Improvement of Measurement and Interpretation of LLD Resistivity Log in the Polish Cases of Groningen Effect Formations
S. Baudzis and J. Jarzyna
Event name: 80th EAGE Conference and Exhibition 2018
Session: Poster: Petrophysics A
Publication date: 11 June 2018
Info: Extended abstract, PDF ( 5.5Mb )
Price: € 20
Inflated values of true resistivity Rt measured by Dual Laterolog probe are still the problem for log analysts to determine proper water saturation value. Most often the erroneously high deep resistivity reading, known as the Groningen effect, appears in the series of the evaporative deposits.These anomalous high resistivity records from Dual-Laterolog were a serious problem in time where methods to eliminate this phenomenon were not widely available.The article describes the case study of the Polish solutions of the Groningen effect problem in the last few years provided by Geofizyka Torun SA as the well logging service company in Poland.