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| HawkEye
Video System |
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  he
HawkEye electric line video system is a portable video inspection system
that incorporates technology from the Fiber Optic Video System, including
the 1-11/16" backlight camera, but operates on virtually any conventional
single or multi-conductor wireline cable. HawkEye was developed to overcome
cable limitations of the fiber optic cable and provide video surveys in
wells that previously could not be surveyed with the fiber optic system.
Those cable limitations included temperature, line weight, corrosive fluids,
horizontal wells, and/or the cost to mobilize a dedicated logging unit with
the fiber optic cable. With HawkEye, video surveys are limited mainly by
the temperature and pressure limitations of the downhole tool rather than
the temperature and weight limitations of the fiber optic cable. The difference
in the video capabilities between the two systems is that the fiber optic
system provides full motion video (30 images per second) where as HawkEye
transmits an image every one and half seconds. Most video surveys (90%)
involve inspecting or viewing a motionless mechanical problem of which one
good picture is typically enough to diagnose the problem. HawkEye is perfectly
suited for these applications and is ideal for viewing mechanical problems
such as a fish, casing damage, or a lengthy pipe inspection. Other applications
include the location and orientation of plugs, whipstocks, windows in multi-lateral
completions, and identifying severe casing/tubing problems. The choice between
using the fiber optic system and the HawkEye system depends on the cable
limitations mentioned above, the application intended, and the costs involved.
If the objective involves viewing fluid entry surveys, the fiber optic system
is preferred because its full motion video captures subtle movement that
the slower, electric line system may miss. HawkEye’s unique advantages over
the Fiber Optic system are: 1. Quick mobilization (transport downhole tools and the surface power supply and recording equipment overnight as air cargo or drive out to location in a pickup truck. Hoisted by local electric line provider) 2. Horizontal well video inspections (run on smart coiled tubing units) 3. H2S or CO2 corrosive fluid conditions 4. Deep wells with high shut in pressure |
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Copyright © 1997-2003 DHV International Inc. All rights reserved. |
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