木斯大学学士学位,2012年获大连理工大学博士学位,现为中国科学院广州能源研究所助理研究员,主要从事天然气水合物开采数值模拟研究。Email:ruanxk@ms.giec.ac.cn
基金资助:
国家自然科学基金项目(No.51306188,No.51309115)、国家杰出青年科学基金项目(No.51225603)、中国地质调查局国家海洋地质专项(GHZ2012006003)和中国科学院广州能源所所长创新基金项目(y307r11001)资助。

Influences of gas hydrate reformation and permeability changes on depressurization recovery

Ruan Xuke¹, Li Xiaosen¹, Yang Mingjun², Yu Feng³

1. Laboratory for Exploitation and Comprehensive Utilization of Gas Hydrates, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences; Guangzhou Center for Gas Hydrate Research, Chinese Academy of Sciences, Guangdong Guangzhou 510640;
2. Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian University of Technology, Liaoning Dalian 116024, China;
3. Department of Thermal Engineering, College of Automotive Engineering, Jilin University, Jilin Changchun 130025, China

Received:2014-11-05 Revised:2015-03-16 Online:2015-05-25 Published:2015-06-10

摘要/Abstract

摘要：

在考虑天然气水合物二次生成及渗透率变化的基础上,建立了实验室尺度下的天然气水合物降压开采数学模型。利用该数学模型,对天然气水合物降压开采过程中的水合物二次生成进行了模拟,并分析评价了水合物二次生成及渗透率变化对水合物分解产气的影响。模拟结果表明:水合物二次生成主要局限于降压产气出口附近,二次水合物现象会引起局部水合物饱和度及温度、压力等发生明显变化;同时,水合物二次生成会导致产气速率大幅降低、产气持续时间延长和系统压力急剧增加,但累积产气量不受其影响。研究发现,不同于纯降压产气过程,在水合物二次生成的情形下,产气受出口压力的影响较大,而初始温度对产气的影响较小。

关键词: 天然气水合物, 降压, 水合物二次生成, 渗透率, 数值模拟

Abstract:

In the consideration of natural gas hydrate reformation and its permeability changes, a mathematic model was built for the laboratory-scale depressurization recovery of natural gas hydrate, so as to simulate gas hydrate reformation in the depressurization recovery process of natural gas hydrate and analytically evaluate the influences of gas hydrate reformation and its permeability changes on hydrate decomposition for gas recovery. The simulation results indicate that hydrate reformation mainly occurred in the vicinity of depressurization recovery outlet, leading to significant changes in local hydrate saturation, pressure and temperature. Meanwhile, hydrate reformation will result in a great reduction of gas recovery rate, the prolongation of gas recovery duration and abrupt increase of system pressure, but the cumulative gas output will not be affected. Research results indicate that it is different from pure depressurization recovery that under the case of hydrate reformation, gas recovery rate is greatly affected by outlet pressure, while initial temperature has less impact on gas recovery.

Key words: natural gas hydrate, depressurization, hydrate reformation, permeability, numerical simulation

中图分类号:

TE311

阮徐可, 李小森, 杨明军, 于锋. 天然气水合物二次生成及渗透率变化对降压开采的影响[J]. 石油学报, 2015, 36(5): 612-619.

Ruan Xuke, Li Xiaosen, Yang Mingjun, Yu Feng. Influences of gas hydrate reformation and permeability changes on depressurization recovery[J]. Acta Petrolei Sinica, 2015, 36(5): 612-619.

