... of permeability by following a machine learning based approach. Firstly, a vast range of MICP test results (246 samples) related to tight sandstones is gathered with a permeability range of 0.001 to 70 millidarcy. After quality checking of dataset, different theoretical permeability models are tested...

... of such a permeability model as input for the SHM is. Our results highlight the best choices for an upscaled SHM input (upscaled) permeability- not necessarily the upscaled permeability used in history matching. Smallest errors are shown to be resulting from using geometrical or 1/3 power law upscaled permeability...

... through wireline logs. Several such correlations, namely SDR permeability and Timur-Coates permeability models using nuclear magnetic resonance (NMR) measurements, K-lambda using mineralogy, and other variants, have often been used, with moderate success. In addition to permeability, the determination...

..., the histogram of a simple, commonly used macro and micro pore cutoff values model is shown in Figure 1. log analysis ml algorithm permeability model Reservoir Characterization Upstream Oil & Gas pore throat size distribution machine learning Artificial Intelligence porosity pore-throat...

... Reservoir Characterization Fluid Dynamics spwla 59 machine learning Upstream Oil & Gas directional permeability model flow in porous media Imaging Artificial Intelligence Simulation NMR coupling carbonate rock sandstone diffusional coupling carbonate permeability model...

... of conventional NMR permeability models (e.g., the Schlumberger Doll Research (SDR) and Coates models) and a new NMR directional permeability model in fractured formations. We compared the estimated permeability of fractured carbonate rock samples using different NMR permeability models. Results show...

... Artificial Intelligence pore-scale image directional permeability machine learning Upstream Oil & Gas coates model porosity characteristic spwla 55 flow in porous media micro-ct image lbm directional permeability permeability model rock sample Symposium permeability...

... Abstract Most commonly used empirical NMR permeability models, such as the Timur-Coates or the geometric mean (e.g. T 2, gm ) model, are in simple mathematical forms, and rely on the assumption that linear or quasi-linear correlations exist between NMR relaxation time and pore throat size...

... in the paper. Prior to drilling, a synthetic permeability model was built for the Fensfjord formation to evaluate the relationship between saturation and permeability. To enhance the accuracy of the LWD magnetic resonance interpretation several iterations were carried out on the parameters used...

... to minimize the error or uncertainty propagation to the subsequent flow simulation. The commonly used cross-plot approach of porosity versus permeability is often found to be not sufficient. In this study, we present a physics-based permeability model incorporating capillary pressure data. The permeability...

..., but the cost and time required for the tests limit its use, often to a small number of discrete points. NMR logging, on the other hand, is acquired continuously. However, the commonly-used NMR permeability models, i.e., Coates model (1991) and geometric mean of relaxation time ( T 2GM Clearly...

... core analysis cutoff well logging clay sample NMR permeability model NMR porosity Upstream Oil & Gas porosity variable exponent clay line thinly bedded reservoir sandstone permeability model spwla 49th log analysis total porosity gas porosity Symposium permeability...

... permeability model spwla 49th BVI permeability well logging coates model porosity wir permeability estimation University A NEW APPROACH FOR OBTAINING SWIR FROM NMR LOG WITHOUT REQUIRING T2CUTOFF Songhua Chen, Jiansheng Chen, Mike Gillen, and Dan Georgi Baker Hughes, Houston, Texas, U.S.A. Copyright...

.... First approaches to developing a permeability model using log deaived measuremeu tsstemfromwhatis known as the Kozeny-Cannan relationship. 1 This . model assumes a simple bundle of tubes w Fluids follow various tortuous paths through tubes 0; varying cross seubnal area. With this simple structme...