钻井用内防喷压差自密封式旋塞阀结构改进
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摘要
为了解决在役旋塞阀摩擦力矩大、阀芯旋转困难以及密封不严等问题,通过对目前旋塞阀结构的优缺点分析,找出旋塞阀失效的主要原因。利用压力自平衡和压差自密封原理,对旋塞阀的结构进行改进,设计了一种新型钻井用内防喷压差自密封式旋塞阀。通过对旋塞阀主密封面的密封比压计算和旋转系统的三维有限元接触分析,确保密封面上的材料满足强度要求,且能实现有效密封,使其更好地服务于钻井现场,同时为顶驱内防喷装置的设计和改进提供参考。
In order to solve the problems of large friction torque,difficult operation of valve spool and loose sealing of in-service plug valve,the advantages and disadvantages of the current plug valve have been discussed and the main reasons for the failure of the plug valve have been pointed out.The structure improvements of the plug valve based on the principle of self-balance pressure and pressure difference self-sealing have been completed and a new type of internal pressure preventer of drilling-stopcock has been engineered.By the designing of the sealing pressure on the main sealing surface of the plug valve and the three-dimensional finite element contacting-analysis of the rotating system,the material selection on the sealing surface's satisfaction of the strength requirement has been guaranteed.The sealing surface's reliable sealing could be achieved and it provides an important reference for the design and improvement of the blowout preventer in the top drive.
In order to solve the problems of large friction torque,difficult operation of valve spool and loose sealing of in-service plug valve,the advantages and disadvantages of the current plug valve have been discussed and the main reasons for the failure of the plug valve have been pointed out.The structure improvements of the plug valve based on the principle of self-balance pressure and pressure difference self-sealing have been completed and a new type of internal pressure preventer of drilling-stopcock has been engineered.By the designing of the sealing pressure on the main sealing surface of the plug valve and the three-dimensional finite element contacting-analysis of the rotating system,the material selection on the sealing surface's satisfaction of the strength requirement has been guaranteed.The sealing surface's reliable sealing could be achieved and it provides an important reference for the design and improvement of the blowout preventer in the top drive.
引文
[1]朱晓凤.方钻杆旋塞阀失效分析与优化设计[D].成都:西南石油大学,2015.
[2]陈浩,宋周成,王晓萍,等.方钻杆旋塞阀的失效分析[J].钻井工程,2007,27(12):80-82.
[3]胡航行,涂亚东,汪随,等.方钻杆旋塞阀磨损失效的技术研究[J].内江科技,2018,39(1):54-55.
[4]肖晓华,戴巍,杨贵康,等.方钻杆旋塞阀的失效分析与改进[J].流体机械,2009,37(1):45-49.
[5]谢娟,王德玉,李才良,等.方钻杆旋塞阀的失效与受力分析[J].石油矿场机械,2007,36(12):49-51.
[6]何玉发,朱海燕.方钻杆旋塞阀失效的力学机理[J].重庆科技学院学报,2011,13(4):115-118.
[7]聂海滨,于兴胜,岳苏,等.旋塞阀密封失效机理分析与改进[J].石油矿场机械,2010,39(4):53-56.
[8]张继升,董斌,李悦钦,等.方钻杆旋塞阀密封设计[J].钻采工艺,2007,30(5):105-107.
[9]陈浩,马迁霞,王晓萍,等.方钻杆旋塞阀密封设计探讨[J].石油机械,2007,35(9),124-126.
[10]刘红莉,孙静友.方钻杆旋塞阀的改进[J].中国石油和化工标准与质量,2016(3):59-61.
[11]朱卫新,罗勇,陈彬,等.方钻杆旋塞阀工艺改进设计[J].石油矿场机械,2009,38(3):85-87.
[12]李新利,孟庆辉,华健军,等.低转矩方钻杆旋塞阀:102071910A[P].2011-05-25.
[2]陈浩,宋周成,王晓萍,等.方钻杆旋塞阀的失效分析[J].钻井工程,2007,27(12):80-82.
[3]胡航行,涂亚东,汪随,等.方钻杆旋塞阀磨损失效的技术研究[J].内江科技,2018,39(1):54-55.
[4]肖晓华,戴巍,杨贵康,等.方钻杆旋塞阀的失效分析与改进[J].流体机械,2009,37(1):45-49.
[5]谢娟,王德玉,李才良,等.方钻杆旋塞阀的失效与受力分析[J].石油矿场机械,2007,36(12):49-51.
[6]何玉发,朱海燕.方钻杆旋塞阀失效的力学机理[J].重庆科技学院学报,2011,13(4):115-118.
[7]聂海滨,于兴胜,岳苏,等.旋塞阀密封失效机理分析与改进[J].石油矿场机械,2010,39(4):53-56.
[8]张继升,董斌,李悦钦,等.方钻杆旋塞阀密封设计[J].钻采工艺,2007,30(5):105-107.
[9]陈浩,马迁霞,王晓萍,等.方钻杆旋塞阀密封设计探讨[J].石油机械,2007,35(9),124-126.
[10]刘红莉,孙静友.方钻杆旋塞阀的改进[J].中国石油和化工标准与质量,2016(3):59-61.
[11]朱卫新,罗勇,陈彬,等.方钻杆旋塞阀工艺改进设计[J].石油矿场机械,2009,38(3):85-87.
[12]李新利,孟庆辉,华健军,等.低转矩方钻杆旋塞阀:102071910A[P].2011-05-25.