Production strategy from a hydrocarbon reservoir plays an important role in optimal field development in the sense of maximizing oil recovery and economic profits. To this end, self-adapting optimization algorithms are necessary due to the great number of variables and the excessive time required for exhaustive simulation runs. Thus, this paper utilizes genetic algorithm (GA), and the objective...

The major oil industry upstream activities include the exploration, drilling, extraction, pipelines installation, and production of crude oil. In this paper, we develop a mathematical model to plan for theseoperations as a crude oil supply chain network design problem.The proposed multi-period mixed integer linear programming model entails both strategic (e.g., facility location and allocation)...

This paper presents a comparative study between different oil production enhancement scenarios in the Saadi tight reservoir located Halfaya Iraqi field. The exhibits poor petrophysical characteristics, including medium pore size, low permeability (reaching zero some areas), and high porosity of up to 25%. Previous stimulation techniques such as acid fracturing matrix acidizing have yielded this...

Well placement optimization is a significant task in oil field development which aims to find the optimal well locations by maximizing net present value (NPV) or other objective function. It highly nonlinear problem involving large number of variables. Despite lots work has been done on conventional reservoirs, tool for naturally fractured reservoir (NFR) still rare. Naturally reservoirs repres...

We explore the effects of individualand network-level negative word-of-mouth on the firm’s profits using an agent-based model and specifically, an extended small world analysis. We include both permanent strong ties within the social network, and changing, often random, weak ties with other networks. The effect of negative word-of-mouth on the Net Present Value (NPV) of the firm was found to be...

Conservation practices can maintain or enhance the quantity of ecosystem services realized by both private individuals and society. However, implementing these generally has costs that may exceed benefit received a economic agent, particularly if are immediate benefits accrue in future. This study presents framework to evaluate ranch-level financial incentives for grazing management results imp...

We evaluated the ability of NPV to suppress EMGd and EMGint in seven patients with severe COPD and five normal subjects. Subjects were studied either without (A) or with mouthpiece and nose clip (B). Electromyographic suppression was assessed comparing EMG activity during NPV with the control activity without a mouthpiece and prior to the initiation of the NPV run. In normal subjects, in A, NPV...