Engineering Study of Televiewer Possibilities for a Deep SeaWireline Re-Entry Probe

深海有线再入探测器电视观众可能性的工程研究

• 批准号: 8817592
• 负责人: Fred Spiess
• 金额: $ 3.84万
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-02-01 至 1991-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8817592&HistoricalAwards=false
• 关键词: Engineering; Study; Televiewer; Possibilities; Deep

This is an ocean engineering proposal to perform a feasibility study of the integration of a borehole televiewer (BHTV) with a borehole wireline re>.>entry system. The proposers have received previous funding from NSF and DARPA (APL/JHU) to develop the capability to re.enter boreholes drilled into the seafloor utilizing a deep sea vehicle supported by an electromechanical cable (wireline). This proposal is to perform the preliminary engineering studiesto determine how a BHTV could be integrated into the re.entry vehicle. BHTV's are acoustic devices that scan the inner walls of drill holes. The acoustic signals are converted into imagesthat can be used to interpret the sedimentary and metamorphic layering as well as the shape of the hole (ellipticity and breakouts). These images can then be used for both scientific and operational purposes. Interpretation of the hole shape and breakouts can be used to determine stress and direction of stress within the drilled section. The status of hole condition and locations of various layers is also useful operational information since it may help to locate areas that may be in question for subsequent measurement and may indicate whether a certain toll would be useful in a particular location. In an effort to improve reliability over existing BHTV's, proposers will also investigate the basic sensor design to determine if the standard acoustic narrow beam rotating headcan be replaced by multiple, simultaneously monitored non>.>rotating preformed beams. If proven feasible, subsequent proposal(s) would be expected for the further design, construction and testing of the system. It boreholes with re>.>entry cones including those in the Atlantic and Pacific Basin.

这是一个海洋工程方案， 井中电视（BHTV）与 钻井电缆回收>.>入口系统 提案人此前曾获得NSF和DARPA的资助 (APL/JHU）开发重新进入钻孔的能力 利用深海潜水器进入海底 机电电缆（钢丝绳）。 本提案旨在进行初步工程研究， 确定如何将BHTV集成到再入大气层中 车辆 BHTV是扫描内壁的声学设备 钻孔。 声信号被转换成 图像可以用来解释沉积物， 变质分层以及洞的形状 （椭圆度和分线）。 这些图像可以用于 科学和操作目的。 解释 孔形状和破断可用于确定应力， 钻孔段内的应力方向。 地位 孔条件和各层位置也是有用的 业务信息，因为它可以帮助定位区域， 可能是后续测量的问题， 在特定的地点，一定的通行费是否有用。 为了提高现有BHTV的可靠性， 提议者还将研究基本的传感器设计， 确定标准声学窄波束旋转头是否可以 被多个同时监控的非>。>旋转 预制梁 如果证明可行，预计随后的提案将用于 系统的进一步设计、建造和测试。它 钻孔，重新>.>包括大西洋的入口锥， 太平洋盆地。