Abstract: The main door for the control of the access opening to a compartment, particularly a garage compartment, comprises: a fixed portion associable with the access opening of a compartment; a mobile portion including a leaf associated in a mobile way with the fixed portion; at least a pulley on which winds up a cable connected to the leaf and to a counterweight; an operating shaft of the pulley mounted on the fixed portion; a winding-unwinding device having a flexible element which can be wound and unwound which is associated with the top of the leaf; an electric motor mounted on the fixed portion and suitable for placing a driving shaft in rotation; and a transmission and distribution having a first electromagnetic clutch to transmit motion from the driving shaft to the operating shaft and a second electromagnetic clutch to transmit motion from the driving shaft to the winding-unwinding device.

Abstract: A transmission device applied to a pivot shaft mechanism provides a security system and is easy to assemble. The transmission device includes at least one rotary shaft, a drive section movable with the rotation of the rotary shaft, a driver (transversely) reciprocally movable and a turning unit having a first end connected with the driver and a second end assembled with a carrier body. The driver includes an arm section provided with an elastic body and a hand section connected with the arm section. When the driver is transversely moved, the turning unit is swung, whereby the second end of the turning unit drives the carrier body for lifting or lowering a substrate body or a frame in accordance with the operation mode of an electronic apparatus.

Abstract: A combination doorbumper and doorstopper includes a mounting plate, spindle, bumper, toggle bolt, and toggle bolt anchor. The doorbumper is installed on a wall so that a doorknob or door handle will engage the bumper when the door is fully opened. The spindle is positioned between the mounting plate and the bumper, and includes a narrow neck region. The door can be held in an opened position by placing a loop end of a flexible cord over the doorknob or handle on the opposite side of the door from the doorbumper, and stretching the cord so that a hook at the opposite end of the cord can be placed over the neck of the spindle. The doorbumper together with the flexible cord acts as a doorstopper to hold the door open.

Abstract: A window frame has a sash and a panel that is disposed parallel to the sash, both of which are slidably disposed in the frame. A receiver is fixed at a first end of the frame. When the sash is in a first position, the sash is disposed within the receiver. When the sash is in a second position, the sash is disposed outside the receiver. A motor is fixed relative to the frame with a drive system connecting the motor to the sash and/or the panel. A control input is connected to the motor and is configured to receive a signal from a controller, a sensor, and/or a building management system.

Abstract: A device for monitoring a machine movement of a movable constructional element includes a detecting device and a control device. The detection device comprises at least one transmission unit which transmits a signal, and a reception unit which receives the signal. The control device comprises an evaluation unit which evaluates the signal received at the reception unit. The control device allows the machine movement upon a receipt of the signal at the reception unit, and to output a first triggering pulse to stop the machine movement in an absence of the signal at the reception unit. The evaluation unit comprises a first threshold value measuring unit to detect a signal strength of the signal received at the reception unit and which, upon detection that a predetermined threshold value of a signal strength is fallen short of, outputs a second triggering pulse to stop the machine movement.

Abstract: Automatic Kitchen Cabinet openers may frequently include two types of mechanisms. One type of mechanism is designed for a swinging door, such as a cupboard door. Another type is designed for sliding drawers. For a swinging door mechanism, a rotational motion is generated by a bi-directional servo motor to open or close, or open and close, the door. On a sliding mechanism, rotational motion of a geared motor may be converted to translational motion to slide the drawer in or out. These motors are controlled by a microcontroller as one system or individual unit with IR motion sensor integration or remotely via Wi-Fi or Bluetooth or voice control. In some embodiments the mechanisms may be operated by 6V or 12V DC battery adapter.

