高速旋转冲击钻井破岩数值模拟及现场实验
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摘要
为提高深井地层破岩效率,提出螺杆高速旋转条件下配合井下冲击破岩工具的高速旋冲钻井新模式,通过数值模拟研究单个PDC齿在不同工况下岩石的动态破碎过程,并进行高速旋冲钻井现场试验。结果表明:在旋转冲击钻井中,钻头转速增加,钻头吃入地层深度减少,前进阻力增大且波动更为剧烈,岩石破碎效率提高;增大钻头上的冲击力,钻头吃入地层的深度增加,岩石破碎效率提高;增大钻头上冲击力频率,岩石破碎效率提高;螺杆钻具结合自激振荡式高速旋转冲击钻井工具形成的自激振荡式高速旋转冲击钻井技术提高了钻头转速,相对于单独螺杆钻进,提高了切削齿的吃深。
In order to improve the rock-breaking efficiency of deep well,a new high-speed rotary impact drilling assembly mode combine with high-speed rotating PDM and percussion drilling tool was proposed. The dynamic fracture process of rock under different working conditions of single PDC tooth was studied by numerical simulation and the filed test was carried out.The results show that during rotary impact drilling,the depth of the PDC eats into the rock decreases as rotary speed increases,the forward resistance increases. The fluctuation is more severe,and the rock breaking efficiency increases. Also the bit rotation speedis improved by the self-oscillation high-speed rotary drilling technology,which is combined with PDM and selfoscillation rotary drilling tool. And the eating depth of the PDC teeth is improved compared to the single PDM drilling.
In order to improve the rock-breaking efficiency of deep well,a new high-speed rotary impact drilling assembly mode combine with high-speed rotating PDM and percussion drilling tool was proposed. The dynamic fracture process of rock under different working conditions of single PDC tooth was studied by numerical simulation and the filed test was carried out.The results show that during rotary impact drilling,the depth of the PDC eats into the rock decreases as rotary speed increases,the forward resistance increases. The fluctuation is more severe,and the rock breaking efficiency increases. Also the bit rotation speedis improved by the self-oscillation high-speed rotary drilling technology,which is combined with PDM and selfoscillation rotary drilling tool. And the eating depth of the PDC teeth is improved compared to the single PDM drilling.
引文
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[9]李耀,李和平,巫绪涛.混凝土HJC动态本构模型的研究[J].合肥工业大学学报(自然科学版),2009,32(8):1244-1248.LI Yao,LI Heping,WU Xutao. Research on the HJC dynamic constitutive model for concrete[J]. Journal of Hefei University of Technology,2009,32(8):1244-1248.
[10]马清明,王瑞和.PDC切削齿破岩受力的试验研究[J].中国石油大学学报(自然科学版),2006,30(2):45-47.MA Qingming,WANG Ruihe. Experimental study on force of PDC cutter breaking rock[J]. Journal of China University of Petroleum(Edition of Natural Science),2006,30(2):45-47.
[11]邹德永,王瑞和.刀翼式PDC钻头的侧向力平衡设计[J].石油大学学报(自然科学版),2005,29(2):42-44.ZOU Deyong,WANG Ruihe. Lateral force balancing design of blade PDC bits[J]. Journal of the University of Petroleum,China(Edition of Natural Science),2005,29(2):42-44.
[2]刘天科.自激振荡式旋转冲击钻井工具在胜利油田的应用[J].石油钻采工艺,2012,34(4):54-56.LIU Tianke. Application of self-oscillating rotary percussion drilling tools in Shengli Oilfield[J]. Oil Drilling&Production Technology,2012,34(4):54-56.
[3]鄢松意,陶瑞东,陈建华,等.自激振荡式旋转冲击钻井工具在大港板深19-64井的应用[J].石油钻采工艺,2012,34(6):114-116.YAN Songyi,TAO Ruidong,CHEN Jianhua,et al.Application of self-exicited oscillation drilling tools on well Banshen19-64 in Dagang Oilfield[J]. Oil Drilling&Production Technology,2012,34(6):114-116.
[4]许京国,尤军,陶瑞东,等.自激振荡式旋转冲击钻井工具在大港油田的应用[J].钻采工艺,2013,36(3):124-125,128.XU Jingguo,YOU Jun,TAO Ruidong,et al. Application of self-exicited oscillation drilling tools in Dagang Oilfield[J]. Oil Drilling&Production Technology,2013,36(3):124-125,128.
[5]雷鹏,倪红坚,王瑞和,等.自激振荡式旋冲工具在深井超深井中的试验应用[J].石油钻探技术,2013,41(6):40-43.LEI Peng,NI Hongjian,WANG Ruihe,et al. Field test of self-excited vibration rotary percussion drilling tool in deep and ultra-deep wells[J]. Petroleum Drilling Techniques,2013,41(6):40-43.
[6] SAKSALA T,FOURMEAU M,KANE P A,et al. 3D finite elements modelling of percussive rock drilling:estimation of rate of penetration based on multiple impact simulations with a commercial drill bit[J]. Computers&Geotechnics,2018,99:55-63.
[7] KONG X,FANG Q,WU H,et al. Numerical predictions of cratering and scabbing in concrete slabs subjected to projectile impact using a modified version of HJC material model[J]. International Journal of Impact Engineering,2016,95:61-71.
[8]巫绪涛,李耀,李和平.混凝土HJC本构模型参数的研究[J].应用力学学报,2010,27(2):340-344,443.WU Xutao,LI Yao,LI Heping. Research on the material constants of the HJC dynamic constitutive model for concrete[J]. Chinese Journal of Applied Mechanics,2010,27(2):340-344,443.
[9]李耀,李和平,巫绪涛.混凝土HJC动态本构模型的研究[J].合肥工业大学学报(自然科学版),2009,32(8):1244-1248.LI Yao,LI Heping,WU Xutao. Research on the HJC dynamic constitutive model for concrete[J]. Journal of Hefei University of Technology,2009,32(8):1244-1248.
[10]马清明,王瑞和.PDC切削齿破岩受力的试验研究[J].中国石油大学学报(自然科学版),2006,30(2):45-47.MA Qingming,WANG Ruihe. Experimental study on force of PDC cutter breaking rock[J]. Journal of China University of Petroleum(Edition of Natural Science),2006,30(2):45-47.
[11]邹德永,王瑞和.刀翼式PDC钻头的侧向力平衡设计[J].石油大学学报(自然科学版),2005,29(2):42-44.ZOU Deyong,WANG Ruihe. Lateral force balancing design of blade PDC bits[J]. Journal of the University of Petroleum,China(Edition of Natural Science),2005,29(2):42-44.
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