海岛环境下地下水封油库竖直水幕系统水封可靠性研究
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摘要
我国地下水封油库多建造在沿海地区陆地岸线以内,在海岛建造地下水封油库尚未有先例。海岛四周为海水包围,地下洞室的开挖会导致海水入侵,影响地下油库的使用寿命。为保证地下洞库的水封可靠性需布置水幕系统,现今已建油库的水幕系统多以水平水幕为主,尚未有专门针对竖直水幕系统水封可靠性的相关研究。竖直水幕系统相比于水平水幕系统具有操作简单、对原岩扰动小等优点,且可以起到对海水的"屏障"作用,因此开展海岛环境下地下水封油库竖直水幕系统的水封可靠性研究具有重要意义。论文采用数值模拟方法,研究竖直水幕孔的布置方式,根据正交试验确定竖直水幕孔的最佳布置参数;以浙江某海岛地下水封油库为依托,通过无水幕、设置水平水幕和设置竖直水幕3种情况的对比分析,研究竖直水幕系统的水封可靠性。研究得出:在只设置竖直水幕系统情况下,可以满足水封条件,且相较于水平水幕系统,竖直水幕系统可以更好地隔绝相邻主洞室间的串油。该研究成果为海岛环境下地下水封油库水幕系统优化设置提供了理论依据。
Most of the underground water-sealed oil storage caverns in China are built in coastal areas and within the continental coastline. There are few studies about the construction of underground water-sealed oil storage cavern in island. Seawater surrounds the island,and the excavation of underground caverns can lead to seawater intrusion,affecting the service life of underground water-sealed oil storage cavern. In order to ensure the water-sealed reliability of underground cavern, it is necessary to arrange the water curtain system. Nowadays,underground water-sealed oil storage cavern is mostly equipped with horizontal water curtain system. There are few researches on water-sealed reliability of vertical water curtain system. Compared to horizontal water curtain system,vertical water curtain system has advantages of easy to drill and small disturbance on original rock. In addition,vertical water curtain system can weaken the seawater intrusion. Therefore,the study on water-sealed reliability of vertical water curtain system has great significance. In this paper,we use numerical simulation to research the arrangement methods of vertical water curtain system. According to the orthogonal design,we obtain the best arrangement parameters of the vertical water curtain boreholes. Based on the underground water-sealed oil storage cavern of an island in Zhejiang province,we study the water-sealed reliability of vertical water curtain system by comparing the results of cavern without water curtain system,cavern with horizontal water curtain system and cavern with vertical water curtain system. The results show that in the case of only setting vertical water curtain system,it can satisfy the water-sealed reliability. Moreover,compared with horizontal water curtain system,vertical water curtain system can better prevent the flow of oil from one cavern to another. The results provide theoretical basis for the water-sealed reliability of vertical water curtain system in underground water-sealed oil storage cavern in island environment.
Most of the underground water-sealed oil storage caverns in China are built in coastal areas and within the continental coastline. There are few studies about the construction of underground water-sealed oil storage cavern in island. Seawater surrounds the island,and the excavation of underground caverns can lead to seawater intrusion,affecting the service life of underground water-sealed oil storage cavern. In order to ensure the water-sealed reliability of underground cavern, it is necessary to arrange the water curtain system. Nowadays,underground water-sealed oil storage cavern is mostly equipped with horizontal water curtain system. There are few researches on water-sealed reliability of vertical water curtain system. Compared to horizontal water curtain system,vertical water curtain system has advantages of easy to drill and small disturbance on original rock. In addition,vertical water curtain system can weaken the seawater intrusion. Therefore,the study on water-sealed reliability of vertical water curtain system has great significance. In this paper,we use numerical simulation to research the arrangement methods of vertical water curtain system. According to the orthogonal design,we obtain the best arrangement parameters of the vertical water curtain boreholes. Based on the underground water-sealed oil storage cavern of an island in Zhejiang province,we study the water-sealed reliability of vertical water curtain system by comparing the results of cavern without water curtain system,cavern with horizontal water curtain system and cavern with vertical water curtain system. The results show that in the case of only setting vertical water curtain system,it can satisfy the water-sealed reliability. Moreover,compared with horizontal water curtain system,vertical water curtain system can better prevent the flow of oil from one cavern to another. The results provide theoretical basis for the water-sealed reliability of vertical water curtain system in underground water-sealed oil storage cavern in island environment.
引文
Aberg B.1977.Prevention of gas leakage from unlined reservoirs in rock[C]//Proceedings of the First International Symposium on Storage in Excavated Rock Caverns.Stockholm:Pergamon Press:399-413.
