Abstract: Methods and apparatus are presented for mechanically perforating a tubular positioned in a subterranean wellbore. A plurality of mechanical penetrators are moved radially outward, simultaneously or sequentially, in response to an actuating force applied from a downhole power unit or tubing pressure. After perforating the downhole tubular, the penetrators are retracted for re-use at a new location or for retrieval. A slip assembly can secure the tool in position during use.

Abstract: A tool and method employing sand jetting to perforate a wellbore casing at various locations using sandjetting, and to further flush/clean the wellbore in the region of the tool, and to further frac the formation, all without having to remove the tool from the wellbore. An uphole and downhole packer is provided, uphole of which a sand jet port is provided for jetting a fluid stream containing sand. Locking jaw members and a ‘j’ slot subassembly, downhole of both the jet port and frac port are together used to set and unset the tool in the wellbore for the fracking operation. A slidable sleeve is utilized to open and close the jet port, and a piston member is further provided to set the upper packer member. A bypass port, which is selectively openable and closeable, is provided to assist in moving the tool uphole during the perforating and fracking process.

Abstract: An example sliding sleeve assembly includes a body that defines an inner flow passageway and one or more ports. One or more sensors are positioned on the body to detect wellbore projectiles that traverse the inner flow passageway, and a sliding sleeve is arranged within the body and movable between a closed position, where the sliding sleeve occludes the one or more ports, and an open position, where one or more ports are exposed. A flapper valve is arranged within the body and movable between an open configuration, where the flapper valve allows fluid flow through the inner flow passageway, and a closed configuration, where the flapper valve seats against a flapper seat defined on the sliding sleeve and prevents fluid flow through the inner flow passageway. An actuation sleeve is arranged within the body and movable to allow the flapper valve to move to the closed configuration.

Abstract: Sliding sleeve assemblies including a completion body with an inner flow passageway and one or more ports enabling fluid communication between the inner flow passageway and an exterior of the completion body. A sliding sleeve is arranged within the completion body and has a sleeve mating profile defined on an inner surface, the sliding sleeve being movable between a closed position, where the one or more ports are occluded, and an open position, where the one or more ports are exposed. A plurality of wellbore darts are used and each has a body and a common dart profile that is matable with the sleeve mating profile. One or more sensors are positioned on the completion body to detect the plurality of wellbore darts traversing the inner flow passageway. An actuation sleeve is arranged within the completion body and movable to expose the sleeve mating profile.

Abstract: This invention refers to a pumping unit for drilling oil in the field of oil prospecting equipment, comprising an oil well stem (120) which alters the length of said stem (120). The halter adjustment mechanism applied to a pumping unit for oil drilling comprises a fixed body (10) fitted with a peripheral support for fixing the steel cables (11) attached to the head (110) of the pumping unit (100). On the periphery of the fixed body (10) guides (12) are placed, wherein the peripheral support is displaced, a position sensor (121) being provided on the top end of such guide (12). The movement control mechanism of a mobile body within a rigid head of a pumping unit, which is the object of this invention, comprises equipment composed of a fixed portion (31) and a mobile portion (36). The fixed portion (31) comprises a reducer set (32), with a differential gear box (33) and the engine thereof (10) and a control system (38).

Abstract: A hydrocarbon production facility includes: a hydrocarbon well; a hydrocarbon production line including: in the well, a production tube, and on the surface, an evacuation tube from the production tube; on the surface, a source of pressurized gas; an injection line of pressurized gas in the hydrocarbon production line, linked to the source of pressurized gas; a pump for circulation of hydrocarbon from the well hydrocarbon circulation; a pneumatic motor for supplying power to the pump, fitted on the injection line of the pressurized gas and adapted to be rotated by expansion of the pressurized gas. A corresponding production method and an upgrade method of a facility are also disclosed.

