Abstract: Disclosed are a wire-guided automatic pay-off device and method. The wire-guided automatic pay-off device is installed on a horizontal directional drilling rig and comprises a conductive ring assembly, a brush assembly, a winding device, a guide device and a guide wire. The conductive ring assembly fixed to a main shaft of a carriage assembly rotates together with the main shaft, the brush assembly fixed to a body of the carriage assembly does not rotate with the main shaft, and a conductive end of the brush assembly is in contact with the conductive ring assembly. The guide wire wound on the winding device has one end connected to the conductive ring assembly and the other end passing through the guide device, penetrating into a central hole in a drill pipe from a rear end of the drill pipe.

Abstract: A plunger assembly includes a plunger body and a collar detecting assembly. The plunger body is disposed within a wellbore string that has multiple collars. The collar detecting assembly includes a housing attached to the plunger body, and spring-loaded pins attached to and extending through a side wall of the housing to bear against an interior wall of the wellbore string. Each of the spring-loaded pins momentarily extends at an annular gap formed between two pipes at each collar as the plunger body moves along the pipe. The collar detecting assembly also includes a transducer that converts movement of the spring-loaded pins into electronic signals including timestamps. A transmitter of the plunger transmits the timestamps to a system including one or more computers. The system determines, as a function of the timestamps, a speed of the plunger assembly along the wellbore string.

Abstract: The disclosure provides for systems and methods for controlling fluid flow into a power generation section of a tool string. In one aspect, multiple flow kits are fluidly coupled with a turbine, and flow of fluid into the turbine is regulated by selectively opening valves coupled with the flow kits. In another aspect, a valve is fluidly coupled with the turbine, and flow of fluid through the valve and into the turbine is regulated by opening, partially opening, closing, or partially closing the valve in response to measured operational parameter data.

Abstract: A continuous choke for a flow control valve is provided. The continuous choke can be included in a fully electric, full bore flow control valve. The continuous choke comprises a housing comprising at least one opening, a sleeve comprising at least one opening aligned with the at least one opening of the housing, a piston slidable relative to the sleeve to progressively cover or uncover the at least one opening of the sleeve to progressively decrease or increase, respectively, flow through the continuous choke, wherein the piston is configured to slide distally relative to the sleeve to move toward a closed position, the piston comprising a plurality of channels configured to direct fluid flow.

Abstract: A pressure-testing system for a tubular product such as production tubing. The pressure testing system includes a controller; a fluid reservoir containing a test fluid; a pump in fluid communication with the fluid reservoir; a fluid hose having a first end configured to receive the test fluid from the reservoir, and a second end configured to be fluidically connected to a hydrotest tool for the tubular product; and a transducer. The transducer sends signals to the controller indicative of pressure within the fluid hose. The controller is programmed to automatically (i) store a pressure threshold value (T) and (ii) store a pressure test value (PT) such that when pressure in the fluid hose reaches (T) or when pressure in the fluid hose reaches (PT), the controller sends a signal to divert a direction of fluid being pumped so that fluid is no longer pumped into the tubular product.

Abstract: A downhole assembly is disclosed that includes a basket having a base, a connection end opposite the base, and a side extending between the base and the connection end. A heater extends centrally through the basket from the base, where the heater has an electrical connection at an end of the heater opposite the base. A volume of eutectic pellets is provided in the basket, and the downhole assembly is used to plug a downhole location by using the heater to melt the eutectic pellets at the downhole location.

Abstract: A reamer for use in enlarging a borehole in a drilling operation, the reamer comprising: an elongate body defining a rotational axis about which the reamer is rotated in the drilling operation; and a plurality of reamer blocks configured to extend radially outwards from the elongate body relative to the rotational axis, wherein: each reamer block comprises at least a first row of cutters configured to engage a formation in which the borehole is being drilled with a given back rake in the drilling operation, a given portion of each first row extending longitudinally along its reamer block, a longitudinal direction being substantially parallel to the rotational axis; each back rake of said cutters is either a high back rake or a low back rake; and for at least one first row of cutters, the respective back rakes of the cutters alternate along the given portion of the row between one or more high back rakes and one or more low back rakes.

Abstract: A piston and cylinder assembly of a downhole tool including a rotary steerable tool. The piston has an outer wall in direct sliding contact with a wall of the cylinder. The cylinder has a retainer for the piston, the retainer has a retaining part and the piston has a retained part, such that the retaining part and the retained part cooperate to retain the piston in the cylinder. The invention separates the function of retaining the piston from sealing the piston to cylinder interface. The invention also relates to a method of assembling the piston and cylinder including rotating the piston relative to the cylinder so that at least a portion of the retained part becomes aligned with at least a portion of the retaining part, and locking the piston against subsequent rotation relative to the cylinder.

Abstract: A system and method for hydraulic isolation of a downhole powered system. The system and method include a sliding sleeve, venting assemblies with venting ports, and check valves associated with a vent body, and an isolation sleeve, isolation valve, and integral packer for controlling fluid flow through the motor and pump assembly of the powered system. Also disclosed is a wet connect mandrel modified to receive the isolation sleeve, the isolation sleeve preferably capable of permitting the passage of tools therethrough and capable of preventing fluid through the inlet of the mandrel. The mandrel may also be outfitted with a built-in sliding sleeve. The sleeves, valves and packer can be actuated mechanically, hydraulically or electrically. Electrical actuation can be facilitated using the power from an adjacent wet connect mandrel.

