交变气压风险条件下层状盐岩地下储气库注采气大型三维地质力学试验研究

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摘要利用深部盐岩洞穴进行天然气储备是目前国际上广泛采用的一种方法。为研究注采气交变气压、气压变化速率对储气库运行安全的影响，设计研制出三维梯度非均匀加载地质力学模型试验系统、注采气智能控制系统以及基本满足相似条件且具有显著流变特性的层状盐岩模型相似材料。通过江苏金坛盐岩地下储气库注采气大型三维地质力学模型试验，有效获得交变气压、气压变化速率等风险因素对储库运营安全稳定的影响。试验结果表明：采气降压和注采气压变化速率是影响盐腔运营安全的重要因素，洞腔径向收敛位移和径向应变随储气内压的减小逐渐增大，为保证储库运行安全，储库储气内压应大于4 MPa。注采气压变化速率越快，洞腔径向收敛位移和径向应变变化速率越大，因此，应有效控制储气库的注采气压变化速率。研究成果为储库运营安全控制提供可靠的试验依据。

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关键词 ：岩石力学, 层状盐岩, 交变气压, 气压变化速率, 流变相似材料, 大型地质力学模型试验

Abstract：Utilizing the deep salt rock caverns to store the natural gas is the widely adopted method internationally. In order to study the influence of alternating pressure of gas injection and extraction and the gas pressure changing rate on the operation safety of storage，the three-dimensional gradient non-uniform loading geomechanical model test system，the gas injection and extraction intelligent control system and the bedded salt rock similitude material which is of significant rheological property are developed. Through the large scale three-dimensional geomechanical model test of gas injection and extraction for Jintan gas storage in Jiangsu province，the influence of risk factor such as the alternating gas pressure and the gas pressure changing rate on the operation safety of the storage have been got effectively. The test results show that the gas extraction-induced pressure release and the gas pressure changing rate are the important factors which affect the operation safety of the salt rock cavern；and the radial convergence displacement and radial strain increase gradually with the decreasing of the inner pressure of the cavern. The inner pressure value during the storage operation should be greater than 4MPa in order to ensure the operation safety of the cavern. The changing rate of radial displacement and radial strain surrounding the cavern get more rapid with the increasing of the gas injection and extraction changing rate. So，in order to ensure the operation safety of the cavern，the gas pressure changing rate of storage should be controlled effectively. The results of test research provide the reliable experimental evidence for the operation safety controlling of storage.

Key words： rock mechanics bedded salt rockalternating gas pressure gas pressure changing rate similar material for rheology large scale geomechanical model test

收稿日期: 2010-07-01

引用本文:

张强勇1，陈旭光1，张宁1，刘德军1，段抗1，贾超2，刘健2. 交变气压风险条件下层状盐岩地下储气库注采气大型三维地质力学试验研究[J]. 岩石力学与工程学报, 2010, 29(12): 2410-2419.
ZHANG Qiangyong1，CHEN Xuguang1，ZHANG Ning1，LIU Dejun1，DUAN Kang1，JIA Chao2，LIU Jian2. LARGE SCALE THREE-DIMENSIONAL GEOMECHANICAL MODEL TEST OF GAS INJECTION AND EXTRACTION PROCESS FOR SALT ROCK GAS STORAGE UNDER CONDITION OF ALTERNATING GAS PRESSURE RISK. , 2010, 29(12): 2410-2419.

链接本文:

