1. Estimate formation permeability and skin factor from the draw-down test data given the following formation and fluid properties:q=90 STB/D; p¡=1479 psia; h=17 ft; ø= 25%; rw=0.21 ft;B=1.1 RB/STB; q=7.65 × 10-6 psi-l; and u=7.86 cp.DRAWDOWN TEST DATA FOR EXERCISE 2.1TimePressureTimePressure(hours)(psi)(hours)(psi)1283.810140.0239.811134.13214.512128.84196.613123.9182.814119.3171.515115.17162.016111.18153.817107.49.146.518103.9

Reservior parameters are:q = 90 STB/Dpi = 1479 psiah = 17 ft.ϕ = 25%rw = 0.21 ft.B = 1.1 RB/STBct =…

1. Estimate formation permeability and skin factor from the draw- down test data given the following formation and fluid properties: q=90 STB/D; Pi=1479 psia; h=17 ft; ø=25%; rw=0.21 ft; B=1.1 RB/STB; q=7.65 × 10-6 psi-l; and µ=7.86 cp. DRAWDOWN TEST DATA FOR EXERCISE 2.1 Time Pressure Time Pressure (hours) (psi) (hours) (psi) 1 283.8 10 140.0 2 239.8 11 134.1 3 214.5 12 128.8 4 196.6 13 123.9 5 182.8 14 119.3 6 171.5 15 115.1 7 162.0 16 111.1 8 153.8 17 107.4 9. 146.5 18 103.9

1. Estimate formation permeability and skin factor from the draw- down test data given the following formation and fluid properties: q=90 STB/D; Pi=1479 psia; h=17 ft; ø=25%; rw=0.21 ft; B=1.1 RB/STB; q=7.65 × 10-6 psi-l; and µ=7.86 cp. DRAWDOWN TEST DATA FOR EXERCISE 2.1 Time Pressure Time Pressure (hours) (psi) (hours) (psi) 1 283.8 10 140.0 2 239.8 11 134.1 3 214.5 12 128.8 4 196.6 13 123.9 5 182.8 14 119.3 6 171.5 15 115.1 7 162.0 16 111.1 8 153.8 17 107.4 9. 146.5 18 103.9

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter11: Compressibility Of Soil

Section: Chapter Questions

Problem 11.15P

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