1
Petroleum Engineering 324 — Well Performance
Homework 6 — Analysis and Interpretation of a Pump Test Sequence
5 March 2003 — Due: Friday 7March 2003(turn in after exam)
Homework 6: Analysis and Interpretation of a Pump Test Sequence
READ THIS FIRST!
This problem consists of a pressure drawdown/buildup test sequence performed on a pumping WATER well (our campus water well). There are no "tricks" involved—this should be a straight-forward analysis/interpretation sequence. Be sure to perform all analyses—and cross-check/double-check your work whenever possible.
Given:
These attached data were taken from a pressure drawdown/buildup test sequence performed on our campus water well. The reservoir interval is a water sand at about 450 ft—the well is not stimulated and should not be damaged. The reservoir should be assumed to be homogeneous and infinite-acting.
Reservoir properties:
=0.25rw=0.36 ftct=6.5x10-6 psia-1h=23 ft
Water properties:
Bw=1.0 RB/STBw=1.0 cp
Production parameters:
Event / Durationof Event
(hr) / Pressure at Start
of Event
(psia) / Water
Flowrate
(STB/D)
1.Drawdown Test / ≈ 2.267 / pi=147.29 / 60
2.Buildup Test / ≈ 1.82 / pwf(t=0)=139.33 / 0
Summary Plots: (Drawdown/Buildup Test Sequences)
Petroleum Engineering 324 — Well Performance
Homework 6 — Analysis and Interpretation of a Pump Test Sequence
5 March 2003 — Due: Friday 7March 2003(turn in after exam)
Required Results — Pressure Drawdown Case
Required: Drawdown Case (Analysis of Water Well Test Data (TexasA&MUniversity))
You are to estimate the following:
Log-log analysis:
a.The wellbore storage coefficient, Cs.
b.The formation permeability, k.
Cartesian analysis of "early" time (wellbore storage distorted) data:
a.The pressure at the start of the test, pi.
b.The wellbore storage coefficient, Cs.
Semilog analysis of "middle" time (radial flow) data:
a.The formation permeability, k.
b.The near well skin factor, s.
c.The radius of investigation, rinv, at the end of radial flow.
Results: Drawdown Case (Analysis of Water Well Test Data (TexasA&MUniversity))
Log-log Analysis:
Wellbore storage coefficient, Cs= RB/psia
Formation permeability, k= md
Cartesian Analysis: Early Time Data
Pressure at start of test, pi= psia
Wellbore storage coefficient, Cs= RB/psia
Semilog Analysis:
Formation permeability, k= md
Near well skin factor, s=
Radius of investigation, rinv (end of radial flow)= ft
Petroleum Engineering 324 — Well Performance
Homework 6 — Analysis and Interpretation of a Pump Test Sequence
5 March 2003 — Due: Friday 7March 2003(turn in after exam)
Required Results — Pressure Buildup Case
Required: Buildup Case (Analysis of Water Well Test Data (TexasA&MUniversity))
You are to estimate the following:
Log-log analysis:
a.The wellbore storage coefficient, Cs.
b.The formation permeability, k.
Cartesian analysis of "early" time (wellbore storage distorted) data:
a.The pressure at the start of the test, pwf(t=0).
b.The wellbore storage coefficient, Cs.
Semilog analysis of "middle" time (radial flow) data:
a.The formation permeability, k.
b.The near well skin factor, s.
c.The radius of investigation, rinv, at the end of radial flow.
d.The extrapolated pressure, p*.
e.Average reservoir pressure, (MBH technique — if data are available)
Cartesian analysis of "late" time (boundary-dominated) data: "Muskat Plot"
a.Average reservoir pressure,.
