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), Journal Name: J. Pet. Technol.; (United States) Vol. 36:7; ISSN JPTJA
• Country of Publication: United States
• Language: English

Related Subjects

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