Abstract: Embodiments of the present disclosure relate to a cutter tool for cutting tubulars from the inside thereof. The tubulars can be an oil well or a gas well, pipeline or other type of tubular. The cutter tool can include a housing that is insertable within the tubular and a cutting member that is receivable within the housing. The cutting member has a first end and a second end with the first end for cutting the tubular. The tool also includes a first shaft with a first shaft-end and a second shaft-end. The first shaft-end is releasably connectable to the housing. The tool also includes a second shaft that is connectable with the second end of the cutting member. The cutting member is moveable within the housing between a retracted position and an extended-and-cutting position by movement of the second shaft.

Abstract: A method of establishing fluid communication between wellbores can include forming a flow path from one wellbore to another wellbore, a flow area of the flow path increasing in a direction from the first wellbore toward the second wellbore. An explosive assembly for use in a well can include an explosive device having multiple explosive charges, the explosive charges producing longitudinal shock waves that collide with each other and result in a laterally directed shock wave, and a shield that focuses the laterally directed shock wave into a predetermined angular range of less than 360 degrees. A method of establishing fluid communication between wellbores can include forming a flow path from one wellbore to another wellbore, the flow path intersecting an uncased portion of the second wellbore.

Abstract: A casing exit joint with guiding profiles and methods for use are provided. In one embodiment, a casing exit joint comprises: a substantially tubular casing joint comprising an inner surface and an outer surface, wherein at least a circumferential portion of the inner surface comprises a plurality of axial inner grooves. In certain embodiments, at least a circumferential portion of the outer surface may comprise a plurality of axial outer grooves. The casing exit joint may be disposed in a wellbore penetrating at least a portion of a subterranean formation, and a cutting tool may cut a window through at least a portion of the casing exit joint. In certain embodiments, the axial inner grooves and/or outer grooves may reduce the amount of milling debris, prevent lateral displacement of the cutting tool, and/or eliminate the need to pre-orient the casing exit joint to achieve the desired exit window.

Abstract: An apparatus and method for connecting and selectively disconnecting within a wellbore first and second portions of a downhole tool string from each other. The apparatus may be a downhole tool having a first connector sub connectable with the first portion of the downhole tool string, a second connector sub connectable with the second portion of the downhole tool string, an internal chamber, and a fastener connecting the first and second connector subs. At least a portion of the fastener fluidly separates the internal chamber into a first chamber portion and a second chamber portion. The first chamber portion is fluidly connected with the space external to the downhole tool. The downhole tool is selectively operable to disconnect the first and second connector subs from each other to disconnect the first and second portions of the downhole tool string from each other.

Abstract: A pump drive head for a progressing cavity pump comprises a top mounted stuffing box rotatably disposed around a compliantly mounted standpipe with a self or manually adjusting pressurization system for the stuffing box. To prevent rotary and vertical motion of the polish rod while servicing the stuffing box, a polished rod lock-out clamp is provided with the pump drive head integral with or adjacent to a blow-out-preventer which can be integrated with the pump drive head to save space and cost. A centrifugal backspin braking system located on the input shaft and actuated only in the backspin direction and a gear drive between the input shaft and output shaft are provided.

Abstract: An RCD includes a housing, a seal assembly package, and a seal tube assembly. The seal tube assembly includes a seal tube, a seal, a first bearing, and a second bearing. The seal is coupled between the first and second bearings. The first bearing includes a flow path between the interior of the seal tube and the annular space between the seal and the seal tube. The SAP includes an SAP outer body positioned within the housing and fluidly sealed thereto. The RCD may include a running tool coupled to the SAP having one or more grippers for engaging a tool string passing through the RCD.

Abstract: An RCD includes a housing, a seal assembly package, and a seal tube assembly. The seal tube assembly includes a seal tube, a seal, a first bearing, and a second bearing. The seal is coupled between the first and second bearings. The first bearing includes a flow path between the interior of the seal tube and the annular space between the seal and the seal tube. The SAP includes an SAP outer body positioned within the housing and fluidly sealed thereto. The RCD may include a running tool coupled to the SAP having one or more grippers for engaging a tool string passing through the RCD.

