Schlumberger Technology Corporation

Humanetics Innovative Solutions, Inc.

Fibercore Limited

Onesubsea IP UK Limited

Sensor Highway Limited

Services Petroliers Schlumberger

Schlumberger Holdings Limited

Prad Research and Development Limited

Oliver C. Mullins

Robert J. Schroeder

Tsutomu Yamate

Rogerio T. Ramos

Rogerio Tadeu Ramos

Robert J Schroeder

Oliver Clinton Mullins

Jeffrey A Tarvin

Raghu Madhavan

Julian J Pop

Li Jiang

Christopher Harrison

Kosta Ladavac

Timothy Gareth John Jones

Bhavani Raghuraman

Ronald E G Van Hal

Jimmy Lawrence

Gale Hyslip Gustavson

Scott A Rubinstein

Simon H Bittleston

Angus J Melbourne

Harini Varadarajan

Arthur H Hartog

Xu Wu

Jagdish H Shah

Albert Ballard Andrews

Gareth P Lees

Eric Udd

Kenneth E Stephenson

Damon Richard Roberts

Edmund J Fordham

Nigel D Leggett

Christopher Emslie

Philip Dryden

Joseph P Varkey

David Randolph Smith

Nathan Scott Lawrence

Timothy Gareth Jones

Stephane Vannuffelen

Vladimir Vaynshteyn

Ian D Bryant

Willem Albert Wijnberg

Masafumi Fukuhara

Steven Antony Gahlings

Ian Atkinson

George Albert Brown

Cliff Evans

Elizabeth B Dussan V

Yuehua Chen

William F Murphy

Christian Besson

Andrew Strong

Andrew Hunt

A Ballard Andrews

Olivier Sindt

David J Wilkinson

Vladimir Hernandez-Solis

Franck Monmont

Andrew J Reischer

Mark William Dalton

Richard W Gaylor

Hanpu Liang

Stephen J Kimminau

Bernard Elie Theron

Barry Read

Stephen Mullens

Ian Peirce

Stephen C Balkunas

Vladimir Hernandez Solis

Yamid Pico

Stephanie Marie-Odile Montillet

Christine Jarvis

Wen Rong Li

Peter Coupe

Dmitry Belov

Evgeniya Myalo Deger

Christian Jean Marcel Chouzenoux

David R Smith

Stephen Kimminau

Gale H Gustavson

Ronald EG Van Hal

A shape sensing system for an anthropomorphic test device is disclosed that includes a plurality of body parts and at least one optical fiber that has a plurality of cores in a spaced and parallel relationship with one another that extend between ends of the optical fiber for sensing positions of the body parts. Each of the cores have a plurality of grating sensors disposed along a length thereof capable of determining a position and orientation of the body parts.

Shape sensing system and method for anthropomorphic test devices

An optical fiber system for a body part of an anthropomorphic test device is disclosed that includes at least one body part and at least one optical fiber that has a plurality of cores in a spaced and helical relationship with one another that extend between ends of the optical fiber for sensing positions of the at least one body part. Each of the cores have a plurality of grating sensors disposed along a length thereof capable of determining a position and orientation of the body part.

Optical fiber system having helical core structure for detecting forces during a collision test

A composite optical fiber is provided for permitting sensing of multiple parameters. The optical fiber is for incorporation into a sensing system, the optical fiber comprising: a single mode optical fiber core, a multimode optical fiber core, and an optical fiber cladding layer surrounding the single mode optical fiber core and the multimode optical fiber core. The optical fiber provided preferably enables multiple sensing and/or measurements to take place at a single location and at a single time.

Composite single-mode/multimode optical fiber

A bulk material drilling system is described, the drilling system arranged to allow accurate directional control of a drill bit through bulk material via non-mechanical means, while providing real-time feedback on drill bit positioning. A drilling system () comprising; a bulk material drill bit () having; a sensing portion (), one or more ports () for discharging output energy, the drilling system further comprising; an input portion () arranged to detect input parameters from the sensing portion, a controller () arranged to control output energy to the port; wherein the controller is further arranged to determine one or more ports to which the output energy is provided; wherein the controller is further arranged to control the discharge of the output energy; wherein the output energy discharge is non-uniformly applied to bulk material; wherein the discharge of the output energy is used to control the drill bit direction. The invention aims to prevent mechanical wear while providing effective steering of a drill bit through bulk material.

