Patent application number | Description | Published |
20090141585 | Turbulent device to prevent phase separation - A mixer for use in a transmission pipeline and a wellbore fluids pipeline having a mixing device. The pipeline extends from a well head to a processing facility. The mixer perturbs the flow into a non-laminar state. Mixer embodiments include a body having a cone shaped leading edge and a hemi-spherical end. Other embodiments include a double cone having a series of helical fins on the trailing end of the double cone and fins extending perpendicular to the pipeline axis having a triangular cross section. The fins may be staggered with a mix of vertically and horizontally orientations. | 06-04-2009 |
20090242178 | Raised overlapped impingement plate - A heat exchanger for transfer of heat from a first fluid to a second fluid, including: a housing defining an interior space, a plurality of tubes spaced apart from each other, fixed in the housing, and extending in a first direction within the interior space, a first inlet for receiving the first fluid into and through the tubes, and first outlet for discharging the first fluid out of the tubes, a second inlet for receiving the second fluid into the interior space in an inlet flow direction generally transverse of the first direction, and a second outlet for discharging the second fluid out of the interior space, and an impingement plate assembly situated in the interior space of the housing between the second inlet means and the plurality of tubes, with a fouling area defined as the area in the interior space that includes portions of the tubes directly beneath said impingement plate assembly, the impingement plate assembly including: (a) a top plate facing the second inlet, where the top plate lies in a plane generally transverse to the inlet flow direction and onto which the second fluid flow impinges, and (b) a bottom plate fixedly spaced from and generally parallel to and overlying the top plate, the bottom plate defining therethrough an aperture extending from top to bottom thereof. | 10-01-2009 |
20110240278 | Plug Kit for Pressured Components - An apparatus for plugging a bore of a tube sheet, the apparatus includes cantilevered members that project radially outward from a body on the inner surface of the tube sheet. Slots can be drilled into a tube the projects into the bore and the cantilevered members set into the slots. The cantilevered members can slide radially outward from within the body, or can be pivotingly attached on an end of the body. One end of a bolt threadingly attaches to the body, and attaches on its other end to a nut circumscribing the tube sheet bore on its outer surface. A deformable collar circumscribes the bolt between the body and nut and provides a seal within the tube sheet bore. The apparatus can also be used to plug bores that do not include tubes. | 10-06-2011 |
20120298340 | TURBULENCE-INDUCING DEVICES FOR TUBULAR HEAT EXCHANGERS - A heat exchanger tube for conveying a heat transfer fluid, into which one or more turbulence-inducing elements of prescribed configuration(s) are fixedly positioned on a supporting member extending in spaced relation along the central axis of the tube, for the purpose of inducing turbulence in the heat transfer fluids and to minimize or prevent fouling inner surface of the tube to thereby enhance or maintain the heat transfer coefficient over the operational life of the tube. | 11-29-2012 |
20130312794 | CLEANING APPARATUS FOR HEAT EXCHANGE TUBES OF AIR COOLED HEAT EXCHANGERS - An apparatus, operable with a source of cleaning fluid under pressure, for cleaning external surfaces of heat exchange tubes of an air cooled heat exchanger which tubes are situated in generally horizontal rows vertically separated from each other, thus defining a generally horizontal zone between each two adjacent rows, including
| 11-28-2013 |
Patent application number | Description | Published |
20110240272 | ASSEMBLY FOR PLUGGING A TUBE - A device and method for plugging a tube that includes setting a tapered plug in a tube with a compression ring that circumscribes the plug. The ring radially expands when axially compressed and wedges the plug in the tube. An anchoring assembly fits over the tapered end of the plug and is coupled to the plug while being pushed against the compressed ring. When coupled to the plug, the anchoring assembly maintains the ring in a compressed state. The anchoring assembly can be made up of legs that fasten to the tapered end of the plug and have shoulders attached on a free end that are positioned against a lateral side of the compressed ring. | 10-06-2011 |
