Abstract: Dry pond water evaporation systems and methods are used to evaporate large quantities of water from industrial waste water sources, such as water produced by oil and gas wells. Dry pond systems include a water evaporation system that emits waste water into the air as a fine spray or mist to promote evaporation. Water that falls to the ground and any initially dissolved solids are captured in a water capture depression. Water and solids are transferred from the water capture depression to a water collection pool. Water from the water collection pool is recirculated through the water evaporation system to further concentrate the total dissolved solids (TDS). When the TDS are sufficiently concentrated, they may be harvested, such as by evaporating off the water and recovering salts or minerals as a solid.

Abstract: An adjustable patio cover and storm protection device capable of remote operation which acts as a security screen that prevents access through a doorway or window to which it is coupled, reduces the amount of light able to pass through the doorway or window, and also acts as a storm barricade when in its closed or down/vertical position, and which acts as an awning or sun shade that provides shade for the area in front of the door or window to which it is coupled when it is in its open or up/horizontal position.

Abstract: A cubicle curtain (10) for use in healthcare environments, the curtain comprising a panel (20), the panel having an upper edge (14), a lower edge (16) and substantially parallel side edges (18, 20) a plurality of fold lines (26) located between the upper and lower edges, a plurality of glider members (36) mounted to the panel and extending from the upper edge, each glider member comprising an elongate member including a head adapted for location in a channel of a curtain track and wherein the panel is treated with a biocidal formulation.

Abstract: A louver includes an integral core having first and second opposed surfaces. There is a layer provided on at least a portion of at least the first surface of the core. The layer has a design pattern with a plurality of projections extending away from the core. The louver is also provided with an array of light-traversable perforations extending through the core and the layer. An assembly that has a support mountable to a frame of an opening and a plurality of louvers. The louvers are mountable relative to the support so that the louvers cover the opening. The assembly also has rotation members for rotating the louvers between a closed position and a partially open position and a fully open position. The projections combined with the perforations allow the louvers to present improved light transmission-reflection effects particularly when rotated.

Abstract: The invention relates to a stabilizing composition comprising following components (A) a polymer having following formula wherein R1 is a hydrogen atom or an alkyl group containing 1 to 12 carbon atoms, R2 is —COOM or —CH2COOM, M is a hydrogen atom, an alkali metal ion, an alkaline earth metal ion, an ammonium ion or a mixture thereof, n, m and k are molar ratios of corresponding monomers, wherein n is 0 to 0.95, m is 0.05 to 0.9, and k is 0 to 0.8, and (n+m+k) equals 1, and the weight average molecular weight is between 500 and 20,000,000 g/mol, (B) a chelating agent, (C) a poly-alpha-hydroxyacrylic acid or an alkaline salt thereof or the corresponding polylactone thereof, and (D) optionally a polycarboxylic acid polymer or an alkaline salt thereof. The invention also relates to a process for the treatment of a fiber material.

Abstract: Fibrous structures that exhibit a Dry Burst of greater than 360 g as measured according to the Dry Burst Test Method and optionally, a Total Dry Tensile of less than 2450 g/76.2 mm and/or a Machine Direction (MD) Dry Tensile of less than 1520 g/76.2 mm and/or a Geometric Mean (GM) Total Dry Tensile of less than 1180 g/76.2 mm as measured according to the Tensile Strength Test Method are provided.

Abstract: This specification is generally related to reinforced, parchmented paper, composite, reinforced parchmented paper and methods of manufacture thereof. The reinforced, parchmented paper may be used to form a sausage casing.

Abstract: The invention concerns a compound for manufacturing paper or cardboard, comprising a mixture of cellulose fibres and heat-expandable substances suited to generate closed microbubbles, in water dispersion, and wherein the mixture also contains additive substances like bonding agents, mineral fillers, coatin starches.

Abstract: The invention is directed to a method of making ultra high molecular weight diallyldialkyl ammonium salt homopolymers, compositions thereof and use of compositions as a fixative in papermaking.

Abstract: The various embodiments of the invention are connected to a radio-frequency identifier of the roll coating in a fiber web machine. The fiber web machine comprises a radio-frequency identifier (for example RFID, RFID-tag), so that the moisture content can be measured from the roll or from the roll coating of a fiber web machine.

