Paper Information

Journal:   PETROLEUM RESEARCH   WINTER 2015 , Volume 24 , Number 80; Page(s) 170 To 174.
 
Paper: 

SHALE VOLUME ESTIMATION USING FMI IMAGE LOGS

 
 
Author(s):  EZATI M.*, SOLEIMANI B., KHOSHBAKHT F., MOAZENI M.S.
 
* DEPARTMENT OF EARTH SCIENCE, FACULTY OF GEOLOGY, SHAHID CHAMRAN UNIVERSITY OF AHVAZ, AHVAZ, IRAN
 
Abstract: 

Shale volume is one of the main parameters in petrophysical and reservoir studies. Using core to petrophysical parameter determination has some problems and limitations such as coring costs too much and normally it cannot be completely recovered (especially in fractured reservoirs). Image logs dominantly have been used for fracture analysis in Iran, while they have been used to a lesser extent in other fields such as shale volume calculation, porosity, sedimentary environment recognition, etc. In this study, the shale volume of Dalan formation was estimated by applying Binarization method to the FMI image log in one of carbonate reservoirs of the South Western oil fields of Iran. For the validation of suggesting approach, shale volume has also been estimated from GR log Index (CGR) and was compared with FMI shale volume. Shale volume resulted from FMI and CGR logs are compatible and shale volume determination using FMI has some errors caused by locating open fractures next to the shale interlayers.

 
Keyword(s): FMI, SHALE VOLUME, BINARIZATION, GR LOG, FRACTURE
 
References: 
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