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

这是一项海洋工程提案，旨在对井眼电视（BHTV）与井眼电缆re>的集成进行可行性研究。>输入系统。提议者已经从NSF和DARPA （APL/JHU）获得了先前的资金，用于开发利用由机电电缆（电缆）支持的深海车辆重新进入海底钻孔的能力。该提案旨在进行初步工程研究，以确定BHTV如何集成到再入飞行器中。BHTV是一种声波设备，可以扫描钻头内壁。声波信号被转换成图像，可以用来解释沉积和变质层状以及洞的形状（椭圆性和突围）。然后，这些图像可以用于科学和业务目的。对井眼形状和裂缝的解释可以用来确定钻段内的应力和应力方向。井眼状况和各层的位置也是有用的操作信息，因为它可以帮助确定后续测量可能存在问题的区域，并可以指示特定的收费在特定位置是否有用。为了提高现有BHTV的可靠性，提议者还将研究基本传感器设计，以确定标准声窄波束旋转头是否可以被多个同时监测的非>取代。>旋转预制梁。如果证明可行，预计后续的建议将进一步设计、建造和测试该系统。它钻孔时用的是bbb。包括大西洋和太平洋盆地在内的100个进入锥。

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.