低温气体辅助煤层气压裂中的冷冲击机理

张亮; 罗炯; 崔国栋; 范志坤; 任韶然; 张建光; 杨勇; 车航

doi:10.3799/dqkx.2016.055

Volume 41 Issue 4

Apr. 2016

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Article Navigation > Earth Science > 2016 > 41(4): 664-674

Zhang Liang, Luo Jiong, Cui Guodong, Fan Zhikun, Ren Shaoran, Zhang Jianguang, Yang Yong, Che Hang, 2016. Mechanisms of Cold Shock during Coalbed Fracturing Assisted with Cryogenic Gases. Earth Science, 41(4): 664-674. doi: 10.3799/dqkx.2016.055

Citation:

Zhang Liang, Luo Jiong, Cui Guodong, Fan Zhikun, Ren Shaoran, Zhang Jianguang, Yang Yong, Che Hang, 2016. Mechanisms of Cold Shock during Coalbed Fracturing Assisted with Cryogenic Gases. Earth Science, 41(4): 664-674. doi: 10.3799/dqkx.2016.055

Citation:

Zhang Liang, Luo Jiong, Cui Guodong, Fan Zhikun, Ren Shaoran, Zhang Jianguang, Yang Yong, Che Hang, 2016. Mechanisms of Cold Shock during Coalbed Fracturing Assisted with Cryogenic Gases. Earth Science, 41(4): 664-674. doi: 10.3799/dqkx.2016.055

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Mechanisms of Cold Shock during Coalbed Fracturing Assisted with Cryogenic Gases

doi: 10.3799/dqkx.2016.055

1.
School of Petroleum Engineering, China University of Petroleum, Qingdao 266580, China
2.
Huabei Oilfield, PetroChina, Renqiu 062550, China

Received Date: 2015-05-06
Publish Date: 2016-04-15

Abstract

Abstract

The common mechanisms of coalbed fracturing assisted with cryogenic gases, such as liquid nitrogen, have been relatively clear, but the impact of low-temperature characteristics of cryogenic gases on coalbed physical properties and its mechanism of improving the fracturing performance have not yet attracted wide attentions, and lack of theoretical understanding. The mechanisms of cold shock of cryogenic gases to the coal rock are summarized first. Then based on the freezing condition of formation water and the thermal properties of cryogenic gases, the cold shock performance of liquid nitrogen to the coal rock was verified by laboratory experiments, and the behavoirs of the cooled coalbed around the wellbore after liquid nitrogen injection were predicted by numerical simulation method. Then the application potential of cold shock was analyzed. The results show that injecting cryogenic gases, such as liquid nitrogen, during coalbed fracturing, can cause a cold shock to the coal rock around wellbore, which will induce the coal matrix shrinking and the formation water freezing. A large number of new microcracks will generate in the coal rock. The mechanical strength of the coal rock will decrease by 10%-30%. These phenomena are favorable for the ice temporary blocking and the improvement of coalbed fracturing. Taking the coalbed of layer 3 in the Fanzhuang block in the Qinshui basin as example, when a amount of liquid nitrogen with a volume of 30-120 m³ is injected underground, a good cooling and shock performance in the coalbed will be obtained within 3-5 m around wellbore. The porosity of the nearby coalbed will increase about 1.5 times and the permeability will increase 4 times. A stretching and squeezing damage may also occur in the coal rock around wellbore. The cold shock of cryogenic gases and its induced ice temporary blocking can be used for the improvement of hydraulic fracturing techniques in coalbed methane and shale gas wells.
- coalbed methane,
- liquid nitrogen,
- CO₂ hydrate,
- cold shock,
- microcrack,
- coal rock strength,
- coal mine

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References(46)

References

Aspen Hysys, M.B., 2006.Optimize Hydrocarbon Processes.Aspen Technology, Inc., Boston.

Bian, R.X., Deng, S.G., Fan, Y.R., et al., 1998.Relation between Acoustic Amplitude and Fracture Properties.Well Logging Technology, 22(5):327-331 (in Chinese with English abstract).

Cai, B., Wang, X., Jiang, T.X., et al., 2007.Application of Hydraulic CO₂ Fracturing Technique in Coalbed Gas Fracturing.Natural Gas Technology, 1(5):40-42(in Chinese with English abstract). http://www.sciencedirect.com/science/article/pii/S1876380414600604

Cai, C.Z., Li, G.S., Huang, Z.W., et al., 2014.Experiment Study of Rock Porous Structure Damage under Cryogenic Nitrogen Freezing.Rock and Soil Mechanics, 35(4):965-971 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-YTLX201404008.htm

Fu, X.H., Qin, Y., Wei, C.T., 2007.Coalbed Methane Geology.China University of Mining and Technology Press, Xuzhou (in Chinese).

