STANDARD DRILL COLLAR SERVICES

SERVICE

DESCRIPTION

VISUAL BODY INSPECTION

A thorough visual inspection of possible noticeable external damages inflicted is performed. Other types of flags will be external corrosion, laps, and straightness.

VISUAL THREAD INSPECTION (VTI)

Both pin and box ends are thoroughly cleaned and visually evaluated for any damages, such as dents, corrosion, galled threads, etc.

REFACING

Seals found to be damaged or corroded are refaced to the limitation of API RP-7G.

OPTIONAL DRILL COLLAR MAINTENANCE SERVICES

SERVICE

DESCRIPTION

HARDBANDING

(Drill Collar)

In order to protect the clients' drll collars from excessive wear while drilling in abrasive environments, hardbanding is applied in 1 inch bands around the circumference of the both ends of the joint. Various mesh sizes of tungsten can be applied with the band. As an alternative to tungsten, Amosco is also capable of applying Pinnacle Pinnchrome and Arnco 200XT. The application reduces casing wear while protecting the tool joint of the drill pipe.

BUILD-UP

(Drill Collar)

Controlled automatic welding procedures are used to build-up the outside diameter of worn tool joints to their original size. Instead of scrapping drill collars whose OD's are below specification, applying the same concept as hardbanding is able to literally reconstruct the OD of your tool joints back to specification, thus salvaging the premium pipe body and saving the client money.

STRAIGHTENING

Bent pipe is straightened using a ram-type, hydraulic press.

CLEANING (Internal / External)

Wire brushing or Rattling to remove rust, scale and other debris.

COATING (Internal / External)

A thin rust preventative coating is applied internally or externally to maintain the integrity of the casing.

MILL SLOTTING

Mill slotting is performed by cutting a round or elongated slot into the body or tool joints of drill stem components. In order to cut into and along the pipe, a drill specifically designed for this use is employed. Like the device used for hardness testing, the size and weight of the slotted machine allows our operators to go on-site and perform the job at the clients location. Due to the nature of this service, client specifications are to be followed providing that it does not force the material to fall out of API specifications.

OPTIONAL DRILL COLLAR INSPECTION SERVICES

SERVICE

DESCRIPTION

TH HILL DS-1 SERVICES

If the customer's requires DS-1 inspection, AMOSCO can inspect the customer's assets in accordance with TH Hill DS-1 Specifications rather than standard API RP-7G Specifications.

HOT-SPOT TESTING

(for Monel Materials)

These hot spots can accurately track down the small changes in magnetic flux density caused by variations in permeability.  Using this machine, coupled with linear amplifiers and properly biased, the sensors form an extremely sensitive detector set that not only locate the hot spots caused by improper heating, curing or processing, but also evaluates their security.

ULTRASONIC WALL THICKNESS (UT)

API THREAD GAUGING

Using various API gauges, such as thread taper, lead and depth to measure the connection in order to verify the connection is within API specifications.