Abstract: The present invention relates to a bursting insert for installation in a pipeline system for transporting a fluid showing a spontaneous exothermic reaction. The bursting insert comprises a wall which surrounds—at least in part on the outside—a passage volume having the fluid flowing therethrough in a passage direction. A pressure discharge line which is sealed relative to the passage volume with a bursting body extends out of the passage volume. When a predetermined bursting pressure is exceeded, the bursting body can be transferred into a state in which the passage volume and the pressure discharge line are interconnected in fluid-conducting fashion. For an easy mounting of the bursting body, the bursting insert can be designed as a pipeline module which can be installed and dismounted repeatedly in the pipeline system for replacing the bursting body.

Abstract: A pilot-operated pressure shut-off valve having a main control piston which, when an upper system limit pressure in the hydraulic system is reached, connects an inlet, via which pressure medium can be fed to a hydraulic system, to an outlet by taking up a first switching position and, when a lower system limit pressure is reached, separates from the outlet by taking up a second switching position. The pressure shut-off valve has a pilot valve arrangement by which the fluidic connection of a control space adjacent to the main control piston can be changed in order to control the main control piston, and which has a valve housing, with a first pilot piston and a second pilot piston accommodated within the first pilot piston for compact construction and capability to adjust the two pilot pistons mechanically completely independently of each other.

Abstract: The modular plumbing accessary utilizes an open sided box secured during rough-in to and between exposed wall studs. A unitary water pipe and anti-hammer assembly is connected to the box with only an outlet pipe exposed in the box interior. The water inlet pipe and an anti-hammer assembly and its tee connection upstream of the outlet pipe are located outside of the box interior. A drain inlet is also exposed in the box interior. Rough-in connections are made between the building pipes and the respective water inlet and drain outlet pipes at the box. Further, a compression seal shutoff valve will be secured during rough-in to the water outlet pipe within the box interior. The open side of the box faces the sink, making line connections between the sink and the valve and drain inlet easy and reliable.

Abstract: The invention relates to an internal pressure equilibrium adjustment device for airtight space with rapid operation and simple structure. The invention comprises of a pipe 8 which is mounted on the wall 9 of airtight space and has a plurality of holes 81 at the periphery, a case 7 which surrounds the external periphery of the pipe 8 and has a plurality of holes 71 on the wall, a first port 3 which is formed at one end of the case 7, a first ring 4 which is provided above the first port 3, a second port 5 which is formed at the partition wall 12 of the case 7, and a second ring 6 which is provided above the second port 5.

Abstract: A mobile concrete pump comprising at least five mast arms (1 to 7) which are pivotable relative to each other about horizontal rotation axes (B to G). The first respective mast arm is hinged to a mast block (22) so as to be pivotable about a horizontal rotation axis (A), said mast block being rotatable about a vertical axis (20), while one end of the last mast arm has no joint. In order to be able to add other mast arms in a modular manner, a first Z-type folding group comprising the last three mast arms, a first coil-type folding group comprising the penultimate, third to last and fourth to last mast arm, and a second Z-type folding group comprising the third to last, fourth to last, and fifth to last mast arm are provided in a preferred embodiment.

Abstract: A device includes a housing that has a plurality of monolithically formed walls, wherein selected walls are provided with inlet and outlet ports respectively. The housing includes a coupling in fluid communication with the inlet and outlet ports, a mechanism for detecting a fluctuation in water pressure, and a mechanism for selectively prohibiting water flow. The prohibiting mechanism cooperates with the detecting mechanism. The housing also includes a mechanism for providing an audible notification when the water supply is toggled between interrupted and reinstated modes and a mechanism for manually controlling the prohibiting mechanism. The manually controlling mechanism is electrically coupled to the prohibiting mechanism. An internal power supply source supplies power to the detecting mechanism, the prohibiting mechanism, and the manually controlling mechanism. A diode is attached to the housing and is illuminable when the power supply source reaches a minimum threshold level.

