Abstract: A liquid concentrator having an evaporator assembly and a cyclonic separator includes features designed to improve the performance of the liquid concentrator. A settling chamber is separated from a sump of the cyclonic separator. A liquid inlet opening into a mixing chamber of the evaporator injects wastewater at low pressures. Features to aid in the cleaning of the liquid concentrator include easy open doors and clean water injection ports for cleaning interior portions of the liquid concentrator.

Abstract: The disclosed is a multi-slat combination blind of up-down-movement type which includes a main slat (1) and a lifting slat (2). The cross section of the lifting slat (2) in the width direction has the same shape as that of the main slat (1) in the width direction. The lifting slat (2) is attached on the upper or lower surface of the main slat (1). The lifting slat (2) can be driven to lift together with the main slat (1) and also to lift relative to the main slat (1) by a lifting mechanism. Various sun-shading and light-guiding blind systems formed by the multi-slat combination bind of up-down-movement type can achieve the optimization of controlling retro-reflection and guiding volume of direct sunlight according to season change and specific requirements of persons. High transparency is simultaneously kept whether solar elevation angle is high or low.

Abstract: A transmission assembly for a roller blind has a mounting frame, a roller, a coil spring, a spring axle, a turning element, a torsional spring, a major damper, a positioning device and a blind cloth device. The roller is mounted in the mounting frame. The coil spring is mounted in the roller. The spring axle is mounted in the coil spring. The turning element is connected to the spring axle. The torsional spring is mounted in the turning element. The major damper is connected to the coil spring and has a turning rod. The positioning device is mounted in the roller and has a rotating mount, a rail mount and a positioning ball. The rail mount is mounted in the rotating mount and has two rails. The positioning ball is mounted between the rotating mount and the rails. The blind cloth device is mounted the mounting frame.

Abstract: Provided is an endless operation cord that is easy to replace. The present invention provides an operation cord including: a main cord having one and the other ends; a first coupling part disposed at the one end; and a second coupling part disposed at the other end. The first and second coupling parts can be coupled together directly or via a coupling member and can be coupled or uncoupled by means of a relative rotation between the adjacent coupling parts or between the adjacent coupling parts and coupling member or a relative movement in a direction other than a length direction of the main cord between the adjacent coupling parts or between the adjacent coupling parts and coupling member.

Abstract: An architectural covering arrangement having two side rails for mounting in parallel either side of a window pane and at least one movable end rail for mounting perpendicular to the side rails and extending from one side rail to the other side rail, the side rails having on respective faces to be mounted on a window pane, a two-layer fastening structure with one of the layers adhered to the respective side rail and the other of the two layers to be adhered to the window pane, the two layers being freely attachable and detachable from one another.

Abstract: A display system includes a continuous flexible display, two main display supports each structurally configured to support a respective portion of the flexible display, a segment of the flexible display being located between the said respective display portions. The two main display supports are hingeable between a closed configuration for fixing the flexible display in a storage position and an open configuration for fixing the flexible display in an open position. In the storage position between the main display supports there is a free space enabling a partial curvature of said display segment without conflicting with the respective main display support. At least one additional display support is configured to support said segment of the flexible display in the storage position and facilitates the curvature of the display segment with a predefined radius which is larger than the critical radius Rcrit for the flexible display.

Abstract: The present invention relates to cost-effective and environmentally friendly polyester surfactants for use in flotation deinking The improved ink collection of the present invention can result in deinked pulp of high quality and/or yields that has excellent brightness and effective residual ink concentration values.

Abstract: The present invention relates to a composition comprising dispersion, having an aqueous phase containing a dissolved water soluble cationic coagulant polymer and if needed a dissolved inorganic salt. The aqueous phase further contains a dispersed water soluble flocculant polymer, wherein the water soluble flocculant polymer is formed of a water soluble ethylenically unsaturated monomer or monomer blend which are polymerized in the aqueous phase. The water soluble cationic coagulant polymer is cationic poly(alkyleneamine), which is the reaction product of the following reaction: H2N—(CH2)m—NR—(CH2)m—NH2+Cl—CH2CH2—Cl, wherein R is selected from the group consisting alkyl radicals containing from 1 to 4 carbon atoms m is an integer of from 1 to 4. The amount of dissolved inorganic salt is less that 10% by weight of the composition, and the composition is in a stable, pourable, dispersion form.