Abstract: The present invention provides a fireproof doorframe having a water curtain for a shelter space, which is capable of saving lives by being installed in a bathroom provided with water so as to prevent flames and poisonous gases from entering the bathroom in the case of a fire, comprising: a first end cover having a side cover part covering the end of the side of a provisional doorframe and an upper side cover part covering the upper side of the provisional doorframe; a door accommodating part formed to protrude upwards from the upper side cover part; a door supporting part formed to be stepped upward from the side of the door accommodating part; a second end cover formed to be near the door supporting part and having a side cover part covering the end of the opposite side of the provisional doorframe and an upper side cover part covering the upper side of the opposite side of the doorframe; and a first water tank accommodated in the doorframe accommodating part and including a nozzle part formed toward the doo

Abstract: A heat-ray-blocking fluororesin film includes a heat-ray-blocking metal oxide and a hydrotalcite-type compound represented by Chemical Formula [1], wherein the content of the hydrotalcite-based compound is 0.03 to 1.0 wt %. The heat-ray-blocking fluororesin can exhibit excellent heat-ray-blocking performance while keeping the properties inherent in fluororesin films such as mechanical properties, transparency and long-term weatherability and is transparent and can be used out of doors for a long period of time, wherein Mg2+1?a·A13+a (OH?)2·ANn?a/n·cH2O where 0.2?a?0.35 and 0?c?1; ANn? indicates n-valent anion.

Abstract: A sensor assembly comprises a housing having a major face and a side edge. The side edge is formed of a material that is capable of conducting light. A photosensitive element is positioned within the housing and facing the major face of the housing. A reflector is positioned within the housing. The reflector is shaped to direct light entering through the side edge onto the photosensitive element.

Abstract: A system includes a window treatment adjacent to a window of a room. At least one motor drive unit is associated with the window treatment, for varying the position of the window treatment. A sensor measures a light level (e.g., an outdoor light level) at the window. A controller provides signals to the motor drive unit to automatically adjust the position of the window treatment so as to control a penetration distance of sunlight into the room when the window treatment is partially opened. The controller is configured to position the window treatment in a bright override position if the measured light level is at least a bright threshold value. The controller is configured to select the bright threshold value from among at least two predetermined values. The selection depends on an angle of incidence between light rays from the sun and a surface normal of the window.

Abstract: A ladder for a mast assembly is provided. The ladder includes a frame assembly having a pair of side rails and a plurality of rungs. The ladder also includes a sub-assembly affixed to an interior facing side of the frame assembly. The sub-assembly includes a platform provided at a bottom section of the sub-assembly. The sub-assembly also includes a plurality of support rails provided at a top section of the sub-assembly. A first end of each of the support rails is pivotably coupled to the frame assembly. A second end of each of the support rails is configured to contact with the mast assembly when the ladder is in a deployed position with respect to the mast assembly. The frame assembly and the at least one sub-assembly is collapsible against the mast assembly.

Abstract: The “P C Holster/Tool Holder” is a unique, reusable, multipurpose tool holder which allows small hand tools or a container with a handle, such as “The Paint Can-dle” described in U.S. patent application Ser. No. 14/255,024 filed Apr. 17, 2014, to be removably attached and suspended in an upright, usable position, from the waist belt of a workman or attached to an extended ladder by utilizing selected strap slots provided, freeing up his hands for safer, more convenient handling and storage of said container or tool.

Abstract: A mobile lifeline ladder system is provided. The mobile lifeline ladder system includes a lifeline, a lifeline supply assembly, a rescue assembly and an anchor assembly. The lifeline has a first portion, a second portion and an intermediate portion that is positioned between the first portion and the second portion. The lifeline supply assembly contains the first portion of the lifeline. The lifeline supply assembly is configured and arranged to be coupled to a ladder. The rescue assembly contains the second portion of the lifeline. The rescue assembly is configured and arranged to be coupled to a first support structure. The rescue assembly includes a lifeline payout regulator to selectively payout the second portion of the lifeline. The anchor assembly is configured and arranged to be coupled to a second support structure above the ladder. The intermediate portion of the lifeline is slidably held by the anchor assembly.

Abstract: The present disclosure is directed to a drilling system including a drill string with two or more drill pipes (e.g., tubular), a drive system configured to rotate the drill string, and a neutral point sub disposed proximate a neutral point of the drill string, where the neutral point sub is configured to detect motion of the drill string.