Abstract: A method of supplying crushed alkaline carbonate from a carbonate resource to a first calcining site having a design calcining capacity; solar calcining crushed carbonate within a prescribed carbon dioxide (CO2) delivery distance from a first enhancement location within a first hydrocarbon resource, whereby generating CO2 with a local CO2 generating capacity and an alkaline oxide; forming a first enhancing fluid comprising generated CO2 and delivering it into the first enhancement site having an injector well weighted first enhancement location, whereby mobilizing hydrocarbon in the first enhancement site; producing a produced fluid comprising mobilized hydrocarbon and enhancing fluid; recovering liquid hydrocarbon from the produced fluid; wherein the prescribed CO2 delivery distance is less than 67% of a remote CO2 delivery distance, to the first enhancement location from a remote calcining site having an equal or greater design calcined CO2 generating capacity.

Abstract: The disclosure pertains to methods for completing a well comprising lowering a coiled-tubing in the well thus forming an annulus between the casing and the coiled-tubing, pumping down said annulus a treatment fluid above the fracturing pressure of the formation while also pumping fluid through the coiled tubing; monitoring in real-time the bottom hole pressure, increasing the pump rate through the coiled-tubing if an increase of bottom hole pressure is observed.

Abstract: Disclosed is a nozzle including a housing, the housing including a first portion and a second portion, the first portion and the second portion being in fluid communication via a front hole, and a side hole being provided on a side wall of the second portion. The nozzle further includes a sealing assembly able to open and close the front hole and the side hole in a sliding manner in the housing, and a spring provided between the housing and the sealing assembly. Furthermore, an underground coal gasification method using the nozzle is disclosed, which includes the steps of adjusting the injection flow rate and injection pressure of a gasification agent and the pressure of a gas output channel port, and controlling the opening and closing of the front hole and the side hole. The nozzle can optionally alternately or simultaneously open the front hole and the side hole without any manual operation.

Abstract: Systems and methods are provided for decontaminating or rehabilitating an oilfield completion fluid by mixing a chemical oxidizer with the fluid, separating the oxidized contaminates from the fluid and concentrating the fluid to a desired specific gravity.

Abstract: A system for stimulating oil or gas production from a wellbore includes a hydraulic fracturing pump unit having one or more hydraulic fracturing pumps driven by one or more electrical fracturing motors, a variable frequency drive (VFD) controlling the electrical fracturing motors, a fracturing pump blower unit driven by a blower motor, and a fracturing pump lubrication unit having a lubrication pump driven by a lubrication motor and a cooling fan driven by a cooling motor. The system may further include a blender unit and a hydration unit. A system control unit may control the operational parameters of the system.

Abstract: An example method for distributed sensing in a subterranean formation may include drilling to a first depth in the subterranean formation using a drilling device and detaching a first phase of the drilling device at the first depth. The first phase may include a first coil of line and a first sensor. The drilling assembly may drill to a second depth and decouple a second phase of the drilling device, with the second phase including a second coil of line and a second sensor. Measurements may be generated at the first and second depths using the first and second sensors, respectively.

Abstract: Methods may include pumping a cement composition containing one or more conductive fillers into an annular region of a wellbore created between a casing and a surface of the wellbore, allowing the cement composition to cure, emplacing a tool for measuring at least one electromagnetic property into the wellbore, and measuring at least one of the cemented casing and the formation. In another aspect, methods may include preparing a cement composition containing one or more conductive fillers, allowing the cement composition to set, and measuring at least one electromagnetic property of the set cement. In yet another aspect, cement compositions may contain a cement, one or more conductive fillers, and a surfactant, wherein the resistivity of the cement composition is less than 10 ?*m.

Abstract: A downhole tool having opposing interfaces for incorporation of the downhole tool into a downhole tool string. A housing extends between the opposing interfaces, and a bore extends longitudinally through the housing between the opposing interfaces. An accelerometer is disposed within the bore of the housing for detecting acceleration of the downhole tool in response to a mechanical impact generated elsewhere within the downhole tool string. The accelerometer generates an output signal indicative of the acceleration. The downhole tool also includes a processor for processing the output signal, a memory device for storing the output signal or data generated by the processor, and an electrical energy source powering the processor and the memory device.

Abstract: A system and method for rapid deployment of fiber optic distributed sensing cables, conventional electronic cables, or hydraulic control lines in the annulus of a wellbore along a specific well zone without the need to clamp cables to the casing or tubing string for support.

