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Case Histories Of Buried Borehole Detection: An Exercise In Flexibility
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 9th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems, Apr 1996, cp-205-00094
Abstract
It is sometimes difficult to determine in advance exactly which equipment or technique is best suited to a given project. Although the response of a particular target may be predictable, the local background response may be more difficult to assess until field data have actually been gathered. This problem becomes economically significant when the job site is relatively remote, requiring downtime and/or additional airfreight expenses when the actual field results don't match expectations and a change in equipment systems becomes necessary. An example of this is a recent series of surveys in Indiana and Ohio, in which the goal was to ensure that no abandoned, buried oil wells were present within in a prescribed radius of proposed injection wells. After local tests, both the physical survey layout and the data processing techniques were varied in order to detect the various possible targets in the different environments.