Abstract: A downhole mud motor is formed of plural housings containing at least a drive section and a transmission section. At least a housing of the plural housings has a longitudinal axis and incorporates a reaming section with one or more rotary reamers. Each of the one or more rotary reamers is mounted in a respective pocket for rotation about a transverse axis relative to the longitudinal axis of the housing.

Abstract: A cutting element comprises a primary cutter including a first table of a hard material bonded to a first substrate of less hard form, the first substrate of the primary cutter having a recess formed therein in which a secondary cutter is located, the secondary cutter comprising a second table of a hard material bonded to a second substrate of less hard material, the first and second tables being spaced apart from one another by at least part of the first substrate.

Abstract: Cutting elements include an ultrahard material body formed at high pressure and high temperature conditions in the absence of catalyzing material to provide a material microstructure comprising a matrix phase of bonded together ultrahard material particles and interstitial regions disposed throughout the matrix phase providing porosity of less than about 6 volume percent. The body may include a substrate attached thereto, and may include an infiltrant material disposed in a population of the interstitial regions. The body may have regions with different porosities, e.g., with a higher porosity region located adjacent a substrate interface and/or along a central region. The body may include more than one infiltrant, each located in different regions. The infiltrant may be introduced into the body during a separate high pressure/high temperature process. The body may include a region which extends a depth from a working surface that is substantially free of any infiltrant.

Abstract: A downhole fluid flow control apparatus is disclosed. The fluid flow control apparatus includes a substantially tubular housing. In one embodiment, the fluid flow control device includes an inner diameter and an outer diameter, the inner diameter having a profile defined by one or more contour lines. The fluid flow control apparatus further includes a plurality of circular orifices defined on the tubular housing. In another embodiment, the fluid flow control apparatus includes a plurality of slotted orifices defined on the tubular housing.

Abstract: The disclosure relates to the treatment of rods made of metal, particularly to the method of reclamation of used standard length rods, such as pump rods already used in the mechanical deep-pumping extraction of oil, as well as to the product made with the help of the mentioned method. The method of remanufacturing of standard length rods includes the reheating of the rod body to a temperature favorable for the plastic treatment of the rod such as plastic deformation of the rod body under pressure. Such methods allow for the reclamation of rods of the desired geometric form and enhancement of the mechanical properties of the remanufactured rod. The technical outcome of the claimed invention consists in the reclamation of rods of the desired geometric form and enhancement of the mechanical properties of the remanufactured rod.

Abstract: A downhole clamp system includes a first clamp member having a first body having a first outer surface and a first inner annular surface configured to engage a downhole tubular. One or more lugs extend radially outwardly from the first outer surface, and a first clamping finger extends radially outwardly from the first outer surface. A second clamp member is arranged adjacent to the first clamp member. The second clamp member includes a second body having a second outer surface and a second inner annular surface configured to engage a downhole tubular. One or more lugs extend radially outwardly from the second outer surface, and a second clamping finger extends radially outwardly from the second outer surface.

Abstract: An oil field tubular has a composite material housing within which is located one or more wireless communication devices with a charge storage device for powering the communication device(s). In a disclosed method of installing a wireless communication device upon an oilfield tubular, a prefabricated composite shell formed with an inner skin and outer skin forming an inner space for containing the wireless communication device is applied to a surface of the tubular so as to form a cavity between the surface of the tubular and the prefabricated composite shell, a bonding material is introduced to the cavity and bonding material is cured.

Abstract: A method of casing connection in a multilateral well. A tieback tubular component is located in a wellbore below the casing window. A lateral completion tubular component is installed in the casing window. Tubular members can then be located in the tieback tubular component and the lateral completion component which are expanded by internal pressure to form a seal.

Abstract: Apparatus and method for sealingly connecting tubular members in a wellbore. In an arrangement where a portion of a tubular member is radially expanded into sealing contact within a second tubular member, and the second tubular member has circumferential recesses on an inner surface, a resilient member protrudes from a side wall of the recesses. The resilient member is acted on by the portion of the tubular member during expansion and maintains sealing contact to the portion after expansion.

