Experimental Study on the Integrity of Low-Density Cement Sheath with Hollow Microsphere

LI Zaoyuan; QI Ling; LIU Rui; GU Tao; SUN Jinfei

doi:10.11911/syztjs.201703008

Volume 45 Issue 3

May 2017

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Petroleum Drilling Techniques > 2017 > 45(3): 42-47. > DOI: 10.11911/syztjs.201703008

LI Zaoyuan, QI Ling, LIU Rui, GU Tao, SUN Jinfei. Experimental Study on the Integrity of Low-Density Cement Sheath with Hollow Microsphere[J]. Petroleum Drilling Techniques, 2017, 45(3): 42-47. DOI: 10.11911/syztjs.201703008

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Experimental Study on the Integrity of Low-Density Cement Sheath with Hollow Microsphere

1.
State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation(Southwest Petroleum University), Chengdu, Sichuan, 610500, China;
2.
Kuqa Oil & Gas Development Section, PetroChina Tarim Oilfield Company, Korla, Xinjiang, 841000, China

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Received Date: October 24, 2016
Revised Date: March 11, 2017

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Abstract

Abstract

In order to improve the long-term sealing capacity of low-density cement sheath with hollow microsphere,the experimental studies for cement sheath integrity under the working conditions of cyclic loading and high internal pressures have been conducted,and analyzed the damages and deformation law of set cement by using the method of cyclic axial loading and unloading in tri-axial rock mechanics system. On the basis of experiment,the isolating integrity of cement sheath under high internal pressure was evaluated by thick-wall cylinder theory. Experimental results showed that both cyclic loading and high internal pressures could lead to the losses in isolating integrity of low-density cement sheath with hollow microsphere. Therefore,the dispersible fiber FK was optimized to enhance the toughness of the low-density cement sheath with hollow microsphere. The modified cementing slurry has good performances,which can meet the requirements of cementing operation. The tensile strength,coordinated deformation capacity and loading capacity of the modified set cement were all improved,while the elasticity modulus was reduced. The results indicated that dispersible fiber FK had a good effect on toughness increment,which may provide the theoretical basis and optimization method to enhance the integrity of the low-density cement sheath.
- hollow microsphere,
- low density cement slurry,
- cement sheath,
- integrity,
- cyclic loading,
- inner pressure,
- mechanical property

