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...

Machine learning is an important part of the data science field. In petrophysics, machine algorithms and applications have been widely approached. this context, Vietnam Petroleum Institute (VPI) has researched deployed several effective prediction models, namely missing log prediction, fracture zone density forecast, etc. As one our solutions, VPI-MLogs a web-based deployment platform which int...

Shear and Compressional Wave Velocities along with other Petrophysical Logs, are considered as upmost important data for Hydrocarbon reservoirs characterization. Shear Wave Velocity (Vs) in Well Logging is commonly measured by some sort of Dipole Logging Tools, which are able to acquire Shear Waves as well as Compressional Waves such as Sonic Scanner, DSI (Dipole Shear Sonic imager) by Schlumbe...

Petrophysical properties of 585 rock samples from the Suhbaatar-Ulaanbaatar-Dalandzadgad geophysical profile in Mongolia are presented. Based on the rock classifications and tectonic units, petrophysical parameters (bulk density, magnetic susceptibility, intensity of natural remanent magnetization, and Köenigsberger ratio) of these rocks are summarized. Results indicate that (1) significant den...

Abstract We investigated the source rock potential, sequence stratigraphy, and characterized hydrocarbon reservoirs at Otumara field, Niger delta, using integrated 3D seismic, wireline log analysis, basin modeling. The burial history thermal maturity were modeled, delineated, petrophysical parameters also estimated from logs. Passey “ΔLog R ” method for estimating preliminary evaluations of tot...

Abstract The Coniacian–Santonian Matulla Formation is one of the important reservoirs in July oilfield, Gulf Suez Basin. However, this formation characterized by uncertainty due to complexity reservoir architecture, various lithologies, lateral facies variations and heterogeneous quality. These challenges, turn, affect effectiveness further exploitation along In work, we conduct an integrated s...

Abstract Although reservoir characterization has been carried out by many researchers on the sedimentary package of Bengal basin hydrocarbon province, integration petrophysical and seismic sequence-based evaluation is rarely taken into account. This paper focuses identification gas zones, reserve estimation new prospects in Srikail field within eastern fold belt integrating four wireline logs 2...

Petrophysical properties including volume of shale, porosity and water saturation are significance parameters for petroleum companies in evaluating the reservoirs determining hydrocarbon zones. These can be achieved through conventional petrophysical calculations from well logs data such as gamma ray, sonic, neutron, density deep resistivity. The logging operations targeted limestone Mishrif Ns...

3D modeling method is divided into geospatial modeling and 3D geological modeling. 3D geological modeling technique has become a favorable tool for people to observe and analyze the geological body enriched in mineral resources. Unlike geospatial modeling, 3D geological modeling must consider various geological conditions affecting spatial shape and petrophysical distribution of geological body...