Abstract: A method for forming a web of transversely extensible fibrous material includes the steps of subjecting a fluid-permeable endless conveyor belt of elastic material, of thickness increasing from its longitudinal axis to its edges, to a localized transverse stretching operation, achieved by temporarily withdrawing a longitudinal band thereof from the surface on which it naturally slides and maintaining it in contact, in this stretched condition, with at least a part of the surface of a support member; depositing a web of pliable fibrous material having a liquid content between 3% and 70% by weight against that portion of the conveyor belt of elastic material which has been transversely stretched; and with vacuum, maintaining the web of pliable fibrous material adhering to the conveyor belt of elastic material during its return to its original configuration, to cause the transverse contraction of the web and the simultaneous partial removal of liquid therefrom.

Abstract: Disclosed is a vacuum mold with at least a first plate and a second plate to mold materials (e.g., amorphous alloys), and a method for manufacturing parts using the mold. An ejector mechanism, to eject molded material, is enclosed within an ejector box that is vacuum sealed relative to the plates. An ejector rod for moving the mechanism is also vacuum sealed via a seal in a vacuum feed through opening. Seals are provided between adjacent interfaces of the mold parts (plates and ejector box) to vacuum seal the mold. The mold is connected to at least one vacuum source that applies vacuum pressure thereto via a first vacuum port in a first direction. A second vacuum port may also be provided to apply pressure in a second direction. A vacuum release valve may be connected to the mold to release vacuum pressure applied to the mold.

Abstract: An apparatus and a method for producing an amorphous alloy foil strip, which are capable of producing an amorphous alloy foil strip having a large sheet thickness in an industrial scale, are provided. A production apparatus 101 for an amorphous alloy foil strip S includes: a pair of cooling rolls 113a and 113b; a driving unit 111 configured to rotate the cooling rolls; and a crucible 114 configured to supply a molten alloy sequentially to an outer circumferential surface of the cooling roll 113a and an outer circumferential surface of the cooling roll 113b. The crucible 114 is movable along a moving unit 116. A molten alloy is supplied alternately to the cooling roll 113a and the cooling roll 113b while rotating and water-cooling the cooling rolls 113a and 113b.

Abstract: An aircraft may include an interior and a deployable liquid cooler. The deployable liquid cooler may include a deployable heat exchanger that may be fluidly coupled to at least one heat source of the aircraft. The deployable liquid cooler may receive a cooling system fluid from the heat source for circulation through the deployable heat exchanger. The deployable heat exchanger may be movable between a stowed position in the aircraft interior and a deployed position outside the aircraft. The deployable heat exchanger may transfer heat of the cooling system fluid to an environment outside of the aircraft when the deployable heat exchanger is in the deployed position.

Abstract: Directly above a heat recovering unit (30) configured to carry out heat exchange between exhaust gas and a heat medium so as to heat the heat medium, a condensing unit (40) is disposed to carry out heat exchange between the heat medium and an engine coolant so as to heat the engine coolant. A vapor supply pipe (50) couples an upper portion of the heat recovering unit (30) to a lower portion of the condensing unit (40). In an inner space of the condensing unit (40), an LLC pipe (42) through which the engine coolant flows is disposed so as to surround an opening portion of the vapor supply pipe (50).

Abstract: Disclosed is a facility for transferring thermal energy of geothermal origin, for example to contribute to the heating of premises, this facility having the feature of including a heat exchanger placed in a water pipe (31). The principle of the facility is to extract the heat contained in the soil (1) in order to transfer it towards the required place (premises, offices, industrial processes, various equipment, etc.) and to recharge the soil (1) with heat extracted from a liquid used in public service, namely wastewater or drinking water, and/or used in industry.

Abstract: Thermally convertible food presentation modules are described. A single module may be used for both heating and refrigeration of foodstuffs as desired at any given time. Any well of a module may be switched between heating and cooling of food regardless of the status of any other well of the module.

Abstract: A fastener for fixing heat dissipation devices includes a shaft, a cap and an elastic member. The shaft includes a first end, an opposite second end, and a flange between the first and second ends. The cap is detachably engaged with the second end of the shaft. The elastic member partly encloses the shaft, and is retained between the flange and the cap. A heat dissipation device matching with the fastener is also provided.