http://www.rockmech.org/CN/Y2010/V29/I12/2410

[1]	HUNSCHE U. Albrecht H. Results of true triaxial strength tests on rock salt[J]. Engineering Fracture Mechanics，1990，35(4)：867-877. " target="_blank">
[2]	SCHULZE O，POPP T，KERN H. Development of damage and permeability in deforming rock salt[J]. Engineering Geology，2001，61(2-3)：163-180. " target="_blank">
[4]	YANG C H，DAEMEN J J K，YIN J H. Experimental investigation of creep behavior of salt rock[J]. International Journal of Rock Mechanics and Mining Sciences，1999，(36)：233-242. " target="_blank">
[9]	陈锋，杨春和，白世伟. 盐岩储气库最佳采气速率数值模拟研究[J]. 岩土力学，2007，28(1)：57-62.(CHEN Feng，YANG Chunhe，BAI Shiwei. Investigation on optimized gas recovery velocity of natural gas storage in salt rock layer by numerical simulation[J]. Rock and Soil Mechanics，2007，28(1)：57-62.
[11]	戴永浩，陈卫忠，杨春和，等. 金坛盐岩储气库运营模型试验研究[J]. 岩土力学，2009，30(12)：3 574-3 580.(DAI Yonghao，CHEN Weizhong，YANG Chunhe，et al. A study of model test of Jintan rock salt gas storage¢s operation[J]. Rock and Soil Mechanics，2009，30(12)：3 574-3 580.(in Chinese))
[13]	任松，姜德义，刘新荣. 盐腔形成过程对覆岩影响的相似材料模拟试验研究[J]. 岩土工程学报，2008，30(8)：1 178-1 183.(REN Song，JIANG Deyi，LIU Xinrong. Model test on effect of salt rock cavern on overburden[J]. Chinese Journal of Geotechnical Engineering，2008，30(8)：1 178-1 183.(in Chinese)) " target="_blank">
[14]	陈安敏，顾金才，沈俊，等. 岩土工程多功能模拟试验装置的研制及应用[J]. 岩石力学与工程学报，2004，23(3)：372-378.(CHEN Anmin，GU Jincai，SHEN Jun，et al. Development and application of multifunctional apparatus for geotechnical engineering model tests[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(3)：372-378.(in Chinese))
[16]	李仲奎，卢达溶，中山元，等. 三维模型试验新技术及其在大型地下洞群研究的应用[J]. 岩石力学与工程学报，2003，22(9)：1 430- 1 436.(LI Zhongkui，LU Darong，ZHONG Shanyuan，et al. Development and application of new technology for 3D geomechanics model test of large underground caverns group[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(9)：1 430-1 436.(in Chinese)) " target="_blank">
[17]	周维垣，林鹏，杨强，等. 锦屏高边坡稳定三维地质力学模型试验研究[J]. 岩石力学与工程学报，2008，27(5)：894-901.(ZHOU Weiyuan，LIN Peng，YANG Qiang，et al. Experimental research on stability of Jinping high slope with three-dimensional geomechanical model[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(5)：894-901.(in Chinese))
[12]	刘江，杨春和，吴文，等. 盐岩短期强度和变形特性试验研究[J]. 岩石力学与工程学报，2006，25(增1)：3 104-3 109.(LIU Jiang，YANG Chunhe，WU Wen，et al. Experiment study on short-term strength and deformation properties of rock salts[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(Supp.1)：3 104-3 109.(in Chinese))
[7]	吴文，杨春和，侯正猛. 盐岩中能源(石油和天然气)地下储存力学问题研究现状及其发展[J]. 岩石力学与工程学报，2005，24(增2)：5 561-5 568.(WU Wen，YANG Chunhe，HOU Zhengmeng. Investigations on studied situations associated with mechanical aspects and development for underground storage of petroleum and natural gas in rock salt[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(Supp.2)：5 561-5 568. " target="_blank">
[10]	Cristescu N D. A general constitutive equation for transient and stationary creep of rock salt[J]. International Journal of Rock Mechanics and Mining Sciences，1993，30(2)：125-140. " target="_blank">
[15]	孙晓明，何满潮，刘成禹，等. 真三轴软岩非线性力学试验系统研制[J]. 岩石力学与工程学报，2005，24(16)：2 870-2 874.(SUN Xiaoming，HE Manchao，LIU Chengyu，et al. Development of nonlinear triaxial mechanical experiment system for soft rock specimen[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(16)：2 870-2 874.(in Chinese)) " target="_blank">
[3]	CHAN K S，BRODSKY N S，FOSSUM A F，et al. Damage induced nonassociated inelastic flow in rock salt[J]. International Journal of Plasticity，1994，10(6)：623-642. " target="_blank">
[6]	杨春和，李银平，陈峰. 层状盐岩力学理论与工程[M]. 北京：科学出版社，2009.(YANG Chunhe，LI Yinping，CHEN Feng. Mechanical theory and engineering for laminated salt rock[M]. Beijing：Science Press，2009.(in Chinese)) " target="_blank">
[5]	杨春和，梁卫国，魏东吼，等. 中国盐岩能源地下储存可行性研究[J]. 岩石力学与工程学报，2005，24(24)：4 409-4 417.(YANG Chunhe，LIANG Weiguo，WEI Donghou，et al. Investigation on possibility of energy storage in salt rock in China[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(24)：4 409-4 417.(in Chinese))
[8]	尹雪英，杨春和，陈剑文. 金坛盐矿老腔储气库长期稳定性分析数值模拟[J]. 岩土力学，2006，27(6)：869-874.(YIN Xueying，YANG Chunhe，CHEN Jianwen. Numerical simulation research on long-term stability of gas storage in Jintan salt mine[J]. Rock and Soil Mechanics，2006，27(6)：869-874.(in Chinese))
[18]	张强勇，刘德军，贾超，等. 盐岩油气储库介质地质力学模型相似材料的研制[J]. 岩土力学，2009，30(12)：3 581-3 586.(ZHANG Qiangyong，LIU Dejun，JIA Chao，et al. Development of geomechanical model similitude material for salt rock oil-gas storage medium[J]. Rock and Soil Mechanics，2009，30(12)：3 581-3 586.(in Chinese))