Abstract: A downhole system includes a packer assembly including a backup ring. The backup ring includes a plurality of nested leaves nested sequentially in a circumferential direction with adjacent circumferentially positioned leaves to collectively form a substantially circular shape. Each leaf includes a receiving section and an insertion section, the receiving section receiving an insertion section of an adjacent leaf. Upon radial expansion of the backup ring, the plurality of nested leaves fan out in the circumferential direction.

Abstract: A tool is provided for use in closing and sealing the cased bore of a well to be abandoned. The tool is nm into the bore, the tool having a stack of pleated rings slidably mounted on a tubular mandrel. The tool is engaged with the casing and a charge of hot asphaltic sealant is discharged from a conveyed container to flood the stack and tool annulus. The stack is compressed axially to partly flatten and radially expand the rings to frictionally engage the surrounding casing, the rings and sealant sealing the bore. Further, the rings can expand the heated casing for sealing casing/cement interfaces. The sealant solidifies and creates an impermeable mass sealing against surfaces of the mandrel, stack and casing.

Abstract: Example systems, apparatus, and methods are described for providing continuous backup rings that are swaged into closed gland seal grooves to reduce extrusion of elastomeric sealing elements in packers. In an example embodiment, the closed gland sealing system includes a mandrel body having a cylindrical outer surface. A seal mandrel portion of the mandrel body is defined by an annular recess in the mandrel body that extends radially around the substantially cylindrical outer surface to form a closed gland groove. A sealing element is positioned in the closed gland groove and extends radially around the seal mandrel portion. Further, a continuous backup ring is positioned in contact with the sealing element in the closed gland groove that also extends radially around the seal mandrel portion.

Abstract: A downhole plug for use in completion operations within the casing of an oil well is disclosed. The settable downhole tool has a mandrel, a wedge, a seal, load ring, ratchet ring, a bottom shoe, and a ball seat. In addition, the downhole tool contains only a single slip engaging the mandrel, the slip comprised of numerous panels with multiple buttons thereon. During setting of the downhole tool, the single slip engages the wedge and is forced outward to engage the casing so as to hold the downhole tool in place during subsequent operations, including, for example, fracing.

Abstract: Downhole plugs having single anchoring mechanisms and methods thereof are disclosed. The plug comprises of inner mandrel with proximal portion and distal portion, outer assembly and one or more retaining members. The outer assembly comprises of support element, elastomeric element for sealing the gap between the plug and casing, anchoring mechanism at the distal portion for anchoring the plug to the casing and nose element. The elastomeric element is retained in a compressed state at the downhole end by the anchoring mechanism and at the up hole end by the retaining members. In some embodiments, the retaining members are snap rings that are pushed down from step portions at the proximal portion when the plug is mobilized to a set position thereby retaining the elastomeric element. In some embodiments, the retaining members are ratcheted open rings that ratchet over the proximal portion thus retaining the elastomeric element.

Abstract: A wellbore tool includes a rotatable elongate pipe that includes a first elongate portion extending along a longitudinal axis of the elongate pipe. A first bending portion with a first end attaches to a downhole end of the first elongate portion. The first bending portion deviates from a longitudinal axis of the first elongate portion in a first direction. A second bending portion has a first end attached to a second end of the first bending portion. The second bending portion is positioned downhole of the first bending portion. The second bending portion deviates towards the longitudinal axis in a second direction different from the first direction. The first bending portion and the second bending are eccentric relative to the first elongate portion. The wellbore tool is rotated a set amount and stabbed in a downhole direction until the wellbore tool enters the parted casing.

Abstract: Apparatuses, systems and methods for plugging a well bore. A plug formation apparatus includes a plug support tool having a substantially cylindrical and hollow body having one or more ports for fluid communication between an interior of the plug formation apparatus and an annulus of a well bore, a base extending radially around an outer surface of the body, and an elastically deformable member extending radially around an outer surface of the body beyond the base and supported by the base; a top-of-cement bypass sub having one or more ports, actuatable between a closed position and an open position; a detachment member coupled with the top-of-cement bypass sub; and a length of tubing fluidically coupled with an upper portion of the plug support tool and a lower portion of the top-of cement bypass sub.

Abstract: Systems and methods for signaling the detection of a fluid change in a wellbore can be used during wellbore operations, such as cementing a casing in the wellbore. The systems and methods involve using burst discs to provide a pressure pulse that can be detected uphole and there by provide a signal related to when a fluid change has reached a predetermined position in the wellbore. The burst discs can be activated to prevent fluid flow in a portion of the wellbore by a sensor that detects a property that is different between two fluids. Once activated, the pressure of the fluid on the burst discs subsequently ruptures the burst disc and creates the pressure pulse.

