... treatments in reservoirs with two layers of different permeability but the same initial skin factor and with the same permeability but very different skin factor. MAPDIR reduces overall skin factor fastest but at the cost of injection of large volumes of acid into the higher-injectivity layer. Particulate...

... For the second fracture case, let us assume that we have the same system as in the previous one, except for a tenfold increase in the permeability of each fracture zone. The derivative for this case, as shown in Fig. 4 , is slightly lower than that of first fracture case. For the third...

... unequal initial pressure permeability wellbore pressure crossflow parameter layer 2 commingled reservoir initial pressure synthetic data basic data reservoir layered reservoir Introduction Pressure-transient data from layered reservoirs used alone in analyses are highly non-unique...

... efficient and accurate means of modeling fractured reservoirs. The formulation developed can easily be extended to other recovery processes by modifying existing single porosity simulators. fracture transient flow spe 28001 matrix subgrid permeability reservoir simulation experimental data dual...

... Abstract Relative permeability is a critical parameter in reservoir engineering calculations and performance predictions using numerical simulation. Little has been published on the effect of core-scale heterogeneities on relative permeability. Small-scale rock heterogeneity can lead...

... sand and silts deposited during marine to brackish flooding events; (2) are easily recognizable in core but not on most logs; (3) have very low porosity and permeability; (4) prevent or deter vertical flow between reservoir compartments and act as baffles to flow; and (5) are the focus of diagenetic...

... noise pressure measurement drillstem/well testing spe 27972 information interpretation spe 27972 rock property permeability drillstem testing society of petroleum engineers artificial intelligence measurement error ambiguity interpretation Introduction There are several sources...

...), faults (both seismically identifiable and sub-seismic faults), flow-units or facies bodies (position, orientation and size), and the spatial distribution of the relevant petrophysical parameters (permeability, porosity, saturations, …) within each flow-unit. Although some "hard" data from seismic...

... and tabulated in Table 1 . The purpose of the examples is to illustrate that, regardless of the level of natural fracture permeability development, the open-hole completions studied during GRI research efforts outperformed hydraulic fracture completions. The greater gas deliverability was due to lack...