Calculation of reservoir permeability coefficient based on fracture calibration test data

Authors: V.G. Salimov, O.V. Salimov (TatNIPIneft, RF, Bugulma)

Key words: fracture calibration test, permeability coefficient, modified Mayerhofer method, fracture closure.

This paper discusses the problem of calculating reservoir permeability coefficient based on fracture calibration test (minifrac) in Tatarstan oil fields. In case of long fracture closure time it is reasonable to use modified Mayerhofer method. This method is employed in MathCad package. It has been shown that the results obtained from Mayerhofer method, MinFrac code and empirical equation constitute a good match.

References

1. Economides M.J., Nolte K.G., Reservoir stimulation, Schlumberger educational services, 3rd edition, 1998.

2. Mayerhofer M.J., Ehlig-Economides C.A., Economides M.J., Pressure-transient analysis of fracture-calibration, SPE 26527, JPT, 47(3), 1995, pp. Р. 229-234.

3. Valkó P.P., Economides M.J. Fluid-leakoff delineation in high permeability fracturing, SPE 37403, SPE Production & Facilities, 1999, (5), pp. 117-133.

Key words: fracture calibration test, permeability coefficient, modified Mayerhofer method, fracture closure.

This paper discusses the problem of calculating reservoir permeability coefficient based on fracture calibration test (minifrac) in Tatarstan oil fields. In case of long fracture closure time it is reasonable to use modified Mayerhofer method. This method is employed in MathCad package. It has been shown that the results obtained from Mayerhofer method, MinFrac code and empirical equation constitute a good match.

References

1. Economides M.J., Nolte K.G., Reservoir stimulation, Schlumberger educational services, 3rd edition, 1998.

2. Mayerhofer M.J., Ehlig-Economides C.A., Economides M.J., Pressure-transient analysis of fracture-calibration, SPE 26527, JPT, 47(3), 1995, pp. Р. 229-234.

3. Valkó P.P., Economides M.J. Fluid-leakoff delineation in high permeability fracturing, SPE 37403, SPE Production & Facilities, 1999, (5), pp. 117-133.



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