Menu
Search
Filters
Close
Menu

00160 QUALIFICATION OF Ti-6AI-4V-Ru ALLOY PRODUCTION TUBULARS FOR AGGRESSIVE FLUORIDE-CONTAINING MOBILE BAY WELL SERVICE

Picture for 00160 QUALIFICATION OF Ti-6AI-4V-Ru ALLOY
Available for download
Product Number: 51300-00160-SG
ISBN: 00160 2000 CP
Author: R.W. Schutz, R.L. Porter, and J.M. Horrigan
$0.00
$20.00
$20.00
Ti-6AI-4V-Ru alloy (102 mm [4"] OD) seamless p i p was evaluated as candidate production string tubulars for a specific Mobile Bay Field producing corrosive NaCI- and CaF2-saturated sour brines at 210°C (410°F). The extensive qualification test program, which was mandated by a major Mobile Bay gas producer, included assessment of long-term pipe property and metallurgical stability at well temperature, and long-term corrosion resistance in this sour production brine, injected organic acidizing solutions, liquid scale inhibitor, and methanol solvent for hydrate control; in addition to resistance to NaBr brine completion/packer fluids when coupled to steel casing under sour conditions. Test results, documented herein, revealed that this Ti-6AI-4V-Ru pipe exhibited good long-term thermal stability in metallurgy and mechanical properties consistent with all specification requirements; and acceptable, exceptional resistance to all forms of corrosion and embrittlement in all specific well environments tested. The only exception was the expected susceptibility of the Ti alloy pipe to SCC in water-lean methanol solutions, which is addressed by ensuring that the methanol contains at least 7-10 wt.% water prior to well injection. Based on this sound, relevant property database and the exceptional corrosion resistance of this pipe to anticipated worst-case well service conditions, Ti-6AI-4V-Ru alloy pipe is considered to be a viable, suitable, and attractive alternative for production tubing strings in sour, fluoride-containing Mobile Bay gas wells. Keywords: sour gas, downhole, production tubulars, Mobile Bay, titanium alloys, corrosion resistance, stress corrosion cracking, mechanical properties, hydrogen, methanol
Ti-6AI-4V-Ru alloy (102 mm [4"] OD) seamless p i p was evaluated as candidate production string tubulars for a specific Mobile Bay Field producing corrosive NaCI- and CaF2-saturated sour brines at 210°C (410°F). The extensive qualification test program, which was mandated by a major Mobile Bay gas producer, included assessment of long-term pipe property and metallurgical stability at well temperature, and long-term corrosion resistance in this sour production brine, injected organic acidizing solutions, liquid scale inhibitor, and methanol solvent for hydrate control; in addition to resistance to NaBr brine completion/packer fluids when coupled to steel casing under sour conditions. Test results, documented herein, revealed that this Ti-6AI-4V-Ru pipe exhibited good long-term thermal stability in metallurgy and mechanical properties consistent with all specification requirements; and acceptable, exceptional resistance to all forms of corrosion and embrittlement in all specific well environments tested. The only exception was the expected susceptibility of the Ti alloy pipe to SCC in water-lean methanol solutions, which is addressed by ensuring that the methanol contains at least 7-10 wt.% water prior to well injection. Based on this sound, relevant property database and the exceptional corrosion resistance of this pipe to anticipated worst-case well service conditions, Ti-6AI-4V-Ru alloy pipe is considered to be a viable, suitable, and attractive alternative for production tubing strings in sour, fluoride-containing Mobile Bay gas wells. Keywords: sour gas, downhole, production tubulars, Mobile Bay, titanium alloys, corrosion resistance, stress corrosion cracking, mechanical properties, hydrogen, methanol
PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for 00148 THE CHLORIDE AND SULPHIDE STRESS CORROSION
Available for download

00148 THE CHLORIDE AND SULPHIDE STRESS CORROSION CRACKING BEHAVIOUR OF THE HIGH STRENGTH SUPERAUSTENITIC STAINLESS STEEL UNS S34565

Product Number: 51300-00148-SG
ISBN: 00148 2000 CP
Author: Thomas L. Ladwein, John M. Drugli, Kjell Hollen, Rolf K. Poepperling
$20.00
Picture for 00145 EFFECT OF MICROSTRUCTURE ON CORROSION
Available for download

00145 EFFECT OF MICROSTRUCTURE ON CORROSION RESISTANCE OF A MARTENSITIC STAINLESS LINEPIPE

Product Number: 51300-00145-SG
ISBN: 00145 2000 CP
Author: Koichi Nose and Hitoshi Asahi
$20.00
Picture for 00154 THE DEVELOPMENT AND IMPLEMENTATION OF
Available for download

00154 THE DEVELOPMENT AND IMPLEMENTATION OF A NEW ALLOYED STEEL FOR OIL AND GAS PRODUCTION WELLS

Product Number: 51300-00154-SG
ISBN: 00154 2000 CP
Author: Perry Ian Nice, Hideki Takabe, and Masakatsu Ueda
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support