|
API 5CT Casing & Tubing
API H40
Minimum Yield Strength: 40,000 psi
Maximum Yield Strength: 80,000 psi
Minimum Tensile Strength: 60,000 psi
Notes: General purpose pipe manufactured to API specification 5CT.
API J55
Minimum Yield Strength: 55,000 psi
Maximum Yield Strength: 80,000 psi
Minimum Tensile Strength: 75,000 psi
Hardness Requirement: None
Notes: General purpose pipe manufactured to API specification 5CT.
Similar to K55 except the minimum tensile strength is lower. Usually,
this grade is used in tubing applications.
API K55
Minimum Yield Strength: 55,000 psi
Maximum Yield Strength: 80,000 psi
Minimum Tensile Strength: 95,000 psi
Hardness Requirement: None
Notes: General purpose pipe manufactured to API specification 5CT. Usually, this grade is used in casing applications
API L80
Minimum Yield Strength: 80,000 psi
Maximum Yield Strength: 95,000 psi
Minimum Tensile Strength: 95,000 psi
Hardness Requirement: 23 HRC maximum
Notes: Manufactured to API specification 5CT. This is a controlled
yield strength material with a hardness testing requirement. L80 is
usually used in wells with sour (H2S) environments.
API N80 (or N80 Q&T)
Minimum Yield Strength: 80,000 psi
Maximum Yield Strength: 110,000 psi
Minimum Tensile Strength: 100,000 psi
Hardness Requirement: None
Notes: General purpose pipe manufactured to API specification 5CT.
API Normalized N80
Minimum Yield Strength: 80,000 psi
Maximum Yield Strength: 110,000 psi
Minimum Tensile Strength: 100,000 psi
Hardness Requirement: None
Notes: A lower-cost alternative to standard Quench and Tempered API N80
(walls less than 0.500 inch). Inspection, testing and dimensions are in
accordance with API 5CT for grade N80. Charpy v-notch impact test
absorbed energy results meet API SR16 and are lower than Quench and
Tempered N80.
API C90
Minimum Yield Strength: 90,000 psi
Maximum Yield Strength: 105,000 psi
Minimum Tensile Strength: 100,000 psi
Hardness Requirement: 25.4 HRC maximum
Hardness testing is conducted as required for API T95, with the
exception of frequency (Casing and Non-Upset Tubing - First, last and
every tenth joint in between; Upset Tubing - First, last and every 25th
joint in between). To reduce order lead time, sulphide stress corrosion
cracking (SSCC) testing is not required for every order. If required by
the customer, SSCC testing can be performed to U. S. Steel Standard Mill
Practice P-1004 (NACE Standard TM-0177-Method A) with a guaranteed
minimum threshold stress of 85 percent specified minimum yield
strength.
API T95
Minimum Yield Strength: 95,000 psi
Maximum Yield Strength: 110,000 psi
Minimum Tensile Strength: 105,000 psi
Hardness Requirement: 25.4 HRC maximum
Notes: API controlled yield strength grade, the same as API C95.
Generally for use in sour condensate wells. Extensive hardness testing
is required along with SSCC testing per NACE Standard TM-0177-Method A.
The minimum threshold stress required is 80 percent of specified minimum
yield strength.
API P110
Minimum Yield Strength: 110,000 psi
Maximum Yield Strength: 140,000 psi
Minimum Tensile Strength: 125,000 psi
Hardness Requirement: None
Notes: API grade for general use in deep wells. This grade is not generally considered suitable for sour condensate wells.
API Q125
Minimum Yield Strength: 125,000 psi
Maximum Yield Strength: 150,000 psi
Minimum Tensile Strength: 135,000 psi
Hardness Requirement: No limit specified - Hardness variation requirement
Notes: API grade for deep well service, not generally for use in sour
condensate wells. Quadrant hardness testing is required without any
specified limits other than the variation between readings. Impact
testing is required for each heat and/or lot. NDT inspection is required
with two methods of inspection (typically EMI and UT are performed on
this product).
V150
Minimum Yield Strength: 150,000 psi
Maximum Yield Strength: 180,000 psi
Minimum Tensile Strength: 160,000 psi
Hardness Requirement: None
Steel grade for use in deep well applications. Dimensions and inspection are in accordance with API 5CT Group 3 requirements.
Standards:
API Specification 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 11960:2011-06 (E). Petroleum and natural gas industries - Steel pipes for use as casing or tubing for wells.
ISO 13680-2010 Petroleum and natural gas industries-Corrosion-resistant
alloy seamless tubes for use as casing,tubing and coupling
stock-Technical delivery conditions
ISO/TR 10400:2007 Petroleum and natural gas industries -- Equations and
calculations for the properties of casing, tubing, drill pipe and line
pipe used as casing or tubing
GOST 632:1980 Casing pipes and couplings.
