Abstract: An untethered apparatus for measuring properties along a subterranean well includes a housing, and one or more sensors configured to measure data along the subterranean well. The data includes one or more physical, chemical, geological or structural properties in the subterranean well. The untethered apparatus further includes a processor configured to control the one or more sensors measuring the data and to store the measured data, and a transmitter configured to transmit the measured data to a receiver arranged external to the subterranean well. Further, the untethered apparatus includes a controller configured to control the buoyancy or the drag of the untethered apparatus to control a position of the untethered apparatus in the subterranean well. The processor includes instructions defining measurement parameters for the one or more sensors of the untethered apparatus within the subterranean well.

Abstract: A system used downhole in tubing is operable with pressure communicated via at least one control line. The system includes a tool and a stinger. The tool disposed with the tubing has a tool bore for passage of tubing flow. The tool has an operator movable between operable states, and the operator has a tool key disposed in the bore. The stinger removably disposed in the tubing is configured to insert into the tool bore. The stinger has an actuator in communication with the at least one control line. Actuated by the control line, a stinger key disposed on the stinger is movable with the actuator between positions. In this way, the stinger key is configured to engage the tool key and is configured to move the tool's operator at least from the one state to another.

Abstract: A downhole tool and method therefor use a deviated flow path to prevent/mitigate fallback of solids during shutdown of an ESP. The deviated flow path leverages the direction of fallback downhole and the relative inertias of the solid particulates and the fluid to minimize fallback into the ESP. The particulates change flow direction more slowly than fluid, and thus largely avoid the deviated flow path to instead fall through a bypass path during fallback. This obviates the need for mechanical valves that may be subject to excessive mechanical wear or other issues associated with solid particulates.

Abstract: A modular anti-rotation device for preventing rotation with respect to the central axis of a drilling tool in a borehole and for producing a notch in a borehole surface. The anti-rotation device includes an upper fixture portion and a lower fixture portion in axial alignment. The upper fixture portion and the lower fixture portion are connected by yoke assemblies. Each yoke assembly is connected to the fixture portion and fixture portion at one end, and forming an articulated joint of the upper yoke assembly and the lower yoke assembly at a distal end opposite the first end. A roller is connected at each joint, connecting the upper and lower yoke assemblies. The rollers engage vertically with a borehole surface, the rollers travelling axially, as a drill shaft penetrates into the borehole, the rollers simultaneously preventing radial movement of the anti-rotation device and prevent rotation with respect to the central axis of the borehole.

Abstract: An inline shock dampener apparatus is configured to absorb energy from encountered axial shock events and subsequently release this energy in a controlled fashion. The inline shock dampener apparatus can be included, for example, as part of a measurement while drilling (“MWD”) or other downhole drilling assembly, and dampens these shock events by absorbing shock energy into an absorbing medium such as springs or elastomers and hydraulically-suppressing the recoil energy stored during the said shock event. Additionally, the inline shock dampener permits fluid to flow through an internal fluid flow path with little or no change to the internal flow path's volume, pressure, or effective flowrate.

Abstract: A system for forming a seal between wellbore components includes an annular seal having a first leg and a second leg, the first leg positioned proximate a first wellbore component and the second leg positioned proximate a second wellbore component, wherein upon activation of the seal, the first leg engages the first wellbore component and the second leg engages the second wellbore component. The system also includes an energizing ring adapted to activate the seal, the energizing ring extending into an opening of the seal to drive the first leg and the second leg radially outward relative to an axis of the seal. The energizing ring includes bumps positioned to align with respective grooves formed on both the first leg and the second leg, upon activation of the seal, the bumps transmitting an uphole force into components having an axial component and a radial component.

Abstract: A fluid flow control device includes a rotatable component for rotating about an axis in response to fluid flow from an inlet port of the fluid flow control device. A float component is positioned within the rotatable component and connected to the rotatable component by a hinge. The hinge provides for movement of the float component relative to the rotatable component between (i) an open position that enables fluid flow from the inlet port to an outlet port of the rotatable component, and (ii) a closed position that restricts fluid flow through a flow passage from the inlet port to the outlet port.

Abstract: A multistage plunger lift system includes an upper production tubing segment positioned in a wellbore uphole of a lower production tubing segment, with the upper segment having a greater diameter than the lower segment. A lower travelling plunger and an upper traveling plunger are sized and configured to fit and travel within the lower segment and the upper segment, respectively. A plunger lift tool is positioned in the upper segment between the upper plunger and the lower plunger, and includes within its main body a fluid passageway with a one-way valve. A plunger receptacle sleeve at the bottom end of the lift tool receives the lower plunger and includes one or more vents configured to allow fluids to flow around the lower plunger when the lower plunger is received within the plunger receptacle sleeve.

Abstract: A technique facilitates formation of a gravel pack along relatively lengthy wellbores. According to an embodiment, a completion system comprises a screen assembly and an alternate path system disposed along the screen assembly. The alternate path system may include a transport tube and a packing tube placed in fluid communication at a manifold. The manifold is disposed along the screen assembly. In some embodiments, the completion system may comprise multiple screen assemblies with multiple corresponding manifolds. The packing tube is protected against erosion by a liner and a surrounding housing which are positioned to conduct fluid flow from the manifold as fluid flow moves from the transport tube, through the manifold, and into the packing tube during a gravel packing operation.

