铀矿储层改造裂隙网络渗流模型参数优化研究

doi:10.13722/j.cnki.jrme.2024.0015

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (6551 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要铀矿储层改造过程中，爆破是提高低渗透铀矿储层渗透率的有效手段之一，爆破参数设计优化是影响爆破效果的关键因素。因此，首先设计三因素五水平的正交数值试验，基于模拟结果确定储层改造中与岩层参数相适应的微差爆破参数，研究不同爆破方式对储层改造裂隙网络生成效果的影响规律，综合多角度评判储层改造裂隙网络的优劣。并进行不同注液压力模拟试验，量化储层中溶浸液流量随时间的变化规律。结果表明，在微差时间为5 ms、爆破荷载峰值压力为5 GPa、压力上升时间为150 μs的爆破参数组合下，储层渗透流量改造效果最优。该研究拓展了对铀矿储层改造的认识，为未来相关研究提供了重要参考。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	王奇智1
	2
	3
	王嘉纬1
	2
	王伟3
	4
	袁维3
	4
	牛庆合3
	4
	王文3
	4
	张春会1
	2

关键词 ：采矿工程, 储层改造, 微差爆破, 裂隙网络渗流, 数值模拟

Abstract：In the process of uranium reservoir reconstruction，blasting is one of the effective means to improve the permeability of low permeability uranium reservoir，and the design optimization of blasting parameters is the key factor affecting the blasting effect. Therefore，a three-factor and five-level orthogonal numerical test is designed firstly. Based on the simulation results，the millisecond blasting parameters suitable for rock parameters in reservoir reconstruction are determined. The influence of different blasting methods on the formation effect of fracture network in reservoir reconstruction is studied，and the advantages and disadvantages of fracture network in reservoir reconstruction are comprehensively evaluated from multiple angles. Subsequently，different injection pressure simulation tests are carried out to quantify the variation of the flow rate of the solution in the reservoir with time. The results show that under the combination of blasting parameters with a millisecond time of 5 ms，a peak pressure of blasting load of 5 GPa，and a pressure rise time of 150 μs，the effect of reservoir seepage flow transformation is the best. This paper expands the understanding of uranium reservoir reconstruction and provides an important reference for future research.

Key words： mining engineering reservoir reconstruction millisecond blasting fracture network seepage numerical simulation

引用本文:

王奇智1，2，3，王嘉纬1，2，王伟3，4，袁维3，4，牛庆合3，4，王文3，4，张春会1，2. 铀矿储层改造裂隙网络渗流模型参数优化研究[J]. 岩石力学与工程学报, 2024, 43(9): 2152-2164.
WANG Qizhi1，2，3，WANG Jiawei1，2，WANG Wei3，4，YUAN Wei3，4，NIU Qinghe3，4，WANG Wen3，4，ZHANG Chunhui1，2. Study on parameter optimization of fracture network seepage model for uranium reservoir reconstruction. , 2024, 43(9): 2152-2164.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2024.0015 或 https://rockmech.whrsm.ac.cn/CN/Y2024/V43/I9/2152

