The industry in recent decades, due to the demand for reliable reservoir performance predictions. Progress in electronic computing hardware and significant improvement in numerical analysis methods have been two important factors in the results obtained in numerical reservoir models, such models have made an important contribution to improving oil recovery. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an Original Essay Reservoir models are used to understand and predict reservoir performance. One of the most important activities during the oil field development and management process is the historical matching process. Matched models are key to enabling reliable future predictions and give insight into the level of understanding of geological and reservoir models. Depending on the available field production data and the complexity of a reservoir, the history matching process can be time consuming. To obtain a matched model, some modifications can be made to the geological and reservoir models, mainly in those attributes with greater uncertainty, for example relative permeability curves, its distribution across the reservoir and other parameters with few samples. One of the objectives of this work is to perform historical matching on the Zhaozhouqiao oil field, specifically in the Zh86 block, using Schlumberger's Petrel-RE 2014 simulation software. Historical matching will be done on a trial and error basis by modifying some reservoir properties, endpoint scaling, and modeling and including the supporting aquifer into the system. The best historical match was obtained by modifying the critical water saturation (SWCR) in the system, modeling an aquifer support using the Carter Tracy Aquifer model, and modifying the horizontal and vertical permeabilities of the model. Once the history match is achieved, two prediction strategies are developed and compared, where we performed forward modeling to create a level of confidence in the reservoir model. Production indices; Water cut, water production, oil production, and oil rate of the wells and the field as a whole were predicted. Index results were presented versus time and analyzed. The results highlighted that the Zh86 block in the Zhaozhouqiao oil field is still very promising in terms of production. An uncertainty and sensitivity assessment was performed on the reservoir model to analyze the impact that certain reservoir properties have on volume calculations and simulation results in the model Zh86 block reservoir. You can see the impact of the uncertainty in our Sw and contact locations on the volume calculations in this model. Please note: this is just an example. Get a custom paper from our expert writers now. Get a custom essay The impact of grid resolution in positioning horizontal wells were also studied, a synthetic model of Block Zh86 was built by selecting the different grid resolutions both laterally and vertically, then the properties were fitted to the models and a well positioned beneath an impervious shale zone in each model to determine the optimal location. Using a model with fine grid resolution allows you to place the well in the best location in the reservoir model.
tags