Abstract: A method for performing an integrated cementing operation at a wellsite is disclosed. The method involves simulating a cementing operation including pumping sequences for selectively pumping drilling fluid and cement into the wellbore according to pre-operation simulated pumping parameters, measuring real-time pumping parameters of the drilling fluid and the cement according to the pumping sequences, during the measuring, simulating real-time pumping parameters for each of the defined pumping sequences based on the measured real-time pumping parameters, and comparing the real-time simulated pumping parameters with the pre-operation simulated pumping parameters. The method may also involve measuring a return flow rate of fluid flowing out of the wellbore, defining a loss zone within the wellbore, simulating the return flow rate based on the input flow rate, and generating a rate of the fluid loss such that the simulated return flow rate equals the actual return flow rate.

Abstract: Downhole assemblies and methods for isolating a wellbore. A downhole tool can include a body having a bore or flowpath formed therethrough, and one or more sealing members disposed therein. The one or more sealing members can include an annular base and a curved surface having an upper face and a lower face, wherein one or more first radii define the upper face, and one or more second radii define the lower face, and wherein, at any point on the curved surface, the first radius is greater than the second radius. The sealing members can be disposed within the bore of the tool using one or more annular sealing devices disposed about the one or more sealing members.

Abstract: A pressurized seat check valve including a flexible frustoconical seat having a back surface configured for exposure to upstream pressure, a closure member in sealable communication with the seat, the closure member being biased into contact with the seat and, in use, the seat being deflected toward the closure member by the exposure to upstream pressure.

Abstract: A reclosable multi-zone isolation tool including a mandrel assembly with a pull-force lock feature. The tool includes an outer and inner tubular having an annular flow path defined there between, and a central flow path defined by the inner tubular. The annular flow path is in fluid communication with the first zone, while the central flow path is in fluid communication with the second zone. A sleeve is positioned in the annular flow path and moveable between an open and closed position. A mandrel assembly is slidingly positioned within the inner tubular and coupled to the sleeve to actuate the sleeve between the open and closed position only when a push force is applied. If a pull force is applied, the mandrel assembly “locks out,” thereby preventing movement of the sleeve.

Abstract: An erosion protection system for closing sleeve assemblies is disclosed. A closing sleeve assembly including a housing; a port formed in the housing; a sealing surface formed in the housing adjacent to the port; a closing sleeve configured to move between an open position, in which a fluid flow through the port is permitted, and a closed position, in which the fluid flow through the port is prevented, the closing sleeve including a seal configured to engage with the sealing surface to form a fluid and pressure tight seal when the closing sleeve is in the closed position; and a protective sleeve configured to extend toward the port to substantially cover the sealing surface when the closing sleeve is moved to the open position and retract away from the port when the closing sleeve is moved to the closed position.

Abstract: A closing sleeve assembly with a ported sleeve is disclosed. The closing sleeve assembly includes a housing; a port formed in the housing; a sealing surface formed in the housing adjacent to the port; and a closing sleeve configured to move between an open position and a closed position. The closing sleeve includes an uphole portion configured to substantially cover the sealing surface when the closing sleeve is moved to the open position; a port formed in the closing sleeve and configured to substantially overlap with the port formed in the housing when the closing sleeve is in the open position; and a seal configured to engage with the sealing surface to form a fluid and pressure tight seal when the closing sleeve is in the closed position.

Abstract: A concentric flow valve for a dual zone completion tool includes an upper seal bore sleeve, lower inner sleeve, ported sub, opening sleeve, and piston positioned within an outer sub. The upper seal bore sleeve, ported sub, and outer sub define an upper flow bore, and the lower inner sleeve, ported sub, and outer sub define a lower flow bore. The ported sub includes an upper ported sleeve coupled to the upper seal bore sleeve and a lower ported sleeve coupled to the lower inner sleeve, each ported sleeve including a valve port selectively fluidly coupling the respective flow bore to a valve flow path defined by the opening sleeve and ported sub, such that the upper and lower seal bores are fluidly coupled when the opening sleeve is in an open position. The piston is mechanically coupled to the opening sleeve and defines an opening chamber.