Abstract: Apparatus and method for sealingly connecting tubular members in a wellbore. In a connector apparatus where a portion of a tubular member is radially expanded into sealing contact within a second tubular member, and the second tubular member has circumferential recesses on an inner surface, an annular resilient band member is arranged in the recesses. The annular resilient band member is acted on by the portion of the tubular member during expansion and maintains sealing contact to the portion after expansion.

Abstract: A method, system and apparatus for producing hydrocarbons from a low permeability reservoir formation. A wellbore (3) with a plurality of fractures (7, 9) designated as one of a first (7) or a second (9) set of fractures is provided. A first fluid conduit (11) is formed by an annulus between an outer casing (10) of a tubular and an inner tubular (16) member, and is arranged to transport produced hydrocarbons. An interior of the inner tubular member forms a second fluid conduit (12) which is arranged to transport an injection fluid. A set of first openings (14) is provided in fluid connection with the first fluid conduit, each first opening being located to substantially align with one of a first set of fractures. A set of second openings (15) is provided in fluid connection with the second fluid conduit, each second opening being located to substantially align with one of a second set of fractures.

Abstract: A wellsite system includes a drilling rig, an elevator, and a support system that includes a housing coupled to the drilling rig, a bracket member pivotably coupled to the housing, an actuatable arm coupled to the bracket member and configured to be moveable along an axis of the bracket member, and a servicing system coupled to the actuatable arm, wherein the servicing system is configured to threadlessly engage a tubular. A wellsite servicing system includes a first flange, a second flange configured to engage a flange of a tubular, and a spindle that is pivotable between the first and second flanges such that a central axis of the second flange remains in axial alignment with a central axis of the tubular when the central axis of the tubular is axially misaligned with a central axis of the first flange.

Abstract: A self-balancing, shoulder type elevator is comprised of two opposing jaws pivotally connected to a hinge plate. The jaws are engaged for rotation at the hinge plate by corresponding sets of gear teeth. Hangers on the jaws attach the elevator to suspending bails. An offset alignment linkage pivotally attaches each jaw to the hinge plate and a rotatable spindles pivotally attached perpendicular to the jaws. The alignment linkage maintains the spindles angularly congruent in orientation with the bails when the opposing jaws are pivoted open and closed.

Abstract: The object of the invention is a spragging mechanism for application in a tube. It is provided with a band and clamping means. The clamping means are arranged within the tube, outside of which the band is provided. The object of the invention is also a system for guiding bore head, provided with an spragging mechanism, head, means transferring the pressing force to the bore head, and also a curled tube fed from the drum into the wellbore. The curled tube (1) constitutes means transferring the pressing force, exerted by the pressing mechanism (2) via a mechanism releasably connected to the curled tube (1). The object of the invention is also a method of drilling a wellbore, wherein a bore head with an drill bit is lowered down the wellbore and pressed against its bottom, simultaneously inserting a tube into to wellbore.

Abstract: A guide and protection bushing assembly is mountable in a well production system (e.g., a subsea tree) having an intervention member (e.g., a blowout preventer). The assembly guides a string of components to a cable hanger sealing surface disposed in the production system without damaging the sealing surface. The assembly includes a body having a first end engaging an intervention member, a second end engaging the production system, an outer surface, and an inner through passage that expands radially at the first end to form a funnel shape. In some embodiments, the assembly may further include rollers, leaf springs, or a protective sleeve coupled to biasing members, a plurality of centering disks having a plurality of flexible flaps separated by spacers, and/or centering devices with fins separated by spacers.

