Abstract: A production sleeve assembly for use downhole comprises a fluid pathway configured to provide fluid communication between an exterior of a wellbore tubular and an interior of the wellbore tubular, a flow restriction disposed in the fluid pathway, and a valve disposed in series with the flow restriction in the fluid pathway. The valve comprises: a rupture disk and a plug releasably engaged in the fluid pathway in series with the rupture disk. The valve is configured to allow production from the exterior of the wellbore tubular to the interior of the wellbore tubular through the chamber without producing past the plug once the rupture disk is actuated.

Abstract: Expandable apparatus include a triggering element comprising an at least partially corrodible composite material. Methods are used to trigger expandable apparatus using such a triggering element and to form such triggering elements for use with expandable apparatus.

Abstract: A wellbore isolation device comprising: a nanolaminate, wherein the nanolaminate comprises two or more layers of a first material and two or more layers of a second material, wherein the first material and the second material form a galvanic couple, and wherein the first material is the anode and the second material is the cathode of the galvanic couple. A method of removing the wellbore isolation device comprises: contacting or allowing the wellbore isolation device to come in contact with an electrolyte; and causing or allowing at least a portion of the two or more layers of the first material to dissolve.

Abstract: Apparatus and methods for penetrating a downhole target within a wellbore include providing a body with a longitudinal axis, a first end, and a second end into a wellbore, the body having a nozzle at the first end. The nozzle is adapted to project a medium, such as molten thermite, in a direction generally parallel to the longitudinal axis, such as in a downhole direction. An initiation source is usable to consume a fuel load associated with the body to cause projection of the medium in a direction generally parallel to the axis of the wellbore, to affect an obstruction in the wellbore. A series of such apparatus can be used in succession, such that the actuation of each preceding apparatus enhances the effect of each subsequent apparatus on the obstruction.

Abstract: A disintegrable powder compact includes a matrix; a plurality of dispersed particles including a particle core material dispersed in the matrix; a ferrous alloy including carbon disposed in one of the matrix or particle core material; and a secondary element disposed in the other of the matrix or particle core material, the matrix and the plurality of dispersed particles having different standard electrode potentials. A process for preparing a disintegrable powder compact includes combining a primary particle including a ferrous alloy that includes carbon and a secondary particle to form a composition; compacting the composition to form a preform; and sintering the preform by forming a matrix, wherein the dispersed particles are dispersed in the matrix, the disintegrable powder compact is configured to disintegrate in response to contact with a disintegration fluid, and the primary particle and secondary particle have different standard electrode potentials.

Abstract: A well tool can include a swellable material, and a degradable material which supports the swellable material, but which degrades in response to contact with a selected fluid in a well. A packer for use in a subterranean well can include a swellable material, and a degradable material which supports the swellable material. A method of unsetting a packer in a subterranean well can include the steps of, after the packer has been set in the well, exposing a degradable material of the packer to a selected fluid, thereby degrading the degradable material, and a seal element of the packer being unsupported by the degradable material in response to the exposing step.

Abstract: A system for pressure testing the joints and walls of a production pipe includes a fluid system component that can be disposed at a first end of the production pipe so as to seal off the first end of the production pipe. The fluid system component prevents the flow of fluid out of the first end of the production pipe when the pressure within the production pipe is below a predetermined level. The fluid system component includes a sacrificial element that is adapted for preferential failure when the pressure within the production pipe exceeds the predetermined level. Upon failure of the sacrificial element, fluid is able to flow out of the production pipe through the fluid system component. The system may also include a test plug that prevents the activation of a drain component in the production pipe during the pressure testing of the production pipe.

Abstract: A tool circulates drilling fluid through and rotates a pipe string while making up or breaking out a stand of pipe. The tool includes a tubular member defining a central bore having an axis, wherein the tubular member comprises an upper tubular member and a lower tubular member, and wherein the upper tubular member and the lower tubular member are configured to alternately rotate independently and in unison. The tool also includes a central bore valve coupled to the upper member, and at least one radial valve coupled to the upper tubular member axially below the central bore valve.

Abstract: A down hole pressure isolation tool is placed in a pipe string and includes a pair of pressure discs having one side that is highly resistant to applied pressure and one side that ruptures when much lower pressures are applied to it. The weak sides of the pressure discs face each other. Rather than rupturing the discs by dropping a go-devil into the well, in some embodiments, a first of the discs is ruptured or broken by the application of fluid pressure from the well head or surface. Formation pressure is then used, in different ways according to the different embodiments, to rupture the remaining disc. In another embodiment, a gas generating assembly located between the discs is actuated to produce enough pressure to rupture the discs.