Abstract: A system configured to predict and optimize operating life of a piece of drilling equipment includes a plurality of operating sensors coupled to a piece of drilling equipment, wherein each of the operating sensors is configured to measure an operating condition of the piece of drilling equipment. A control system in communication with the operating sensors is configured to calculate an operating life of the piece of equipment based on the operating conditions.

Abstract: Systems, apparatus, and methods for duplicating a shear rate of a fluid in a process system and for sensing one or more properties at that shear rate. In some embodiments the process system is a blending system for frack water. In some embodiments, the systems comprise two spools: one spool containing a pH sensor and an oxidation reduction potential sensor whereby a controller senses the corresponding properties of the water therein. And whereby, if her sensed property is outside of a corresponding user selected range, the controller closes a valve to isolate the system from the process. Note that that systems of embodiments further comprise flow control valves to set a flowrate in the system to a value consistent with match a share rate in a process system with which the system might be in fluid communication.

Abstract: A downhole tool and method for orienting a tool string within a passage, such as a wellbore or a tubular disposed in the wellbore. The downhole tool may be operable for detachably connecting with the tool string and orienting the tool string within the passage. The downhole tool may include a frame comprising a first frame portion and a second frame portion, wherein the first and second frame portions may be detachably connectable with each other around the tool string to detachably connect the frame with the tool string. The downhole tool may further include a first orienting feature rotatably connected with the first frame portion along a first axis of rotation and a second orienting feature rotatably connected with the second frame portion along a second axis of rotation. The first and second axes of rotation may be radially offset from a central axis of the tool string.

Abstract: A welding tool for welding a blanking plate within a wellbore casing downhole thereby sealing the wellbore is described. The tool comprises a tubular body of a diameter sufficiently narrow to fit in a wellbore casing, the tubular body having a downhole end and a surface end; and a welding head assembly connected to the downhole end of the tubular body. The welding head assembly comprises a connector device for retaining a blanking plate to be welded within the wellbore casing, and a welding powder container which comprises a chamber for holding the exothermic welding powder, the chamber having at least a portion extending adjacent the blanking plate to be retained and proximate the wellbore casing to which the blanking plate is to be welded when the tool is positioned downhole in the wellbore casing; and an igniter wire opening for accommodating an igniter wire extending into the chamber.

Abstract: A thermal battery positioned in a wellbore can be force activated by a device. The device can include a body coupled to a thermal battery positioned in a wellbore. The body can include a piston retained at a first position in an inner area of the body. The piston can move from the first position to a second position in response to a force applied to the body. The thermal battery can be activated by moving the piston to the second position.

Abstract: An assembly may include a diverter extending inwardly from a casing string and extending along a length of the casing string. The assembly may also include a cavity defined by the diverter and the casing string. The cavity may be for receiving debris particles accumulated by a centrifuge positioned proximate to the diverter. The assembly may also include a valve extending between an inner surface of the casing string and an outer surface of the casing string, the valve may be in fluid communication with the cavity.

Abstract: An apparatus may include a slotted filter that is generally circular in shape and positionable within a casing string. The slotted filter may include multiple filter chambers. Each of the multiple filter chambers may include a rear wall; side walls that intersect the rear wall; slots in the rear wall and the side walls; a bottom surface; and an open end positionable proximate to a centrifuge in the casing string for receiving a fluid containing debris particles collected by the centrifuge.

Abstract: A downhole system having a liner hanger assembly includes a liner hanger and a running tool. The running tool includes a tubular and an expandable member disposed circumferentially around the tubular. The expandable member is configured to increase in volume from a first condition to a second condition at a surface location. The second condition of the expandable member connects the running tool to the liner hanger.

Abstract: A plunger lift assembly is provided comprising a flow diverter that effects separation of gaseous material from reservoir fluid. The gaseous material may be collected to provide a source of pressurized gaseous material to displace the plunger for producing liquid reservoir fluid.

Abstract: A containment apparatus for protecting a surrounding environment from leaks originating from a stuffing box is provided. In some embodiments, the containment apparatus utilizes a float switch to switch off a pump associated with the stuffing box when the level of a liquid in the vessel exceeds a predetermined level. The switch can communicate ultrasonically with a receiver that relays a message to a user. In some embodiments, the vessel comprises two half vessels that are lined by a metal frame along their mating edges.

