RESERVOIR ENGINEERING
1. Whether reservoir thickness and cross sectional area do not affect the RF at all during water-flooding?
2. Whether the cumulative oil production no more depends on injection rate or the pressure drop for a given mobility ratio, if a piston-like displacement is assumed?
3. Whether the injectivity (the rate at which fluid can be injected per unit difference in pressure between injection and producing wells) would remain as a constant as the flood front advances, when the fluid mobilities in the swept and unswept zones remains the same?
And, to what extent, the area of the swept zone as well as the well geometry (spacing, pattern & wellbore radii) remain sensitive in such cases?
Even otherwise, when the mobilities of the swept and unswept zones remain to be different, whether the flood front will move out from the injection well in a radial manner during the later part of the flood as well?
In other words, whether the injectivity changes would remain rapid only during the early part of the operation (followed by a gradual change until breakthrough occurs), when the mobility of the fluid injected into a reservoir remains to be different from the mobility of the reservoir fluid?
Whether the injectivity of any system can be approximated simply by dividing the pattern into segments of radial and linear flow and computing the total flow by combining the radial flow and linear flow equations which apply to individual segments?
Can we estimate the injectivity prior to breakthrough of the swept region into a producing well in the absence of the requirement on areal-sweepout data for the flood pattern?
Is it mandatory to take into account the effect of flow from outside the normal well network in order to estimate the injectivities of boundary patterns?
How exactly to estimate the breakthrough sweep efficiency required for calculating the injectivity after breakthrough? Or, Injectivity can be directly estimated after breakthrough simply by assuming that the flood front can be approximated by simple shapes and that the angle the swept region makes at the producing well remains to be proportional to the rate of flow from the swept region?
- Badges
- Science topic
- Similar topics
- Engineering
- Petroleum Engineering
- Oil