Kelly Square Or Hexagonal - Chinaprice: contact company for price
energy from the rotary table to the bit in the bottom of the hole.
TIANHE precision-machined Kelly is a heavy square or hexagonal steel bar
supported by the swivel through the rotary table and connected to the
first joint of drill pipe in the drill string.
TIANHE Kelly has been approved by the NS-1 certification. Straightness is the key manufacturing process. Straightness is checked before, during and after each machining operation. Flats are precision-milled to API and NS-1 specifications. All milling is performed on specially designed rigid Kelly mills. Each TIANHE Kelly is furnished with a pressed steel thread protectors.
Features and Benefits
- Manufactured from AISI 4145H-modified, fully heat-treated alloy steel with a Brinell hardness range of 285-341 and a minimum average Charpy impact value of 40 ft-lbs;
- Ends and drive sections, IDs and connections machined and inspected to API and NS-1 specifications;
- Kelly bars ultrasonically inspected over full length and section;
- Shipped in a protective steel-cased scabbard;
When ordering Please specify:
- Kelly type (square or hexagonal);
- Nominal size and overall length;
- Upper and lower Connections.
- Posted By: Tianhe Oil Group
- Phone: +188.8.131.520.83
- Address: No.2999 ,XinYang Road,FengXian District, Shanghai, China
- Website: http://en.tianheoil.com/index.html
Published date: August 2, 2013 -
- Business Description: Tianhe Oil Group,originally established in 1973, is a comprehensive
enterprise of equipment manufacturing and oilfield service providing.
We're specialized in innovating, manufacturing and sales of drill and
petroleum extraction tools, equipments and oil field services.
Tianhe Oil Group is a council member of CPEIA (China Petroleum and Equipment Industry Association), having been confered as a national Hi Tech company. Tianhe is a well known Chinese trademark. We've been certified in compliance with ISO, API, NS 1, and HSE management system,we have now high end machining centers like CNC turning centers from Mazak,all in one MILLTURN center from WFL Millturn Technologies GmbH&Co.KG as well as a wide range of other sophisticated tooling equipments.
A strong domestic sales network has been established,covering all oilfields of CNPC, SINOPEC and CNOOC. Specifically today, we're exporting to 45 countries around the globe, overseas trading amount has topped over 80% of our business.
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