| Abstract: | Requirements for testing hydrologic test wells at the proposed Waste Isolation Pilot Plant near Carlsbad, New Mexico, necessitated the use of inflatable formation packers and pressure transducers. Observations during drilling and initial development indicated small formation yields which would require considerable test times by conventional open-casing methods. A pressure-monitoring system was assembled for performance evaluation utilizing commercially available components. Formation pressures were monitored with a down-hole strain-gage transducer. An inflatable packer equipped with a 1/4-inch-diameter steel tube extending through the inflation element permitted sensing formation pressures in isolated test zones. Surface components of the monitoring system provided AC transducer excitation, signal conditioning for recording directly in engineering units, and both analog and digital recording. Continuous surface monitoring of formation pressures provided a means of determining test status and projecting completion times during any phase of testing. Maximum portability was afforded by battery operation with all surface components mounted in a small self-contained trailer. (USGS) |
| Genre: | USGS Numbered Series |
| ProdID: | 7836 |
| Citation Author: | Basler, J. A. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | v, 34 p. ill. ;28 cm. |
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| Citation Publisher: | U.S. Geological Survey, |
| Citation Series: | Open-File Report |
| Citation Series Code: | OFR |
| Citation Series Number: | 83-144 |
| Citation Search Results Text: | Instrumentation used for hydraulic testing of potential water-bearing formations at the Waste Isolation Pilot Plant site in southeastern New Mexico; 1983; OFR; 83-144; Basler, J. A. |
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| Citation Year: | 1983 |
| Type: | citation/reference |
| Text: | Instrumentation used for hydraulic testing of potential water-bearing formations at the Waste Isolation Pilot Plant site in southeastern New Mexico; 1983; OFR; 83-144; Basler, J. A. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/of/1983/0144/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/of/1983/0144/report.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey, |