Abstract: A housing contains an internal volume. A heat-sensitive device is contained by the housing and consumes a device percentage of the internal volume. The device percentage equals the percentage of the internal volume of the housing consumed by the heat-sensitive device. A phase-change material is positioned within the housing to conduct heat from the heat-sensitive device. The phase-change material consumes a percentage of the internal volume equal to 100 percent minus the device percentage minus an expansion percentage. The phase-change material expands in volume by an amount more than 75 percent of the expansion percentage upon occurrence of a phase-change event.

Abstract: The disclosure describes enhanced determination of dip and strike/azimuth for real-time MCI data processing in some difficult conditions such as low-dip and low-anisotropy formations using formation properties from surrounding layers. The method is effective for the enhanced determination of dip and azimuth to enhance the inversion accuracy of formation dip and azimuth if the formation anisotropic ratio is low and so reduce the uncertainty of the inverted dip and azimuth.

Abstract: An interwell tomography method includes casing a first borehole with a casing tubular having at least one transmission crossover arrangement, each transmission crossover arrangement having an adapter in communication with a coil antenna that encircles an exterior of the casing tubular. The method also includes deploying, inside the casing tubular, a conductive path that extends from a surface interface to the at least one transmission crossover arrangement. The method also includes providing a set of one or more antennas in a second borehole. The method also includes obtaining electromagnetic (EM) measurements for interwell tomography using the at least one transmission crossover arrangement and the set of one or more antennas, where said obtaining involves conveying data or power between the at least one transmission crossover arrangement and the surface interface via the conductive path.

Abstract: Disclosed embodiments include well ranging apparatus and systems that comprise well casing material installed in a well, well cement attached to the well casing material, and a device to conduct electromagnetic waves, the device disposed along a length of the well, substantially parallel to the well casing material, the device to be used in direct transmission or backscatter transmission of ranging signals. In some embodiments, the device comprises at least one of a conductor, an insulated conductor, a coaxial cable, a waveguide, a capacitor, or an inductor. Additional apparatus, systems, and methods are disclosed.

Abstract: Systems and methods provide a mechanism to provide enhanced features for well ranging. Various embodiments may include generating a current profile for a target well, acquiring magnetic signals at a second well, and determining ranging to the target well with respect to the second well using the magnetic signals and the current profile. Additional apparatus, systems, and methods are disclosed.

Abstract: An interwell tomography method includes casing a first borehole with a casing tubular having at least one transmission crossover arrangement, each transmission crossover arrangement having an adapter in communication with a coil antenna that encircles an exterior of the casing tubular. The method also includes deploying, inside the casing tubular, a conductive path that extends from a surface interface to the at least one transmission crossover arrangement. The method also includes providing a set of one or more antennas in a second borehole. The method also includes obtaining electromagnetic (EM) measurements for interwell tomography using the at least one transmission crossover arrangement and the set of one or more antennas, where said obtaining involves conveying data or power between the at least one transmission crossover arrangement and the surface interface via the conductive path.

Abstract: Downhole water level detecting apparatus for detecting the level of water in a formation in the region of a well installation. The detecting apparatus includes a transmitter for applying electrical signals to a signaling loop at a first location. The signaling loop includes a downhole metallic structure of the well installation and an earth return. The detecting apparatus also includes a detector for monitoring electrical signals in the signaling loop, and an evaluation unit arranged for determining a level of water in the formation relative to the downhole metallic structure in dependence on the monitored signals.

Abstract: A downhole well fluid sensing device is disclosed for determining thermal conductivity of a formation fluid produced by a sampled subterranean well, the sensor package having an annulus shaped, elongate body defining a cylindrical fluid sampling space, the elongate body and the sampling space having a common longitudinal center axis. The elongate body has a fluid entrance port that provides well fluid ingress into the fluid sampling space and a fluid exit port that provides well fluid egress out of the fluid sampling space. A heat source is coupled to the elongate body and located along a portion of the fluid path, and the heat source inputs heat into sampled well fluid. Finally, temperature sensing devices located between the fluid entrance port and fluid exit port measure heat conducted to the sampled well fluid, wherein each of the temperature sensing devices is radially spaced from the heat source.

