Distribution of pore pressure gradient for some deep formations in Iraqi oil fields

Abstract EN

Pore pressures are the fluid pressures in the pore spaces in the porous formations.

Interactive Petrophysic (IP) software is used to determined the pore pressure gradient from log data.

These data are (GR log, Bulk Density and Sonic log).

Surfer software is used to create the formation pressure distribution maps.

These maps show the pore pressure gradient (PPG) for sex formations in contour forms.

The formations are chosen depending upon the availability of formation in 11wells/11 fields.

These maps are provided the pore pressure distribution in middle and south of Iraq and eventually, give a clear imagination for high and low pressure regions for each formation separately.

Six formation are considered in this research, these formations which existed in early Cretaceous and late Jurassic (deep formations) are Shuaiba, Zubair, Ratawi, Yammama, Sulaiy and Gotnia.

Finally, the outputs of these software helps to explain the abnormal pressure location and their distribution for the formation under study, this assists to expected the drilling mud program for these Pore pressures are the fluid pressures in the pore spaces in the porous formations.

Interactive Petrophysic (IP) software is used to determined the pore pressure gradient from log data.

These data are (GR log, Bulk Density and Sonic log).

Surfer software is used to create the formation pressure distribution maps.

These maps show the pore pressure gradient (PPG) for sex formations in contour forms.

The formations are chosen depending upon the availability of formation in 11wells/11 fields.

These maps are provided the pore pressure distribution in middle and south of Iraq and eventually, give a clear imagination for high and low pressure regions for each formation separately.

Six formation are considered in this research, these formations which existed in early Cretaceous and late Jurassic (deep formations) are Shuaiba, Zubair, Ratawi, Yammama, Sulaiy and Gotnia.

Finally, the outputs of these software helps to explain the abnormal pressure location and their distribution for the formation under study, this assists to expected the drilling mud program for these formation.