A Two-Staged Approach to Simulate
the Inter-Well Reservoir
Property Parameters
By
Guoqing Feng1, Jun Chen1, Liehui Zhang1, Heng Hu2
(1) Southwest Petroleum Institute, Nanchong, China (2) Dagang oil company, Dagang, China
A two-staged simulation
is applied to simulate the distribution of
inter-well
reservoir
property parameters. At first stage, the Boolean
simulation
method is adopted to establish the model of the inter-well distribution of
sandstone and shale; Then on the basis of this model, the simulated annealing
method is applied to characterize the inter-well distribution of rock property
parameters. The problem about the linkage of the Boolean
simulation
and the
Simulated anneal
simulation
has been satisfactorily solved in this paper. As a
result, the Boolean
simulation
result can be directly input to guide the
Simulated anneal
simulation
. A case
study
was given in this paper and the
results showed that it had great advantage over ordinary methods in
heterogeneity characterization of inter-well
reservoir
property parameters. In
order to make use of the original data effectively, a forward model is proposed.
In
simulation
, the original well logging data was used to generate the
distribution fields of logging data(such as GR and AC), then to calculate
inter-well
reservoir
property parameters such as porosity and permeability by
using the function of the logging signal related to
reservoir
property
parameters.