This paper presents a review of history matching and oil field development optimization
techniques with a focus on optimization algorithms. History matching algorithms are …

Polymer flooding has been the most widely used chemical enhanced oil recovery (EOR)
method. The experience gained over the past decades from laboratory studies to project …

We consider a technique to estimate an approximate gradient using an ensemble of
randomly chosen control vectors, known as Ensemble Optimization (EnOpt) in the oil and …

Summary CO2-water-alternating-gas (CO2-WAG) flooding generally leads to higher
recovery than either continuous CO2 flooding or waterflooding. Although CO2 injection …

Ensemble-based history-matching methods have received much attention in reservoir
engineering. In real applications, small ensembles are often used in reservoir simulations to …

Abstract CO 2 water-alternating-gas (WAG) injection is an enhanced oil recovery method
designed to improve sweep efficiency during CO 2 injection with the injected water to control …

Ensemble-based history matching methods are among the state-of-the-art approaches to
reservoir characterization. In practice, however, they often suffer from ensemble collapse, a …

We consider robust ensemble-based (EnOpt) multiobjective production optimization of on/off
inflow-control devices (ICDs) for a sector model inspired by a real-field case. The use of …

With an increase in the number of applications of ensemble optimization (EnOpt) for
production optimization, the theoretical understanding of the gradient quality has received …

Abstract The application of Enhanced Oil Recovery (EOR) techniques are encouraged by
the current oil price and the growing global demand for oil. Optimizing oil production from …