Dai Y F,Zhou Z F.2015.Steady seepage simulation of underground oil storage caverns based on Signorini type variational inequality formulation[J].Geosciences Journal,19(2):341-355.
Lee E,Lim J W,Moo H S,et al.2015.Assessment of seawater intrusion into underground oil storage cavern and prediction of its sustainability[J].Environmental Earth Sciences,73(3):1179-1190.
Goodall D C,Aberg B,Brekke T L.1988.Fundamentals of gas containment in unlined rock caverns[J].Rock Mechanics and Rock Engineering,21(4):235-258.
Hamberger U.1991.Case history:Blowout at an LPG storage cavern in Sweden[J].Tunnelling and Underground Space Technology,6(1):119-120.
Jiang S,Huang M,Fu J J,et al.2017.Experiment study on similarity ratio of similar material of rock mass for shaking table test of pile in karst region[J].Journal of Engineering Geology,25(3):671-677.
Kjrholt H,Broch E.1992.The water curtain-A successful means of preventing gas leakage from high-pressure,unlined rock caverns[J].Tunnelling and Underground Space Technology,7(2):127-132.
Li S C,Ping Y,Wang Z C,et al.2012.Assessments of containment nd stability of underground crude oil storage caverns based on fluidsolid coupling theory for discrete medium[J].Chinese Journal of Rock Mechanicsand Engineering,31(11):2161-2170.
Li S C,Wang Z C,Ping Y,et al.2014.Discrete element analysis of hydro-mechanical behavior of a pilot underground crude oil storage facility in granite in China[J].Tunnelling and Underground Space Technology,40(40):75-84.
Lin F,Ren F,Luan H B,et al.2016.Effectiveness analysis of watersealing for underground LPG storage[J].Tunnelling and Underground Space Technology,51:270-290.
Park J J,Jeon S,Chung Y S.2005.Design of Pyongtaek LPG storage terminal underneath Lake Namyang:A case study[J].Tunnelling and Underground Space Technology,20(5):463-478.
Ravandi E G,Rahmannejad R,Karimi-Nasab S,et al.2016.Sensitivity analysis of effective parameters on water curtain performance for crude oil storage in Iranian URC using the 2k,factorial design and numerical modeling[J].Tunnelling and Underground Space Technology,58:247-256.
Shi L,Zhang B,Wang L,et al.2018.Functional efficiency assessment o the water curtain system in an underground water-sealed oil storage cavern based on time-series monitoring data[J].Engineering Geology,239:79-95.
Song K,Yan E C,Chen G.2014.Hydraulic conductivity estimation o rock mass in water sealed underground storage caverns[J].Chinese Journal of Rock Mechanics and Engineering,33(3):575-580.
Song K,Yan E C,Gao L T,et al.2014.Influence of anisotropic permeability of rockmass on stability of underground oil storage caverns[J].Chinese Journal of Rock Mechanics and Engineering,33(S2):3803-3809.
Song K,Yan E C,Yang J,et al.2011.Based on orthogonal design to optimize water sealed underground oil storage caverns[J].Rock and Soil Mechanics,32(11):3503-3507.
Suh J,Chung H,Kim C.1986.A study on the condition of preventing gas leakage from the unlined rock cavern[C]//Large Rock Caverns:Proceedings of the International Symposium.Helsinki:Pergamon Press:725-736.
The National Standards Compilation Group of the People's Republic of China.2009.Code for design of underground oil storage in rock caverns(GB 50455-2008)[S].Beijing:China Planning Press.
Wan L,Jiang X W,Wang X S.2010.A common regularity of aquifers:the decay in hydraulic conductivity with depth[J].Geological Journal of China Universities,16(1):7-12.
Wang Z C,Li S C,Qiao L P,et al.2016.Assessment methods for containment properties of underground crude oil storage caverns and their applications[J].Chinese Journal of Geotechnical Engineering,38(11):2033-2042.
Wang Z C,Li S C,Xue Y G,et al.2014.Design principles and interconnectivity determination method of groundwater curtaining system for underground crude oil storage caverns[J].Chinese Journal of Rock Mechanics and Engineering,33(2):276-286.
Wang Z Q,Yan E C,Ji H B,et al.2013.Regional stability of underground water sealed storagecaverns around western pacific coastal area in China[J].Journal of Engineering Geology,21(4):626-633.