Results: Buildup Case (Analysis of Water Well Test Data (TexasA&MUniversity))
Log-log Analysis:
Wellbore storage coefficient, Cs= RB/psia
Formation permeability, k= md
Cartesian Analysis: Early Time Data
Pressure at start of test, pwf(t=0)= psia
Wellbore storage coefficient, Cs= RB/psia
Semilog Analysis: (MDH and Horner analysis)
Formation permeability, k= md
Near well skin factor,s=
Radius of investigation, rinv (end of radial flow)= ft
Extrapolated pressure, p* (from Horner analysis)= psia
Average reservoir pressure, (MBH technique)= psia
Cartesian Analysis: Late Time Data ("Muskat Plot")
Average reservoir pressure,= psia
Petroleum Engineering 324 — Well Performance
Homework 6 — Analysis and Interpretation of a Pump Test Sequence
5 March 2003 — Due: Friday 7March 2003 (turn in after exam)
Drawdown Test Data
Data Functions: Pressure Drawdown Case
Point / t(hr) / pwf
(psia) / p
(psi) / p'
(psi)
1 / 0.005556 / 146.93 / 0.36 / 0.380
2 / 0.009722 / 146.68 / 0.61 / 0.597
3 / 0.012500 / 146.55 / 0.74 / 0.859
4 / 0.016667 / 146.28 / 1.01 / 0.967
5 / 0.021389 / 145.95 / 1.34 / 1.259
6 / 0.025000 / 145.79 / 1.50 / 1.378
7 / 0.033333 / 145.41 / 1.88 / 1.548
8 / 0.037500 / 145.16 / 2.13 / 1.552
9 / 0.041667 / 144.98 / 2.31 / 1.634
10 / 0.044722 / 144.84 / 2.45 / 1.606
11 / 0.052778 / 144.60 / 2.69 / 1.614
12 / 0.057500 / 144.44 / 2.85 / 1.740
13 / 0.062500 / 144.30 / 2.99 / 1.715
14 / 0.067500 / 144.17 / 3.12 / 1.717
15 / 0.074167 / 144.04 / 3.25 / 1.718
16 / 0.079167 / 143.86 / 3.43 / 1.762
17 / 0.083333 / 143.74 / 3.55 / 1.754
18 / 0.090556 / 143.72 / 3.57 / 1.779
19 / 0.095833 / 143.57 / 3.72 / 1.778
20 / 0.100000 / 143.48 / 3.81 / 1.856
21 / 0.104167 / 143.41 / 3.88 / 1.876
22 / 0.108333 / 143.34 / 3.95 / 1.877
23 / 0.112500 / 143.25 / 4.04 / 1.770
24 / 0.125000 / 143.07 / 4.22 / 1.877
25 / 0.133333 / 142.92 / 4.37 / 1.869
26 / 0.141667 / 142.82 / 4.47 / 2.066
27 / 0.158333 / 142.64 / 4.65 / 1.762
28 / 0.166667 / 142.47 / 4.82 / 1.745
29 / 0.175000 / 142.38 / 4.91 / 1.542
30 / 0.183333 / 142.40 / 4.89 / 1.743
31 / 0.191667 / 142.27 / 5.02 / 1.723
32 / 0.200000 / 142.18 / 5.11 / 1.709
33 / 0.208333 / 142.13 / 5.16 / 1.680
34 / 0.216667 / 141.95 / 5.34 / 1.633
35 / 0.225000 / 141.73 / 5.56 / 1.658
36 / 0.229167 / 141.95 / 5.34 / 1.615
37 / 0.237500 / 141.86 / 5.43 / 1.598
38 / 0.245833 / 141.84 / 5.45 / 1.565
39 / 0.266667 / 141.77 / 5.52 / 1.486
40 / 0.275000 / 141.66 / 5.63 / 1.447
41 / 0.283333 / 141.86 / 5.43 / 1.444