Abstract: A mixer sensing assembly of a mixer for mixing a wellsite fluid in a tank at a wellsite is provided. The mixer includes a shaft driven by a driver and a paddle operatively connectable to the shaft and rotatable therewith. The sensor assembly includes a mount operatively connectable to the shaft, a fluid interface, and a mixing sensor. The fluid interface is responsive to flow of the wellsite fluid passing thereby, and is connectable to the mount. The mixing sensor is connectable to the mount, the fluid interface, and/or the shaft to measure a strain applied to the thereto whereby fluid parameters of the wellsite fluid may be determined. The wellsite fluid may be mixed moving the components in the tank with the mixer, and measuring a strain on the mixer by detecting movement of the sensor assembly.

Abstract: A mixing system and method for mixing a wellsite fluid including a mixture is provided. The mixing system includes a mixing unit, feed valves, and a calibrator. The mixing unit includes a mixing tank having mixing bins to pass the mixture therethrough, mixers positionable in the mixing tank, and a driver to drive the mixers. The feed valves selectively permit the components to pass into the mixing tank. The calibrator includes a calibrator sensor that connects to the mixers to measure equipment parameters thereof, and a controller connectable to the calibrator sensor and the feed valves to selectively adjust an amount of the components passing into the mixing tank based on the equipment parameters. The method may involve measuring equipment parameters of the mixers during mixing and calibrating by selectively adjusting an amount of the components passing into the mixing tank based on the measured equipment parameters.

Abstract: A coated screen has a screen frame. A screen mesh having a top surface and a bottom surface may be attached to the upper side of the screen frame and may extend the length and the width of the screen frame. A surface of the screen mesh may have a coating. The coating is at least one of hydrophilic, oleophilic, hydrophobic or oleophobic. A method of manufacturing a coated screen includes attaching a mesh to a screen frame. The mesh has a top surface and a bottom surface. A hydrophilic coating may be applied to the top surface of the mesh. A method of coating a screen includes applying a coating to a surface of a screen mesh wherein the coating is at least one of hydrophilic, oleophilic, hydrophobic or oleophobic.

Abstract: A method and apparatus are disclosed for drilling a wellbore using a concentric dual drill string. Multiple individually selectively isolable crossover ports intervaled may be provided along the length of the drill string thereby facilitating pumping a well control fluid within a wellbore annulus without the need to run-in or trip-out the drill string. Multiple one way check valves may be included at various points within an inner pipe of the dual drill string to minimize settling of particulate matter during long periods of non-circulation. In an offshore arrangement, the drill string may be used without a marine riser. A rotating control device is provided, and a hydraulic power unit is located at the seafloor for controlling and lubricating the rotating control device. A pump may be located at the seafloor for managing wellbore annulus pressure via the rotating control device.

Abstract: A molded slip assembly comprises a shear ring coupled to a plurality of slip segments to form a unitary solid ring and a plurality of drillable bases. A drillable base is molded to an inner surface of each of the plurality of slip segments.

Abstract: A setting tool (10) for use in a downhole wellbore is described as having a hydraulic fluid pumping mechanism (78) for providing pressurised hydraulic fluid. A piston mechanism (116) is moveable by said pressurised hydraulic fluid acting upon a portion of the piston mechanism (116). A resetting mechanism (84) is provided which when operated releases the pressurised hydraulic fluid from acting upon said portion of the piston (116) and which results in the resetting of the setting tool (10). In addition, a method for resetting a setting tool (10) is described including the steps of: (i) running the setting tool (10) downhole; (ii) actuating the setting tool (10) and thereby deploying an apparatus (203) downhole; (iii) retrieving the setting tool (10) to surface; and (iv) bleeding off pressure to reset the setting tool (10).

Abstract: In one aspect, a device for use in a wellbore includes a tubular body; a barrier member associated with an outer surface of the tubular body configured to retain a proppant; an actuating member associated with the barrier member configured to expand the barrier member in an annular direction; and a fluid channel associated with an upper extent and a lower extent of the barrier member, configured to allow a fluid flow therethrough. In another aspect, a method for completing a multi-zone wellbore, includes deploying a barrier device at a downhole location within the wellbore; expanding a barrier member in an annulus of the wellbore; providing proppant in the annulus of the wellbore; retaining the proppant in the annulus via the barrier member; and providing a fluid flow between an upper extent and a lower extent of the barrier member.