Abstract: A runnable member catcher includes a body fixedly attachable within a tubular, the body defines inner radial dimensions that are smaller than portions of the body that are fixedly attached the body to the tubular, the body is configured to be structurally weakened upon exposure to an activation fluid to facilitate removal of the body.

Abstract: A wellbore isolation device comprises: a first material and a second material, wherein the first material and the second material form a galvanic couple and wherein the first material is the anode and the second material is the cathode of the galvanic couple, and wherein the second material is a fiber or a plurality of fibers. A method of removing the wellbore isolation device comprises: contacting or allowing the wellbore isolation device to come in contact with an electrolyte; and causing or allowing at least a portion of the first material to dissolve.

Abstract: Slip elements for a downhole tool include an inner body portion that is substantially formed of a material that is degradable by dissolution in response to a dissolving fluid and a hardened, resilient, radially outer contact portion. The inner body portion may be formed of magnesium, aluminum or iron based powder.

Abstract: Disclosed herein is an apparatus for use downhole comprising an expandable component; a support member that has a selected corrosion rate; wherein the support member is disposed on the expandable component; where the support member comprises a plurality of particles fused together; the particles comprising a core comprising a first metal; and a first layer disposed upon the core; the first layer comprising a second metal; the first metal having a different corrosion potential from the second metal; the first layer comprising a third metal having a different corrosion potential from the first metal.

Abstract: A rupture disc assembly and a float tool incorporating the rupture disc assembly is disclosed. The rupture disc assembly may include a rupture disc assembly comprising a rupture disc, an upper tubular portion and a lower tubular portion, and a securing mechanism for holding the rupture disc between the upper and lower tubular portions. A float tool for creating a buoyant chamber in a casing string may include the rupture disc assembly and a sealing device for sealing the lower end of the casing string, the buoyant, sealed chamber may be created there between. In operation, applied fluid pressure causes the rupture disc to move downward. The rupture disc may be shattered by contact with a surface on the lower tubular portion. Full casing internal diameter may be restored in the region where the rupture disc formerly sealed the casing.

Abstract: Methods and apparatus are presented for a “disappearing” perforator gun assembly. In a preferred method of perforating a well casing, inserted into the well casing is a tubing conveyed perforator having an outer tubular made from a metallic glass alloy having high strength and low impact resistance. An inner structure is positioned within the outer tubular and holds one or more explosive charges. Upon detonating the explosive charges, the outer tubular is fragmented. The inner structure is preferably also substantially destroyed upon detonation of the one or more explosive charges. For example, the inner structure can be made from a combustible material, corrodible, dissolvable, etc., material. A disintegration-enhancing material is optionally positioned between the outer tubular and the inner structure. Additional embodiments are presented having gun housings which dematerialize upon detonation of the charges.

Abstract: Earth-boring casing shoes include a crown configured for at least one of drilling and reaming a wellbore when the crown is attached to a section of casing and the casing is advanced into a wellbore. The crown includes a body comprising a corrodible composite material, and at least one cutting structure carried on the body. The casing shoes further include a connection structure configured for attachment to a section of casing. Methods are used to form such casing shoes, and such casing shoes are used to install casing within wellbores.

Abstract: A method for reducing the friction forces between tubulars, for example coiled tubing in casing, is disclosed. The method includes mixing a selected suspending agent and surfactant and polymer particles in oil, then adding the mixture to water and pumping the mixture down the tubing. The mixture is particularly useful in coiled tubular drilling inside casing of an oil or gas well. The formulation has also been found to reduce corrosion on metal surfaces.

Abstract: An apparatus that is usable with a well includes a first component and a second component. The first component is adapted to dissolve at a first rate, and the second component is adapted to contact the first component to perform a downhole operation and dissolve at a second rate that is different from the first rate.

Abstract: A selective downhole tool including a tubular having a longitudinal bore enabling passage of fluids there through. Having a valve opening in a wall of the tubular. An expandable ball seat selectively movable between a first size sized to trap a ball to block flow through the tubular. A larger second size sized to release the ball through the tubular. A valve cover longitudinally movable within the tubular, the valve cover including a dissolvable insert. Also included is a method of operating a downhole tool.

