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

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10’ I I I a J P 100 v) v) W a n v) v) W a z E! y IO-’ s E MATCH PARAMETERS = 1.0 psi 1.0 hr = 0.045 = 14 = 10 = 42.45 psia PRESSURE DATA L L PRESSURE-DERIVATIVE DATA - SIMULATIONS 10-2 10.2 lo-’ 100 10’ 102 103 DIMENSIONLESS TIME GROUP. t,/C, Figure 5-88. H-I4/Magenta Third Buildup Log-Log Plot with INTERPRET Simulation 3.0 MATCH PARAMETERS 2.0 - AP f 1.0 psi 1.0 hr PO 0.045 tOiCO 14 CDe2s 10 P’ 106.0 psia , .O 0.0 + DATA - SIMULATION -1.0 0.0 0.5 1 .o 1.5 2.0 2.5 DIMENSIONLESS SUPERPOSITION FUNCTION: FLOW PERIOD 9 114 Figure 5-89. H-l4/Magenta Third Buildup DirnensionIess Homer Plot with INTERPRET Simulation
The complex pressure-skin effects seen during these tests make determination of a precise value for the hydraulic head of the Magenta at H-14 very difficult. Each buildup period indicated a lower static pressure than the preceding one. The shape of the TBU pressure derivative (Figure 5-88) indicates that the static pressure must be lower than the final pressure measured, 11 0.3 psia. The dimensionless Horner plot (Figure 5-89) indicates that 106 psia might be appropriate. Given that the fluid in the hole had a specific gravity of 1.2, that the transducer measured an atmospheric pressure of 12 psia, and that the transducer was at a depth of 401.9 ft, 106 psia corresponds to a pressure of about 112 psig at the midpoint of the Magenta about 436 ft deep. However, the Magenta response during the three buildup periods raises the question as to what static pressure a fourth buildup period might have shown. A rough interpolation from Magenta water levels at H-3bl and H-4c in 1986 (Saulnier et al., 1987) indicates that the static pressure at H-14 may have been as low as about 102 psig. In summary, no precise value can be assigned for the hydraulic head of the Magenta at H-14. The last measured pressure of 116 psig provides a probable maxiumum value, while estimates from H-3 and H-4 water-level data provide a lower estimate of about 102 psig. A permanent well completion in the Magenta at H-14 would be required to refine the value further. 5.2.4.2 H-16. At H-16, the Magenta lies from 590.2 to 61 5.6 ft deep (Figure 3-8). The Magenta was cored and reamed on July 28 and 29, 1987. Following reaming on July 29, 1987, the drilling fluid in the hole was partially unloaded by airlifting and the DST tool was set in the hole. The Magenta was tested in an interval that extended from 589.2 ft to the then-bottom of the hole 620.7 ft deep. Thus, the lower 1 ft of the Forty-niner and the upper 5.1 ft of the Tamarisk were included in the test interval. These intervals are composed of gypsum and anhydrite, however, and were judged to have permeabilities too low to have contributed significantly to the responses observed during testing. Testing was performed on July 30 and 31,1987, and consisted of two DST flow periods, two buildup periods, and a rising-head slug test (Figure 5-90). The FFL lasted about 22 minutes and was followed by a 466-minute FBU. The SFL lasted about 31 minutes and was followed by a 927-minute SBU. To obtain constant flow rates for buildup analyses, the FFL was divided into two flow periods having flow rates of 0.062 and 0.047 gpm, and the SFL was divided into two flow periods having flow rates of 0.062 and 0.045 gpm (Table 5-1). The slug test lasted almost 8 hr, during which time about 45% of the induced pressure differential dissipated. Descriptions of the test instrumentation and the test data are contained in Stensrud et al. (1988). Figure 5-91 shows a log-log plot of the FBU data, along with an INTERPRET-generated simulation. The simulation is representative of a single-porosity medium with a transmissivity of 2.8 x 10-2 ftZ/day (Table 5-2). Assuming a porosity of 20%, a totalsystem compressibility of 1.0 x 10-5 psi-', and a fluid viscosity of 1.0 cp, the skin factor for this simulation is -0.4, indicating a very slightly stimulated well. The pressure derivative shows oscillations similar, although with much lower amplitudes, to those observed in the H-14 Magenta SBU and TBU data (Figures 5-87 and 89). Again, these oscillations may be related to periods of different hydraulic loading on the Magenta during coring, reaming, and preparation for testing. The decline of the pressure derivative at late time clearly shows the effects of an overpressure skin. The log-log plot of the SBU data (Figure 5-92) looks similar to that of the FBU data (Figure 5-91). The SBU simulation is representative of a single-porosity medium with a transmissivity of 2.8 x 10-2 ft2/day and a skin factor of -0.8 (Table 5-2). The decline in the late-time pressure derivative indicates the continued presence of an overpressure skin. Figure 5-93 is a linear-linear plot of the Magenta DST sequence with a simulation of the entire sequence generated by INTERPRET using the model derived in the FBU analysis. The static formation pressure specified for this simulation was 134.4 psia. Because of the continuing dissipation of the overpressure skin, the SBU data are generally slightly below the simulation. Otherwise, the match between the observed data and the simulation is excellent. 115
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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
Page 64 and 65: 102 I I 1 1 1 W K 3 v) v) W K n v)
Page 66 and 67: 5.2.2.21 below) and DOE-2 (Beauheim
Page 68 and 69: ..A 225 - PRESSURE ABOVE TEST INTER
Page 70 and 71: 10' n ui K 3 v) v) W a n v) v) 100
Page 72 and 73: 10' MATCH PARAMETERS O n w a 3 v) v
Page 74 and 75: ..CI__._._..__....__.I 5.2.2.6 H-15
Page 76 and 77: 8.0 1 I I I MATCH PARAMETERS AP 1.0
Page 78 and 79: - 200 150 5 - EQUILIBRATION \Feu 'S
Page 80 and 81: 4.0 1 I 1 1 3.0 I n 2.0 1 .o 0.0 0.
Page 82 and 83: 1.0 0.9 0.8 0.7 0.6 0 0.5 0.4 0.3 0
Page 84 and 85: 3.0 .hl c El2 2.0 . v n I P 1 .o MA
Page 86 and 87: EI€3- 0.9 "O I OOATA - TYPE CURVE
Page 88 and 89: 4.0 I I I 3.0 MATCH PARAMETERS AP =
Page 90 and 91: 1 .o 0.9 0.8 0.7 1 MATCH PARAMETERS
Page 92 and 93: 1 .o 0.9 0.8 0.7 0.6 0 2 0.5 I 0.4
Page 94 and 95: 1.0, 0 I 0.9 0.8 0.7 0.6 0.5 0.4 MA
Page 96 and 97: P-15 was bailed on four occasions i
Page 98 and 99: 1 .o 0.9 0.8 - p’ = 78.93 prig p,
Page 100 and 101: Two type-curve matches are shown wi
Page 102 and 103: 0 5 I ELAPSED TIME. hours Figure 5-
Page 104 and 105: 10’ 1 I I I n a w 5 100 v) v) W a
Page 106 and 107: 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 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 158 and 159: Figure A-5. Semilog Slug-Test Type
Page 160 and 161: A.4 INTERPRET WELL-TEST INTERPRETAT
Page 162 and 163: DISTRIBUTION: U. S. Department of E
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INTERA Technologies, Inc. (9) 6580
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WlPP Public Reading Room Carlsbad M
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Nationale Genossenschaft fur die La
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