Type-curve analysis of pressure buildup from vertically fractured wells in low permeability reservoirs
Intercomp has developed a set of type curves for use in analyzing pressure buildup data from vertically fractured wells. The new curves account for the length of time the well was on production before it was shut-in for the buildup test. Estimates of permeability, fracture half-length, and fracture conductivity are given from pressure buildup analysis using the curves. We found that the results from Horner analysis of pressure buildup data from vertically fractured wells are affected by the length of time a well was on production prior to starting the buildup test. Long dimensionless flow times are needed for the Horner straight line to develop. This means that extremely long flow times are needed for Horner analysis to be used on pressure buildup data from massive hydraulic fractured wells in low permeability reservoirs. Several examples are given of analyzing pressure buildup data using the new type curves.
- Research Organization:
- Intercomp Resource Development and Engineering, Inc., Denver, CO (USA)
- DOE Contract Number:
- AC19-79BC10106
- OSTI ID:
- 5312907
- Report Number(s):
- DOE/BC/10106-28; ON: DE82010513
- Country of Publication:
- United States
- Language:
- English
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