Abstract: A method and apparatus for using a tandem sub between two perforating guns where an EB fire pressure switch arms a detonator after the detonation of a first perforating gun and then a subsequent electrical signal can then detonate the second perforating gun.

Abstract: A device for generating a flow of crude oil from a plurality of hydrocarbon reservoirs to a surface location, including a set of isolation devices arranged to, at least partially, hydraulically isolate a set of segments of a wellbore traversing each of the plurality of hydrocarbon reservoirs. The device further includes a trap that receives a flow of crude oil from the plurality of hydrocarbon reservoirs and generates a comingled crude oil, and a set of conduits arranged to convey the flow of crude oil from each of the plurality of hydrocarbon reservoirs to the trap, and a blending device that blends the comingled crude oil to produce a blended crude oil. The device further includes a conduit arranged to convey the comingled crude oil from the trap to the blending device, and a conduit arranged to convey the blended crude oil to the surface location.

Abstract: A fluid flow control device can include an inlet port and an outlet port. The fluid flow control device can also include a rotatable component for rotating about an axis in response to fluid flow from the inlet port. A float component positioned within the rotatable component can move between (i) an open position that enables fluid flow from the inlet port to the outlet port, and (ii) a closed position that restricts fluid flow from the inlet port to the outlet port. The float component can move from the open position to the closed position in response to a fluid from the inlet port having one density. The float component can move from the closed position to the open position in response to the fluid from the inlet port having another density.

Abstract: A electrocrushing drill bit may include a bit body; an electrode coupled to a power source and the bit body, the electrode having a distal portion for engaging with a surface of a wellbore; a ground ring coupled to the bit body proximate to the electrode and having a distal portion for engaging with the surface of the wellbore, the electrode and the ground ring positioned in relation to each other such that an electric field produced by a voltage applied between the ground ring and the electrode is enhanced at a portion of the electrode proximate to the distal portion of the electrode and at a portion of the ground ring proximate to the distal portion of the ground ring; and an insulator coupled to the bit body between the electrode and the ground ring.

Abstract: A tumbler ring apparatus, method, and system for deployment in a subterranean well at a setting location. The tumbler ring may have a generally oval shape with a major axis and a minor axis. The major axis defining a major diameter of the ring and the minor axis defining a minor diameter of the ring. The major diameter of the ring being larger than the inner diameter of the subterranean well at the setting location, and the minor diameter of the ring being smaller than the inner diameter of the subterranean well at the setting location. The ring is further configured to substantially deform to the inner circumference of the subterranean well at the setting location when tumbled by reducing the major diameter of the ring to cause the ring to generally take the shape of the inner circumference of the subterranean well.

Abstract: A mechanical stepper and method of incrementally actuating a device. An insert is placed within a housing. The housing has a cavity and a stepper sleeve located within the cavity. The stepper sleeve includes a first stop member having an equilibrium position defined by a first equilibrium diameter and a second stop member having an equilibrium position defined by a second equilibrium diameter less than the first equilibrium diameter. The insert including a first protrusion. The insert moves through the housing, and motion of the insert through the housing is incrementally restricted by changing a diameter of the first stop member and a diameter of the second stop member via the first protrusion.

Abstract: A downhole tool assembly for completing or cleaning a wellbore. The downhole tool assembly may include a perforation gun sub and a laser assembly sub. The perforation gun sub may be used to propagate a shockwave through one or more pre-existing perforations in a formation. The laser assembly sub may be used for treating perforations, e.g. treating the one or more pre-existing perforations. Depending on the parameters of the operation, the treating of the perforations may comprise changing the shape of the perforations and/or making the perforations wider, deeper, or otherwise adjusted.

Abstract: Double barrier gas lift flow control devices that utilize first and second check valve assemblies disposed in series. A check valve assembly configured for disposition within an interior of a gas lift flow control device, the check valve assembly having flow channels disposed radially outward from a valve head of the check valve assembly. A check valve assembly configured to engage a nose end of gas lift flow control device.

Abstract: A flow control apparatus with a guide housing having one or ports, a breakable bond, and a platform with an upper surface having one or more pistons. The platform and guide housing have a first bonded configuration where the pistons are received in the ports, a breaking configuration, an opening configuration where the platform is movable away from the guide housing, and a misaligned configuration where the platform is displaced with respect to the guide housing. The guide housing has a guide bore and the platform has a guide projection extending into the guide bore. The guide bore has a groove and the guide projection has an extension extending in the groove for transitioning between configurations.

Abstract: An adjustable flow control device. In one aspect, the flow control device comprises a base pipe having one or more openings extending from an exterior to an interior of the base pipe; and a movable sleeve positioned along the interior of the base pipe, the movable sleeve having one or more associated openings extending from an exterior to an interior of the movable sleeve, and configured to rotate to a first position that aligns a first of the base pipe openings with a first of the movable sleeve openings.

Abstract: Methods and downhole tools for operation within in a wellbore that extends into a subterranean formation. The operation includes simultaneously causing a change in a first parameter of fluid drawn into the downhole tool from the formation and determining a change in a second parameter of the fluid relative to the change in the first parameter. A third parameter of the fluid is determined based on the first and second parameter changes.