Abstract: Embodiments presented provide for a method of making as well as an apparatus for holding a hydraulic fracturing plug in a desired position within a wellbore. The hydraulic fracturing plug is configured with a slip and wedge system to maintain the desired position within the wellbore.

Abstract: A high expandable straddle and a method of providing annular isolation at a location in a well bore. The straddle includes two expandable pipe sections with a base pipe section therebetween and end pipe sections for connection in a tubular string. The straddle may be run in tubing with restricted inner diameters and by the introduction of pressure to the saddle over 30% expansion can occur to the expandable pipe sections to seal and grip the tubing spanning a fault. An embodiment is described with the straddle being of unitary construction, the expansion pipe sections having thinned walls and being entirely formed of an austenitic stainless steel. An anchoring arrangement and/or seals may also be located on the expandable pipe sections.

Abstract: A frac plug with lower slips and a lower cone. In embodiments, a lower cone ramp angle is greater than or equal to a cone bevel angle and a slip inner cut angle. This geometry enables the fins of the cone to not interact with the lower slips, which may not break the lower slips as the lower slips move over the cone. Instead, the lower slips may break due to stresses caused by the tendency of the lower slips to expand as they lower slips interact with the ramp of the lower cone.

Abstract: A sealing assembly comprising a plurality of components including an upper sealing element and a lower sealing element, the sealing assembly configured to encircle a tubular string positioned within a casing of a wellbore. The sealing assembly is configured to be actuatable to extend sealing elements between the tubular string and an inner surface of the casing to form a fluid seal between the tubular element and the inner surface of the casing.

Abstract: Systems and methods presented herein include expanding and collapsing apparatus that include a slips cartridge that is bookended by seal elements. The pressure (e.g., whether from uphole and/or from downhole of the downhole tool) pushes at axial points at which the seal elements abut the slips cartridge. In addition, all of the load is transferred to the wellbore casing, and not to an inner mandrel at all. Specifically, the inner mandrel only experiences the setting force in tension. In addition, the elastomer that is being used is not stretched during expansion, but simply moved as it is expanded.

Abstract: A roll-out apparatus, method, and system is disclosed for deployment in a subterranean well at a setting location. The roll-out apparatus, method, and system includes a load ring and an energizing ring. The load ring may include an outer surface having an outer circumference and a slot extending through the entire wall thickness that follows a circuitous path from a front face to a back face of the load ring. The energizing ring includes an outer surface configured to contact an inner surface of the load ring to enlarge the outer circumference of the load ring in a radial direction. This causes the outer surface of the load ring to seal to an inner surface of the subterranean well at the setting location.

Abstract: Systems and methods for evaluating carbon dioxide emissions during drilling operations include measuring a plurality of mechanical drilling parameters and a plurality of drilling fluid parameters; determining a hole cleaning index that indicates an effectiveness of removing cuttings from a borehole, the hole cleaning index comprises a cutting concentration in an annulus and a carrying capacity index that specifies the carrying capacity of the drilling fluid, determining being based on the measured parameters; evaluating hydraulic pressures in the borehole and in a drill bit based on the measured parameters; calculating a drilling specific energy based on the hole cleaning index and the evaluated hydraulic pressures; calculating carbon dioxide emissions of the drilling operation based on the drilling specific energy; and determining drilling parameters based on minimizing the drilling specific energy and calculated carbon dioxide emissions.

Abstract: A catching tool assembly, and method of use, for catching an electric submersible pump string or other equipment string in a well bore in the event of a tubing failure. The catching tool is self-orienting so that the tool can be set and retrieved by simply moving the mandrel of the tool up and down, without any need to rotate the equipment string or the mandrel.

Abstract: A plug for wellbore tubing includes: an internal portion; a first external portion which surrounds the internal portion; and a second external portion disposed axially adjacent to the first external portion, with respect to a central longitudinal axis of the plug. The second external portion expands to: engage an interior surface of the wellbore tubing in response to a trigger as the plug displaces downhole through the wellbore tubing; and open a passage to permit a fluid to progress to the first external portion. The first external portion expands to engage the wellbore tubing in response to the expansion of the second external portion and upon contact with the fluid. A related method includes providing such a plug, and displacing the plug downhole in the wellbore tubing.

