Abstract: In a door fitting for the upper guidance of sliding doors, which door fitting comprises a base body and at least one support element which is releasably connected to the base body, the base body and the support element are interconnected by means of two spaced joint areas. The first joint area comprises a snap-in connection with a certain pivoting capability. The second joint area includes a push joint with an axial degree of freedom which is oriented tangentially with respect to an imaginary co-axial cylinder extending around the pivot axis of the first joint area and parallel to the installation direction of the snap-in connection.

Abstract: A two-way soft closing device is mounted in a sliding door and has a sliding door track, two soft closing activation triggers, two roller carriers and a soft closing device. The sliding door track is an elongated member. The soft closing activation triggers are mounted movably in two ends of the sliding door track respectively. The roller carriers are mounted slidably in the sliding door track and are spaced apart at an interval. The soft closing device is mounted in the sliding door track, is located between the roller carriers and is mounted firmly in one of the roller carriers. Therefore, the soft closing device absorbs a collision between a sliding door plate and a doorframe when the sliding door is opened or is closed. Meanwhile, the two-way soft closing device eliminates noise coming from the collision and prevents an elder or a little child from being hit by the sliding door plate.

Abstract: A sensing edge for providing a signal to a controller indicating that a forward edge of a door is obstructed during operation. The sensing edge includes an elongate sheath, a first end plug and a first end flap. The elongate sheath has a first end and a second end. A first cavity is located at the first end. The elongate sheath is mounted to the forward edge. The first end plug includes an inner end, an outer end, first engaging structures extending from the inner end and a first vertical groove in the outer end. The engaging structures are positioned within the first cavity in an assembled configuration. The first end flap includes a relatively flat first body and a first flange structure. The first flange structure is positioned in the first vertical groove in the assembled configuration to secure the first end flap to the first end plug.

Abstract: An assembly for closing an opening comprising a door panel adapted for sliding movement between an open position and a closed position, a first extendable member located at a first edge of the opening and extendable towards an opposed second edge of the opening, and a second extendable member located at the second edge of the opening and extendable towards the first edge of the opening, and wherein the door panel includes a stop member attached thereto and movable therewith, the location of the stop member defining the limit of movement of the first extendable member towards the second edge of the opening, and the limit of movement of the second extendable member towards the first edge of the opening.

Abstract: The invention relates to the manufacturing of solid wood doors and consists in increasing the insulating value of a door by inserting an insulating material between the internal and external panels and in the center of the structural parts of the door. In this way, a door with a minimum of non-insulated surfaces is achieved. By using this system, the insulating value of the assembled door is significantly increased and reach the requirements of high energy efficiency programs such as ENERGY STAR™. In addition to this, the rigidity and the durability of the solid wood door are not significantly compromised. A door with a traditional style and high thermal resistance levels is achieved.

Abstract: Certain example embodiments of this invention relate to articles including anticondensation and/or low-E coatings that are exposed to an external environment, and/or methods of making the same. In certain example embodiments, the anticondensation and/or low-E coatings may be survivable in an outside environment. The coatings also may have a sufficiently low sheet resistance and hemispherical emissivity such that the glass surface is more likely to retain heat from the interior area, thereby reducing (and sometimes completely eliminating) the presence condensation thereon. The articles of certain example embodiments may be, for example, skylights, vehicle windows or windshields, IG units, VIG units, refrigerator/freezer doors, and/or the like.

Abstract: An anti-sputtering sill system for a window or door frame and a method of controlling sputtering associated with a sill of the window or door frame. The anti-sputtering sill systems may reduce or prevent sputtering by preferentially allowing air bubbles formed in the water in a containment tank in the sill to pass into a vent cavity in the sill that is vented to the interior of a building.

Abstract: Security screens for windows and other openings may include a screen pattern generally conforming to a two-dimensional foam topology, such that solid segments outline a plurality of openings or cells. The solid segments may include circular arcs of varying length and radius, intersecting at 120-degree angles, in threes, at a plurality of vertices. Manufacturing methods may include simulation of a two-dimensional foam subject to certain constraints, such as a target range for the areas of cell openings.

Abstract: A retractable covering such as a door or window blind or shade has a top rail, a bottom rail, a covering material extending between the top rail and the bottom rail, at least two lift cords extending downwardly from the head rail to the bottom rail for supporting the bottom rail, a covering operating system for enabling retraction and deployment of the covering, and an adjuster connected to at least two of the lift cords. The adjuster is preferably mounted in the bottom rail. The retractable covering also comprises an individual cord tensioner for allowing at least one of the lift cords to be individually tensioned. The individual cord tensioner operates independently of the adjuster. A method of adjusting the orientation and drop height of the bottom rail of the retractable covering is also provided.

