... migration of hydrocarbons [12]. Due to its smaller molecular size (0.24 nm for H vs. 0.68 nm for CH the risk of hydrogen diffusion through the water-saturated caprock also needs to be addressed [13 15]. Additionally, hydrogen has a volumetric density eight times lower than methane [16], thus larger...

... characterization resistivity nubia formation water saturation irreducible water saturation pay and suitable production technique belayim marine field taha radwan low-resistivity reservoir low-resistivity pay zone petrobel resistivity reading low resistivity pay conductive mineral IDENTIFICATION...

... occurs, the area around the well drain was considered during simulation, and a factor reducing well productivity was introduced and applied as water saturation exceeding a threshold. This factor has been calibrated well by well as history match parameter. The threshold applied to water saturation around...

... amounts of water volume fraction, and at different pressure and temperature. Therefore, a random error has been generated for the simulated PNL curves to be used for the following uncertainty quantification in obtaining the desired water saturation and CH4-CO2 relative concentrations, mimicking future...

... water saturation value using a couple of parameters (" M " & " N ") that must be determined in the laboratory. Inaccuracies in the determination of such parameters may result in significant errors when estimating water saturation. Unlike the Waxman-Smits equation, the " M " & " N " parameters...

... and A are the thickness and cross-sectional area of the slices, j is the j-th slice porosity, Swj its water saturation, w is the resistivity of the saturant brine, and m and n are the two Archie exponents. We measure quantities j and Swj for each slice (i.e. for all j s) by using NMR. We also measure the overall...

... petrophysical interpretation [7] of a thin-layered reservoir, in order to evaluate the uncertainty associated to the most critical petrophysical properties, i.e. porosity and water saturation. The results proved that the approach was both robust and flexible enough to be applied to a specific interpretation...

... measurements are related to important petrophysical parameters (e.g. porosity, water saturation, and permeability). In detail, an automated screening can be performed aimed at detecting possible out-of-trend wells, and a homogeneous petrophysical revision carried out within a time-efficient template...

... ABSTRACT The cementation factor in carbonates varies considerably with rock properties and that effects the calculation of water saturation from resistivity logs significantly. Using constant values of cementation factor (m) may lead to inaccurate saturation profiles thus uncertainty...

... reservoir characterization water saturation production test upstream oil & gas dorra field sandstone reservoir production optimization pay zone interpretation egypt reservoir log analysis high heterogeneous sandstone reservoir low resistivity low contrast identification...

... & gas water saturation dynamic model reservoir simulator simulator porosity 1 HIGH-RESOLUTION RESERVOIR SIMULATOR AND TRANSMISSIBILITY UPSCALING AS A KEY TO RESERVOIR MODELLING OPTIMIZATION IN AN EXTRA-HEAVY OIL FIELD M. Albertini, M. Prisco, F. Villa, O. Kolyubaeva, M. Stefanucci, Eni S.p.A...

..., shaliness and water saturation from pre-stack seismic data. By exploiting the Bayesian inversion formalism, it is possible to propagate uncertainty from seismic to petrophysical properties, including the effect of noise on seismic data and the approximation of physical models. The results...

... ABSTRACT Saturation Height Modelling is a well-established and traditionally used reservoir characterization methodology based on the analysis of capillary pressure data to predict the initial water saturation of a reservoir, a parameter that greatly affects the hydrocarbon in place...

... water saturation saturation measurement water saturation fractional flow characterization saturation oil relative permeability injection flow rate flow in porous media permeability 1 USE OF X-RAY SATURATION MEASUREMENTS IN FLOW- THROUGH INVESTIGATIONS FOR THE CHARACTERIZATION OF TWO...

... ABSTRACT: Determination of hydrocarbon saturation is the vital parameter in oil reserve calculation processes. Archie's formula is the water saturation model for the determination of hydrocarbon saturation. The parameters of Archie's formula (a, m and n) are determined through laboratory core...

... prediction was develpoed which incorporate the pore space and pore throat. The obtained results have shown the great influence of pore throat on permeability prediction pore throat size distribution pore space size distribution water saturation porosity pore throat permeability prediction flow...

... a deep integration of logs, routine and special core analysis and dynamic data in order to predict the reservoir properties reducing uncertainties. Water saturation is one of the most critical parameters to define in these reservoirs and its sensitivity to some basic inputs like water formation...

... upstream oil & gas log analysis porosity sequence thinly-bedded interval scenario shl thickness evaluation log response petrophysical evaluation shale well logging resistivity equation water saturation society of petroleum engineers shale bed bed thickness fraction texas...

... to discuss the reasons of those discrepancies the reliability of both CPI and RFT should be verified. Main sources of uncertainties in CPI- in the determination of porosity and water saturation from well logs are the measurements, the selected models, and the input parameters related to the models...

... throats due its bridge like crystal growth. This results in high micro porosity and water saturation. RESERVOIR CHARACTERIZATION The main productive reservoir layer is E-Sand along with G and F-Sands. The reservoir pressure range 4978-5386 psi while the temperature ranges 330-355 F. The gas mainly...