Abstract: At least a portion of a wellbore isolation device consists essentially of: a metal alloy, wherein the metal alloy: (A) comprises magnesium at a concentration of at least 50% by volume of the metal alloy; and (B) at least partially dissolves in the presence of an electrolyte. A method of removing the wellbore isolation device comprises: contacting or allowing the wellbore isolation device to come in contact with an electrolyte; and allowing at least a portion of the metal alloy to dissolve.

Abstract: A frac head is provided with a sacrificial wash ring. The sacrificial wash ring is located above a mixing chamber of the frac head. The sacrificial wash ring protects the frac head body from erosion caused by abrasive frac fluids pumped through the frac head.

Abstract: Methods and apparatus are presented for removing a degradable barrier plug positioned in a downhole axial passageway. The degradable plug is initially isolated from fluid by at least one solid, non-degradable cover. A first electronic rupture disc assembly is actuated to open a passageway to the degradable plug. A second electronic rupture disc assembly is actuated to allow a fluid, such as water from a supply chamber, to flow into contact with the plug. The plug is substantially degraded, although the cover remains. A third electronic rupture disc assembly is actuated to bend and then cover the remaining solid cover, thereby opening the axial passageway and protecting later-introduced tools.

Abstract: A cutting element includes a front face and leading face extending between a first and second sides. A leading cutting edge is located at an intersection of the front face and the leading face, and an undulating back-up cutting edge is formed in the front face and extends from the first side to the second side, and defines a leading surface and a trailing surface. A method includes cutting with a tool having a blade coupled to a tool body, and a cutting element coupled to a forward surface of the blade. The cutting element has a leading cutting edge formed at an intersection of front and leading faces, and an undulating back-up cutting edge formed in the front face and defining leading and trailing surfaces. The leading cutting edge of the cutting element contacts and cuts a work piece.

Abstract: A downhole tool for use in completing a well includes a plug body selectively securable to a wellbore at a desired elevation and having a flowbore. A non-dissolvable flow restrictor is operably disposed in the flowbore and operates to restrict fluid flow through the flowbore, and a time-dissolvable retainer or spacer is operably coupled to the flow restrictor to retain the flow restrictor in a first position within the flowbore. The retainer is dissolvable within a predetermined passage of time to release the flow restrictor to move between the first position and a second position within the flowbore to control the flow of fluid through the downhole tool.

Abstract: Disclosed are shearable control line connectors. One control line connector includes an upper coupling element, a lower coupling element communicably coupled to the upper coupling element, and a connector cap securing the upper coupling element to the lower coupling element and being configured to shear upon being subjected to an axial force, thereby effectively separating the upper coupling element from the lower coupling element.

Abstract: A method of making a composite downhole article is disclosed. The method include forming at least one removable core member comprising a first metallic material that is removable in a wellbore fluid at a first removal rate; and disposing at least one outer member on the core member, the outer member comprising a second material that is removable in the wellbore fluid at a second removal rate, wherein the removable core member has a composition gradient or a density gradient, or a combination thereof, and wherein the first removal rate is substantially greater than the second removal rate. A method of using a composite downhole article is also disclosed. The method includes forming a composite downhole article as described above; using the article to perform a first wellbore operation; exposing the article to the wellbore fluid; and selectively removing the second removable member.

Abstract: A dissolvable tool includes a body having at least a portion configured to dissolve in a fluid, and a barrier connected to the body. The barrier is configured to slidably fluidically seal to a structure that the body and the barrier are movable within to maintain a volume of the fluid between the barrier and the body while the barrier and the body are moved through the structure.

Abstract: A convertible downhole device comprises at least one sacrificial material to provide two or more configurations so that two or more different operations or functions are performable by the downhole device, one in which the sacrificial material is fully intact and another in which the sacrificial material is at least partially removed or disappeared. The sacrificial material may be removable through any suitable method or device, such as by contacting with a fluid, by temperature, by pressure, or by combustion, ignition, or activation of a fusible or energetic material, or crushing or breaking up of a frangible material. Upon removal of the sacrificial material, the downhole device has at least one additional configuration so that at least a second operation can be performed by the downhole device.

