English 中文網(wǎng) 漫畫網(wǎng) 愛(ài)新聞iNews 翻譯論壇
    中國(guó)網(wǎng)站品牌欄目(頻道)
    當(dāng)前位置: Language Tips> Audio & Video> 新聞播報(bào)> Normal Speed News VOA常速

    Both old and new cutting-edge technology used in oil spill

    [ 2010-05-07 15:02]     字號(hào) [] [] []  
    免費(fèi)訂閱30天China Daily雙語(yǔ)新聞手機(jī)報(bào):移動(dòng)用戶編輯短信CD至106580009009

    Both old and new cutting-edge technology used in oil spill

    Since the April 20 explosion and fire that sank the BP Deepwater Horizon off-shore oil rig, about 800,000 liters of crude oil a day have been spewing from the broken well into the Gulf of Mexico.

    The massive spill is threatening marine life, commercial fishing and hundreds of kilometers of coastal wetlands.

    When President Barack Obama visited the Gulf region Sunday to assess the scope of the disaster and the steps being taken to end it, he made it clear to reporters what he sees as the top priority.

    Both old and new cutting-edge technology used in oil spill

    "We've got a bunch of different tasks. The first one is how do we plug this hole."

    'The hole'

    That hole - actually three gushing vents of crude oil at the damaged ocean-floor well-head nearly 2 kilometers below the surface - was caused by the failure of a blow-out preventer. That's a pressure-sensitive safety device designed to shut off the flow of oil in case of a sudden break in the pipe leading up to the floating oil platform.

    Lamar McKay, head of BP America told ABC News that attempts to use underwater robotic equipment to fix the shut-off valve are complex. "This is like doing open-heart surgery at 5,000 feet [1,524 meters], in the dark with robot-controlled submarines."

    British Petroleum is leading the repair and cleanup effort. Chief Executive Officer Tony Hayward says BP has also begun drilling a relief well to intersect the existing well, bore a hole in it, and then pump in cement to plug the leak. But that job could take as long as three months to complete.

    Both old and new cutting-edge technology used in oil spill

    Dome solution

    Right now, the best hope for a quick fix appears to be the 12-meter tall concrete-and-steel domed tower that BP engineers are preparing to lower into the Gulf and place directly over the main leak possibly by week's end. The 80-ton box would capture and siphon the escaping oil to tankers on the surface.

    Richard Charter is an oil industry expert and senior policy advisor for Defenders of Wildlife. He says the dome technique has never been used at such depths and is risky.

    "I would hope that they would be very careful in deploying those with cables and remote operating vehicles, not to pump and break off the riser pipe." Because if that happens, he says, "You would have a wide open well on the sea floor and the flow rate could increase exponentially."

    BP announced Wednesday that their robotic submersible had managed to stop one of the three leaks. However, until the other two are capped, oil continues to flow unabated into the Gulf of Mexico.

    New approaches

    The disaster response team includes U.S. government agencies and British Petroleum.

    BP's Chief Executive Officer Tony Hayward says a massive operation is underway to contain the spreading oil slick down before it reaches shore.

    Both old and new cutting-edge technology used in oil spill

    "We're doing something that's never been done before, we're deploying dispersants on the sea bed at the source of the leak. On the surface we have a fleet of 100 vessels to contain the spill. We are dispersing dispersant from almost an air force of planes. We've got five planes including two Hercules C-130s deploying dispersant."

    Those dispersants, designed to break the oil into small and more manageable globules, are not without their problems, says Defenders of Wildlife Senior Advisor Richard Charter.

    "And some of it sinks as tar balls. So in the ocean the toxicity impacts the bio-availability of the oil toxins, and it may be greater as a result of applying the dispersant. But it may mean that fewer birds die in the marshes of Louisiana as the oil washes ashore."

    Charter says such methods to contain or slow a spill - like dispersants, skimming boats and floating booms - have been around for decades.

    He such methods will only address about 10 percent of the oil. "Even if you have containment booms deployed in the ocean, you quickly reach a certain sea state where the oil goes over the boom and under the boom and there is a component of this slick that is under the surface anyway and that just goes right under the boom."

    Human factors

    Robert Bea, an engineer with the Center for Catastrophic Risk Management at the University of California Berkley has worked on oil disaster teams for five decades.

