Conductive detonating cord for perforating gun

US11385036B2 · kind B2 · utility

Assignee

• DynaEnergetics Europe GmbH · DE

Inventors

• Frank Haron Preiss · Bonn, DE
• Liam McNelis · Bonn, DE
• Thilo Scharf · Letterkenny, IE
• Christian Eitschberger · Munich, DE
• Bernhard Scharfenort · Troisdorf, DE

Key dates

• Filing date: Oct 21, 2020
• Grant date: Jul 12, 2022
• Expiry date: Nov 11, 2040

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F42D1/055
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A detonating cord for using in a perforating gun includes an explosive layer and an electrically conductive layer extending around the explosive layer. The electrically conductive layer is configured to relay a communication signal along a length of the detonating cord. In an embodiment, a protective jacket extends around the electrically conductive layer of the detonating cord. The detonating cord may be assembled in a perforating gun to relay a communication signal from a top connector to a bottom connector of the perforating gun, and to propagate a detonating explosive stimulus along its length to initiate shaped charges of the perforating gun. A plurality of perforating guns, including the detonating cord, may be connected in series, with the detonating cord of a first perforating gun in communication with the detonating cord of a second perforating gun.