Abstract: A method and apparatus for treating for disposal oil-contaminated clay substrates such as drill cuttings from drilling with an oil-based mud. If necessary, the substrate is pretreated with an aqueous emulsion breaker such as alkylbenzenesulfonic acid. The substrate is mixed under high shear conditions with a mineral acid such as sulfuric acid. This can be done in an agitated reactor with sequential addition of the organic and inorganic acids. The substrate is then mixed with alkaline earth such as lime in a second agitated reactor. The reactions between the acid(s), alkaline earth and substrate are exothermic and provide heat to vaporize the oil, reaction products and water. Recoverable constituents in the vapor can be condensed in a vapor collection system. The treated substrate is essentially free of oil and has a controlled water content.

Abstract: A method and apparatus for treating for disposal oil-contaminated clay substrates such as drill cuttings from drilling with an oil-based mud. If necessary, the substrate is pretreated with an aqueous emulsion breaker such as alkylbenzenesulfonic acid. The substrate is mixed under high shear conditions with a mineral acid such as sulfuric acid. This can be done in an agitated reactor with sequential addition of the organic and inorganic acids. The substrate is then mixed with alkaline earth such as lime in a second agitated reactor. The reactions between the acid(s), alkaline earth and substrate are exothermic and provide heat to vaporize the oil, reaction products and water. Recoverable constituents in the vapor can be condensed in a vapor collection system. The treated substrate is essentially free of oil and has a controlled water content.

Abstract: A method and apparatus for treating for disposal oil-contaminated clay substrates such as drill cuttings from drilling with an oil-based mud. If necessary, the substrate is pretreated with an aqueous emulsion breaker such as alkylbenzenesulfonic acid. The substrate is mixed under high shear conditions with a mineral acid such as sulfuric acid. This can be done in an agitated reactor with sequential addition of the organic and inorganic acids. The substrate is then mixed with alkaline earth such as lime in a second agitated reactor. The reactions between the acid(s), alkaline earth and substrate are exothermic and provide heat to vaporize the oil, reaction products and water. Recoverable constituents in the vapor can be condensed in a vapor collection system. The treated substrate is essentially free of oil and has a controlled water content.

Abstract: Ink feeding circuit device for a raster drawing machine comprising an ink jet printing head 1 moving in x and y direction over the drawing plane 20 of the drawing machine 10 and comprising a feed circuit including an ink supply reservoir 2 connected with the ink jet printing head 1 by a conduit 31 which communicates with a gas damper 9.

Abstract: A method and apparatus for treating for disposal oil-contaminated clay substrates such as drill cuttings from drilling with an oil-based mud. If necessary, the substrate is pretreated with an aqueous emulsion breaker such as alkylbenzenesulfonic acid. The substrate is mixed under high shear conditions with a mineral acid such as sulfuric acid. This can be done in an agitated reactor with sequential addition of the organic and inorganic acids. The substrate is then mixed with alkaline earth such as lime in a second agitated reactor. The reactions between the acid(s), alkaline earth and substrate are exothermic and provide heat to vaporize the oil, reaction products and water. Recoverable constituents in the vapor can be condensed in a vapor collection system. The treated substrate is essentially free of oil and has a controlled water content.

Abstract: A raster-type drawing machine (plotter), automatically controlled from a controller, which consists in a tubular structure of rigid elements that join and support the elements of feeding, printing, advancement, and collection of sheet material. The sheet-paper-collection and feeding modules are formed by a set of rollers and disks that support the sheet material. The controlled one-way movement of the sheet material in the direction X is carried out through two rollers whose length is much smaller than the width of the material to be printed. The machine includes guides fixed to its structure through which a carriage set carrying the print heads moves according to axis Y.

Abstract: A flexible pipe and a method of manufacturing same according to which the pipe is formed by multiple layers of different materials and suitable for use in subsea and land-based applications.

Abstract: The flat bed raster drawing machine is controlled automatically, includes a flat table to bear a flexible material, such as paper, fixed guides on which a carriage moves perpendicular to the lengthwise axis of the flexible material between the aforementioned guides, and a second carriage bearing the pin printer array type head that moves over the preceding one, in the direction of the lengthwise axis of the paper. The paper is moved in a controlled manner on the table parallel to its lengthwise axis.

Abstract: Ink feeding circuit device for a raster drawing machine comprising an ink jet printing head 1 moving in x and y direction over the drawing plane 20 of the drawing machine 10 and comprising a feed circuit including an ink supply reservoir 2 connected with the ink jet printing head 1 by a conduit 31 which communicates with a gas damper 9.