--> Abstract: *Innovation in Horizontal Wells Petrophysical Evaluation, A Case Study from Kuwait, by A.I. Elsherif, W. Bryant, A. Al Mershed, H. Al-Zuabi, K. Al-Failakawi, and S. Nair, #90188 (2014)

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*Innovation in Horizontal Wells Petrophysical Evaluation, A Case Study from Kuwait

A.I. Elsherif1, W. Bryant2, A. Al Mershed2, H. Al-Zuabi2, K. Al-Failakawi2, and S. Nair2

2Kuwait Oil Company


The oil industry has been dealing with logging data based on a vertical hole geometry for decades. In a vertical hole, usually the deep resistivity measurement is often used as Rt for saturation calculation. This is true in most cases unless we are crossing a bed boundary or we have a very deep mud filtrate invasion. In a horizontal hole, several factors are affecting the formation resistivity measurements. One factor to mention here is the adjacent bed resistivity effect. Moreover, when the well trajectory is cutting a bed boundary at a high angle, polarization horns are affecting the measurement and causing severe noise that masks the formation true resistivity.


AAPG Search and Discovery Article #90188 ©GEO-2014, 11th Middle East Geosciences Conference and Exhibition, 10-12 March 2014, Manama, Bahrain