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The Effect of Condensate Banking on Production

The Effect of Condensate Banking on Production. FracTech Work Shop June 2003. Condensate Banking (From a fracturing point of view). For some time the fracturing industry has realized that condensate has an adverse effects on well productivity

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The Effect of Condensate Banking on Production

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  1. The Effect of CondensateBanking on Production FracTech Work Shop June 2003

  2. Condensate Banking (From a fracturing point of view) • For some time the fracturing industry has realized that condensate has an adverse effects on well productivity • In some cases, fracturing was applied to overcome condensate banking around the well, with some success • However, either with un-fractured wells, or with fractured wells condensate banking is seldom modelled or considered in frac design

  3. WellWhiz Models

  4. Rel Perm

  5. Condensate effects on 1.50 mD reservoir Gas rates Condensate rates

  6. Frac Lf=200 ft-16/20 3 Lb/ft2

  7. Time =0 Condensate Banking

  8. Condensate Saturation after 212 days

  9. Zoomed

  10. Condensate in the frac

  11. Gas Rate (unfractured), K=10 mD

  12. K=10 mD, 16/20 3 Lb/ft2 Cumulative Rate

  13. K=10 mD, 20/40 1 Lb/ft2 Cumulative Rate

  14. Cumulative Production (BCF)

  15. Conclusions • Condensate banking can now be modelled • Condensate banking necessitates fracture design with TSO and large proppants • Condensate banking will have an effect on proppant flow back due to multi-phase effects

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