Abstract: A wear-resistant annular seal assembly has a plurality of interlocking one-piece seal segments interleaved with a plurality of two-piece seal segments. The seal segments are made using wear-resistant rigid material such as steel, stainless steel or a composite material. In one embodiment the seal segments are coated with a fluoropolymer. A straddle packer includes a first and second spaced apart ones of the wear-resistant seal assemblies and a linear force generator for urging the first and second seal assemblies to a seal-set condition.

Abstract: A downhole plug (10) includes a mandrel (1) having a hollow structure, an annular sealing member (2) attached to an outer circumferential surface of the mandrel (1) and being deformable by exerted pressure, and an annular socket (3) attached, adjacent to the annular sealing member (2), onto the outer circumferential surface of the mandrel (1), downstream of where a pressure is exerted on the sealing member (2). The annular socket (3) is configured to include a socket-inner portion (31) which comes into contact with the outer circumferential surface of the mandrel (1), and a socket-outer portion (32) in an annular shape having an inner diameter equivalent to or larger than that of the socket-inner portion (31) and movably attached to the socket-inner portion (31). The socket-outer portion (32) includes a face facing the sealing member (2).

Abstract: A setting tool includes a housing having an initiator compartment to receive an initiator for initiating combustion of a combustible element, a combustion compartment to receive the combustible element, and a switch compartment to at least partially receive a switch circuit for activating the initiator, a piston configured to impart a setting force against the plug in response to combustion of the combustible element, and an interrupt flowpath configured to connect at least one of the combustion compartment and the initiator compartment with the switch compartment whereby combustion products that may be created in the initiator compartment or combustion compartment would be circulated from the at least one of the combustion compartment and the initiator compartment to the switch compartment to disconnect the switch circuit in response to the activation of the initiator charge.

Abstract: A packer assembly includes a packer mandrel and a packing element disposed about the packer mandrel. An upper recovery sleeve is disposed about the packer mandrel and extending between the packer mandrel and an upper end of the packing element, and a lower recovery sleeve is disposed about the packer mandrel and extending between the packer mandrel and a lower end of the packing element. An upper backup assembly is movably disposed about the upper recovery sleeve and adjacent to the upper end of the packing element. A lower backup assembly is movably disposed about the lower recovery sleeve. The lower backup assembly has a lower backup ring assembly configured to enclose an outer surface of the lower end of the packing element. A retrieval sleeve is selectively movable relative to the lower backup ring assembly and configured to at least partially retract the lower backup ring assembly.

Abstract: Apparatus and methods are provided relating to bottom hole assemblies (BHA) for the isolation and treatment of selected zones using an uphole and a downhole sealing element. The BHA also includes a location and shifting mechanism for locating, engaging and actuating features in a wellbore. The BHA provides for the selective location and actuation of downhole features such as flow valves, precise introduction of fluid, and real-time monitoring of downhole conditions. Methods of deploying a BHA and treating an area of interest using the BHA includes engaging sealing elements using hydraulic pressure.

Abstract: There is provided a bottomhole assembly that is deployable downhole within a wellbore via a conveyance system. The conveyance system includes a fluid conductor for effecting fluid communication between the surface and the bottomhole assembly. The bottomhole assembly includes an actuator tool and a shifting tool. In some embodiments, for example, the actuator tool is disposed for receiving transmission of a compressive force being applied to the conveyance system from the surface, and transmitting the compressive force for actuating the shifting tool. In some embodiments, for example, the actuator includes an anchoring tool configured for hydraulic actuation, via fluid pressure forces communicated by the fluid conductor of the conveyance system, for becoming retained relative to the wellbore string.

Abstract: A system for hanging tubing in a wellbore includes a tubular body, a plurality of lower slips mounted along the tubular body, a spring cone disposed around the tubular body and fixed to the plurality of lower slips, the spring cone comprising a lock ring having a ratchet profile, and a packer element disposed around the tubular body, below and adjacent the spring cone.

