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AssigneeNone recorded
InventorAdrian Andreani
Estimating the term…
The process comprises a first step selecting a sufficient amount of hollow microspheres, deleting those broken or deformed; a third step discharging the selected hollow microspheres into an extruder and mixing them with the components of a plastic material, and a fourth step wherein the mixture is directed to a nozzle connected to an extrusion head and is hot extruded over a tube or portion of tube to be coated. The insulating coating layer applied has a thermal conductivity coefficient lower than 0.13 W/m°K under high hydrostatic pressure conditions.
Process for obtaining an insulating coating having a reduced K coefficient under high hydrostatic pressure conditions, wherein the insulating coating includes at least a plastic material and hollow microspheres and the process comprises a second step of incorporating the components of said plastic material into an extruder, characterized by comprising a first step for selecting the hollow microspheres deleting those broken or deformed;
Dependencies are inferred from the claim text.
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Processes for applying liquids or other fluent materials: performed by applying the liquid or other fluent material from an outlet device in…
Arrangements for the insulation of pipes or pipe systems: pre-insulated pipes
Tubes: applying the material on the exterior of the tube
Inorganic fillers: used for non-pigmentation effect
Term end not estimated
The instant invention relates to a process for obtaining an insulating coating having a reduced K coefficient under high hydrostatic pressure conditions; a method for applying such coating to a tube and the tube obtained thereby.
In order to put the instant invention into practice, a precise description of a preferred embodiment is included in the specification that follows. The specification refers to the accompanying drawings which show merely an example of the invention, the forming elements of which may be selected among equivalent elements without departing from the spirit and scope of this application.
It is known that fluids required for generating electric power, such as gas and oil, are removed from fields, which in some cases are under water layers which make extraction difficult.
In the above FIGURE the same reference symbols indicate the same or corresponding parts, wherein 1 designates a discharge port; 2 designates a bin; 3 designates an extruder; 4 designates an inlet conduit and 5 designates an extrusion head.
Number 6 designates a nozzle; number 7 an insulating coating layer and number 8 a tube or pipe.
The invention basically relates to a process for obtaining an insulating coating having a reduced K coefficient under high hydrostatic pressure conditions; to a method of applying such coating over a tube and to the tube obtained thereby; wherein the process includes the steps of controlling the hollow microspheres to eliminate broken or deformed spheres; incorporating into an extruder the required components to obtain a plastic material; incorporating into the extruder a sufficient amount of undamaged hollow microspheres and hot forming a strip, which is directly applied over the tube, forming a layer of said plastic material mixed with said undamaged hollow microspheres.
Operation
The mentioned sequence of steps will be now complemented with the functional and operative relationship therebetween and the result obtained.