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[1]	黎泽寒,李早元,刘俊峰,等.低压易漏深井大温差低密度水泥浆体系[J].石油钻采工艺,2012,34(4):43-46. LI Zehan,LI Zaoyuan,LIU Junfeng,et al.Temperature stable low density slurry for low pressure loss deep wells[J].Oil Drilling Production Technology,2012,34(4):43-46.
[2]	范伟华,符自明,曹权,等.相国寺储气库低压易漏失井固井技术[J].断块油气田,2014,21(5):675-677. FAN Weihua,FU Ziming,CAO Quan,et al.Cementing technology of low pressure and easy leaking well in Xiangguosi underground gas storage[J].Fault-Block Oil Gas Field,2014,21(5):675-677.
[3]	刘学鹏,张明昌,冯明慧,等.复合空心微珠低密度水泥浆的研究与应用[J].石油钻采工艺,2014,36(6):39-41. LIU Xuepeng,ZHANG Mingchang,FENG Minghui,et al.Research and application of composite hollow microbead low density cement slurry[J].Oil Drilling Production Technology,2014,36(6):39-41.
[4]	罗杨,陈大钧,许桂莉,等.高强度超低密度水泥浆体系实验研究[J].石油钻探技术,2009,37(5):66-71. LUO Yang,CHEN Dajun,XU Guili,et al.Lab experiment on high-intensity ultra-low-density cement slurry[J].Petroleum Drilling Techniques,2009,37(5):66-71.
[5]	周剑,高德伟,严海兵.早强低密度水泥浆体系提高低压易漏井固井质量[J].天然气工业,2012,32(4):72-74. ZHOU Jian,GAO Dewei,YAN Haibing,et al.A early-strength and low-density slurry system used to improve cementing in low-pressure thief zones[J].Natural Gas Industry,2012,32(4):72-74.
[6]	步玉环,宋文宇,何英君,等.低密度水泥浆固井质量评价方法探讨[J].石油钻探技术,2015,43(5):49-55. BU Yuhuan,SONG Wenyu,HE Yingjun,et al.Discussion of a method for evaluatingcementing quality with low-density cement slurries[J].Petroleum Drilling Techniques,2015,43(5):49-55.
[7]	吴健.固井水泥环密封完整性研究[D].武汉:长江大学,2014. WU Jian.Research on the sheath seal and integrity[D].Wuhan:Yangtze University,2014.
[8]	张景富,吕英渤,刘硕琼,等.水泥环力学参数与载荷间的适应性[J].石油钻采工艺,2016,38(5):594-600. ZHANG Jingfu,LYU Yingbo,LIU Shuoqiong,et al.Adaptability among loads and mechanical parameters of cement sheath[J].Oil Drilling Production Technology,2016,38(5):594-600.
[9]	李进,龚宁,李早元,等.射孔完井工况下固井水泥环破坏研究进展[J].钻井液与完井液,2016,33(6):10-16. LI Jin,GONG Ning,LI Zaoyuan,et al.Progress in studying cement sheath failure in perforated wells[J].Drilling Fluid Completion Fluid,2016,33(6):10-16.
[10]	赵效锋,管志川,廖华林,等.交变压力下固井界面微间隙产生规律研究[J].石油机械,2015,43(4):22-27. ZHAO Xiaofeng,GUAN Zhichuan,LIAO Hualin,et al.Study on cementing interface micro-annulus generation rules under alternating casing pressure[J].China Petroleum Machinery,2015,43(4):22-27.
[11]	刘洋,严海兵,余鑫,等.井内压力变化对水泥环密封完整性的影响及对策[J].天然气工业,2014,34(4):95-98. LIU Yang,YAN Haibing,YU Xin,et al.Negative impacts of borehole pressure change on cement sheath sealing integrity and countermeasures[J].Natural Gas Industry,2014,34(4):95-98.
[12]	初纬,沈吉云,杨云飞,等.连续变化内压下套管-水泥环-围岩组合体微环隙计算[J].石油勘探与开发, 2015,42(3):379-385. CHU Wei,SHEN Jiyun,YANG Yunfei,et al.Calculation of micro-annulus size in casing-cement sheath-formation system under continuous internal casing pressure change[J].Petroleum Exploration and Development,2015,42(3):379-385.
[13]	关博文.交变荷载与硫酸盐腐蚀作用下水泥混凝土疲劳损伤机制[D].西安:长安大学,2012. GUAN Bowen.Study on the fatigue damage of cement concrete subjected to sulfate corrosion and alternating stresses[D].Xi’an:Chang’an University,2012.
[14]	刘仍光,张林海,陶谦,等.循环应力作用下水泥环密封性实验研究[J].钻井液与完井液,2016,33(4):74-78. LIU Rengguang,ZHANG Linhai,TAO Qian,et al.Experimental study on airtightness of cement sheath under alternating stress[J].Drilling Fluid Completion Fluid,2016,33(4):74-78.
[15]	刘达列.疲劳破坏的连续性损伤力学模型的研究[D].杭州:浙江大学,2002. LIU Dalie.The research of fatigue damage about continuum damage mechanics model[D].Hangzhou:Zhejiang University,2002.
[16]	余寿文.损伤力学[M].北京:清华大学出版社,1997:23-137. YU Shouwen.Damagemechanics[M].Beijing:Tsinghua University Press,1997:23-137.
[17]	张钦.水平井多级压裂环空窜流机理研究[D].大庆:东北石油大学,2014. ZHANG Qin.Research on the mechanism of annular channeling during horizontal multi-stage fracturing[D].Daqing:Northeast Petroleum University,2014.
[18]	李勇,陈瑶,靳建洲,等.页岩气井体积压裂条件下的水泥环界面裂缝扩展[J].石油学报,2017,38(1):105-111. LI Yong,CHEN Yao,JIN Jianzhou,et al.Cement ring interface crack propagation under volume fracturing in shale gas well[J].Acta Petrolei Sinica,2017,38(1):105-111.
[19]	NABIPOUR A,JOODI B,SARMADIVALEH M.Finite element simulation of downhole stresses in deep gas wells cements[R].SPE 132156,2010.
[20]	汪晓静,孔祥明,曾敏,等.新型苯丙胶乳水泥浆体系的室内研究[J].石油钻探技术,2014,42(2):80-84. WANG Xiaojing,KONG Xiangming,ZENG Min,et al.Laboratory research on a new styrene acrylic latex cement slurry system[J].Petroleum Drilling Techniques,2014,42(2):80-84.
[21]	KAY A M,JAY P D,PAUL J.Resin-based cement alternatives for deepwater well construction[R].SPE 155613,2012.
[22]	张文潇.纤维素纤维混凝土耐久性、高温抗爆裂及徐变特性[D].南京:东南大学,2015. ZHANG Wenxiao.Durability and resistance to spalling after high temperature and creep characteristics of cellulose fiber reinforced concrete[D].Nanjing:Southeast University,2015.

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