Abstract: An apparatus for transferring a wet paper web from a press nip to a drying cylinder (52) of a papermaking machine, and for structuring the web, comprises an impermeable transfer belt (35) having a web-contacting surface, the wet paper web passing through the press nip enclosed between a press felt (33) and the transfer belt, and a permeable structuring fabric (37) for transfer of the web onto the drying cylinder, the structuring fabric having a structured surface and being arranged in a loop within which a suction transfer device (38) is disposed, said suction transfer device having a suction zone (41).

Abstract: A wet end of the machine comprises at least one vertical, self-supporting installation module (10a, 10b) to be positioned into connection with the machine which module is supported from its lower end by foundation structures of the machine construction and which extends at least to the height of a second maintenance platform (50b) of the machine, which installation module (10) includes at least valves (40) and pipes (30) related to the hydraulic and/or pneumatic actuators of the machine.

Abstract: In a method of attaching a suture to a needle barrel, a first compression stroke compresses the radially-defined top of the barrel against a suture in the bore of the barrel while restraining the bottom and sides of the barrel against deformation. A second compression stroke compresses the bottom of the barrel against the suture while restraining the sides against deformation. In another method, the top and bottom are compressed concurrently while the sides are restrained against deformation. An apparatus for attaching a suture to a needle barrel includes two die sets, each including a die with a groove therein. In one die set, the groove protects the bottom and sides of the barrel from deformation while the top is compressed. In the other die set, the groove protects the sides of the barrel from deformation while the bottom is compressed.

Abstract: The present invention relates to a casting mould for casting a casting, in particular an engine block for a combustion engine, as well as to the use of such a casting mould, comprising mould parts 1, 2, 3 and casting cores 4, 5, 6, 7 produced from moulding sand, and at least one casting core 4, 5, 6, 7 for the formation of a space in the casting. The casting mould according to the invention makes it possible, in a simple manner, for castings to be produced in which at least one locally closely confined section is formed with a microstructure which differs from the remainder of the casting. This is achieved in that a section of the casting core 4, 5, 6, 7 is formed by a chill 9 which is manufactured from a material of which the thermal conductivity is many times higher than the thermal conductivity of the other section 8 of the casting core 4, 5, 6, 7, consisting of moulding sand.

Abstract: A heat exchanging medium is provided which is constructed out of sintered diamond. The medium can be formed into various desired shapes such as tubes, mesh, screens, granules or the like. The sintered diamond forms the heat transfer medium of a heat exchanger or regenerator.

Abstract: A geothermal in-ground conduit system and a method of constructing and installing same are described. The system comprises at least one loop of flexible tubing adapted to convect a heat exchange liquid therein. The loop has a lower end section and opposed spaced-apart elongated side sections communicating with one another. The lower end section is retained in a soil penetrating head. The soil penetrating head has a leading soil penetrating and ramming face formation. A force transmitting shaft is engageable with the soil penetrating head for transmitting a pushing force against the soil penetrating head to displace same in the soil while pulling the loop and guiding the loop into the soil as the penetrating face forms passages for permanent burial of at least a major portion of the loop together with the soil penetrating head, or the soil penetrating head can be retracted.

Abstract: A data center system can include a mobile support structure; one or more enclosures for removable electronic equipment where the enclosures are housed by the support structure; a cooling system in fluid communication with the enclosures for cooling of the electronic equipment where the cooling system is housed by the support structure; and a power system operably connected to the electronic equipment and the cooling system for supplying power thereto where the power system comprises a generator housed by the support system. The mobile data center can be moved to remote locations, and the electronic equipment can be placed in communication with a network when at the remote location Other embodiments are disclosed.

Abstract: A heat dissipation fan includes a fan frame, a bearing assembly, a stator and a rotor. The fan frame includes a base and a central tube. The central tube includes an open top end and an open bottom end. The base defines a receiving concave at a bottom surface thereof. The receiving concave communicates with the central hole. A top wall is formed by the base over the concave. A sidewall is formed between the top wall and the bottom surface of the base and surrounds the concave. A plurality of first locking units extend from the top wall into the receiving concave. The bearing assembly includes an oil sealing cover for sealing the open bottom end of the central tube. The oil sealing cover includes a plurality of second locking units which are detachably interlocked with the first locking units to mount the oil sealing cover to the base.