[1]	ZENG S，SHEN Y，SUN B，et al. Fractal kinetic characteristics of uranium leaching from low permeability uranium-bearing sandstone[J]. Nuclear Engineering and Technology，2022，54(4)：1 175-1 184.
[2]	阙为民，王海峰，牛玉清，等. 中国铀矿采冶技术发展与展望[J]. 中国工程科学，2008，(3)：44-53.(QUE Weimin，WANG Haifeng，NIU Yuqing，et al. Development and prospect of uranium mining and metallurgy technology in china[J]. China Engineering Science，2008，(3)：44-53.(in Chinese))
[3]	王伟，王奇智，石露，等. 爆炸荷载下岩石I型微裂纹动态扩展研究[J]. 岩石力学与工程学报，2014，33(6)：1 194-1 202.(WANG Wei，WANG Qizhi，SHI Lu，et al. Dynamic propagation of mode I microcracks in rock under blast loading[J]. Journal of Rock Mechanics and Engineering，2014，33(6)：1 194-1 202.(in Chinese))
[4]	王伟，李小春，袁维，等. 低渗透砂岩型铀矿床爆破增渗模型试验及增渗机制研究[J]. 岩石力学与工程学报，2016，35(8)：1 609- 1 617.(WANG Wei，LI Xiaochun，YUAN Wei，et al. Study on the model test and mechanism of blasting permeability enhancement in low permeability sandstone-type uranium deposits[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(8)：1 609-1 617.(in Chinese))
[5]	YUAN W，SU X B，WANG W，et al. Numerical study of the contributions of shock wave and detonation gas to crack generation in deep rock without free surfaces[J]. Journal of Petroleum Science and Engineering，2019，177： 699-710.
[6]	WANG Q Z，SU X B，WU B B，et al. A coupled damage-permeability constitutive model for brittle rocks subjected to explosive loading[J]. Advances in Civil Engineering，2018，(PT.5)：6816974.1-6816974.9.
[7]	SHI X Z，CHEN S R. Delay time optimization in blasting operations for mitigating the vibration-effects on final pit walls' stability[J]. Soil Dynamics and Earthquake Engineering，2011，31(8)：1 154-1 158.
[8]	GOU Y G，SHI X Z，QIU X Y，et al. Assessment of induced vibrations derived from the wave superposition in time-delay blasts[J]. International Journal of Rock Mechanics and Mining Sciences，2021，144(2)：104814.
[9]	CHANDRAKAR S，PAUL P S，SAWMLIANA C. Long-hole raise blasting in a single shot：Assessment of void ratio and delay time based on experimental tests[J]. Engineering Structures，2023，275(A)：115272.
[10]	YANG J H，LU W B，JIANG Q H，et al. Frequency comparison of blast-induced vibration per delay for the full-face millisecond delay blasting in underground opening excavation[J]. Tunnelling and Underground Space Technology，2016，51(1)：189-201.
[11]	YI C P，SJÖBERG J，JOHANSSON D，et al. A numerical study of the impact of short delays on rock fragmentation[J]. International Journal of Rock Mechanics and Mining Sciences，2017，100：250-254.
[12]	CHEN Y M，LI C C，WANG W G，et al. Study on the liquefaction characteristics of saturated sands by millisecond delay blasting[J]. Soil Dynamics and Earthquake Engineering，2023，164：107584.
[13]	LIU K W，ZHAO X R，LI X D，et al. Effects of delay time on crack coalescence between two boreholes[J]. Theoretical and Applied Fracture Mechanics，2024，129：104210.
[14]	汪旭光. 爆破手册[M]. 北京：冶金工业出版社，2010：25-49.(WANG Xuguang. Handbook of blasting[M]. Beijing：Metallurgical Industry Press，2010：25-49.(in Chinese))
[15]	SAHARAN M R，MITRI H S，JETHWA J L. Rock fracturing by explosive energy：review of state-of-the-art[J]. Fragblast，2006，10(1/2)：61-81.
[16]	WANG W，WANG W，YUAN W，et al. Numerical simulation of the effect of water-decoupling charge blasting on reservoir permeability enhancement[J]. Geomatics，Natural Hazards and Risk，2022，13：2 356-2 384.
[17]	张嘉凡，高壮，程树范，等. 煤岩HJC模型参数确定及液态CO2爆破特性研究[J]. 岩石力学与工程学报，2021，40(增1)：2 633-2 642.(ZHANG Jiafan，GAO Zhuang，CHENG Shufan，et al. Determination of HJC model parameters of coal and rock and study on liquid CO2 blasting characteristics[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(Supp.1)：2 633-2 642.(in Chinese))
[18]	夏祥，李海波，王晓炜，等. 核电工程中的CO2致裂与炸药爆破地表振动传播规律试验研究[J]. 岩石力学与工程学报，2021，40(7)：1 350-1 356.(XIA Xiang，LI Haibo，WANG Xiaowei，et al. Experimental study on propagation law of surface vibration induced by CO2 fracturing and explosive blasting in nuclear power engineering[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(7)：1 350-1 356.(in Chinese))
[19]	杨仁树，丁晨曦，杨立云. 高应力状态下穿过层理爆破致裂的动态行为研究[J]. 岩石力学与工程学报，2018，37(4)：801-808.(YANG Renshu，DING Chenxi，YANG Liyun. Study on the dynamic behavior of blasting fracturing through bedding under high stress state[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(4)：801-808.(in Chinese))
[20]	XU Z G，ZHANG J S，SHAO L，et al. Numerical simulation investigation on the seepage characteristics of aperture dilated rough single fracture under two-way hydro-mechanical coupling effect[J]. Gas Science and Engineering，2023，110：204865.