Wang Z Q,Yan E C,Ji H B.2016.In-situ stress field and geological tectonic analysis at Huangdao water-sealed underground oil carven site[J].Journal of Engineering Geology,24(1):136-141.
Wang Z C,Li S C,Qiao L P.2015.Design and test aspects of a water curtain system for underground oil storage caverns in China[J].Tunnelling and Underground Space Technology,48:20-34.
Yang M J,Guan B S.2001.Theoretical and numerical simulation study of underground gas-storage caverns with water curtain[J].Chinese Journal of Rock Mechanics and Engineering,20(3):301-305.
You X Z,Cheng G,Hu C.2010.Seepage simulation of Huangdao underground petroleum storage caverns[J].Ground Water,32(2):140-141.
Yu C,Li H B,Zhou Q S.2012.Analysis of surrounding rock stability of cavern group and seepage field at Dalian underground oil storage[J].Chinese Journal of Rock Mechanics and Engineering,31(S1):2704-2710.
Zhang B,Huo D P,Peng Z H,et al.2015.GIS-based approach for construction suitability evaluation of underground water-sealed oil storage caverns in east coast of China[J].Journal of Engineering Geology,23(4):801-808.
Zhang B,Li W M,Feng F,et al.2012.Numerical simulation for fluidsolid coupling characteristics in surrounding rock of underground water-sealed oil storage based[J].Journal of Engineering Geology,20(5):789-795.
Zhang B,Shi L,Yang S,et al.2016.Minimum separation distance between existing and newly constructing underground water-sealed oil storages[J].Journal of Engineering Geology,24(5):815-822.
Zhang Z G,Tan Z S,Wan J L,et al.2003.Three-dimensional seepage analysis of underground LPG storage with water curtain[J].Chinese Journal of Geotechnical Engineering,25(3):331-335.
Zhao X M.2006.Design of experiments[M].Beijing:Science Press.
江松,黄明,付俊杰,等.2017.岩溶桩基振动台试验中岩体相似材料的配比研究[J].工程地质学报,25(3):671-677.
李术才,平洋,王者超,等.2012.基于离散介质流固耦合理论的地下石油洞库水封性和稳定性评价[J].岩石力学与工程学报,31(11):2161-2170.
宋琨,晏鄂川,陈刚.2014.地下水封洞库岩体渗透系数估算研究[J].岩石力学与工程学报,33(3):575-580.
宋琨,晏鄂川,高连通,等.2014.岩体渗透各向异性对地下水封油库围岩稳定性的影响[J].岩石力学与工程学报,33(S2):3803-3809.
宋琨,晏鄂川,杨举,等.2011.基于正交设计的地下水封洞库群优化[J].岩土力学,32(11):3503-3507.
万力,蒋小伟,王旭升.2010.含水层的一种普遍规律:渗透系数随深度衰减[J].高校地质学报,16(1):7-12.
王章琼,晏鄂川,季惠斌,等.2013.我国环太平洋西海岸地区地下水封洞库选址区域稳定性研究[J].工程地质学报,21(4):626-633.
王章琼,晏鄂川,季惠斌.2016.黄岛地下水封油库地应力场及地质构造作用分析[J].工程地质学报,24(1):136-141.
王者超,李术才,薛翊国,等.2014.地下石油洞库水幕设计原则与连通性判断方法研究[J].岩石力学与工程学报,33(2):276-286.
杨明举,关宝树.2001.地下水封储气洞库原理及数值模拟分析[J].岩石力学与工程学报,20(3):301-305.
犹香智,陈刚,胡成.2010.黄岛地下储油库渗流场模拟[J].地下水,32(2):140-141.
于崇,李海波,周庆生.2012.大连地下石油储备库洞室群围岩稳定性及渗流场分析[J].岩石力学与工程学报,31(S1):2704-2710.
张彬,霍东平,彭振华,等.2015.基于GIS的中国东部沿海地区地下水封油库建造适宜性研究[J].工程地质学报,23(4):801-808.
张彬,李卫明,封帆,等.2012.基于COMSOL的地下水封油库围岩流固耦合特征模拟研究[J].工程地质学报,20(5):789-795.
张彬,石磊,杨森,等.2016.新建地下水封油库对附近运行油库水封可靠性影响研究[J].工程地质学报,24(5):815-822.
张振刚,谭忠盛,万姜林,等.2003.水封式LPG地下储库渗流场三维分析[J].岩土工程学报,25(3):331-335.
赵选民.2006.实验设计方法[M].北京:科学出版社.
中华人民共和国国家标准编写组.2009.地下水封石洞油库设计规范(GB 50455-2008)[S].北京:中国计划出版社.
