Oilfield perforator designed for high volume casing removal

A perforating tool (40) includes a charge holder (60) connected to a work string (112) and a perforator (10) fixed in a charge holder disposed along the work string. The perforator includes a cylindrical case (12), an explosive material, a metal cap (14), and a detonating cord (46). The case has a b...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Kinsey, James, Clay, Matthew C, Geerts, Shaun
Format:	Patent
Sprache:	eng
Schlagworte:	AMMUNITION BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION FIXED CONSTRUCTIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS WEAPONS
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Beschreibung
Zusammenfassung:	A perforating tool (40) includes a charge holder (60) connected to a work string (112) and a perforator (10) fixed in a charge holder disposed along the work string. The perforator includes a cylindrical case (12), an explosive material, a metal cap (14), and a detonating cord (46). The case has a bulkhead (50) at a first end, an open mouth at a second end, and an interior volume. The first end includes a post (54) having a slot (56). The explosive material is disposed in the interior volume. The metal cap (14) covers the open mouth of the case and has a disk section (20) defined by a separator ring (22). The separator ring has a structurally weakened zone (24) that encircles the disk section. The detonating cord is received in the slot of the post.