Device for expanding pipes

PCT No. PCT/SU88/00238 Sec. 371 Date Aug. 2, 1990 Sec. 102(e) Date Aug. 2, 1990 PCT Filed Nov. 22, 1988 PCT Pub. No. WO90/05831 PCT Pub. Date May 31, 1990.The device is intended for expanding profile pipes set in a well for patching off a troublesome zone, and also for straightening crumpled casings...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	MELING, KONSTANTIN V, SAFONOV, JURY A, ABDRAKHMANOV, GABDRASHIT S, MIKHAILIN, JURY G, SALOMATIN, VALENTIN V, MUKHAMETSHIN, ALMAZ A, MINGAZOV, SALIKHZYAN M, BOGOMOLOV, RODION M
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS PUNCHING METAL TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PCT No. PCT/SU88/00238 Sec. 371 Date Aug. 2, 1990 Sec. 102(e) Date Aug. 2, 1990 PCT Filed Nov. 22, 1988 PCT Pub. No. WO90/05831 PCT Pub. Date May 31, 1990.The device is intended for expanding profile pipes set in a well for patching off a troublesome zone, and also for straightening crumpled casings. The device comprises a housing (1) having an expanding member (3) mounted thereon in bearings (4, 5) on a journal (2) extending at an acute angel to the longitudinal axis of the housing (1). The expanding member (3) is shaped as a spherical segment (9) having its external surface defined by alternating portions of a spherical surface (10) and the lateral surfaces of cylinders (11) whose geometric axes being to a plane perpendicular to the axis (13) of the journal (2).