Abstract: A perforating tool includes an encapsulated shaped charge that has a bulkhead with a reduced wall thickness section, a plate having a shallow recess, and a detonating cord having an energetic core. The energetic core forms the plate into an explosively formed perforator when detonated. The plate is positioned to direct the explosively formed perforator into the reduced wall thickness section.

Abstract: A perforating tool includes a charge holder connected to a work string and a perforator fixed in a charge holder disposed along the work string. The perforator includes a cylindrical case, an explosive material, a metal cap, and a detonating cord. The case has a bulkhead at a first end, an open mouth at a second end, and an interior volume. The first end includes a post having a slot. The explosive material is disposed in the interior volume. The metal cap covers the open mouth of the case and has a disk section defined by a separator ring. The separator ring has a structurally weakened zone that encircles the disk section. The detonating cord is received in the slot of the post.

Abstract: An initiation block for connecting a detonator with a detonating cord has a body that includes opposing first and second faces and a first and a second chamber extending between the opposing faces. The first chamber is formed by a first bore serially arranged with a second bore, which is shaped to seat the detonator adjacent to the second face. The second chamber is parallel with the first chamber and shaped complementary to the detonating cord. A passage provides communication between the first chamber and the second chamber. A booster is positioned in the first bore, proximate to the first face, and along the passage. The body further has an opening that provides communication between an exterior of the body and a portion of the chamber between the booster and the detonator.

Abstract: An apparatus for activating a wellbore tool may include a first sub, gas transfer sub, and a second sub. The first sub has an igniter that generates a flame output that ignites a power charge. The power charge generates a high pressure gas when ignited by the flame output. The gas transfer sub has a first end receiving a portion of the power charge, a longitudinal bore, and a plurality of flow passages radiating from the longitudinal bore. The flow passages provide fluid communication between the longitudinal bore and the first sub. The second sub includes a shaft having a first end connectable with the gas transfer sub.

Abstract: A perforating tool includes a charge holder connected to a work string and a perforator fixed in a charge holder disposed along the work string. The perforator includes a cylindrical case, an explosive material, a metal cap, and a detonating cord. The case has a bulkhead at a first end, an open mouth at a second end, and an interior volume. The first end includes a post having a slot. The explosive material is disposed in the interior volume. The metal cap covers the open mouth of the case and has a disk section defined by a separator ring. The separator ring has a structurally weakened zone that encircles the disk section. The detonating cord is received in the slot of the post.

Abstract: A perforating gun that has a detonator section in which a window is formed is assembled by: disposing a detonating cord in an inner bore of the perforating gun; fixing a clip to a detonator; gripping the clip with an installation tool; inserting the clip laterally through the window of the detonator section using the installation tool; and attaching the clip to the detonator cord by pressing the clip against the detonator cord using the installation tool. The clip has a planar base, an opening formed in the base for receiving the detonator, and a pair of prongs extending from the base, wherein each prong of the pair of prongs extends from an edge of the base and has a gripping end.

Abstract: A perforating gun that has a detonator section in which a window is formed is assembled by: disposing a detonating cord in an inner bore of the perforating gun; fixing a clip to a detonator; gripping the clip with an installation tool; inserting the clip laterally through the window of the detonator section using the installation tool; and attaching the clip to the detonator cord by pressing the clip against the detonator cord using the installation tool. The clip has a planar base, an opening formed in the base for receiving the detonator, and a pair of prongs extending from the base, wherein each prong of the pair of prongs extends from an edge of the base and has a gripping end.

Abstract: A perforating tool includes an encapsulated shaped charge that has a bulkhead with a reduced wall thickness section, a plate having a shallow recess, and a detonating cord having an energetic core. The energetic core forms the plate into an explosively formed perforator when detonated. The plate is positioned to direct the explosively formed perforator into the reduced wall thickness section.

Abstract: An apparatus for use with a perforating device includes a section having a window and a detonating cord disposed in a bore of the section. The apparatus may include a detonator configured to generate a high order detonation; and a clip connecting the detonator to the detonating cord. The clip may be formed as a ribbon having a base and a prong extending from opposing sides of the base. The base has an opening for receiving the detonator. The prongs have biased ends to secure the detonating cord against a face of the detonator.

Abstract: An initiation block for connecting a detonator with a detonating cord may have a body having a first face opposing a second face; a first chamber extending between the opposing faces and through the body, the first chamber being formed by a first bore serially arranged with a second bore, the second bore being shaped to seat the detonator adjacent to the second face; a second chamber extending between the opposing faces and through the body, the second chamber being parallel with the first chamber, the second chamber shaped complementary to the detonating cord; a passage providing communication between the first chamber and the second chamber; a booster positioned in the first bore and proximate to the first face, the booster positioned along the passage; and an opening formed in the body, the opening providing communication between an exterior of the body and a portion of the chamber between the booster and the detonator.

Abstract: An apparatus for use with a perforating device includes a section having a window and a detonating cord disposed in a bore of the section. The apparatus may include a detonator configured to generate a high order detonation; and a clip connecting the detonator to the detonating cord. The clip may be formed as a ribbon having a base and a prong extending from opposing sides of the base. The base has an opening for receiving the detonator. The prongs have biased ends to secure the detonating cord against a face of the detonator.

Abstract: An apparatus for activating a wellbore tool may include a first sub having a an igniter disposed in the first chamber, the igniter generating a flame output when ignited and a power charge disposed in the second chamber, the power charge generating a high pressure gas when ignited by the flame output. The well tool also includes a gas transfer sub connectable with the first sub, the gas transfer sub having: a first end receiving a portion of the power charge, a longitudinal bore, and a plurality of flow passages radiating from the longitudinal bore, the plurality of flow passages providing fluid communication between the longitudinal bore and the second chamber of the first sub; and a second sub connectable with the gas transfer sub.

Abstract: A liner for an explosive shaped charge is formed from a mixture of powdered metals into three or more conical sections wherein the axial height of the first two sections is 30% to 70% of the total liner height. The first conical section may be formed to an included angle of about 20° to about 60°. The second conical section is formed to a greater included angle of about 30° to about 70°. The third conical section is formed to a density less than that of the first and second section and to an included angle that is preferably greater than the first section and equal to or less than the second section.

Abstract: A liner for an explosive shaped charge is formed from a mixture of powdered metals into three or more conical sections wherein the axial height of the first two sections is 30% to 70% of the total liner height. The first conical section may be formed to an included angle of about 20° to about 60°. The second conical section is formed to a greater included angle of about 30° to about 70°. The third conical section is formed to a density less than that of the first and second section and to an included angle that is preferably greater than the first section and equal to or less than the second section.