Abstract: The present invention is to provide a heat exchange device which can facilitate assembling operations of a plurality of heat exchangers, the heat exchange device being featured in that a first heat exchanger 11 and a second heat exchanger 12 are arranged adjacent to each other so that the ventilation surfaces of the heat exchangers face each other, in that a first mounting plate 13 fixed to the side surface of the first heat exchanger, and a second mounting plate 14 fixed to the side surface of the second heat exchanger are fastened and fixed to each other so as to face each other At this time, the first mounting plate 13 has a space of a size such that the second mounting plate 14 can be connected and fixed to the first mounting plate 13 so as to face each other, in that insertion holes 25 are formed in a plurality of stages in the space so as to receive therein tube ends of refrigerant tubes 16 in a plurality of stages, the tube ends laterally projecting from the second mounting plate 14, in that the insert

Abstract: Disclosed herein is a refrigerator. The refrigerator includes a main body including inner liners defining a freezer compartment and refrigerator compartment, doors rotatably coupled to the main body, gaskets installed at rears of the doors, each of the gaskets having a magnet provided therein, an intermediate partition wall formed by filling a space between the inner liners with an insulation material, an intermediate front plate disposed at a front of the intermediate partition wall to fix the inner liners, and a heat pipe installed at the front of the intermediate partition wall in a line to prevent dew from being formed on the intermediate front plate, wherein the intermediate front plate is formed in an asymmetric fashion so that the heat pipe installed at the front of the intermediate partition wall is fixed to a middle portion of the intermediate front plate in a tight contact fashion.

Abstract: The heat pipe of the invention includes an evaporation section and two condensation sections. The evaporation section is located at a part of the heat pipe. The two condensation sections are separately located at two opposite sides of the evaporation section. The evaporation section and the two condensation sections communicate with each other, and a peripheral size of the evaporation section is larger than that of each of the condensation sections.

Abstract: A thin-type heat pipe structure includes a flat pipe, a second capillary structure, a third capillary structure, and a working fluid. The flat pipe has two boards and a containing chamber. A first capillary structure is set on the inner surface of the boards. The second capillary structure is contained in the containing chamber and covers a part of the first capillary structure. The third capillary structure is a stripe, contained in the containing chamber and clipped between the second capillary structure and another part of the first capillary structure. The working fluid is filled in the containing chamber. The overall design speeds up inner air's outflow and inner liquid's backflow.

Abstract: A thermodynamic capillary device for use in refrigeration and air conditioning systems has a tube (1) internally containing a plurality of capillary tubes (2) having facing flanges (3) and (4), each flange installed on an end of the tube (1), the capillary device installed on a vapor line (5) of the refrigeration or air conditioning system. The device has, on its top portion, a feeding tube (6) with a cooling jet and, on its bottom portion, a return tube (7), the device formed so that the assembly can be fitted into a housing (8), and integrated to the refrigeration or air conditioning system composed by a compressor (9), a mini condenser (10) and an expansion valve (11).

Abstract: A flat heat pipe includes a casing, a wick structure received in the casing, and a working medium contained in the casing and saturated in the wick structure. The casing has an upper plate and a bottom plate opposite to the upper plate. The wick structure is attached only to the bottom plate of the casing. The wick structure spaces from the upper plate with a vapor channel defined between the upper plate and the wick structure.

Abstract: A piezoelectric fan includes a vibration plate one end of which in a length direction is supported in a fixed manner and the other end of which in the length direction is a free end; and piezoelectric elements, attached on at least one of front and back surfaces of the vibration plate. In an intermediate portion of the vibration plate in the length direction, a right-angle bent portion is provided, and a plurality of divided blades are defined by slits in an area of the vibration plate extending from the free end to a position located a predetermined distance from the bent portion toward the free end. The piezoelectric element is attached on the portion of the vibration plate between the fixed end and the bent portion. Hence, variations in resonant frequency among the blades are reduced and the blades are efficiently excited using a common piezoelectric element.

Abstract: Provided is an original plate material for a heat-exchanging plate fabricated by press working, and also provided is a method for fabricating the original plate material. An original plate material (2) for a heat-exchanging plate (4) is a flat plate material (1) made of titanium on the surface of which convex parts and concave parts are formed, and the heat-exchanging plate (4) is then fabricated by press working the original plate material (2). The convex parts (5) and the concave parts (6) are formed in a manner such that the shape parameter defined by (Rz×L/P) is 12 ?m or less, where Rz (?m) denotes the height of the convex parts (5), L (?m) denotes the width of the concave parts (6), and P (?m) denotes the pitch between neighboring convex parts (5).

