Research on mechanism and countermeasure of borehole wall destabilization in complex formation of Jinchuan mining area
-
摘要: 金川矿区目前资源开采逐渐向深部转移,采用的主要探矿方式为在采矿巷道中布设中深钻孔,由于矿区地质条件复杂,常出现钻孔垮孔、造浆、地层涌水、破碎等情况,影响了勘察效率。为了解矿区复杂地层影响钻孔孔壁稳定性的原因,对从矿区采取的岩样进行理化分析、微观分析和力学性质分析,结果表明金川矿区钻孔孔壁失稳主要是因为钻探过程中遇强水敏性、强破碎、强涌水和高地应力地层。通过对矿区钻孔孔壁进行稳定性评价,从冲洗液技术和工程技术等方面制定了钻探技术对策,为矿区钻探施工提供了技术支撑。Abstract: At present, the resource exploitation in Jinchuan mining area is gradually going to the deep part, and laying medium-deep boreholes in the mining roadways is the main exploration method. Complex geological conditions such as borehole collapse, slurry making, water inrush and strata breaking often occur, which greatly affect the exploration efficiency. In order to find the reasons why the complex strata in the mining area affect the stability of borehole walls, physical and chemical analysis, micro and mechenical analysis of the rock samples taken from the mining area are made. The results show that the strata encountered with strong water-sensitive, highly fractured, strong water inrush and high geostress during drilling is the main reason which affect the borehole wall destabilization in Jinchuan mining area. Through the stability evaluation of borehole wall in the mine area, drilling countermeasures for complex strata were made from the perspectives of flushing fluid technology and engineering technology, which provides technical support for drilling work of the mine area.
-
-
[1] 张宇,冯晅,恩和得力海,等.金川矿区及周边地球物理特征和背景噪声成像的应用[J].世界地质,2021,40(2):419-427.
ZHANG Yu, FENG Xuan, Enhedelihai, et al. Geophysical characteristics and application of ambient noise tomography in Jinchuan mining area and surroundings[J]. World Geology, 2021,40(2):419-427.
[2] [2] 张重远,吴满路,廖椿庭.金川三矿地应力测量及应力状态特征研究[J].岩土力学,2013,34(11):3254-3260.
ZHANG Chongyuan, WU Manlu, LIAO Chunting. In-situ stress measurement and study of stress state characteristics of Jinchuan No.3 Mine [J]. Rock and Soil Mechanics, 2013,34(11):3254-3260.
[3] [3] 曹平,张科,万琳辉,等.金川矿山深部采掘条件下岩石力学研究与实践[J].岩石力学与工程学报,2012,31(7):1334-1341.
CAO Ping, ZHANG Ke, WAN Linhui, et al. Study and practice of rock mechanics in jinchuan mine under deep exploitation [J]. Chinese Journal of Rock Mechanics and Engineering, 2012, 31(7):1334-1341.
[4] [4] 马崇武,慕青松,苗天德,等.金川矿区原岩应力场与软弱层带构造的关系[J].金属矿山,2007(11):83-86,105.
MA Chongwu, MU Qingsong, MIAO Tiande, et al. Relationship between in-situ rock stress field and weak intercalation in Jinchuan Mine[J]. Metal Mine, 2007(11):83-86,105.
[5] [5] 周青,杨新安,高艳灵,等.金川不良岩体分类及其巷道支护研究[J].辽宁工程技术大学学报(自然科学版),2002(2):140-142.
ZHOU Qing, YANG Xin’an, GAO Yanling, et al. Study on the classification and support of weak rock mass roadway in the Jinchuan Nickel Mine[J]. Journal of Liaoning Technical University (Natural Science), 2002(2):140-142.
[6] [6] 杨亚平,杨有林,穆玉生,等.金川矿区深部高应力破碎岩体巷道支护技术研究及应用[J].中国矿业,2018,27(11):99-103.
YANG Yaping, YANG Youlin, MU Yusheng, et al. Research and application of supporting technology of fractured rock roadway with high stress of deep ground in Jinchuan mining area[J]. China Mining Magazine, 2018,27(11):99-103.
[7] [7] 王志远.金川高应力碎裂围岩巷道环境强化技术[J].中国矿山工程,2021,50(6):35-38.