Grundmann, S.R., Rodvelt, G.D., Dial, G.A., 1998.Cryogenic Nitrogen as a Hydraulic Fracturing Fluid in the Devonian Shale.SPE 51067, SPE Eastern Regional Meeting, Pittsburgh.doi:10.2118/51067-MS

Gupta, D.V.S., 2003.Field Application of Unconventional Foam Technology:Extension of Liquid CO₂ Technology.SPE 84119, SPE Annual Technical Conference and Exhibition, Denver.doi:10.2118/84119-MS

Huang, J.B., 2002.Manual of Industrial Gases.Chemical Industry Press, Beijing (in Chinese).

Jiao, Z.H., Ni, X.M., Jia, B., 2011.Application of Carbon Dioxide Energy Accumulation Fracturing to Coal Bed Methane Vertical Well.Coal Engineering, (2):48-50 (in Chinese with English abstract).

Kelemen, S.R., Kwiatek, L.M., 2009.Physical Properties of Selected Block Argonne Premium Bituminous Coal Related to CO₂, CH₄, and N₂ Adsorption.International Journal of Coal Geology, 77(2):2-9.doi: 10.1016/j.coal.2008.05.020

Levine, J.R., 1996.Model Study of the Influence of Matrix Shrinkage on Absolute Permeability of Coalbed Reservoirs.Geological Society Special Publication, 109(1):197-212.doi: 10.1144/GSL.SP.1996.109.01.14

Li, G., 2008.Optimized Research and Application on Liquid Nitrogen Amount and Mixing Gas Method.Journal of Mineralogy and Petrology, 28(2):118-120 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-KWYS200802022.htm

Li, T.L., Wu, X.M., Tu, H.Z., 2000.The Measurement and Analysis and Application on the Mechanical Property of Coal Seam.Geology and Prospecting, 36(2):85-88 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DZKT200002028.htm

Mack, D.J., 1991.Fracturing Process Using Carbon Dioxide and Nitrogen.US Patent 5069283.

McDaniel, B.W., Grundmann, S.R., Kendrick, W.D., et al., 1997.Field Applications of Cryogenic Nitrogen as a Hydraulic Fracturing Fluid.SPE 38623, SPE Annual Technical Conference and Exhibition, San Antoniodoi:10.2523/38623-MS

Ren, S.R., 2008.Software of SD Gas Hydrate Prediction and Analysis (SDSHY)(Dissertation).China University of Petroleum, Dongying (in Chinese).

Sun, Z.D., Jia, C.Z., Li, X.F., et al., 2011.Unconventional Oil & Gas Exploration and Development.Petroleum Industry Press, Beijing (in Chinese).

Su, X.B., Feng, Y.L., Chen, J.F., 2002.The Classification of Fractures in Coal.Coal Geology & Exploration, 30(4):21-24 (in Chinese with English abstract).

Tang, S.H., Ma, C.X., Ye, J.P., et al., 2006.A Modeling Experiment of Enhancing Coalbed Methane Recovery by Carbon Dioxide Injection.Journal of China University of Mining & Technology, 35(5):607-611, 616 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-ZGKD200605008.htm

Tudor, R., 1996.Nitrogen/Carbon Dioxide Combination Fracture Treatment.US Patent 5558160.

Wilson, D.R., 2010.Method of Stimulating a Coalbed Methane Well.US Patent 7757770.

Wilson, D.R., Siebert, R.M., Lively, P., 1995.Cryogenic Coal Bed Gas Well Stimulation Method.US Patent 5464061.

Wilson, D.R., Siebert, R.M., Lively, P., 1997.Cryogenic Well Stimulation Method.US Patent 5653287. http://www.freepatentsonline.com/5653287.html

Wyllie, M., Gregory, A., Gardner, G., 1956.Elastic Wave Velocities in Heterogeneous and Porous Media.Geophysics, 21(1):41-70.doi: 10.1190/1.1438217

Wyllie, M., Gregory, A., Gardner, G., 1958.An Experimental Investigation of Factors Affecting Elastic Wave Velocities in Porous Media.Geophysics, 23(3):459-493.doi: 10.1190/1.1438493

Xie, P., Hou, G.D., Han, J.J., 2009.Application of CO₂ Fracturing Technology in Sulige Gas Field.Block Oil & Gas Field, 16(5):104-106 (in Chinese with English abstract).

