On the equality of resistivity fractal dimension and geometric relaxation time fractal dimension of induced polarization for characterizing Shajara Reservoirs of the Shajara Formation of the Permo-Carboniferous Unayzah Group, Saudi Arabia.

Conference Paper

AlKhidir, Khalid Elyas . 2017

• اسم المؤتمر: International Meeting On petroleum engineering , Singapore November 7- 8, 2017
• عنوان المؤتمر: Singapore
• تاريخ المؤتمر: الثلاثاء, تشرين الثاني (نوفمبر) 7, 2017

مستخلص المنشور

Sandstone samples were collected from the surface type section of the Shajara Formation of the Permo-Carboniferous Unayzah Group for detailed reservoir characterization. Capillary pressure experiment was performed to contact porosity and permeability was derived from the Data. Resistivity was calculated from the distribution of pores and the fractal dimension was proven from the relationship between wetting phase saturation and resistivity. In addition to field observation and obtained results of fractal dimension, the Shajara reservoirs of the Shajara Formation of the permo-Carboniferous Unayzah Group were divided here into three fractal dimension units. The Units from base to top are: Lower Shajara Resistivity Fractal dimension Unit, Middle Shajara Resistivity Fractal Dimension Unit, and Upper Shajara Resistivity Fractal Dimension Unit. These units were also proved by geometric relaxation time of induced polarization fractal dimension. It was found that the resistivity fractal dimension is similar to the geometric relaxation time of induced polarization. It was also reported that the obtained fractal dimension speeds with increasing resistivity and relaxation time due to an increase in pore connectivity.