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Fracture Technologies The Effect of Condensate Banking on Production FracTech Work Shop June 2003

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Fracture Technologies Condensate Banking (From a fracturing point of view) For some time the fracturing industry has realized that condensate has an adverse effects on well productivityFor 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 successIn 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 designHowever, either with un-fractured wells, or with fractured wells condensate banking is seldom modelled or considered in frac design

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Fracture Technologies WellWhiz Models

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Fracture Technologies Rel Perm

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Fracture Technologies Condensate effects on 1.50 mD reservoir Gas rates Condensate rates

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Fracture Technologies Frac Lf=200 ft-16/20 3 Lb/ft 2

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Fracture Technologies Condensate Banking Time =0

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Fracture Technologies Condensate Saturation after 212 days

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Fracture Technologies Zoomed

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Fracture Technologies Condensate in the frac

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Fracture Technologies Gas Rate (unfractured), K=10 mD

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Fracture Technologies K=10 mD, 16/20 3 Lb/ft 2 Cumulative Rate

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Fracture Technologies K=10 mD, 20/40 1 Lb/ft 2 Cumulative Rate

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Fracture Technologies Cumulative Production (BCF)

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Fracture Technologies Conclusions Condensate banking can now be modelledCondensate banking can now be modelled Condensate banking necessitates fracture design with TSO and large proppantsCondensate banking necessitates fracture design with TSO and large proppants Condensate banking will have an effect on proppant flow back due to multi-phase effectsCondensate banking will have an effect on proppant flow back due to multi-phase effects

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One step equations Add Subtract Multiply Divide Addition X + 5 = -9 X + 5 - 5 = -9 -5 X = -14 -6 + X = -4 -6 + 6 + X = -4 + 6 X = 2.

One step equations Add Subtract Multiply Divide Addition X + 5 = -9 X + 5 - 5 = -9 -5 X = -14 -6 + X = -4 -6 + 6 + X = -4 + 6 X = 2.

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