Abstract: The invention relates to a cementing tool for use in oil and gas well decommissioning operations, in particular so called perforate, wash and cement procedures. The tool (1) is designed for running in a well on drill string and for jetting cement through previously formed perforations in the casing (10) to fill the outer annulus (9) with cement. The tool (1) has a cylindrical wall (3) which is formed from steel (11) and elastomeric (5) elements, whereby it is expandable between a first diameter in which it may be run down the well and a second, larger diameter deployed during cementing operations.

Abstract: A frac plug with lower slips and a lower cone. In embodiments, a lower cone ramp angle is greater than or equal to a cone bevel angle and a slip inner cut angle. This geometry enables the fins of the cone to not interact with the lower slips, which may not break the lower slips as the lower slips move over the cone. Instead, the lower slips may break due to stresses caused by the tendency of the lower slips to expand as they lower slips interact with the ramp of the lower cone.

Abstract: A completion configuration and a method for an electrical submersible pump (ESP) are provided. An exemplary completion configuration includes a dual port packer, a tubing line mounted in a first port of the dual port packer, wherein the tubing line carries fluid from a reservoir to a surface, and a motor head mounted in a second port of the dual port packer, wherein the motor head couples to ESP power terminations that are disposed uphole of the dual port packer.

Abstract: Tools for sealing a tubing in a downhole environment. The tools feature top and bottom slip assemblies and a monolithic sealing element. The monolithic sealing element includes a portion that is disposed between the top and bottom slip assemblies as well as portions that encapsulate the slip assemblies. When the tool is actuated from a run-in configuration to a set configuration, the slips move toward each other squeezing the sealing element so that it forms a fluid-tight seal with the tubing. Teeth of the slip assemblies penetrate the portions of the sealing element disposed thereon and bite into the tubing.

Abstract: A downhole tool includes a slips assembly, a cone positioned at least partially within the slips assembly, the cone being configured to move axially relative to the slips assembly such that the cone presses the slips assembly radially outward and into engagement with a surrounding tubular in which the downhole tool is deployed, and a seal ring positioned around the cone, the seal ring being configured to be pressed radially outward by engagement with the cone and into engagement with the surrounding tubular.

Abstract: An intelligent maintenance and repair robot for small diameter and small flow oil and gas pipelines, including a frame, a speed control mechanism, a braking mechanism, an anchoring mechanism, and a sealing mechanism; the speed control mechanism is composed of a motor, rotor, etc; the braking mechanism is composed of a braking rubber cylinder and a first extrusion ring; the anchoring mechanism is composed of a rubber conical cylinder, slips, etc; and the sealing mechanism is composed of a sealing rubber cylinder and a second extrusion ring. The second extrusion ring is driven by a hydraulic rod to press the sealing rubber cylinder, causing it to expand and block the pipe wall to achieve sealing. The intelligent maintenance and repair robot inside the pipeline has the characteristics of good speed control response, wide speed range, strong ability to pass bends, stable braking process, and high sealing reliability.

Abstract: A technique facilitates setting of a liner hanger in a casing or within other tubular structures via a setting tool. The liner hanger may be constructed with an expandable hanger body between fixed ends. The expandable hanger body is formed from a material, e.g. metal, sufficiently ductile to undergo plastic deformation as it is expanded into engagement with a surrounding casing or other tubing. The expandable hanger body is expanded via fluid delivered under high pressure by the setting tool. The setting tool has a pressure booster to achieve the desired high pressure. The pressure booster may be in the form of a multi-diameter piston constructed to establish the desired high pressure during a single stroke.

Abstract: A roll-out apparatus, method, and system is disclosed for deployment in a subterranean well at a setting location. The roll-out apparatus, method, and system includes a load ring and an energizing ring. The load ring may include an outer surface having an outer circumference and a slot extending through the entire wall thickness that follows a circuitous path from a front face to a back face of the load ring. The energizing ring includes an outer surface configured to contact an inner surface of the load ring to enlarge the outer circumference of the load ring in a radial direction. This causes the outer surface of the load ring to seal to an inner surface of the subterranean well at the setting location.