Abstract: A technique facilitates use of a submersible pumping system deployed downhole in a borehole. A docking assembly comprises a docking station which has at least one electrical wet connector and is coupled to a receiving tubular. An electrical power cable is coupled to the docking station to enable electrical power to be provided to the at least one electrical wet connector. The docking assembly is deployed downhole to a desired location in the borehole to enable coupling with the submersible pumping system. The submersible pumping system is simply moved downhole into the receiving tubular and into electrical engagement with the electrical wet connectors.

Abstract: Disclosed subject matter includes an artificial lift system including a rodless hydraulic pump actuator including an actuator housing assembly, an actuator piston assembly supported for reciprocal translation stroke movement relative to the actuator piston assembly, an actuator piston assembly production fluid passage extending through the actuator piston assembly, and a tubular coupling below the actuator housing assembly having a coupling flow passage to pass production fluid into the actuator piston assembly production fluid passage.

Abstract: A system and method are provided that use RF energy to enhance the extraction of oil and gas from hydrocarbon bearing strata. A three-dimensional underground electromagnetic array is used to guide RF energy to where that energy is convened to heat in the hydrocarbon bearing strata. The three dimensional underground electromagnetic array is a guided wave structure, as opposed to an antenna structure, to minimize the unwanted effects of the near fields associated with antennas. In one embodiment, the legs of the three-dimensional underground electromagnetic array are composed of production well pipe.

Abstract: The present invention provides a method and system for providing on-site electrical power to a fracturing operation, and an electrically powered fracturing system. Natural gas can be used to drive a turbine generator in the production of electrical power. A scalable, electrically powered fracturing fleet is provided to pump fluids for the fracturing operation, obviating the need for a constant supply of diesel fuel to the site and reducing the site footprint and infrastructure required for the fracturing operation, when compared with conventional systems.

Abstract: The present invention provides a method and system for providing on-site electrical power to a fracturing operation, and an electrically powered fracturing system. Natural gas can be used to drive a turbine generator in the production of electrical power. A scalable, electrically powered fracturing fleet is provided to pump fluids for the fracturing operation, obviating the need for a constant supply of diesel fuel to the site and reducing the site footprint and infrastructure required for the fracturing operation, when compared with conventional systems.

Abstract: The present invention provides a method and system for providing on-site electrical power to a fracturing operation, and an electrically powered fracturing system. Natural gas can be used to drive a turbine generator in the production of electrical power. A scalable, electrically powered fracturing fleet is provided to pump fluids for the fracturing operation, obviating the need for a constant supply of diesel fuel to the site and reducing the site footprint and infrastructure required for the fracturing operation, when compared with conventional systems.

Abstract: The present invention provides a method and system for providing on-site electrical power to a fracturing operation, and an electrically powered fracturing system. Natural gas can be used to drive a turbine generator in the production of electrical power. A scalable, electrically powered fracturing fleet is provided to pump fluids for the fracturing operation, obviating the need for a constant supply of diesel fuel to the site and reducing the site footprint and infrastructure required for the fracturing operation, when compared with conventional systems.

Abstract: The present invention provides a method and system for providing on-site electrical power to a fracturing operation, and an electrically powered fracturing system. Natural gas can be used to drive a turbine generator in the production of electrical power. A scalable, electrically powered fracturing fleet is provided to pump fluids for the fracturing operation, obviating the need for a constant supply of diesel fuel to the site and reducing the site footprint and infrastructure required for the fracturing operation, when compared with conventional systems.

Abstract: A method for fracturing a formation includes positioning a fluid treatment string in the formation. The fluid treatment string includes a port configured to pass fracturing fluid from within the string's inner bore to outside the string, and a sliding sleeve located inside string and configured to move by fluid pressure within the inner bore of the fluid treatment string between (i) a first position in which the sliding sleeve covers the port and (ii) a second position in which the sliding sleeve exposes the port to the inner bore. The method also includes applying a fluid pressure within the inner bore such that the sliding sleeve moves from the first position to the second position without the sliding sleeve engaging a sealing device, and pumping fracturing fluid through the inner bore and through the port to fracture a portion of the formation.