Abstract: A bottom wall 11 of a valve chamber 13 of an electric switching valve 10 includes a laminated structure having a bottom cover 11 to which pipe fittings 14, 15, 16 are connected; a valve seat 19 on which the valve ports 19C, 19D are opened and which an end wall of the valve body 20 slidably contacts; an intermediate plate 17 interposed between the bottom cover 11 and the valve seat 19 with communication openings 17D, 17E for connecting the pipe fittings 15, 16 to the valve ports 19C, 19D. At least one of the valve ports 19C, 19D is biased toward a rotation center of the valve body 20 against the center of the corresponding pipe fitting 15, 16.

Abstract: A modular manifold comprises a front cap, an end cap, and at least two adjoining port modules being securely sandwiched between the front and end caps. Each of the adjoining port modules comprises an internal channel adapted for fluid flow, and a side port in communication with the internal channel. The internal channels of the adjoining port modules define a common manifold channel. The side ports are aligned substantially in a linear fashion and adapted to provide access to the common manifold channel. The common manifold channel is accessed at one end via the front cap and sealed at another end via the end cap.

Abstract: A valve island that has a pilot fluid passageway located on the side of the sub-base is disclosed. The pilot fluid passageway is formed into one side of the sub-base and couples the front end of the sub-base with the back end of the sub-base. A gasket or sealing device may be used to help form a seal around the pilot fluid passageway when the sub-base is joined to a mating part.

Abstract: A heddle (14) of the invention is distinguished by end eyelets (15, 16) of reduced size, with which heddle support rails (6, 7) of reduced cross section are associated. The axial play of the heddles on the heddle support rails (6, 7) is limited to from 0.5 mm to 1.5 mm. The lateral play is in the range of 0.2 mm to 0.5 mm. This system formed of heddle support rails and heddles is especially suitable for particularly rigid heddle shafts for power looms with an extremely high operating speed.

Abstract: An existing tying machine (20) is modified by the addition of components to produce a self contained automatic laundry tie-out station (210). The components for the modification include a linear slide support yoke frame (22), attached on top of the component mounting platform (24) having a pneumatic linear slide unit (34) mounted on top. A hanger slide shaft assembly (220 or 220a) is attached to the linear slide unit which retains a selected group of hangers with laundered clothing (36?). Gravity conveyer feed lines are aligned with the hanger slide shaft (230) and a pneumatic system operates the slide unit with controls integrated into the tying machines existing electrical system. The hangers are drawn into the tying machine where they are bunched together and bound with a twist tie and then returned to the gravity laundry conveyer system. After the tying is completed a remote signal releases the bound hangers.

Abstract: A reinforcement binding machine and a reel used for the machine capable of solving such a problem that wire comes out of the flange of the reel whereby wire feeding is disabled, wherein a recessed part (42A) is steppingly provided at the opening edge part of a cassette case (40), the flange of the cassette case (40) on the opening part side is formed in a large flange (55) having a diameter fitted to the recessed part (42A) of the reel (40), an engaging claw (47) for preventing the reel from coming out of a reel mounting shaft (43) is formed on the inner peripheral surface of a hub hole (51) for inserting the reel mounting shaft (43) of the reel (40) therein, and the engaging claw (47) and the reel mounting shaft (43) are engaged with each other so that the reel (41) can be rotated intermittently.

Abstract: A tube set for dispensing components into a product bag includes a plurality of tubing lines, a manifold, and a bypass. The manifold has a plurality of inlets, each inlet adapted for connection to a respective tubing line. The manifold also has an outlet connectable to a first feed tube of a product bag. The bypass is associated with at least one of the plurality of tubing lines. The bypass has a bypass inlet connectable to the tubing line associated with the bypass and at least two outlets. A first outlet is connected to a tube line in fluid communication with an inlet of the manifold and the second outlet is removably connectable to a second feed tube in fluid communication with the product bag, independent of the manifold.

