... scaling method resolution recovery difference reservoir property workflow permeability sub layer grid size ply sector model reservoir model ply model Introduction Reservoir upscaling and upgridding techniques have been developed in conventional oil and gas reservoirs. A large...

... Abstract Stochastic reservoir models generate large grids, sometimes in excess of millions of cells. These models need to be upscaled to reduce the number of grid blocks for practical flow simulations. As a consequence, the volumes of the upscaled simulation grids are represented...

... Fluid Dynamics Upstream Oil & Gas variation sensitivity fine grid production forecast average pressure datum outcrop model transmissibility reservoir simulation iptc 13680 Well Productivity coarse grid permeability distribution production well grid production performance water...

.... Publication rights are reserved. This is a pre-print and subject to correction. ABSTRACT The objective of this study is to develop an upscaling methodology for simulation of tracer injection in naturally fractured reservoirs. 2-D fine grid models that explicitly incorporate fractures are used to represent...

... to minimizing the difference or residual of a property used to measure the reservoir heterogeneity between the fine-grid and coarse-grid models. Figure 2 shows the concept of simulation layer optimization. In this example, the blue color represents the property defined from the static fine-layer model while...

... good results from a coarse grid simulation. It is absolutely necessary to upscale dynamic properties like relative permeabilities. The upscaled relative permeability curves, usually known as pseudofunctions, have been used in reservoir simulation for a long time, since the early analytical attempts...

... on the core-plug scale. To use this model, one would need to upscale this to a scale suitable for the various types of simulation. This would produce a representation of the reservoir properties of each gridblock. This is not feasible, however, because of the huge memory and processing requirements...

... 2 displacements in upscaled coarser grid reservoir models. Introduction Petroleum reservoirs are considered suitable for CO 2 storage and enhanced oil recovery because that they have geologic seal which have trapped hydrocarbons for a long period of time. The geological properties...

... fracture distributions. The fine-grid models are used to determine equivalent properties of the fractured systems, which, when included in conventional double porosity models, will result in a behavior similar to the fine-grid response. The upscaling methodology is based on flow simulation with constant...

... to be considered in this study. The reservoir consists of mostly thin sands in a non-pay background, with permeabilities in the sub milli-Darcy range. These reservoirs pose issues with simulation due to the low values and high contrast in permeability. Irrespective of any of our work on gridding and upscaling...

... from the fine grid dimensions. The analysis of these upscaled models gives us the best structural configuration and properties upscaling procedures for future numerical simulation studies. The reservoir characteristics associated to the complex geological environment, the diagenesis impact...

... Upstream Oil & Gas fast procedure reservoir simulation scaling method compositional simulation Abstract Single phase upscaling techniques have been in use for a number of years now to incorporate sub-grid reservoir description information into reservoir simulation. There have...

... reservoir simulation rock type 3 Artificial Intelligence dynamic reservoir property reservoir property low resolution model relative permeability dominant rock type capillary pressure Upstream Oil & Gas grid block resolution model upscaled model membership value porosity rock type...

..., removing a practical limitation of other combination methods of requiring new upscaling to be performed every time well location changes during any well optimization study. Modeling & Simulation property section effective transmissibility oil rate scaling method reservoir simulation...

... in flow simulators, without disregarding the accuracy over upscaling and an adequate simulation time. reservoir simulation karst grid domain matrix grid domain reference model complex reservoir grid domain simulation model block size Modeling & Simulation simulation time heterogeneity...

... of 0.1-0.3 m vertically and 30-100 m areally, resulting in reservoir models to the order of 10 7 grid cells. Recourse is made to upscaling in order to obtain coarsened but computationally efficient flow simulation models. The coarsened models commonly result in no more than 1-5% of the original grid...

... for an example), an input structured grid with a given cell size distribution is used for upscaling NFNs to fracture properties, and then the flow simulation is performed on the resulting dual continuum grid: the mesh of the input remains unchanged throughout the process. Hence, this practice does not account...

... flow properties of heterolithic sandstones ( Jackson et al., 2003 ). Upscaling methods impose further limitations on the value and usability of models within a multiscale setting. In conventional upscaling from a geological model to a reservoir simulation grid, the various approaches used cover a range...

... ABSTRACT: Geo-mechanical grid of reservoir simulations often contains coarse cells (×1 m thick) compared with the sub-metre resolutions of well log data. The geomechanical properties of the coarse cells are usually assumed to be representative of well log data although a rigorous upscaling...