Abstract: Embodiments of the invention include a load lock chamber, a processing system having a load lock chamber and a method for transferring substrates between atmospheric and vacuum environments. In one embodiment, the method includes maintaining a processed substrate within a transfer cavity formed in a chamber body for two venting cycles. In another embodiment, the method includes transferring a substrate from a transfer cavity to a heating cavity formed in the chamber body, and heating the substrate in the heating cavity. In another embodiment, a load lock chamber includes a chamber body having substrate support disposed in a transfer cavity. The substrate support is movable between a first elevation and a second elevation. A plurality of grooves are formed in at least one of a ceiling or floor of the transfer cavity and configured to receive at least a portion of the substrate support when located in the second elevation.

Abstract: A method and a rapper device for cleaning a heat exchange surface in a pressure vessel. The rapper device comprises a striker rod which has one end contacting the heat exchange surface in the pressure vessel and one end projecting out of the pressure vessel via a passage opening. The rapper device also comprises an impacting device for impacting the projecting end of the striker rod. A section of the striker rod is slideably supported in a pressure chamber adjacent the passage opening. The pressure chamber is connected to a sealing gas supply maintaining the pressure in the pressure chamber at a higher level than the pressure in the pressure vessel. A bellows defines a pressure chamber around at least a section of the striker rod.

Abstract: A radiator for dissipating heat by liquid coolant flowing includes a plate including at least two flat sections parallel to each other, a flection connecting the flat sections, a passage configured within the two flat sections and the flection to allow the liquid coolant to flow from a first opening to a second opening provided at each end of the two flat sections, the two flat sections opposed to each other, and the plate including a plurality of fins; an inlet tube having an opening formed so as to fit the first opening and an end opening for allowing the liquid coolant to flow in the passage; and an outlet tube having an opening so as to fit of the second opening and an end opening for allowing the liquid coolant to flow out the passage. The outlet tube is disposed in parallel with the inlet tube.

Abstract: A heat dissipation device includes a base, first and second fin units, two heat pipes, and a fan. The first fin unit is located on the base, and the second fin unit is located on the first fin unit. Each fin unit comprises a plurality of parallel fins with a plurality of channels defined therebetween. Each fin comprises an inlet section, an outlet section and a neck section interconnecting the inlet and outlet sections. A height of the neck section reduces gradually from the inlet section to the outlet section. Each heat pipe comprises an evaporating portion connecting with the base and a condensing portion inserting into a corresponding one of the outlet sections of the first and second fin units. The fan is located above the base and mounted onto the inlet sections of the first and second fin units.

Abstract: A heat spreader includes a base with a cavity defined therein and a cover mounted on the base to thereby hermetically seal the cavity of the base. A predetermined quantity of working liquid is contained in the cavity. The heat spreader further includes a first wick structure formed on an inner surface of the base, a second wick structure formed on an inner surface of the cover and a third wick structure embedded in the first wick structure. The first and second wick structures are made of metal mesh, carbon nanotube array or bundle of fibers and the third wick structure is made of sintered metal powder. In use, the third wick structure is positioned corresponding to a heat generating electronic component.

Abstract: A heat sink includes a heat spreader for absorbing heat from a heat-generating source, a tank covering on the heat spreader and hermetically engaging with the heat spreader, a first wick layer formed on an inner face of the tank, a second wick layer formed on an inner face of the heat spreader, and a supporting member located between the tank and the heat spreader. A chamber is defined between the tank and the heat spreader and contains working fluid therein. The supporting member is arranged in a wave shape and supports the first wick layer and the second wick layer.

Abstract: A thermal module includes a blower, a fin unit and a heat pipe. The blower includes a base, a cover, a sidewall between the base and the cover, and an impeller arranged among the base, the cover and the sidewall. An air outlet is defined in the sidewall of the blower. The fin unit is arranged at the air outlet. The heat pipe has a contacting plate integrally formed with one of the base and the cover of the blower. The contacting plate of the heat pipe includes a dissipating surface attaching to the fin unit, and an absorbing surface with different portions adapted for contacting with electronic components, wherein the different portions of the absorbing plate being at different levels.

Abstract: An electric machine including a housing having an outer surface and an inner surface that defines an interior portion. The housing includes a connection zone. A fluid circuit passes, at least in part, through the housing. The fluid circuit includes an inlet portion and an outlet portion. A stator assembly is arranged within the interior portion of the housing. The stator assembly includes at least one connector lead, and a terminal block extending through the housing. The terminal block includes a non-electrically conductive member that is sealed against the housing. The non-electrically conductive member includes a fluid cavity. At least one electrically conductive member is covered, at least in part, by the non-electrically conductive member. The fluid cavity guides a fluid along a portion of the at least one electrically conductive member to absorb heat.

