移动式振动固井装置的研制与现场试验
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摘要
针对俄罗斯移动式振动器启动困难和不能长时间工作的缺陷,通过研制井下振动器和简化压力平衡机构,根据力学分析优化振动器偏心块的结构,并配套地面电控系统,形成了适用φ139.7mm套管的移动式振动固井装置。地面试验表明,移动式振动固井装置适用于井斜角不大于50°的井段,启动容易,可以长时间工作。在胜利油田营13-斜161井的现场试验表明,采用移动式振动固井装置进行振动固井井段的固井质量显著提高,与未采用振动固井的邻井相同井段相比,第一界面优质率和第二界面合格率分别平均提高17.5和45.0百分点。研究表明,自主研发的移动式振动固井装置克服了俄罗斯移动式振动器的缺陷,适用于井斜角不大于50°的井段,能够有效提升第一、二界面的胶结质量。
In order to overcome the problems of Russian mobile vibrators which include starting difficulties and limited running time,a set of mobile vibratory cementing devices suitable for φ 139.7 mm casing was formed by optimizing the structures of eccentric blocks of vibrators based on mechanical analysis and matching surface electronic control system.They were formed after the development of downhole vibrators and simplification of pressure balance mechanism.Surface tests indicated that the mobile vibratory cementing device applicable to the well section with deviation angle less than 50° started easily and might work for a long time.Field tests indicated that the cementing quality of vibration cementing intervals were significantly improved by using the mobile vibratory cementing device for test wells.Compared with the same intervals in the adjacent wells without using vibration cementing,the high quality rate of the first interface and qualification rate of the second interface were improved by 17.5 and 45.0 per cent respectively.The research showed that self-developed mobile vibratory cementing device could overcome the defects of Russian mobile vibrators,and could be suitable for a domestic casing program and thus effectively improve the cementation quality of the first and second interfaces
In order to overcome the problems of Russian mobile vibrators which include starting difficulties and limited running time,a set of mobile vibratory cementing devices suitable for φ 139.7 mm casing was formed by optimizing the structures of eccentric blocks of vibrators based on mechanical analysis and matching surface electronic control system.They were formed after the development of downhole vibrators and simplification of pressure balance mechanism.Surface tests indicated that the mobile vibratory cementing device applicable to the well section with deviation angle less than 50° started easily and might work for a long time.Field tests indicated that the cementing quality of vibration cementing intervals were significantly improved by using the mobile vibratory cementing device for test wells.Compared with the same intervals in the adjacent wells without using vibration cementing,the high quality rate of the first interface and qualification rate of the second interface were improved by 17.5 and 45.0 per cent respectively.The research showed that self-developed mobile vibratory cementing device could overcome the defects of Russian mobile vibrators,and could be suitable for a domestic casing program and thus effectively improve the cementation quality of the first and second interfaces
引文
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[10]张大川,刁胜贤,李玉海.综合固井技术在胜利油田探井中的应用[J].石油钻采工艺,2004,26(4):24-26.ZHANG Dachuan,DIAO Shengxian,LI Yuhai.Application of comprehensive cementing technology in exploratory wells in Shengli Oilfield[J].Oil Drilling&Production Technology,2004,26(4):24-26.
[11]张子强,常焱.振动偏心轮结构设计及其有限元分析[J].江南大学学报(自然科学版),2011,10(5):573-577.ZHANG Ziqiang,CHANG Yan.Structure design of vibration eccentric and its finite element analysis[J].Journal of Southern Yangtze University(Natural Science Edition),2011,10(5):573-577.
[12]蒋章方,刘袁平.电机内装插入式混凝土振动器机械振动性能参数计算[J].建设机械技术与管理,2010,23(1):109-115.JIANG Zhangfang,LIU Yuanping.Calculation of mechanical vibration parameters of inbuilt motor concrete vibrators[J].Construction Machinery Technology&Management,2010,23(1):109-115.
[2]DUSTERHOFT D,WILSON G,NEWMAN K.Field study on the use of cement pulsation to control gas migration[R].SPE75689,2002.
[3]NEWMAN K,WOJTANOWICZ A K,GAHAN,B C.Cement pulsation improves gas well cementing[J].World Oil,2001,222(7):89-94.
[4]刘小利,夏宏南,王小建,等.水力脉冲振动技术提高固井质量的研究与应用[J].钻采工艺,2007,30(2):20-21.LIU Xiaoli,XIA Hongnan,WANG Xiaojian,et al.Research and application of water power vibratory impluse technique in improving cementing quality[J].Drilling&Production Technology,2007,30(2):20-21.
[5]李博.水力振荡器的研制与现场试验[J].石油钻探技术,2014,42(1):111-113.LI Bo.Development and pilot test of hydro-oscillator[J].Petroleum Drilling Techniques,2014,42(1):111-113.
[6]RANKIN R E,RANKIN K T.Apparatus and method for vibrating a casing string during cementing:US 5152342[P].1992-10-06.
[7]WEBB E,ROGERS H,SCHULTZ R.Methods for introducing pulsing to cementing operations:WO/2009/081088A2[P].2009-07-02.
[8]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):27-30.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):27-30.
[9]李玉海,赵立新,王军荣.振动固井技术综述[J].石油钻采工艺,1994,16(6):40-42.LI Yuhai,ZHAO Lixin,WANG Junrong.Overview of vibration cementing technology[J].Oil Drilling&Production Technology,1994,16(6):40-42.
[10]张大川,刁胜贤,李玉海.综合固井技术在胜利油田探井中的应用[J].石油钻采工艺,2004,26(4):24-26.ZHANG Dachuan,DIAO Shengxian,LI Yuhai.Application of comprehensive cementing technology in exploratory wells in Shengli Oilfield[J].Oil Drilling&Production Technology,2004,26(4):24-26.
[11]张子强,常焱.振动偏心轮结构设计及其有限元分析[J].江南大学学报(自然科学版),2011,10(5):573-577.ZHANG Ziqiang,CHANG Yan.Structure design of vibration eccentric and its finite element analysis[J].Journal of Southern Yangtze University(Natural Science Edition),2011,10(5):573-577.
[12]蒋章方,刘袁平.电机内装插入式混凝土振动器机械振动性能参数计算[J].建设机械技术与管理,2010,23(1):109-115.JIANG Zhangfang,LIU Yuanping.Calculation of mechanical vibration parameters of inbuilt motor concrete vibrators[J].Construction Machinery Technology&Management,2010,23(1):109-115.