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1. (WO1992009847) PIPELINE PIG AND METHOD OF PIPELINE INSPECTION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/009847 International Application No.: PCT/GB1991/002070
Publication Date: 11.06.1992 International Filing Date: 22.11.1991
Chapter 2 Demand Filed: 28.05.1992
IPC:
E21B 47/022 (2012.01) ,F17D 5/06 (2006.01) ,G01M 7/00 (2006.01)
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
47
Survey of boreholes or wells
02
Determining slope or direction
022
of the borehole, e.g. using geomagnetism
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
17
STORING OR DISTRIBUTING GASES OR LIQUIDS
D
PIPE-LINE SYSTEMS; PIPE-LINES
5
Protection or supervision of installations
02
Preventing, monitoring, or locating loss
06
using electric or acoustic means
G PHYSICS
01
MEASURING; TESTING
M
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
7
Vibration-testing of structures; Shock-testing of structures
Applicants:
HUNT, Hugh, Edmund, Murray [AU/GB]; GB
KÖPKE, Uwe, Gerhard [AU/GB]; GB
Inventors:
HUNT, Hugh, Edmund, Murray; GB
KÖPKE, Uwe, Gerhard; GB
Agent:
GILL JENNINGS & EVERY; 53/64 Chancery Lane London WC2A 1HN, GB
Priority Data:
9025394.922.11.1990GB
Title (EN) PIPELINE PIG AND METHOD OF PIPELINE INSPECTION
(FR) RACLEUR DE PIPE-LINES ET PROCEDE D'INSPECTION DE PIPE-LINES
Abstract:
(EN) A pipeline inspection apparatus includes a pipeline pig (1) which has a shaker (20) for causing the pig to vibrate in one or more of the vertical, longitudinal, lateral, bending and torsional senses. The vibrations are transmitted into the wall of a pipeline (2) through which the pig is moved and the vibration response of the pipeline is measured by accelerometers (50-53) in the pig for detecting one or more of the vertical, longitudinal, lateral, bending and torsional motions of the pig (1). For displaying and/or recording the measured data in a form which can be used to identify variations in the structural condition of the pipeline, a data acquisition system (38) and computer (36) are used.
(FR) Un appareil d'inspection de pipe-lines comprend un racleur (1) équipé d'un vibreur (20) qui fait osciller le racleur dans l'un ou plusieurs des sens vertical, longitudinal, latéral, de flexion et de torsion. Les vibrations sont transmises à la paroi du pipe-line (2) traversé par le racleur, et la réponse aux vibrations est mesurée par des accéléromètres (50 - 53) disposés dans le racleur et qui détectent l'un ou plusieurs des mouvements vertical, longitudinal, latéral, de flexion et de torsion du racleur (1). Un système de saisie de données (38) et un ordinateur (36) sont utilisés pour l'affichage et/ou l'enregistrement des mesures de données sous une forme permettant d'identifier les variations de l'état de structure du pipe-line.
Designated States: AU, CA, JP, NO, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
NO19931861EP0558674US5385049JPH06503151CA2095625DE000069111616
AU1991089137