参考文献

[1] Sloan Jr.E D, Koh C.Clathrate hydrates of natural gases[M].3rd ed.Boca Raton:CRC Press, 2007.
[2] 宋永臣, 阮徐可, 梁海峰, 等.天然气水合物热开采技术研究进展[J].过程工程学报, 2009, 9(5):1035-1040.
Song Yongchen, Ruan Xuke, Liang Haifeng, et al.Research advance in thermal recovery of natural gas hydrate[J].The Chinese Journal of Process Engineering, 2009, 9(5):1035-1040.
[3] 于兴河, 王建忠, 梁金强, 等.南海北部陆坡天然气水合物沉积成藏特征[J].石油学报, 2014, 35(2):253-264.
Yu Xinghe, Wang Jianzhong, Liang Jinqiang, et al.Depositional accumulation characteristics of gas hydrate in the northern continental slope of South China Sea[J].Acta Petrolei Sinica, 2014, 35(2):253-264.
[4] Ruan Xuke, Song Yongchen, Zhao Jiafei, et al.Numerical simulation of methane production from hydrates induced by different depressurizing approaches[J].Energies, 2012, 5(2):438-458.
[5] Ruan Xuke, Song Yongchen, Liang Haifeng, et al.Numerical simulation of the gas production behavior of hydrate dissociation by depressurization in hydrate-bearing porous medium[J].Energy & Fuels, 2012, 26(3):1681-1694.
[6] Wang Yi, Li Xiaosen, Li Gang, et al.Experimental investigation into methane hydrate production during three-dimensional thermal stimulation with five-spot well system[J].Applied Energy, 2013, 110:90-97.
[7] Li Gang, Li Xiaosen, Tang Liangguang, et al.Experimental investigation of production behavior of methane hydrate under ethylene glycol injection in unconsolidated sediment[J].Energy & Fuels, 2007, 21(6):3388-3393.
[8] Hyodo M, Li Yanghui, Yoneda J, et al.A comparative analysis of the mechanical behavior of carbon dioxide and methane hydrate-bearing sediments [J].American Mineralogist, 2014, 99(1):178-183.
[9] 徐纯刚, 李小森, 蔡晶, 等.二氧化碳置换法模拟开采天然气水合物的研究进展[J].化工学报, 2013, 64(7):2309-2315.
Xu Chungang, Li Xiaosen, Cai Jing, et al.Advance on simulation exploitation of natural gas hydrate by replacement with CO₂[J].CIESC Journal, 2013, 64(7):2309-2315.
[10] Li Gang, Moridis G J, Zhang Keni, et al.Evaluation of gas production potential from marine gas hydrate deposits in Shenhu area of South China Sea[J].Energy & Fuels, 2010, 24(11):6018-6033.
[11] Ahn T, Kang J M, Lee J, et al.Experimental investigation of methane hydrate reformation under dissociation process[J].International Journal of Offshore and Polar Engineering, 2010, 20(1):68-71.
[12] Seol Y, Myshakin E.Experimental and numerical observations of hydrate reformation during depressurization in a core-scale reactor[J].Energy & Fuels, 2011, 25(3):1099-1110.
[13] Ahn T, Park C, Lee J, et al.Experimental characterization of production behaviour accompanying the hydrate reformation in methane-hydrate-bearing sediments[J].Journal of Canadian Petroleum Technology, 2012, 51(1):14-19.
[14] Sakamoto Y, Komai T, Kawamura T, et al.Laboratory-scale experiment of methane hydrate dissociation by hot-water injection and numerical analysis for permeability estimation in reservoir:Part 1-Numerical study for estimation of permeability in methane hydrate reservoir[J].International Journal of Offshore and Polar Engineering, 2007, 17(1):47-56.
[15] Selim M S, Sloan E D.Hydrate dissociation in sediment[J].SPE Reservoir Engineering, 1990, 5(2):245-251.
[16] Selim M S, Sloan E D.Heat and mass transfer during the dissociation of hydrate in porous media[J].AIChE Journal, 1989, 35(6):1049-1052.
[17] Tester J W, Modell M.Thermodynamics and its applications[M].3rd ed.New Jersey:Prentice Hall, 1996.
[18] Kim H C, Bishnoi P R, Heidemann R A, et al.Kinetics of methane hydrate decomposition[J].Chemical Engineering Science, 1987, 42(7):1645-1653.
[19] Sun Xuefei, Mohanty K K.Kinetic simulation of methane hydrate formation and dissociation in porous media[J].Chemical Engineering Science, 2006, 61(11):3476-3495.
[20] Malegaonkar M B, Dholabhai P D, Bishnoi P R.Kinetics of carbon dioxide and methane hydrate formation[J].The Canadian Journal of Chemical Engineering, 1997, 75(6):1090-1099.
[21] Englezos P, Kalogerakis N, Dholabhai P D, et al.Kinetics of formation of methane and ethane gas hydrates[J].Chemical Engineering Science, 1987, 42(11):2647-2658.
[22] Masuda Y, Fujinaga Y, Naganawa S.Modeling and experimental studies on dissociation of methane gas hydrates in Berea sandstone cores[C]//Proceedings of the 3th International Conference on Gas Hydrates(ICGH 1999).Salt Lake City, USA, 1999.
[23] Corey A T.The interrelation between gas and oil relative permeabilities[J].Producers Monthly, 1954, 19(1):38-41.
[24] Konno Y, Masuda Y, Takenaka T, et al.Numerical study on permeability hysteresis during hydrate dissociation in hot water injection[C]//Proceedings of the 6th International Conference on Gas Hydrates(ICGH 2008).Vancouver, British Columbia, Canada, July 6-10, 2008.
[25] Liang Haifeng, Song Yongchen, Chen Yongjun.Numerical simulation for laboratory-scale methane hydrate dissociation by depressurization[J].Energy Conversion and Management, 2010, 51(10):1883-1890.
[26] 刘乐乐, 鲁晓兵, 张旭辉.天然气水合物分解区演化数值分析[J].石油学报, 2014, 35(5):941-951.
Liu Lele, Lu Xiaobing, Zhang Xuhui.Numerical analysis on evolution of natural gas hydrate decomposition region in hydrate-bearing sediment[J].Acta Petrolei Sinica, 2014, 35(5):941-951.
[27] Ertekin T, Abou-Kassem J H, King G R.Basic applied reservoir simulation[M].Richardson:Society of Petroleum Engineers, 2001.
[28] Song Yongchen, Liang Haifeng.2-D numerical simulation of natural gas hydrate decomposition through depressurization by fully implicit method[J]. China Ocean Engineering, 2009, 23(3):529-542.
[29] 阮徐可.多孔介质中甲烷水合物降压分解实验与数值模拟[D].大连:大连理工大学, 2012.
Ruan Xuke.Experimental and numerical study of the factors on the gas production from hydrates in porous media[D].Dalian:Dalian University of Technology, 2012.