Abstract: A heat exchanger has a corner metal temperature attenuator that may attenuate a localized stack wise temperature gradient. The corner metal temperature attenuator may locally reduce or eliminate the source of large amplitude temperature swings near the end of the stack of passages which are correlated with the areas of greatest low cycle fatigue (LCF) damage. The corner metal temperature attenuator may locally block the inlet flow to every other (alternating) passage in the stack, beginning with the second passage inward from each end of the stack. The width of the blocked flow at any passage can be minimized using existing analytical methods to determine the threshold at which the metal damage index (DI) falls below a predetermined threshold at that location. Since the damage index naturally attenuates toward the passage stack midplane, the width of the blocked flow may also be reduced moving toward the stack midplane and eventually may go to zero blockage for all remaining alternating passages.

Abstract: A fabric for thermal management including the cooling of an object, such as a person's skin. The fabric is formed of a plurality of functional zones arranged to extend the period of cooling without the use of artificial cooling chemicals. The functional zones include one or more of three different functional zone types. The first type diverts moisture. The second type retains and stores moisture. The third type absorbs moisture. One of the functional zones may be punched to create perforations to provide fabric flexibility and to assist in liquid diversion from within the fabric. An anchor system facilitates retention of the fabric on the object.

Abstract: A controller connectable to a plurality of energy sources, energy demands and energy transfer units is contemplated. The controller is configurable to dynamically route excess energy from different sources to different demands via the energy transfer unit(s).

Abstract: An intelligent air moving apparatus for cooling an electronics enclosure includes a motor for driving a fan at a variable rotational speed and a microcontroller for controlling the rotational speed of the motor. The microcontroller includes a speed sensor for sensing the rotational speed such that when the sensed rotational speed deviates below a target speed, the microcontroller detects a locked rotor condition.

Abstract: A liquid cooled thermal control system and method for cooling an imaging system are provided. One imaging system is a computed tomography (CT) system having a detector that is positioned on a detector rail. The detector includes a plurality of detector components. At least some of the detector components are configured to detect x-rays. A liquid cooled thermal control system is provided having cooling channels in thermal communication with the detector rail. The cooling channels have a cooling fluid flowing therethrough to control a temperature of the detector components in response to one or more disturbances that changes a temperature of the x-ray detector. A control module is also provided in the liquid cooled thermal control system to adjust parameters of the liquid cooled thermal control system in response to the disturbances.

Abstract: A smart HVAC system adapted for selectively regulating fluid flow into a space generally includes an HVAC system including at least one active vent, a preferably variable blower fluidly coupled thereto, and at least one sensor associated with each vent, wherein the sensor is operable to cause the associated vent to shift between opened and closed conditions, and/or preferably the blower output to change, when an occupant is autonomously detected within at least a portion of the space.

Abstract: The invention relates to a method for regulating a cooling device fitted in or to a switchgear cabinet, by means of a regulating device, wherein the temperature of the switchgear cabinet interior air is detected and an interior fan assigned thereto for generating an interior air flow through an evaporator and providing cooling air is switched on if the detected temperature of the switchgear cabinet interior air exceeds an upper setpoint temperature, and is switched off if the detected temperature falls below a lower setpoint temperature, and the invention relates to an apparatus for carrying out the method.

Abstract: A system for providing cooled air to electronic equipment includes a data center having electronic equipment in operation, a plurality of on-floor cooling units, and a cooling water source. The on-floor cooling units cool air warmed by the electronic equipment. The cooling water source is configured to supply cooling water that reduces a temperature of the on-floor cooling units. The power usage effectiveness (“PUE”) of the system is less than 1.3, wherein the PUE is defined by energy used to operate the data center divided by energy used to run the electronic equipment.

Abstract: A rust resistant well perforating gun to fractionate a formation adjacent a well can include a gun carrier with recesses, threaded sections, seal bores, and a first coating to prevent rust. The rust resistant well perforating gun can have a charge loading tube for slidably engaging with the gun carrier. The charge loading tube can have charge holes, rear charge holes, end caps, and a second coating to prevent rust.

