AFA Documentation
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Linear Channel Flow

According to Ilbrahim and Wattenbarger [2006] This well has produced for more than, this well produced for more than 44 years without having a hydraulic fracture and is the only well in this reservoir. All analysis was done with an estimated constant flowing wellbore pressure of 800 psia. Geologically, it was also considered a single well pool.

The figure below shows the vs . This is comparable to Hyperbolic (Arps) and Flow Regime Identification but using rate normalized pressures (if pressures did not exist, the plot would have the same units at South Texas Example: Vertical Frac Well ). The straight line portion of the plot indicates linear flow dominates for about 18.2 yrs (or 6640 days according to the authors).

The linear flow in this scenario would represent channel flow , followed by PSS.

image-20241111-024820.png

References:

  • M. Ibrahim and R. A. Wattenbarger, “Rate Dependence of Transient Linear Flow in Tight Gas Wells“, JCPT, Technical Note, October 2006, Vol 45, No. 10.

  • ARÉVALO-VILLAGRÁN, J.A., WATTENBARGER, R.A., SA-MANIEGO-VERDUZCO, F., and PHAM, T.T., Production Analysis of Long-Term Linear Flow in Tight Gas Reservoirs: Case Histories; paper SPE 71516, presented at the SPE Annual Technical Conference and Exhibition, New Orleans, LA, September 30 – October 3, 2001.