Abstract: A system for connecting a perforating gun to at least one other component in a perforating tool string includes a perforating gun that includes a gun housing and a charge carrier received within the gun housing wherein the charge carrier includes a first electrical connector, a tool connected end-to-end with the perforating gun where the tool includes an outer sleeve and a second electrical connector, a solid signal puck arranged with the perforating gun and the tool where the puck forms a pressure resistant barrier between the gun and the tool and wherein the solid signal puck includes a first endface oriented and a second endface and an outer periphery between the endfaces, and wherein the largest outer diameter of the outer periphery is at least 40% of the length between the first endface and the second endface of the puck.

Abstract: A tandem sub for a perforating gun system includes a tubular housing including a longitudinal first end, a longitudinal second end opposite the first end, a central passage defined by an inner surface, an electrical pass-thru assembly including an electrically conductive signal bar having a longitudinal first end defining a first electrical contact of the tandem sub, and a longitudinal second end opposite the first end and defining a second electrical contact of the tandem sub that is longitudinally opposite and electrically connected to the first electrical contact, wherein the signal bar is rigid along the entire longitudinal length thereof extending from the first end to the second end, and wherein the signal bar is coupled to the housing and a central axis of the central passage of the housing intersects the signal bar.

Abstract: An initiator assembly for a perforating gun includes a detonator configured to detonate a shaped charge of the perforating gun when ballistically coupled to the shaped charge, wherein the detonator includes a detonator housing that receives an explosive material and a detonator electrical connector extending from the detonator housing, and a switch assembly configured to detonate the detonator after receiving a firing signal, wherein the switch assembly includes a switch housing and a switch electrical connector received in the switch housing, wherein one of the detonator electrical connector and the switch electrical connector is insertable into the other of the detonator electrical connector and the switch electrical connector to form an electrical connection between the detonator and the switch assembly.

Abstract: A perforating gun includes an outer sleeve included of a generally tubular wall structure having a peripheral surface around the outside, opposite ends thereof and a central passage therethrough extending from one end to the other end and further including a connection at each end to connect to other tools in a tool string wherein the outer sleeve is configured to carry the tensile and compressive forces imposable on the perforating gun as the perforating gun is deployed in the wellbore, and at least one pressure sealed perforating module installed within the central passage of the outer sleeve having a shaped charge sealed therein and wherein the installation of the pressure sealed perforating module within the outer sleeve is configured to substantially eliminate the transfer of tensile or compressive forces imposable on or by the tool string onto the at least one pressure sealed perforating module.

Abstract: A perforating gun system includes an outer housing, a charge carrier assembly slidably receivable in the outer housing, wherein the charge carrier assembly includes a charge carrier having a central axis, a first endplate coupled to a first end of the charge carrier, and a second endplate coupled to a second end of the charge carrier, and an initiator assembly including an electrical switch, wherein the electrical switch has a maximum length extending in a direction parallel the central axis that is less than a maximum width of the electrical switch extending in an orthogonal direction relative to the central axis; wherein the electrical switch is configured to detonate a detonator of the perforating gun system in response to receiving a firing signal.

Abstract: A perforating gun deployable in a wellbore. The perforating gun may include an outer sleeve including a central passage, and a plurality of separate perforating modules receivable in the central passage of the outer sleeve. Each of the plurality of perforating modules of the perforating gun may include a carrier and a charge tube assembly received in the carrier, wherein the charge tube assembly incudes a shaped charge.

Abstract: An initiator assembly for a perforating gun includes a detonator configured to detonate a shaped charge of the perforating gun when ballistically coupled to the shaped charge, wherein the detonator includes a detonator housing that receives an explosive material and a detonator electrical connector extending from the detonator housing, and a switch assembly configured to detonate the detonator after receiving a firing signal, wherein the switch assembly includes a switch housing and a switch electrical connector received in the switch housing, wherein one of the detonator electrical connector and the switch electrical connector is insertable into the other of the detonator electrical connector and the switch electrical connector to form an electrical connection between the detonator and the switch assembly.

Abstract: A perforating gun deployable in a wellbore includes an outer sleeve including a central passage, and a plurality of separate perforating modules receivable in the central passage of the outer sleeve, wherein each of the plurality of perforating modules includes a carrier and a charge tube assembly received in the carrier, wherein the charge tube assembly incudes a shaped charge.

Abstract: A shift device, comprising first and second series of touch sensors and an operating mode element. The first and second series of touch sensors are arranged in first and second patterns, respectively, that each extends in a first direction. The first and second series are aligned to provide a series of touch sensor pairs, for each of which the touch sensors are aligned in a second direction, the second direction substantially perpendicular to the first direction. Each touch sensor pair corresponds to a respective one of a plurality of operating modes. The operating mode element is configured to change from one operating modes to another, and to emit a shift signal, only upon occurrence of a sequence of actions consisting of a shift initiation action and one or more operating mode change action. Also, methods of shifting.

Abstract: An embodiment of the present invention utilizes a frac plug having an extremely short length. The extremely short length minimizes the amount of dissolvable material that must be utilized in order to maintain the physical integrity of the plug without unduly deforming the cone. Relatively uniform loading of the cone is accomplished by circumferentially locking the slip sections in place during setting. A sufficient quantity of sealing material is provided by angling the slip surface to a degree that allows a sufficient quantity of elastomer or other sealing material to be used in conjunction with backup rings to prevent the sealing material from extruding down towards the slip.