WANG Zhiyuan. Reinforcement technologies of the roadways surrounded by high stress fractured rocks in Jinchuan mining area [J]. China Mine Engineering, 2021,50(6):35-38.
[8] [8] 米文满,王俊超,张永龙,等.甘肃金川铜镍矿区F1断层地质特征及其影响[J].现代矿业,2018,34(3):107-110,114.
MI Wenman, WANG Junchao, ZHANG Yonglong, et al. Geological characteristics and its influence of F1 fault in Jinchuan Cu-Ni mining area in Gansu Province[J]. Modern Mining, 2018,34(3):107-110,114.
[9] [9] 宋厚园.缓角度绳索取芯钻孔井壁稳定性分析及钻井液研究[D].长沙:中南大学,2012.SONG Houyuan. Delay angle wireline core drilling hole wall stability analysis and research on drilling fluid[D]. Changsha: Central South University, 2012.
[10] [10] 张统得,陈礼仪,贾军,等.汶川地震断裂带科学钻探项目钻井液技术与应用[J]. 探矿工程(岩土钻掘工程),2014,41(9): 139-142,145.
ZHANG Tongde, CHEN Liyi, JIA Jun, et al. The drilling fluid technology and application of Wenchuan Earthquake Fault Scientific Drilling Project[J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2014, 41(9):139-142,145.
[11] [11] 张统得.汶川地震断裂带科学钻探泥浆体系的研究及应用[D].成都:成都理工大学,2013.ZHANG Tongde. Research and application of mud system for wenchuan earthquake fault scientific drilling project[D]. Chengdu: Chengdu University of Technology, 2012.
[12] [12] 李之军,陈礼仪,贾军,等.汶川地震断裂带科学钻探一号孔(WFSD-1)断层泥孔段泥浆体系的研究与应用[J].探矿工程(岩土钻掘工程),2009,36(12):13-15,19.
LI Zhijun, CHEN Liyi, JIA Jun, et al. Research and application of drilling fluid system for fault gouge section of the hole WFSD-1 of Wenchuan Earthquake Fault Scientific Drilling Project[J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2009,36(12):13-15,19.
[13] [13] 刘厚彬,勐睿,孟英峰,等.辉绿岩地层井壁垮塌机理及主控因素实验研究[J].科学技术与工程,2017,17(8):121-127.
LIU Houbin, MENG Rui, MENG Yingfeng, et al. Experimental studies on the wellbore collapse mechanism and main controlling factors of diabase formations[J]. Science Technology and Engineering, 2017,17(8):121-127.
[14] [14] 王跃鹏,孙正财,刘向君,等.煤层割理结构及其对井壁稳定的影响研究[J].油气藏评价与开发,2020,10(4):45-52.
WANG Yuepeng, SUN Zhengcai, LIU Xiangjun, et al. Study on cleat structure and its influence on wellbore stability in coal seams[J]. Reservoir Evaluation and Development, 2020,10(4):45-52.
[15] [15] 张雯,曹平,张向阳,等.金川矿区岩石的膨胀和软化特性试验及分析[J].中南大学学报(自然科学版),2010,41(5):1913-1917.
ZHANG Wen, CAO Ping, ZHANG Xiangyang, et al. Analysis and research on swelling and strain softening of rock in Jinchuan mining district[J]. Journal of Central South University(Science and Technology), 2010,41(5):1913-1917.
[16] [16] 邓仕奎,李华坤,陈鑫,等.土库曼斯坦白垩系不稳定地层钻井液技术[J].钻采工艺,2020,43(5):91-94,10-11.
DENG Shikui, LI Huakun, CHEN Xin, et al. Drilling fluid technology in cretaceous unstable claystone formation of Turkmenistan[J]. Drilling & Production Technology, 2020,43(5):91-94,10-11.
[17] [17] 刘敬平,孙金声.钻井液活度对川滇页岩气地层水化膨胀与分散的影响[J].钻井液与完井液,2016,33(2):31-35.
LIU Jingping, SUN Jinsheng. Effects of drilling fluid activity on hydration and dispersion of formation rocks in shale gas drilling in Chuandian area[J]. Drilling Fluid & Completion Fluid, 2016,33(2):31-35.
