Dynaenergetics Europe Gmbh

Dynamit Nobel Aktiengesellschaft

Rolf Rospek

Malte Veehmayer

Dimitri Riesen

Frank Haron Preiss

Helmut Zollner

Wilfried Krauthäuser

Pierre Corre

Aurellius Avanci

Uwe Gessel

An igniter for seismic prospection or for mining applications or for use in the crude oil and natural gas industries is described, including a detonator in which an explosive material, an igniting element and internal wires for initiating the igniting element are arranged, wherein the internal wires lead into a plug which is arranged at one end of the detonator. In order for the user of the igniter to be able to introduce external wires into the plug without having to strip the wires of insulation beforehand, and, in the plug, for the internal wires to be electrically connected to the external wires, without the external wires requiring any plug and socket connector or mating part of a plug and socket connector, the plug is designed as a multifunctional plug.

Igniter with a multifunctional plug

The invention relates to a packaging for a detonation cord that is used especially for igniting shaped charged perforators in perforation guns utilized in the oil and natural gas industry. According to the invention, the detonation cord is wound on one plane as a flat coil. Also disclosed is a method for examining whether a detonation cord has faulty points. Said method is characterized in that the detonation cord is subjected to an x-ray examination in the packaging before being delivered.

Packaging system for detonating cords for X-ray examination and safe shipping

The invention relates to a packaging for a detonation cord () that is used especially for igniting shaped charge perforators in perforation guns utilized in the oil and natural gas industry. According to the invention, the detonation cord () is wound on one plane as a flat coil. Also disclosed is a method for examining whether a detonation cord () has faulty points. Said method is characterized in that the detonation cord () is subjected to an x-ray examination in the packaging before being delivered.

A perforation gun includes an external gun barrel in the interior of which perforators are located which can be ignited via a fuse extending through the gun barrel and which, after ignition, pierce the gun barrel with perforation holes. A sliding tube or a swellable two-component foam is provided which automatically closes the perforation holes. The swellable two-component foam can be provided in a cartridge located inside the gun barrel and can be broken up by the ignited fuse, thereby allowing foam to escape from the cartridges, allowing it to swell and obliterate the perforation holes. The sliding tube can be displaced after perforation by an adjusting device by at least the diameter of the perforation hole, the sliding tube being located coaxially between the perforators and the gun barrel.

Perforation gun system for sealing perforation holes

A method for setting and igniting a charge of explosives for geological investigations, comprising the following steps: a hole ( ) is drilled in the ground ( ) which is to be investigated; an explosion chamber ( ) is hollowed out, whereby said explosion chamber has an expanded form in relation to the bore hole ( ) at the end of said bore hole ( ); an ignition element ( ) and an explosive container ( ) containing an explosive in a protective blister ( ) surrounding the ignition element are lowered down into the explosion chamber ( ); the explosive ( ) is pressed out of the explosive container ( ) into the explosive chamber ( ) and the ignition element ( ) is ignited In comparison with conventional methods, the inventive method provides for a considerably smaller diameter of bore hole, whereby said bore hole is substantially easier to drill.

Method for setting and igniting a charge of explosives for geological investigations and explosive device associated therewith

A detonating system includes a detonator within a thermal insulating container. In order for the detonator, especially an electronic detonator, to be usable at higher temperatures, the detonator is surrounded by the thermal insulating container especially a Dewar vessel.

Growing community of inventors

Edemissen, Germany

Rolf Rospek