原位开采状态下油页岩渗透特性演化规律研究

doi:10.13722/j.cnki.jrme.2020.0521

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Abstract In order to study the evolution of the permeability characteristics of oil shale under in-situ exploitation，permeability tests on the oil shale from Fushun west open pit mine were performed by high temperature triaxial permeability testing machine，and the pore microstructure of the oil shale was characterized by the mercury injection apparatus. The evolution mechanism of the permeability was discussed. The results show that the porosity and the permeability of the oil shale have a good correlation with each other. With increasing the temperature，the oil shale specimens evolve from the dense state to the porous medium，and both the porosity and the permeability increase. The pore pressure fluid has multiple physical effects on the variation of the pore structure，especially at the stage of oil and gas production due to pyrolysis of the organic matter. The pore characteristic parameters of the oil shale after high temperature permeability tests are significantly improved compared with those heated in muffle furnace. The porosities of the oil shale samples at the temperature of 300 ℃，400 ℃，500 ℃ and 600 ℃ increase by 0.6%，8.62%，1.82% and 7.83%，respectively. At 600 ℃，the macropore and mesopore volumes increase by about 1.3 and 2.4 times，respectively. Before 300 ℃，the permeability of the oil shale samples is mainly affected by the thermal stress caused by uneven thermal expansion of mineral particles and water precipitation. At 300 ℃﹣400 ℃，the complex reaction inside the oil shale occurs and many impermeable pores form，resulting in an uncoordinated change between the porosity and the permeability. 400 ℃﹣600 ℃ is the main pyrolysis stage of the oil shale. In this stage，the pyrolysis pores in the oil shale are continuously generated and connected，forming the flow channel of oil and gas products and increasing the porosity by 25.77%，and the permeability increases by about 9.06 times when the pore pressure is 1.0 MPa.

Key words： rock mechanics oil shale in-situ exploitation permeability pore structure mercury intrusion method

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	Articles by authors
	ZHAO Jing1
	2
	LIU Zengqi1
	KANG Zhiqin2
	3
	YANG Dong2
	3

Cite this article:

ZHAO Jing1,2,LIU Zengqi1, et al. Study on evolution of permeability characteristics of oil shale under in-situ exploitation[J]. , 2021, 40(5): 892-901.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2020.0521 OR https://rockmech.whrsm.ac.cn/EN/Y2021/V40/I5/892

