Project Description
Deep well environment containing CO2.
INTRODUCTION:
In most conditions when the partial pressure of CO2 is above 30psi, carbon steels present high corrosion rates. Steel grades alloyed with high contents of Chromium (Cr), Molybdenum (Mo) and Nickel (Ni) are able to effectively resist corrosion. 13Cr Steel OCTG Pipe made with 13% Chromium (13Cr) are the least expensive corrosion-resistant alloy (CRA) tubulars that can be used to combat C02 corrision and H2S environmental cracking without inhibitor treatment. These stainless steel tubulars cost only half as much as duplex stainless steel and one-fourth to one-tenth as much as high-nickel CRA materials. Using 13Cr Steel OCTG Pipe might also be less expensive and more cost-effective than using carbon/low-alloy steel with inhibition. The 13Cr Steel OCTG Pipes are especially attractive for tubing applications in offshore production operations where working space is limited and workover costs are high. Tubulars made with 13% Cr have been widely used in North America, the North Sea, Gulf of Mexico and North Slope of Alaska.
13Cr steel is susceptible to corrosion at high temperature, to sulfidestress cracking (SSC) in moderate to high H2S environments and to crevice corrosion. Therefore, application of 13Cr Steel OCTG Pipe does require precautions in tubular design, procurement, handling, storage, and field operations.
METALLURGY:
The 13Cr steel and its equivalents are martensitic stainless steels that contain 11.5-14.0 percent chromium.
STANDARDS:
- API 5CT latest edition at time of manufacture (PSL-1, PSL-2, PSL, 3)
- API-5CRA Corrosion Resistant Alloy Seamless Tubes for Use as Casing, Tubing and Coupling Stock
- API-5B Threading, Gaging and Thread Inspection of Casing, Tubing and Line Pipe Threads ISO 11960:2004, Petroleum and natural gas industries-Steel pipes for use as casing or tubing for wells
- ISO 13680-2000 Petroleum and natural gas industries-Corrosion-resistant alloy seamless tubes for use as casing,tubing and coupling stock-Technical delivery conditions
- DEP 39.01.20.10-Gen L80 13%Cr casing and tubing (amendments/supplements to ISO/DIS 11960.2)
- DEP 39.01.20.30-Gen Corrosion-resistant alloy seamless tubes for use as casing, tubing and coupling stock – technical delivery conditions (endorsement of ISO 13680)
- DEP 39.01.20.31-Gen Care and use of casing and tubing (endorsement of ISO 10405)
- GOST 632-80 Specification of Casing Pipe and Couplings form THEM
- PDVSA EM-18-00-05 Requirements for Casing and Tubing
13Cr SERIES:
- L80-13Cr
- C95-SP13Cr1
- C95-SP13Cr2
- P110-SP13Cr1
- P110-SP13Cr2
CONNECTIONS:
- STC (short round thread casing)
- LTC (long round thread casing)
- BTC (buttress thread casing)
- XL (extreme-line casing)
- NUE (non-upset tubing)
- EUE (external upset tubing)
- IJ (integral joint tubing)
- Premium Connections
And almost any premium & gas tight connection.
LENGTH:
Range 1, Range 2 & Range 3
PROTECTION:
- External bare and uncoated or externally coated with black/ transparent anti rust Mill varnish Plastic or Metal Pin and Box Protectors.
- Internal plastic coating or sleeves.
MILL TEST CERTIFICATE:
Issued in accordance with API Specification 5CT Eighth Edition. Additional Third Party Inspection can also be performed on request.
We are committed to integrate steel resources in china and serve the global steel market. Our company has more than 15 years of experience in steel researching, production, managing and sales. And our team mostly are based on and worked in national famous steel enterprise before. In the aspect of resources and information, we have established cooperative relationship with nearly hundred enterprises, either state-owned or private owned in China.
What’s more, we have built long, deep and close business relationship with dozens of steel company, Sharing and holding equities with several steel enterprises. Because of the close cooperation with steel companies and our pioneering spirit, which can ensure us stay at the top competition, and ensure our customers get what they really want. We provide preffesional one-stop service to the Contractors of follows project:
- Oil and Gas Pipeline Construction
- Onshore and Offshore
- Boiler Manufacturers
- Oil Refining Equipment
- Petroleum and Chemical Plant Construction
- Fire Protection
- Heating & Air Conditioning
Our ability to purchase materials directly from leading mills at the best possible price will give you the competitive edge. This coupled with a skilled workforce dedicated to embracing the demands of the markets we serve. Just give us a call +86-731-89903933.