Abstract: A heat exchanger comprises at least one tube or plate pair defining a fluid flow passage which is reduced in height across a portion of its width. A turbulizer comprising a plurality of rows of convolutions is received inside the fluid flow passage in either the low pressure drop or high pressure drop orientation. The turbulizer includes convolutions of reduced height in order to at least partially fill the reduced-height portions of the fluid flow passage and thereby reduce bypass flow. In some preferred embodiments of the invention, heat exchanger tubes or plate pairs define fluid flow passages which are reduced in height along their edges, and the turbulizer is similarly reduced in height along its edges.

Abstract: A multi-tube spraying device is provided. The multi-tube spraying device includes a body having a closed vessel, wherein a plurality of spraying tubes are disposed in the upper part of the closed vessel and a plurality of heat exchanging tubes are disposed in the lower part of the closed vessel. The device further includes an outlet pipe for discharging refrigerant vapor contained therein and a connecting pipe for introducing the refrigerant vapor from a source to the vessel. In addition, a liquid-vapor separator connected to the refrigerant source separates the refrigerant into vapor and liquid for introducing the liquid refrigerant to the spraying tubes in the vessel while introducing the refrigerant vapor into the vessel. Therefore, a heat exchange is performed between the refrigerant and the heat exchanging tubes.

Abstract: A heat exchanger use high strength aluminum alloy fin material having a high strength and excellent in thermal conductivity, erosion resistance, sag resistance, sacrificial anodization effect, and self corrosion resistance, characterized by containing Si: 0.8 to 1.4 wt %, Fe: 0.15 to 0.7 wt %, Mn: 1.5 to 3.0 wt %, and Zn: 0.5 to 2.5 wt %, limiting the Mg as an impurity to 0.05 wt % or less, and having a balance of ordinary impurities and Al in chemical composition, having a metal structure before brazing of a fibrous crystal grain structure, a tensile strength before brazing of not more than 240 MPa, a tensile strength after brazing of not less than 150 MPa, and a recrystallized grain size after brazing of 500 ?m or more.

Abstract: A regenerator core for use in a gas turbine regenerator has integral manifold openings formed in the tube plates used to make up the core and has special reinforcing elements which provide high pressure containment in critical portions of the plate-and-fin heat exchanger construction. The reinforcing elements include a series of hoops of U-shaped cross section which are used to bridge the juncture lines of the heat exchanger manifolds. An outer channel region of the hoops is provided with a reinforcing strip of gusset material. The hoops with their reinforcing strips provide structural reinforcement in the region between the manifolds and the conventional side bar reinforcing members in the central core section.

Abstract: A heat exchanger element includes partition members that include first gas passages that are passages for first gas and second gas passages that are passages for second gas and that are provided above the first gas passages, the partition members operative to partition the first gas passages and the second gas passages; spacing members that form the first gas passages and the second gas passages and that maintain a gap between the partition members; and an adhesive that adheres the partition member and the spacing member with each other. At least one of the partition member and the spacing member is made of a liquid absorbing material, and the adhesive is a water solvent adhesive in which water-soluble flame retardant is impregnated.

Abstract: The invention relates to a plastic heat exchanger (1), in particular for automotive applications, having an inlet tank (2) which has an inlet (5) for a first fluid and surrounds an inlet chamber (6), having an outlet tank (3) which has an outlet (7) for the first fluid and surrounds an outlet chamber (8), having multiple plastic tubes (4) which are tightly connected to the inlet tank (2) and to the outlet tank (3) and connect the inlet chamber (6) to the outlet chamber (8) so they communicate with one another and around which a second fluid flows during operation. To improve the heat transfer, at least some of the plastic tubes (4) have at least one longitudinal section (9) in which ring-shaped areas (13) having variable cross sections follow one another in the longitudinal direction of the tube.

Abstract: A hollow passage in a machine element for enhancing the heat exchanging properties between the machine element and a fluid flowing through the hollow passage; the hollow passage including a helicoidal groove. In some embodiments, the machine element comprises a heated machine element and the fluid comprises a coolant. In some embodiments, the machine element comprises a stator blade or a rotor blade of a gas turbine engine and the coolant comprises compressed air. In some embodiments, the helicoidal groove comprises a depression in an outer wall of the hollow passage that extends axially along the hollow passage to form a helicoidal or swirling path.

