Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Well Placement Optimization under Uncertainty with CMA-ES Using the
  Neighborhood   In the well placement problem, as well as in other field development
optimization problems, geological uncertainty is a key source of risk affecting
the viability of field development projects. Well placement problems under
geological uncertainty are formulated as optimization problems in which the
objective function is evaluated using a reservoir simulator on a number of
possible geological realizations. In this paper, we present a new approach to
handle geological uncertainty for the well placement problem with a reduced
number of reservoir simulations. The proposed approach uses already simulated
well configurations in the neighborhood of each well configuration for the
objective function evaluation. We use thus only one single reservoir simulation
performed on a randomly chosen realization together with the neighborhood to
estimate the objective function instead of using multiple simulations on
multiple realizations. This approach is combined with the stochastic optimizer
CMA-ES. The proposed approach is shown on the benchmark reservoir case PUNQ-S3
to be able to capture the geological uncertainty using a smaller number of
reservoir simulations. This approach is compared to the reference approach
using all the possible realizations for each well configuration, and shown to
be able to reduce significantly the number of reservoir simulations (around
80%).

22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org