Abstract: An electric submersible pump (ESP) assembly. The ESP assembly comprises an electric motor, a centrifugal pump mechanically coupled to the electric motor, and a gas handling inverted shroud assembly.

Abstract: A coupler for a drill rod includes a body defining an inner bore extending along a longitudinal axis, at least a portion of the inner bore defining a non-circular profile having a plurality of flats including a first pair of adjacent flats defining a vertex therebetween. A cross aperture of the body has a central axis that is perpendicular to and offset from the longitudinal axis. A radially-innermost portion of the cross aperture extends perpendicular to a reference line extending from the longitudinal axis to the vertex.

Abstract: A device for centering a sensor assembly in a bore comprises a plurality of arm assemblies connected between first and second support members. Each arm assembly comprises a first arm pivotally connected to the first support member by a first pivot and a second arm pivotally connected to the second support member by a second pivot joint. A beam is connected between the first and second arms, the first arm pivotally connected to the beam by a third pivot joint and the second arm pivotally connected to the beam by a fourth pivot joint. A wheel is rotationally mounted to the beam on a rotational axis located axially between the third and fourth pivot joints to contact a wall of the bore in use. A third arm is pivotally connected to the first support member by a fifth pivot joint having a fifth pivot axis axially spaced from the first pivot axis, and is pivotally connected to the beam by a sixth pivot joint having a sixth pivot axis.

Abstract: A downhole expandable liner hanger positioned in a subterranean wellbore. The liner hanger may comprise a liner and an expansion element. The expansion element may comprise one or more seal elements bonded to the expansion element in an open-ended containment system, wherein each of the one or more seal elements is a nanoreinforced rubber element comprising a polymer host and a plurality of nanostructures.

Abstract: A flow monitoring system comprising a first temperature sensor located at a reservoir input for measuring input temperature of a fluid in an enhance oil recovery system, a second temperature sensor located at a reservoir output for measuring temperature of output fluid and a processor in communication with the first temperature sensor and the second temperature sensor wherein the first temperature sensor and the second temperature sensor are operable to measure temperature data and communicate the measured data to the processor. The flow monitoring system further comprises a first flow monitor sensor located at the reservoir input for measuring flow of input fluid and the second flow monitoring sensor located at the reservoir output for measuring output fluid flow wherein the first and second flow monitoring sensors are operable to communicate measured flow data to the processor.

Abstract: A vectored annular cleaning system (VACS) includes a tool body having a first end, a second end, an outer surface and an inner surface defining an internal bore. A valve system is arranged in the internal bore. The valve system includes a valve and an actuator member including a central passage. The actuator member extends from the valve toward the second end. A valve actuator is shiftably connected to the tool body and mechanically connected to the actuator member. The valve actuator includes a plurality of drag blocks and one or more spring members. The one or more spring members radially outwardly bias the plurality of drag blocks.

Abstract: A dissolvable pressure barrier comprises a body having metallic dissolvable components, a power source, and a connector that is shiftable from a first position to a second position when a pressure greater than a predetermined load is applied to the pressure barrier. In the first position, the connector is electrically insulated from the power source. In the second position, the connector is in electrical communication with the power source, the metallic dissolvable components, and the casing of the wellbore, thereby forming an electric circuit wherein a voltage is provided by the power source and the dissolution of the pressure barrier is accelerated by an anodic process. The metallic dissolvable components may be coated with a low activity metal to assist with the dissolution process.

Abstract: A plug for delivering to a bottom end of a tubular in a wellbore and method of use. The plug includes a body having a first end and a second end opposite the first end, the first end engageable to a landing member in an interior of the tubular uphole of the bottom end. A bore extends through the body from the first end to the second end. A rupture disk that breaks above a rupture threshold pressure is on an outer diameter of the body. The plug is run into the tubular and engaged to the landing member. A hydraulic pressure is applied in the tubular to rupture the rupture disk to form an inlet to the plug. Fluid is delivered to the bottom end of the tubular via the inlet of the plug.

Abstract: The device is designed for borehole reaming during casing—casing reamer shoes mounted in the conductor guide hole of a string or liner. The casing reamer shoe has a sub connected via a sleeve with a spiral mandrel having at least one screw groove, and a mandrel with a drill shoe located at one end thereof, and a pipe with at least one pin at the other end. The mandrel is mounted movably on the spiral mandrel inside a case being rigidly connected to the sub. The pin is arranged in the groove. The cross section of the screw groove has a shape of a trapezoid expanding in the direction of the longitudinal axis of the shoe. The pin has a stepped cylindrical shape with a conical transition. The device increases reliability and lifetime of the casing reamer shoe due to the shape of the grooves and pins.

Abstract: The invention relates to a device for locating a drill head of a ground drilling device, comprising a wireless probe, the probe being arranged on or in a flying object.

Abstract: A method of performing an annular cementing operation after setting an integrated hanger and seal includes introducing a tubular including a flow passage having an inlet and an outlet into a wellbore, positioning and setting the integrated hanger and seal in the tubular, flowing cement between the tubular and the integrated hanger and seal into the inlet of the flow passage, passing the cement through the flow passage to the outlet, flowing the cement from the outlet, and closing the outlet.