[1]	DYNI J R. Geology and resources of some world oil-shale deposits[J]. Oil Shale，2003，20(3)：193-252.
[2]	AL-AYED O S，SULIMAN M R，RAHMAN N A. Kinetic modeling of liquid generation from oil shale in fixed bed retort[J]. Applied Energy，2010，87(7)：2 273-2 277.
[3]	TONG J H，JIANG X M，HAN X X，et al. Evaluation of the macromolecular structure of Huadian oil shale kerogen using molecular modeling[J]. Fuel，2016，181：330-339.
[4]	NIU M T，WANG S，HAN X X，et al. Yield and characteristics of shale oil from the retorting of oil shale and fine oil-shale ash mixtures[J]. Applied Energy，2013，111：234-239.
[5]	DEMIRBAS A. Conversion of oil shale to liquid hydrocarbons[J]. Energy Sources Part A-Recover Utilization and Environmental Effects，2016，38(18)：2 698-2 703.
[6]	WASHBURN K E，BIRDWELL J E，FOSTER M，et al. Detailed description of oil shale organic and mineralogical heterogeneity via fourier transform infrared microscopy[J]. Energy and Fuels，2015，29(7)：4 264-4 271.
[7]	PEI S F，WANG Y Y，ZHANG L，et al. An innovative nitrogen injection assisted in-situ conversion process for oil shale recovery：Mechanism and reservoir simulation study[J]. Journal of Petroleum Science and Engineering，2018，171：507-515.
[8]	汪友平，王益维，孟祥龙，等. 美国油页岩原位开采技术与启示[J]. 石油钻采工艺，2013，35(6)：55-59.(WANG Youping，WANG Yiwei，MENG Xianglong，et al. Enlightenment of American¢s oil shale in-situ retorting technology[J]. Oil Drilingand Production Technology，2013，35(6)：55-59.(in Chinese))
[9]	赵阳升，冯增朝，杨栋，等. 对流加热油页岩开采油气的方法：中国，200510012473[P]. 2005-04-20.(ZHAO Yangsheng，FENG Zengchao，YANG Dong，et al. Convection heating oil shale oil and gas extraction method：China，200510012473[P]. 2005-04-20.(in Chinese))
[10]	陈丽，付强，王桂英，等. 油页岩的开发与应用现状[J]. 石化技术，2018，25(1)：148.(CHEN Li，FU Qiang，WANG Guiying，et al. Development and application of oil shale[J]. Petrochemical Industry Technology，2018，25(1)：148.(in Chinese))
[11]	TIWARI P，DEO M，LIN C L，et al. Characterization of oil shale pore structure before and after pyrolysis by using X-ray micro CT[J]. Fuel，2013，107：547-554.
[12]	SAIF T，LIN Q Y，BIJELJIC B，et al. Microstructural imaging and characterization of oil shale before and after pyrolysis[J]. Fuel，2017，197：562-574.
[13]	SAIF T，LIN Q Y，GAO Y，et al. 4D in situ synchrotron X-ray tomographic microscopy and laser-based heating study of oil shale pyrolysis[J]. Applied Energy，2019，235：1 468-1 475.
[14]	赵静，冯增朝，杨栋，等. CT实验条件下油页岩内部孔裂隙分布特征[J]. 辽宁工程技术大学学报：自然科学版，2013，32(8)：1 044-1 049.(ZHAO Jing，FENG Zengchao，YANG Dong，et al. Study on distribution characteristics of pores and fissures inside oil shale under the CT experiment[J]. Journal of Liaoning Technical University：Natural Science，2013，32(8)：1 044-1 049.(in Chinese)
[15]	李广友，马中良，郑家锡，等. 油页岩不同温度原位热解物性变化核磁共振分析[J]. 石油实验地质，2016，38(3)：402-406.(LI Guangyou，MA Zhongliang，ZHENG Jiaxi，et al. NMR analysis of the physical change of oil shales during in situ pyrolysis at different temperatures[J]. Petroleum Geology and Experiment，2016，38(3)：402-406.(in Chinese))
[16]	BAI F T，SUN Y H，LIU Y M，et al. Evaluation of the porous structure of Huadian oil shale during pyrolysis using multiple approaches[J]. Fuel，2017，187：1-8.
[17]	GENG Y D，LIANG W G，LIU J，et al. Evolution of pore and fracture structure of oil shale under high temperature and high pressure[J]. Energy and Fuels，2017，31(10)：10 404-10 413.
[18]	KANG Z Q，YANG D，ZHAO Y S，et al. Thermal cracking and corresponding permeability of Fushun oil shale[J]. Oil Shale，2011，28(2)：273-283.
[19]	杨栋，薛晋霞，康志勤，等．抚顺油页岩干馏渗透实验研究[J]. 西安石油大学学报：自然科学版，2007，22(2)：23-25.(YANG Dong，XUE Jinxia，KANG Zhiqin，et al. Dry distillation and seepage experiments of Fushun oil shale[J]. Journal of Xi¢an Shiyou University：Natural Science，2007，22(2)：23-25.(in Chinese))
[20]	WANG G Y，YANG D，ZHAO Y S，et al. Experimental investigation on anisotropic permeability and its relationship with anisotropic thermal cracking of oil shale under high temperature and triaxial stress[J]. Applied Thermal Engineering，2019，146：718-725.
[21]	WASHBURN E W. The dynamics of capillary flow[J]. Physical Review，1921，17(3)：273-283.
[22]	赵阳升. 矿山岩石流体力学[M]. 北京：煤炭工业出版社，1994：55-56.(ZHAO Yangsheng. Rock fluid mechanics in mining[M]. Beijing：China Coal Industry Publishing House，1994：55-56.(in Chinese))
[23]	陈黟，吴味隆. 热工学[M]. 北京：高等教育出版社，2011：395.(CHEN Yi，WU Weilong. Thermal engineering[M]. Beijing：Higher Education Press，2011：395.(in Chinese))
[24]	HODOT B B. 煤与瓦斯突出[M]. 宋士钊，王佑安译. 北京：中国工业出版社，1966：27-33.(HODOT B B. Outburst of coal and coalbed gas[M]. Translated by SONG Shizhao，WANG Youan. Beijing：China Industry Press，1966：27-33.(in Chinese))
[25]	康志勤，李翔，杨涛，等. 基于传导、对流不同加热模式的油页岩孔隙结构变化的对比研究[J]. 岩石力学与工程学报，2018，37(11)：2 565-2 575.(KANG Zhiqin，LI Yang，YANG Tao，et al. Comparisons of pore structures of oil shale upon conduction and convection heating[J].Chinese Journal of Rock Mechanics and Engineering，2018，37(11)：2 565-2 575.(in Chinese))
[26]	王擎，闫宇赫，贾春霞，等. 甘肃油页岩红外光谱分析及热解特性[J]. 化工进展，2014，33(7)：1 730-1 734.(WANG Qing，YAN Yuhe，JIA Chunxia，et al.FTIR analysis and pyrolysis characteristics of oil shale from Gansu province[J]. Chemical Industry and Engineering Progress，2014，33(7)：1 730-1 734.(in Chinese))
[27]	SHI J，MA Y，LI S Y，et al. Characteristics of estonian oil shale kerogen and its pyrolysates with thermal bitumen as a pyrolytic intermediate[J]. Energy and Fuels，2017，31(5)：4 808-4 816.
[28]	杨瑞. 抚顺油页岩热解及其产物特性研究[硕士学位论文][D]. 西安：西北大学，2016.(YANG Rui. The study of the FS oil shale pyrolysis and its products characteristics[M. S. Thesis][D]. Xi¢an：Northwest University，2016.(in Chinese))
[29]	王擎，孙斌，刘洪鹏，等. 油页岩热解过程矿物质行为分析[J]. 燃料化学学报，2013，41(2)：163-168.(WANG Qing，SUN Bin，LIU Hongpeng，et al. Analysis of mineral behavior during pyrolysis of oil shale[J]. Journal of Fuel Chemistry and Technology，2013，41(2)：163-168.(in Chinese))
[30]	康志勤，赵阳升，杨栋. 油页岩热破裂规律分形理论研究[J]. 岩石力学与工程学报，2010，29(1)：90-96.(KANG Zhiqin，ZHAO Yangsheng，YANG Dong.Theoretical research on thermal cracking fractals laws of oil shale[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(1)：90-96. (in Chinese))
[31]	KANG Z Q，ZHAO J，YANG D，et al. Study of the evolution of micron-scale pore structure in oil shale at different temperatures[J]. Oil Shale，2017，34(1)：42-54.