20120138268 | Combined Cooling of Lube/Seal Oil and Sample Coolers - A heat exchanger that is useful for analyzing samples, such as condensate, and methods of cooling a sample for analysis are provided as embodiments of the present invention. The heat exchanger includes an inner tube for containing cooling water and an annulus for containing steam so that heat exchange occurs between the cooling water and the steam so that condensate forms in the annulus. An external shield is attached to the heat exchanger to provide additional natural cooling and to prevent users from contacting the steam contained within the annulus. | 06-07-2012 |
20140326280 | CLEANING APPARATUS FOR HEAT EXHANGE TUBES OF AIR COOLED HEAT EXCHANGERS - A spray mat for spraying cleaning fluid under pressure onto the outer surfaces of heat exchange tubes that extend in rows in a heat exchanger, the rows of tubes being spaced apart from each other with a generally planar space defined between each two adjacent rows, the spray mat formed of a plurality of spray strips, each spray strip including: (a) a base part having upper and lower surfaces, (b) a fluid inlet, (c) a plurality of spray nozzles spaced apart and secured on the upper and lower surfaces, and (d) a duct system for fluid coupling the fluid inlet to the spray nozzles, each spray strip is bendably and fluid coupled to the next forming a flexible spray mat which is positionable into and removable out of selected ones of the planar spaces between each two adjacent rows of the heat exchange tubes. | 11-06-2014 |
Patent application number | Description | Published |
20150300142 | Method For Enhanced Fracture Cleanup Using Redox Treatment - A method for improved hydrocarbon recovery from a formation due to cleanup of a residual viscous material is provided. The method comprising the steps of fracturing the formation with a fracturing fluid to generate fractures, the fracturing fluid comprising a viscous fluid component operable to fracture the formation leaving behind residual viscous material in the fractures, the viscous fluid having a viscosity; a proppant component comprising a proppant, the proppant operable to hold open the fractures, wherein the proppant component is carried to the fractures by the viscous fluid component; and a cleanup fluid, the cleanup fluid comprising: an acid precursor operable to trigger an exothermic reaction component, and the exothermic reaction component operable to generate heat, where the generated heat is operable to reduce a viscosity of the residual viscous material to create a reduced viscosity material operable to flow from the formation. | 10-22-2015 |
20150300143 | Chemically-Induced Pulsed Fracturing Method - A method of increasing a stimulated reservoir volume in a wellbore in a gas-containing formation includes the steps of mixing an exothermic reaction component to achieve a pre-selected solution pH, the exothermic reaction component is operable to react at a wellbore temperature to generate a pressure pulse, mixing the exothermic reaction component with a viscous fluid component operable to fracture the gas-containing formation to create fractures, and a proppant component, the proppant component carried to the fractures by the viscous fluid, the proppant component comprises a proppant operable to hold open the fractures, to form a fracturing fluid, injecting the fracturing fluid into the wellbore in the gas-containing formation to create fractures, and generating the pressure pulse when the exothermic reaction component reaches the wellbore temperature, the pressure pulse operable to create auxiliary fractures, wherein the auxiliary fractures create a fracture network, the fracture network increases the stimulated reservoir volume. | 10-22-2015 |
Patent application number | Description | Published |
20110253341 | AUXILIARY SUPPORTS FOR HEAT EXCHANGER TUBES - A method of manufacturing or modifying a tube set for a bundled tube heat exchanger, and corresponding apparatus, is provided. An elongated support member is attached to baffles in a heat exchanger. The elongated support member has opposed contoured tube-contacting surfaces and face contact surfaces. The opposed contoured tube-contacting surfaces receive, in close-fitting relation, the exterior surface of a portion of adjacent rows of tubes passing through baffle apertures. The elongated support member is positioned so that its face contact surface is adjacent to a face surface of the baffle, and the opposed contoured tube-contacting surfaces are adjacent to the exterior surfaces of the plurality of tubes. The elongated support member is attached, e.g., by welding, to the face surface of the baffle, in a manner that does not interfere with the operation of the heat exchanger. | 10-20-2011 |
