PDC钻头井底水力参数理论与数值模拟研究
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摘要
为了精确计算模拟钻井过程井底水力参数,以Solidworks制图软件建立了三维模型,利用流体力学软件Fluent的k-ε模型对井底PDC钻头进行了三维流场数值模拟,从理论计算和数值模拟对喷嘴流量,冲击力和水功率两方面分析了PDC钻头水力参数,分析结果证明数值模拟能够较为精确地描述井底不同方位影响的水力参数,为优化PDC钻头水力参数与井底流场理论研究提供了重要依据,具有良好的参考价值。
In order to accurately calculate the hydraulic parameters of wellbore, the three-dimensional model was established by using Solidworks software, and the three-dimensional flow field of PDC bit was simulated by fluid model Fluent.The hydraulic parameters of the PDC bit were analyzed by theoretical calculation and numerical simulation. The results show that the numerical simulation can accurately describe the hydraulic parameters of the PDC bit, which can provide an important basis for optimization of the PDC bit hydraulic parameters and research on bottom hole flow field theory.
In order to accurately calculate the hydraulic parameters of wellbore, the three-dimensional model was established by using Solidworks software, and the three-dimensional flow field of PDC bit was simulated by fluid model Fluent.The hydraulic parameters of the PDC bit were analyzed by theoretical calculation and numerical simulation. The results show that the numerical simulation can accurately describe the hydraulic parameters of the PDC bit, which can provide an important basis for optimization of the PDC bit hydraulic parameters and research on bottom hole flow field theory.
引文
[1]陈庭根,管志川.钻井工程理论及技术[M].北京:石油大学出版社,2000.
[2]陈修平,邹德永,李东杰,娄尔标.PDC钻头防泥包性能数值模拟研究[J].石油钻探技术,2015,06:108-113.
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[9]李垒,金俊卿,陈坤,等.基于FLUENT软件分析旋风分离器的结构优化[J].天然气与石油,2014,03:71-75+13.
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[12]邹德永,梁尔国.硬地层PDC钻头设计的探讨[J].石油机械,2004,09:28-31+84-85.
[13]曹献平,旷曦域,刘英波,等.泡沫欠平衡钻地热井井筒多相流特性研究[J].天然气与石油,2013,04:48-50+9.
[14]任连城,梁政,钟功祥,等.基于CFD的水力旋流器流场模拟研究[J].石油机械,2005,11:22-24+53+5-6.
[15]林铁军,练章华,陈世春,等.气体钻井中气体携岩对钻杆的冲蚀机理研究[J].石油钻采工艺,2010,04:1-4.
[16]付加胜,李根生,史怀忠,等.水力脉冲空化射流钻井技术适应性分析[J].石油钻采工艺,2012,05:10-14.
[17]陈国庆.PDC钻头的发展趋势[J].石油机械,2003(S1):103-106.
[2]陈修平,邹德永,李东杰,娄尔标.PDC钻头防泥包性能数值模拟研究[J].石油钻探技术,2015,06:108-113.
[3]史怀忠,李根生,王学杰,等.水力脉冲空化射流欠平衡钻井提高钻速技术[J].石油勘探与开发,2010,01:111-115.
[4]马东军,李根生,牛继磊,等.多孔射流钻头破岩钻孔规律试验研究[J].流体机械,2015,03:1-5+16.
[5]况雨春,曾恒,周学军,等.PDC钻头水力结构优化设计研究[J].天然气工业,2006,04:60-61+67+155.
[6]祝效华,邓福成,贾彦杰,等.PDC钻头流场数值仿真与水力结构优化[J].石油机械,2010,08:1-4+104.
[7]李士斌,张立刚,荆玲,等.钻井参数优选新方法[J].石油钻探技术,2007,04:9-11.
[8]李子丰.钻柱涡动理论研究的必由之路——钻井液动力润滑学与钻柱动力学相结合[J].石油学报,2013,03:607-610.
[9]李垒,金俊卿,陈坤,等.基于FLUENT软件分析旋风分离器的结构优化[J].天然气与石油,2014,03:71-75+13.
[10]况雨春,杨云山,杨迎新,等.PDC钻头井底流场CFD仿真及二次开发[J].钻采工艺,2007,01:77-79+148.
[11]谢翠丽,杨爱玲,陈康民.非对称多喷嘴平底钻头井底三维流场数值模拟[J].石油学报,2002,06:77-80+1.
[12]邹德永,梁尔国.硬地层PDC钻头设计的探讨[J].石油机械,2004,09:28-31+84-85.
[13]曹献平,旷曦域,刘英波,等.泡沫欠平衡钻地热井井筒多相流特性研究[J].天然气与石油,2013,04:48-50+9.
[14]任连城,梁政,钟功祥,等.基于CFD的水力旋流器流场模拟研究[J].石油机械,2005,11:22-24+53+5-6.
[15]林铁军,练章华,陈世春,等.气体钻井中气体携岩对钻杆的冲蚀机理研究[J].石油钻采工艺,2010,04:1-4.
[16]付加胜,李根生,史怀忠,等.水力脉冲空化射流钻井技术适应性分析[J].石油钻采工艺,2012,05:10-14.
[17]陈国庆.PDC钻头的发展趋势[J].石油机械,2003(S1):103-106.