Collaborative Research: Anaysis and Development of a New Pressure Probe for the IODP

PIS将建造双压力温度锥形探头(DPTTP)，用于在本合同下的综合海洋钻探计划中部署。该仪器将用于现场估算海底沉积岩的孔压、渗透率和温度。该工具扩展了目前的ODP型压力探头DVTP-P的能力，因为它将具有更窄的几何形状(更快的消散)，并将使用新的双压力传感器技术，其中来自两个传感器的压力相互关联，以从部分消散记录解释现场压力和渗透率。DPTTP将采用模块化配置，包括1)机械输送单元，2)数据采集和存储组件，以及3)锥形探头。交付单位将是现有的消耗臭氧层物质收集系统。数据采集单元将是一种新的多通道系统，用于一般远程应用：未来的岩土工具可以像锥形探头一样连接到前两个单元。DPTTP将在第二年进行实地测试，以优化设计。最后的实地测试将在陆地上进行，或者是在机遇号上巡航。理论分析将与DPTTP的开发同时进行。

The PIs will build the Dual Pressure Temperature Tapered Probe (DPTTP) for deployment in the Integrated Ocean Drilling Program under this award. This tool will be used to estimate in situ pore pressure, permeability, and temperature of subseafloor sedimentary rocks. The tool extends the capability of the current ODP pressure probe, the DVTP-P, because it will have a narrower geometry (more rapid dissipation) and it will use a new dual pressure sensor technology wherein pressures from two sensors are cross-correlated to interpret in-situ pressure and permeability from partial dissipation records. The DPTTP will have a modular configuration with 1) a Mechanical Delivery Unit, 2) a Data Acquisition and Storage Assembly, and 3) a Tapered Probe. The Delivery Unit will be the existing ODP colleted system. The Data Acquisition Unit will be a new multi-channel system for general remote application: future geotechnical tools can be attached like the Tapered Probe to the 1st two units. The DPTTP will be land field tested in Year 2 to optimize design. A final field test will be on land or a cruise of opportunity. Theoretical analyses will be pursued concurrently with DPTTP development.