Abstract: A check valve for use in an air-packing device has a simple structure and promotes to easily inflate all of the air cells of the air-packing device with a relatively lower pressure. The check valves can be easily attached to any locations of the air-packing device. The check valves are formed when a check valve film is attached to one of the first and second thermoplastic films. Peeling agents of predetermined pattern are applied on the check valve film which prevents heat-sealing between the first and second thermoplastic films for air tightly separating two adjacent air containers. The check valve is configured by an air flow maze portion having a zig-zag air passage and a common air duct portion which provides the air to the air flow maze portion of a current air container as well as to the air flow maze portion of a next air container.

Abstract: A vehicle tank includes an intake tube, on the end of which is placed a filling-fixture containing an automatic tank closure. The filling-fixture is made of one piece with the intake tube. The automatic tank closure is integrated in an insert. The filling-fixture forms a recess on its upper end into which the insert can be placed. A fissure joint is sealed with the aid of a sealing element between the filling-fixture and the insert and the securement of the insert in its recess is assured by a retaining flange. The flange is circumferentially connected in a radially outlying area with the filling-fixture and the flange extends so far radially inward that it covers the fissure joint and an inward extending area of the upper side of the insert.

Abstract: The present invention provides a vehicle cover having a main cover portion with a plurality of peripheral edges, a fastening band attached along the plurality of peripheral edges which runs across the windshield, a pair of fastening band extensions extending under the side mirrors of the vehicle, and the fastening band extending down the length of the cover's side to secure the front end of the cover to the vehicle, and an anchoring means attached to the rear of the vehicle cover for securing the rear end of the cover to the trunk lid or a license plate frame.

Abstract: A studless tire which is provided in the tread portion with one or more circumferential portions provided with V-shaped sipes, the total width of the one or more circumferential portions is in a range of from 10 to 25% of the tread width, each V-shaped sipe is composed of two parts extending from its vertex located in a central region of the circumferential portion, and the V-shaped sipes in each circumferential portion are oriented towards the same direction and arranged at intervals in the tire circumferential direction.

Abstract: A flexible system for winter traction products that allows for component repairability, interchangeability, customization and resizing, all without requiring tools. The key to this system is the provision of connectors which provide interconnection of multiple components whereby at least three points of connection on three components can be interconnected by the connectors. The interconnection of the points of connection by the connectors enable components to be interchanged within the assembly for establishing a desired style and fit of the tire chain to a variety of tire sizes and tire chain types.

Abstract: A pneumatic tire comprises a pair of bead portions each having a bottom face and an axially outer side face which contact with a bead seat and a flange of a wheel rim, respectively, wherein the axially outer side face comprises a radially outer part for contacting with a radially outermost curved portion of the rim flange; and a radially inner part for contacting with a radially inner flat portion of the rim flange. In a meridian section of the tire, the radially inner part is a substantially straight line, and the radially outer part is (A) a substantially straight line or (B) convex line or (C) a curved concave line having a radius of curvature of not less than 300 mm, and the radially outer part extends radially outwards from the radially outer end of the radially inner part while inclining axially outwards.

Abstract: Tire made of a rubber-based material of black color comprising at least one design on an outer surface of the said tire, the material being a diene elastomer or rubber, the design having on its outer surface at least one light diffraction grating formed of a plurality of ridges or grooves of height H arranged parallel to one another with a period P. The process for obtaining a design of variable color on an article made of a rubber-based material of black color, the design being visible in at least one color different from black.

Abstract: A radial motorcycle tire comprises a tread portion with a pair of tread edges, a pair of sidewall portions, a pair of bead portions each with a bead core therein, and a band disposed in the tread portion and composed of windings of at least one cord wound at an angle of not more than 5 degrees with respect to the tire equator. The tread portion is provided radially inside the band with at least two layers of cords comprising a radially outermost first layer and a radially inner second layer next to the first layer, wherein with respect to the tire equator, the cords of the first layer are inclined to a direction at an angle of from 65 to 90 degrees, and the cords of the second layer are inclined to the same direction as the first layer at an angle of from 65 to 90 degrees.

