海上完井防砂密封模块密封性能研究  

RESEARCH ON SEALING PERFORMANCE OF THE SEALING MODULE FOR OFFSHORE SAND CONTROL OPERATION

作　　者：左凯 鞠少栋 马认琦 包陈义 刘传刚 吴占民 

机构地区：[1]中海油能源发展监督监理技术公司

出　　处：《钻采工艺》2014年第3期71-74,10,共4页Drilling & Production Technology

基　　金：国家科技重大专项子课题"完井防砂工具系列化及现场应用"(2011ZX05057-002-004)部分研究内容

摘　　要：密封模块是海上油气田完井防砂和生产管柱中常用的密封组件,其密封可靠性对于现场作业安全至关重要。为研究密封模块的密封性能,基于参数化建模方法,利用ANSYS软件建立密封模块轴对称有限元分析模型,确定橡胶件材料常数,计算其接触压力与等效应力,进行密封模块关键影响因素分析。研究表明,橡胶件硬度与初始压缩量越大、钢件与密封筒间隙越小,橡胶件接触压力越大。而橡胶件等效应力受硬度影响较大,设计时推荐橡胶件邵氏硬度大于90,初始压缩量大于0.15 mm,接触宽度大于4 mm,钢件与密封筒的间隙小于0.15 mm。基于文章理论方法和结论自主设计的密封模块已在海上油田得到成功应用。The sealing module is the common seal assembly of sand control completion and production strings in offshore oil and gas field,sealing reliability of which is very important to field operation safety. To study the sealing performance of the sealing module,the axisymmetric finite element analysis model was established by using ANSYS software based on parametric method to determine material constants of the rubber and to calculate contact pressure and equivalent stress of the sealing module. The key influential factors of the sealing module were analyzed. The research results showed that the seal contact pressure rised with the rubber hardness and initial compression amount increasing and the gap between the steel part and the sealing bore becoming smaller. The rubber hardness played an important role on its equivalent stress changing. In the design of sealing module,the recommended rubber Shore hardness should be greater than 90,the initial compression amount is more than 0.15mm,the contact width exceeding 4mm and the gap between the steel part and the sealing bore is less than 0. 15mm. The sealing modules of independent design have been successfully applied in the offshore oilfield based on this treatise's theoretical method and conclusion.

关 键 词：密封模块 参数化 密封性能 影响因素 

分 类 号：TE53[石油与天然气工程—油气田开发工程]