A 3C walkaway VSP and surface seismic experiment was conducted at the Containment and Monitoring Institute (CaMI) Field Research Station (FRS) in May of 2015. The FRS is located near the town of Brooks in southern Alberta, Canada. Multiple objectives for the program included student training, surface source and receiver comparisons, multi-component walkaway VSP acquisition, and velocity tomography for site characterization.
Two parallel NE-SW receiver lines were laid out with one line centered on a well and the other offset 100 m to the northwest. Both receiver lines had single-component geophones at a 10 m receiver spacing. In addition, the line centered on the well had three-component geophones at a 30 m receiver spacing. A tool with three-component geophones was deployed within the well at three different levels, giving receiver positions from 106 to 496 m depth at a 15 m spacing.
Two source lines centered on the well location, one linear with a vibe point (VP) every 10 m and the other semi-circular with a VP every 5 degrees were acquired three times, once for each tool position in the well. The source was an IVI EnviroVibe using a variety of filtered and unfiltered maximal length sequence pilots (m-sequences) as well as a linear 10-200 Hz sweep. This abstract presents a first look at the data and some early results.
Presentation Date: Wednesday, October 19, 2016
Start Time: 4:25:00 PM
Presentation Type: ORAL