導航:全球石油化工網 >> 資訊頻道 >> 技術裝備

    空中直升機地層描述,精確高效

    [加入收藏][字號: ] [時間:2009-06-10 SPE 關注度:0]
    摘要:簡介:一項廣泛用于軍事領域的地形勘查技術,目前將會被應用于油田勘察現場。Battelle和美國Oak Ridge國家實驗室聯合開發的 UXO直升機技術,可以在距地面1米的空中進行油田地層目標精確探測和繪圖。 A geophysic...
    簡介:一項廣泛用于軍事領域的地形勘查技術,目前將會被應用于油田勘察現場。Battelle和美國Oak Ridge國家實驗室聯合開發的 UXO直升機技術,可以在距地面1米的空中進行油田地層目標精確探測和繪圖。


    A geophysical survey technology that has thus far been used in military applications is ready for the oil field. The UXO Helicopter technology, which was jointly developed by Battelle and Oak Ridge National Laboratory, promises precise subsurface target detection and mapping for oil fields from just one meter off the ground.

    The technology incorporates a geophysical survey technique, which is based on mining and mineral exploration principles, that uses magnetic and electromagnetic sensor systems and global-positioning methods to provide data analysis, digital maps, and target lists. According to William Doll, geophysicist and research leader with Battelle, the major differences between this technology and other types of magnetometer-based and electromagnetic-based surveying systems lie in the detail of data obtained and the time required to capture it.

    “Some higher altitude magnetic systems are already used for prospecting in the oil industry, and that is what our technology evolved from,” he said. “The difference is that we fly at low altitudes—on the order of one to two meters above the ground—to generate very detailed subsurface maps.

    “We have been mapping a great deal of unexploded ordinances such as bombs and artillery shells for the US military, which was the original application for the technology,” Doll continued. “The technology is mounted via a fixed boom under a helicopter, which then flies at very low altitude over an area to detect subsurface targets including landfills, pipelines, power lines, or unexploded bombs, mortars, and other munitions.”

    The magnetometer-based systems will reportedly detect any material that can register a magnetic response in a manner which is faster, more precise, and inherently safer than land-based geophysical detection systems. During a field measurement, an operator in the helicopter monitors the incoming data while the helicopter is moving across the survey area at typical speeds of 30 to 60 miles/hr, depending on vegetative cover and terrain. “The operator is monitoring the data coming in from the magnetometers, and if the values are inappropriate, they can land and make any necessary adjustments or repairs,” Doll said.

    An extra level of precision is afforded with the global-positioning satellite (GPS) system that is used to precisely track the survey path during the entire survey. “The ground-based GPS system allows us to correct our data to a precision of approximately 20 cm,” said David Bell, Battelle’s business development manager for the UXO Helicopter technology. “This level of precision is important when you consider that you may be looking for a piece of ordinance that is the size of a soda can. If, for example, the pilot went slightly off course or flew over one mapping line at too high an altitude, the GPS system allows us to repeat measurements on those exact lines quickly, which is a critically important time saver.”

    Significant time, cost savings afforded 

    Bell said that a mapping area of 500 acres or greater is necessary to make the survey economically viable, but that significant cost and time savings are afforded compared to ground-based geophysical surveys. “We can easily survey a 500-acre area in one day, and in fact we have surveyed an 800-acre area in as little as one day. That is with very finely spaced data, lines that would have less than a 2-m separation over the entire area. Most ground-based systems using towed instruments can survey a maximum area of 10 acres per day.

    “We’re conservatively saying that there is about a 100-times difference in terms of speed and a 20-times reduction in cost with our system compared to ground-based measurements,” Bell continued.

    He pointed to the flexibility of using this airborne system over both land and water as another advantage. “Some of the sites we have surveyed in the past have been combinations of terrestrial and aquatic acreage, and moving from one to the other is a seamless transition for our technology. Other techniques typically require a transition from a land-based system to a different boat-based measurement device, which sets up a disconnect in the measurement and some difficulty in reconciling the data. We are not hampered in this way and can move quickly from measuring over soil to over water without making any changes to our measurement system.”

