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| Fiber
Optic Video System |
|
 eal-time,
full-motion dow nhole video services
provided by DHV International utilize a fiber-optic telemetry system that
all ows dis tortion-free
transmission of clear, sharp video from downhole. The key to the system
is the dedicated logging cable containing an optical fiber for transmitting
video from the downh ole
camera to the surface equipment over long cable lengths. Continuous "live
broadcast" quality video to depths of 14,000 feet viewed real-time in the
logging truck are made possible by this fiber optic transmission system.
The op tic
fiber also facilitates a small diameter 7/32 inch O.D. cable allowing easier
entry into wells with high surface pressure. The cable design incorporates
traditional double armor layers, a single electric copper conductor providing
power to the camera and lamp and the encapsulated optical fiber. A fiber
optic receiver at the surface converts the optical signal in the fiber back
to an electrical signal and sends the signal to the monitors and recording
equipment. Images are viewed and recorded realtime on standard VHS tape
and individual images can be captured in JPEG format and emailed from the
wellsite to the customer’s office. Measurements on images can also be performed
for further analysis.For "fiber jobs", DHVI will bring out their own logging truck with the fiber optic cable. Jobs can be done with a rig or without a rig. DHVI has their own mast trailers and grease injection pressure control equipment for logging producing or shut-in wells. |
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| Copyright © 1997-2003 DHV International Inc. All rights reserved. |