August 1998
Industry At A Glance
98-08_dwt_how-nirider_fig7.html (Aug-1998)
A monthly magazine offering industry news, statistics and technical editorial to the oil and gas drilling, exploration and production industry.
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Fig. 7. The Arnold umbilical is a combined electric and hydraulic type. Hydraulic tubes are all metal with three, 3/8-in. ID super-duplex tubes and seven, 1/2-in. ID zinc-coated carbon steel tubes. Electric cables consist of two twisted pairs for supply of power, and two shielded, twisted pairs for communications. |
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FROM THE ARCHIVE
Copyright © 1999 World Oil
Copyright © 1999 Gulf Publishing Company
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