... injection Upstream Oil & Gas spatial integration outer boundary fractured-basement reservoir reservoir society of petroleum engineers pseudo-steady state hydraulic diffusivity equation boundary wae ewae drillstem/well testing regime correction factor whittle-agarwal equation...

... on phase rates, as well as pressure and saturation distributions across the system is studied. flow in porous media drillstem/well testing compressibility outer boundary Artificial Intelligence Upstream Oil & Gas fractional derivative pressure distribution reservoir simulation oil phase...

..., it is found that, in both linear and radial multiphase systems, this constant or stabilized GOR is shown to be present regardless of condensate phase mobility at sandface conditions. PVT measurement specification GOR outer boundary Upstream Oil & Gas psia boltzmann variable drillstem/well...

... fractures that connect vugs with fractures. Initial and Boundary Conditions The initial pressure P i is assumed uniform for the three media throughout the reservoir (7) P F ( r , 0 ) = P V ( r , 0 ) = P M ( r , 0 ) = P i On outer boundaries, the same...

... G Constituent of boundary integral in Eq. 3 due to non-homogeneous boundary conditions, Appendix A g Acceleration due to gravity, L/t 2 H ( z-κ ) Heaviside unit-step function, equal to 1 for z ≥ k and 0 for z < κ h Pay thickness or location of outer boundary...

... the coefficients A n and B n remain to be determined from inner and outer boundary conditions. It is clear from general properties of Bessel functions that one must have B n = 0 for all n if the reservoir is unbounded; that one must have (A-18) B n = A n K 1 ( r e D...

..., a shear failure region was induced around the cavity. When fluid flowed through this system at increasing rates, the outer boundary of the shear failure zone was calculated to have increased, and a region of disaggregated solids was created adjacent to the cavity. Equations for convergent flow of a fluid...

... (for no-flow outer boundary) or steady state (for constant-pressure outer boundary) is reached. Figs. 8 and 9 , as well as Fig. 3 , show the influence of parameters C D and s on the dimensionless bottomhole pressure curves (in all calculations we assume s 1 = S 2 = s). During small t D (e.g. to 〈 C...

... SUMMARY A major objective of this paper is to present methods to determine the range of applicability of Horner and Miller-Dyes-Hutchinson analysis for a variety of reservoir shapes, outer boundary conditions, and producing times. This concerns limitations on the end of semilog data caused...

... with a constant pressure outer boundary and a central point sink has been developed. It can be demonstrated that with a pressure gauge of 1 psi resolution matrix permeabilities of less than 5 md and block sizes of less than 2 m can be detected. The theory has been used to evaluate RFT tests in a fractured...

... . . Drillstem Testing compressibility outer boundary phase boundary geothermal well drillstem/well testing Laplace transform pressure response finite system Upstream Oil & Gas semilog straight line boundary buildup region 2 radial discontinuity straight line permeability pressure transient...