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Products
Brand: Deris
Material:: AISI 4145H
OD:: 209.9mm (8 1/4 Inch)
ID:: 71.4mm (2 13/16 Inch)
Connection:: 6 5/8" REG
Bending Strengthratio:: 2.93:1
Bevel Diameter: 195.7 Mm
Length: 9150 Or 9450 Mm
Product Name: Spiral Drill Collars
Tensile Strength BMpa: 930
Hardness(Brinell): 285-341
Packaging: bundle or as per client demands
Productivity: 150pcs per Month
Transportation: Ocean,Land,Air,Express
Place of Origin: Hebei
Supply Ability: 150pcs per Month
Certificate: API
HS Code: 8431431000
Port: Tianjin,Beijing,Shanghai
Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,FCA,CPT
It reduces the contract area with the wellface and the steering resistance,which can prevent differential pressure sticking.
The Drill Collar is according to SY/T5144-1997 and API 7-1 " Specification for Rotary Drill Stem Elements" standard, the material uses AISI 4145H alloy structural steel to carry on the deep hole processing, before thread and spiral groove processing against the total cross-section to quenching and the tempering heat treatment. Standard Drill Collar After thread examination qualified, and carries on cold rolling processing to the thread root and the slips, reduces the thread part fatigue failure to increase the drill collar service life.
Drill collar dimension Specifications Threadtype D/OD D/ID L mm Taiwan shoulder
chamfer diameter Reference
bending
strength ratio mm in mm in DF mm NC23-31 79.4 3 1/8 31.8 1 1/4 9150 76.2 2.57:1 NC26-35(2 3/8IF) 88.9 3 1/2 38.1 1 1/2 9150 82.9 2.42:1 NC31-41(2 7/8IF) 104.8 4 1/8 50.8 2 9150or9450 100.4 2.43:1 NC35-47 120.7 4 3/4 50.8 2 9150or9450 114.7 2.58:1 NC38-50(3 1/2IF) 127.0 5 57.2 2 1/4 9150or9450 121.0 2.38:1 NC44-60 152.4 6 57.2 2 1/4 9150or9450 144.5 2.49:1 NC44-62 158.8 6 1/4 57.2 2 1/4 9150or9450 149.2 2.91:1 NC46-62(4IF) 158.8 6 1/4 57.2 2 13/16 9150or9450 150.0 2.63:1 NC46-65(4IF) 165.1 6 1/2 71.4 2 1/4 9150or9450 154.8 2.76:1 NC46-65(4IF) 165.1 6 1/2 57.2 2 13/16 9150or9450 154.8 3.05:1 NC46-67(4IF) 171.4 6 3/4 71.4 2 1/4 9150or9450 159.5 3.18:1 NC50-67(4 1/2IF) 171.4 6 3/4 57.2 2 13/16 9150or9450 159.5 2.37:1 NC50-70(4 1/2IF) 177.8 7 71.4 2 1/4 9150or9450 164.7 2.54:1 NC50-70(4 1/2IF) 177.8 7 57.2 2 13/16 9150or9450 164.7 2.73:1 NC50-72(4 1/2IF) 184.2 7 1/4 71.4 2 13/16 9150or9450 169.5 3.12:1 NC50-77 196.8 7 3/4 71.4 2 13/16 9150or9450 185.3 2.70:1 NC50-80 203.2 8 71.4 2 13/16 9150or9450 190.1 3.02:1 6 5/8REG 209.6 8 1/4 71.4 2 13/16 9150or9450 195.6 2.93:1 NC61-90 228.6 9 71.4 2 13/16 9150or9450 212.7 3.17:1 7 5/8REG 241.3 9 1/2 76.2 3 9150or9450 223.8 2.81:1 NC70-97 247.6 9 3/4 76.2 3 9150or9450 232.6 2.57:1 NC70-100 254.0 10 76.2 3 9150or9450 237.3 2.81:1
AB Type Drill collar mechanical properties | |||||||||
OD scope | Yield strength Mpa | Tensile strength Mpa | Elongation % | Brinell har dness HB | Charpy im pact J | ||||
mm | in | ||||||||
79.4-174.6 | 3 1/8-6 7/8 | ≥758 | ≥965 | ≥13 | ≥285 | ≥54 | |||
177.8-279.4 | 7-11 | ≥689 | ≥931 | ≥13 | ≥285 | ≥54 |
My company information
Hejian Deris Petroleum drilling equipment Co., Ltd was established in 2000, located in Hejian City Junziguan Industrial Park, next to National Highway 106, close to Tianjin Port, Beijing Airport, convenient transportation and superior location. The company covers an area of 30 acres and a factory building of 15,000 square meters.
Specializing in the production and sales of Drilling Tools such as Tricone Bit, PDC drill bits, Hole Opener, roller cone drills, hammer and hammer bit, drill pipes, drill collars, etc. A professional design, production, inspection and foreign trade sales team has been established. .
Products are sold to the United States, Canada, Russia, Kazakhstan, Iran, Qatar, Sweden, Germany, Australia, Singapore, Mexico, Colombia and other more than 30 countries. The sales volume reached 15,000 pieces of the roller cone, and the three-cone drill bit 5000 achieved.
Our company is planning to build a new factory, adding 3 production lines, CNC machine tools, drilling machines, milling machines, quality testing equipment, etc. to ensure quality and timely delivery. Make sure that every quality product meets customer needs.
Certificate
Package and shipping
Package Type : wooden case ,also be packaged according to customers requirement
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.