Abstract: A wellbore isolation device comprising: a first material, wherein the first material: (A) is a metal or a metal alloy; and (B) partially dissolves when an electrically conductive path exists between the first material and a second material and at least a portion of the first and second materials are in contact with an electrolyte; and an electrolytic compound, wherein the electrolytic compound dissolves in a fluid located within the wellbore to form free ions that are electrically conductive. A method of removing the wellbore isolation device comprises: placing the wellbore isolation device into the wellbore; and allowing at least a portion of the first material to dissolve.

Abstract: A method for making a tripping ball comprising configuring two or more parts to collectively make up a portion of a tripping ball; and assembling the two or more parts by adhering the two or more parts together with an adherent dissolvable material to form the tripping ball, the adherent dissolvable material operatively arranged to dissolve for enabling the two or more parts to separate from each other. A method of performing a pressure operation with a tripping ball is also included.

Abstract: A method of and apparatus for deploying a bow spring centralizer installed on an expandable casing string and restrained in the collapsed configuration by restraining bands that rupture, upon expansion of the casing string, to deploy the bow spring centralizer and provide stand-off between the expanded casing string and the wall of the borehole. In one embodiment, the bow spring centralizer comprises landings for receiving and retaining the bands for restraining the centralizer in the collapsed configuration. In another embodiment, the bands are secured to the centralizer to prevent separation of the ruptured bands from the deployed centralizer.

Abstract: Slip elements for a bridge plug include an inner body portion that is substantially formed of a material that is degradable by dissolution in response to a dissolving fluid and a hardened, resilient, radially outer contact portion. The outer contact portion includes a plurality of openings that function as stress risers. The inner body portion may be formed of magnesium powder.

Abstract: High power laser systems, high power laser tools, and methods of using these tools and systems for opening up damaged wells and for cutting, sectioning and removing structures objects, and materials, and in particular, for doing so in difficult to access locations and environments, such as offshore, underwater, or in hazardous environments, such as nuclear and chemical facilities. And, high power laser systems, high power laser tools, and methods of using these systems and tools for providing rock-to-rock plugs for decommissioning of wells.

Abstract: A flow control system for use with a subterranean well can include a flow chamber through which a fluid composition flows, and a closure device which is biased toward a closed position in which the closure device prevents flow through the flow chamber. The closure device can be displaced to the closed position in response to an increase in a ratio of undesired fluid to desired fluid in the fluid composition. A structure can prevent the closure device from being displaced to the closed position. The fluid composition can flow through the structure to an outlet of the flow chamber.

Abstract: A tool having a high-molecular weight Polyglycolides such as polyglycolic acid (PGA) may be used in downhole hydrocarbon recovery applications. Advantageously, PGA tools do not need to be drilled out but will naturally break down into environmentally-compatible natural compounds.

Abstract: A down hole pressure isolation tool is placed in a pipe string and includes a pair of pressure discs having one side that is highly resistant to applied pressure and one side that ruptures when much lower pressures are applied to it. The weak sides of the pressure discs face each other. Rather than rupturing the discs by dropping a go-devil into the well, a first of the discs is ruptured or broken by the application of fluid pressure from the well head or surface. Formation pressure is then used, in different ways according to the different embodiments, to rupture the remaining disc.

Abstract: A convertible downhole device comprises at least one sacrificial material to provide two or more configurations so that two or more different operations or functions are performable by the downhole device, one in which the sacrificial material is fully intact and another in which the sacrificial material is at least partially removed or disappeared. The sacrificial material may be removable through any suitable method or device, such as by contacting with a fluid, by temperature, by pressure, or by combustion, ignition, or activation of a fusible or energetic material, or crushing or breaking up of a frangible material. Upon removal of the sacrificial material, the downhole device has at least one additional configuration so that at least a second operation can be performed by the downhole device.

Abstract: A plug is disposable in a well bore to block fluid from passing through the wellbore. The plug includes a body formed from water soluble glass. The body is dissolvable in water. A method of utilizing water soluble glass includes employing an element formed of the water soluble glass, performing a first function in the system when the element is present, dissolving the element in the presence of water, and performing a second function in the system different than the first function.

Abstract: A circulating sub apparatus including a substantially tubular outer body member having a throughbore formed therein and a substantially tubular inner body member. The outer body member having at least one hole formed therein and a displacement mechanism for producing movement of the inner body member relative to the outer body member such that the inner body member is moveable between an open configuration and an obturated configuration. The inner body member includes a seat member adapted to catch a dropped object, the seat member is located upstream of the hole(s) of the outer body member in both the open and obturated configurations, and wherein the seat member is adapted to permit at least a proportion of fluid to flow past the dropped object when it is seated thereon.

