H级抽油杆设计新方法及应用
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摘要
H级抽油杆除了比常规类型的抽油杆强度高出一个级别外,在许用应力的计算时也有较大区别。国内由于缺乏H级抽油杆许用应力相关值,在设计时借鉴D级抽油杆,这就导致设计参数过于保守,未发挥H级抽油杆的优势。针对这种情况,采用电液伺服SHT4106万能试验机,通过室内拉伸试验,得到抗拉强度与屈服强度的比值,建立了H级抽油杆修正API最大许用应力计算新方法。按照抽油杆标准SY/T5029—2013室内疲劳试验要求,测试应力比为0.1下的疲劳极限,得出了H级抽油杆奥金格方法折算应力对应值。与D级杆相比,H级抽油杆的应用具有降低抽油杆直径,降低抽油机型号的优势。
In addition to its higher class strength than the conventional sucker rod,the H-class sucker rod is also different from the conventional one in the calculation of allowable stress.Due to domestic lack of reference value of allowable stress of H-class sucker rod,the D-class sucker rod is often used in the design,which leads to the design parameters to be too conservative,and the advantage of H-class sucker rod is not given.In view of this situation,the electro-hydraulic servo universal testing machine SHT4106 is used in laboratory tensile test to obtain the ratio of tensile strength and yield strength.And then a new method to calculate the maximum allowable stress of H-class sucker rod is established.According to the fatigue experiment requirements of the standard"SY/T5029—2013 sucker rod"to test the fatigue limit when the stress ratio is 0.1,then the Oding method equivalent stress corresponding value of H-class sucker rod is obtained.Compared with D-class rod,the application of H-class sucker rod has the advantage of lower rod diameter and pumping unit model.
In addition to its higher class strength than the conventional sucker rod,the H-class sucker rod is also different from the conventional one in the calculation of allowable stress.Due to domestic lack of reference value of allowable stress of H-class sucker rod,the D-class sucker rod is often used in the design,which leads to the design parameters to be too conservative,and the advantage of H-class sucker rod is not given.In view of this situation,the electro-hydraulic servo universal testing machine SHT4106 is used in laboratory tensile test to obtain the ratio of tensile strength and yield strength.And then a new method to calculate the maximum allowable stress of H-class sucker rod is established.According to the fatigue experiment requirements of the standard"SY/T5029—2013 sucker rod"to test the fatigue limit when the stress ratio is 0.1,then the Oding method equivalent stress corresponding value of H-class sucker rod is obtained.Compared with D-class rod,the application of H-class sucker rod has the advantage of lower rod diameter and pumping unit model.
引文
[1]张连山.国外抽油杆技术的发展[J].钻采工艺,1997,20(6):54-60.
[2]张连山.国外新结构和高强度抽油杆的技术发展[J].国外石油机械,1998,6(3):24-29.
[3]王少力,郑子元.超高强度抽油杆在国内外的推广应用[J].石油矿场机械,2008,37(4):24-27.
[4]吴则中,陈强,钟永海,等.我国29年来抽油杆研制工作回顾与展望[J].石油矿场机械,2012,41(1):62-67.
[5]万仁溥,罗英俊.采油技术手册(第四分册)[M].北京:石油工业出版,2008,230-232.
[6]金属材料室温拉伸试验方法:GB/T 228—2002[S].北京:中国标准出版社,2002.
[7]张琪.采油工程原理与设计[M].东营:石油大学出版社,2002,143-152.
[8]李文钧.格拉布斯法检出异常数据[J].玉溪师专学报,1986(1):90-92.
[9]李大建,陆梅,郭靖,等.H级抽油杆疲劳性能试验分析[J].石油矿场机械,2015,44(12):42-44.
[10]吴则中,郑永生,赵金献,等.材料型超高强度抽油杆用钢的性能分析[J].石油矿场机械,2001,30(1):10-15.
[11]顾尚洪.抽油杆柱设计方法剖析[J].石油钻采工艺,1989,12(4):79-84.
[12]牛彩云,黎晓茸,郭方元,等.低渗透油藏油井合理流压确定方法探讨[J].石油天然气学报(江汉石油学院学报),2009,30(1):289-291.
[2]张连山.国外新结构和高强度抽油杆的技术发展[J].国外石油机械,1998,6(3):24-29.
[3]王少力,郑子元.超高强度抽油杆在国内外的推广应用[J].石油矿场机械,2008,37(4):24-27.
[4]吴则中,陈强,钟永海,等.我国29年来抽油杆研制工作回顾与展望[J].石油矿场机械,2012,41(1):62-67.
[5]万仁溥,罗英俊.采油技术手册(第四分册)[M].北京:石油工业出版,2008,230-232.
[6]金属材料室温拉伸试验方法:GB/T 228—2002[S].北京:中国标准出版社,2002.
[7]张琪.采油工程原理与设计[M].东营:石油大学出版社,2002,143-152.
[8]李文钧.格拉布斯法检出异常数据[J].玉溪师专学报,1986(1):90-92.
[9]李大建,陆梅,郭靖,等.H级抽油杆疲劳性能试验分析[J].石油矿场机械,2015,44(12):42-44.
[10]吴则中,郑永生,赵金献,等.材料型超高强度抽油杆用钢的性能分析[J].石油矿场机械,2001,30(1):10-15.
[11]顾尚洪.抽油杆柱设计方法剖析[J].石油钻采工艺,1989,12(4):79-84.
[12]牛彩云,黎晓茸,郭方元,等.低渗透油藏油井合理流压确定方法探讨[J].石油天然气学报(江汉石油学院学报),2009,30(1):289-291.