OIL WELL PIPE

PROBLEM TO BE SOLVED: To provide an oil well pipe having self-perforation which can be self-repaired even when petroleum extraction port is blocked during use. SOLUTION: A sliding layer made of material whose stiffness coefficient ranges between 10 and 10 N/m in the state of one year use under use e...

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Bibliographische Detailangaben
1. Verfasser:	SAKURA HIROMOCHI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an oil well pipe having self-perforation which can be self-repaired even when petroleum extraction port is blocked during use. SOLUTION: A sliding layer made of material whose stiffness coefficient ranges between 10 and 10 N/m in the state of one year use under use environmental temperature of an oil well pipe, and a protection layer for protecting the sliding layer are sequentially arranged on an outer surface of a steel pipe. In such an oil well pipe, the protection layer is made of polypropyrene or ethyrene propyrene complymer resin. The thickness of the protection layer is 5 mm or less.