Abstract: A method of manufacturing an assembly for use as an isolation barrier to be run in and secured within a well. The assembly has a first tubular section providing a mandrel portion over which a sleeve body is located. The sleeve body is initially welded to a second tubular section to provide a part assembly which can be welded, inspected and machined without affecting the mandrel portion. The second tubular section is then coupled to the first tubular section and the sleeve body welded to the first tubular section to provide a chamber between the sections and the sleeve body. In use, fluid can enter the chamber through a port in the mandrel portion and morph the sleeve against a larger diameter surface in the well. In an embodiment the second tubular section includes a support for the sleeve body during initial welding which is then machined away.

Abstract: A caliper-behind casing apparatus and method determines a location and size of a washout (i.e., a void) behind casing in a borehole for a salt cavern used for storing hydrocarbons. The cavern and tubing in the casing are filled with brine. Gaseous nitrogen is used to fill an annulus between the tubing and the casing above and below a casing shoe to obtain image responses from operating a pulsed neutron logging tool in the tubing along the borehole. Analysis of burst ratios of near and far detectors on the pulsed neutron logging tool from these passes is used to detect and estimate a void or washout in the formation behind the casing.

Abstract: An integrated detonation assembly of a perforating unit includes a detonator assembly and a charge assembly. The detonator assembly is positioned in the outer housing and comprises a bulkhead connected to the outer housing; a charge connector connected to the bulkhead, the charge connection having a connection end; a detonator carried by the charge connector; and a trigger coupled to the detonator and to a remote actuator. The charge assembly is insertable into the outer housing, and comprises a charge tube to support shaped charges therein; a charge feedthru; and a receiver. The receiver is at an opposite end of the charge tube, and has a receptacle shaped to matingly receive the connection end of the charge connector and to engage the trigger whereby, upon insertion of the charge assembly into the outer housing, the receiver is oriented and communicatively secured to the detonator assembly.

Abstract: An apparatus and method according to which a perforating gun includes a volume fill body. The volume fill body is positioned in the space between a charge tube and a carrier tube. The fill body occupies at least part, and sometimes all, of the free volume space between the charge tube and carrier tube thereby reducing the free volume space. In certain downhole applications, large free volume space can lead to significant reductions in wellbore pressure, causing dynamic underbalance, which is undesirable. The presence of the volume fill body prevents, or at least reduces, dynamic underbalance and its effects. Also, the volume fill body aligns the charge tube with the carrier tube, further assisting perforation.

Abstract: A method of identifying and diagnosing open gas lift valves in a gas lift production well, the gas lift production well including a production tubular having a plurality of mechanical gas lift valves, and a casing surrounding a portion of the tubular to form an annulus. The method includes reducing injection pressure below the minimum design opening pressure of each of the plurality of mechanical gas lift valves to close each of the plurality of mechanical gas lift valves; incrementally increasing injection pressure to operating or designed injection pressure to sequentially open one or more of the plurality of mechanical gas lift valves; measuring pressure, amplitude, frequency and/or wave patterns produced by the sequential opening of the one or more mechanical gas lift valves; and determining the location of the one or more mechanical gas lift valve locations.

Abstract: A wellbore isolation device, comprising: a mandrel 24 having a cylindrical body, a sealing element 38 disposed about the mandrel 24 and radially expandable from a first run-in diameter to sealing engagement with the an inner surface 50 of the wellbore 6; a metal backup ring 60 disposed on the mandrel 24 contacting one side of the sealing element system 38 with an initial height H and radially expandable and axially deformable to abut the inner surface 50 of the wellbore 6; wherein the metal backup ring 60 is a concave cross-section about the mandrel 24 with an uphole leg and a downhole leg; and wherein an applied compressive force expands the sealing element system 38 into sealing engagement with the wellbore 6 and the metal backup ring 60 radially expands while axially deforming to abut the inner surface 50 of the wellbore 6 with no contact pressure.

Abstract: Systems and a method for efficient downhole separation of gas and liquids. An exemplary system provides a downhole gas separator for an artificial lift system. The downhole gas separator includes a separation section. The separation section includes a number of openings over an extended length, and wherein a size of each of the openings, a number openings, or both, is increased as a distance from a production tubing is increased.

Abstract: An apparatus and method are used in conjunction with a system for performing horizontal directional drilling, the system including a drill string extending from a drill rig to a boring tool such that the boring tool is steerable based on a roll orientation. The system also includes an arrangement for generating steering commands for guiding the boring tool to a target position. Responsive at least in part to the steering commands, a display is configured to selectively indicate each of a rotate command, a push command and a spin command. A steering indicator is described which indicates a current roll orientation of the boring tool. A 3-D grid can be animated and centered on either a steering or target indicator. Rounding of a steering command ratio can limit the display of target roll orientations to only those that a given boring tool transmitter is capable of sensing and indicating.

Abstract: The present invention comprises a drill cuttings composite core apparatus, system, and method that may utilize sieve shaker equipped with a solvent wash system to separate, clean, and size cuttings; a centrifugal mill equipped with a 12 tooth rotor and 1.0 mm ring sieve; a compactor mold that may be 1.5 inches in diameter and up to 6 inches long; dual piston compactor with independent air control valves; and a spacer on top of a bottom piston that may allow compacted core to be pushed up through top of mold for easy removal with no special tools or handling and so forth.