Dai Y F,Zhou Z F.2015.Steady seepage simulation of underground oil storage caverns based on Signorini type variational inequality formulation[J].Geosciences Journal,19(2):341-355.
Lee E,Lim J W,Moo H S,et al.2015.Assessment of seawater intrusion into underground oil storage cavern and prediction of its sustainability[J].Environmental Earth Sciences,73(3):1179-1190.
Goodall D C,Aberg B,Brekke T L.1988.Fundamentals of gas containment in unlined rock caverns[J].Rock Mechanics and Rock Engineering,21(4):235-258.
Hamberger U.1991.Case history:Blowout at an LPG storage cavern in Sweden[J].Tunnelling and Underground Space Technology,6(1):119-120.
Jiang S,Huang M,Fu J J,et al.2017.Experiment study on similarity ratio of similar material of rock mass for shaking table test of pile in karst region[J].Journal of Engineering Geology,25(3):671-677.
Kjrholt H,Broch E.1992.The water curtain-A successful means of preventing gas leakage from high-pressure,unlined rock caverns[J].Tunnelling and Underground Space Technology,7(2):127-132.
Li S C,Ping Y,Wang Z C,et al.2012.Assessments of containment nd stability of underground crude oil storage caverns based on fluidsolid coupling theory for discrete medium[J].Chinese Journal of Rock Mechanicsand Engineering,31(11):2161-2170.
Li S C,Wang Z C,Ping Y,et al.2014.Discrete element analysis of hydro-mechanical behavior of a pilot underground crude oil storage facility in granite in China[J].Tunnelling and Underground Space Technology,40(40):75-84.
Lin F,Ren F,Luan H B,et al.2016.Effectiveness analysis of watersealing for underground LPG storage[J].Tunnelling and Underground Space Technology,51:270-290.
Park J J,Jeon S,Chung Y S.2005.Design of Pyongtaek LPG storage terminal underneath Lake Namyang:A case study[J].Tunnelling and Underground Space Technology,20(5):463-478.
Ravandi E G,Rahmannejad R,Karimi-Nasab S,et al.2016.Sensitivity analysis of effective parameters on water curtain performance for crude oil storage in Iranian URC using the 2k,factorial design and numerical modeling[J].Tunnelling and Underground Space Technology,58:247-256.
Shi L,Zhang B,Wang L,et al.2018.Functional efficiency assessment o the water curtain system in an underground water-sealed oil storage cavern based on time-series monitoring data[J].Engineering Geology,239:79-95.
Song K,Yan E C,Chen G.2014.Hydraulic conductivity estimation o rock mass in water sealed underground storage caverns[J].Chinese Journal of Rock Mechanics and Engineering,33(3):575-580.
Song K,Yan E C,Gao L T,et al.2014.Influence of anisotropic permeability of rockmass on stability of underground oil storage caverns[J].Chinese Journal of Rock Mechanics and Engineering,33(S2):3803-3809.
Song K,Yan E C,Yang J,et al.2011.Based on orthogonal design to optimize water sealed underground oil storage caverns[J].Rock and Soil Mechanics,32(11):3503-3507.
Suh J,Chung H,Kim C.1986.A study on the condition of preventing gas leakage from the unlined rock cavern[C]//Large Rock Caverns:Proceedings of the International Symposium.Helsinki:Pergamon Press:725-736.
The National Standards Compilation Group of the People's Republic of China.2009.Code for design of underground oil storage in rock caverns(GB 50455-2008)[S].Beijing:China Planning Press.
Wan L,Jiang X W,Wang X S.2010.A common regularity of aquifers:the decay in hydraulic conductivity with depth[J].Geological Journal of China Universities,16(1):7-12.
Wang Z C,Li S C,Qiao L P,et al.2016.Assessment methods for containment properties of underground crude oil storage caverns and their applications[J].Chinese Journal of Geotechnical Engineering,38(11):2033-2042.
Wang Z C,Li S C,Xue Y G,et al.2014.Design principles and interconnectivity determination method of groundwater curtaining system for underground crude oil storage caverns[J].Chinese Journal of Rock Mechanics and Engineering,33(2):276-286.
Wang Z Q,Yan E C,Ji H B,et al.2013.Regional stability of underground water sealed storagecaverns around western pacific coastal area in China[J].Journal of Engineering Geology,21(4):626-633.
Wang Z Q,Yan E C,Ji H B.2016.In-situ stress field and geological tectonic analysis at Huangdao water-sealed underground oil carven site[J].Journal of Engineering Geology,24(1):136-141.