Abstract: A medical device has a base having an internally tapered wall mounted to a neck of a tube holder that has a reverse taper, so that rotation of the base relative to the neck may be effected with a controlled drag to provide a smooth and secure relative rotation. The base may be rotated relative to the holder by rotationally moving a needle protection housing hingedly attached to the base. The housing may be rotated to any orientation relative to the tube holder so long as a torsional force greater than the predetermined friction between the tapered surfaces is applied thereto. The base is designed to have a ring at its base that biases against the base of the neck in a self-adjustable manner. Other devices may also be fitted with reverse tapered complementary connection fittings to securely couple to each other.

Abstract: An access ladder includes a plurality of sections connected together to telescope between an extended position and a retracted position that has an increasing reactive force to counterbalance the weight of the sections as they extend. A method for accessing a room with a ladder connected to a ceiling including the steps of moving the ladder to a fully extended position subject to an increasingly active force to counterbalance the weight of the ladder as it extends. There is the step of retracting the ladder into a retracted position in the ceiling.

Abstract: A directional drilling system consisting of a four-motor drilling head for better steering in directional drilling and vertical/horizontal drilling is developed. The rotational speed of each motor is independently controlled. The use of four motors in coordination with other traditional drilling variables allow precise control of the drilling direction and optimization of the rate of penetration (ROP). The top and right motors rotate in opposite directions to the bottom and left rotors to stabilize the roll rotation of the drilling head. Inclination (pitch) movement is obtained by increasing/decreasing the speed of the top motor while decreasing/increasing the speed of the lower motor. The Azimuth (yaw) movement is obtained similarly using the right and left motors. The drilling power is derived from down hole motors. A drill string transmits the drilling fluid and force on bit.

Abstract: An earth-boring tool includes a cutting element having a first volume of polycrystalline material including catalyst material and a second volume free of catalyst material. A boundary between the first volume and the second volume is nonlinear in a cross-sectional plane that includes a centerline of the cutting element and an anticipated point of contact of the cutting element with the surface of the formation to be cut. Each line tangent the boundary in the cross-sectional plane forms an angle with the centerline of the cutting element greater than the contact back rake angle of the cutting element. In some cutting elements, some portions of the boundary may have another selected shape. Some cutting elements have a boundary wherein tangent lines form angles of greater than 20° with the centerline of the cutting element. Methods of forming wellbores are also disclosed.

Abstract: The invention concerns an assembly for the production of a threaded connection, comprising a first and a second tubular component each with an axis of revolution (10) and each provided at one of their ends (1, 2) with a threaded zone (3; 4) produced on the outer or inner peripheral surface of the component depending on whether the threaded end is male or female in type, said ends (1, 2) being capable of cooperating by makeup and ending in a terminal surface (7, 8), at least one first contact surface being provided on one of the ends (1, 2) and at least one second contact surface being provided on the corresponding end (1, 2), such that the first and second contact surfaces come into contact during makeup of the ends (1, 2), characterized in that the first and second contact surfaces are respectively each coated with a first and a second dry thermoplastic film the matrices of which are constituted by one or more thermoplastic polymers, only one of the first and second dry thermoplastic films further comprising

Abstract: A progressive cavity device including an articulated coupling for converting the complex motion of a rotor into simple rotation. The coupling may include two shafts coupled to one another by joint assemblies connected to opposite ends of an intermediate shaft. The joint assemblies may include interleaved male and female spline portions and an elastomer filling the spaces between the male and female splines. The elastomer may deflect under load to allow the male and female splines to move relative to each other to allow the assembly to react to shaft misalignments. To limit elastomer bulging from the ends of the joint in response to shaft movement, the bulge area may be capped so that the elastomer cannot bulge outward and become extremely stiff. The joint may allow movement of the spines with very high torque capacity.

Abstract: A slip insert is disclosed that includes a body having a curved face for receiving a tubular member, a plurality of first threads formed in a first direction on the face, and a plurality of second threads formed in a second direction on a portion of the first threads, the second direction being opposite of the first direction.

