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

deep. The gamma-ray log used to guide the
perforation shows the Culebra from 489 to 515 ft
deep, which indicates that the upper 4 to 5 ft of the
Culebra are apparently not perforated at H-4c. For
slug testing, a PIP was temporarily set in the casing
from 479.2 to 483.6 ft deep on 2.375-inch tubing.
Figure 3-2 shows the configuration of H-4c during the
1986 slug test.
depth of 624 ft. The Culebra at H-8 lies from 588 to
614 ft below land surface (Wells and Drellack, 1982).
The open interval in H-8b includes, therefore, the
lower 13 ft of the Tamarisk Member, which consists
of anhydrite and gypsum, the entire Culebra
dolomite, and the upper 10 ft of the unnamed lower
member of the Rustler, which consists of mudstone
and gypsum. Only the Culebra portion of this interval
is believed to have significant permeability. For
testing in 1985, a pump was installed in the well
below a packer set from 557.7 to 561.9 ft on 1 S-inch
galvanized pipe. The configuration of the well at the
time of the December 1985 pumping test is shown in
Figure 3-4.
2.375-inch TUBING
H-8a (MAGENTA)
5.5-inch, 15.5 Ib/ff
WELL CASING
7.875-inch
REAMED BOREHOLE
ANNULUS TRANSDUCER
DRUCK PDCR lOlD
TEST-INTERVAL TRANSDUCER
DRUCK PDCR 10tD
BASK1 PACKER
H-8b (CULEBRA)
BRIDGE PLUG
ALL DEPTHS BELOW GROUND SURFACE
NOT TO SCALE
Figure 3-2. Well Configuration for H-1 Slug Tests
3.3 H-8b
Figure 3-3.
Pian View of the Wells at the
H-8 Hydropad
Well H-8b was drilled in August 1979 by the USGS as
one of 3 wells in the H-8 borehole complex
(Figure 3-3). The hole was drilled and reamed to a
diameter of 9.75 inches down to 575 ft, and 7-inch
casing was set and cemented from 574 ft to the
surface. A 6.125-inch hole was then cored to a total
3.4 H-12
Well H-12 was drilled in October 1983 to provide
hydrologic and stratigraphic data southeast of the
WlPP site. The hole was cored and reamed to a
diameter of 7.875 inches to a depth of 820 ft, and
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