The purpose of seismic reservoir characterization is to predict the spatial distribution subsurface rock properties from a set direct and indirect measurements. Commonly, property volumes are obtained in two-steps approach. First, elastic inverted reflection data then used compute by applying calibrated physics models. Such an approach not only time consuming but may also lead biased results as...

Going through the development more than forty years, the overall water-cut to Daqing Oilfield has almost reached 90%. But there is still considerable residual oil in the place. Reservoir engineers want to know the residual oil spatial distribution and how to dig it. This requires large-scale reservoir simulation within limited time. Enlarged scale and highly expected efficiency need higher tech...

flow unit characterization plays an important role in heterogeneity analysis and reservoir simulation studies. usually, a correct description of the lateral variations of reservoir is associated with uncertainties. from this point of view, the well data alone does not cover reservoir properties. because of large well distances, it is difficult to build the model of a heterogenic reservoir, but ...

Background The SimTech Cluster of Excellence [1] studies multi-scale and multi-field simulation methods. These methods aim for combining different scales (e.g. cells, tissue, bone, skeleton) and different scientific fields (e.g., chemistry, biology, and physics) into one overall simulation. The Institute of Architecture of Application Systems (IAAS) has built a workflow management system that i...

Much work is being conducted in the area of business process modeling using workflow technology. HiWorD is a hierarchical workflow modeling prototype with simulation capability. It models business processes using Petri nets in a hierarchical manner and implements recovery transitions as a technique to recover from exceptions. The workflow hierarchy is created by refining places and transitions ...

A viable means of CO2 reduction in the atmosphere is to capture and concentrate CO2 from large point sources such as power plants and petroleum refineries and store it by underground injection. The main concern for commercial scale CO2 sequestration in geologic formations is the uncertainties associated with this process. The risks involved in different stages of a CO2 sequestration project are...

Standard operating policy and hedging policies are commonly used for reservoir operation for municipal or irrigation water supply. Application of these policies to hydropower reservoir operation is complex. In this paper, new standard operating policies and standard hedging policy are proposed for hydropower reservoir operation. The newly proposed policies were applied to the operation of Indir...

The radon simulation model has been used to simulate radon concentration response during production drawdown and two flowrate transient tests in vapor-dominated systems. Comparison of model simulation with experimental data from field tests provides insight in the analysis of reservoir phenomena such as propagation of boiling fronts, and estimates of reservoir properties of porosity and permeab...

This work proposes a mechanism to integrate different types of processes into a common gis-based simulation engine and, in particular, how to handle business processes described as workflows. In this sense, the paper presents the simulation process approach adopted, describes a method for mapping a workflow into the simulation process and it identifies which information needs to be added to the...

 Production data analysis techniques have been widely used for estimating reservoir properties such as gas in place and average pressure. Knowledge of this information is crucial for proper reservoir management. The present study discusses the roadmap, challenges and uncertainties for analyzing production data in an Iranian gas-condensate offshore field. This work is an integrated study in...