天然气水合物二次生成及渗透率变化对降压开采的影响

Influences of gas hydrate reformation and permeability changes on depressurization recovery

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	骆汀汀, 张宸毅, 杨维好, 孙翔, 宋永臣. 含天然气水合物饱和粉质沉积物三轴剪切试验[J]. 石油学报, 2024, 45(6): 1019-1030.
[2]	李祯, 郭奇, 卜亚辉, 胡慧芳. 基于深度学习的饱和度场样本库建立及预测[J]. 石油学报, 2024, 45(4): 698-707.
[3]	刘永革, 李果, 贾伟, 白雅洁, 侯健, Clarke M A, 徐鸿志, 赵二猛, 纪云开, 陈立涛, 郭天魁, 贺甲元, 张乐. 储层改造对Ⅰ类天然气水合物藏降压开发效果的影响规律[J]. 石油学报, 2024, 45(2): 412-426,460.
[4]	魏纳, 裴俊, 蔡萌, 李海涛, 赵金洲, 张烈辉, 薛瑾. 天然气水合物自生热解堵剂热量平衡模拟计算[J]. 石油学报, 2023, 44(4): 657-671.
[5]	赵二猛, 侯健, 刘永革, 白雅洁. 海水对流增强天然气水合物藏低频电场加热效率模拟[J]. 石油学报, 2023, 44(4): 672-683.
[6]	王瀚, 苏玉亮, 王文东, 李冠群, 张琪. 基于格子Boltzmann方法的页岩纳米多孔介质流体流动模拟[J]. 石油学报, 2023, 44(3): 534-544.
[7]	刘争, 孙宝江, 王志远, 陈龙桥, 王鄂川, 陈立涛, 王金堂. 海域天然气水合物降压开采压力控制及气液流动特性[J]. 石油学报, 2022, 43(8): 1173-1184.
[8]	王强, 赵金洲, 胡永全, 赵超能, 张祯祥. 岩心尺度静态自发渗吸的数值模拟[J]. 石油学报, 2022, 43(6): 860-870.
[9]	吴林, 朱明, 冯兴强, 冀冬生, 周磊, 刘圣鑫, 张林炎, 谭元隆, 钱竹良, 杨珍. 准噶尔盆地四棵树凹陷构造应力场与构造变形解析[J]. 石油学报, 2022, 43(4): 494-506.
[10]	朱秀川, 胡钦红, 蒙冕模, 张军建, 张涛, 尹娜, 孙小惠, 晁静, 杜玉山, 刘惠民. 页岩储层渗吸过程中水的微观分布及其气测渗透率动态响应特征[J]. 石油学报, 2022, 43(4): 533-547.
[11]	张智, 赵苑瑾, 张喆, 蔡楠, 刘和兴, 马传华, 梁继文. 深水井开采制度对天然气水合物分解的影响[J]. 石油学报, 2022, 43(2): 281-292.
[12]	周世琛, 周博, 薛世峰, 公彬. 基于离散元法的天然气水合物沉积物剪切带演化机理[J]. 石油学报, 2022, 43(1): 101-111.
[13]	雷裕红, 宋颖睿, 张立宽, 苗来成, 程明, 刘乃贵. 海洋天然气水合物成藏系统研究进展及发展方向[J]. 石油学报, 2021, 42(6): 801-820.
[14]	徐立涛, 何玉林, 石万忠, 梁金强, 王任, 杜浩, 张伟, 李冠华. 琼东南盆地深水区天然气水合物成藏主控因素及模式[J]. 石油学报, 2021, 42(5): 598-610.
[15]	王千, 杨胜来, 拜杰, 赵卫, 李佳峻, 陈浩. CO₂驱油过程中孔喉结构对储层岩石物性变化的影响[J]. 石油学报, 2021, 42(5): 654-668,685.