Abstract: A heat sink (2) has a base (4) having a first surface (4a) thermally connected to a heat producing body and also has fins (6a-6d) each having through-holes (8), the fins being supported by a second surface (4b) of the base (4) and arranged in a predetermined direction. The base (4) and the fins (6a-6d) are integrally formed of a porous material (lotus-type porous material). The heat sink (2) is placed in a duct (80). It is preferable that the width (W) of the heat sink (2) is substantially equal to or less than 10 mm.

Abstract: A combination heat sink formed of a stack of heat spreader sheet members is disclosed. Each heat spreader sheet member has a flat base panel two side flanges respectively perpendicularly extending along two opposite lateral sides of the flat base panel in a parallel manner, a plurality of narrow elongated notches respectively symmetrically formed on the two opposite lateral sides of the flat base panel, and a plurality of protruding positioning portions respectively formed of the side flanges in such a manner that when two heat spreader sheet members are attached together the protruding positioning portions of one heat spreader sheet member are inserted through the narrow elongated notches of the other heat spreader sheet member bent sideways and secured to the side flanges of the other heat spreader sheet member, and therefore the two stacked heat spreader sheet members are firmed secured together.

Abstract: Passive temperature control is provided to vessels too tall to be stored in a shallow, temperature-controlled tray or basin by a vertically oriented thermally-conductive tube. In one embodiment, an insulative collar covers the tray and insulates portions of the tube that extend above the top of the tray. Optional heat sinking fins and air convection holes increase heat transfer between the tube and the tray.

Abstract: Temperature control is provided to food dispensing vessels like condiment dispensers that are too tall to be stored in a shallow, temperature-controlled tray or basin by using inclined or tilted, thermally-conductive tubes placed inside a temperature-controlled tray. Thermal insulating covers improve the thermal efficiency of the tubes.

Abstract: A control system for providing thermal management of electronic equipment housed in a cabinet enclosure. The system can include a plurality of sensors in proximity to the cabinet enclosure for monitoring a temperature, a pressure and a humidity associated with the electronic equipment; and a controller in communication with the sensors for receiving data from the sensors, where the controller adjusts the temperature, the pressure and the humidity associated with the electronic equipment.

Abstract: An intelligent well system can service three or more zones that have gravel packed screens. A modular system features a screen and a surface controlled production valve on an internal blank pipe that internally straddles the screen. A gravel exit valve is disposed above the blank pipe and the blank pipe can optionally have a fluid loss control valve. A gravel pack/fracturing assembly can engage each module and close the fluid loss valve and gravel outlet valve on the way out of a module. Optionally the fluid loss valve can be eliminated if the gravel packing and fracturing string has the ability to power the production valve. The modules can be connected by wet connects as can the production string to make the intelligent well system functional from the surface.

Abstract: An annulus isolation valve comprises a valve actuation bore and a flow passage capable of providing fluid communication between an upper annulus and a lower annulus. The flow passage comprises a first flow path and a portion of the valve actuation bore. Further, the first flow path has a second longitudinal axis that is different from a first longitudinal axis. The annulus isolation valve further includes a plug gate positioned in the valve actuation bore. The plug gate is configured so that in the open position it allows fluid communication between the upper annulus and the lower annulus. The annulus isolation valve further includes a biasing mechanism positioned in the valve actuation bore. The biasing mechanism is capable of forcing the plug gate into the closed position when the actuation force is not applied.

Abstract: A subterranean well tool is provided for sealing along a section of a wall of the well and is carried on a conduit into the well. The tool is designed to be comparatively short in length to afford easier mill or drill out subsequent to the tool's useful need in the well. A plurality of anchoring elements and seal means are provided for respective anchoring and sealing engagement along the wall of the well in concert and substantially concurrently with one another when the tool is shifted to the set position. The anchoring means are sandwiched in between first and second, or upper and lower, sets of seal means.

Abstract: Vertical and/or directional drilling apparatus where compliant support air bag, magnetic or the like) is provided for a vibrational head and drive assembly that carries the drill string. With the vibrational head having a shuttle from which vibration is not directly taken and with the compliant support allowing pull back in the directional mode several advantages arise.

Abstract: The invention relates to treating of subterranean formations to increase the susceptibility (by way of chemical break down or solubilization, but not necessarily limited by these or any other theories) of large carbonaceous molecules therein, such as comprise coal, to bioconversion into methane and other useful hydrocarbon products by indigenous and/or non-indigenous microbial consortia, by introducing into the subterranean formations: (a) a solution containing at least one of an oxoacid ester of phosphorus or a thioacid ester of phosphorus; and (b) one or more other chemical compounds/chemical entities selected from the group consisting of: hydrogen, carboxylic acids, esters of carboxylic acids, salts of carboxylic acids, oxoacids of phosphorus, salts of oxoacids of phosphorus, vitamins, minerals, mineral salts, metals, and yeast extracts.

