High-resolution flushed zone bulk volume of water measurement
Our High-Frequency Dielectric Tool (HFDT™) technology measures the attenuation and phase of a 1-GHz microwave propagating near the borehole wall. This pad-type tool provides you with the bulk volume of water in the near-borehole region of the formation. The intrinsic vertical resolution of the log is approximately 1 in. It allows a more accurate evaluation of very thin-lamination sequences typically missed by standard triple-combo logs.
Uniquely suited for low-resistivity contrast pay
Dielectric logging provides the best insight in the reservoir when dealing with low-resistivity contrast pay. This could be due to the presence of fresh water, or under conditions of unknown or mixed water salinities (like steamflood recovery).
Value in combination
Integrated with total porosity, we derive flushed zone water saturation, Sxo. Unlike other Sxo measurements, the water saturation from dielectric measurement is not affected by water salinity, clay content, or rock textural parameters (m).
When combined with a shallow resistivity tool like the MSFL™ tool, the HFDT tool can provide a continuous cementation exponent “m.”
In combination with our MRIL® and GEM™ services, extremely accurate volumes of shale fluids can be calculated for unconventionals.
Measures water saturation in flushed zone (Sxo)
Measurement of irreducible water saturation in OBM (SWIRR)
Evaluation of thin beds
Evaluation of cementation exponent ”m”
Resistivity (Rxo) and dielectric constant of the flushed zone
The LOGIQ® HFDT is a pad type device that uses a Microwave
signal of 1 Gigahertz to measure the Bulk Volume of Water (BVW)
in the flushed zone. In combination with other porosity devices,
the BVW value helps to evaluate the amount of movable
Hydrocarbons in a reservoir. Also the high vertical tool resolution
aids in the evaluation of thin beds.