... functions analyzed are NPV and Np. The attributes levels and the associated probabilities are shown in Figures 1 and 2. The Figure 1 shows the three levels of uncertainty for Box-Behnken and the Figure 2 shows the five levels of uncertainty for Central Composite Design. On Case 1, Response Surface Curves...

... SPE Comparative Solution Project [10]. The reservoir model has 60 x 220 x 1 cells of dimensions 20 x 10 x170 ft. Three different maps of porosity/permeability have been considered; two heterogeneous scenarios (Cases 1 and 2) and a homogenous one (Case 3). Figures 3a and 3b illustrate the porosity...

... in narrow spaces since the fluid displacement takes place in a narrow eccentric annular configuration bounded by the circumferential surfaces of the drilled well and the steel casing 1 . Imperfect oil well cementing could produce weak and non-homogeneous cementituous material in the cement annulus...

... summarizes other properties of the simulated reservoir. Note that there is no actual skin: s = 0. 3SIMULATION CASE 1: INFINITE ACTING CONSTANT pwf The first set of runs was for bottom-hole pressure kept constant at 4,000 psi. Fig. 2 shows the different results for six different values of : 0, 1x10-4, 3x10...

... (5, 6) : Infinitesimal deformation theory holds. Domains of interest are fully saturated. geomechanics-reservoir simulator increment pore pressure simulator porosity case 1 shape function strain-induced permeability model reservoir characterization reservoir simulation flow...

... with a radius of 200 m. A well is drilled in the center of the reservoir, and is completed in the free gas zone. The saturation of the phases in the reservoir and the other parameters used in the studies are listed in Tables 1 and 2. RESULTS For the base case (CASE 1), we consider a reservoir permeability of 20...

... they produce; accordingly, oil and gas production is in general measured quite accurately and the errors in production data are small. drive index plot random error pvt measurement reservoir simulation systematic error calculation case 1 upstream oil & gas water influx pressure drop...

... wormhole reservoir surveillance production monitoring production control velocity profile oil rate cold production geometry pressure gradient production logging thickness upstream oil & gas typical velocity profile case 1 tube approximation scenario flow rate shear stress...