Abstract: A pivoting member is coupled to the stuffing box to allow the stuffing box to move in a radial direction relative to a wellhead.

Abstract: A valve comprises a housing including a first chamber, a second chamber, and a neutral chamber. In addition, the valve comprises a stem disposed within the housing. Further, the valve comprises a first valve member at least partially disposed in the first chamber and connected to the stem and a second valve member at least partially disposed in the second chamber and connected to the stem. The first valve member has a closed position seated in a first annular valve seat and an open position spaced apart from the first valve seat. The second valve member has a closed position seated in a second annular valve seat and an open position spaced apart from the second valve seat. Moreover, the valve comprises a biasing member configured to bias the second valve member to the closed position and the first valve member to the open position.

Abstract: A wellbore plug isolation system and method for positioning plugs to isolate fracture zones in a horizontal, vertical, or deviated wellbore is disclosed. The system/method includes a wellbore casing laterally drilled into a hydrocarbon formation, a wellbore setting tool (WST) that sets a large inner diameter (ID) restriction sleeve member (RSM), and a restriction plug element (RPE). The WST is positioned along with the RSM at a desired wellbore location. After the WST sets and seals the RSM, a conforming seating surface (CSS) is formed in the RSM. The CSS is shaped to engage/receive RPE deployed into the wellbore casing. The engaged/seated RPE isolates heel ward and toe ward fluid communication of the RSM to create a fracture zone. The RPE's are removed or left behind prior to initiating well production without the need for a milling procedure. A large ID RSM diminishes flow constriction during oil production.

Abstract: A wellbore plug isolation system and method for positioning plugs to isolate fracture zones in a horizontal, vertical, or deviated wellbore is disclosed. The system/method includes a wellbore casing laterally drilled into a hydrocarbon formation, a wellbore setting tool (WST) that sets a large inner diameter (ID) restriction sleeve member (RSM), and a restriction plug element (RPE). The RPE includes a first composition and a second composition that changes phase or strength under wellbore conditions. After a stage is perforated, RPEs are deployed to isolate toe ward pressure communication. The second composition changes phase to create flow channels in the RPE during production. In an alternate system/method, the second composition changes phase or strength thereby deforming the RPE to reduce size and pass through the RSM's. The RPEs are removed or left behind prior to initiating well production without the need for a milling procedure.

Abstract: A wellbore plug isolation system and method for positioning plugs to isolate fracture zones in a horizontal, vertical, or deviated wellbore is disclosed. The system/method includes a wellbore casing laterally drilled into a hydrocarbon formation, a wellbore setting tool (WST) that sets a large inner diameter (ID) restriction sleeve member (RSM), and a restriction plug element (RPE). The RPE includes a first composition and a second composition that changes phase or strength under wellbore conditions. After a stage is perforated, RPEs are deployed to isolate toe ward pressure communication. The second composition changes phase to create flow channels in the RPE during production. In an alternate system/method, the second composition changes phase or strength thereby deforming the RPE to reduce size and pass through the RSM's. The RPEs are removed or left behind prior to initiating well production without the need for a milling procedure.

Abstract: A wellbore plug isolation system and method for positioning plugs to isolate fracture zones in a horizontal, vertical, or deviated wellbore is disclosed. The system/method includes a wellbore casing laterally drilled into a hydrocarbon formation, a wellbore setting tool (WST) that sets a large inner diameter (ID) restriction sleeve member (RSM), and a restriction plug element (RPE). The WST is positioned along with the RSM at a desired wellbore location. After the WST sets and seals the RSM, a conforming seating surface (CSS) is formed in the RSM. The CSS is shaped to engage/receive RPE deployed into the wellbore casing. The engaged/seated RPE isolates heel ward and toe ward fluid communication of the RSM to create a fracture zone. The RPE's are removed or left behind prior to initiating well production without the need for a milling procedure. A large ID RSM diminishes flow constriction during oil production.

