轴向荷载对海面以上保留井口的安全问题

Discussion on Wellhead Safety Affected by Axial Load from Retaining Wellhead Above Seawater

根据生产实践中常遇到需要在海面以上保留井口的问题,在不考虑水平荷载作用的前提下,从弹性稳定性研究方法入手,采用能量法研究单桩井口在轴向集中荷载和均布荷载条件下的弹性稳定性,为今后海上保留井口作业时,校核单桩井口弹性稳定性及生存能力,提供一种定量计算方法和分析的依据。

According to the fact that it is often wanted to retain the wellhead above the water during the oil production, the elastic stabillity of single-pile wellhead under the condition that the axial concentrated load and uniform distribution load exist has been investigated and discussed by using the energy method. And a quantitative approach is also provided to determine the elastic stability and survival ability of the single-pile wellhead while the future wellhead retention operation above the seawater is going on.