| Abstract: | Accurate measurement of water levels deeper than 1,000 feet in wells requires specialized equipment. Corrections for stretch and thermal expansion of measuring tapes must be considered, and other measuring devices must be calibrated periodically. Bore-hole deviation corrections also must be made.
Devices for recording fluctuation of fluid level usually require mechanical modification for use at these depths. A multichannel recording device utilizing pressure transducers has been constructed. This device was originally designed to record aquifer response to nearby underground nuclear explosions but can also be used for recording data from multi-well pumping tests.
Bottom-hole recording devices designed for oil-field use have been utilized in a limited manner. These devices were generally found to lack the precision required, in ground-water investigations at the Nevada Test Site but may be applicable in other areas. A newly developed bottom-hole recording pressure gauge of improved accuracy has been used with satisfactory results. |
| Genre: | USGS Numbered Series |
| ProdID: | 4683 |
| Citation Author: | Garber, M. S.; Koopman, F. C. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | iv, 23 p. :ill. ;26 cm. Reprinted in 1979. |
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| Citation Publisher: | U.S. Govt. Print. Off., |
| Citation Series: | Techniques of Water-Resource Investigation |
| Citation Series Code: | TWRI |
| Citation Series Number: | 08-A1 |
| Citation Search Results Text: | Methods of measuring water levels in deep wells; 1968; TWRI; 08-A1; Garber, M. S.; Koopman, F. C. |
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| Citation Year: | 1968 |
| Type: | citation/reference |
| Text: | Methods of measuring water levels in deep wells; 1968; TWRI; 08-A1; Garber, M. S.; Koopman, F. C. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg |
| URL (INDEX PAGE): | http://pubs.usgs.gov/twri/twri8a1/ |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Govt. Print. Off., |