42 / 0.291667 / 141.59 / 5.70 / 1.544
43 / 0.300000 / 141.55 / 5.74 / 1.499
44 / 0.316667 / 141.46 / 5.83 / 1.423
45 / 0.333333 / 141.41 / 5.88 / 1.388
46 / 0.350000 / 141.34 / 5.95 / 1.238
47 / 0.366667 / 141.28 / 6.01 / 1.310
48 / 0.383333 / 141.21 / 6.08 / 1.252
49 / 0.400000 / 141.17 / 6.12 / 1.265
50 / 0.416667 / 141.12 / 6.17 / 1.278
Petroleum Engineering 324 — Well Performance
Homework 6 — Analysis and Interpretation of a Pump Test Sequence
5 March 2003 — Due: Friday 7March 2003 (turn in after exam)
Drawdown Test Data
Data Functions: Pressure Drawdown Case (Continued)
Point / t(hr) / pwf
(psia) / p
(psi) / p'
(psi)
51 / 0.433333 / 141.05 / 6.24 / 1.319
52 / 0.450000 / 141.03 / 6.26 / 1.499
53 / 0.466667 / 140.96 / 6.33 / 1.161
54 / 0.483333 / 140.94 / 6.35 / 1.133
55 / 0.566667 / 140.76 / 6.53 / 1.108
56 / 0.650000 / 140.61 / 6.68 / 1.062
57 / 0.733333 / 140.45 / 6.84 / 1.013
58 / 0.816667 / 140.43 / 6.86 / 0.967
59 / 0.900000 / 140.29 / 7.00 / 0.933
60 / 0.983333 / 140.24 / 7.05 / 0.955
61 / 1.066667 / 140.13 / 7.16 / 0.909
62 / 1.150000 / 140.07 / 7.22 / 0.936
63 / 1.233333 / 140.02 / 7.27 / 0.881
64 / 1.316667 / 139.97 / 7.32 / 0.924
65 / 1.400000 / 139.91 / 7.38 / 0.875
66 / 1.500000 / 139.86 / 7.43 / 0.846
67 / 1.583333 / 139.78 / 7.51 / 0.909
68 / 1.666667 / 139.77 / 7.52 / 0.870
69 / 1.750000 / 139.71 / 7.58 / 0.850
70 / 1.827778 / 139.64 / 7.65 / 0.890
71 / 1.916667 / 139.57 / 7.72 / 0.913
72 / 2.000000 / 139.57 / 7.72 / 0.891
73 / 2.083333 / 139.53 / 7.76 / 0.891
74 / 2.166667 / 139.53 / 7.76 / 0.867
75 / 2.258333 / 139.53 / 7.76 / 0.823
76 / 2.266667 / 139.50 / 7.79 / 0.851
Petroleum Engineering 324 — Well Performance
Homework 6 — Analysis and Interpretation of a Pump Test Sequence
5 March 2003 — Due: Friday 7March 2003 (turn in after exam)
Pressure Buildup Test Data
Data Functions: Pressure Buildup Case
Point / t(hr) / te
(hr) / Horner
Time / pws
(psia) / p
(psi) / p'(t)
(psi) / p'(te)
(psi)
1 / 0.004166 / 0.004158 / 545.17 / 139.57 / 0.24 / 0.260 / 0.263
2 / 0.008333 / 0.008302 / 273.05 / 139.82 / 0.49 / 0.538 / 0.541
3 / 0.012500 / 0.012431 / 182.36 / 140.07 / 0.74 / 0.753 / 0.759
4 / 0.017500 / 0.017366 / 130.54 / 140.36 / 1.03 / 1.074 / 1.084
5 / 0.021944 / 0.021734 / 104.31 / 140.58 / 1.25 / 1.202 / 1.216
6 / 0.029166 / 0.028795 / 78.73 / 141.03 / 1.70 / 1.522 / 1.544
7 / 0.033333 / 0.032850 / 69.01 / 141.23 / 1.90 / 1.590 / 1.617
8 / 0.038889 / 0.038233 / 59.29 / 141.44 / 2.11 / 1.810 / 1.845
