 | Claim Listing
If this is your listing you must be registered and logged in to claim. If you are logged in you will see an icon similar to this  to the left that you will click to claim the listing. Once a listing has been claimed it can be edited. You must be logged in to edit a listing. |
| General Listing |
Title of Listing: | | AIRSLUG |
Category: | | Software/Models |
Subcategory: | | Government, All Listings |
Date: | | |
Document #: | | |
Web Site: | | http://water.usgs.gov/software/airslug.html |
Email: | | h2osoft@usgs.gov |
Abstract: | |
Air-pressurized slug tests offer an efficient means of estimating the transmissivity (T) and storativity (S) of aquifers. Air- pressurized slug tests are conducted by pressurizing the air in the casing above the column of water in a well, monitoring the declining water level and then releasing the air pressure and monitoring the rising water level. The equipment needed to conduct an air- pressurized slug test is easily constructed and assembled at the top of the well. The only equipment in contact with the water is a down-hole sensor to monitor water levels. During the pressurized part of the test, fluctuations in the applied air pressure result in water-level fluctuations, making it difficult to estimate T and S from the declining water-level data. However, if the applied air pressure is maintained until a new equilibrium-water level is achieved and then the air pressure in the well is released instantaneously, the slug test solution developed by Cooper and others (1967) can be used to estimate T and S from the rising water- level data. In low-permeability formations, it may take an extended period of time to achieve the new equilibrium-water level for the applied air pressure. The total time to conduct the test can be reduced, however, if the pressurized part of the test is terminated prior to achieving the new equilibrium-water level. This is referred to as a prematurely terminated air-pressurized slug test. Type curves generated from the solution of Shapiro and Greene (1995) can be used to estimate T and S from the rising water-level data (recovery) from prematurely terminated air-pressurized slug tests. The Fortran code AIRSLUG, is used to generate the type curves from the solution of Shapiro and Greene (1995).
Available for download on the WWW.
|
Topics
Water Resources/Supply/SDWA
Additional Topics/Tags/Keywords
Free Download, Air, Slug Test
Organization: | | US Geological Survey (USGS), Hydrologic Analysis Software Support Team |
Address: | | 437 National Center
| Phone: | Description | Number |
City: | | Reston | | | |
State/Province/Territory: | | VA | 2. | | |
Zip/Postal Code: | | 20192 | 3. | | |
Country: | | United States | 4. | Fax: | |
Branch Locations: | |
|
|
|