OCTG is the abbreviation of Oil Country Tubular Goods, it mainly refers to the piping products that are applied in oil and gas production (drilling activities). OCTG pipe is normally manufactured based on API or related standard specifications. It could also be taken as a collective name for Drill pipe, Steel Casing Pipe and Tubing pipe, Couplings, Connections, and Accessories, used in petroleum industries both onshore and offshore.
According to the API (American Petroleum Institute) standardized specifications, through the control of the chemical properties and adopting different heat treatments, OCTG pipe is classified into different performances material with more than ten grades.
Casing Pipe
Outer diamater(OD):114.30mm-508mm
Wall thickness(WT):5.21mm-16.13mm
Length:R1; R2; R3
Tubing Pipe
Outer Diameter (OD):48.26mm-114.30mm
Wall Thickness(WT):3.18mm-16mm
Length:R1, R2, R3
Sucker rod
Size:5/8'', 3/4'', 7/8'', 1'', 1 1/8''
Length:7.62m-10.00m
Grade:C, D, K, KD,H,HY, HL, S-87,
Coupling
Size:Tubing Coupling : 1.9'' - 4-1/2''
Casing Couping : 4-1/2'' - 13-3/8''
Pup Joint
Outside Diameter ：2-3/8''（60.3mm） - 4-1/2(114.60mm)
Lengths :2,3,4,6,8,10 12 ft
Casing Couping : 4-1/2'' - 20'
Lengths:2,3,4,6,8,10 12 ft
Drill Pipe
OD: 60.32mm-168.28mm
WT: 6.45-12.7mm
LENGTH: R1, R2, R3
Drill Collars
Size：Outer diameter:3 1/8"-11"
Length：30Ft / 31Ft / 43Ft/R1~R3
Connection type:NC , REG , FH, IF
Screen Pipe
Size:OD:114-219mm*5-22mm
The external diameter is ranged from 89mm to 1200mm.
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