Wang Z C,Li S C,Qiao L P.2015.Design and test aspects of a water curtain system for underground oil storage caverns in China[J].Tunnelling and Underground Space Technology,48:20-34.
Yang M J,Guan B S.2001.Theoretical and numerical simulation study of underground gas-storage caverns with water curtain[J].Chinese Journal of Rock Mechanics and Engineering,20(3):301-305.
You X Z,Cheng G,Hu C.2010.Seepage simulation of Huangdao underground petroleum storage caverns[J].Ground Water,32(2):140-141.
Yu C,Li H B,Zhou Q S.2012.Analysis of surrounding rock stability of cavern group and seepage field at Dalian underground oil storage[J].Chinese Journal of Rock Mechanics and Engineering,31(S1):2704-2710.
Zhang B,Huo D P,Peng Z H,et al.2015.GIS-based approach for construction suitability evaluation of underground water-sealed oil storage caverns in east coast of China[J].Journal of Engineering Geology,23(4):801-808.
Zhang B,Li W M,Feng F,et al.2012.Numerical simulation for fluidsolid coupling characteristics in surrounding rock of underground water-sealed oil storage based[J].Journal of Engineering Geology,20(5):789-795.
Zhang B,Shi L,Yang S,et al.2016.Minimum separation distance between existing and newly constructing underground water-sealed oil storages[J].Journal of Engineering Geology,24(5):815-822.
Zhang Z G,Tan Z S,Wan J L,et al.2003.Three-dimensional seepage analysis of underground LPG storage with water curtain[J].Chinese Journal of Geotechnical Engineering,25(3):331-335.
Zhao X M.2006.Design of experiments[M].Beijing:Science Press.
江松,黄明,付俊杰,等.2017.岩溶桩基振动台试验中岩体相似材料的配比研究[J].工程地质学报,25(3):671-677.
李术才,平洋,王者超,等.2012.基于离散介质流固耦合理论的地下石油洞库水封性和稳定性评价[J].岩石力学与工程学报,31(11):2161-2170.
宋琨,晏鄂川,陈刚.2014.地下水封洞库岩体渗透系数估算研究[J].岩石力学与工程学报,33(3):575-580.
宋琨,晏鄂川,高连通,等.2014.岩体渗透各向异性对地下水封油库围岩稳定性的影响[J].岩石力学与工程学报,33(S2):3803-3809.
宋琨,晏鄂川,杨举,等.2011.基于正交设计的地下水封洞库群优化[J].岩土力学,32(11):3503-3507.
万力,蒋小伟,王旭升.2010.含水层的一种普遍规律:渗透系数随深度衰减[J].高校地质学报,16(1):7-12.
王章琼,晏鄂川,季惠斌,等.2013.我国环太平洋西海岸地区地下水封洞库选址区域稳定性研究[J].工程地质学报,21(4):626-633.
王章琼,晏鄂川,季惠斌.2016.黄岛地下水封油库地应力场及地质构造作用分析[J].工程地质学报,24(1):136-141.
王者超,李术才,薛翊国,等.2014.地下石油洞库水幕设计原则与连通性判断方法研究[J].岩石力学与工程学报,33(2):276-286.
杨明举,关宝树.2001.地下水封储气洞库原理及数值模拟分析[J].岩石力学与工程学报,20(3):301-305.
犹香智,陈刚,胡成.2010.黄岛地下储油库渗流场模拟[J].地下水,32(2):140-141.
于崇,李海波,周庆生.2012.大连地下石油储备库洞室群围岩稳定性及渗流场分析[J].岩石力学与工程学报,31(S1):2704-2710.
张彬,霍东平,彭振华,等.2015.基于GIS的中国东部沿海地区地下水封油库建造适宜性研究[J].工程地质学报,23(4):801-808.
张彬,李卫明,封帆,等.2012.基于COMSOL的地下水封油库围岩流固耦合特征模拟研究[J].工程地质学报,20(5):789-795.
张彬,石磊,杨森,等.2016.新建地下水封油库对附近运行油库水封可靠性影响研究[J].工程地质学报,24(5):815-822.
张振刚,谭忠盛,万姜林,等.2003.水封式LPG地下储库渗流场三维分析[J].岩土工程学报,25(3):331-335.
赵选民.2006.实验设计方法[M].北京:科学出版社.
中华人民共和国国家标准编写组.2009.地下水封石洞油库设计规范(GB 50455-2008)[S].北京:中国计划出版社.