Abstract: An object includes a housing, a cone received in the housing, a piston body attached to the cone, a gas evolution compound disposed in the object, an interface between the housing and the piston body, an interface feed fluidly connecting the gas evolution compound with the interface, and a trigger to evolve gas from the compound at a selected circumstance. A method for moving a tool including running an object into a borehole, counting features in the borehole using a sensor in the object, evolving gas from the gas evolution compound at a selected count, pressurizing the interface with the evolved gas, driving the piston body, and moving a shoulder member toward a larger diameter end of the cone. A borehole system including a borehole in a subsurface formation, a string disposed in the borehole, and an object disposed within or as a part of the string.

Abstract: A method of activating an anchor with an anchor activation system including a housing having an outer surface and an inner surface defining an internal chamber includes introducing a first activation force to a trigger comprising a piston arranged in a piston cylinder extending radially through the outer surface to the internal chamber, sensing that the first activation force did not activate the anchor, and introducing a second activation force to the trigger without reconfiguring the anchor activation system to break a shear element retaining the piston with the first activation to release the piston and activate the anchor.

Abstract: Downhole apparatus is provided for location in a fluid-filled bore, such as a well bore. The apparatus comprises a tubular body comprising a plurality of cylindrical chambers for containing a compressible substance, and pistons mounted in the chambers. A lock arrangement is provided and has a locking configuration for retaining the pistons in the chambers and an unlocked configuration in which bore fluid pressure may translate the pistons through the chambers.

Abstract: A threaded joint (200) provides for metal-to-metal sealing on the ends of concentrically positioned inner and outer tubes when joining the concentric tubes to a single tube (107). A threaded coupling (105) secures the inner and outer tubes and joins both tubes to a single tube. The threaded connection leverages metal-to-metal sealing on the ends of each tube. The inner tube (102) may differ in length from the outer tube (101) and contains a single thread (211) at its for receiving the threaded coupling. Threading the coupling onto the inner tube establishes four flexing metal-to-metal seals (209A-D) between the threaded joint components. The inner and outer tubes maintain contact at the internal shoulder (104) as a result of preloading. If the tubes are of varying thicknesses, a nut (407) is placed between the internal shoulder and the threaded coupling to preserve contact between the tubes at the internal shoulder.

Abstract: A frac plug system for use in a wellbore, including a frac plug; and a plug member configured to set the frac plug in the wellbore and to control a flow of fluid through the frac plug once the frac plug is set in the wellbore. A method of controlling a flow of fluid within a wellbore, including conveying a frac plug system in the wellbore, the frac plug system including a frac plug and a plug member; setting the frac plug in the wellbore using the plug member; and control the flow of fluid through the frac plug using the plug member once the frac plug is set in the wellbore.

Abstract: An integral permanent bridge plug assembly for a wellbore. The integral permanent bridge plug assembly includes a permanent bridge plug mounted to a cylindrical body, a setting sleeve, a bottom connection, an engagement assembly mounted to an outer diameter of the cylindrical body that is selectively extendible between a recessed position and an extended position, and a scraper including a plurality of blades and configured to engage the wellbore tubular in which the permanent bridge plug is to be set. The wellbore has a wellbore tubular having an internal diameter surface. When deployed, the integral permanent bridge plug assembly is configured to both scrape the internal diameter surface of the wellbore tubular and set an isolation barrier in a single trip into the wellbore.

Abstract: A barrier plug assembly for sealing a subterranean wellbore is located inside a tubing and can comprise a frangible barrier element stacked on a carrier ring, a locking sleeve located above the carrier ring and located in a closed fluid chamber, a valve located on the closed fluid chamber and in pressure communication with the tubing, a retaining device configured for locking the a carrier ring in place, a crushing element located a distance below the frangible barrier element and configured for crushing the frangible barrier element. The valve can be configured for allowing or preventing fluid communication in between the tubing and the fluid chamber.