Abstract: An apparatus 1 for continuously forming an FRP square pipe comprises a long core 10 for laminating prepreg sheets, and to this core 10 are fed prepreg sheets from prepreg laminating devices 20, 30, 40 and 50 with a release film interposed between the core, so as to be laminated into square pipe form. The core 10 has an outer diameter size smaller than the inner diameter size of the square pipe to be formed. The outer circumference of the square pipe is wrapped with a tape-like film fed from a tape-like release film wrapping device 200 in spiral fashion, and the work is heated and pressed in a hot press 100. The work is then subjected to additional heating in a postcure furnace 110 to form the FRP square pipe. The square pipe is intermittently pulled by a puller 130 disposed downstream of a clamp 120. The pipe is then cut to predetermined lengths by a cutter not shown to be completed as a product.

Abstract: Transfer devices are disclosed. At least one transfer device includes a housing, a supply roll rotatably mounted to the housing, a take-up roll rotatably mounted to the housing, and an application head. The supply roll has a wound supply of liner wound thereon, and the liner has an adhesive carrying surface with an adhesive provided thereon. The take-up roll has at least an end portion of the liner connected thereto such that rotation of the take-up roll in a take-up direction winds portions of the liner unwound from the supply roll onto the take-up roll. The application head includes a plurality of rollers that are rotatable about substantially parallel axes spaced apart from one another, and a closed-loop belt that is trained about the plurality of rollers to provide a transfer surface facing outwardly of the device. The rotation of the rollers enables the belt to travel around the rollers.

Abstract: A method and applicator for applying sheet material to a substrate. The applicator comprises two outwardly facing burnishes, each having an outwardly facing surface. The surfaces are disposed at an included angle of at least 180°, and preferably at least 270°. This geometry allows for positioning sheet material, such as wallpaper, into a corner to begin application at a desired position. Further, this geometry allows the user to conveniently and ergonomically effectively rotate the applicator as the sheet material is being applied. The applicator and sheet material may be provided together in a kit.

Abstract: The present invention is directed to a welding tip for welding polymeric materials such as containers. The welding tip includes a cylindrical body. The cylindrical body defines a central bore and includes a perimeter around the bore. The perimeter includes one or more knurls. The knurls provide the welding tip with varying temperatures and pressure points to create a more desirable weld.

Abstract: A cover peeling machine includes a pair of rolls. The roll has an almost conical shape. Both of the rolls are rotated in a reverse direction. The direction of the rotation is an inward direction as seen from above. A golf ball is put close to a tip of the roll. In the vicinity of the tip, a distance between a nip of the roll and the golf ball is short. Therefore, a clip portion formed on the golf ball can be easily bitten between the rolls. With the rotation of the roll, a cover is peeled from a core. A groove formed on a surface of the roll can prevent the roll and the cover from slipping. After the removal, the cover and the core are recycled respectively.

Abstract: The present invention is a modular lid system for an underwater swimming pool cover or other underwater enclosure. The modular lid has a rigid lid portion which has an overall buoyancy such that the lid portion closes the enclosure underwater by force of gravity. The modular lid system also has a remote power pack for providing a source of hydraulic power to the modular lid. The remote power pack is located at a position remote from the swimming pool. The remote power pack includes a hydraulic pump and a hydraulic drive mechanism is actuated by the remote power pack. The drive mechanism has a predetermined range of movement. A decoupled linkage mechanism extends between the hydraulic drive mechanism and the lid portion for causing limited opening movement thereof. The limited opening movement corresponds to the predetermined range of movement of the hydraulic drive mechanism.

Abstract: A window blind is constructed to include a headrail, a blind body suspended below the headrail, a linking mechanism mounted inside the headrail and having a power input device fastened pivotally with the headrail and an actuator rotatable with the power input device and connectable to the blind body, and a driving control mechanism. The driving control mechanism includes a suspension rod suspended from the headrail and a controller detachably coupled to the suspension rod for enabling the suspension rod to be driven by the controller to rotate the power input device and to further drive the actuator to move the blind body, causing the blind body to change the window shading status.

