Senwell is a professional manufacturer and supplier of wide range of non-magnetic products, drilling stem tools, fishing tools, jarring tools, drill collar, cementing tools, milling tools, well head tools, accessory tools, down hole tools, oil mining equipment, drill equipment, well control systems and pipes.
- Product & Service name: drill collar; drill collar sizes for sale
- 2) Usage: Drill collars are used to provide weight on bit so that drill pipes are kept in tension. Especially drill collars can keep drill bits centralized and hole track by large rigidity.
3) Hard band: Arnco100XT, Arnco200XT and Arnco300XT; Botn1000, Botn3000, TCS8000, TCS-Titanium, Armacor M etc. Also we can make according to customers’ requirements.
Size: OD: 3 1/8”~11”; ID: 1 1/2” Min. Length:10’~31’
4) Full mechanical and chemical mill test are applied, hardness range: 285-341 BHN, impact value: 40ft.
5) Test reports: chemical composition, physical properties, mechanical testing based on client’s requirements.
6) Surface finish: turned and polished or fine finished
7) Package: seaworthy packing (wooden or steel case, or customers’ needs);
8) MOQ: 1 piece; well casing pipe
9) Supply ability: 10000 pieces per year
10) Payment terms: 30% T/T in advance, D/A, D/P; or 100% L/C.