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 offers the complete range of api casing including extreme line and threaded and coupled. The following are its salient features:
1. fine quality steel is used for the manufacture of casing.
2. each step of the manufacturing process is performed with the highest degree of accuracy to meet or exceed api specifications as well as the industry standards.
3. plain end pipe is upsetted [where required] and heat-treated by the quench and temper process.
4. each heat lot is tested for mechanical properties.
5. the heat treated casing is 100% inspected nondestructively prior to threading.
6. threading on the pipe and the couplings is done on cnc machines
7. couplings are bucked-on to the pipe at their specific designed buck-on torques which is recorded.
8. all casing are subjected to hydrostatic testing as required by api specifications.
9. finished casing is externally coated with rust preventive varnish, attached with thread protectors prior to shipment.
10. complete documentation is provided with each shipment detailing the full quality control records.
