The progress of existing geophysical techniques for the last years led to a wider scope problems resolved using this set tools. tools allow tackling pivotal tasks such as study lithology in geological section, correlation, evaluation saturation, porosity, permeability, and clay fraction, outlining oil-gas water-saturated layers. Complications emerging while resolving these directly depend on pe...

Since the development bloom in unconventional reservoirs in North America, total organic carbon (TOC) has become a more essential parameter, as the indicator of the efficiency of these reservoirs. In this paper, by using conventional well logs and NMR log data, the TOC content of an unconventional reservoir in West Africa is estimated. Passy’s, Issler’s, and Schmoker’s methods were used as indi...

The Horus field is considered one of the most important hydrocarbon producers within Alamein basin, Western Desert Egypt. This area was affected by different tectonic movements throughout geological history. re-evaluation and characterization area, especially its main reservoirs Lower Bahariya, middle upper AR/G Dolomite units, because low production oil tend (only 1100 BBD). Despite this, basi...

Development of the Hugoton field model has required automated processing of large data volumes at several steps, including prediction of lithofacies from geophysical well logs in numerous wells based on a neural network trained on log-facies associations observed in cored wells, generation of geologic controlling variables (depositional environment indicator and relative position in cycle) from...

Spectral analysis is an important step in seismic data processing and interpretation. The frequency contents of seismic traces vary with time due to the fact that the earth is non-stationary medium. Methods were available to improve the temporal and spectral resolution, such as windowed Fourier transform, wavelet transform, S-transform and Matching Pursuit Decomposition, etc. This paper describ...

Attributes remain to be of the utmost importance for the characterization of seismic data. Especially in the scale-range where tuning effects play, the understanding of what is happening, and the subsequent technology to extract the proper attributes from the huge seismic data-volumes remains current. This study starts with the analysis of a set of typical petrophysical log shapes. These log sh...

Significant amounts of information are rapidly increasing in bulk as a consequence the rapid development unconventional tight reservoirs. The geomechanical and petrophysical characteristics wellbore rocks influence sweet non-sweet areas Using standard approaches, such data from cores commercial software, it is difficult costly to locate productive zones. Furthermore, apply these techniques well...

Integrated modelling, well correlation and petrophysical analysis were performed to characterize the reservoirs for optimum hydrocarbon using 3-D seismic reflection data suites of logs from Ataga 5, 7, 10 11 wells respectively in field, shallow offshore, Niger Delta Basin, Nigeria. The study revealed presence two viable bearing reservoirs, AT1 AT2 average values porosity, permeability, water sa...

Abstract Lower Miocene rift sediments of the Nukhul Formation are one prominent hydrocarbon producers in Gulf Suez basin. In this study, we focused on oil producing sandstones Abu Rudeis-Sidri Field, located east central Suez. is characterized by low amplitude seismic reflectors and represents youngest identified reflector (Lower Miocene) study area. Petrophysical assessment was carried out usi...

The Ensemble Kalman Filter (EnKF) has been successfully applied in petroleum engineering during the past few years to constrain reservoir models to production or seismic data. This sequential assimilation method provides a set of updated static variables (porosity, permeability) and dynamic variables (pressure, saturation) at each assimilation time. However, several limitations can be pointed o...