High-pressure pipe string for continuous fusion drilling of...

Details High-pressure pipe string for continuous fusion drilling of... High-pressure pipe string for continuous fusion drilling of...

E - Fixed Constructions

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E21B 17/22 (2006.01) E21B 7/14 (2006.01) E21B 17/10 (2006.01) E21B 17/12 (2006.01) E21B 17/18 (2006.01) E21B 17/20 (2006.01) E21B 19/22 (2006.01)

Patent

CA 2033068

A high-pressure pipe string for continuous fusion drilling of deep wells is described. The pipe string comprises at least two shell elements forming two halves of a plurality of pipe segments of the pipe string; and means for assembling the pipe segments into a continuous, smooth, tight, and compression- and tension-resistant pipe. Also described is a process for assembling and propelling a high- pressure pipe string comprising feeding supply lines, measurement instrumentation wiring and control wiring to a boring head in a continuous manner; encasing the supply lines, the measurement instrumentation wiring, and the control wiring in a tight compression and tension-resistant high-pressure pipe string comprising a plurality of pipe segments; and propelling the assembled pipe string continuously downward into a boring. A system for assembling and propelling a high-pressure pipe string is also described.

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