9 / 0.045833 / 0.044925 / 50.46 / 141.79 / 2.46 / 1.912 / 1.955
10 / 0.050000 / 0.048921 / 46.34 / 141.97 / 2.64 / 1.934 / 1.981
11 / 0.054166 / 0.052902 / 42.85 / 142.09 / 2.76 / 2.024 / 2.077
12 / 0.058333 / 0.056869 / 39.86 / 142.26 / 2.93 / 2.039 / 2.097
13 / 0.062500 / 0.060823 / 37.27 / 142.42 / 3.09 / 2.086 / 2.169
14 / 0.066666 / 0.064761 / 35.01 / 142.56 / 3.23 / 2.101 / 2.166
15 / 0.070833 / 0.068687 / 33.00 / 142.67 / 3.34 / 2.101 / 2.160
16 / 0.075000 / 0.072598 / 31.23 / 142.82 / 3.49 / 2.103 / 2.175
17 / 0.079166 / 0.076494 / 29.64 / 142.89 / 3.56 / 2.061 / 2.137
18 / 0.083333 / 0.080378 / 28.20 / 143.05 / 3.72 / 2.025 / 2.101
19 / 0.087500 / 0.084248 / 26.91 / 143.18 / 3.85 / 2.092 / 2.192
20 / 0.091666 / 0.088103 / 25.73 / 143.27 / 3.94 / 2.081 / 2.188
21 / 0.095833 / 0.091946 / 24.66 / 143.36 / 4.03 / 2.072 / 2.157
22 / 0.100000 / 0.095775 / 23.67 / 143.41 / 4.08 / 2.043 / 2.146
23 / 0.104166 / 0.099589 / 22.76 / 143.52 / 4.19 / 2.029 / 2.119
24 / 0.108333 / 0.103391 / 21.93 / 143.59 / 4.26 / 2.017 / 2.115
25 / 0.112500 / 0.107180 / 21.15 / 143.66 / 4.33 / 2.027 / 2.090
26 / 0.117222 / 0.111458 / 20.34 / 143.74 / 4.41 / 1.994 / 2.156
27 / 0.125000 / 0.118467 / 19.14 / 143.90 / 4.57 / 1.971 / 2.066
28 / 0.129166 / 0.122202 / 18.55 / 143.92 / 4.59 / 1.992 / 2.086
29 / 0.137500 / 0.129636 / 17.49 / 144.02 / 4.69 / 1.961 / 2.082
30 / 0.141666 / 0.133333 / 17.00 / 144.10 / 4.77 / 1.898 / 2.066
31 / 0.145833 / 0.137018 / 16.55 / 144.17 / 4.84 / 1.906 / 1.994
32 / 0.150000 / 0.140690 / 16.11 / 144.24 / 4.91 / 1.881 / 1.983
33 / 0.154166 / 0.144348 / 15.70 / 144.28 / 4.95 / 1.856 / 1.992
34 / 0.162500 / 0.151629 / 14.95 / 144.37 / 5.04 / 1.882 / 1.993
35 / 0.166666 / 0.155251 / 14.60 / 144.42 / 5.09 / 1.862 / 1.947
36 / 0.170833 / 0.158860 / 14.27 / 144.46 / 5.13 / 1.849 / 1.928
37 / 0.179166 / 0.166041 / 13.65 / 144.55 / 5.22 / 1.772 / 1.933
38 / 0.183333 / 0.169614 / 13.37 / 144.60 / 5.27 / 1.785 / 1.921
39 / 0.187500 / 0.173175 / 13.09 / 144.62 / 5.29 / 1.777 / 1.931
40 / 0.191666 / 0.176723 / 12.83 / 144.71 / 5.38 / 1.761 / 1.907
41 / 0.204166 / 0.187296 / 12.10 / 144.80 / 5.47 / 1.688 / 1.865
42 / 0.208333 / 0.190797 / 11.88 / 144.82 / 5.49 / 1.727 / 1.816
43 / 0.213055 / 0.194749 / 11.64 / 144.84 / 5.51 / 1.706 / 1.883
44 / 0.216666 / 0.197762 / 11.46 / 144.91 / 5.58 / 1.678 / 1.838
45 / 0.220833 / 0.201228 / 11.27 / 144.96 / 5.63 / 1.694 / 1.766
46 / 0.225833 / 0.205371 / 11.04 / 144.98 / 5.65 / 1.690 / 1.744
