“学习曲线”模式在涪陵页岩气田试气施工中的应用

涪陵页岩气公司在试气环节引入了"学习曲线"模式,建立了试气施工管理制度和工艺标准,强化监督与落实;加大了专业技能知识培训力度,实行试气施工人员持证上岗;精心做好试气施工谋划工作,确保试气施工不受因素影响;全面优化试气施工设计,及时调整试气现场管理;积极借鉴学习曲线图经验,对试气作业实行专业化分工;引进和研发先进设备和工艺,为试气作业提供有力保障。

页岩气井试气施工常见事故处理及预防

页岩气勘探开发是世界范围内的一项技术难题,由于我国的页岩气勘探工作起步比较晚,因此在发展过程中或多或少的遇到了一些问题。本文就举出了几个页岩气井试气施工过程中常见的事故现象,并分析其成因,提出相应的处理方式和预防措施,希望能够为该类事故的预防工作提供参考意见。

浅谈试气施工中的常见问题

油气勘探作业中的试气施工非常重要,将直接决定油气勘探质量和油气开发进度。不过因气井环境压力较高,因此气井时常出现油气喷射问题。此外在试气时,也经常会受到外界环境影响,出现油嘴冻堵问题,这必然会给试气作业及油田勘探工作带来更大难度,影响试气作业的质量与进度。对此为实现油田试气高质量的施工,本文将对试气常见问题提出一些可行性建议。

Wind tunnel study on wind-induced vibration of middle pylon of Taizhou Bridge

Full aero-elastic model tests are carried out to investigate wind-induced vibration of middle steel pylon of Taizhou Bridge. Model of the pylon under different construction periods is tested in both uniform and turbulent flow field. And the yaw angle of wind changes from transverse to longitudinal. Through full aero-elastic model testing, wind-induced vibration is checked, which includes vortex resonance, buffeting and galloping. Vortex resonance is observed and further studies are carried out by changing damping ratio. Based on wind tunnel testing results, wind-resistance of middle pylon is evaluated and some suggestions are given for middle pylon's construction.