Abstract: A hydraulically powered trough extension attached to a pipe handling, pipe pickup and pipe laydown tool can be extended hydraulically to facilitate transport of pipe to/from a drill rig. The hydraulically powered trough extension is semipermanently attached to the trough of the pipe handling, pipe pickup and pipe laydown machine to eliminate the need for special equipment to attach a trough extension to the trough. A specially designed hinge enables the hydraulically powered trough extension to be folded so as to lay flat on the trough of the pipe handling, pipe laydown and pipe pickup machine. When the hydraulically powered trough extension is fully extended the hinge mechanism does not obstruct the movement of pipe on or off the pipe pickup and pipe laydown machine. This feature enables the hydraulically powered trough extension to be easily and safely extended for moving pipe to/from the drill platform and when folded for easy transport to another work site without the need for extra equipment.

Abstract: A system for manipulating tubulars for subterranean operations includes a remote-controlled tubular lift system (RCTLS) having an engagement head configured to engage a proximal end region of a tubular and change the position of the tubular from a substantially horizontal position to a substantially vertical position, wherein in the vertical position a longitudinal axis of the tubular has an angular variation with respect to a predetermined vertical axis of not greater than about 5 degrees.

Abstract: Passive load balancing in a fluid bearing for a rotational device is provided using disclosed devices, systems, and methods. In particular, fluid bearing apparatus may include an outer member with an inner member disposed concentrically within the outer member. A fluid inlet may provide fluid communication with a surrounding space between the inner and outer members. A bearing may be connected to the inner member and may extend into the surrounding space. The apparatus may also include a piston located in the surrounding space between the bearing and the fluid inlet. A supporting fluid is located between the piston and a surface of the bearing to transmit force from the piston to the bearing.

Abstract: A downhole valve is described. The downhole valve has a pilot valve section and a tool section. The pilot valve section has a first tube. The tool section has a second tube slidably coupled to the first tube of the pilot valve section so as to provide fluid communication between the pilot valve section and the tool section. The tool section can be in the form of a signal valve section of a mud pulse telemetry valve, a reamer, a vertical steerable tool, a rotary steerable tool, a by-pass valve, a packer, a whipstock, or stabilizer.

Abstract: A sensor transportation apparatus to convey a sensor assembly through a wellbore. The apparatus comprising has an engagement structure to connect the sensor transportation apparatus to the sensor assembly, and one or more wheels arranged to rotate about an axis of rotation substantially perpendicular to a longitudinal axis of the sensor assembly when the transportation apparatus is connected to the sensor assembly. An orientation structure defining a form having a transverse outline which has a rotational center, wherein the rotational center is offset from a centroidal axis of the elongate sensor assembly.

Abstract: A liner assembly for use in a soil sampling system comprises a thin sheet of flexible plastic that can be laid flat for shipping and rolled into a cylindrical shape with overlapping edges for use as a liner. The rolled sheet can be inserted into a soil sample tube to line the sample tube during soil sampling operations. A wedge assembly comprising a split holding ring and a wedge ring holds the liner in place at the bottom of the soil sample tube. After the soil sampling system is advanced into the subsurface to collect a soil sample, the soil sample is removed by removing the cutting shoe from the sample tube and sliding the rolled liner sheet out the bottom end of the sample tube. The liner sheet can be unrolled to access and remove the soil sample. The liner sheet can be reused after removing the soil sample.

Abstract: A device adapted for a down-hole seismic source in a down-hole in the subsoil and containing water, the device being adapted for introduction into the down-hole and immersion in water, includes: a cartridge-holding head, having a cavity having a number of firing mouths on the side surface of the head, inclined relative to the longitudinal axis of the head towards the operationally lower end of the closed head, the cavity accommodating a cartridge inserted into the upper end of the head; a cartridge percussion system into a sealed body and adapted to cause the explosion of the cartridge, and connected in a top position of the head, the explosion of the cartridge, of the blank-loaded type, causing water to be expelled laterally through the firing mouths when the device is operationally immersed in water within the down-hole.

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: Systems and methods for using propellant as a force generator in component actuation are disclosed. One embodiment may take the form of a method including deploying at least one component to a subsea location, controlling operation of the at least one component using a control system, and igniting a propellant. The ignition of the propellant actuates the at least one component. Another embodiment may take the form of a subsea system including a control system, a propellant system in communication with the control system, and a component in communication with the propellant system. The propellant system is ignitable by the control system upon receipt of a ignite signal and upon losing communication with the control system after being placed in an armed state by the control system. The component is actuatable by the propellant system after ignition of the propellant system.