Abstract: A method is disclosed for producing a casting mold for an engine block, the casting mold includes a mold seat for a cast-in-place cylinder bore liner, the seat having a surface disposed at an angle relative to a longitudinal axis of the cylinder bore liner, wherein the cylinder bore liner becomes slightly unseated upon thermal expansion.

Abstract: In order to more effectively utilise seed crystals 35, 55 to achieve a single crystal grain orientation for a component without the problems of utilising a helix constriction previously necessary to avoid epitaxial grain competition and growth. The present invention creates a wax component pattern 30. This pattern 30 comprises integral sections of wax for a mould component section and for a spacer section with the seed crystal 35 or holder for that crystal therebetween. This pattern 30 is then utilised in order to form a final refractory mould within which the component is formed. By appropriate choice of the spacer section 32, an appropriate spacing between an upper surface of the seed 55 which will be the initial interface with molten castable material to form the component and a chiller surface through which heat is transferred can be determined in order to achieve successful transfer of the seed 55 orientation to the formed component.

Abstract: The invention relates to a hot-top mold for a strand casting apparatus, consisting of a hot-top, which lies on the upper side of a parting agent distributor and presses it with its underside against the surface of a mold, an overhang being formed on the radially inner surface of the hot-top, which protrudes beyond the parting agent distributor in the direction of take off of the strand, the hot-top being centered and held by an outer ring, which is releasably fastened to the mold. The mold surrounds a function ring toward the bearing surface of the mold which, together with the parting agent distributor, forms function surfaces with adjustable roughness on the surfaces. In the parting agent distributor, radial channels are formed at the upper side and the underside, the channel cross sections at the upper side and the underside being in a ratio of 1:3 to 1:5 to one another.

Abstract: A method is provided for removing a fugitive pattern, such as wax or other meltable pattern material, residing inside of a refractory mold by discharging condensable vapor such as steam inside the mold to contact and melt the pattern while an exterior of the mold is subjected to a non-condensing gas atmosphere such as air outside of the mold wherein the condensable vapor inside the mold and the atmosphere outside of the mold are at substantially the same pressure. Condensable vapor is condensed inside the mold where the vapor has contacted the pattern while the exterior of the mold remains free of condenate. The condensed vapor and melted pattern material are drained out of the mold. The condensed vapor can be discharged initially inside a hollow sprue of a fugitive pattern assembly to melt the sprue and then inside the mold to melt the patterns of the pattern assembly.

Abstract: The invention relates to a plate-type heat exchanger comprising a stack of double-walled heat exchanger plates (30–32) which are permanently interconnected and each include two plate members (33, 34) having a central heat transfer portion (35) and an edge portion (36) bent upwardly with respect to the plane of the central heat transfer portion (35), separate flow passage spaces for at least two heat exchange fluids being defined between the double-walled heat exchanger plates (30–32), the two plate members (33, 34) entering into close mutual engagement at least partly in the area of the central heat transfer portion (35) and the upwardly bent edge portion (36) yet permitting heat exchange fluid between the plate members which gets to the upwardly bent edge portions (36) to exit through an aperture between the upwardly bent edge portions (36), the upwardly bent edge portions (36) being formed respectively with an outer edge (33a, 34a).

Abstract: Techniques for heat transfer are provided. In one aspect of the invention, a heat-transfer device is provided. The heat-transfer device comprises one or more microchannels suitable for containing a heat-transfer fluid, one or more of the microchannels having protruding structures on at least one inner surface thereof configured to affect flow of the heat-transfer fluid through the one or more microchannels. The structures may comprise posts coated with a hydrophobic coating.

