Print this pageDownhole Video: A Cost-Benefit Analysis
TAGUE, JAMES, Chevron Corp.
In the past few years, downhole video has emerged as a viable and cost-effective means
for analyzing various wellbore problems. Despite this, numerous misconceptions concerning
the cost, 
application
, and complexity remain. In an effort to provide insight into the
proper application and selection of this unique tool, the results of over 30 downhole
video logs conducted by Chevron in the West Coalinga field will be presented and
discussed. Examples will include images obtained of damaged liners, casing holes, and
corrosion problems, as well as their application to remedial well work. Other examples
will include images of the in-situ producing environment, in particular, the ability of
downhole video to image fluid entry and the impact of various wellbore plugging agents
including scale and organic precipitation. Finally, the total cost of running a video log
and the steps necessary to prepare a well will be compared to more traditional means of
logging. Overall, this paper should provide valuable insight for anyone considering the
use of downhole video.
AAPG Search and Discovery Article #90911©2000 AAPG Pacific Section and Western Region Society of Petroleum
Engineers, Long Beach, California