An automated tool-joint inspection device for the drillstring

Journal Article · Fri Jun 01 00:00:00 EDT 1984 · J. Pet. Technol.; (United States)

DOI:https://doi.org/10.2118/11393-PA· OSTI ID:6295558

Moyer, M C; Dale, B A; Kusenberger, F N

This paper discusses the development of an automated tool joint inspection device-i.e., the fatigue crack detector (FCD), which can detect defects in the threaded region of drillpipe and drill collars. Inspection tests conducted at a research test facility and at drilling rig sites indicate that this device can detect both simulated defects (saw slots and drilled holes) and service-induced defects, such as fatigue cracks, pin stretch (plastic deformation), mashed threads, and corrosion pitting. The system operates on an electromagnetic-flux leakage principle and has several advantages over the conventional method of magnetic particle inspection.

• Research Organization: Exxon Production Research Co.
• OSTI ID: 6295558
• Journal Information: J. Pet. Technol.; (United States), Vol. 36:7
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
DRILL PIPES
THREADED JOINTS
ELECTROMAGNETIC TESTING
INSPECTION
COMPARATIVE EVALUATIONS
CRACKS
DEFORMATION
DETECTION
FATIGUE
MAGNETIC FLUX
MEASURING INSTRUMENTS
PIPE JOINTS
PITTING CORROSION
CHEMICAL REACTIONS
CORROSION
DRILLING EQUIPMENT
EQUIPMENT
JOINTS
MATERIALS TESTING
MECHANICAL PROPERTIES
NONDESTRUCTIVE TESTING
PIPES
TESTING
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing