Beauheim 1987 - Waste Isolation Pilot Plant - U.S. Department of ...

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Figure A-5. Semilog Slug-Test Type Curves Figure A-6. Early-Time Log-Log Slug-Test Curves 158
seventy percent recovery has occurred. For lesser degrees of recovery, log-log plotting techniques provide a more definitive type-curve match (Ramey et al., 1975). The type curves are placed over the test-data plots and translated horizontally with the horizontal axes coincident until the best possible match between the data and one of the type curves is achieved. In this position an arbitrary match point is chosen, and the corresponding values of a and p are read from the type curve, and t is read from the data plot. The transmissivity (T) is then calculated from the following rearrangement of Eq (A-31), using the coordinates of the match point: (A-33) The vertically averaged hydraulic conductivity. K, can be calculated from: K = T/b (A-34) where: b = thickness of tested interval, L. When static formation pressures are unknown, they may be approximated from flow-period or slug tests in the following manner. A log-log plot of (H,-H)/H, versus elapsed time is prepared, using a "best-guess" value of the static formation pressure to calculate H, and H. At late time, the data should become asymptotic to the (H,-H)/H, value of 1.0. If the data become asymptotic to a lower value, the "best-guess'' static formation pressureestimate was too high and should be revised downward. If thedataexceed the (H,-H)/H,value of 1 .O, the estimate was too low and should be revised upward. In general, Horner extrapolations of buildup data, when possible, provide greater resolution in estimating static formation pressures than do slug-test interpretations. A.3 PRESSURE-PULSE TEST ANALYSIS Pressure-pulse tests were first described by Bredehoeft and Papadopulos (1980). The solution technique is very similar to that developed by Cooper et al. (1967) for slug tests. The only difference between the two methods is that in a slug test the water level changes in a tubing string of radius rc, while in a pressure-pulse test water is only compressed in an isolated interval of the borehole. Analytically, the solution technique for pressure-pulse tests is the same as that derived for slug tests with the rc2 terms in Eqs (A-31). (A-32), and (A-33) replaced by V,C,pwg/n, where in consistent units: V, = volume of water within the pressurized section of the system, L3 C, = compressibility of water, LT*/M p, = density of water, M/L3 g = gravitational acceleration, L/T? With this substitution, and subject to the constraint that a 5 0.1 [see Eq (A-32)], the analysis proceeds as described above under Section A.2, Slug-Test Analysis. 159
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SANDIA REPORT SAND87 -0039 UC - 70
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SAND87-0039 Unlimited Release Print
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a transmissivity of about 7 x 10-2
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5 . TEST OBJECTIVES AND INTERPRETAT
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3-18 3-19 3-20 3-21 3-22 3-23 3-24
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5-35 H-l5/Culebra Drillstem and Slu
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5-78 5-79 5-80 5-81 5-82 5-83 5-84
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A-2 A-3 A4 A-5 A-6 Single-Porosity
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'H-6 o DOE-2 OHIPP-13 OAIPP 12 OH-1
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WlPP site. The aggregate thickness
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deep. The gamma-ray log used to gui
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3347.11 ft \ - -12.25-inch HOLE -8.
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~ 3409.6 n __ - - HOLOCENE DEPOSITS
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Ylf M (t -1wt 5 n nch REAMED BOREHO
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3418.96 n 7.875-inch REAMED BOREHOL
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2.375-inch TUBING 4.5-inch. 9.5 Ibl
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WELL CASING 2.375-inch TUBING TEST-
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1.5-Inch GALVANIZED PIPE WELL CASIN
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I I I I PRE-TEST STATIC PRESSURE i/
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(or areal extent) of the aquifer on
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:7001 J EQUILIBRATION / r.. .......
