Abstract: A process and system for applying a liner to an inner surface of a pipeline uses an “inversion” technique to apply the liner. This involves arranging the liner into everted and non-everted portions and driving the non-everted portion through the pipeline such that it everts and is applied to the inner surface of the pipeline. At least first and second pipeline vehicles are used to drive the non-everted portion of the liner through the pipeline.

Abstract: An energy storage device, especially a super capacitor, useful for high temperature applications has current collector elements supporting a carbonaceous matrix modified or doped with pseudo-capacitive materials, including one or more transition metal dichalcogenides, transition metal oxides and mixtures thereof, in contact with a non-aqueous electrolyte composition whereby it is possible to exploit the faradic mechanism in addition to the electric double layer mechanism as an energy storage principle.

Abstract: A detection system includes a drill bit where electro-acoustic transducers operate as a transmitter and/or receiver, are integrated; electronic circuits; a control unit associated with a data storage unit and is powered by an electrical supply system, the processing and control unit for generating driving signals sent to the electro-acoustic transducer acting as a transmitter by the analogue driving electronic circuits, for acquiring signals received from the transducer and for processing the received signals to determine discontinuity interfaces and/or anomalies in pore pressures in geological formations; wherein each of the electro-acoustic transducers is in contact with a pressurised fluid and includes: a tubular body with two end portions opposed to each other longitudinally, internally a first chamber ending with the first end portion and a second chamber on one side adjacent and in fluid communication with the first chamber and, on the other side ending with the second end portion.

Abstract: A new class of multifunctional tracers has been synthesised for use in the oil industry, specifically during waterflooding operations. They are used either in a traditional way (i.e., mapping the connections of oilfield selections) or to provide information on important physical-chemical parameters (such as oil content, temperature and rock permeability) useful for optimizing the oilfield management and subsequent improvement/increase in oil extraction. The multifunctional tracers have a polymer chain having a plurality of units different from one another and recurring along the chain and having respective specific functionalities.

Abstract: Tubular structures for use in a subsea environment and a method of manufacturing the same are provided. These composite tubular structures can be used in the oil and gas industry, for example, as production risers.

Abstract: A turbine current generator includes a hollow bearing cylinder to be engaged inside a pipe or duct for the transit of a fluid, in particular a fluid transit duct deriving from the drilling or exploration of an oil field; a hollow rotating cylinder rotatably and coaxially engaged inside the bearing cylinder and defining a respective transit cylindrical chamber for a fluid. The bearing and rotating cylinders defining at least a cylindrical gap; one or more magnetic or electromagnetic components (6)-operatively engaged to the bearing cylinder and/or to the rotating cylinder to generate at least one electric current during the rotation of the rotating cylinder inside the bearing cylinder; an impeller or impellers arranged in the chamber of the rotating cylinder according to positions aligned along a longitudinal axis of the latter, the impellers engaged inside the rotating cylinder to rotate integrally with the latter upon the action of a fluid.

Abstract: An electro-acoustic transducer includes a tubular body extending a longitudinal direction and having two end portions, opposing each other longitudinally, and internally having a first chamber, sending with the first end portion and a second chamber, on one side adjacent to and in fluidic communication with the first chamber and on the other side ending with the second end portion. The first end portion is closed towards the outside by a membrane applied to the tubular body. The second end portion has openings that put it in fluidic communication to the outside of the tubular body. The first chamber containing electrical windings arranged in succession to each other in the longitudinal direction. The second chamber is filled with a liquid. A movable element is housed in the first chamber and has a permanent magnets packaged and arranged one above the other, with the magnetization alternating and separated.

Abstract: A detection system includes a drill bit where electro-acoustic transducers operate as a transmitter and/or receiver, are integrated; electronic circuits; a control unit associated with a data storage unit and is powered by an electrical supply system, the processing and control unit for generating driving signals sent to the electro-acoustic transducer acting as a transmitter by the analogue driving electronic circuits, for acquiring signals received from the transducer and for processing the received signals to determine discontinuity interfaces and/or anomalies in pore pressures in geological formations; wherein each of the electro-acoustic transducers is in contact with a pressurised fluid and includes: a tubular body with two end portions opposed to each other longitudinally, internally a first chamber with the first end portion and a second chamber on one side adjacent and in fluid communication with the first chamber and, on the other side ending with the second end portion.

