BTC STC LTC Thread Coupling according
Kingwell tube and tool joint inspections are carried out in accordance with standards like API Inspections of drill pipes, casings, tubings or tools are usually performed based on the following international standards:
· API, API 5CT, API 5L
BTC STC LTC Thread Coupling Detail:
Visual Tube Body Inspection | A thorough visual inspection of possible noticeable external damages inflicted is performed; most damages encountered arise from handling of the casing, such as major dents and mashes. Other types of flags will be external corrosion, laps, and straightness. |
Visual Thread Inspection | Thread Protectors are removed and both pin and box ends are thoroughly cleaned and visually evaluated for any obvious defects or mechanical damages, such as dents, corrosion, galled threads, etc. |
API Drifting (Full Length) | Drift mandrels conforming to API Specifications are passed through the full length of each tube to assure compliance with API internal diameter specifications. If a mashed or dented area prevents drift, the location is noted on the inspection report and marked physically on the pipe. |
Special Clearance Drift – Full Length | Special clearance drift mandrels, furnished by the customer, are passed through the full length of each tube to determine special clearances on the internal diameter. This is not an API inspection and is usually performed to assure passage of special tools or oversize bits. |
Magnetic Particle Inspection (MPI) | Pipe is magnetized with a DC magnetizing coil with variable current to provide active longitudinal magnetization for detection of transverse flaws. |
Electromagnetic Inspection (EMI) | Buggy Inspection Unit is used for transverse defect inspection. |
Hardness Testing | Portable Hardness Testers are utilized to perform hardness reading on the pipe. |
Wall Thickness Measurements | Ultrasonic Measurement: Ultrasonic wall thickness tests are utilized to determine the minimum and maximum wall thickness at any one area on a tube. A test consists of taking as many circumferential measurements as required to determine the minimum and maximum wall thickness in one area. |
API Thread Gauging | API eight round and buttress threads are gauged with mechanical instruments to determine compliance on taper, lead and height. At the same time, the threads are examined for visual defects. |
Company Profile:
Xi'an Kingwell Oilfield Machinery Co.,Ltd is a highly reputable supplier for oilfield equipment and services to Oil & Gas industries and provide complete solutions.
With over 10 years developing, we were developed from the beginning drilling service to manufacture factory who produce OCTG, DST tools and Solid Control products
KINGWELL have experienced team, stronger enough to meet any challenge, we do believe honest is the base of business and cooperation, our aim is to build solid relationship with any part of honest. kingwell can provide highly efficient services to its clients resulting in accurate and timely deliveries at the best prices.
It is a professional supplier for oilfield products according to the API standard. We exporting ALL KINDS OF OILFIELD MACHINERY AND TOOLS with super Quality and Competitive Price in CHINA.
Packaging: wood case or steel carton
Product delivery
Payment:TT/LC:30% advance payment.70%before shipment
Warranty: Warranty period is 1 year after installation.
Origin: China
