Description The Ultra-High Temperature Multi-Sensor Memory Tool (UHT-MSM), developed by the Geophysical Research Corporation for the University of Miami under NSF funding, is a slim-hole memory tool capable of measuring pressure and temperature in hot boreholes. It was deployed for the first time during ODP Leg...
Description The Multifunction Telemetry Module (MFTM) is a wireline logging telemetry system that allows a string of LDEO wireline tools to operate in a Schlumberger (SLB) toolstring and acquire data in a single logging pass. The MFTM system has a modular design and operates in three configurations: SLB...
Description The Core Barrel – Retrievable Memory Module (CB-RMM) may be deployed routinely with all standard IODP core barrels. It has been designed to capture incoming weight-on-bit, torque-on-bit, and pressure data from the Drilling Sensor Sub via a wireless inductive link. The data are transmitted between two...
The lockable flapper valve (LFV) is a component of the APC/XCB Bottom Hole Assembly (BHA). It is hinged and sprung on one side and is designed to prevent fluids from backflowing up the drill pipe. The LFV presents an obstacle for the logging operation, as a closed LFV...
Description Although the standard Schlumberger sonic logs could provide accurate compressional velocities, the additional information from the multi-channel sonic log tool (MCS) enabled determination of the elastic properties of the formation and a qualitative estimate of fracture transmissivity. The MCS was a multi-receiver, single-source sonic logging tool...
Description The TAP (High Resolution Temperature / Acceleration / Pressure) tool was designed at LDEO to acquire borehole temperature, tool acceleration and hydrostatic pressure data. It replaced the Lamont Temperature Tool (TLT) and was deployed during ODP and IODP from 1988 to 2005. The TAP tool was...
Description The Dipole Shear Sonic Tool was developed at Lamont-Doherty Earth Observatory. It consisted of a piezoceramic monopole compresional wave transmitter (12-14 kHz), a wideband dipole shear wave transmitter (2-4 kHz), and a semirigid receiver array, including four compressional wave and three shear wave receivers. The...
Description Because a separate logging run dedicated solely to heat flow measurement is not economically feasible, the Borehole Research Group at LDEO designed a self-contained tool that could be attached to the bottom of any of the Schlumberger strings or to the BRG specialty tools from...
Description The Magnetic Susceptibility Sonde version B (MSS-B) is a wireline logging tool that measures borehole magnetic susceptibility at two vertical resolutions and depths of investigation. The tool incorporates a single-coil sensor designed to provide high-resolution measurements of magnetic susceptibility. This sensor was developed by Bartington Instruments. The...
Description The Core Barrel Temperature Tool (CB-TT) was developed by the Borehole Research Group in order to assess temperature conditions while drilling and determine if conditions were favorable for subsequent wireline and Logging-While-Drilling operations in hydrothermal environments. Along with the Drill String Acceleration Tool CB-DSA-XM, the...