Abstract: An equivalent circulating density (ECD) reduction tool can include a positive displacement fluid motor, and a fluid pump configured to be driven by the fluid motor. The fluid pump can include a fluid inlet and a fluid outlet disposed on respective opposite sides of an external flow restriction. A method of controlling equivalent circulating density (ECD) in a well can include connecting an ECD reduction tool in a tubular string, deploying the tubular string with the ECD reduction tool into the well, thereby forming an annulus between the tubular string and a well surface surrounding the tubular string, and flowing a fluid into the well through the tubular string, the fluid returning from the well via the annulus. The flowing step can include operating a positive displacement fluid motor of the ECD reduction tool, the fluid motor thereby rotating an impeller shaft of a fluid pump.

Abstract: This disclosure relates to tool string embodiments, system embodiments, and method embodiments for testing and/or sampling a formation in an open hole hydrocarbon well, for example in order to determine whether the well merits production. Disclosed embodiments can be concerned with minimizing hydrocarbon emissions during testing, for example to provide a greener testing approach. Thus, improvements to reservoir testing a hydrocarbon well are disclosed.

Abstract: A system can be provided for supplying power to downhole equipment during a wellbore operation performed with respect to a wellbore. The system can include a tubing positioned downhole in the wellbore. The system can also include a tubing encapsulated conductor (TEC) positioned downhole in the wellbore. The TEC can be in contact with the tubing at one or more locations along a length of the tubing. The TEC can include an interior wire for transmitting electricity from a power source to at least one piece of electrical equipment during the wellbore operation. The TEC can also include a metal sheath positioned around the interior wire and a conductive encapsulation layer. The conductive encapsulation layer can be positioned on an outer side of the metal sheath and can be positioned to facilitate one or more electrical couplings between the metal sheath and the conductive item at the one or more locations.

Abstract: A rotary steerable system is disclosed. The rotary steerable system includes a tool collar having cavities and through holes extending there through to interconnect the cavities. The rotary steerable system also includes pad pushers each positionable within the plurality of cavities to be coupled to the tool collar, each pad pusher coupled to a respective pad retention housing on the uphole end and the downhole end of the tool collar. A secondary retention mechanism is slidably attached to the tool collar and coupled with a respective pad retention housing.

Abstract: A system and method of enhancing operation of hydraulic fracturing equipment at a hydraulic fracturing wellsite may include determining if a hydraulic fracturing stage profiles are available for use for hydraulic fracturing equipment at a wellsite. The method may include prompting an acceptance or amendment of one of the hydraulic fracturing stage profiles for a hydraulic fracturing pumping stage. The method may include, in response to an amendment of one of the hydraulic fracturing stage profiles, prompting acceptance of the amended hydraulic fracturing stage profile as the current hydraulic fracturing stage profile for use in association with the controller. The method may include, when a hydraulic fracturing stage profile is not available, prompting configuration of hydraulic fracturing pumping stage parameters for the current hydraulic fracturing stage profile.

Abstract: An electronically controlled full rotary clutch controller includes a drive assembly, an executive assembly and an auxiliary assembly. The device can have two working states: directional drilling and compound drilling. When compound drilling, drilling parameter information is obtained through the main control board, and the data is fed back to a ground processing system, which transmits a control signal to the main control board. The main control board controls a rotating motor, and pushes a screw sleeve and a push block shaft on a ball screw. The push block shaft pushes a push block radially, and a mandrel shell transmits torque to a roller shell through the push block. The roller shell and the mandrel shell rotate together to realize compound drilling. When directional drilling, the main control board reverses the rotary motor, the push block shaft pulls the push block radially, and the roller shell does not rotate.

Abstract: A sensor transportation apparatus to convey an elongate sensor assembly through a wellbore, the sensor transportation apparatus comprises a pair of axles and a pair of wheels corresponding with the pair of axles with each wheel mounted on a respective said axle to rotate about an axis of rotation perpendicular to a longitudinal axis of the elongate sensor assembly. A protection structure extends longitudinally around each wheel to prevent a side of the wheel from contacting a wall of the wellbore. Each wheel extends above and below the protection structure to contact a side of the wellbore.

Abstract: An interconnectable downhole instrument package has a downhole instrument disposed in a pressure housing; a male connector assembly connecting to a first end of the downhole instrument; and a female connector assembly connecting to a second end of the downhole instrument. The male connector assembly has a first housing and a male rotatable connector that are connected together, while the female connector assembly has a second housing and a female rotatable connector. The second housing is adapted to receive the female rotatable connector.

Abstract: A cutting device includes a round of shots having a radial shape. Each shot in the round of shots are operable to perforate a wellbore conduit to sever one or more control lines. Each shot in the round of shots overlaps an adjacent shot in the round of shots by an overlap width that is equal to or greater than a width of the one or more control lines such that the round of shots maintains structural integrity of the wellbore conduit.

Abstract: A self-contained single-trailer sand-conveyor and mixer system capable of being erected into an operational configuration and reconfigured into a compact highway-travel configuration, without the need for safety harnesses. The system, mounted on a single trailer, includes an input feed hopper for side-loading sand, first and second conveyors for material transport, a sand-liquid blender for producing frac-sand slurry, a vibratory sifter for debris removal, and a discharge funnel with a boot for precise slurry output. The system also integrates automated elevation actuators, and height-maintenance locks. Some embodiments include hydraulic mechanisms to ensure operational stability and worker safety. With pre-assembled components, OSHA-compliant safety features, and a generator-powered control system, this invention offers quick deployment, improved safety, and efficient frac-sand handling.

Abstract: An assembly for use in subsurface drilling includes a downhole probe supported by a centralizer. The centralizer comprises a tubular member that extends around the downhole probe. A wall of the centralizer is fluted to provide inward contact points that support the downhole probe and outward contact points that bear against a bore wall of a section of drill string. The downhole probe may be supported for substantially its entire length.