Server maintenance is scheduled for Saturday, December 21st between 6am-10am CST.

During that time, parts of our website will be affected until maintenance is completed. Thank you for your patience.

Menu
Search
Filters
Close
Menu

51318-10884-Studies of Aqueous Hydrogen Sulfide Corrosion in Producing SAGD Wells

Picture for 51318-10884-Studies of Aqueous Hydrogen Sulfide Corrosion in Producing SAGD Wells
Available for download

Lab and field corrosion testing was completed on materials commonly used downhole in Steam Assisted Gravity Drainage (SAGD) to evaluate general corrosion rates, how they vary with well depth - as well as operating environment - to determine a dominating mechanism.

Product Number: 51318-10884-SG
Author: Trent Pehlke
Publication Date: 2018
Industry: Corrosion Monitoring and Control
$0.00
$20.00
$20.00

Lab and field corrosion testing was completed on materials commonly used downhole in Steam Assisted Gravity Drainage (SAGD) to evaluate general corrosion rates, and how they vary with well depth, and operating environment to determine a dominating mechanism.

Lab testing utilized autoclaves to allow for corrosion rate and characterization measurements under controlled conditions. Field coupon testing consisted of installing corrosion coupons at various elevations in the annulus of a producing SAGD well. Corrosion rate analysis consisted of weight loss and various electrochemical measurement techniques, visual inspections, and x-ray diffraction analysis to determine scale compositions. Materials tested included various carbon steels, alone and in combination, as well as steels with hard facing and galvanized finishes.

Field coupons showed corrosion rates decreasing from 0.0178mm/y at the bottom of the well to 0.0145mm/y at higher well elevations. This corresponded to a decrease in iron sulfide scale content from the well bottom upwards. Based on the scales composition, operating conditions, and fluids present, it is likely that the scales were formed through the well-known solid-state reaction between aqueous H2S and the metal. High average corrosion rates of 0.263mm/y were measured in the lab, compared to a low 0.0183mm/y in field studies.

Key words: SAGD, Corrosion, Well Integrity, Hydrogen Sulfide, Casing, Tubing, Operating, Aqueous

Lab and field corrosion testing was completed on materials commonly used downhole in Steam Assisted Gravity Drainage (SAGD) to evaluate general corrosion rates, and how they vary with well depth, and operating environment to determine a dominating mechanism.

Lab testing utilized autoclaves to allow for corrosion rate and characterization measurements under controlled conditions. Field coupon testing consisted of installing corrosion coupons at various elevations in the annulus of a producing SAGD well. Corrosion rate analysis consisted of weight loss and various electrochemical measurement techniques, visual inspections, and x-ray diffraction analysis to determine scale compositions. Materials tested included various carbon steels, alone and in combination, as well as steels with hard facing and galvanized finishes.

Field coupons showed corrosion rates decreasing from 0.0178mm/y at the bottom of the well to 0.0145mm/y at higher well elevations. This corresponded to a decrease in iron sulfide scale content from the well bottom upwards. Based on the scales composition, operating conditions, and fluids present, it is likely that the scales were formed through the well-known solid-state reaction between aqueous H2S and the metal. High average corrosion rates of 0.263mm/y were measured in the lab, compared to a low 0.0183mm/y in field studies.

Key words: SAGD, Corrosion, Well Integrity, Hydrogen Sulfide, Casing, Tubing, Operating, Aqueous

Product tags
Also Purchased
Picture for Case Histories of Low Alloy Steel Used for Completion Tools in High-H2S and -CO2 Environments
Available for download

51318-10899-Case Histories of Low Alloy Steel Used for Completion Tools in High-H2S and -CO2 Environments

Product Number: 51318-10899-SG
Author: Karthik Krishnan
Publication Date: 2018
$20.00

This paper discusses two case histories in which 41XX low-alloy steel, quenched and tempered to 22 HRC maximum hardness, was used in longer-term downhole completion tools.
Picture for The pitting corrosion behavior of carbon steel in presence of sulfate-reducing bacteria under H2S
Available for download

51318-10895-The pitting corrosion behavior of carbon steel in presence of sulfate-reducing bacteria under H2S

Product Number: 51318-10895-SG
Author: Ma Lei / Xie Junfeng / Xiong MaoXian / Li Yan / Zhao Mifeng / Wang Hua
Publication Date: 2018
$20.00

Corrosion behaviors on carbon steel - in presence of sulfate reducing bacteria (SRB) - were studied via weight loss methods and electrochemical tests including polarization curve and EIS measurements.
Picture for MEANINGFUL TESTS FOR THE QUALITY OF DUPLEX STAINLESS STEELS
Available for download

51318-10876-MEANINGFUL TESTS FOR THE QUALITY OF DUPLEX STAINLESS STEELS

Product Number: 51318-10876-SG
Author: Dr. Glenn Byrne / A Fajimi / Dr. R Francis / G. Warburton
Publication Date: 2018
$20.00

Current test regimes and acceptance levels as concerns the strong detrimental influence on toughness and corrosion resistance of intermetallic particles (IMP) in the microstructure of duplex stainless steels.
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