Abstract: An electro-acoustic transducer includes a tubular body extending a longitudinal direction and having two end portions, opposing each other longitudinally, and internally having a first chamber, sending with the first end portion and a second chamber, on one side adjacent to and in fluidic communication with the first chamber and on the other side ending with the second end portion. The first end portion is closed towards the outside by a membrane applied to the tubular body. The second end portion has openings that put it in fluidic communication to the outside of the tubular body. The first chamber containing electrical windings arranged in succession to each other in the longitudinal direction. The second chamber is filled with a liquid. A movable element is housed in the first chamber and has a permanent magnets packaged and arranged one above the other, with the magnetization alternating and separated.

Abstract: Tubular structures for use in a subsea environment and a method of manufacturing the same are provided. These composite tubular structures can be used in the oil and gas industry, for example, as production risers.

Abstract: An energy storage device, especially a super capacitor, useful for high temperature applications has current collector elements supporting a carbonaceous matrix modified or doped with pseudo-capacitive materials, including one or more transition metal dichalcogenides, transition metal oxides and mixtures thereof, in contact with a non-aqueous electrolyte composition whereby it is possible to exploit the faradic mechanism in addition to the electric double layer mechanism as an energy storage principle.

Abstract: A fluid for controlling the permeability of a subterranean formation having an aqueous solution of at least one thermo-responsive polymer with block structure A-B-A?, wherein A and A?, the same as or different from one another, each represent a thermo-responsive oligomer group, and B is an oligomer group having n repeat units, the same as or different from one another. At least one of the repeat units has a solubility of the corresponding monomer, in water at 20° C., equal to or greater than 120 g/l, and n is a whole number within the range 30-1000. The fluid is also used in a method for controlling the permeability of a subterranean formation.

Abstract: The present invention relates to a device and a method for the implementation of a flexible tubular structure made of reformable composite material, designed for passing from a first folded configuration to a second longitudinally developed operating configuration using a tapered profile slidingly engageable inside the tubular structure.

Abstract: The present invention relates to a device and a method for the implementation of a flexible tubular structure made of reformable composite material, designed for passing from a first folded configuration to a second longitudinally developed operating configuration using a tapered profile slidingly engageable inside the tubular structure.

Abstract: Process for preventing the formation of hydrates in fluids containing gas or gas condensate, which comprises subjecting said fluids to electromagnetic waves operating in the visible and infrared spectrum region, comprised in the ? band from equal to greater than 500 nm to less than 1 mm (from greater than 300 GHz to less than or equal to 600 THz), reducing or preventing the formation of hydrates.

Abstract: The present invention relates to a method and to a device for in situ underwater detection of physicochemical parameters in a body of water with a particular focus on using the acquired data for prospecting for potential reservoirs rich in hydrocarbons. The present invention provides a method for in situ real-time underwater detection of physicochemical and optionally biological parameters in a body of water by using an instrumented detection carrier. The present invention secondly provides an underwater instrumented detection carrier for in situ real-time detection of physicochemical parameters in a body of water comprising an autonomous underwater vehicle (AUV) arranged to use an instrumented module (or “payload”), capable of completing programmed missions without human intervention and configured to carry out the method provided by the invention.

Abstract: 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 (1) 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 (1), subjecting said fluid to one or more of the following processes through plants installed onboard the same vehicle (1): 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.

Abstract: An underwater vehicle for transporting extraction fluids, for example natural gas, oil or water, has an overall elongated form and includes one or more containment tubes configured to contain the fluid to be transported and forming a bundle that prevalently extends longitudinally with respect to the underwater vehicle, making the vehicle structurally more robust and intrinsically safe.

Abstract: 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 (1) 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 (1), subjecting said fluid to one or more of the following processes through plants installed onboard the same vehicle (1): 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.

Abstract: Composition of water-based drilling fluids characterized in that they comprise an oil in water emulsion.