Abstract: A fluid heat exchanger assembly having an upper wall and a lower wall extending between the inlet and the outlet for establishing a direction of flow to cool an electronic device. A plurality of projections extend linearly transversely across the direction of flow to define rows of projections with linear cavities between adjacent projections so that fluid flows into and out of the cavities as the fluid flows across the rows of projections for contraction and expansion of the coolant flow to maximize heat transfer. The projections may be rectangular, triangular or convex, as viewed in cross section.

Abstract: The invention relates to a heat exchanger (1) with plate structure, comprising a stack (6) of plates fitted inside a housing unit (2) assembled by welding circular heat transfer plates (10) and used as a pressure vessel. All the passages (7, 8, 26, 27) of the heat exchanger (1) are arranged to extend through an end plate (4). A flow guide (24) with the shape of the letter Z, or the like, is placed between the end plate (14) of the housing unit (2) and the end plate (14) of the stack (6) of plates.

Abstract: Heat exchange unit of the so-called multiservice type comprising a substantially cylindrical shell closed at the opposite ends by respective base plates, a plurality of heat exchangers supported inside this shell and in fluid communication with the outside thereof.

Abstract: A tube 101 is constituted by a pair of plates 111a, 111b which are fitted with each other in such a manner as to put an inner fin 101b between the plate 111a and the plate 111b. Differences in level 111c are formed on the second plate 111b, which fits inside, which differences in level each protrude inwardly by a distance equal to the thickness of the first plate 111a, whereby the outer wall surface of the tube 101 is made substantially level thereover. A gap which is formed between the outer wall surface of the tube 101 and a core plate, when the tube is passed through the core plate, can be as small as possible whereby the brazing properties can be improved.

Abstract: A flat tube cold plate assembly has a channel plate having an opening therethrough defining a flow path. A plurality of flat tubes is retained within the opening in the channel plate along the flow path. A plurality of fins extends within the interior of the flat tube. An upper cover plate and a lower cover plate are fixed over the channel plate with the flat tube disposed therein, for example, by brazing. The flat tube may be readily formed by an extrusion process. The opening in the channel plate may be readily formed by a process such as laser cutting, stamping, or etching.

Abstract: A removable surface pack-off device adapted for use in reverse cementing applications is provided. The device includes a housing adapted to be mounted between the ends of an inner casing and an outer casing at or near the surface of a well and at least one fluid passage disposed within the housing, which is adapted to pass fluid, such as cement, from a location outside of the well into an annulus formed between the inner and outer casings. It also includes a first pressure-activated seal disposed between the inner casing and the housing and a second pressure-activated seal disposed between the outer casing and the housing. The device further includes an attachment assembly, which enables the device to be easily removed from the well.

Abstract: A system and a method for installing a liner conduit in a borehole. The system includes a packer assembly, a running tool or a packer assembly and a running tool. The method uses a packer assembly and a running tool for installing a liner conduit in a borehole. The system and the method both use pressure to perform functions relating to the system and the method.

Abstract: A device for expansion and calibration of profile pipes, such as profile liners, with cylindrical threaded ends in their installation in a well. The device has a plurality of in-series connected mandrel assemblies, each of which has a housing with a central straight-through channel and inclined slots, in which rains are fastened and hinge-connected through pushers, tightened with respect to the housing, with a spring-loaded rod, accommodated in the central straight-through channel of the housing. Rods of an upper mandrel assembly are spring-loaded for holding the rams in nonoperating position, and rods of a lower assembly are spring-loaded for holding the rams in operating position. The lower mandrel assembly is provided with a choke. The Maximum diameter of a circle circumscribed about each mandrel assembly in its working position decreases from the upper assembly to the lower one.

Abstract: The present invention provides settable compositions that comprise water and cement kiln dust. The settable compositions optionally may comprise an additive that comprises at least one of the following group: fly ash; shale; slag cement; zeolite; metakaolin; and combinations thereof. The settable compositions optionally may be foamed with a gas. Methods of cementing also are provided that comprise: providing the settable composition; introducing the settable composition into a location to be cemented; and allowing the settable composition to set therein. The location to be cemented may be above ground or in a subterranean formation.

