Device and method for positioning a detonator within a perforating gun assembly
AssigneesDynaEnergetics GmbH & Co. KG, DynaEnergetics US, Inc.
InventorsGernot Uwe Burmeister, Thomas Keller Bradfield, Christian Eitschberger, Frank Haron Preiss, Thilo Scharf, Liam McNelis
Life of this patent
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Abstract
According to an aspect, a detonator positioning device is provided for use with a wireless detonator in a perforating gun assembly. The detonator positioning device includes a single mechanism for physical electrical connection, while the remaining electrical connections are made via electrically contactable components. A method of assembling the perforating gun assembly is also provided, including a detonator positioning device configured to receive and hold the wireless detonator.
Claims16
A detonator positioning device for positioning a wireless detonator in a perforating gun assembly, the device comprising:
- a cylindrical body comprising an open end, a closed end, and a central bore adapted for receiving the detonator, the central bore extending along at least some of a length of the cylindrical body, the central bore including an enlarged bore portion adjacent the open end of the cylindrical body;
- a plurality of arms extending toward the open end of the cylindrical body and at least partially enclosing the enlarged bore portion of the central bore, each of the plurality of arms adapted to retain a detonator head of the detonator when the detonator is positioned within the enlarged bore portion of the central bore;
- and
- a plurality of legs extending from the cylindrical body and toward the closed end of the cylindrical body, each of the plurality of legs adapted to position the cylindrical body in the perforating gun assembly.
A perforating gun assembly comprising:
- a perforating gun housing;
- a wireless detonator;
- and
- a detonator positioning device for positioning the perforating gun housing, the detonator positioning device comprising:
- a multi-part cylindrical body comprising at least a first part and a second part, wherein the first part is removably connected to the second part of the cylindrical body to form an assembled cylindrical body, each of the first part and the second part including at least a first portion and a second portion, the assembled cylindrical body comprising an open end, a closed end, and a central bore adapted for receiving the detonator, the central bore extending along at least some of a length of the assembled cylindrical body, and the central bore including an enlarged bore portion adjacent the open end of the assembled cylindrical body,
- a plurality of arms extending toward the open end of the assembled cylindrical body and at least partially enclosing the enlarged bore portion of the central bore, each of the plurality of arms comprising a retainer adapted to retain a detonator head of the detonator when positioned within the enlarged bore portion of the central bore, and
- a plurality of legs extending from the assembled cylindrical body and toward the closed end of the assembled cylindrical body, each of the plurality of legs comprising a protrusion extending away the assembled cylindrical body and adapted for positioning the assembled cylindrical body in the perforating gun housing.
Dependencies are inferred from the claim text.