OTCPK:OTTEF - Post by User
Post by
littlejoepton Oct 22, 2002 12:22pm
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Post# 5523820
Osprey-coiled tubing
Osprey-coiled tubinghi. to clarify--if we had a drilling rig on location, with pipe in the derrick, we'd screw all the pipe together and run it in the hole. Drill pipe might typically be 41/2" o.d. 30-32' in length and weigh about 16# a foot. a single rig would pull one jt at a time, a double 2 and a triple 3. Anyhow, to get a tool on bottem, we gotta put all our pipe together and 'trip' it into the hole. Look at coiled tubing as a long piece of pipe--maybe 20,000' or more--wound on a spool. think about unrolling a roll of wire, straighening it out, and pushing it down a hole. This is basically what you're doing---faster and simpler, 'eh? You can get it smaller than an inch o.d. up to at least 4" od. It catchs heck from all the straightening, bending, etc. Will grow in length and stretch or shrink in o.d. from all the stress. I think they even make it double walled, for reverse circulation techniques, drilling in low pressure, fragile formations, etc. lj