Abstract: A well tool can include a magnetic sensor having opposite sides, and a magnetic shield that conducts an undesired magnetic field from one side to the other side of the sensor. Another well tool can include a magnetic sensor in a housing, the sensor having opposite longitudinal sides relative to a housing longitudinal axis, and a magnetic shield interposed between the housing and each of the opposite longitudinal sides of the magnetic sensor. Another well tool can include at least two magnetic sensors, one magnetic sensor sensing a magnetic field oriented orthogonal to the housing longitudinal axis, and another magnetic sensor sensing a magnetic field oriented parallel to the longitudinal axis, and a magnetic shield interposed between a housing and each of opposite longitudinal sides of the magnetic sensors.

Abstract: Systems, methods, and computer-readable storage devices for determining a location of an acoustic source outside of a borehole. The method relates to indicating a radial distance to the borehole, an offset along the borehole, and an azimuthal position around the borehole, of the acoustic source. The method includes receiving acoustic signals from respective acoustic sensors spaced along a tool lowered within the borehole. Using the acoustic signals and a borehole model, stacked energies are calculated for different radial distances from the borehole. At least one of the stacked energies is translated to an indication of a radial distance of the acoustic source from the borehole. The stacked energy for a radial distance is computed by offsetting the acoustic data signals in time in accordance the borehole model, summing the offset acoustic data signals to produce a stacked signal, and evaluating energy of the stacked signal over a time window.

Abstract: Systems and methods for using very small devices, “McNano devices,” to facilitate and enhance operations, systems, and methods, including in the oilpatch. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).

Abstract: A multilateral production control method includes casing a first borehole with a casing tubular having at least one transmission crossover arrangement, each transmission crossover arrangement having an adapter in communication with a coil antenna that encircles the casing tubular. The method also includes completing a second borehole with an inflow control device. The method also includes deploying, inside the casing tubular, a conductive path that extends from a surface interface to the at least one transmission crossover arrangement. The method also includes communicating between the surface interface and the inflow control device using the at least one transmission crossover arrangement.

Abstract: A casing segment includes a conductive tubular body and at least one transmission crossover arrangement. Each transmission crossover arrangement has an inductive adapter in communication with a coil antenna that encircles an exterior of the tubular body.

Abstract: An acoustic communications network includes acoustic modems that exchange messages on an acoustic communications medium, such as tubing deployed in a wellbore. The acoustic communications medium is characterized by an acoustic transfer function having a plurality of passbands and a plurality of stopbands. The messages are communicated by encoding the message into a plurality of symbols representing the message and distributing the plurality of symbols across a bandwidth of a wideband acoustic signal that spans at least one passband and at least one stopband of the acoustic transfer function.

Abstract: A method for extending the range of acoustic data communication within a fluid enclosed in a pipe, such as in a production petroleum well. The method includes providing an acoustic transmitter and receiver in the pipe separated by a distance d. The transmitter converts the ith data bit into a propagating waveform in the pipe. The propagating waveform is received by the receiver after traversing the distance d. The received propagating waveform for the given data bit is then compensated for dispersion using an adaptive process to find the best statistical fit between the dispersed signal and the known signal shape.

Abstract: An apparatus and method to improve transmission of mud pulse telemetry signals is described. A mud pulser is placed in series with a water hammer pulse valve. While generating pulse signals, the mud pulser modulates the flow of mud downstream to the pulse valve. The pulse valve, which cycles at a frequency that is proportional to the flow rate through the tool, operates at a frequency that is effectively modulated by the mud pulser. A sensor that may be at the surface receives a mud pulse signal that comprises both an amplitude modulated component as well as a frequency modulated component.

Abstract: Sensor assemblies are described for measuring isotropic, anisotropic, or directionally dependent, characteristics of a subterranean formation. Sensor assemblies can include sensors deployed on a tool string. One or more of the sensors can be rotatable relative to the tool string. Rotating one or more sensors relative to the tool string can provide data about the subterranean formation at multiple points around the tool string.

Abstract: Systems and methods are presented for communicating data representing formatted characteristics of a borehole from a downhole location to a surface location. A sensor array downhole produces a first data set from which a plurality of coefficients for use in a one-dimensional angular function are determined. The coefficients are transmitted to the surface to allow a second data set to be prepared representing the first data set. Other systems and methods are presented.