Abstract: Threaded pin made of a starting material, wherein the threaded pin comprises a base, a tip portion, which is spaced apart from the base in the direction of a longitudinal axis of the threaded pin, wherein the tip portion comprises a bridge portion, and a first side wall with an outer profile, said first side wall extending from the bridge portion to a first base part, and a second side wall with an outer profile, said second side wall extending from the bridge portion to a second base part, wherein the first side wall is formed from a different part of the starting material to the second side wall and the first base part is formed from a different part of the starting material to the second base part, wherein part of the first part is in engagement with part of the second base part, and/or part of the first base part is connected to part of the second base part, wherein, as an alternative or in addition, part of the first side wall is in engagement with part of the second side wall, and/or, in addition, part

Abstract: Threaded pin made of a starting material, wherein the threaded pin comprises a base, a tip portion, which is spaced apart from the base in the direction of a longitudinal axis of the threaded pin, wherein the tip portion comprises a bridge portion, and a first side wall with an outer profile, said first side wall extending from the bridge portion to a first base part, and a second side wall with an outer profile, said second side wall extending from the bridge portion to a second base part, wherein the first side wall is formed from a different part of the starting material to the second side wall and the first base part is formed from a different part of the starting material to the second base part, wherein part of the first part is in engagement with part of the second base part, and/or part of the first base part is connected to part of the second base part, wherein, as an alternative or in addition, part of the first side wall is in engagement with part of the second side wall, and/or, in addition, part

Abstract: The present invention relates to an inflow control device for controlling the flow of fluid into a tubular deployed in a. wellbore comprising coupling between joints of tubulars. The inflow control device is mounted transversely through the coupling in any inflow can control devices the initial condition fluid flow between the exterior and interior of the tubular is prevented. As sufficient pressure is exerted upon the inflow control device from the interior of the tubular the inflow control device is actuated to allow fluid flow between the interior and exterior the tubular. A nozzle in the inflow control device allows fluid to pass at a preset rate. The present invention furthermore relates to a method of assembling an inflow control device according to the invention and to a completion system comprising an inflow control device according to the invention.

Abstract: The present invention relates to an inflow control device for controlling the flow of fluid into a tubular deployed in a wellbore comprising coupling between joints of tubulars. The inflow control device is mounted transversely through the coupling in any inflow can control devices the initial condition fluid flow between the exterior and interior of the tubular is prevented. As sufficient pressure is exerted upon the inflow control device from the interior of the tubular the inflow control device is actuated to allow fluid flow between the interior and exterior the tubular. A nozzle in the inflow control device allows fluid to pass at a preset rate.

Abstract: The present invention relates to an inflow control device for controlling the flow of fluid into a tubular deployed in a wellbore comprising coupling between joints of tubulars. The inflow control device is mounted transversely through the coupling in any inflow can control devices the initial condition fluid flow between the exterior and interior of the tubular is prevented. As sufficient pressure is exerted upon the inflow control device from the interior of the tubular the inflow control device is actuated to allow fluid flow between the interior and exterior the tubular. A nozzle in the inflow control device allows fluid to pass at a preset rate.

Abstract: A downhole flow device has a sliding and ported sleeves. A seal has a first component on the sliding sleeve and a second component on the ported sleeve. These components engage one another to seal flow through the ports in the ported sleeve. The components move apart to allow fluid flow through the ports. The components are protected from abrasion and flow by virtue of the seal's structure and how it is opened. The sliding sleeve moves hydraulically along an axis of the ported sleeve to reveal successive ports defined along the sleeve's axis. Operation of the device and the seal address both erosion and damage from differential pressure problems. Thus, the seal prevent damage when unloading a differential pressure across it, and abrasive flow does not have the opportunity to impinge on the sealing surfaces to cause erosion.

Abstract: A downhole flow device has a sliding and ported sleeves. A seal has a first component on the sliding sleeve and a second component on the ported sleeve. These components engage one another to seal flow through the ports in the ported sleeve. The components move apart to allow fluid flow through the ports. The components are protected from abrasion and flow by virtue of the seal's structure and how it is opened. The sliding sleeve moves hydraulically along an axis of the ported sleeve to reveal successive ports defined along the sleeve's axis. Operation of the device and the seal address both erosion and damage from differential pressure problems. Thus, the seal prevent damage when unloading a differential pressure across it, and abrasive flow does not have the opportunity to impinge on the sealing surfaces to cause erosion.

Abstract: Isolated medulloblastoma-forming clonogenic cells are provided which are useful to form stable cell lines as well as a non-human animal models of medulloblastoma that mimic human medulloblastoma, thereby providing a means to screen for candidate therapeutic compounds.

Abstract: A hip stem centralizer is provided for positioning a proximal portion of a femoral hip stem component within an intramedullary canal of a femur. The centralizer includes a cavity and a side wall defining a lateral skirt. The cavity is removably engageable with the proximal portion of the hip stem component to position the lateral skirt between the lateral portion of the hip stem component and the lateral portion of the intramedullary canal.