47 / 0.229166 / 0.208124 / 10.89 / 145.03 / 5.70 / 1.644 / 1.817
48 / 0.233333 / 0.211555 / 10.72 / 145.05 / 5.72 / 1.569 / 1.686
49 / 0.238055 / 0.215430 / 10.52 / 145.07 / 5.74 / 1.532 / 1.657
50 / 0.245833 / 0.221780 / 10.22 / 145.11 / 5.78 / 1.565 / 1.608
Petroleum Engineering 324 — Well Performance
Homework 6 — Analysis and Interpretation of a Pump Test Sequence
5 March 2003 — Due: Friday 7March 2003 (turn in after exam)
Pressure Buildup Test Data
Data Functions: Pressure Buildup Case (Continued)
Point / t(hr) / te
(hr) / Horner
Time / pws
(psia) / p
(psi) / p'(t)
(psi) / p'(te)
(psi)
51 / 0.250000 / 0.225166 / 10.07 / 145.13 / 5.80 / 1.446 / 1.722
52 / 0.254166 / 0.228539 / 9.92 / 145.16 / 5.83 / 1.424 / 1.697
53 / 0.258333 / 0.231903 / 9.78 / 145.20 / 5.87 / 1.424 / 1.692
54 / 0.263611 / 0.236147 / 9.60 / 145.20 / 5.87 / 1.506 / 1.684
55 / 0.266666 / 0.238596 / 9.50 / 145.27 / 5.94 / 1.525 / 1.690
56 / 0.270833 / 0.241926 / 9.37 / 145.29 / 5.96 / 1.510 / 1.688
57 / 0.279166 / 0.248554 / 9.12 / 145.27 / 5.94 / 1.478 / 1.483
58 / 0.283333 / 0.251852 / 9.00 / 145.31 / 5.98 / 1.469 / 1.478
59 / 0.287500 / 0.255139 / 8.89 / 145.32 / 5.99 / 1.478 / 1.457
60 / 0.300000 / 0.264935 / 8.56 / 145.41 / 6.08 / 1.282 / 1.491
61 / 0.308333 / 0.271413 / 8.35 / 145.45 / 6.12 / 1.188 / 1.549
62 / 0.316666 / 0.277849 / 8.16 / 145.50 / 6.17 / 1.144 / 1.551
63 / 0.325000 / 0.284244 / 7.98 / 145.52 / 6.19 / 1.227 / 1.511
64 / 0.333333 / 0.290598 / 7.80 / 145.56 / 6.23 / 1.308 / 1.445
65 / 0.342500 / 0.297541 / 7.62 / 145.59 / 6.26 / 1.307 / 1.484
66 / 0.350000 / 0.303185 / 7.48 / 145.61 / 6.28 / 1.253 / 1.482
67 / 0.358333 / 0.309418 / 7.33 / 145.67 / 6.34 / 1.258 / 1.490
68 / 0.366666 / 0.315611 / 7.18 / 145.67 / 6.34 / 1.164 / 1.420
69 / 0.383333 / 0.327882 / 6.91 / 145.67 / 6.34 / 1.170 / 1.337
70 / 0.391666 / 0.333960 / 6.79 / 145.74 / 6.41 / 1.178 / 1.300
71 / 0.416666 / 0.351966 / 6.44 / 145.70 / 6.37 / 1.119 / 1.325
72 / 0.420833 / 0.354935 / 6.39 / 145.81 / 6.48 / 1.102 / 1.325
73 / 0.425000 / 0.357895 / 6.33 / 145.85 / 6.52 / 1.041 / 1.327
74 / 0.433333 / 0.363786 / 6.23 / 145.86 / 6.53 / 1.024 / 1.304
75 / 0.443889 / 0.371196 / 6.11 / 145.88 / 6.55 / 1.073 / 1.269
76 / 0.450000 / 0.375460 / 6.04 / 145.90 / 6.57 / 1.041 / 1.294
77 / 0.458333 / 0.381243 / 5.95 / 145.94 / 6.61 / 1.086 / 1.224
78 / 0.466666 / 0.386991 / 5.86 / 145.95 / 6.62 / 1.068 / 1.268
79 / 0.475000 / 0.392705 / 5.77 / 145.95 / 6.62 / 1.055 / 1.267
