Tecnomare S.p.a.

Techocompositi S.p.a.

Alessio Nista

Stefano Carminati

Claudio Maria Molaschi

Alberto Maliardi

Martino Vecchio

Domenico Spirito

Michael Trimming

Claudio Molaschi

A safety valve assembly for extradition of hydrocarbons includes a valve body including a passage duct, configured to be traversed by a production and/or drilling line. The valve body includes housings for a punch and counter-punch, arranged diametrically opposite to one another with a common longitudinal axis substantially perpendicular to the longitudinal axis of the valve. The punch slides linearly in a controlled manner in the housing along the axis which intersects the longitudinal axis of the pipe, and the counter-punch slides linearly in a controlled manner in the housing along the axis which intersects the longitudinal axis of the pipe. The punch and counter-punch are configured to allow the counter-punch to slidingly receive the punch in its interior to create two different shearing planes. The counter-punch includes a hollow part to slidingly receive the section of tubular material and the punch, in the linear movement during the shearing operation.

Valve assembly and control method for extraction wells under emergency conditions

The process according to the invention, for transporting extraction fluids, such as, for example, natural gas, oil or water, comprises the following operations: (a) hydraulically connecting the underwater vehicle () to the head of an extraction well; (b) transferring and storing the extracted fluid, such as, for example, natural gas, oil or water, on the vehicle (), subjecting said fluid to one or more of the following processes through plants installed onboard the same vehicle (): b.1) mechanical, electrical or chemical separation; b.2) separation of the gases or more volatile fractions of the extracted fluid; b.3) separation of predetermined phases or substances from the rest of the extracted fluid; b.4) extraction and elimination of acid gases, such as, for example, carbon dioxide or hydrogen sulphide; b.5) re-injection into geological formations; (c) transporting the extracted fluid(s) subjected to one or more of the processes b.1-b.5) causing the underwater vehicle to advance in immersion.

Process for transporting extraction fluids such as for example natural gas, oil or water, and underwater vehicle for effecting said process

Flexible column for offshore applications made from a composite material consisting or consisting essentially of a thermosetting resin reinforced with natural, artificial or synthetic fibers.

Flexible column from composite material

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Spinea, Italy

Alessio Nista