小口径可膨胀波纹管水力膨胀过程的数值模拟与试验研究
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摘要
为了确保可膨胀波纹管在120mm地质钻井中实现封隔漏失地层的功能,在合理设计8字形波纹管截面形状的基础上,采用有限元理论模拟了不同壁厚和材料的波纹管水力膨胀成形过程,并进行了室内水力膨胀试验。结果表明:波纹管壁厚越薄,膨胀效果越好,但壁厚必须满足抗外挤强度和抗内压强度条件;适用于120mm井眼的8字形波纹管,其材质应符合如下条件。屈强比≤0.6;延伸率≥25%;抗拉强度σb≥410 MPa;试制的波纹管膨胀后最小外径能够满足后续机械膨胀要求,最大膨胀压力为13.6MPa,符合钻探现场使用条件。研究结果为波纹管野外试验提供了技术支撑。
In order to ensure the sealing function of expandable liners in120mm boreholes,based on the proper design of an"8"shape section corrugated pipe,the hydrodynamic expansion forming process of the corrugated pipe with different wall thickness and materials is simulated by using the finite element theory,and the indoor hydrodynamic expansion test is carried out.Under the condition of satisfying the extrusion strength and internal pressure strength,the thinner the wall thickness of liners,the better the expansion effect;the"8"shape section liners suitable for 120 mm boreholes should meet the following conditions:yield ratio≤0.6,elongation≥25%,tensile strengthσb≥410MPa;the minimum diameter of the liners after expansion can meet the requirements of subsequent mechanical expansion,and the maximum expansion pressure is 13.6MPa,which meets the requirements of drilling site operation.This provides technical support for field test of the liners.
In order to ensure the sealing function of expandable liners in120mm boreholes,based on the proper design of an"8"shape section corrugated pipe,the hydrodynamic expansion forming process of the corrugated pipe with different wall thickness and materials is simulated by using the finite element theory,and the indoor hydrodynamic expansion test is carried out.Under the condition of satisfying the extrusion strength and internal pressure strength,the thinner the wall thickness of liners,the better the expansion effect;the"8"shape section liners suitable for 120 mm boreholes should meet the following conditions:yield ratio≤0.6,elongation≥25%,tensile strengthσb≥410MPa;the minimum diameter of the liners after expansion can meet the requirements of subsequent mechanical expansion,and the maximum expansion pressure is 13.6MPa,which meets the requirements of drilling site operation.This provides technical support for field test of the liners.
引文
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[15]秦大同,谢里阳.现代机械设计手册(第1卷)[M].北京:化学工业出版社,2011.QIN Datong,XIE Liyang.Modern mechanical design manual(Volume 1)[M].Beijing:Chemical Industry Press,2011.
[2]刘鹏,夏柏如,陶兴华,等.膨胀波纹管在大牛地气田定向井段的应用[J].石油钻探技术,2017,45(2):61-67.LIU Peng,XIA Bairu,TAO Xinghua,et al.The application of lid expandable liners in directional w ell sections of the Daniudi gas field[J].Petroleum Drilling Techniques,2017,45(2):61-67.
[3]杨顺辉,黄永洪,陶兴华,等.可膨胀波纹管技术在韦15-19井的应用[J].石油钻探技术,2007,35(3):55-57.YANG Shunhui,HUANG Yonghong,TAO Xinghua,et al.Application of expandable bellows technique in well Wei 15-19[J].Petroleum Drilling Techniques,2007,35(3):55-57.
[4]王治平,卓云,廖富国,等.波纹管堵漏技术在黄龙004-X1井的应用[J].天然气工业,2008,28(5):67-68.WANG Zhiping,ZHUO Yun,LIAO Fuguo,et al.Application of bellow pipe for lost circulation control in well Huanglong 004-X1[J].Natural Gas Industry,2008,28(5):67-68.
[5]于好善,王成彪,杨甘生,等.膨胀套管护壁技术研究现状及其工作原理[J].探矿工程(岩土钻掘工程),2011,38(3):1-4.YU Haoshan,WANG Chengbiao,YANG Gansheng,et al.Study situation of expandable casing technology and the working principle[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),2011,38(3):1-4.
[6] Dupal K K,Campo D B,Lofton J E,et al.Solid expandable tubular technology——A year of case histories in the drilling environment[J].SPE IADC Drilling Conference,2011:1-16.
[7]吴明畏,张伟,刘进余,等.可膨胀波纹管堵漏技术应用[J].石油矿场机械,2013,(11):72-75.WU Mingwei,ZHANG Wei,LIU Jinyu,et al.Expandable bellows plugging technology applied research[J].Oil Field Equipment,2011,38(3):1-4.
[8]张德龙,翁炜,黄玉文,等.波纹管堵漏技术及其在地质钻探领域的应用研究[J].探矿工程(岩土钻掘工程),2012,39(5):28-30.ZHANG Delong,WENG Wei,HUANG Yuwen,et al.Research on bellows sealing technology and the application in geological drilling field[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),2012,39(5):28-30.
[9]张化民,于好善,宋刚.地质勘探用膨胀波纹管截面设计与选择[J].探矿工程(岩土钻掘工程),2015,42(8):55-59.ZHANG Huamin,YU Haoshan,SONG Gang.Design and selection of cross section of expandable convoluted tube for geological exploration[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),2015,42(8):55-59.
[10]孟令博,张康生,刘文科,等.楔横轧小断面收缩率轴类件的椭圆度研究[J].北京科技大学学报,2012,34(5):571-575.MENG Lingbo,ZHANG Kangsheng,LIU Wenke,et al.Ovality study of shafts with light area reduction by cross wedge rolling[J].Journal of University of Science and Technology Beijing,2012,34(5):571-575.
[11]陶兴华,朱宏武,张宏,等.波纹管成型及膨胀过程力学性能分析[J].石油机械,2011,39(3):12-15.TAO Xinghua,ZHU Hongwu,ZHANG Hong,et al.An analysis of the mechanical properties of the forming and expansion process of the bellows[J].China Petroleum Machinery,2011,39(3):12-15.
[12]陈晓君,宋刚,孟庆鸿,等.小口径勘探用可膨胀波纹管ANSYS模拟与实验分析[J].探矿工程(岩土钻掘工程),2014,42(11):37-40.CHEN Xiaojun,SONG Gang,MENG Qinghong,et al.Ansys simulation of expandable convoluted tubing for small diameter bore prospecting and experimental analysis[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),2014,42(11):37-40.
[13]尹飞,高宝奎,张进,等.油井堵漏可膨胀波纹管的有限元分析[J].石油机械,2012,(5):66-69.YIN Fei,GAO Baokui,ZHANG Jin,et al.Finite element analysis of the expandable bellows for oil well plugging[J].China Petroleum Machinery,2012,(5):66-69.
[14]刘鹏,夏柏如,陶兴华,等.膨胀波纹管焊缝缺陷的检测及影响评价分析[J].科学技术与工程,2016,16(32):22-27.LIU Peng,XIA Bairu,TAO Xinghua,et,al.Weld defects detection and weld's performance evaluation of solid expandable profile liner technology[J].Science Technology and Engineering,2016,16(32):22-27.
[15]秦大同,谢里阳.现代机械设计手册(第1卷)[M].北京:化学工业出版社,2011.QIN Datong,XIE Liyang.Modern mechanical design manual(Volume 1)[M].Beijing:Chemical Industry Press,2011.