Abstract: A device for laser drilling, having: (a) a laser module (310), having a plurality of laser subsystems (200), each one of the laser subsystems (200) having an active optical fiber (240), wound in a shape of hollow coil and packaged inside a hollow cylindrical box (210), and at least one diode laser (220) mechanically connected perpendicularly to the hollow cylindrical box (210) and optically coupled to the core of the active optical fiber (240) wound and packaged inside the hollow cylindrical box (210), the laser module (310) having a tubular shape allowing cooling and drilling fluids to flow through the concentric hollow cores of the tubular laser module (310) and of the cylindrical box (210); and (b) an optical drill head (100), the optical drill head having an end (130) with orifices (110 and 120), and a body (140).

Abstract: A device for laser drilling, having: (a) a laser module (310), having a plurality of laser subsystems (200), each one of the laser subsystems (200) having an active optical fiber (240), wound in a shape of hollow coil and packaged inside a hollow cylindrical box (210), and at least one diode laser (220) mechanically connected perpendicularly to the hollow cylindrical box (210) and optically coupled to the core of the active optical fiber (240) wound and packaged inside the hollow cylindrical box (210), the laser module (310) having a tubular shape allowing cooling and drilling fluids to flow through the concentric hollow cores of the tubular laser module (310) and of the cylindrical box (210); and (b) an optical drill head (100), the optical drill head having an end (130) with orifices (110 and 120), and a body (140).

Abstract: A laser drilling system (100) for drilling rocks, soil and engineering materials with the aid of high-intensity laser light is described, which comprises an optical drill (104) for supplying laser light for the drilling of said materials provided with sensors (106); a control and operations center (101) comprising computer and supervising software with integrated logic; a cooling and debris withdrawal system (105) an energy source (102); an energy conductor (103) provided with sensors (107) and laser systems (201) for emitting high-intensity laser light and optical fibers (123) for conducting the so-generated laser light, so that the information collected by sensors (106), (107) supply said control and operations center (101) and said control and operations center (101) determines improved operation conditions of the optical drill (104) for the drilling of said solid materials or mixtures of solid and liquid materials relative to state-of-the-art drilling systems.

Abstract: Equipment for laser-drilling having an optical component or feed module with a set of lasers, the active optical fiber, in the form of hollow coil, the excitation of the laser active medium made through the coupling of the light emitted by laser diodes inside the active fiber, and a mechanical component that is an optic drill bit with a hollow rigid body and an end of any geometry, the drill bit having leaky orifices for the optical fibers connection or bundle of optical fibers with drill bit walls and orifices to allow the drilling and cooling fluids are released in the surface to be drilled, the optical fibers being provided from the feed module. The feed module generates high intensity light generation that through optical fibers is guided to the optic drill bit. The feed module and the optic drill bit are coupled to a drill string.

Abstract: A laser drilling system (100) for drilling rocks, soil and engineering materials with the aid of high-intensity laser light is described, which comprises an optical drill (104) for supplying laser light for the drilling of said materials provided with sensors (106); a control and operations center (101) comprising computer and supervising software with integrated logic; a cooling and debris withdrawal system (105) an energy source (102); an energy conductor (103) provided with sensors (107) and laser systems (201) for emitting high-intensity laser light and optical fibers (123) for conducting the so-generated laser light, so that the information collected by sensors (106), (107) supply said control and operations center (101) and said control and operations center (101) determines improved operation conditions of the optical drill (104) for the drilling of said solid materials or mixtures of solid and liquid materials relative to state-of-the-art drilling systems.

Abstract: Fiber optic position transducer that includes a magnetic or electromagnetic element, one or more segments of magnetostrictive material, Fiber Bragg Grating Sensors, a rod of material that is impenetrable to magnetic fields, optical fiber. One or more of the sensors is fixed upon a segment of magnetostrictive material, which is fixed to a rod, and may only be displaced longitudinally. The Fiber Bragg Grating Sensors have different wave lengths and are made of the same optical fiber. The magnetic or electromagnetic element included may be made of NdFeB (Neodymium Iron Boron) or metal alloys of TbDyFe (Terbium, Dysprosium and Iron), such as TX, Terphenol-D and others. It is applied to a control flow valve in an oil well, and it also refers to the calibration process of the position of the transducer.

Abstract: Fiber optic position transducer that includes a magnetic or electromagnetic element, one or more segments of magnetostrictive material, Fiber Bragg Grating Sensors, a rod of material that is impenetrable to magnetic fields, optical fiber. One or more of the sensors is fixed upon a segment of magnetostrictive material, which is fixed to a rod, and may only be displaced longitudinally. The Fiber Bragg Grating Sensors have different wave lengths and are made of the same optical fiber. The magnetic or electromagnetic element included may be made of NdFeB (Neodymium Iron Boron) or metal alloys of TbDyFe (Terbium, Dysprosium and Iron), such as TX, Terphenol-D and others. It is applied to a control flow valve in an oil well, and it also refers to the calibration process of the position of the transducer.

Abstract: An optical transducer 100, 200 and method for the simultaneous measurement of downhole pressure and temperature in a single- or multi-point configuration including a body 10a/10b with an elastic membrane 50 onto which at least one Bragg grating 60a/60b is attached, and at least an additional Bragg grating 60b/60a contained on the same optical fiber 30. The elastic membrane 50 conveys strain proportional to the pressure and temperature conditions to which is submitted said transducer to at least one Bragg grating 60a/60b, the portion of light not reflected by the Bragg gratings 60a, 60b continues along the remaining of the optical fiber 30.

Abstract: A fiber optics differential pressure transducer (100, 200, 300, 400) containing Bragg networks (118), said transducer being used to measure the differential pressure in a Venturi installed inside a pipe (1), through which a fluid like oil is displaced. The transducer comprises a body (110, 230, 360, 410) of different geometries and a diaphragm (2), at least one Bragg network (118) being attached on each of the surfaces of the same. The diaphragm (2) is placed parallel or transversal to the transducer's body (100, 200, 300, 400). The transducer (200) is isolated from the process fluid by flexible mechanical seals (201) which transmit the pressure up to surfaces of the diaphragm (2). The transducer (300, 400) is provided with two relief microvalves for the purpose of protecting the sensor [diaphragms (2)] in overpressure events.

Abstract: An optical fiber pH sensor 100, 200, 300 is described, where a transducer mechanically couples a Bragg grating to a pH-sensitive hydrogel, said sensor comprising a central part 110, 210, 301 where are placed the optical fiber 121 containing a Bragg grating 122, the pH-sensitive hydrogel set of discs 130, and the mechanical transducer which is a spring 123 a beam 215 or still the optical fiber itself 121, the mechanical transducer assuring the strain on the Bragg grating 122. The change in hydrogel hydrodynamic volume resulting from a change of the pH of the medium introduces a force that is sufficient to cause a strain in the Bragg grating. The measure of the pH change is retrieved using the usual techniques for wavelength measurement. The pH sensor 100, 200, 300 of the invention is useful for the indirect evaluation and control of corrosion in petroleum wells and is suitable for multiplexing with other optical fiber sensors measuring the same or different parameters.