[18] [18] 蔡美峰,乔兰,于波,等.金川二矿区深部地应力测量及其分布规律研究[J].岩石力学与工程学报,1999(4):46-50.
CAI Meifeng, QIAO Lan, YU Bo, et al. Results and analysis of in-situ stress measurement at deep position of No.2 mining area of Jinchuan Nichkel Mine[J]. Chinese Journal of Rock Mechanics and Engineering, 1999(4): 46-50.
[19] [19] 刘高,韩文峰,聂德新.金川矿区地应力场特征[J].天津城市建设学院学报,2002(2):81-85.LIU Gao, HAN Wenfeng, NIE Dexin. Characteristics of earth stress field of Jinchuan mine area[J]. Journal of Tianjin Chengjian University, 1999(4):46-50.
[20] [20] 刘卫东,李金鑫,孙伟,等.金川三矿区东部贫矿现场地应力测量及应力分析[J].矿冶,2020,29(5):15-20,56.
LIU Weidong, LI Jinxin, SUN Wei, et al. In-situ stress measurement and stress analysis of the east lean ore in the No.3 mining area of Jinchuan[J]. Mining and Metallurgy, 2020,29(5):15-20,56.
[21] [21] 张光存,杨志强,高谦,等.金川矿区地应力分布规律的回归分析研究[J].黄金,2014,35(12):29-33.
ZHANG Guangcun, YANG Zhiqiang, GAO Qian, et al. Regression analysis of geostress distribution pattern in Jinchuan underground mining area[J]. Gold, 2014,35(12):29-33.
[22] [22] 和秋姣,赖健清,毛先成等.甘肃金川矿区构造应力场与构造演化研究[J].地质找矿论丛,2019,34(2):265-273.
HE Qiujiao, LAI Jianqing, MAO Xiancheng, et al. Tectonic stress field and tectonic evolution in Jinchuan mining district, Gansu Province[J]. Contributions to Geology and Mineral Resources Research, 2019,34(2):265-273.
[23] [23] 瞿亮,王永定,杨晓炳,等.金川Ⅲ矿区地应力现场测量与分布规律研究[J].化工矿物与加工,2018,47(7):65-68.
QU Liang, WANG Yongding, YANG Xiaobing, et al. Research on field measurement and distribution of geostress in Jinchuan III mining area[J]. Industrial Minerals & Processing, 2018,47(7):65-68.
[24] [24] 胡郁乐,杨涛,董海燕.金川科学深钻预导孔钻井液技术研究[J].探矿工程(岩土钻掘工程),2012,39:13-15.
HU Yule, YANG Tao, DONG Haiyan. The research of fluid in Jinchuan deep scientific drilling pilot hole[J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2012,39:13-15.
[25] [25] 王力,孟尚志,陈万钢,等.提高煤层强度的钻井液防塌封堵剂的研制[J].钻井液与完井液,2018,35(5):46-49.
WANG Li, MENG Shangzhi, CHEN Wangang, et al. Development of and study on an anti-sloughing plugging agent used in drilling fluids to strengthen coal beds[J]. Drilling Fluid & Completion Fluid, 2018,35(5):46-49.
[26] [26] 张勤.长庆气田储气库井大井眼钻井液技术[J].钻探工程,2023,50(2):72-79.
ZHANG Qin. Large borehole drilling fluid technology for gas storage wells in Changqing Gas Field[J]. Drilling Engineering, 2023,50(2):72-79.
[27] [27] 张统得,李正前,蒋炳,等.塔里木盆地油气地质调查新乌地1井钻探工艺技术[J].中国地质调查,2019,6(4):58-63.
ZHANG Tongde, LI Zhengqian, JIANG Bing, et al. Drilling technology of well Xinwudi-1 in oil and gas geological survey of Tarim Basin[J]. Geological Survey of China, 2019,6(4):58-63.
[28] [28] 刘兵.四川尔呷地吉铅锌矿区复杂地层钻探施工技术[J].钻探工程,2022,49(4):87-92.
LIU Bing. Drilling technology for complex formation in the Ergadiji lead-zinc mine area in Sichuan[J]. Drilling Engineering, 2022,49(4):87-92.
-
计量
- 文章访问数: 109
- PDF下载数: 10
- 施引文献: 0