GOST 633-80 pumping and compression pipes-D, K, E, L
NORSOK M-703-CR Casing and tubing materials (Rev[1]. 1, Jan. 1996)
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
OCTG (Casing & Tubing)
•API 5CT Latest Edition
•OCTG from 1.660" to 30'' + respective couplings, crossovers and pup joints
•API Grades from H40 to Q125 and 13% CR
•ALL API Standard Weights
•API and Premium Joint Connections
•Special SS and HC grades
•CRA Grades
Section: Seamless & Welded
Sizes:
Outside Diameter: 1.660" - 30"
Grades:
H40, J55, K55, N80-1,N80-Q, L80-1, C90-1,C90-2, C95, T95-1,T95-2,T95-3, P110, Q125-1, Q125-2,Q125-3,Q125-4.
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:
Applicable Tests:
See our Standard Inspection Scope
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 Certificates:
Issued in accordance with API Specification 5CT Eighth Edition
Additional Third Party Inspection can also be performed on request.
A wide range of Casings and Tubing are available from Stock:
DIMENSIONAL & WEIGHT TOLERANCES
Outside Diameter (OD) up to 4" +.031", -.031"
4 1/2"+ +1%, -0.5%, not to exceed .125"
Wall Thickness +0, -12.5%
Weight single joint +6.5%, -3.5%
carload (>40,000#) +0, -1.75%
Drift diameter up to 2 7/8" OD (42" mandrel) d-3/32"
3 1/2" to 8 5/8" (6" mandrel) d-1/8"
9 5/8" to 13 3/8" (12" mandrel) d-5/32"
Straightness 4 1/2"+ 0.2% end-to-end (PE), .125" in 5' at each end
Length Range 1 casing 16-25'
Range 2 casing 25-34'
Range 3 casing 34-48'
Range 1 tubing 20-24'
Range 2 tubing 28-32'
pup joints (2,4,6,8,10 &12') +3", -3"
INSPECTION CLASSIFICATIONS
New Tubing/Casing
(and Plain End Drill Pipe)
*White Band: suitable for all inspections performed (incl. min. 87.5% body wall).
*Yellow Band: Repairable reject. 87.5% body wall remaining after
repair. Locate bands on either side and circle around defect.
*Blue Band: Imperfections of undetermined depth. Identified as above.
*Red Band: Defective length. Identified as above. Body wall defects must be cut out of tube.
Damaged pin or box ends marked with red bands next to pin or on coupling
Drift restrictions indicated by red bands on either side of restriction - just like other defects.
Tube classification bands appear in same location (box end) as on used material.
Many types of special casings and tubings including anticorrosion
casing and tubing, high collopse casing, high temperature casing,
premium connection casing and tubing have been successively developed
some of which have reached the level of world class.
● Application
● Casing for oil and gas well drilling
● Tubing for oil and gas extraction
● Product Type
● Seamless casing and coupling
● ERW casing
● Seamless tubing and coupling
● Anticorrosion casing and tubing
● High collapse casing
● High temperature casing
● Premium thread connection casing and tubing
● Pup-joint of casing and tubing
● Crossover of casing and tubing
● Features
● High precision in size and shape
● Good corrosion resistance
● High collapse strength
● Excellent comprehensive mechanical properties
● High connection strength and sealability
● Constant mechanical properties at high temperature
Internal Coating for Casing & Tubing
Generally, the internal coating for casing and tubing is made of
optimized epoxy phenolic resin. It has high impact and temperature
resistance, perfect edge coverage, extremely high glossiness and
flexibility, and excellent adhesion and abrasion resistance. The
combination of epoxy and phenolic formulations provides the superior
molecular interlinkage, and also the same bend resistance and torque
resistance as metal. The internal coating for casing and tubing is
suitable for extremely corrosive or high temperature environment, such
as chemical treatment wells, high temperature and high pressure
corrosive wells. What’s more, it can provide the capability of
resistance to scale, pitch and paraffin so as to promote flow
efficiency.
● Product Type
● Liquid modified epoxy phenolic resin
● Epoxy phenolic resin powder
● Features
● Smooth surface
● Excellent adhesion
● Excellent flexibility
● High acid & alkali proof
● Coating thickness: 125-250 μm
● Visual inspection: no run/pin holes/drops/bubbles
● High temperature resistance: up to 204 ℃ (400 ˚F)
● Application
● Casing and tubing of Injection water wells and wasted water wells
● Tubing and line pipe for acidizing
● Strengthened exploitation system and brine treatment system
Standard Outer diameter, mm Wall thickness. mm Strength class and steel grade Application
|
|
|
评论
发表评论