Abstract: An all-elastomeric sealing element for a rotating control device includes a base portion, a conical portion and has a central pipe opening through both the base portion and the conical section. The conical section has an elastomeric core layer and an elastomeric surface sealing layer which encases the core layer. The surface sealing layer is softer than the core layer, as measured on a standard durometer scale.

Abstract: A connector assembly for insertion into a hollow portion of a tool, fixture, or housing. The connector assembly may have a connector having two terminated end portions for reducing assembly time and cost with on-site termination. The connector assembly may include a first outer body having a hollow portion for insertion of at least a portion of a first insert-assembly sleeve portion. The connector assembly may have at least one retaining portion extruding radially inward and configured to be positioned into at least one radially inward groove of the first insert-assembly sleeve portion for securing at least a portion of the first terminated end portion in the first outer body. With this assembly, one of the terminated end portions without an outer body may be passed through the hollow portion and then assembled to the corresponding outer body and reinserted into an end of the hollow portion.

Abstract: A running tool with an overshot sleeve is provided. In one embodiment, a system includes a running tool and an overshot sleeve including a first portion threaded onto the running tool and a second portion. The first portion and the second portion are connected together in a manner that allows the first portion and the second portion to rotate with respect to one another. The second portion of the sleeve can engage an additional component, such as a casing hanger, and the running tool and the overshot sleeve can be configured to selectively convert rotation of the running tool into axial motion of the overshot sleeve with respect to the running tool. Additional systems, devices, and methods are also disclosed.

Abstract: The invention relates to a blowout preventer stack comprising blowout preventer stack components. A part of the blowout preventer stack components has a blowout preventer with an electric blowout preventer drive means for operating the blowout preventer. The energy necessary for operating the blowout preventer is provided by kinetic energy storage devices. The kinetic energy storage devices are flywheel energy storage devices, which serve as motor-generator-combination and store, provide and receive kinetic energy and exchange it into electric energy. A steam turbine arrangement and further emergency energy supply and emergency control systems serving as emergency energy supply system are connected to the blowout preventer stack and can be operated parallel to energy supply and control systems. This facilitates a multi-redundant energy supply and control system with upmost effectiveness as to fail-safety of the blowout preventer stack.

Abstract: Subsea well assembly having a Xmas tree (107, 207) and wellhead (103). From a tubing hanger (113) a tubing extends into the well. A part of a production flow passage extends vertically from the tubing hanger (113) in a vertical bore (111) of the Xmas tree. A fail close production master valve (PMV) (117) is arranged in the production flow passage. The tubing hanger (113) is arranged below the Xmas tree (107), such as in the wellhead (103). The Xmas tree (107) exhibits a branch (115) that deviates from the vertical bore (111), which branch constitutes part of the production flow passage. The fail close type production master valve (PMV) (117) is arranged in the branch (115).

Abstract: An assembly having a sleeve member located over a tubular body, there being a chamber between the two and by increased pressure in the chamber the sleeve member is morphed to secure it to a well bore wall and create a seal between the sleeve and well bore wall to form an isolation barrier. The tubular body is formed in one or more sections so that annular planar faces are created for abutment between the sleeve member and the tubular body so as to remove the requirement for complex fittings and reduce the time of construction.

Abstract: An isolation tool is presented for use in fluidly isolating first and second sections of tubing and more typically to a bleed valve/port of a gas lift mandrel. The isolation tool is configured for disposition within an interior of a gas lift mandrel. The isolation tool includes one or more resilient elements that may be compressed to expand to and seal against an inside surface of the tubing/mandrel. Such expansion and sealing by the resilient element(s) fluidly isolates sections of the tubing/mandrel. The isolation tool may be removed through the tubing when desired by releasing the compression of the resilient element(s) such that the resilient element(s) disengage the inside surface of the tubing/mandrel.

Abstract: A packer for use in a wellbore includes a packer mandrel. First and second pistons are slidably disposed about the packer mandrel defining first and second chambers therewith. An activation assembly initially prevents movement of the first piston. A release assembly initially prevents movement of the second piston. First and second seal assemblies are disposed about the packer mandrel such that actuation of the activation assembly allows a force generated by a pressure difference between the wellbore and the first chamber to shift the first piston in a first direction toward the first seal assembly to radially expand the first seal assembly and to actuate the release assembly and, actuation of the release assembly allows a force generated by a pressure difference between the wellbore and the second chamber to shift the second piston in the first direction toward the second seal assembly to radially expand the second seal assembly.