Abstract: To reduce the surveying error in a wellbore, the creation of several reference points within a borehole is carried out by physically placing borehole markers in the borehole casing, the borehole wall or in the formation itself, and providing an accurate reference of the marker locations by either storing information specific to the borehole markers inside or on the marker itself, or assigning an identification number to the marker and storing the information relating to that identification number remotely in a database. The borehole markers may contain an electronic module which includes a microcircuit, a transponder dedicated to the transmission and reception of data to/from a detector placed on a wireline tool, a drill string or a coiled tubing. The detectors may have an additional role of interrogating the electronic modules.

Abstract: A formation testing tool is described herein, including a formation probe assembly having an extendable sampling probe surrounded by a cylindrical sleeve. The sleeve is configured to engage a metal skirt having an elastomeric seal pad coupled thereto. The skirt and seal are configured to be field replaceable. The elastomeric pad has a non-planar outer surface which engages a borehole wall in preparation for formation testing. The seal pad may be donut-shaped, having an aperture through the middle of the seal pad. The seal pad and its surface may include numerous different embodiments, including having a curved profile. The seal pad may also include numerous different embodiments of means for coupling the seal pad to the metal skirt. The formation testing tool also includes formation probe assembly anti-rotation means, a deviated non-circular flowbore, and at least one closed hydraulic fluid chamber for balancing fluid pressures.

Abstract: Settable drilling fluids comprising an aqueous-based drilling fluid and cement kiln dust. Methods of cementing in a subterranean formation comprising: providing a settable drilling fluid comprising an aqueous-based drilling fluid and cement kiln dust, introducing the settable drilling fluid into a subterranean formation, and allowing the settable drilling fluid to set in the subterranean formation. Methods of converting an aqueous-based drilling fluid to a settable drilling fluid comprising: providing the aqueous-based drilling fluid, and adding cement kiln dust to the aqueous-based drilling fluid to form the settable drilling fluid. Methods of drilling a well bore and cementing a well bore comprising: drilling a well bore, circulating an aqueous-based drilling fluid in the well bore during the step of drilling the well bore, adding cement kiln dust to the aqueous-based drilling fluid to form a settable drilling fluid, and allowing the settable drilling fluid to set in the well bore.

Abstract: Method of treating a portion of a subterranean formation comprising: placing a pre-pad fluid into a portion of a subterranean formation wherein the pre-pad fluid comprises a low-viscosity aqueous tackifying composition that comprises an aqueous tackifier compound and an aqueous fluid; placing a fracturing fluid into the portion of the subterranean formation at a pressure sufficient to create or extend at least one fracture therein; and, activating the aqueous tackifier compound with an activator so as to consolidate the unconsolidated particulates.

Abstract: The present invention relates to the delivery of a plurality of chemical components in well bore applications. More particularly, this invention relates to delivery capsules and methods of using such delivery capsules for facilitating the delivery of at least a plurality of chemical components to subterranean well bores. In one embodiment, a method of supplying chemical components to a subterranean formation comprises placing a delivery capsule having at least a first chamber comprising a first chemical component and at least a second chamber comprising a second chemical component into the subterranean formation, and allowing the first and second components to be released from the delivery capsule.

Abstract: A flapper valve assembly is described having an equalizing port assembly with a bleed valve member that is moveable between an open position and a closed position. The equalizing port assembly features a structural support member in the form of a retainer key that is secured to the flapper valve member both axially and radially. Additionally, a compressible spring is located between the structural support member and provides biasing force upon the valve member to urge it toward a closed position. Additionally, the flapper valve member presents a pair of raised, substantially flat actuator contact portions upon its downstream face to meet an actuating tube in a mating contact arrangement and resist material deformation that could tend to clog or block the equalizing fluid flow port.

Abstract: A method of removing produced fluid from a well producing both gas and liquid comprises utilising produced gas flowing from a formation to power a produced liquid pump. The produced liquid from the pump and the produced gas are carried towards surface in separate fluid streams, and may be commingled closer to surface.