Abstract: A downhole tool is arranged for connection to a fluid-carrying string. The downhole tool includes: a first reversibly expandable sealing element; a second reversibly expandable sealing element placed at an axial distance from the first reversibly expandable sealing element; one or more fluid ports positioned between the two reversibly expandable sealing elements and arranged to be put in fluid communication with the fluid-carrying string; a first anchoring device arranged to engage a pipe body in a well; and one or more electromotors arranged at least to operate the two reversibly expandable sealing elements and the first anchoring device. The downhole tool further includes a first mechanically activatable release mechanism arranged at least to disengage the first anchoring device from the pipe body. A method is for utilizing a downhole tool.

Abstract: A wellbore plug isolation system and method for positioning plugs to isolate fracture zones in a horizontal, vertical, or deviated wellbore is disclosed. The system/method includes a wellbore casing laterally drilled into a hydrocarbon formation, a wellbore setting tool (WST) that sets a large inner diameter (ID) restriction sleeve member (RSM), and a restriction plug element (RPE). The RPE includes a first composition and a second composition that changes phase or strength under wellbore conditions. After a stage is perforated, RPEs are deployed to isolate toe ward pressure communication. The second composition changes phase to create flow channels in the RPE during production. In an alternate system/method, the second composition changes phase or strength thereby deforming the RPE to reduce size and pass through the RSM's. The RPEs are removed or left behind prior to initiating well production without the need for a milling procedure.

Abstract: A wellbore plug isolation system and method for positioning plugs to isolate fracture zones in a horizontal, vertical, or deviated wellbore is disclosed. The system/method includes a wellbore casing laterally drilled into a hydrocarbon formation, a wellbore setting tool (WST) that sets a large inner diameter (ID) restriction sleeve member (RSM), and a restriction plug element (RPE). The RPE includes a first composition and a second composition that changes phase or strength under wellbore conditions. After a stage is perforated, RPEs are deployed to isolate toe ward pressure communication. The second composition changes phase to create flow channels in the RPE during production. In an alternate system/method, the second composition changes phase or strength thereby deforming the RPE to reduce size and pass through the RSM's. The RPEs are removed or left behind prior to initiating well production without the need for a milling procedure.

Abstract: A technique involves a packer formed as an expandable packer with an internal expandable bladder. The expandable bladder is formed with a section that is radially enlarged relative to an axial end of the expandable bladder when the bladder is in a relaxed state. The bladder configuration enables use of a reduced expansion ratio while still allowing expansion of the packer to a desired large diameter.

Abstract: The present invention is related to a downhole tool having a flapper valve assembly for controlling the backflow of fluid into a tubing string. The downhole tool includes a first sleeve slidably disposable within at least a portion of the flapper valve assembly and the downhole tool. The downhole tool can also include a second sleeve slidably disposed within the downhole tool. The present invention is also related to a method of using the downhole tool. The method includes the step of positioning the downhole tool in a wellbore. Once the downhole tool is positioned in the wellbore, the first sleeve is shifted to interact with the flapper valve assembly.

Abstract: A nozzle assembly including a nozzle. The nozzle has an elongated body. The elongated body has a nozzle end at one end and a connection portion at another end. A joint section is connected with the connection portion. The joint section allows the nozzle to move axially and radially when an axial force is applied to the nozzle end.

Abstract: A downhole cementing apparatus (10) comprises a body (18) and a sealing arrangement (20) mounted on the body. The cementing apparatus (10) is deployable through a downhole tool (12) with a volume of cement (14). The sealing arrangement (20) is configured to define a varying point of sealing contact axially along the sealing arrangement with an inner surface of a downhole tool (12) as the cementing apparatus (10) is deployed through said tool.

Abstract: A tool for providing modifiable structures in a wellbore using ferrofluids in a downhole system is provided. The downhole system can include a tool body, a source of ferrofluid, and a magnet. The magnet can magnetically couple with the ferrofluid from the source for arranging the ferrofluid adjacent for modifying a parameter of an object coupled with or in the tool body when the tool body is positioned in the wellbore.