Model ID: 468
In layered sedimentary sequences confining units often sandwich viable reservoirs. If the confining units create less than perfect seals, fluids from an overlying reservoir can leak into the pumped reservoir below it. Often the pumping from the lower reservoir does not change flow in the unpumped one above. In these cases the leakage through the imperfect confining unit can be modeled as a distributed source of fluid to the lower reservoir, in the same fashion as recharge or precipitation.
The analysis here builds on the example “Fluid Flow to Wells: Finite Radius Well” to simulate pumping from a leaky aquifer. The results are compared to the analytic problem of Hantush and Jacob.