A perforating tool including a body, a first lid and a second lid, the first lid attachable to one end of the body and the second lid attachable to an opposite end of the body, to define an interior cavity of the body. The interior cavity has an air-tight seal with an exterior environment surrounding the body. In some aspects, one or more plates are disposable within the interior cavity such that the one or more plates are situated apart from an explosive charge when the explosive charge is disposed in the interior cavity, the one or more plates occupying part of a total interior volume of the interior cavity and thereby reducing a free interior volume inside the body. In some aspects, two or more plates are disposable within the interior cavity such that the two or more plates are situated apart from an explosive charge when the explosive charge is disposed in the interior cavity, the two or more plates occupying part of a total interior volume of the interior cavity and thereby reducing a free interior volume inside the body.

A socket driver for a perforating gun assembly. The socket driver includes a first end, and a second end opposite the first end. The second end defines an inner diameter that has a length to extend over a threaded end of the tandem sub. The socket driver is configured to mate with a shoulder along the tandem sub of the perforating gun assembly. Specifically, the socket driver includes a radial notched profile. The notched profile is configured to mate with a radial pattern of slots along the shoulder of the tandem sub. In one aspect, the socket driver is between 3 and 8 inches in length. In one aspect, the first end of the socket driver comprises an opening configured to receive a torque tool. A method of connecting ends of perforating guns using the socket driver is also provided herein.

A method and apparatus for electrically detecting the presence of an initiator in a downhole tool.

A method and apparatus for electrically detecting the presence of an initiator in a downhole tool.

The invention allows improved planning and implementation of blasting operations. A control unit for interfacing with a blasting plan logger is connected via a first interface to at least a headset comprising a wearable display. The control unit comprises at least one processor, and at least one memory comprising computer program code. The at least one memory and the computer program code are configured to, with the at least one processor, cause the control unit to at least operate the wearable display via the first interface to display information from a blasting plan logger to a user on the wearable display.

The invention allows improved planning and implementation of blasting operations. A control unit for interfacing with a blasting plan logger is connected via a first interface to at least a headset comprising a wearable display. The control unit comprises at least one processor, and at least one memory comprising computer program code. The at least one memory and the computer program code are configured to, with the at least one processor, cause the control unit to at least operate the wearable display via the first interface to display information from a blasting plan logger to a user on the wearable display.

A wireless detonator assembly which includes a detonator, a receiver, a printed circuit board with a stored key which is hardwired onto the board during manufacture of the detonator assembly and control logic which allows the detonator to be fired only if the control logic extracts from a signal, received by the receiver, a reference key which is identical to the stored key.

A wireless detonator assembly which includes a detonator, a receiver, a printed circuit board with a stored key which is hardwired onto the board during manufacture of the detonator assembly and control logic which allows the detonator to be fired only if the control logic extracts from a signal, received by the receiver, a reference key which is identical to the stored key.

A wireless electronic detonator includes a primary source of energy and at least one functional module. A power switch is disposed between the primary source of energy and the functional module to connect or disconnect the functional module and the primary source of energy. A controller controls the power switch and includes an optical receiver to detect and demodulate a light signal emitted by a control console, The controller generates a control signal according to the demodulated light signal to at least control the power switch. A wireless detonation system includes the wireless electronic detonator and the control console configured to emit a light signal, and method for activating the wireless electronic detonator.

A wireless electronic detonator includes a primary source of energy and at least one functional module. A power switch is disposed between the primary source of energy and the functional module to connect or disconnect the functional module and the primary source of energy. A controller controls the power switch and includes an optical receiver to detect and demodulate a light signal emitted by a control console, The controller generates a control signal according to the demodulated light signal to at least control the power switch. A wireless detonation system includes the wireless electronic detonator and the control console configured to emit a light signal, and method for activating the wireless electronic detonator.