Abstract: The circulation system for a rotary shoe features a fluid diversion to a peripheral zone from which the flow is directed by tubes or housing bores to the vicinity of the cutting structure to improve cooling and removal of debris. Some of the fluid is directed straight through into the mandrel of the tool being milled. If the formation below is at low pressure a packer cup is added to the grip tool attached to the shoe at one end and to the fish at the other end. A swivel is used to prevent the packer cup rotation. Fluid diverted by the packer cup comes up out of the mandrel and into an annular space between the mandrel and the inner wall of the shoe and out from under the shoe by flowing past the cutters. Fluid loss to the formation is minimized and cooling and cutting removal is enhanced.

Abstract: A polished rod for supporting a sucker rod string comprising a one piece shank with an upper end and a lower end. A first connector is formed on the upper end of the shank and a second connector is formed on the lower end of the shank. The shank has a sealing section extending from the lower end toward the upper end and the sealing section has a polished surface and a uniform cylindrical diameter substantially equal to the diameter of the upper end and the lower end of the shank. The shank further has a latching section formed between the sealing section and the upper end. The latching section of the shank has a diameter less than the diameter of the sealing section and the upper end.

Abstract: An activation-device launching system, mounted on a cementing head, allows the deployment of a combination of darts, balls, bombs, canisters in order to activate downhole equipment, launch cementing plugs, deliver chemical products, or the like. A valve controls the flow of process fluid, and holds an activation device in place until it is time for launching. The valve also has a hollow axle through which balls may be launched into the process-fluid stream at any time.

Abstract: A well system and associated method can include an acoustic generator which can be used to excite a formation with acoustic waves transmitted from the acoustic generator. Another well system and associated method can include an acoustic generator which can transmit acoustic waves into cement surrounding a casing. Another well system and associated method can include an acoustic generator which can be used to transmit acoustic waves into an annulus surrounding a well screen during or after a gravel packing operation. Another well system and associated method can include an acoustic generator which can be connected in a drill string in close proximity to a drill bit, with the acoustic generator transmitting acoustic waves into a formation ahead of the bit.

Abstract: Systems and methods for using power cycle events to cause a downhole tool to change its operational state and/or transmit a data stream to the downhole tool. In one embodiment, a tool such as a gauge for an ESP is positioned downhole in a well and is configured to receive power from a control unit at the surface of the well. The control unit power cycles the downhole tool to communicate a need to modify the operational state of the tool. The tool may include a non-volatile memory to store an indicator of the tool's current operational state. When the tool is power cycled, the operational state is modified and the indicator is updated. The power cycling may cause the tool to increment through available operational states, or the timing of the power cycles may convey parameters or other operating information to the downhole tool.

Abstract: A tube wave reduction system for a borehole includes a tubular member; one or more openings in the tubular member, the one or more openings having a through-passage and a deformation region surrounding the through-passage; and an absorber in fluid communication with the one or more openings.

Abstract: A hydrocarbon resource processing device may include a radio frequency (RF) source and an RF applicator coupled to the RF source. The RF applicator may include a base member being electrically conductive, and first and second elongate members being electrically conductive and having proximal ends coupled to the base member and extending outwardly therefrom in a generally parallel spaced apart relation. The first and second elongate members may have distal ends configured to receive the hydrocarbon resource therebetween. In another embodiment, the RF applicator may include an enclosure being electrically conductive and having a passageway therethrough to accommodate a flow of the hydrocarbon resource and a divider being electrically conductive and positioned within the enclosure.

Abstract: A fluid sensor (and method) for determining at least one parameter of a fluid of a wellbore is provided. The fluid sensor has a base positionable in the wellbore, a base electrode operatively positionable in the insulation, and a raised electrode having at least one base portion and at least one raised portion. The base comprises insulation. The base portion is operatively positionable in the insulation. The at least one raised portion is positionable a distance above the base electrode such that a space is defined therebetween for the passage of the wellbore fluid therethrough. A voltage is applied across the base electrode and the raised electrode to generate a current therebetween whereby at least one parameter of the wellbore fluid may be determined. The fluid sensor is deployable into the wellbore via the downhole tool.

Abstract: A method to separate a gas phase from a liquid phase in a subterranean formation that includes positioning a downhole tool in a wellbore, operating the downhole tool to form perforations in the subterranean formation in a manner that creates cyclonic motion in fluids that exit the subterranean formation and enter the wellbore through the perforations, the fluid having a gas phase and a liquid phase, and producing the liquid phase to the surface, whereby the liquid phase is substantially devoid of the gas phase as a result of the cyclonic motion.