Abstract: Flow electrification sensors and methods relating thereto may be useful in characterizing fluids, especially the in situ characterization of fluids produced during oil and gas production operations. For example, a system may include a flow path; a flow electrification sensor at least partially contained within the flow path, the flow electrification sensor comprising a static charge accumulator and an insulator arranged such that the static charge accumulator interacts with a fluid in the flow path; a reference sensor; and a signal processor communicably coupled to the flow electrification sensor and the reference sensor.

Abstract: A reversing mechanism for a pneumatically or hydraulically powered tool having a rotor adapted to rotate in either of first and second rotational directions. The reversing mechanism allows a user to actuate a button and rotate a valve to direct air flow through the tool. By pressing the button, the button will move a base laterally, and in doing so, rotates the valve. Rotating the valve then aligns a barrier of the valve in a direction tangential to the selected rotational direction of the tool, better directing forced air or fluid and more efficiently distributing the air or fluid in the selected rotational direction.

Abstract: Provided is a nut (12) configured to engage with an end portion on a first side of each of bolts (11) that pass through a plurality of rotary members in an axial direction at a plurality of locations in a circumferential direction having an axis (A) as the center thereof, the plurality of rotary members being stacked along the axial direction in which the axis (A) extends, the nut (12) comprising a first cover surface (35), which is the surface opposite a surface that faces a second side opposite the first side of the bolts (11), wherein, among all surfaces of the nut, at least the first cover surface (35) cooperates with the first cover surface (35) of another nut (12) to form a continuous annular surface with the axis (A) as the center thereof.

Abstract: A stator of a turbine of a gas turbine, having a flow duct in which stator vanes are arranged, each vane having an outer and an inner vane platform, and each having a cooling air chamber formed by adjacent vane platforms for passing through cooling air, characterized in that the resultant cooling air chamber and/or a platform intermediate gap are designed such that starting from a side of the vane platform facing the adjacent vane platform, at least one outflow pocket open to a platform upper side and connected to the cooling air chamber is formed, and that in the wall of the cooling air chamber, at least one cooling air pocket opened radially inwards to the cooling air chamber and limited by an intermediate element or a sealing strip is formed and opens to the platform intermediate gap.

Abstract: A rotor of a turbine of a gas turbine, having a rotor hub and a plurality of blade platforms, each carrying at least one turbine blade, and having one each cooling air chamber for passing cooling air formed by adjacent blade platforms. At least one damping element and/or sealing element is arranged radially beneath a platform intermediate gap provided between adjacent blade platforms. The cooling air chamber and/or the platform intermediate gap are designed such that starting from a side of the blade platform facing the adjacent blade platform, at least one outflow pocket open to the platform upper side and connected to the cooling air chamber is formed, and at least one cooling air pocket opened radially inwards to the cooling air chamber is provided in the wall of the cooling air chamber and opens towards the damping element and/or the sealing element or the platform intermediate gap.

Abstract: Embodiments of the invention relate generally to rotary machines and, more particularly, to the reducing mixing of packing leakage and the main flow of hot gas or steam in gas and steam turbines, respectively. In one embodiment, the invention provides a turbine bucket comprising: a platform portion; an airfoil extending radially outward from the platform portion; and at least one recess extending radially inward into the platform portion, the at least one recess being disposed at an angle relative to a leading edge of the platform portion.

Abstract: A component for a gas turbine engine includes an airfoil that has a first end. A first platform is located at the first end of the airfoil. A compound fillet includes a first fillet portion tangent to the first platform and an airfoil offset. A second fillet portion is tangent to a surface of the airfoil and the first fillet portion.

Abstract: The present application relates to a composite airfoil for a low-pressure compressor of an axial-flow turbomachine. The airfoil includes a platform and an aerodynamic airfoil having a leading edge and a trailing edge. The airfoil extends into the primary flow of the turbomachine. The airfoil includes a body extending from the leading edge to the trailing edge and a reinforcement of the leading edge of the airfoil. The reinforcement includes a reinforcing sheet, which extends from the leading edge to the trailing edge, and which is arranged in the thickness of the body in such a way as to reinforce it. In addition, the reinforcement includes a shell forming the leading edge and which is integral with the sheet. The sheet is a titanium sheet, and the body includes a composite material having an organic matrix charged with fibres. This configuration improves the rigidity and the resistance to corrosion while lightening the airfoil.

