High-strength corrosion-resistant tubing for oil and gas completion and drilling applications, and process for manufacturing thereof

A high strength corrosion resistant tubing comprises about 35% to about 55% of Ni, about 12% to about 25% of Cr, about 0.5% to about 5% of Mo, up to about 3% of Cu, about 2.1% to about 4.5% of Nb, about 0.5% to about 3% of Ti, about 0.05% to about 1.0% of Al, and about 0.005% to about 0.04% of C, wi...

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1. Verfasser:	MANNAN SARWAN KUMAR
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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creator	MANNAN SARWAN KUMAR
description	A high strength corrosion resistant tubing comprises about 35% to about 55% of Ni, about 12% to about 25% of Cr, about 0.5% to about 5% of Mo, up to about 3% of Cu, about 2.1% to about 4.5% of Nb, about 0.5% to about 3% of Ti, about 0.05% to about 1.0% of Al, and about 0.005% to about 0.04% of C, with the balance being Fe, and incidental impurities and deoxidizers. The composition also satisfies the equation: (Nb - 7.75 C) / (Al + Ti) = about 0.5 to about 9. A process for manufacturing the tubing includes: extruding the alloy to form a tubing; cold working the extruded tubing; annealing the cold worked tubing; and applying at least one age hardening step to the annealed tubing. Another process includes extruding the alloy at a temperature of about 2050 degree Fahrenheit or less; annealing the extruded tubing; and applying at least one age hardening step to the annealed tubing.
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The composition also satisfies the equation: (Nb - 7.75 C) / (Al + Ti) = about 0.5 to about 9. A process for manufacturing the tubing includes: extruding the alloy to form a tubing; cold working the extruded tubing; annealing the cold worked tubing; and applying at least one age hardening step to the annealed tubing. 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The composition also satisfies the equation: (Nb - 7.75 C) / (Al + Ti) = about 0.5 to about 9. A process for manufacturing the tubing includes: extruding the alloy to form a tubing; cold working the extruded tubing; annealing the cold worked tubing; and applying at least one age hardening step to the annealed tubing. 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The composition also satisfies the equation: (Nb - 7.75 C) / (Al + Ti) = about 0.5 to about 9. A process for manufacturing the tubing includes: extruding the alloy to form a tubing; cold working the extruded tubing; annealing the cold worked tubing; and applying at least one age hardening step to the annealed tubing. Another process includes extruding the alloy at a temperature of about 2050 degree Fahrenheit or less; annealing the extruded tubing; and applying at least one age hardening step to the annealed tubing.</abstract><oa>free_for_read</oa></addata></record>
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subjects	ALLOYS CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
title	High-strength corrosion-resistant tubing for oil and gas completion and drilling applications, and process for manufacturing thereof
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