TPUS is able to provide a variety of Drill Collar related services ranging from the
Basic/Standard Maintenance Drill Collar Services to the more critical inspection
services, depending on the client requirements.
A thorough visual inspection of possible noticeable external damages inflicted is performed. Other types of flags will be external corrosion, laps, and straightness.
Both pin and box ends are thoroughly cleaned and visually evaluated for any damages, such as dents, corrosion, galled threads, etc.
Seals found to be damaged or corroded are refaced to the limitation of API RP-7G.
If the customer's requires DS-1 inspection, TPUS can inspect the customer's assets in accordance with TH Hill DS-1 Specifications rather than standard API RP-7G Specifications.
Wall thickness is verified by taking random ultrasonic readings or during EMI Inspection to verify and prove-up areas in question.
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.
Wire brushing, water bay or Rattling to remove rust, scale and other debris.
A thin rust preventative coating is applied internally or externally to maintain the integrity of the casing.