Abstract: A process of producing an article and an article made are provided. The process includes producing a near-net shape component. The process includes forming a consolidation shell by additive manufacturing. The consolidation shell defines an interior space having a geometry corresponding to a component. A metallic powder is provided to the interior space. Gas is removed from the interior space. The metallic powder is consolidated in the consolidation shell under sufficient heat and pressure to form the near-net shape component.

Abstract: One exemplary embodiment of this disclosure relates to a method of forming an engine component. The method includes forming an engine component having an internal passageway, the internal passageway formed with an initial dimension. The method further includes establishing a flow of machining fluid within the internal passageway, the machining fluid changing the initial dimension.

Abstract: A flow path component for a gas powered turbine including a flow path component body having cross sectional profile having a leading edge and a trailing edge, the leading edge being connected to the trailing edge by a first side and being connected to the trailing edge by a second side opposite the first side, a serpentine cooling passage including a plurality of segments, each of the segments being generally radially aligned, wherein a first subset of the segments disposed along one of the first side and the second side of the cross sectional profile, and a second subset of the segments spans the flow path component body from the first side to the second side, and a cavity internal to the flow path component body, wherein the cavity is at least partially shielded from one of the first side and the second side by at least one of the plurality of segments.

Abstract: A turbine rotor blade includes a tip portion having a pressure tip wall and a suction tip wall, a tip leading edge and a tip trailing edge. Also included is a squealer cavity at least partially defined by the pressure tip wall and the suction tip wall. Further included is at least one hole defined by the suction tip wall, the at least one hole configured to bleed a cooling flow out of the squealer cavity into a hot gas path to reduce pressure within the squealer cavity. Yet further included is a main body having a suction side wall and a pressure side wall each extending from a root portion of the turbine rotor blade to the tip portion.

Abstract: An airfoil includes a squealer tip at an outer radial end of the airfoil. A squealer tip pocket of the squealer tip has a convex side and a concave side, and a tip plate. A divider extends across the tip plate from the concave side to the convex side to divide the squealer tip pocket into a first pocket and a second pocket. At least one cooling passage through the tip plate in the second pocket provides fluid communication through the tip plate from an interior of the airfoil to the second pocket. The first pocket is fluidically disconnected from the interior of the airfoil.

Abstract: A fan blade for an aircraft engine, including a leading edge, a trailing edge, a suction side, a pressure side and a blade tip, is provided. The fan blade has a large-area elastomer layer which takes up at least 20% of the surface of the suction side of the fan blade.

Abstract: A turbine shroud for a gas turbine engine includes a carrier and a blade track segment. The carrier is formed to include an inwardly opening blade track channel and the blade track segment is positioned in the blade track channel to couple the blade track segment with the carrier.

Abstract: A mid-turbine frame (MTF”) for a jet engine is disclosed and comprises a duct that extends between a high pressure turbine (“HPT”) and a low pressure turbine (“LPT”), the duct comprising a plurality of segments that together form an outer annular structure and an inner annular structure, the inner annular structure situated radially inward of the outer annular structure, and/or a plurality of vanes that extend radially outward from the inner annular structure toward the outer annular structure, each vane comprising a channel. Each segment may be coupled to an adjacent segment by a seal.

Abstract: An airfoil includes an airfoil body extending from an inner diameter platform to an opposed outer diameter platform along a longitudinal axis. The airfoil body defines a leading edge and a trailing edge and has a cavity defined between the leading edge, the trailing edge, the inner diameter platform and the outer diameter platform. The cavity includes an airfoil protrusion extending inward from an inner surface of the airfoil body. The airfoil includes a baffle body within the cavity extending along a baffle body axis. The baffle body has a baffle protrusion extending along a central protrusion axis at an angle with respect to the baffle body axis. The end of the baffle protrusion abuts an end of the airfoil protrusion. A flow path is defined between the inner surface of the airfoil body and the outer surface of the baffle body.