Abstract: The invention relates to a method for recovering oil from a fractured reservoir having an oil-wettable matrix and comprising at least one injection well and one production well, both of which arc in communication with the fractures and the matrix, wherein the method comprises the following steps in the following order: a) during a first stage, the injection, by an injection well, of a solution of viscosity-enhancing surfactants, capable of penetrating into the array of fractures, having limited interaction with the matrix, and creating a plug in situ so as to substantially and selectively reduce the perviousness of the fractures and to promote the passage of the solution of step b) into the matrix; b) during a second stage, the injection, by an injection well, of a solution of surfactants, capable of interacting with the matrix in order to make same preferably water-wettable and to extract the oil therefrom, said solution preferably flowing through the matrix; and after a latency period of at least 24 hours,

Abstract: A method for producing hydrocarbons from a reservoir is provided. The method includes positioning a burner having a combustion chamber in a first well, supplying a fuel, an oxidant, and one of water or steam from the surface to the burner in the first well, supplying a viscosity-reducing gas from the surface to the reservoir in a conduit separate from the fuel, igniting the fuel and the oxidant in the combustion chamber to generate heat and steam in the burner, injecting the viscosity-reducing gas and steam into the reservoir to reduce the viscosity of and heat hydrocarbons within the reservoir, and recovering hydrocarbons from the reservoir.

Abstract: The disclosure relates to a system (10) for improving zonal isolation in a well in a subterranean formation, comprising: a tubular (1) having a outer surface (11); and a swellable coating (2) coating the outer surface (11) of said tubular (1), said swellable coating (2) having an external surface (21); and/or a composition (20) provided in an annular space outside said tubular (1). The swellable coating (2) is made of a first swellable material (3) able to swell in contact with a first fluid (6) on said external surface (21) and/or the composition (20) is made of a second swellable material (4) able to swell in contact with a second fluid (7), and wherein said first (3) and/or said second (4) swellable materials include an elastomer compounded with an aqueous inverse emulsion of particles of a polymer comprising a betaine group, said elastomer being able to swell in contact with hydrocarbon and saline aqueous fluids.

Abstract: A method and apparatus for wellbore perforation in which a laser beam at a downhole location of a wellbore is directed to a target area of a wellbore wall to be perforated. The laser beam is guided through a longitudinally extensible nozzle onto the target area and a purge fluid is introduced into the longitudinally extensible nozzle, thereby longitudinally extending the nozzle toward the target area. The purge fluid in the longitudinally extensible nozzle is passed through a purge fluid outlet of the nozzle onto the target area, thereby removing debris from the target area generated by the laser beam.

Abstract: A method and apparatus for releasing a coiled tubing internal line from a bottom hole assembly. The internal line may not have strength sufficient to permit the application of a tension force at the surface to disconnect the internal line from the bottom hole assembly. The bottom hole assembly may include a ball seat adapted to retain a ball permitting the application of a pressure differential above and below the ball seat. An anchor assembly connected to the internal line may be adapted to disconnect from the bottom hole assembly upon the application of predetermined pressure differential. A predetermined pressure differential may be used to shear a portion of the internal line releasing an upper portion of the internal line from the bottom hole assembly.

Abstract: A method is disclosed, including but not limited to positioning a tool containing an injection liquid in a well bore formed in a formation; injecting the injection liquid through a probe into the formation; and withdrawing formation fluid from the formation through the probe. A system is disclosed for performing functions useful in positioning a tool containing an injection liquid in a well bore formed in a formation; injecting the injection liquid through a probe into the formation; and withdrawing formation fluid from the formation through the probe.

Abstract: A running tool sets and pressure tests a bridging hanger and a packoff in a single trip. The running tool has a stem, an inner body, and a piston. The inner body is connected to the stem so that rotation of the stem relative to the inner body will cause the stem to move longitudinally. The piston is connected to the stem so that the stem and piston rotate and move longitudinally in unison. A piston engagement element is housed in the inner body and is adapted to engage the piston when the bridging hanger is set to prevent premature setting of the packoff. The piston engagement element can be disengaged once the bridging hanger is set, thereby allowing the piston to set the packoff.

Abstract: The invention provides a method and system for accessing a well to subterranean formations in which a first well control assembly is directly associated with the well and a second well control assembly is remotely and capable of being in fluid communication with the well.