Abstract: A downhole device, having at least a portion polyurethane therein, may be softened by contacting the downhole device with a fluid mixture. The fluid mixture may have at least two components that may be or include, but are not limited to ethylene glycol monobutyl ether (EGMBE), propylene carbonate (PC), methanol, ethylene carbonate, dimethyl ether, diethyl ether, and combinations thereof. Upon contact with the fluid mixture, the downhole device may become softened for subsequent removal and/or retrieval of the downhole device.

Abstract: A downhole flow inhibition tool includes at least a first component and a mating component at least a portion of one of the first component and the mating component is dissolvable in a target environment to reduce flow inhibition upon dissolution of the at least a portion.

Abstract: Downhole tools for use in oil and gas production which degrade into non-toxic materials, a method of making them and methods of using them. A frac ball and a bridge plug comprised of polyglycolic acid which can be used in fracking a well and then left in the well bore to predictably, quickly, and safely disintegrate into environmentally friendly products without needing to be milled out or retrieved.

Abstract: A method of making a composite downhole article is disclosed. The method include forming at least one corrodible core member comprising a first material that is corrodible in a wellbore fluid at a first corrosion rate; and disposing at least one outer member on the core member, the outer member comprising a second material that is corrodible in the wellbore fluid at a second corrosion rate, wherein the corrodible core member has a composition gradient or a density gradient, or a combination thereof, and wherein the first corrosion rate is substantially greater than the second corrosion rate. A method of using a composite downhole article is also disclosed. The method includes forming a composite downhole article as described above; using the article to perform a first wellbore operation; exposing the article to the wellbore fluid; and selectively corroding the second corrodible member.

Abstract: A system for setting and retrieving a tool including a tubular having a first profile and a tool having a second profile, the first and second profiles complementarily formed and engagable together for enabling the tool to be located in a borehole with respect to the tubular, the first profile or the second profile at least partially formed from a degradable material, the degradable material degradable upon exposure to a downhole fluid.

Abstract: A system including a first component, a second component disposed radially adjacent to the first component, and a centralizer disposed between the first component and the second component for at least partially filling a radial clearance between the first component and the second component. The centralizer is formed at least partially from a disintegrable material responsive to a selected fluid. A method of completing a borehole is also included.

Abstract: A flapper valve preferably used in injection application in deep subterranean locations has an actuating sleeve with a seat to accept an object. A j-slot connects the actuation sleeve movement to the housing so that with an object on the seat and an applied pressure cycle the sleeve moves the flapper to the open position. The plug is dissolved and the injection begins. The plug can have an opening so as to allow continuous injection flow as the flapper is operated. Closing the flapper involves a second object on the same seat and a pressure cycle so that a spring can push the sleeve away from the flapper to allow a torsion spring on the flapper to close it.

Abstract: A wellbore isolation device comprises: at least a first material, wherein the first material: (A) is a metal or a metal alloy; and (B) is capable of at least partially dissolving when an electrically conductive path exists between the first material and a second material and at least a portion of the first and second materials are in contact with an electrolyte, wherein the second material: (i) is a metal or metal alloy; and (ii) has a greater anodic index than the first material. A method of removing the wellbore isolation device comprises: contacting or allowing the wellbore isolation device to come in contact with an electrolyte; and allowing at least a portion of the first material to dissolve.

Abstract: A process and an apparatus for use in fluid fracturing of a well and the like is provided, the apparatus being a pumpable seat assembly for temporarily sealing a well casing comprising a generally cylindrical tube having an outer diameter and an inner diameter; a upper slip assembly and a lower slip assembly mounted on such cylindrical tube and adapted to selectively engage the well casing to anchor the pumpable seat assembly; an elastomeric packing element mounted on said cylindrical tube between the upper slip assembly and the lower slip assembly; and a dissolvable member positioned within the generally cylindrical tube for temporarily restricting a flow of fluids to the portion of the wellbore located below the pumpable seat assembly.

Abstract: Methods and washing tools are described for combined cleaning of an annulus in a well across a longitudinal section (L1) of the well, and subsequent plugging of the longitudinal section (L1).

Abstract: An isolation element includes a body having at least one sealing surface, an internal cavity within the body, and a chemical agent disposed within the internal cavity. The chemical agent is configured to substantially increase a rate of degradation of the body.