A new well-test analysis technique that can be used in locating the flood-front position during secondary and/or tertiary recovery processes with the data taken on vertically fractured injection wells is described. In this new technique, the swept volume was idealized as an elliptic region with foci located at the tips of the fracture wings. The fluids flowing through the inner (swept-volume) and the outer (unswept-volume) regions were assumed to be slightly compressible, while the hydraulic diffusivity and mobility values for the inner and outer regions were considered to be different. The vertical fracture was treated as an infinite-conductivity fracture. The outer region is either of finite extent or extends to infinity. Furthermore, it is also assumed that the flood front does not have any width and assumes a stationary position during the testing period.
|Original language||English (US)|
|Number of pages||12|
|Journal||SPE Formation Evaluation|
|State||Published - Sep 1 1987|
All Science Journal Classification (ASJC) codes
- Process Chemistry and Technology