Abstract: A drilling fluid test device including a cell body having a pressurization inlet configured to allow for pressurization of the cell body, a fluid inlet configured to provide a test fluid, a filtrate outlet configured to discharge a filtrate, and a fluid outlet configured to discharge the fluid. The device also including a filter medium disposed in the cell body and a cleaning system disposed in the cell body and configured to clean the filter medium. Additionally, a method of testing a drilling fluid including injecting a drilling fluid into an automated testing cell, the automated testing cell having a filter medium. Furthermore, pressurizing the automated testing cell, forming a filter cake on the filter medium, and separating the drilling fluid into a filtrate and a residual drilling fluid. Additionally, transferring the filtrate to a filtrate collection vessel and determining a volume of filtrate in the filtrate collection vessel.

Abstract: Methods and apparatus relate to controlling location of inflow into a production well during in situ combustion. The production well includes intervals closable to the inflow at identified times. Once a combustion front from the in situ combustion passes one of the intervals, a blockage conveyed from surface into the production well forms a barrier to the inflow at the interval that has been passed by the combustion front. An example of the blockage includes a cement plug delivered through coiled tubing into the production well, which may include production tubing that defines the intervals based on at least two consecutive alternating lengths of solid wall sections and slotted or perforated sections of the production tubing.

Abstract: Sand in unconsolidated subterranean formations causes problems in oil recovery, which can be overcome by a method of consolidating sand in a subterranean formation, which method comprises: (i) contacting said sand in a first location in the presence of water with a slurry in a liquid medium of cement of average particle size less than 10 microns to produce in said medium a mixture comprising sand, water and some of the cement, and a remainder comprising the rest of the cement, (ii) preferably separating from said location said remainder from said mixture, (iii) which mixture is allowed to set to give permeable consolidated sand.

Abstract: A system having a sealing assembly for a gravel port in a gravel pack apparatus. The sealing assembly includes a sealing element around an outer circumference of the gravel pack assembly above the gravel pack and below the gravel port. The sealing element is on the outside housing of the gravel pack apparatus or on a separate piece of equipment located above the gravel pack and below the gravel port, permitting a larger flow bore through the gravel pack apparatus. The sealing element may be selectively actuated after the gravel pack operation has concluded, thus maintaining the gravel pack in the desired location. The removal of a gravel pack tool may permit the sealing element to be actuated.

Abstract: The invention is related to the methods of well sanding prevention, particularly to the technologies of gravel pack making, and may be used for underground formations treatment, particularly for the operations to prevent sand inrush from the oil formation into the well. The sanding prevention method includes placement of the gravel pack in the well where polydicyclopentadiene material is used as the gravel pack. The method enables better sand and fines filtration through a denser and more uniform distribution of the gravel pack as polydicyclopentadiene material, its high thermal stability and high crushing strength.

Abstract: A method associated with the production of hydrocarbons is described. The method includes drilling a wellbore using a drilling fluid, conditioning the drilling fluid, running a production string in the wellbore and gravel packing an interval of the wellbore with a carrier fluid. The production string includes a joint assembly comprising a main body portion having primary and secondary fluid flow paths, wherein the main body portion is attached to a load sleeve assembly at one end and a torque sleeve assembly at the opposite end, the load sleeve assembly having at least one transport conduit and at least one packing conduit disposed therethrough. The main body portion may include a sand control device, a packer, or other well tool for use in a downhole environment.

Abstract: The present invention pertains to a dry cement formulation for cementing earth boreholes, in particular oil, gas and/or terrestrial heat boreholes, containing a) about 20 to 99.9 wt. % cement, b) about 0 to 65 wt. % powdered quartz/or quartz dust, c) about 0.1 to 30 wt. % water-redispersible dispersion powder, and d) about 0 to 20 wt. % further additives. Furthermore, the invention pertains to the use of the dry cement formulation for preparing a cement slurry as well as to the use of water-redispersible dispersion powders in a cement slurry for cementing earth boreholes, wherein the cement slurries can be used for reducing the water loss of the cement slurry, for reducing the gas and/or water penetration and/or for sealing off the gas and/or water channels by means of the cement slurry which has been introduced into the borehole and has set.