Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Repair – replacement – or improvement
Patent
1993-05-27
1995-10-10
Reese, Randolph A.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Repair, replacement, or improvement
405154, 175 62, 175391, 175424, F16L 1028
Patent
active
054565529
ABSTRACT:
Apparatus is provided for installing a pipeline in borehole comprising a pulling pipe drawn by a drill string and an articulating joint coupling the pulling pipe to the pipeline. The articulating joint allows an angle to be formed between the pulling pipe and the pipeline. A reamer is used to clear the borehole as the pipeline is installed. The reamer includes a plurality of radially-oriented nozzles for directing fluid away from the stem of the reamer in order to clean the teeth of the reamer without directing the cuttings and other debris toward areas in which accumulation is likely to occur. Deflecting nozzles prevent the outermost radially-oriented nozzles from overcutting the borehole.
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Cherrington Martin D.
Reese Randolph A.
Ricci John A.
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