[21]	CHEN Y F，HU S H，WEI K，et al. Experimental characterization and micromechanical modeling of damage-induced permeability variation in Beishan granite[J]. International Journal of Rock Mechanics and Mining Sciences，2014，71：64-76.
[22]	JIANG T，SHAO J F，XU W Y，et al. Experimental investigation and micromechanical analysis of damage and permeability variation in brittle rocks[J]. International Journal of Rock Mechanics and Mining Sciences，2010，47(5)：703-713.
[23]	王媛. 单裂隙面渗流与应力的耦合特性[J]. 岩石力学与工程学报，2002，21(1)：83-87.(WANG Yuan. Coupling characteristics of seepage and stress on a single fracture surface[J]. Chinese to Journal of Rock Mechanics and Engineering，2002，21(1)：83-87.(in Chinese))
[24]	姚池，赵明，杨建华，等. 基于刚体弹簧-等效离散裂隙网络耦合方法的水压致裂数值模型[J]. 岩石力学与工程学报，2018，37(6)：1 438-1 445.(YAO Chi，ZHAO Ming，YANG Jianhua，et al. Hydraulic fracturing numerical model based on rigid body spring-equivalent discrete fracture network coupling method[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(6)：1 438-1 445. (in Chinese))
[25]	何忱，姚池，杨建华，等. 基于等效离散裂隙网络的三维裂隙岩体渗流模型[J]. 岩石力学与工程学报，2019，38(增1)：2 748-2 759.(HE Chen，YAO Chi，YANG Jianhua，et al. Three-dimensional seepage model of fractured rock mass based on equivalent discrete fracture network[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(Supp.1)：2 748-2 759.(in Chinese))
[26]	YAN C Z，JIAO Y Y. A 2D fully coupled hydro-mechanical finite-discrete element model with real pore seepage for simulating the deformation and fracture of porous medium driven by fluid[J] Computers and Structures，2018，196：311-326.
[27]	MUNJIZA，ANDREWS A，WHITE K，et al. Combined single and smeared crack model in combined finite-discrete element method[J]. International Journal for Numerical Methods in Engineering，1999，44(1)：41-57.
[28]	MUNJIZA A .The combined finite-discrete element method[M]. [S. l.]：[s. n.]，2004：277-288.
[29]	陈必光，宋二祥，程晓辉. 二维裂隙岩体渗流传热的离散裂隙网络模型数值计算方法[J]. 岩石力学与工程学报，2014，33(1)：43-51. (CHEN Biguang，SONG Erxiang，CHENG Xiaohui. Numerical calculation method of discrete fracture network model for seepage and heat transfer in two-dimensional fractured rock mass[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(1)：43-51.(in Chinese))
[30]	YAN C Z，WANG T，KE W H，et al. A 2D FDEM-based moisture diffusion-fracture coupling model for simulating soil desiccation cracking[J]. Acta Geotechnica，2021，16：2 609-2 628.
[31]	严成增，郑宏，孙冠华，等. 模拟水压致裂的二维FDEM-flow方法[J]. 岩石力学与工程学报，2015，34(1)：67-75.(YAN Chengzeng，ZHENG Hong，SUN Guanhua，et al. Two-dimensional FDEM-flow method for simulating hydraulic fracturing[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(1)：67-75.(in Chinese))
[32]	YAN C Z，FAN H W，HUANG D R，et al. A 2D mixed fracture-pore seepage model and hydromechanical coupling for fractured porous media[J]. Acta Geotechnica，2021，16(10)：3 061-3 086.
[33]	DENG P H，LIU Q S，LU H F. A novel joint element parameter calibration procedure for the combined finite-discrete element method[J]. Engineering Fracture Mechanics，2022，276(B)：108 924.
[34]	YAN C Z，ZHAO Z H，YANG Y，et al. A three-dimensional thermal-hydro-mechanical coupling model for simulation of fracturing driven by Multiphysics[J]. Computers and Geotechnics，2023，155：105162.
[35]	彭守建，陈灿灿，许江，等. 基于巴西劈裂试验的岩石应力-应变曲线荷载速率依存性研究[J]. 岩石力学与工程学报，2018，37(增1)：3 247-3 252.(PENG Shoujian，CHEN Cancan，XU Jiang，et al. Load rate dependence of rock stress-strain curve based on Brazilian splitting test[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(Supp.1)：3 247-3 252.(in Chinese))
[36]	YAN C Z，JIAO Y Y，ZHENG H. A fully coupled three-dimensional hydro-mechanical finite discrete element approach with real porous seepage for simulating 3D hydraulic fracturing[J]. Computers and Geotechnics，2018，96：73-89.
[37]	YAN C Z，XIE X，REN Y H，et al. A FDEM-based 2D coupled thermal-hydro-mechanical model for multiphysical simulation of rock fracturing[J].?International Journal of Rock Mechanics and Mining Sciences，2022，149：104964.
[38]	YAN C Z，ZHENG Y C，WANG G. A 2D adaptive finite-discrete element method for simulating fracture and fragmentation in geomaterials[J]. International Journal of Rock Mechanics and Mining Sciences，2023，169：105439.
[39]	DUVALL W I J G. Strain-wave shapes in rock near explosions[J]. Geophysics，1953，18：310-323.
[40]	胡英国，卢文波，陈明，等. 岩石爆破损伤模型的比选与改进[J].岩土力学，2012，33(11)：3 278-3 284.(HU Yingguo，LU Wenbo，CHEN Ming，et al. Comparison and improvement of rock blasting damage model[J]. Rock and Soil Mechanics，2012，33(11)：3 278-3 284.(in Chinese))