Booster charge holder for an initiator system
AssigneeDynaEnergetics Europe GmbH
InventorJoerg Bergmann
Life of this patent
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Abstract
According to some embodiments, a holding device for a detonation initiation system is disclosed. The holding device includes an initiator holder having a longitudinal internal cavity. The longitudinal internal cavity is configured to retain an initiator and an electrical cable in electrical contact with the initiator. The holding device further includes a plurality of retention fingers configured for retaining a shaped charge adjacent the initiator. The plurality of retention fingers define a shaped charge receiving portion that may be configured to receive shaped charges of different shapes. The holder may be formed from a thermoplastic material.
Claims17
A holding device for a detonation system, the holding device comprising:
- an initiator holder having a first end, a second end opposite the first end, and a longitudinal internal cavity formed within the initiator holder and extending from the first end to the second end, wherein the internal cavity is configured for retaining an initiator and an electrical cable, the initiator holder including a first longitudinal half-section, a second longitudinal half-section, an external surface, and an internal wall that defines the internal cavity;
- a top clip positioned on the external surface adjacent the second end of the initiator holder and configured for urging the first longitudinal half-section and the second longitudinal half-section radially inward, wherein the internal wall has a portion adjacent the top clip that frictionally retains the electrical cable;
- and
- a plurality of retention fingers extending from the first end of the initiator holder and configured for retaining a shaped charge within the holding device.
A holding device for a detonation system, the holding device comprising:
- an initiator holder configured to receive an initiator and having a first end, a second end opposite the first end, a longitudinal internal cavity formed within the initiator holder and extending from the first end to the second end, a first longitudinal section, a second longitudinal section, an external surface, and an internal wall that defines the internal cavity;
- a top clip positioned on the external surface adjacent the second end of the initiator holder and configured for urging the first longitudinal section and the second longitudinal section radially inward, wherein the internal wall has a portion adjacent the top clip that frictionally retains an electrical cable;
- and
- a shaped charge holder configured to receive a shaped charge, wherein the shaped charge holder extends from the initiator holder and is aligned with the initiator holder such that the initiator is longitudinally aligned with a back wall portion of the shaped charge, and the shaped charge holder comprises a plurality of fingers configured to retain the shaped charge therebetween.
A method of detonating an explosive emulsion in a borehole, the method comprising:
- lowering a holding device housing an initiator and a shaped charge into a borehole containing an explosive emulsion;
- activating the initiator;
- initiating the shaped charge in response to activating the initiator;
- and
- detonating the explosive emulsion in response to initiating the shaped charge, wherein the holding device includes:
- an initiator holder configured to receive the initiator, the initiator being connected to an electrical cable that extends from the holding device, the initiator holder having a first end, a second end opposite the first end, a longitudinal internal cavity formed within the initiator holder and extending from the first end to the second end, a first longitudinal section, a second longitudinal section, an external surface, and an internal wall that defines the internal cavity;
- a top clip positioned on the external surface adjacent the second end of the initiator holder and configured for urging the first longitudinal section and the second longitudinal section radially inward, wherein the internal wall has a portion adjacent the top clip that frictionally retains the electrical cable;
- and
- a shaped charge holder connected to the initiator holder, the shaped charge holder having a plurality of retention fingers extending from the initiator holder and configured for retaining the shaped charge within the holding device.
Dependencies are inferred from the claim text.