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Keywords: objective function
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Proceedings Papers

Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 17–19, 2019
Paper Number: SPE-196629-MS
... objective function interaction parameter fraction molecule equation of state Upstream Oil & Gas petroleum fluid reservoir modeling correlation eos eos workflow uncertainty optimal number EOS model fluid characterization society of petroleum engineers Introduction Currently...
Proceedings Papers

Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 17–19, 2019
Paper Number: SPE-196643-MS
... to the Brugge field is presented in order to optimize the waterflooding strategy. Reservoir Characterization enhanced recovery waterflooding reservoir simulation machine learning neural network optimization artificial neural network sharpe ratio application objective function NPV Artificial...
Proceedings Papers

Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 17–19, 2019
Paper Number: SPE-196637-MS
... distribution functions (CDF) of the objective function (OF) of the full and reduced ensembles should be minimal. This allows the method to determine the smallest subset of realizations that both spans the range of uncertainties and provides an OF CDF that is representative of the full ensemble based...
Proceedings Papers

Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 17–19, 2019
Paper Number: SPE-196666-MS
.... The algorithm we present uses the approximate information of Jacobians achieved through composite-step computation, which eliminates the cost of direct calculation of Jacobians and Hessians (gradients). The gradient information that provides criticality measure of the objective function is calculated using...
Proceedings Papers

Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 17–19, 2019
Paper Number: SPE-196729-MS
... and then continued to a regional level. The primary objective function is consisted of oil and water production mismatches, and the plan is to upgrade the objective function to include more parameters for further model HM enhancements. Initially, the workflow was based on five uncertainty parameters. Ten...
Proceedings Papers

Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 17–19, 2019
Paper Number: SPE-196686-MS
... convergence machine learning optimization problem objective function amplitude society of petroleum engineers coefficient history matching multiplier uncertainty quantification permeability model discrete cosine transformation permeability Introduction The most common problem in reservoir...
Proceedings Papers

Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 17–19, 2019
Paper Number: SPE-196678-MS
... explore parameter space combined with the least squares single objective function. The process of AHM can adopt parameterization and realization methods to reduce inverse problems. In this study, realizations of various reservoir properties such as porosity, net to gross, relative permeability, horizontal...
Proceedings Papers

Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, May 8–10, 2017
Paper Number: SPE-185972-MS
... Abstract In field development and management, optimization has turned out to be an integral component for decision-making. Optimization involves computationally intensive complex formulations but simplifies making decisions. For reaching the optimal solution to a defined objective function...
Proceedings Papers

Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, May 8–10, 2017
Paper Number: SPE-186069-MS
... history matching neural network Uncertainty Assessment Sandstone Reservoir production forecasting society of petroleum engineers proxy workflow reservoir objective function giant multi-layered sandstone reservoir neuron multi-layered sandstone reservoir optimal ann Introduction...
Proceedings Papers

Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175590-MS
...-dimensional cubes and has the advantage of not requiring parameter tuning. The penalty method converts the constrained optimization problem into an unconstrained one by introducing an additional term, called a penalty function, to the objective function. These constraint-handling techniques are applied...
Proceedings Papers

Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175570-MS
... Gradient-based optimization methods use the information provided by the objective function derivatives to update the control variables. The gradient can be evaluated using methods based on finite difference approximation ( Yeten et al., 2004 ; Wang et al., 2009 ), although the computational cost...
Proceedings Papers

Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175646-MS
... is evaluated and the process loops with improving feasible solutions based on chosen pivot elements. Montes et al. (2001 ) applied GA for vertical well placement optimization and used the cumulative oil production as the objective function that needs to be maximized. In their work, they used two synthetic...
Proceedings Papers

Paper presented at the SPE Reservoir Characterization and Simulation Conference and Exhibition, September 16–18, 2013
Paper Number: SPE-165943-MS
... on the dynamics of both fluids systems. Application of ESA using the variables identified on stage 1, analyzing several simulation models and using an objective function to quantify the miss match from our ideal model. Optimization of the proposed wells, evaluation of areas with exploitation potential...
Proceedings Papers

Paper presented at the SPE Reservoir Characterization and Simulation Conference and Exhibition, September 16–18, 2013
Paper Number: SPE-165962-MS
... between packers), location of packers and ICDs flow area were simultaneously optimized to determine the best completion options for the candidate well using an objective function that included both; the value of oil and the cost of water. The ICD flow area per compartment was reverse engineered...
Proceedings Papers

Paper presented at the SPE Reservoir Characterization and Simulation Conference and Exhibition, September 16–18, 2013
Paper Number: SPE-165978-MS
... and monitoring plan have been defined accordingly to reduce the major impacting uncertainties. Artificial Intelligence Upstream Oil & Gas history matching Modeling & Simulation objective function variation spe 165978 multiplier reservoir simulation response factor gas injection...
Proceedings Papers

Paper presented at the SPE Reservoir Characterization and Simulation Conference and Exhibition, September 16–18, 2013
Paper Number: SPE-166008-MS
... Control Valves (ICVs), and their inflow settings is presented. The overall optimisation scheme uses the simulated annealing algorithm in conjunction with a commercial reservoir simulator to maximize an objective function that captures the mean and variance in the well's estimated value. Multiple...
Proceedings Papers

Paper presented at the SPE Reservoir Characterization and Simulation Conference and Exhibition, September 16–18, 2013
Paper Number: SPE-165990-MS
... parameter production history evolutionary strategy objective function experiment comprehensive approach society of petroleum engineers algorithm proxy model permeability Upstream Oil & Gas History adjustement match quality realisation Background Reliable production forecasting...
Proceedings Papers

Paper presented at the SPE Reservoir Characterization and Simulation Conference and Exhibition, September 16–18, 2013
Paper Number: SPE-166027-MS
... bounds of the objective function such that the objective function can be written in a different form, whereas in reality, the short-term and long-term optimization are performed with the same objective but different methods. The idea is then to solve a bi-objective optimization problem using an adjoint...
Proceedings Papers

Paper presented at the SPE Reservoir Characterization and Simulation Conference and Exhibition, September 16–18, 2013
Paper Number: SPE-166052-MS
... Completion Monitoring Systems/Intelligent Wells reservoir simulation property workflow flow area horizontal well flow control device modeling workflow wellbore length compartment control device uniform nozzle size compartment optimization problem objective function simulation model lwd...
Proceedings Papers

Paper presented at the SPE Reservoir Characterization and Simulation Conference and Exhibition, September 16–18, 2013
Paper Number: SPE-166051-MS
... oil recovery expectations using this automated workflow as the foundation. reservoir simulation constraint optimization problem injector scenario 2 scenario 1 decision variable enhanced recovery waterflooding objective function reservoir pressure VRR optimizer production rate base...

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