TYPE CURVES FOR RECOVERY OF A DISCHARGING WELL WITH STORAGE

The analysis of water level recovery data is usually carried out using the straight line or late time solution. Recently Case et al. presented a method based upon the reversion of the series representing the exponential integral whereby recovery data could be analyzed if only two points were known on the recovery curve. This analysis was based upon the Theis equation and consequently subject to all of the assumptions to the Theis equation. Important of these assumptions is the lack of storage in the discharging well. Papadopulos and Cooper solved the problem and presented appropriate type curves for well recovery after instantaneous charge of water when the well contained storage. Fenske presented an extension of the Theis equation which considers both discharging and observation well storage. The simpler mathematics makes the derivation of type recovery curves for radial flow systems with discharging well storage readily feasible. It is found that as pumping time becomes very short relative to recovery time, the type recovery curves approach as a limit the curves of Cooper, et al. for recovery after instantaneous drawdown. Recovery data from a test at Dawsonville, Georgia, is used as an example. /Author/

  • Corporate Authors:

    Elsevier Science

    Radarweg 29, P.O. Box 211
    1043NX AE Amsterdam,   Netherlands 
  • Authors:
    • Fenske, P R
  • Publication Date: 1977-5

Media Info

  • Features: Figures; References;
  • Pagination: p. 341-348
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00157765
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 13 1977 12:00AM