... characterization. A series of experiments were conducted on each salt rock to measure hydrogen permeability across an average pressure range of 100 to 1000 psi. The results highlight the significant impact of the Klinkenberg effect, where hydrogen slippage leads to an overestimation of measured permeability values...

... network scaling method geology rock type machine learning upscaling pcu-dl module accuracy architecture physics-constrained upscaling permeability value reservoir characterization pore segmentation equation representation sub-volume size permeability prediction du-dl constraint...

... fluid dynamics log analysis upstream oil & gas reservoir quality artificial intelligence permeability value hfu-4 machine learning flow in porous media clay content unconventional heterogeneous tight gas reservoir porosity reservoir permeability obaiyed field reservoir hfu-2 hfu-1...

... porosity equation cross plot petroleum engineer permeability value Field Introduction Sitra field is located in the Abu Gharadig Basin in the Western Desert, Egypt. The field is producing from both upper and lower Cretaceous reservoirs. The reservoir of interest in this study is Abu Roash-E...

... solution fully considers all impulses as well as potential interferences among them through suitable superposition. In-situ permeability values at all involved zones can be obtained through a combination of individual impulse analyses and systematic multiple impulse inversions. The new pressure transient...

... Abstract Permeability in tight sands and shale formations is a critical property that determines well performance, completion methods and field development strategies. Obtaining reliable permeability values in these reservoirs is challenging. Ultra low permeability and very strong...

... Abstract In many reservoir studies, anisotropic permeability is often ignored or considered to have only simple relationships. Often, permeability anisotropy is modeled only between the vertical and horizontal directions, while permeability values in a horizontal plane are considered equal...

... formations such as shales typically have permeability values in nano-Darcy range. It is not practical to measure the permeability of the shale samples by conventional steady state techniques because of very low flow rates and length of time required to reach the steady state condition. Therefore, unsteady...

... gas flow apparent permeability flow in porous media Fluid Dynamics momentum accommodation coefficient struchtrup shale sample molecular weight surface coverage permeability value equation permeability society of petroleum engineers Introduction Shale gas reservoirs has become...

... conditions and the previous analytical solutions are not applicable because they can only yield at best a single average apparent permeability value that depends on the testing pressure range. In fact, as mentioned in the introduction, this is the primary reason for the disagreement of results obtained...

... geomechanics unconsolidated formation permeability value upstream oil & gas artificial core triaxial stress surface equipment permeability porosity strength compressive strength experiment student paper contest rock strength sand consolidation Introduction Along with rising...

... to the other is often inevitable. Due to discrepancy between the methods it is difficult to select reliable permeability values in the reservoir characterization. In general, the NMR log provides a continuous permeability prediction compared to the other. In the second part of the paper it is attempted to use...

...-Oriented Modeling (POM) approach: the core model is populated with permeability values from core plugs and then upscaled to a log-equivalent support volume. Synthetic permeability curves estimated with the above techniques have been compared to synthetic permeability curves estimated without core-data...

... the boundary conditions for the local calculation of upscaled transmissibilities or diagonal permeability tensors. An iteration procedure assures consistency between the local and global calculations. As we proceed to coarser scales, permeability values at finer scales are fixed in order to ensure that fine...

...), and the time-of-flight (time information). Streamline-based history matching makes use of these two pieces of information to locate permeability values that lead to production mismatches, and to estimate the amount of correction required. Corrections can be performed (1) at field scale (using all streamlines...

... characterization kela 2 china information upstream oil & gas reservoir property reservoir model reservoir gas reservoir permeability value drilling permeability production rate porosity construction field development plan overpressured gas spe 77668 fracture workflow spe 77668 knowledge...

... this well. Using real examples, we show how to build synergy between reservoir engineers and production engineers. This work demonstrates the usefulness of reservoir simulation to help production engineers diagnose well operation problems. reservoir engineer permeability value permeability flow...

.... When we change the permeability values at the pilot points, then the permeability values of the surrounding gridcells are affected. In order to calculate the gradient, we now will need to honor the dependency of the permeability field on the few pilot points. The expression for the gradient...

... in inconsistent estimates of well and/or reservoir performance. In this paper, permeability values and evaluation methods, are discussed and verified with field data. It is shown how NMR derived permeabilities calibrated to MDT or comprehensive core data can be used to define well/reservoir performance...

... recovery capillary pressure wag inj normalized hysteresis saturation interfacial tension gridblock proceedings saturation profile saturation formulation three-phase capillary pressure permeability value spe 63150 permeability curve end-point saturation relative permeability normalized...