Long-Term Monitoring of Off-Axis Hydrogeology on the Costa Rica Rift Using an Instrumented Wireline Multi-Packer System

OCE9819780 Spess--推荐的项目将开发和部署两个有线可展开的新一代仪表式井眼密封件(循环封隔器改装套件或软木塞)，它们将集成包含仪表式多封隔器。这些集成系统将完全可由斯克里普斯海洋物理实验室、斯克里普斯海洋研究所绳索控制车安装和回收，使这些下一代软木的安装和回收成为可能，而不是通过ODP型钻井船JOIDES决议。这两个系统将安装在504B孔和附近的896A孔内，以测量哥斯达黎加裂谷南翼上洋壳内的原位水文地质流体流动和过程。该电缆系统的开发符合1997年12月JOI/USSP主办的“先进软木”研讨会对未来软木开发提出的两项原则建议--1)对多个地层带进行独立密封和监测；2)最大限度地利用电缆进入密封的井眼。

OCE9819780Spiess--The recommended project will develop and deploy two wireline-deployable, new-generation instrumented borehole seals (Circulation Obviation Retrofit Kits or CORKs) that will integrally contain instrumented multi-packers. These integrated systems will be fully deployable and recoverable by the Marine Physical Lab, Scripps Institution of Oceanography wireline Control Vehicle, making installation and recovery of these next-generation CORKs possible by ships of convenience rather than the ODP drillship JOIDES Resolution. These two systems will be installed within Hole 504B and the nearby Hole 896A to measure in-situ hydrogeological fluid flow and processes within the upper oceanic crust on the south flank of the Costa Rica Rift. Development of this wireline system fulfills the two principle recommendations for future CORK development proposed by the December, 1997 JOI/USSP-sponsored workshop on "Advanced CORKs"- that of 1) independent sealing and monitoring of multiple formations zones; and 2) maximizing wireline access to sealed boreholes.***