80 / 0.508333 / 0.415215 / 5.46 / 145.85 / 6.52 / 0.936 / 1.245
81 / 0.516666 / 0.420758 / 5.39 / 145.94 / 6.61 / 0.950 / 1.201
82 / 0.525000 / 0.426269 / 5.32 / 146.01 / 6.68 / 0.949 / 1.203
83 / 0.533333 / 0.431746 / 5.25 / 146.05 / 6.72 / 0.982 / 1.183
84 / 0.541666 / 0.437190 / 5.19 / 146.06 / 6.73 / 0.982 / 1.176
85 / 0.550000 / 0.442604 / 5.12 / 146.08 / 6.75 / 0.961 / 1.152
86 / 0.558333 / 0.447984 / 5.06 / 146.12 / 6.79 / 0.954 / 1.148
87 / 0.575000 / 0.458651 / 4.94 / 146.15 / 6.82 / 0.892 / 1.145
88 / 0.583333 / 0.463937 / 4.89 / 146.12 / 6.79 / 0.904 / 1.124
89 / 0.591666 / 0.469193 / 4.83 / 146.12 / 6.79 / 0.899 / 1.120
90 / 0.666666 / 0.515151 / 4.40 / 146.26 / 6.93 / 0.957 / 1.090
91 / 0.723611 / 0.548506 / 4.13 / 146.28 / 6.95 / 0.788 / 1.096
92 / 0.752222 / 0.564789 / 4.01 / 146.35 / 7.02 / 0.764 / 1.079
93 / 0.836944 / 0.611247 / 3.71 / 146.42 / 7.09 / 0.785 / 0.993
94 / 0.850000 / 0.618182 / 3.67 / 146.48 / 7.15 / 0.758 / 0.997
95 / 0.866666 / 0.626950 / 3.62 / 146.50 / 7.17 / 0.751 / 1.020
96 / 0.883333 / 0.635626 / 3.57 / 146.50 / 7.17 / 0.734 / 1.013
97 / 0.902777 / 0.645632 / 3.51 / 146.51 / 7.18 / 0.721 / 1.003
98 / 0.977777 / 0.683105 / 3.32 / 146.55 / 7.22 / 0.732 / 1.015
99 / 1.066666 / 0.725333 / 3.13 / 146.60 / 7.27 / 0.651 / 0.941
100 / 1.150000 / 0.762927 / 2.97 / 146.64 / 7.31 / 0.686 / 0.977
Petroleum Engineering 324 — Well Performance
Homework 6 — Analysis and Interpretation of a Pump Test Sequence
5 March 2003 — Due: Friday 7March 2003 (turn in after exam)
Pressure Buildup Test Data
Data Functions: Pressure Buildup Case (Continued)
Point / t(hr) / te
(hr) / Horner
Time / pws
(psia) / p
(psi) / p'(t)
(psi) / p'(te)
(psi)
101 / 1.233333 / 0.798730 / 2.84 / 146.69 / 7.36 / 0.637 / 0.973
102 / 1.316666 / 0.832868 / 2.72 / 146.73 / 7.40 / 0.629 / 0.932
103 / 1.400000 / 0.865455 / 2.62 / 146.77 / 7.44 / 0.584 / 0.933
104 / 1.477777 / 0.894560 / 2.53 / 146.82 / 7.49 / 0.607 / 0.993
105 / 1.566666 / 0.926377 / 2.45 / 146.84 / 7.51 / 0.600 / 0.938
106 / 1.662500 / 0.959067 / 2.36 / 146.86 / 7.53 / 0.583 / 0.923
107 / 1.733333 / 0.982222 / 2.31 / 146.88 / 7.55 / 0.579 / 0.876
108 / 1.816666 / 1.008435 / 2.25 / 146.91 / 7.58 / 0.582 / 0.888
Petroleum Engineering 324 — Well Performance
Homework 6 — Analysis and Interpretation of a Pump Test Sequence
5 March 2003 — Due: Friday 7March 2003 (turn in after exam)
Log-Log Plot (Pressure Drawdown Case)
