Abstract: A reaction is instigated in an energetic material with an initiator having a chassis assembly and a cartridge. The chassis assembly and cartridge are transportable separate from one another and assembled on site. The chassis assembly includes a tubular penetrator with a beveled sharpened tip and a bridge wire mounted within the penetrator. The cartridge includes a sleeve and an amount of explosive inside the sleeve. When the initiator is assembled the penetrator inserts inside the sleeve and puts the bridge wire into direct contact with the explosive. The bridge wire is in electrical communication with a current source, and when selectively energized creates an explosion in the explosive to launch the reaction in the energetic material.

Abstract: A housing system includes a housing body having an internal cavity and an opening. A cap is removably fitted to the opening using a set of sliders. Each slider in the set of sliders has a fixed rail secured to an internal surface of the housing body and a dynamic rail connected to an inner surface of the cap. The cap slides between open and closed configurations on the dynamic rail. One or more components are also connected to the inner surface of the cap, such that when the cap is opened, the one or more components are accessible.

Abstract: A casing system includes a landing ring and a mandrel hanger. The landing ring defines an opening extending between a first end portion and a second end portion. The first end portion is configured to couple to a conductor pipe. The landing ring includes a landing ring shoulder extending radially inward from an inner surface of the opening. The mandrel hanger has an outer surface configured to engage a load ring and an engagement ring. The load ring also abuts the engagement ring and engages the landing ring shoulder.

Abstract: A lubricator and plunger catcher used in conjunction with an oil or gas well includes a manifold positioned between the wellhead and the plunger catcher. The manifold includes a plunger passageway that extends from the bottom of the manifold to the top of the manifold, with the plunger catcher being mounted to the top of the manifold. The manifold also includes a production passageway through which oil or gas leaving the wellhead is routed. A choke mechanism for at least partially blocking the production passageway is provided on the manifold to selectively vary the volume of the oil or gas leaving the wellhead that is routed through the plunger catcher. This, in turn, can selectively vary a force imparted to a plunger by the oil or gas leaving the wellhead to ensure the plunger is fully seated in the catcher when it arrives at the wellhead.

Abstract: A selection of a hydrocarbon well of a hydrocarbon production system is received at a safety logic solver (SLS) for proof testing. Test mode pressure sensors attached to a common header of the hydrocarbon production system are activated to monitor a live process condition status of the common header from all wells of the hydrocarbon production system. A simulated overpressure condition is induced in the operation pressure sensors. An indication of overpressure is received at the SLS from at least two operation pressure sensors. Final elements associated with the hydrocarbon well are signaled to close while leaving other wells in the hydrocarbon production system in operation. The operation pressure sensors are restored to a normal pressure condition, and the final elements associated with the selected hydrocarbon well are signaled to re-open the hydrocarbon well.

Abstract: A method for operating an electric submersible pumping system includes the steps of operating the electric submersible pumping system until it reaches a steady state operating condition, obtaining a first internal motor temperature measurement, obtaining a first external motor temperature measurement, and determining a first temperature differential based on the difference between the first internal motor temperature measurement and the first external motor temperature measurement. The method continues with the steps of obtaining a second internal motor temperature measurement, obtaining a second external motor temperature measurement, and determining a second temperature differential based on the difference between the second internal motor temperature measurement and the second external motor temperature measurement.

Abstract: A riser system in the form of a pumped riser, i.e. a riser having an outlet from the riser at a depth below the surface of a body of water, where the outlet is coupled to a return pump to return fluid from the riser to the surface, and various operational methods to facilitate greater versatility when performing hydrocarbon drilling related operations. A sealing element to seal an annulus of the riser, and a by-pass around the sealing element. Various methods make it possible to switch between open mode and closed mode, and vice versa, monitoring leakage across the sealing element, as well as performing other operations exploiting the advantages of the two different modes.

Abstract: Methods for treating a producing wellbore of a subterranean reservoir include obtaining a side stream flow of a produced fluid from a production tube of the wellbore at a location above the surface of the earth; providing an eluting contact of the side stream flow of produced fluid with a treatment material to form a side stream flow of treated produced fluid; and directing the side stream flow of treated produced fluid into the wellbore at a point below the surface of the earth. Apparatuses suitable for carrying out the methods include an elution device fluidly connected to a side stream of produced fluid flowing above the surface of the earth and situated to direct the side stream toward the elution device to provide an eluting contact of the produced fluid with a treatment material disposed in the elution device, then direct the treated produced fluid into the wellbore.

Abstract: A riser system in the form of a pumped riser, i.e. a riser having an outlet from the riser at a depth below the surface of a body of water, where the outlet is coupled to a return pump to return fluid from the riser to the surface, and various operational methods to facilitate greater versatility when performing hydrocarbon drilling related operations. A sealing element to seal an annulus of the riser, and a by-pass around the sealing element. Various methods make it possible to switch between open mode and closed mode, and vice versa, monitoring leakage across the sealing element, as well as performing other operations exploiting the advantages of the two different modes.

Abstract: A seal arrangement includes a seal assembly and a seal subassembly in operable contact with the seal assembly. The seal subassembly is configured to impart energy to the seal assembly to promote sealing of the seal assembly with a mating surface. A non-sealing feature of the seal subassembly depends from the seal subassembly and is interactive with a load shoulder of a structure adjacent the seal subassembly. The seal arrangement redirects a mechanical load path through the seal subassembly to the non-sealing feature, during use. A method of protecting a seal subassembly from reverse loading is by redirecting a load path through a seal subassembly to a non-sealing feature, while also permitting pressure energizing of the seal assembly by the seal subassembly in a sealing direction. A downhole system includes a borehole in a formation, a string in the borehole, and a seal.

