Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along... – Sectional guide or shaft having means to lock sections in...
Patent
1996-01-11
1996-07-23
Tsay, Frank
Boring or penetrating the earth
Means traveling with tool to constrain tool to bore along...
Sectional guide or shaft having means to lock sections in...
175 75, 175320, E21B 708
Patent
active
055380921
ABSTRACT:
A flexible drill pipe includes a plurality of hollow tubular pipe segments, having a longitudinal centerline, the segments being flexibly connected together, each connecting joint a type of joint that permits a limited universal movement between a portion of one pipe segment within in a portion of a second pipe segment, whereby the drill pipe can bend and also can withstand torque loads from rotation during drilling and pullback loads during removal of the drill pipe from a drillhole. An elastomeric seal in each connecting joint provides fluid tight sealing in the joints. A mobile drilling platform includes a powered reel and drill tower for raising and lowering the flexible drill pipe into and out of a drill hole. Pressurized fluid is fed through the drill pipe to drive a down-the-hole drill.
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Airflex Brochure, by Eaton.
Ingersoll-Rand Company
Selko John J.
Tsay Frank
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