Log-Log Plot: Pressure Drawdown Case—Pressure Drop and Pressure Drop Derivative Data
Petroleum Engineering 324 — Well Performance
Homework 6 — Analysis and Interpretation of a Pump Test Sequence
5 March 2003 — Due: Friday 7March 2003 (turn in after exam)
Early-Time Cartesian Plot (Pressure Drawdown Case)
Early-Time Cartesian Plot: Pressure Drawdown Case
Petroleum Engineering 324 — Well Performance
Homework 6 — Analysis and Interpretation of a Pump Test Sequence
5 March 2003 — Due: Friday 7March 2003 (turn in after exam)
Semilog Plot (Pressure Drawdown Case)
Semilog Plot: Pressure Drawdown Case
Petroleum Engineering 324 — Well Performance
Homework 6 — Analysis and Interpretation of a Pump Test Sequence
5 March 2003 — Due: Friday 7March 2003 (turn in after exam)
Log-Log Plot (Pressure Buildup Case — t Format (No Rate History))
Log-Log Plot: Pressure Buildup Case—Pressure Drop and Pressure Drop Derivative Data (t Format (No Rate History))
Petroleum Engineering 324 — Well Performance
Homework 6 — Analysis and Interpretation of a Pump Test Sequence
5 March 2003 — Due: Friday 7March 2003 (turn in after exam)
Log-Log Plot (Pressure Buildup Case — te Format (Includes Rate History))
Log-Log Plot: Pressure Buildup Case—Pressure Drop and Pressure Drop Derivative Data (te Format (Includes Rate History)
Petroleum Engineering 324 — Well Performance
Homework 6 — Analysis and Interpretation of a Pump Test Sequence
5 March 2003 — Due: Friday 7March 2003 (turn in after exam)
Early-Time Cartesian Plot (Pressure Buildup Case)
Early-Time Cartesian Plot: Pressure Buildup Case
Petroleum Engineering 324 — Well Performance
Homework 6 — Analysis and Interpretation of a Pump Test Sequence
5 March 2003 — Due: Friday 7March 2003 (turn in after exam)
Semilog Plot (Pressure Buildup Case — t Format (No Rate History))
Semilog Plot: Pressure Buildup Case — t Format (No Rate History)
Petroleum Engineering 324 — Well Performance
Homework 6 — Analysis and Interpretation of a Pump Test Sequence
5 March 2003 — Due: Friday 7March 2003 (turn in after exam)
Semilog Plot (Pressure Buildup Case — Horner Time Format (Includes Rate History))
Pressure Buildup Case: Horner Time Format (Includes Rate History)
Petroleum Engineering 324 — Well Performance
Homework 6 — Analysis and Interpretation of a Pump Test Sequence
5 March 2003 — Due: Friday 7March 2003 (turn in after exam)
Late-Time Cartesian Plot ("Muskat Plot") (Pressure Buildup Case)
Late-Time Cartesian Plot ("Muskat Plot"): Pressure Buildup Case
1