    He compares technology developed for off-shore drilling to that developed to send astronauts into space. Bea says the pattern of repeated failures on oil rigs - including this latest disaster - points to human factors and not prevention technology. "[Among these are] procedures, how people are selected, how they are trained at various levels. And I think that we are yet to see this kind of thinking show up strongly on board these drill rig operations."

    Bea hopes the massive oil spill will prompt new and stricter regulations governing off-shore oil drilling operations. He says these rules should address not only technical fixes like requiring remote shut-offs, moving operations farther from shore, and better containment strategies, but also management issues like how a rig is staffed and operated.

    Bea says the oil and gas industry has consistently opposed stricter federal regulation, most recently in 2009. Among the voices rejecting those rules, he says, was British Petroleum.

    siphon: to move a liquid from one container to another, using a siphon 用虹吸管吸(或抽)

    Related stories:

    Oil spill puts fisheries, birds at risk along US gulf coast

    Obama visits oil imperiled U.S. Gulf coast

    US declares oil slick 'spill of national significance'

    漏油 fuel leak

    (來(lái)源:VOA 編輯:陳丹妮)

     
    中國(guó)日?qǐng)?bào)網(wǎng)英語(yǔ)點(diǎn)津版權(quán)說(shuō)明:凡注明來(lái)源為“中國(guó)日?qǐng)?bào)網(wǎng)英語(yǔ)點(diǎn)津:XXX(署名)”的原創(chuàng)作品,除與中國(guó)日?qǐng)?bào)網(wǎng)簽署英語(yǔ)點(diǎn)津內(nèi)容授權(quán)協(xié)議的網(wǎng)站外,其他任何網(wǎng)站或單位未經(jīng)允許不得非法盜鏈、轉(zhuǎn)載和使用,違者必究。如需使用,請(qǐng)與010-84883631聯(lián)系;凡本網(wǎng)注明“來(lái)源:XXX(非英語(yǔ)點(diǎn)津)”的作品,均轉(zhuǎn)載自其它媒體,目的在于傳播更多信息,其他媒體如需轉(zhuǎn)載,請(qǐng)與稿件來(lái)源方聯(lián)系,如產(chǎn)生任何問(wèn)題與本網(wǎng)無(wú)關(guān);本網(wǎng)所發(fā)布的歌曲、電影片段,版權(quán)歸原作者所有,僅供學(xué)習(xí)與研究,如果侵權(quán),請(qǐng)?zhí)峁┌鏅?quán)證明,以便盡快刪除。
     

    關(guān)注和訂閱

    人氣排行

    翻譯服務(wù)

    中國(guó)日?qǐng)?bào)網(wǎng)翻譯工作室

    我們提供:媒體、文化、財(cái)經(jīng)法律等專業(yè)領(lǐng)域的中英互譯服務(wù)
    電話:010-84883468
    郵件:translate@chinadaily.com.cn
     
     
    亚洲综合最新无码专区| 免费无码又爽又刺激高潮软件| 亚洲av无码一区二区三区在线播放 | 久久亚洲中文字幕精品一区| 亚洲国产精品无码一线岛国| 中文字幕一区二区三区久久网站 | 国产成人无码AV一区二区在线观看 | 无码毛片一区二区三区中文字幕 | 亚洲欧美日韩中文字幕一区二区| 国产啪亚洲国产精品无码| 一区二区三区人妻无码| 中文字幕在线一区二区在线| 永久免费无码日韩视频| 91嫩草国产在线无码观看| 无码一区二区三区视频| 日本无码色情三级播放| 亚洲伦另类中文字幕| 在线综合亚洲中文精品| 国产成人亚洲综合无码精品| 亚洲AV无码国产丝袜在线观看| 亚洲av中文无码| 久久久久综合中文字幕| 熟妇人妻VA精品中文字幕| 午夜精品久久久久久久无码 | 精品无码人妻久久久久久| 小SAO货水好多真紧H无码视频| 免费无码午夜福利片69| avtt亚洲一区中文字幕| 日韩精品久久无码中文字幕 | 国产真人无码作爱视频免费| 亚洲AV无码精品无码麻豆| 亚洲性无码一区二区三区| 精品多人p群无码| 内射人妻少妇无码一本一道| 狠狠精品久久久无码中文字幕| 久久无码高潮喷水| 国产啪亚洲国产精品无码| 最新中文字幕av无码专区| 亚洲精品无码成人片久久| 波多野结衣AV无码久久一区| 欧美日韩v中文字幕|