套管柱在钻井液-水泥浆耦合系统中振动特性的数值模拟
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摘要
利用ANSYS Workbench数值模拟软件分析了油井环空内套管柱共振响应特性,研究了振动波在套管柱-钻井液-水泥浆耦合系统中的传播规律。结果表明,套管柱共振频率随自身长度的增加而逐渐减小;套管柱底端振幅随频率、套管壁厚的增加而减小,随激振力的增大而增大;振动波衰减曲线分为快速衰减和缓速衰减两部分,振动波衰减速率随激振频率、套管壁厚的增加而逐渐减小,随激振力增加而加快;"强激振力+薄壁套管+低频"组合下共振效果明显,适合改善局部井段固井质量,而"弱激振力+厚壁套管+高频"组合振动波作用距离较远,适合提升长井段固井质量。
The resonance response characteristics of casing string in annulus of oil well were analyzed,and the propagation law of vibration wave in casing string-drilling fluid-cement slurry coupling system was studied using ANSYS Workbench numerical simulation software.The results show that the resonance frequency of casing string decreases with the increase of its length.The bottom end vibration amplitude of casing string decreases with the increase of frequency and casing wall thickness,and increases with the increase of exciting force.The attenuation curve of vibration wave is divided into two parts:fast attenuation and slow attenuation,the attenuation rate of vibration wave decreases with the increase of excitation frequency and casing wall thickness,and increases with the increase of excitation force.The combination of "strong excitation force + thin wall casing + low frequency" is of obvious resonance effect,and it is suitable for improving the cementing quality of local well section.The combination of "weak excitation force + thick wall casing + high frequency" has a long action distance,and it is suitable for improving the cementing quality of long well section.
The resonance response characteristics of casing string in annulus of oil well were analyzed,and the propagation law of vibration wave in casing string-drilling fluid-cement slurry coupling system was studied using ANSYS Workbench numerical simulation software.The results show that the resonance frequency of casing string decreases with the increase of its length.The bottom end vibration amplitude of casing string decreases with the increase of frequency and casing wall thickness,and increases with the increase of exciting force.The attenuation curve of vibration wave is divided into two parts:fast attenuation and slow attenuation,the attenuation rate of vibration wave decreases with the increase of excitation frequency and casing wall thickness,and increases with the increase of excitation force.The combination of "strong excitation force + thin wall casing + low frequency" is of obvious resonance effect,and it is suitable for improving the cementing quality of local well section.The combination of "weak excitation force + thick wall casing + high frequency" has a long action distance,and it is suitable for improving the cementing quality of long well section.
引文
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[2] 韩玉安,孙艳龙,王洪潮,等.国内外振动固井技术的发展现状[J].钻采工艺,2000,23(4):29-32.HAN Yu'an,SUN Yanlong,WANG Hongchao,et al.Developing status quo of vibration cementing technique both in China and abroad[J].Drilling & Production Technology,2000,23(4):29-32.
[3] HABERMAN J P,WOLHART S L.Reciprocating cement slurries after placement by applying pressure pulses in the annulus[C].SPE/IADC Drilling Conference,Amsterdam,Netherlands,4-6 March,1997.
[4] COOKE C E,GONZALEZ O J,BROUSSARD D J.Primary cementing improvement by casing vibration during cement curing time[J].SPE Production Engineering,1988,3(3):339-345.
[5] CHOW T W,MCINTIRE L V,KUNZE K R,et al.The rheological properties of cement slurries:effects of vibration,hydration conditions,and additives[J].SPE Production Engineering,1988,3(4):543-550.
[6] SKALLE P,SVEEN J,JUSTNES H.Vibration of oil well cement[C].Abu Dhabi Petroleum Conference,Abu Dhabi,18-20 May,1992.
[7] 巨全利,仝少凯.高产气井完井管柱纵向振动特性分析[J].钻采工艺,2014,37(2):79-82,119-120.JU Quanli,TONG Shaokai.Longitudinal vibration characteristics analysis of completion tubing string in high gas rate well[J].Drilling & Production Technology,2014,37(2):79-82,119-120.
[8] 樊洪海,王宇,张丽萍,等.高压气井完井管柱的流固耦合振动模型及其应用[J].石油学报,2011,32(3):547-550.FAN Honghai,WANG Yu,ZHANG Liping,et al.A fluid-solid coupled oscillation model for completion string and its application in high pressure gas well[J].Acta Petrolei Sinica,2011,32(3):547-550.
[9] 王宇,樊洪海,张丽萍,等.高压气井完井管柱系统的轴向流固耦合振动研究[J].振动与冲击,2011,30(6):202-207.WANG Yu,FAN Honghai,ZHANG Liping,et al.Analysis of fluid-structure interaction of completion string system in high pressure gas well[J].Journal of Vibration and Shock,2011,30(6):202-207.
[10] 张辉,柯珂,王磊.深水钻井作业管柱纵向振动载荷分析[J].石油机械,2014,42(4):38-42.ZHANG Hui,KE Ke,WANG Lei.Analysis of the longitudinal vibration load of deepwater drilling string[J].China Petroleum Machinery,2014,42(4):38-42.
[11] 尹宜勇,苏义脑,王兆会.电力振动器激振作用下的套管串振动特性[J].天然气工业,2017,37(5):62-67.YIN Yiyong,SU Yinao,WANG Zhaohui.Vibration characteristics of casing string under the exciting force of an electric vibrator[J].Natural Gas Industry,2017,37(5):62-67.
[12] 任锐,姬丽臻,高德利,等.套管-水泥浆系统流固耦合振动特性研究[J].应用力学学报,2017,34(4):610-614,809.REN Rui,JI Lizhen,GAO Deli,et al.Study for vibration characteristics of casing string in drilling fluid-slurry coupled system[J].Chinese Journal of Applied Mechanics,2017,34(4):610-614,809.
[13] 杨全枝,张晓斌,闫波涛,等.振动波在套管介质中的传播规律研究[J].石油矿场机械,2014,43(3):22-25.YANG Quanzhi,ZHANG Xiaobin,YAN Botao,et al.Study on vibration wave for transmitting law in the casing[J].Oil Field Equipment,2014,43(3):22-25.