Weatherford Technology Holdings, LLC

Weatherford Canada Partnership

Other

Weatherford Canada Ltd.

Lxdata Inc.

Andre R Vincelette

Paul Lefebvre

Christopher S Baldwin

Domino Taverner

Jason Scott Kiddy

John Niemczuk

John B Niemczuk

James R Dunphy

Hongbo Li

Bai Zhou

Corneliu V Ducra

Remi Charbonneau

Jason S Kiddy

Methods and apparatus to control the acoustic properties of optical cables used as in-well oil and gas probes for acoustic monitoring, such as distributed acoustic sensing (DAS). One example aspect provides a solid path for the acoustic wave to propagate from an outside armor layer of the cable to the sensing optical waveguide embedded therein. Another example aspect offers ways to spatially dispose the optical sensing elements to create response delays indicative of the propagation speed and/or direction of an acoustic wave. Yet another example aspect provides ways to utilize additional spectral interrogation to increase ultimate spatial resolution. Yet another example aspect provides ways to locally vary the acoustic properties along the length of the cable.

Acoustically enhanced optical cables

A sensor arrangement using an optical fiber and methodologies for performing an analysis of a subterranean formation, such as a subterranean formation containing a hydrocarbon based fluid. The sensor arrangement may be used to measure one or more physical parameters, such as temperature and/or pressure, at a multiplicity of locations in the subterranean reservoir. The sensor arrangement may comprise a sensor array comprising an elongated outer casing for insertion in the subterranean formation and into a fluid in the subterranean formation. The sensor array may comprise an optical fiber defining an optical path that links one or more temperature sensors and one or more pressure sensors and transports measurement data generated by the temperature and pressure sensors. A data processing system may be connected to the sensor array to receive measurements from the sensor array and to compute one or more values of a property of an extraction installation operating on the subterranean formation.

Pressure sensor arrangement using an optical fiber and methodologies for performing an analysis of a subterranean formation

Mechanical acoustic actuators and methods for using these actuators to generate controlled acoustic signals to measure silent or quiet parameters are provided. One example method includes using fluid flows (whistle) and/or mechanical shocks between solids (bells) to stimulate the actuators, either proportionally from the parameter targeted for measurement or artificially modulated to create emitters. Some aspects provide for usage of the actuators within an oil and gas well or a fluid conduit, including in combination with arrays of acoustic sensors, to perform sonar array processing monitoring of acoustic wave propagation to derive properties of the media traversed.

Transducers and acoustic emitters for fiber-optic-based acoustic sensing

A system for generating virtual objects, including personalized avatars. The system comprises modules for acquiring a plurality of series of bi-dimensional images, deriving point clouds and point cloud three-dimensional models therefrom and generating a global point cloud three-dimensional model by computing a weighted average.

Systems and methods to create a virtual object or avatar

An optical fiber cable for installation in a subterranean formation, where the temperature could be in excess of 150 degrees C. The optical fiber cable has an outer metallic jacket defining an elongated conduit with an internal elongated channel that receives an optical fiber. The optical fiber has two strands joined by a splice. A splice protector has a body with a passageway receiving the splice. The body has an outer region configured to be joined by a fusion weld to the outer metallic jacket.

Fiber optic splice protector for harsh environments

A method for measuring a physical parameter at a plurality of spaced locations in a subterranean formation using a temperature sensor that has an elongated sensing element having a length of at least 10 m, measured at a temperature of 20&#xb0; C. The elongated sensing element includes an elongated jacket and an optical fiber mounted in the jacket and having an EFL of at least 0.35%, wherein the elongated sensing element has an average temperature error of less than 2&#xb0; C.

Temperature sensor using an optical fiber

Growing community of inventors

Deux-Montagnes, Canada

Andre R Vincelette