Oil country tubular limited [octl] processes oil country tubular goods required for the oil drilling and exploration industry. Octl`s product range consists of drill pipe, heavy weight drill pipe, drill collars, production tubing, casing, tool joints, couplings, pup joints, nipples, subs, and cross overs. Oil country tubular limited has been assessed and certified by the american petroleum institute quality registrar [apiqr] as being in compliance with iso 9001:2000 quality system. Octl sleeve stabilizer consists of mandrel on which a sleeve is simply made up by tongs or sleeve breaker. The octl sleeve stabilizer provides easy sleeve replacement when changing hole size or when they are worn out of gage. The following are its unique technical features:
1. mandrel is made from aisi 4140/ 4145h modified alloy steel
2. fully heat treated to a brinell hardness range of 285 - 341
3. has an izod impact strength of minimum 40 ft-lbs.
4. connections are machined and finished according to api specifications.
5. thread roots are cold rolled after machining, phosphatized to prevent galling during initial make-up, and installed with pressed steel thread protectors.
6. sleeve is an integral casting designed for easy make-up to the mandrel
7. hardfacing of the blades of the sleeves is done to increase the tool life.
8. octl offers a range of hardfacing materials to suit different drilling conditions.
9. sizes 17 1/2" and smaller feature three spiral blades.
10. larger sizes have four straight blades.
11. annular flow area is maximized on all sizes to ensure adequate circulation area.