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Once straddle tests proved impossib
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1300 c - J PRE-TEST PRESSURE IN TES
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- < a m L: * m 3 L a I Start Date:
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uildups were caused by the natural
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TABLE 5-1 EFFECTIVE DST FLOW RATES
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TABLE 5-2 SUMMARY OF NON-CULEBRA SI
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simulation shown, however, uses a t
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1 .o 0.9 0.8 p' = 79.08 paig pi = 6
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~ ~~ TABLE 5-3 SUMMARY OF CULEBRA S
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Two factors raised questions about
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102 I I 1 1 1 W K 3 v) v) W K n v)
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5.2.2.21 below) and DOE-2 (Beauheim
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..A 225 - PRESSURE ABOVE TEST INTER
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10' n ui K 3 v) v) W a n v) v) 100
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10' MATCH PARAMETERS O n w a 3 v) v
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..CI__._._..__....__.I 5.2.2.6 H-15
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8.0 1 I I I MATCH PARAMETERS AP 1.0
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- 200 150 5 - EQUILIBRATION \Feu 'S
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4.0 1 I 1 1 3.0 I n 2.0 1 .o 0.0 0.
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1.0 0.9 0.8 0.7 0.6 0 0.5 0.4 0.3 0
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3.0 .hl c El2 2.0 . v n I P 1 .o MA
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EI€3- 0.9 "O I OOATA - TYPE CURVE
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4.0 I I I 3.0 MATCH PARAMETERS AP =
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1 .o 0.9 0.8 0.7 1 MATCH PARAMETERS
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1 .o 0.9 0.8 0.7 0.6 0 2 0.5 I 0.4
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1.0, 0 I 0.9 0.8 0.7 0.6 0.5 0.4 MA
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P-15 was bailed on four occasions i
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1 .o 0.9 0.8 - p’ = 78.93 prig p,
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Two type-curve matches are shown wi
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0 5 I ELAPSED TIME. hours Figure 5-
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10’ 1 I I I n a w 5 100 v) v) W a
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MATCH PARAMETERS -ip 10 PSI 150 t 1
Page 108 and 109: Considering that all other pumping
Page 110 and 111: I ,EQUILIBRATION BUILDUP Elapsed Ti
Page 112 and 113: 0 9. w 10’ K =a 100 v) v) W a n v
Page 114 and 115: 10’ I I I a J P 100 v) v) W a n v
Page 116 and 117: ~ ~. SLUG t i /- i 3 Start Date 07
Page 118 and 119: Figure 5-94 is a log-log plot of th
Page 120 and 121: was followed by a 92-minute FBU. Th
Page 122 and 123: 10’ 1 1 1 1 a n w’ a = 100 v) v
Page 124 and 125: and anhydrite, and were not conside
Page 126 and 127: 4.0 MATCH PARAMETERS .A. L. 21% 3.0
Page 128 and 129: Estimates of the static formation p
Page 130 and 131: 10’ n w 2 100 v) v) w a P v) v) w
Page 132 and 133: OWIPP-28. 70 OWIPP-27.650 OWIPP-30.
Page 134 and 135: to Nash Draw where no halite is pre
Page 136 and 137: observations regarding the potentia
Page 138 and 139: 7. SUMMARY AND CONCLUSIONS Single-w
Page 140 and 141: REFERENCES Bachman, G.O. 1984. Regi
Page 142 and 143: INTERA Technologies, Inc. 1986. WlP
Page 144 and 145: Stensrud, W.A.; Bame, M.A.; Lantr,
Page 146 and 147: (A-4)
Page 148 and 149: distinct value of Coe2s. Pressure-d
Page 150 and 151: The wellbore storage coefficient is
Page 152 and 153: where: n = number of normal sets of
Page 154 and 155: (A-21) and for spherical blocks the
Page 156 and 157: where: tp* = Vfq, V = total flow pr
Page 160 and 161: A.4 INTERPRET WELL-TEST INTERPRETAT
Page 162 and 163: DISTRIBUTION: U. S. Department of E
Page 164 and 165: INTERA Technologies, Inc. (9) 6580
Page 166 and 167: WlPP Public Reading Room Carlsbad M
Page 168 and 169: Nationale Genossenschaft fur die La
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