Abstract: A downhole tool suitable for use in a wellbore, the tool having a cone mandrel having a dual-cone outer surface. The downhole tool includes a carrier ring disposed around one end of the cone mandrel, and a seal element disposed around the carrier ring. There is a slip disposed around or proximate to an other end of the cone mandrel.

Abstract: An anchor-packer assembly includes a packer having a slips assembly and a seal. The slips assembly and the seal are radially expandable so as to engage a surrounding tubular. The assembly also includes an anchor coupled to the packer. The anchor includes a slips assembly and is configured to transmit a first torque and a first axial force to the packer, to set the packer. The anchor is configured to be actuated from an anchor running position in which the slips assembly thereof is retracted, to an anchor set position, in which the slips assembly thereof is expanded radially outward, in response to a second torque and a second axial force, and the anchor in the anchor set position is configured to prevent an uphole-directed force on the packer from releasing the slips assembly of the packer from engagement with the surrounding tubular.

Abstract: A method and apparatus for using a tandem sub to connect one or more perforating gun assemblies, having a rotational bearing mechanism lining the inner diameter in both ends to allow the charge tube assembly to rotate within the gun body.

Abstract: A frac plug with lower slips and a lower cone. In embodiments, a lower cone ramp angle is greater than or equal to a cone bevel angle and a slip inner cut angle. This geometry enables the fins of the cone to not interact with the lower slips, which may not break the lower slips as the lower slips move over the cone. Instead, the lower slips may break due to stresses caused by the tendency of the lower slips to expand as they lower slips interact with the ramp of the lower cone.

Abstract: A degradable plug device for a pipe has an outer plug body and an inner plug for preventing fluid flow through the pipe until the inner plug has been removed from the outer plug body. The outer plug body and the inner plug are of a degradable material. The inner plug has a chamber with at least one port to the exterior of the inner plug. The exposed surfaces of the degradable plug have a protective layer thereon. The inner plug is disposable in at least a first position, in which the inner plug prevents the fluid flow through the pipe. The inner plug is adapted to undergo, in use, a degradation initiation operation such that fluid is able to enter the chamber via the at least one port to initiate corrosion or dissolution of the inner plug from inside the chamber.

Abstract: The present invention is to a packer plug that can be tripped into a particular location in a well bore and set using slips or expansion rings and packer elements. The plug presents little flow resistance because of its wide inner diameter throat through the mandrel. A ball seat at an upper end allows for the sealing of the interior passage. The ball can be flowed upward or dissolved to remove the seal and allow flow through the plug.

Abstract: Provided, in one aspect, is a downhole tool. The downhole tool, according to this aspect, may include a helically wound structure having first and second ends, as well as a first member coupled to the first end and a second member coupled to the second end. In accordance with this aspect, the first and second members are rotatable or linearly translatable with respect to each other to move the helically wound structure between a radially retracted state having at least one coils and a radially deployed state.

Abstract: A downhole tool having a mandrel, and a bottom slip disposed around the mandrel. The bottom slip includes a circular body having a one-piece configuration characterized by a plurality of slip segments by at least partial material connectivity therearound. The bottom slip is made of a filament wound composite material, which means the bottom slip has a plurality of layers joined by respective interface layers. An outer slip surface of at least one of the plurality of slip segments is defined in cross-section by a plane P that intersects a longitudinal axis of the downhole tool at an angle a1 when the bottom slip is in an unset position.

Abstract: A metal-based dissolvable ball seat comprises a mandrel, a tail base, a sliding body, a slip and a sealing ring. The mandrel can be disengaged from the tail base under predefined shearing force. The sliding body is disposed to sleeve the mandrel and located above the tail base; the slip is disposed outside the mandrel and slidably abutted against the tail base and the sliding body respectively; the slip and the sliding body are slidably abutted against each other through a first conical surface structure, and/or the slip and the tail base are slidably abutted against each other through a second conical surface structure; the sealing ring is movable along axial direction of the mandrel together with the slip; when the sliding body and the tail base are approaching each other, the slip opens up and the sealing ring expands outward. A setting system and a setting method are provided.

