Patent application number | Description | Published |
20090078328 | Pipe Interior Coatings - Pipe useful for downhole and transport of hydrocarbon fuel such as oil and/or natural gas is provided that has a non-stick coating adhered to the pipe interior surface, said coating being at least about 50 μm thick and comprising at least two layers constituting an inner layer and an outer layer adhered to one another, each said layers containing polymer binder and fluoropolymer and being at least about 15 μm thick, the weight proportion of said polymer binder to said fluoropolymer in said inner layer and in said outer layer but being effective to maintain adhesion between said layers during pressurization and decompression upon said non-stick coating being exposed to the Autoclave Test and the proportion of said fluoropolymer in said inner layer and said outer layer being effective to protect said interior surface during exposure of said non-stick coating to the Acid Soak Test. | 03-26-2009 |
20090265913 | Coated Pipes for Harsh Environments - The present invention relates to a pipe, especially an oil pipe, having a lining comprising a fluoropolymer adhered to its interior surface and a lining formed on its exterior surface. The interior and/or exterior lining may comprise a primer layer comprising a fluoropolymer, and preferably a perfluoropolymer and an overcoat or a preformed film adhered to the primer layer. Either the overcoat or the preformed liner also comprises a fluoropolymer, and preferably a perfluoropolymer. The surface of the lining facing the flowable media, such as oil, may be a pure perfluoropolymer to provide a particularly good non-stick surface for the oil. | 10-29-2009 |
20090266437 | Coated Pipes for Conveying Oil - The present invention relates to an oil pipe having a lining imparting substantially reduced adhesion of asphaltenes, paraffin wax, and inorganic scale, so as to reduce plugging of said oil pipe, and impermeability to salt water so as to protect the oil pipe from corrosion. | 10-29-2009 |
20090272479 | Coated Pipes for Conveying Oil - The present invention relates to an oil pipe having a lining imparting substantially reduced adhesion of asphaltenes, paraffin wax, and inorganic scale, so as to reduce plugging of said oil pipe, and impermeability to salt water so as to protect the oil pipe from corrosion. | 11-05-2009 |
20100043885 | Lined Vessels for Conveying Chemicals - The present invention relates to a vessel, in particular a pipe, especially an oil pipe, having a preformed film adhered onto the interior surface of the pipe, the interior surface of the preformed film reducing the deposition of at least one of asphaltenes, paraffin wax, and inorganic scale by at least 40% as compared to the interior surface of said oil pipe without said preformed film being present. In a preferred embodiment, the preformed film is adhered to the interior surface of the pipe with a primer layer with an optional barrier layer between the primer layer and the preformed film. | 02-25-2010 |
20100043905 | Lined Pipes for Conveying Chemicals - The present invention relates to a vessel, in particular a pipe, especially an oil pipe, having a preformed film adhered onto the interior surface of the pipe, the interior surface of the preformed film reducing the deposition of at least one of asphaltenes, paraffin wax, and inorganic scale by at least 40% as compared to the interior surface of said oil pipe without said preformed film being present. In a preferred embodiment, the preformed film is adhered to the interior surface of the pipe with a primer layer with an optional barrier layer between the primer layer and the preformed film. | 02-25-2010 |
20110041924 | System of Pipes for Use in Oil Wells - The present invention relates to the process of a system of pipes that convey any flowable medium, such as chemicals, food and in particular, oil and gas, and more particularly to a system of pipes having different coatings or linings for the interior and exterior surfaces of such pipes, depending on the environment in which the pipes are used. The pipes may be coated with different materials, which may be of different thicknesses, with various configurations of coatings or linings. Such coating may be done on the interior and/or the exterior of the pipes. | 02-24-2011 |
20110139451 | Process for Treating Water in Heavy Oil Production Using Coated Heat Exchange Units - The invention relates to a process for treating a water stream produced in the recovery of heavy oil from geological formations comprising. The process includes a) injecting steam underground into a geological formation containing hydrocarbons and establishing a steam chamber; b) transferring heat from the steam chamber to the formation and mobilizing hydrocarbons for extraction from the formation; c) extracting the mobilized hydrocarbons from the formation and the hydrocarbons forming an emulsion with a portion of condensed water formed from the steam; d) separating mobilized hydrocarbons as a heavy oil product from the hydrocarbon-water emulsion to produce a water stream containing foulants that include residual hydrocarbons and solids; e) passing the water stream through a heat exchange unit comprising at least one tube wherein said the tube has a multi-layer coating comprising a melt flowable copolymer of tetrafluoroethylene adhered to the interior surface or exterior surface of said the tube; and f) removing said foulants from the water stream while altering the temperature of the water stream as the water stream passes through the heat exchange unit; wherein the multi-layer coating provides an anti-stick surface that reduces the deposition of foulants, on the interior or exterior surface of the tube as compared to the surface of the tube without the multi-layer coating being present, so as to avoid loss of efficiency in heat transfer and pluggage of the heat exchange unit. | 06-16-2011 |
20110293920 | Fluoropolymer Non-Stick Coatings - A coating composition is provided comprising | 12-01-2011 |
20120241086 | LINED PIPES FOR CONVEYING CHEMICALS - The present invention relates to a vessel, in particular a pipe, especially an oil pipe, having a preformed film adhered onto the interior surface of the pipe, the interior surface of the preformed film reducing the deposition of at least one of asphaltenes, paraffin wax, and inorganic scale by at least 40% as compared to the interior surface of said oil pipe without said preformed film being present. In a preferred embodiment, the preformed film is adhered to the interior surface of the pipe with a primer layer with an optional barrier layer between the primer layer and the preformed film. | 09-27-2012 |
20130160887 | Coated Pipes for Conveying Oil - The present invention relates to an oil pipe having a lining imparting substantially reduced adhesion of asphaltenes, paraffin wax, and inorganic scale, so as to reduce plugging of said oil pipe, and impermeability to salt water so as to protect the oil pipe from corrosion. | 06-27-2013 |
20150024193 | Fluoropolymer Non-Stick Coatings - A coating composition is provided comprising | 01-22-2015 |