<ul id="k48q0"><dfn id="k48q0"></dfn></ul>
<tfoot id="k48q0"><delect id="k48q0"></delect></tfoot>
<strike id="k48q0"></strike><del id="k48q0"><tfoot id="k48q0"></tfoot></del>
  • <ul id="k48q0"></ul>
  • 墨西哥灣深水水平井鉆井平臺起火沉沒事故

    [加入收藏][字號: ] [時間:2010-05-27  來源:博研論壇  關注度:0]
    摘要:   You may have heard the news in the last two days about the Deepwater Horizon drilling rig which caught fire, bur...


      You may have heard the news in the last two days about the Deepwater Horizon drilling rig which caught fire, burned for two days, thensank in 5,000 ft of water in the Gulf of Mexico.  There are still 11 men missing, and they are not expected to be found.  
    The rig belongs to Transocean, the world’s biggest offshore drilling contractor.  The rig was originally contracted through the year 2013 to BP and was working on BP’s Macondo exploration well when the fire broke out.  The rig costs about $500,000 per day to contract.  The full drilling spread, with helicopters and support vessels and other services, will cost closer to $1,000,000 per day to operate in the course ofdrilling for oil and gas. The rig cost about $350,000,000 to build in 2001 and would cost at least double that to replace today.


    Nautilus, being transported on a Heavy-Lift vessel


      The rig represents the cutting edge of drilling technology.  It is a floating rig, capable of working in up to 10,000 ft water depth.  The rig isnot moored; It does not use anchors because it would be too costly and too heavy to suspend this mooring load from the floatingstructure.  Rather, a triply-redundant computer system uses satellite positioning to control powerful thrusters that keep the rig on station within a few feet of its intended location, at all times. This is called Dynamic Positioning.
    The rig had apparently just finished cementing steel casing in place at depths exceeding 18,000 ft.  The next operation was to suspend the well so that the rig could move to its next drilling location, the idea being that a rig would return to this well later in order to complete the work necessary to bring the well into production.
    It is thought that somehow formation fluids – oil /gas – got into the wellbore and were undetected until it was too late to take action.  With a floating drilling rig setup, because it moves with the waves, currents, and winds, all of the main pressure control equipment sits on the seabed – the uppermost unmoving point in the well. This pressure control equipment – the Blowout Preventers, or ‘BOP’s” as they’re called, are controlled with redundant systems from the rig.  In the event of a serious emergency, there are multiple Panic Buttons to hit, and even fail-safe Deadman systems that should be automatically engaged when something of this proportion breaks out.  None of them were aparently activated, suggesting that the blowout was especially swift to escalate at the surface.  The flames were visible up to about 35 miles away.  Not the glow – the flames.  They were 200 – 300 ft high.
     

    上一頁12345下一頁


              您的分享是我們前進最大的動力,謝謝!
    關于我們 | 會員服務 | 電子樣本 | 郵件營銷 | 網站地圖 | 誠聘英才 | 意見反饋
    Copyright @ 2012 CIPPE.NET Inc All Rights Reserved 全球石油化工網 版權所有
    京ICP證120803號 京ICP備05086866號-8 京公網安備110105018350
    日韩成人精品日本亚洲| 大桥未久在线精品视频在线 | 无码精品国产一区二区三区免费| 亚洲精品A在线观看| 亚洲日韩国产精品乱-久| 国产精品免费视频播放器| 精品国产乱码一二三四区五区| 精品福利视频导航| 久久久精品国产免大香伊 | 日韩精品视频观看| 国产精品自在线拍国产手机版| 99re最新在线精品| 国产精品久久久久久久久久影院 | 亚洲理论精品午夜电影| 久久精品毛片免费观看| 99精品视频观看| 99久久精品免费精品国产| 99精品久久99久久久久久| 99热在线精品观看| 99re66热这里都是精品| 久久精品国产亚洲av影院| 久久精品中文无码资源站| 久久精品国产亚洲AV无码麻豆| 99久久免费中文字幕精品| 999精品视频在线观看热6| 久久亚洲精品无码AV红樱桃| 日韩精品极品视频在线观看免费| 亚洲精品在线观看视频| 精品一区二区三区在线观看视频| 精品性影院一区二区三区内射| 67194老司机精品午夜| 久久精品免费一区二区| 久热中文字幕在线精品免费| 国产乱码精品一区二区三区中 | 亚洲国产日韩综合久久精品| 亚洲日韩精品国产3区| 精品在线视频一区| 精品乱码一卡2卡三卡4卡网| 55夜色66夜色国产精品视频| 亚洲色精品vr一区二区三区| 伊人久久精品亚洲午夜|