In this study, a stochastic simulation method is used for heterogeneous reservoir
This suggests high concentration [Na.sub.2]C[O.sub.3] would lower the viscosity of ASP system and results in poor displacement efficiency in heterogeneous reservoir
of this low viscosity system, though it could produce ultra-low IFT.
According to the capillary number equation, if the injection can reduce the IFT to [10.sup.-3] mN/m, the highest recovery can be reached in homogeneous reservoirs [15-17], while, in the heterogeneous reservoir
, the mobility ratio plays an important role in spreading to the middle-low permeability layer.
Guoan et al., "Vertically heterogeneous reservoir
water flooding oil test," Journal of Southwest Petroleum University (Science & Technology Edition), vol.
Largest capillary number does not always make highest recovery in chemical flooding in heterogeneous reservoir
. Misuse of CDC in EOR included the ignorance of mobility ratio, Darcy linear flow hypothesis, difference between microscopic capillary number and the microscopic one, and remaining oil and residual oil.
To explain the mechanism of this phenomenon, we analyze the entire C[O.sub.2]-oil interaction process in heterogeneous reservoir
and provide our explanation in the next section.
Separate injection has better displacement effect than overall injection in serious heterogeneous reservoir
The aim of the study is to investigate the effect of depositional environments and lithofacies on sandstone diagenetic heterogeneity and to decipher the diagenetic evolution pathways of a heterogeneous reservoir
and its impact on hydrocarbon migration.
Hajizadeh, "Quad-tree decomposition method for areal upscaling of heterogeneous reservoirs
: application to arbitrary shaped reservoirs," Fuel, vol.
Evaluation of Plugging Ability in Heterogeneous Reservoirs
Moreover, infill wells are considered to be frequently used option in Pakistan because in this scenario these wells can be utilized further as injector wells for secondary and tertiary recovery, however in case of water floods these wells should be oriented properly to avoid excess production, this practice accelerates recovery in heterogeneous reservoirs
by improving continuity between injectors and producers highlighting this aspect is also a main objective of this paper.
(2) By applying this model from one single layer to multilayers, this method gives a quantitative expression of sweep efficiency of the three stages during waterflooding, which can be used to accurately calculate the sweep efficiency of heterogeneous reservoirs
and evaluate the degree of waterflooding in multilayer reservoirs.