Abstract: The present invention relates to a mixture of various shapes of a dissolvable diverter material. Generally, the shapes range from a flake having a very high surface area to mass ratio the beads having a low surface area to mass ratio. However, the density of the various shapes may be manipulated by including voids or low-density materials within the shape. The density manipulation is desirable in order to match the transport properties of the various shapes to the transport fluid so that both shapes may arrive at the desired location at the desired time.

Abstract: A system and method of enhancing production of oil and gas from a reservoir is provided. More specifically, the present invention relates to systems and methods of positioning piezoelectric crystals in a production interval of a well. When activated, the piezoelectric crystals produce displacement (elongation and compaction) and cavitation within the wellbore to move particles within the well and fractures in the reservoir. In one embodiment, a fluid which includes a proppant material and a plurality of piezoelectric crystals is pumped into the well. The fluid may be a hydraulic fracturing fluid. In another embodiment, a plurality of piezoelectric crystals are interconnected to a body of a downhole assembly. The downhole assembly is configured to be positioned within a production interval of a wellbore. In one embodiment, the body includes a hollow bore.

Abstract: Systems and methods for controlling operation of a well, of which the method includes receiving an operation setting for operation of a system that provides lift gas into and produces gas from the well, monitoring operation of the system using a first controller, determining, using the first controller, that the system is not operating at the operation setting, and in response to determining that the system is not operating at the operation setting, sending, using a two-way communication link from the first controller to a second controller, a control signal to the second controller. The control signal is configured to cause the second controller to modify an operation of a compressor of the system.

Abstract: A horizontal directional drill and method relate to a control system adapted to operate a pipe transport apparatus to move a drill rod between a rod box and a connection area. The control system commands the pipe transport apparatus to perform a plurality of actions wherein at least one of the actions comprises two or more of the plurality of physical operations. The control system includes an operator input device configured to generate a command in response to an operator input. The control system may require persistent engagement of the operator input device to complete each action. The pipe transport apparatus pauses upon completing each of the plurality of actions until the command is again provided from the operator input device.

Abstract: A downhole closed loop method for controlling a curvature of a subterranean wellbore while drilling includes controlling a direction of drilling such that the drilling attitude is substantially equal to a setpoint attitude. A setpoint rate of penetration is processed in combination with a setpoint dogleg severity to compute a setpoint attitude increment. The setpoint attitude may be adjusted by the setpoint attitude increment. The setpoint attitude may be incremented at some interval to control the curvature of the wellbore while drilling.

Abstract: Various implementations described herein are directed to a method for surveying a wellbore. A statistical estimation process that combines magnetic survey measurement data and gyroscopic survey measurement data to form error estimates in a magnetic survey system is applied. The error estimates are used to correct magnetic survey data provided by the magnetic survey system. Magnetic only survey data is used when convergence of the error estimates has occurred. Information that facilitates drilling the wellbore is provided.

Abstract: The thickness of borehole casing can be determined by ultrasound logging in conjunction with simulations of ultrasonic plane-wave echo waveforms across a range of frequencies for a plurality of casing thicknesses and correlation of synthetic frequency spectra derived from the simulated plane-wave echo waveforms for the various casing thicknesses against the frequency spectrum of a measured pulse-echo waveform. In accordance with various embodiments, a portion of the measured pulse-echo waveform that corresponds to the first reflection off the interface between the borehole casing and the borehole fluid is used as a driving pulse to weight the simulated plane-wave echo waveforms in the synthetic frequency spectrum.

Abstract: Embodiments of the present disclosure include a system for driving an arm radially outward from a work string axis including a pivot block coupled to the arm at a first coupling, the arm rotating about the first coupling in a first direction to move from a stored position to an expanded position, and about the first coupling in a second direction to move from the expanded position to the stored position. The system also includes a biasing member that drives movement of the arm in the first direction. The system further includes a chamber for storing the biasing member within a pivot block diameter when the arm is in the stored position.

Abstract: Embodiments of the present disclosure include a sensor deployment system with a first bulkhead arranged at a first end of a downhole tool, a second bulkhead arranged at a second end of the downhole tool, opposite the first end, a first pivot block arranged proximate the first bulkhead, a second pivot block arranged proximate the second bulkhead, and an arm rotatably coupled to the first and second pivot blocks at opposite ends of the arm, wherein rotation of at least a portion of the arm drives at least a portion of the arm radially outward from an axis of the downhole tool.