Xu, P., Yu, B.M., 2008.Developing a New Form of Permeability and Kozeny-Carman Constant for Homogeneous Porous Media by Means of Fractal Geometry.Advances in Water Resources, 31:74-81.doi: 10.1016/j.advwatres.2007.06.003

Yang, Y.J., Song, Y., Chen, S.J., et al., 2006.Experimental Study on Strength Discreteness and Triaxial Compression of Coal.Rock and Soil Mechanics, 27(10):1763-1766 (in Chinese with English abstract). http://cn.bing.com/academic/profile?id=3e75a47062ae2ef5b25a75518c2d5e8d&encoded=0&v=paper_preview&mkt=zh-cn

Zhang, J.R., 1987.Manual of Thermophysical Properties of Material Commonly Used in Engineering.New Era Publishing House, Beijing (in Chinese).

Zheng, Y.P., Ran, Z.H., Qiao, D.Y., et al., 2011.Application of Aqueous Foam Fracturing Liquid with Liquid Nitrogen Injection Technology in Su 77 Well Field.Xinjiang Oil & Gas, 7(2):59-62 (in Chinese with English abstract).

边瑞雪, 邓少贵, 范宜仁, 等, 1998.地层纵横波幅度与裂缝倾角及张开度的关系.测井技术, 22(5):327-331. http://www.cnki.com.cn/Article/CJFDTOTAL-CJJS805.005.htm

才博, 王欣, 蒋廷学, 等, 2007.液态CO₂压裂技术在煤层气压裂中的应用.天然气技术, 1(5):40-42. http://www.wenkuxiazai.com/doc/e5c8d00ac5da50e2524d7fb6.html

蔡承政, 李根生, 黄中伟, 等, 2014.液N₂冻结条件下岩石孔隙结构损伤试验研究.岩土力学, 35(4):965-971.

傅雪海, 秦勇, 韦重韬, 2007.煤层气地质学.徐州:中国矿业大学出版社.

黄建彬, 2002.工业气体手册.北京:化学工业出版社.

焦中华, 倪小明, 贾炳, 2011.CO₂增能压裂在煤层气垂直井中的应用.煤炭工程, (2):48-50. http://www.wenkuxiazai.com/doc/98692b12866fb84ae45c8d27.html

李刚, 2008.川西致密气藏压裂液N₂助排剂优化研究及应用.矿物岩石, 28(2):118-120. http://www.cnki.com.cn/Article/CJFDTotal-KWYS200802022.htm

李同林, 乌效鸣, 屠厚泽, 2000.煤岩力学性质测试分析与应用.地质与勘探, 36(2):85-88. http://www.cnki.com.cn/Article/CJFDTOTAL-DZKT200002028.htm

任韶然, 2008. SD气体水合物预测和分析软件(SDSHY)(硕士学位论文). 东营: 中国石油大学.

孙赞东, 贾承造, 李相方, 等, 2011.非常规油气勘探与开发.北京:石油工业出版社.

苏现波, 冯艳丽, 陈江峰, 2002.煤中裂隙的分类.煤田地质与勘探, 30(4):21-24. http://www.cnki.com.cn/Article/CJFDTOTAL-MDKT200204007.htm

唐书恒, 马彩霞, 叶建平, 等, 2006.注二氧化碳提高煤层甲烷采收率的实验模拟.中国矿业大学学报, 35(5):607-611, 616. http://www.cnki.com.cn/Article/CJFDTOTAL-ZGKD200605008.htm

谢平, 侯光东, 韩静静, 2009.CO₂压裂技术在苏里格气田的应用.断块油气田, 16(5):104 -106. http://www.cqvip.com/QK/90020X/200905/31902406.html

杨永杰, 宋扬, 陈绍杰, 等, 2006.煤岩强度离散性及三轴压缩试验研究.岩土力学, 27(10):1763-1766. doi: 10.3969/j.issn.1000-7598.2006.10.024

张家荣, 1987.工程常用物质的热物理性质手册.北京:新时代出版社.

郑义平, 冉照辉, 乔东宇, 等, 2011.液N₂伴注水基泡沫压裂液技术在苏77井区的应用.新疆石油天然气, 7(2):59-62. http://www.cqvip.com/QK/90803A/201102/38379476.html

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Mechanisms of Cold Shock during Coalbed Fracturing Assisted with Cryogenic Gases

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