Ocean Margin DrillingCongress of the United States, Office of Technology Assessment, 1980 - 120 من الصفحات |
طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
active margins advisory areas blowout preventer budget capability Committee continental margins contractor deep drilling deep ocean drilling Deep Sea Drilling deepwater downhole Drilling for Scientific drilling operations drilling platform drilling ship drilling system drilling vessel dynamically positioned effort engineering equipment ESCALATION evaluate feet funds gas resources Geological and Geophysical geophysical surveys Glomar Challenger Glomar Explorer industry participants Institution of Oceanography IPOD John Imbrie JOIDES major margin drilling program Marine Board million Mohole National Science Foundation NSF's ocean crust ocean margin drilling ocean science oceanographic oceanographic institutions offshore oil and gas oil companies OMD program panel passive margins petroleum companies phase possible present program pressure priority problems proposed riser science program scientific drilling scientific objectives Scientific Ocean Drilling scientific program Scripps Institution Sea Drilling Project sea floor sedimentary sediments specific studies technology development water depths wellhead
مقاطع مشهورة
الصفحة 53 - The Merits and Potential of a Proposed Ocean Drilling Program for the 1980' s, The Report of the Committee on Post-IPOD Science, Washington, DC : National Science Foundation, July 1979.
الصفحة 13 - The four areas of investigation — passive margins, active margins, ocean crust, and paleoenvironment — raise fundamental scientific questions that drilling could address. As a compromise, the plan provides for a few holes to be drilled in each area type. While the probability of achieving all objectives in each hole is no better than even, that of accomplishing some of the objectives is considerably higher. While, in general, the importance of the scientific results will depend on how deep the...
الصفحة 6 - ... 7. The petroleum company participants are expected to decide this July whether to support the first year's efforts. Most of these participants support the program because they believe it will result in progress in science and have some secondary benefit to their interest in subsea hydrocarbon resources. Many companies are concerned about their liability as participants in the program, about anti-trust problems that may develop and about the level of funding required by each.
الصفحة 36 - A careful check of the wellhead structure strength will have to be performed at each new site. It will depend on soil measurements at each site. The high bending moments that must be tolerated will likely require wellhead structures larger than those now used to distribute the load over a broader area. These checks should be made early because of the time needed to design and build special wellhead structures.
الصفحة 8 - Geological Observatory Alternatives to the Program The most appealing alternative to the present program, one that could address exciting first order scientific problems, stimulate the broad interest of the scientific community and not cost the taxpayer much more than the present deep sea drilling program would be a program that had two major thrusts. The first would involve a continuation of the present Gloraar Challenger drilling program, the second a Continental margin geophysical survey program.