Abstract: A method relating to perforation operations, which comprises introducing a wettability altering fluid into a wellbore extending into a subterranean formation such that the wettability altering fluid seeps into the subterranean formation. Subsequent to introducing the wettability altering fluid, a fluid loss pill is introduced into the wellbore such that seepage of fluid between the wellbore and the subterranean formation is inhibited.

Abstract: An improved method and apparatus for dropping a ball, plug or dart during oil and gas well operations (e.g., cementing operations) employs a specially configured valving member with curved and flat portions that alternatively direct fluid flow through a bore or opening in the valving member via an inner channel or around the periphery of the valving member in an outer channel. In one embodiment, the ball(s), dart(s) or plug(s) are contained in a sliding sleeve that shifts position responsive to valve rotation. An optional indicator indicates to a user or operator that a ball or plug has passed a selected one of the valving members.

Abstract: The present invention is a retrievable back pressure valve device and method of using the same that may be placed in tubing during well completion and retrieved as desired by dropping a ball down hole, which then interacts with the valve to shear the positioning points allowing for retrieval as the valve is allowed to move up the well to be removed from same.

Abstract: A valve apparatus for in a wellbore. The apparatus may include: a housing fluidly connected to a work string, with the housing having an internal portion having a guide pin; a mandrel concentrically disposed within the internal portion of the housing, the mandrel having a piston attached at a first end of the mandrel and a mandrel cap attached at a second end of the mandrel, and wherein the mandrel contains a circulation port and a jet positioned within the piston, the jet operatively configured to receive the fluid and create a pressure drop during fluid flow through the jet; a guide bushing disposed about the mandrel, the guide bushing having a predetermined guide path contained on the guide bushing and wherein the predetermined guide path is operatively associated with the guide pin; and, a spring operatively disposed within the mandrel. A method for setting a down hole tool in a wellbore is also disclosed.

Abstract: A technique facilitates control of fluid flows in a wide variety of applications and environments, including downhole well environments. The technique utilizes a valve system which may include a shear seal valve for controlling fluid flows. The valve system utilizes port arrangements, components for energizing shear seals between mating components, and/or actuating components with improved degrees of freedom. The components facilitate repeatable and consistent actuation and operation of the valve system in the wide variety of applications and environments.

Abstract: Generally, a system for hydraulic fracturing of a geologic formation. Specifically, a transportable heating apparatus and method for the production of heated water for use in hydraulic fracturing of a geologic formation.

Abstract: A magnetic cleaning tool for collecting ferrous debris in a wellbore and a method of cleaning a wellbore. The magnetic cleaning tool has a tool body for attachment in a work string, one or more magnets supported on the tool body, and a sleeve located around the tool body which is arranged to be moveable along the body to provide selective coverage of the magnets. Embodiments are described providing shear pins and spring loaded balls to hold the sleeve either over the magnets or free of the magnets. An expandable piston, moveable by action of a drop ball, is described to release the sleeve. The sleeve is arranged so that the magnets can be covered and therefore effectively inactive on run-in and during downhole operations, and uncovered to be active when pulled out of the wellbore.

Abstract: The present application includes an assembly and method for a plunger tool configured to remove contaminants from a well bore. The assembly includes a hollowed body, a dart configured to selectively close off the passage of working fluid through the body, and a wear pad coupled to an exterior surface of the body to protect the body from corrosive wear. The assembly may further include a dart having a core member and wear coating. The dart is configured to be interchangeable within the body and without the need to disassembly the body. The wear coating compressing for insertion and being sheared off during removal the dart. The body includes an internal lip to prevent the undesired removal of the dart.

Abstract: A tool for suspending in a well retrieves various metal debris from the well, and includes an elongated tool body with a plurality of magnets included in a plurality longitudinal ridges which are circumferentially spaced. In the method a plurality of magnets can be positioned within openings, recesses, or pockets in each ridge, and held in place by one or more retaining plates, the tool being connected to a drill string and lowered into a well.

Abstract: Hydrophobically modified amine-containing polymers (“HMAP”) may be useful in mitigating scale buildup in a subterranean formation. For example, a method may include preparing a treatment fluid that comprises a base fluid and a plurality of HMAP-coated particulates that comprise particulates at least partially coated with an HMAP, wherein the HMAP comprises a plurality of hydrophobic modifications on an amine-containing polymer; introducing the treatment fluid into a wellbore penetrating a subterranean formation; forming a particulate pack that comprises at least some of the HMAP-coated particulates; and inhibiting scale buildup on the HMAP-coated particulates.

