Pipe Inspection Services
|Visual Tube Body Inspection
||A thorough visual inspection of pipe
external surface for possible noticeable damages, such as dents, mashes
and corrosion/ pits, shall be performed from upset to upset. Visual
inspection includes internal end area of each tube for service induced
defects. The tubes are checked for 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.
Thread profile gages are used to estimate the visible gaps at any
of the flanks or thread roots.
API Dope is applied to the threads and thread protectors are installed.
The dope shall be supplied by the customer.
|OD Gauge (Full Length)
||Full length mechanical measurement of outside
diameter is performed for identification of external wear, dents,
mashes, slip area and stress induced diameter variations.
|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
|Ultrasonic Inspection (UT)
||Ultrasonic examination of upset areas for the
detection of transverse and three dimensional flaws on the inside
and outside surface of the tube is performed. The critical area is
||Portable Hardness Testers are utilized to perform
hardness reading on the pipe.
|Wall Thickness Measurements
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.
Measurement: Micrometer measurements are utilized in measuring
the wall thickness on the ends of plain end pipe.
Wall Verification: Ultrasonic wall thickness test to verify
that the tube body, in general, satisfies nominal wall thickness requirements.
|Tool Joints & Upsets Inspection
Transverse external magnetic particle inspection (excluding threads) is performed
to detect external fatigue cracks and pits.
|Associated Tool Joint
|Critical Area Inspection
||Upsets and 24 inches of pipe body are internally
inspected with magnetic particle to detect internal transverse fatigue
|Tool Joint OD Measurement
||The Tool Joint OD is callipered to API RP 7G or
customer specification to identify undersized (worn) tool joints.
|Shoulder (Face) Examination
||Tool Joint faces are visually examined for defects
affecting pressure holding capacity for galls, nicks, washes and fins.
|Tool Joint Marking Check
||Tool Joints are checked for manufacturer’s
|Shoulder Width Measurement
||A mechanical gauge is used to measure the width
of tool joint shoulders and to detect non-uniform wear resulting from
crooked drill pipe.
|Box Swell Measurement
||Inside diameter of box counter bore is mechanically
measured to detect dimensional change resulting from excessive torque.
|Thread Profile (Pin Stretch Examination)
||The connections are mechanically gauged using
taper, lead and height gages to detect galled or stretched threads,
flank wear and sharp crowns.
|Magnetic Particle Inspection Box & Pin Threads
||Box and Pin threads are cleaned and inspected
by either magnetic particle or black light to detect transverse cracks
in thread roots.
||Seals found to be damaged or corroded are refaced
to the limitation of API RP 7 G.
|Drill Pipe Maintenance
|Cleaning/ OD Sand Blasting
||Sand Blasting of otside surface of the pipe, wire
brushing and rattling to remove rust, scale and other debris.
||Internal cleaning with reamers to remove cement
residual and other solidified material in the ID of the pipe.
||Bent pipe is straightened using a ram type hydraulic
||A rust preventive coating is applied to maintain
the integrity of the drill pipe.
Hill DS 1 Inspection Services
|If the customer requires DS-1 inspection,
Omega Pipe Inspection & Services can perform the inspection accordingly.