Abstract: A severing apparatus is used for severing a conduit. The apparatus includes a main body section having an upper portion, a lower portion, and an intermediate portion. A combustible charge is located in the intermediate portion, and an ignition mechanism is coupled to the upper portion for igniting the combustible charge. A nozzle head is located in the lower portion and includes an internal cavity and a nozzle portion having apertures at spaced apart positions for providing passages from the internal cavity to outside of the nozzle head. The ignition mechanism is configured to ignite the combustible charge to create a flame and combustion products and pressure in the internal cavity for moving the nozzle head relative to the lower portion so that the nozzle portion protrudes out of the lower portion for passage of the flame and hot combustion products out of the apertures to sever the conduit.

Abstract: Systems and methods for performing an intervention operation in a wellbore using a friction reducer fluid include a coiled tubing insertable into the wellbore, a pump operable to pump the friction reducer fluid through the coiled tubing and into the wellbore, and sensors operable to detect wellbore conditions. A controller including a processor is operable to automatically predict a wellbore depth at which the coiled tubing will incur a lock-up in the future based on the wellbore conditions and control the pump to pump the friction reducer fluid though the coiled tubing and into the wellbore to prevent the future lock-up.

Abstract: A unitized wellhead assembly includes a lower wellhead housing and an upper wellhead housing interconnected by internal and external threads and pressure sealed via a housing seal that creates a unitized body. The unitized wellhead assembly accepts casing and tubing hanger assemblies containing a plurality of individual retainer segments that engage mating grooves in the unitized body and also retains the casing and tubing hangers in place while containing the wellbore pressure. By eliminating the porting for external actuation devices that pass through the wall section of a wellhead housing, the potential for accidental release of wellbore gasses or fluids to the atmosphere and creation of a potentially hazardous or deadly situation is eliminated. Additionally, the configuration of the segmented retainers reduces high stresses when the retainers are forced outward and eliminates the potential to yield a retainer ring beyond the point of being able to return to its original shape.

Abstract: A cement plug system includes a first plug configured to catch a first obstruction member and actuatable from a locked configuration to an unlocked configuration in response to an axial force transmitted to the first plug by the first obstruction member, and a second plug adjacent to the first plug and configured to catch a second obstruction member, the second plug having a pass-through configuration in which the first obstruction member passes through the second plug, and a catching configuration in which the second plug catches the second obstruction member, the first obstruction member is at least as large as the second obstruction member. The second plug actuates from the pass-through configuration to the catching configuration in response to the first plug shifting from the locked configuration to the unlocked configuration, and the first plug in the unlocked configuration separates from the second plug.

Abstract: The present invention relates to a closed loop subsea cooling system with a subsea cooler. A coolant pump assembly is located in a dedicated, sealed, gas filled, coolant pump housing in coolant fluid connection with the at least one subsea cooler. A heat sink in a dedicated sealed, gas filled, electronics housing is in coolant fluid connection with the subsea cooler. An accumulator is in coolant fluid connection with the subsea cooler, whereby the electric coolant pump is adapted to pump coolant through the at least one subsea cooler, the at least one heat sink and back to the at least one electric coolant pump assembly, forming a closed loop subsea cooling circuit.

Abstract: System for anchoring and orienting a tool at a targeted depth and recording its angular position comprises a casing assembly including coupling joints; a position pilot joint having an anchor sleeve, guide block and spline teeth, the guide block and spline teeth resiliently supported to retract into and extend out of the sleeve. The spline teeth are attached to a synchronizing mechanism for maintaining the spline teeth in a retracted position until each spline tooth is aligned with corresponding coupling joint's recesses. As the guide block travels along the angled ramp of a coupling joint and enters the guiding slot, the position pilot and stabilizer joints correspondingly rotate. When the position pilot joint passes through its corresponding coupling joint, the spline teeth extend out of the anchor sleeve to engage the recesses. An azimuth joint is configured to record the angular orientation of the tool once the tool is anchored.

Abstract: A lubricator vent sub is placed at a lowest point in a greasehead with maximum volume to relieve trapped air, wherein the lubricator vent sub creates a secondary flow path for the trapped air.

Abstract: The invention relates to a subsea equipment (100) and a subsea receptacle (200), a subsea system (1) comprising the subsea equipment (100) and the subsea receptacle (200) as well as a method of mounting the subsea equipment (100) to the subsea receptacle (200).

Abstract: A float tool is used for controlling flow in tubing. The float tool comprises a housing, at least one valve, and at least one inset. The housing is configured to install on the tubing and has a longitudinal bore therethrough. The at least one valve is disposed in the longitudinal bore. The at least one valve is configured to allow the flow in a downbore direction through the longitudinal bore and is configured to prevent flow in an upbore direction through the longitudinal bore. The at least one inset is disposed in the longitudinal bore and is disposed downbore of the at least one valve. The at least one inset defines an orifice therethrough. The orifice has one or more vanes angled relative to the longitudinal bore. The one or more vanes are configured to produce turbulence in the flow in the downbore direction through the longitudinal bore.

Abstract: An oil production system and method. The system includes a system for heating unrecovered oil. The system includes a chemical injection well having at least one subterranean outlet. The system also includes an oil production well with at least one subterranean inlet. The subterranean outlet is lower in elevation than the at least one inlet. The chemical injection well is coupled to an injected reactant source, and wherein said injected reactant source reacts with a second reactant in an exothermic reaction.