    For applications in which geological, rather than man-made, subsurface structures are being mapped, Battelle incorporates a base station magnetometer which indicates if there are any changes to the earth’s magnetic field—due to phenomena such as sunspot cycle effects—that will require the data to be corrected.

    In addition to passive magnetometer systems, the UXO Helicopter system can also be fitted with a time-domain electromagnetic system, which provides for the detailed location of ordnance, even in areas with basalts and lava flows. “Magnetometer systems cannot see anything but the lava flow in these areas,” Doll said. “Electromagnetic systems, on the other hand, are largely insensitive to basaltic geology because they measure the electrical resistivity or conductivity of shallow solids and rock. This is a different geological property that might indicate changes in fluid content at the very near surface, as in the vicinity of a pipeline leak.”

    Oilfield applications aplenty 

    While Battelle has been making unexploded ordnance measurements for military clients since the mid 1990s, they have not conducted any oilfield trials as of yet. However, Doll sees many application areas that could immediately benefit from this technology. “For example, we have generated some interest with an oil company to run unexploded ordnance studies in a sensitive onshore location,” he said. “They want to shoot seismic there, but must ensure that the survey area is free of explosive devices before sending a vibroseis truck and crew into the area.”

    The system will also allow operators to evaluate an area for less dangerous subsurface obstacles prior to conducting a seismic survey or drilling a well. “We can pinpoint the location of utilities on site, such as underground cables, and previous wells or pipelines in an area that has not been evaluated for some time,” Doll said. “The UXO helicopter technology could also be used to supplement information from high-altitude magnetic surveys to more accurately identify subsurface magnetic features of geological structures that provide clues on where to drill a well.”

    To learn more about the UXO Helicopter technology, visit www.battelle.org.

    楊寶劍 是振威(全球)石油網的高級技術編輯,在石油技術資訊行業有八年的學識和經驗。他源源不斷地提供石油行業全球最新的技術創新、研發成果、現場應用情況等信息。如果你對該項新技術有任何的疑問,或者對“新技術新產品”未來的內容有任何問題或建議,請聯系楊寶劍編輯 +86 10-58236512 Email:allenyo@zhenweiexpo.com 歡迎與行業互動!
    關鍵字: 直升機 地形勘察 
    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 @ 2011 CIPPE.NET Inc All Rights Reserved 全球石油化工網 版權所有 京ICP證080561號
    国产免费久久精品99久久| 久久免费观看国产精品88av| 国产精品国产午夜免费福利看| 久久久久久亚洲精品| 国产日韩精品中文字无码| 精品人妻少妇一区二区三区在线| 亚洲日韩精品无码一区二区三区| 国产精品香蕉在线观看不卡 | 亚洲高清国产AV拍精品青青草原| 精品成人一区二区三区四区| 精品一区二区高清在线观看| 日韩精品午夜视频一区二区三区| 国产香蕉免费精品视频| 91大神精品网站在线观看| 久久精品视频网站| 九九99精品久久久久久| 三级精品视频在线播放| 亚洲精品一级无码鲁丝片| 日韩在线一区二区三区视频| 日韩在线观看视频网站| 国产在线精品二区韩国演艺界| 青青青国产精品手机在线观看| 亚洲精品理论电影在线观看| 久久精品中文字幕大胸| 99国产精品一区二区| 黑人无码精品又粗又大又长 | 午夜精品在线免费观看| 久久久久久亚洲精品无码| 最新国产精品亚洲| 亚洲综合精品第一页| 网友自拍区视频精品| 98色精品视频在线| 日产精品一卡2卡三卡4乱码| 国产欧美另类久久久精品图片 | 亚洲欧美综合精品成人导航| 亚洲精品乱码久久久久蜜桃| 国产乱码精品一区二区三区香蕉 | 亚洲无码精品浪潮| www国产亚洲精品久久久| 国产精品内射婷婷一级二| 精品无码久久久久久久动漫|