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

1 .o
0.9
0.8 p' = 12.98 psig
pi = 100.99 psig
0.7
0.6
0
$ 0.5
t
= 0.90 hr
0.4
0.3
0.2
0.1
to = 244:10:00:24
0.0
10-3 10-2 10-1 100 10' 102
ELAPSED TIME, hours
Figure 5-25. H-IYCulebra Slug-Test #2 Plot
5.2.2.5 H-14. Testing of the Culebra at H-14 was
planned to try to reduce the uncertainty in the
location of the transition zone between the higher
transmissivity, fractured, double-porosity system
observed at H-3 and the lower transmissivity,
apparently unfractured, single-porosity system
observed at H-4 (see Figure 1-1). An additional
objective of the H-14 testing was to try to quantify the
vertical heterogeneity of the Culebra by testing
different portions of the Culebra as drilling
progressed. The H-14 test data are presented in
Stensrud et al. (1 987).
At H-14, the Culebra lies from 544.9 to 571.4 ft deep
(Figure 3-6). DSTs and rising-head slug tests were
performed in two stages in the Culebra as the hole
was being drilled. The bit-penetration rate was
monitored closely as the Culebra was cored. The
penetration rate was rapid through the top 3 ft of
Culebra, but then slowed significantly. At 5.8 ft
(550.7 ft deep), coring was halted and DSTs were
performed. The DST's used a single-packer tool,
with the packer set at the bottom of the well casing
between about 528 and 533 ft deep. The actual test
interval included the lower 11.9 ft of Tamarisk
anhydrite and the upper 5.8 ft of Culebra dolomite.
The anhydrite was judged to have a permeability so
much lower than that of the dolomite that the
anhydrite section was not considered during test
interpretation.
Following the upper Culebra DST's, coring continued
through the remaining 20.7 ft of the Culebra and
about 2.6 ft into the unnamed lower member of the
Rustler to 574.0 ft. The DST tool was reset at the
bottom of the well casing, and DST's and a risinghead
slug test of the entire Culebra were performed.
Umer Culebra: The upper Culebra testing consisted
of two flow periods and two buildup periods on
October 21, 1986 (Figure 5-26). The first flow period
(FFL) lasted about 17 minutes, followed by an
87-minute first buildup period (FBU). The second
flow period (SFL) lasted about 27 minutes, and was
followed by a second buildup period (SBU) lasting
about 111 minutes. To analyze the buildup data, the
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