Abstract: A tool brake is provided for use in horizontal wells that is positionable between a setting tool and a setting sleeve in combination with a tool string. Upon activation of the setting tool to set a bridge plug in a well, the normal action of the setting tool causes activation of the tool brake that extends one or more arms from the tool brake to exert pressure against the wellbore casing of the well. The tool brake prevents reverse slippage caused by gravity's pull of the tool string in a horizontal well permitting accurate placement of downhole tools such as perforating guns. Moreover, inadvertent cutting of a cable that retrieves the downhole tools can be prevented such as due to slippage of downhole tools over-lapping the cable before perforating guns are detonated.

Abstract: Plugs for use in hydrocarbon recovery operations having lower and upper anchor slip assemblies with individual anchors, upper and lower elements, a shoe and tubular mandrel.

Abstract: A variety of systems and methods are disclosed for cleaning a wellbore ahead of a well tool. The well tool is deployed on a tubular conveyance to a depth into a well. An interior surface of the well is wiped ahead of the well tool to dislodge debris from the interior surface of the well as the tubular conveyance advances downhole. The debris is filtered ahead of the well tool as the tubular conveyance advances downhole to keep the filtered debris away from the well tool. The well tool may then be used to perform a tool function when the tubular conveyance has reached the depth, without being affected by the filtered debris.

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

Abstract: A packer for wells can include a body having a tubular shape, a sealing element having an upward end and a downward end and disposed around the body. The packer also includes a first prop upward of the sealing element, and a second prop downward of the sealing element. The first prop is configured to wedge under the upward end of the sealing element and the second prop is configured to wedge under the downward end of the sealing element to push the sealing element outward at both the upward end and the downward end.

Abstract: Provided, in one aspect, is a ball seat release apparatus. The ball seat release apparatus, according to this embodiment, includes a shear sleeve, and a ball seat body located at least partially within the shear sleeve, a shear feature releasably coupling the ball seat body to the shear sleeve. The ball seat release apparatus according to this aspect further includes a ball seat slidingly engaged within the ball seat body, the ball seat configured to move from a first linear position to a second linear position, and further wherein a locking dog releasably couples the ball seat with the ball seat body.

Abstract: A slip engagable with a slip ring including a head section having an arc length, a tail section having the same arc length, an intermediate section having an arc length shorter than either the head section and the tail section connecting the head section to the tail section, and a lateral wing depending from the intermediate section.

Abstract: A wear-resistant annular seal assembly has a plurality of interlocking one-piece seal segments interleaved with a plurality of two-piece seal segments. The seal segments are made using wear-resistant rigid material such as stainless steel. In one embodiment the seal segments are coated with a fluoropolymer. A straddle packer includes a first and second spaced apart ones of the wear-resistant seal assemblies and a linear force generator for urging the first and second seal assemblies to a seal-set condition.

Abstract: The present invention relates to a downhole expandable metal tubular having an axial extension, to be expanded in a well downhole to abut against an inner face of a casing or a borehole, comprising a first section having a first outer diameter, two circumferential projections having a second outer diameter which is larger than the first outer diameter, a second section arranged between the two projections, each projection having an inclined face tapering from the second outer diameter towards the second section, wherein the second section has a third outer diameter which is smaller than the first outer diameter in an unexpanded condition, and a sealing element is arranged between the projections opposite the second section, so that during expansion the second section bulges more radially outwards than the first section, forcing the sealing element radially outwards. Furthermore, the present invention relates to an annular barrier, a downhole completion and a sealing expansion method.

Abstract: A 3D printed barrel slip that includes a radially expandable barrel slip body that is movable from an unexpanded position to an expanded position; wherein the body has an outer surface that, when in the unexpanded position, defines a first radius; wherein the first radius is associated with a first curvature; and wherein, when in the expanded position, portion(s) of the outer surface has a second curvature that is less than the first radius. The body is an integrally formed single-component body that defines an external surface; and an internal chamber isolated from the external surface. The internal chambers affect the strength of portions of the body to control the timing of deployment of the barrel slip.