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

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3418.96 n<br />

7.875-inch<br />

REAMED BOREHOLE -<br />

TRAILER<br />

2.375-inch TUBING<br />

ANNULUS TRANSDUCER<br />

DRUCK PDCR IOlD<br />

TEST-INTERVAL TRANSDUCER<br />

DRUCK PDCR 101D<br />

BASK1 PACKER<br />

The depth discrepancy may be due to one <strong>of</strong> the two<br />

surveys having incorrectly "zeroed" a depth counter.<br />

Inasmuch as the 1985 survey and the subsequent<br />

perforation were run using the same depth counter<br />

and the same datum, the correct interval was<br />

probably perforated, whatever its true absolute<br />

depth. From June 11 to 17, 1986, WIPP-22 was<br />

developed by pumping and surging (Saulnier et al.,<br />

<strong>1987</strong>). For slug testing, a PIP was temporarily set in<br />

the well casing from 738.1 to 742.5 ft on 2.375-inch<br />

tubing. The configuration <strong>of</strong> the well at the time <strong>of</strong><br />

testing is shown in Figure 3-16.<br />

2.375-Inch TUBING<br />

5.5-inch. 15.5 Ib/n<br />

WELL CASING<br />

NNULUS TRANSDUCER<br />

RUCK PDCR lOlD<br />

TEST-INTERVAL TRANSDUCER<br />

DRUCK PDCR 10fD<br />

ALL DEPTHS BELOW GROUND SURFACE<br />

NOT TO SCALE<br />

7.875-inch<br />

REAMED BOREHOLE<br />

BASK1 PACKER<br />

Figure 3-1 5. Well Configuration for WIPP-21 Slug Test<br />

3.14 WIPP-22<br />

WIPP-22 was drilled as part <strong>of</strong> the same program as<br />

WIPP-18, WIPP-19, and WIPP-21 in 1978 (Sandia and<br />

USGS, 1980d). The hole was drilled to a total depth<br />

<strong>of</strong> 1448 ft, 565 ft into the Salado Formation. WIPP-22<br />

was then abandoned in an open-hole condition filled<br />

with brine mud until October 1985, when the hole<br />

was recompleted to serve as a Culebra observation<br />

well. The borehole was reamed to a diameter <strong>of</strong><br />

7.875 inches, and 5.5-inch casing was installed and<br />

cemented from the surface to a depth <strong>of</strong> 949.8 ft.<br />

The Culebra interval was then shot-perforated from<br />

748 to 770 ft deep, based on gamma-ray logging<br />

performed to locate the Culebra. Sandia and USGS<br />

(1980d) report the Culebra 6 ft higher, from 742 to<br />

764 ft deep. The source <strong>of</strong> the 6-ft discrepancy<br />

between the 1978 and 1985 surveys is unknown.<br />

ALL DEPTHS BELOW GROUND SURFACE<br />

NOT TO SCALE<br />

Figure 3-16. Well Configuration for WIPP-22 Slug Test<br />

3.15 WIPP-30<br />

Well WIPPBO was drilled in September 1978 as one<br />

<strong>of</strong> six wells drilled to evaluate dissolution <strong>of</strong> nearsurface<br />

rocks in and adjacent to Nash Draw (Sandia<br />

and USGS, 1980). WIPP-30 was cored and reamed to<br />

30

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