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- W137883572 abstract "The development of the small-diameter electro-opto cable allows the oil and gas industry to employ the advantages of fiber optics (superior signal transmission qualities over long distances) in the harsh downhole environments found in oil and gas wells. The 7/32-inch-diameter electro-opto cable provides an increase in bandwidth of more than 50 percent over 9/16-inch-diameter coaxial cable, and its superior signal transmission capabilities have been proven by actual side-by-side comparisons of down-hole video (DHV) run with the electro-opto cable and with conventional coaxial cables. With use of the new cable, wells need not be killed. DHV logging in wells of 2,000 to 3,000 psi at surface is now routine and has been conducted successfully in a well with 9,800 psi at the surface. Its use is now routine in gas-lift and flowing wells on production. The broadened scope of downhole video system applications has been due primarily to the capability of the small-diameter electro-opto cables to transmit high frequencies. This feature also invites investigation into the possibility that electronic data-gatering tools may be run simultaneously with the video camera." @default.
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- W137883572 date "1994-07-01" @default.
- W137883572 modified "2023-09-26" @default.
- W137883572 title "Downhole video system for harshest environment" @default.
- W137883572 hasPublicationYear "1994" @default.
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