Abstract: Components of a downhole integrated well management system, and its method of use, can be deployed through tubing, a liner, or casing in existing wells without the need to deploy new pipe or remove and re-install pipe in the well. The system can seal the flow of hydrocarbon fluid and re-direct it into the claimed internal flow control module which, in embodiments, comprises a mandrel comprising one or more ports providing fluid communication between the interior of the mandrel and the outside of the mandrel and corresponding controllable port covers and/or seals that are adapted to open, partially open, or fully close a corresponding port; a flow controller; one or more sensor modules adapted to monitor a predetermined set of activities in a well; one or more communications module; and one or more power electronic modules. A surface module may be present and adapted to generate and transmit commands to the flow control modules and receive information from them.

Abstract: An electro-acoustic system for downhole telemetry is provided herein. The system employs a series of communications nodes spaced along a string of production tubing within a wellbore. The nodes allow for wireless communication between transceivers residing within the communications nodes and a receiver at the surface. More specifically, the transceivers provide for node-to-node communication up a wellbore at high data transmission rates for data indicative of fluid flow within the production tubing adjacent gas lift valves. A method of monitoring the flow of fluid gas lift valves is also provided herein. The method uses a plurality of data transmission nodes situated along the production tubing which send signals to a receiver at the surface. The signals are then analyzed to determine gas lift valve operation and fluid flow data.

Abstract: The present application includes and assembly having a dual dart assembly operable between an upper cage and a lower cage. The dual dart assembly is configured to connect an upper dart and a lower dart via a connecting rod. Therefore movement of one dart causes equal movement in the other dart. Movement of the dart is dampened upon impact at the top and bottom of the well by restriction of the working fluid as the dart assembly seats and unseats. A series of expandable seals are independently operated around the outer body and configured to expand and contact the outer wall in response to pressure increases within the outer body.

Abstract: An isolation system is disclosed that contains: a lower wet connect portion, a central production tubing, an isolation device associated with the central production tubing, and at least one communication line, wherein the at least one communication line is associated with the lower wet connect portion and is disposed through an inside diameter of the isolation device. Further, a method for isolating a lower completion is disclosed that includes: conveying an isolation assembly to the lower completion, the isolation assembly including: a lower wet isolation device; and routing the at least one communication line through an inside diameter of the isolation device. Further a completion system is disclosed that contains a lower completion system and an isolation system associated with the lower completion system.

Abstract: A method for the recovery of hydrocarbon from a reservoir includes arranging a chamber in fluid communication with the reservoir via at least one conduit. The chamber includes first and second wall parts movable relative to each other. An impact pressure is provided in the fluid to propagate to the reservoir via the conduit, where the impact pressure is generated by a collision process between an object arranged outside of the fluid and the first wall parts for the first wall part to impact on the fluid in the chamber. The chamber is arranged to avoid a build-up of gas-inclusions where the first wall part impacts on the fluid. This may be obtained by arranging the conduit in or adjacent to the zone where the gas-inclusions naturally gather by influence of the gravitational forces, or by placing the first wall part impacting on the fluid away from this zone.

Abstract: A reaction apparatus for providing reactants from a surface to a wellbore to create a generated gas when the reactants undergo a reaction in situ to affect the density of a fluid in the wellbore, the reaction apparatus comprises a reaction housing, the reaction housing comprises a first reactant cell configured to contain a first reactant, a second reactant cell configured to contain a second reactant, a mixing chamber, configured to allow the first reactant and the second reactant to mix, a first passage configured to allow the first reactant to pass from the first reactant cell to the mixing chamber, a second passage configured to allow the second reactant to pass from the second reactant cell to the mixing chamber, an outlet configured to allow the generated gas from the reaction to escape the mixing chamber, a line comprising a plurality of electric cables, and a reel.

Abstract: A device for heating hydrocarbon resources in a subterranean formation having a wellbore therein may include a tubular radio frequency (RF) antenna within the wellbore, and a tool slidably positioned within the tubular RF antenna. The tool may include an RF transmission line and at least one RF contact coupled to a distal end of the RF transmission line and biased in contact with the tubular RF antenna. The tool may also include an anchoring device configured to selectively anchor the RF transmission line and the at least one RF contact within the tubular RF antenna.