20140263337 | CENTRALLY THREADED PLUG FOR HEAT EXCHANGER TUBE AND REMOVAL TOOL - A tube plug insertable in one end of a heat exchange tube, the tube plug formed as an shaft having a distal part and an opposite proximal part which terminates in a proximal end with an threaded hole extending axially in the proximal end in the distal direction, and a plug removal tool having a proximal handle part and a distal stem part which has external threads that match threads in the threaded hole in the plug's shaft, the stem part being threadedly insertable into the threaded hole in the proximal end of the tube plug, whereby rotation of the stem will urge the tube plug to rotate relative to the heat exchange tube and break free from being lodged in the bore thereof. | 09-18-2014 |
Patent application number | Description | Published |
20110226455 | Slotted impingement plates for heat exchangers - Impingement plates for shell and tube heat exchangers are positioned between the inlet openings and the tubes with the surfaces of the impingement plates being normal to the flow path of the liquid entering the shell from the inlet openings and having a plurality of openings through which a portion of the liquid passes before contacting the tubes. The openings can be formed as elongated parallel slots that are positioned parallel to the tubes and function to enhance the fluid flow, especially in the area that is immediately downstream from the impingement plates, thereby reducing fluid stagnation, fouling and tube erosion and prolonging the useful life and time in service between maintenance shut downs. | 09-22-2011 |
20120118547 | TUBE PLUG FOR A HEAT EXCHANGER TUBE - A tube plug adapted to be driven into and then plug an open end of a heat exchange tube that extends transversely through and is secured in a tubesheet of a heat exchanger, where the tube plug includes an elongated shaft having a lead part adapted to be introduced into the open end of the heat exchange tube and an opposite rear part, and a fluid seal situated on the lead part, the seal including a set of lead and rear ring flanges fixed to the lead part, extending radially outward therefrom, and axially spaced apart from each other, and a compressible and resilient ring-shaped gasket adapted to encircle the lead part of the shaft when situated axially between the ring flanges. | 05-17-2012 |
20130140012 | HEADER FOR AIR COOLED HEAT EXCHANGER - A header for an air cooled heat exchanger is provided. The header includes a housing having top and bottom walls and side walls and an inlet and an outlet, one of said side walls being a tube wall for connection to a plurality of heat exchanger tubes. The header includes a partition wall between the top and bottom walls defining upper and lower regions, the partition being a sheet having a higher central area which extends downward to corners of the upper region. Each corner has a drain aperture for fluid in the upper region to drain by gravity out of the upper region. | 06-06-2013 |
Patent application number | Description | Published |
20090221769 | Method for the preparation of linera alpha-olefins and reactor system therefor with improved disposal of high molecular weight oligomers - The present invention relates to a method for processing high molecular weight oligomer waste products formed during the production of linear alpha-olefins by oligomerization of ethylene in a reactor in the presence of a solvent and a catalyst, characterized in that the high molecular weight oligomers are separated in a separation unit from a product stream of the reactor comprising the solvent, the catalyst, linear alpha-olefins and high molecular weight oligomers having a solidification temperature in the range of about 60-100° C., then diluted with a dilution medium and heated to about 130° C. to about 200° C., the diluted high molecular weight oligomers are then transferred to a disposal device, wherein at least some of the dilution medium may be recovered and recycled for addition to the dilution medium. | 09-03-2009 |
20110046429 | Method for preparing linear alpha-olefins - The present invention relates to a method for preparing linear alpha-olefins (LAO) by oligomerization of ethylene in the presence of solvent and homogenous catalyst, comprising the steps of: (i) feeding ethylene, solvent and catalyst into an oligomerization reactor, (ii) oligomerizing the ethylene in the reactor, (iii) removing a reactor outlet stream comprising solvent, linear alpha-olefins, ethylene, and catalyst from the reactor via a reactor outlet piping system, (iv) transferring the reactor outlet stream to a catalyst deactivation and removal step, and (v) deactivating and removing the catalyst from the reactor outlet stream, characterized in that at least one organic amine is added into the oligomerization reactor and/or into the reactor outlet piping system. | 02-24-2011 |