Sour Service Tubing And Casing
- BEILAI
- CHINA
Non API products manufactured according to relevant spec, standards and clients technical requirements.
SOUR SERVICE TUBING AND CASING
Non API products manufactured according to relevant spec, standards and clients technical requirements.
I. Anti-H2S corrosion tubing and casing
APPLICABLE STANDARDS
API SPEC 5CT Specification for casing and Tubing.
ANSI/NACE MR0175 Metals sulfide stress cracking and stress corrosion resistance in sour oilfield environment.
ANSI/NACE TM0177 Laboratory testing of metals for resistance to sulfide stress cracking and stress corrosion cracking in H2S environment.
ISO 15156 Petroleum and natural gas industries-material for use in H2S containing environments in oil and gas production.
ISO 13680 Petroleum and natural gas industries corrosion-resistant seamless tubes for use as casing , tubing and coupling stock technical delivery conditions third edition.
Mechanical Property
Grade | Product Name | Yield strength(MPa) | Tensile Strength(Mpa) | Elogation | Charpy V-impact/J | Max. Hardness/(HRC) | |
Min | Max | Min | |||||
80 | BL80S | 552 | 655 | 655 | Calculated according to API 5CT formula | According to API 5ct | 80 |
BL80SS | |||||||
90 | BL90S | 621 | 724 | 689 | 90 | ||
BL90SS | |||||||
95 | BL95S | 655 | 758 | 724 | 95 | ||
BL95SS | |||||||
110 | BL110S | 758 | 862 | 793 | 110 | ||
BL110S | |||||||
Corrosion Resistance
Product Name | Requirements of anti- corrosion Nature | |
H2S Stress Corrosion Cracking Test (SSC) | ||
Solution A according to NACE TM 0177 A, without crack after 720 Hours | ||
Ø6.35/Sample | Ø3.81/Sample | |
Loading SMYS value | ||
BL80S, BL90S, BL95S | 85% | 76% |
BL80SS, BL90SS, BL 95SS | 90% | 80% |
BL110S | 80% | 72% |
BL110SS | 85% | 76% |
Note: Sulfur resistance grade ‘S” Reefers to normal sulfur resistance; “SS” indicates high sulfur resistance
