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Multifrequency Dielectric Scanner from Schlumberger


Schlumberger launched a Dielectric Scanner multlifrequency dielectric dispersion service recently.

This service offers new petrophysical measurements for enhanced hydrocarbon saturation computation. The Dielectric Scanner allows for the direct control of water volumes for accurate reservoir evaluation and management.

"The Dielectric Scanner service is the first in the industry to accurately quantify residual hydrocarbon volume, Archie's exponents and formation CEC," said Catherine MacGregor, president, Schlumberger Wireline.

"With a precise measurement of water volume and rock texture, the service has enabled operators to enhance hydrocarbon production in carbonate, shaly sand and heavy oil reservoirs in both exploration and development environments."

Schlumberger has successfully completed more than 250 tasks in 20 countries across the world providing continuous measurement of dielectric dispersion for precise petrophysical interpretation.

In Saudi Arabia, Schlumberger has concluded a two-year pilot project for Saudi Aramco to study use of the Dielectric Scanner multifrequency dielectric dispersion service in reservoir monitoring applications.

A total of 35 logs have been recorded in various fields, both on land and offshore, to assess water flooding sweep efficiency as an aid to field development planning.

The study results have shown the technology capable of determining oil saturation independent of water salinity, while achieving efficiency gains over previous monitoring methods. Saudi Aramco and Schlumberger are now working together to expand the use of dielectric logs in heavy oil and shaly sand environments.

The use of multifrequency dielectric dispersion science is unique in the industry, according to the company. Used in conjunction with traditional logging measurements, it is now possible to determine residual oil saturation in carbonate reservoirs, hydrocarbon volume in low-resistivity or low-contrast shaly and laminated sand formations, and hydrocarbon volume and mobility in heavy oil reservoirs.