Research on The Toughening Mechanism of Fiber/Whisker on Oil Well Cement Stone

doi:10.11885/j.issn.16745086.2015.01.16.03

Abstract

Abstract: Information such as the microstructure of cement stone cross section can be accurately, speedily and intuitively, provided by SEM when used in the research of cement-based materials. Oil well cement stone easily caused the micro-fracture and micro-annulus under the complex downhole stressed to decrease the sealing integrity between the cement sheath and the casing or formation. Whisker,fiber,and hybrid fiber are incorporated to strengthen and toughen the cement stone. Microstructures and micromechanical behaviors are investigated using scanning electron microscopy. The experimental results show that the toughness of the hybrid fiber cement stone was better than that of the single fiber cement stone. The toughening mechanisms of cement stone contains bridging, crack deflection and fiber pull out and the improvement could be correlated to energy-dissipating processes at the crack tips for different size and structure between the whisker and fibers and different load phases.

Key words: oil well cement stone, SEM, fiber, toughening, mechanism, microstructure

CLC Number:

TE348

LI Ming, DENG Shuang, YAN Ping, JIN Jianzhou, YU Yongjin. Research on The Toughening Mechanism of Fiber/Whisker on Oil Well Cement Stone[J]. 西南石油大学学报(自然科学版), 2016, 38(5): 151-156.

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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.11885/j.issn.16745086.2015.01.16.03

http://journal15.magtechjournal.com/Jwk_xnzk/EN/Y2016/V38/I5/151

References

[1] 李明,刘萌,杨元意,等. 碱处理改性竹纤维增韧固井水泥石研究[J]. 功能材料, 2014, 45(13):13087-13091. LI Ming, LIU Meng, YANG Yuanyi, et al. Research of alkaline treatment of bamboo fiber toughened cement[J]. Journal of Functional Materials, 2014, 45(13):13087-13091.
[2] 李明,刘萌,杨元意,等. 碳酸钙晶须与碳纤维混杂增强油井水泥石力学性能[J]. 石油勘探与开发, 2015, 42(1):94-100. LI Ming, LIU Meng, YANG Yuanyi, et al. Mechanical properties of oil well cement stone reinforced with hybrid fiber of calcium carbonate whisker and carbon fiber[J]. Petroleum Exploration & Development, 2015, 42(1):94-100.
[3] 姚晓,樊松林,吴叶成,等. 油井水泥纤维增韧材料的研究与应用[J]. 西安石油大学学报(自然科学版), 2005, 20(2):39-42. YAO Xiao, FAN Songlin, WU Yecheng, et al. Study and application of toughness-enhancing fiber material for the cement used for well cementing[J]. Journal of Xi'an Shi you University(Natural Science Edition), 2005, 20(2):39-42.
[4] 李明,刘萌,杨雨佳,等. 碳酸钙晶须改善固井水泥浆性能研究[J]. 硅酸盐通报, 2014, 33(12):3145-3150. LI Ming, LIU Meng, YANG Yujia, et al. Calcium carbonate whisker improved the performance of oil and gas well cement[J]. Bulletin of the Chinese Ceramic Society, 2014, 33(12):3145-3150.
[5] LI M, YANG Y, LIU M, et al. Hybrid effect of calcium carbonate whisker and carbon fiber on the mechanical properties and microstructure of oil well cement[J]. Construction & Building Materials, 2015, 93(1):104-111.
[6] 李明,杨雨佳,郭小阳. 碳纤维增强油井水泥石的力学性能[J]. 复合材料学报, 2015, 32(3):782-788. LI Ming, YANG Yujia, GUO Xiaoyang. Mechanical properties of carbon fiber reinforced oil well cement composites[J]. AMCS, 2015, 32(3):782-788.
[7] BAEZA F J, GALAO O, ZORNOZA E, et al. Effect of aspect ratio on strain sensing capacity of carbon fiber reinforced cement composites[J]. Materials & Design, 2013, 51:1085-1094.
[8] 张博明,李嘉,李煦. 混杂纤维复合材料最优纤维混杂比例及其应用研究进展[J]. 材料工程, 2014(7):107-112. ZHANG Boming, LI Jia, LI Xu. Optimum mix ratio of hybrid fiber reinforced polymer composites and their researching progress[J]. Journal of Materials Engineering, 2014(7):107-112.
[9] AHR W M. Pore characteristics as surrogates for permeability in mapping reservoir flow units vaccum SanAndres field,Lea Country,New Mexico[J]. AAPG Bulletin, 1991, 75(3):532-551.
[10] 邹春艳,罗蓉,李子荣,等. 电镜扫描在碎屑岩储层粘土矿物研究中的应用[J]. 天然气勘探与开发, 2005, 28(4):4-8. ZHOU Chunyan, LUO Rong, LI Zirong, et al. Application of SEM in clay mineral study for clastic reservoirs[J]. Natural Gas Exploration and Development,2005,28(4):4-8.
[11] 沈光政,王殿斌,张民志,等. 海拉尔盆地柯绿泥石和钠板石的组合特征及其石油地质意义[J]. 电子显微学报, 2006, 27(增):311-311. SHEN Guangzheng, WANG Dianbin, ZHANG Minzhi, et al. The combination feature and significance of sodium chlorite and slate in Hailaer Basin[J]. Journal of Chinese Electron Microscopy Society, 2006, 27(S):311-311.
[12] 袁彩萍,姚光庆. 焉耆盆地宝浪油田储层胶结物的SEM研究[J]. 电子显微学报, 2001, 20(4):381-382. YUAN Caiping, YAO Guangqing. The SEM research of reservoir cement at Baolang oil field in Yanqi Basin[J]. Journal of Chinese Electron Microscopy Society, 2001, 20(4):381-382.
[13] 中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会. GB/T 19139-2012油井水泥试验方法[S]. 北京:中国标准出版社, 2013.
[14] 盛克平,丁听生,王虎,等. 环境扫描电子显微镜的特性及应用概况[J]. 理化检验物理分册, 2003, 39(9):470-473. SHENG Keping, DING Tingsheng, WANG Hu, et al. The Specific capacity and applications of environmental scanning electron microscopy[J]. PTCA(Part A:Physical Testing) 2003, 39(9):470-473.
[15] 蒋昌忠. 一种新型分析扫描电子显微镜[J]. 武汉大学学报(自然科学版), 2000, 46(1):91-94. JIANG Changzhong. A new type of analytical scanning electron microscope[J]. Wuhan University Journal(Natural Science Edition), 2000, 46(1):91-94.