Drilling system

A Li/CFx primary battery having a lithium-based anode and a fluorinated carbon cathode. The fluorinated carbon cathode includes fluorinated carbon nanoparticles. The structure and size distribution of the carbon precursor carbon nanotubes are configured to provide improved battery performance. The fluorinated carbon nanoparticles can be formed by fluorinating carbon nanoparticles using a fluorine-based reactive gas at a temperature in the range from 300 to 600&#xb0; C., and the fluorinated carbon nanoparticles can further be used to form the cathode of the primary battery. Producing the Li/CFx primary batter can also include heating the fluorinated carbon nanoparticles under an inert atmosphere before the fluorinated carbon nanoparticles are used to form the cathode of the primary battery.

Methods of producing a lithium carbon fluoride primary battery

A terminal end-attachment device () for a flexible pipe () comprising an attachment body () adapted to receive a terminal end of a flexible pipe () and to couple the said flexible pipe to a hydrocarbon production installation structure. The device () further comprising a strain sensor () coupled to a sensor carrier (), at least part of the sensor carrier () and the strain sensor () being at least partially incorporated within the attachment body (). A method of manufacturing a terminal end-attachment device () for a flexible pipe () is also provided.

Flexible pipe terminal end-attachment device

A system and method are provided for detecting fluid invasion of an annular space in a pipe structure. The system includes a thermal element and a temperature sensing element placed in the vicinity of each other in the annular space of the pipe structure. A thermal signal is generated by the thermal element. The temperature sensing element is connected to a monitor that monitors and processes the thermal signal. As the thermal signal changes when conducted through different types of fluids, the invasion of an annular space by seawater that normally contains oil or gas may be reliably detected.

Method and system for detection of fluid invasion in an annular space of flexible pipe

A telemetry apparatus and method for communicating data from a down-hole location through a borehole to the surface is described including a light source, an optical fiber being placed along the length of the wellbore and receiving light from the light source, a transducer located such as to produce a force field (e.g. a magnetic field) across the optical fiber and its protective hull without mechanical penetration of the hull at the down-hole location, one or more sensors for measuring down-hole conditions and/or parameters, a controller to provide a modulated signal to the magnetic field generator, said modulated signal being under operating conditions representative of measurements by the one or more sensors, and an optical detector adapted to detect changes in the light intensity or polarization of light passing through the fiber.

Borehole telemetry system

A system and method are provided for determining wall thickness of a structure such as a metallic pressurized pipe. The system includes an optical fiber having a plurality of Fiber Bragg Gratings (FBGs), and a mounting for securing the FBGs over discrete portions of the exterior surface of the pipe such that strain in the pressurized pipe wall is transmitted to the FBGs. The system further includes a light source and a light sensor coupled to an end of the optical fiber. The light sensor converts light reflected back from the FBGs into electrical signals that a digital processor converts into strain measurements. The FBGs are mounted around portions of the pipe expected to have significant metal loss as well as portions of the pipe expected to have negligible metal loss. The method includes at least one of comparing relative strains at locations with negligible metal loss to those with significant metal loss to accurately determine the thickness of the wall with metal loss; compensating for temperature effects by considering relative strains at areas of the pipe with and without metal loss; and measuring axial strain on the pipe with one or more of the FBGs to correct for at least one of bending and torsion effects on hoop strain.

System and method for uniform and localized wall thickness measurement using fiber optic sensors

A system and method for detecting breakage, rupture or malfunctioning of a pipe or cable structure, including sensing elements for monitoring the structure and placed in, on or around the structure for monitoring the breakage, rupture or malfunctioning of the structure. The sensing elements provide sensing data regarding events related to breakage, rupture or malfunctioning and are placed near the structure so as to perform a breakage, rupture or malfunction detection function, and within a distance sufficient to obtain a measureable strain, tension, torsion, vibration, acceleration, and/or temperature response signal based on the breakage, rupture or malfunctioning of the structure. One of the sensing elements is based on Coherent Rayleigh Noise (CRN) sensing techniques, and the system is configured to interpret the sensed data for determining the breakage, rupture or malfunctioning of the structure.

System and method for detection of flexible pipe armor wire ruptures

Methods and related apparatuses and mixtures are described for detecting hydrogen sulfide in a formation fluid downhole. A detection mixture is combined with the formation fluid downhole. The detection mixture includes metal ions for reacting with hydrogen sulfide forming a metal sulfide, and charged nanoparticles sized so as to inhibit significant aggregation of the metal sulfide so as to enable spectroscopic detection of the metal sulfide downhole. The combined mixture and formation fluid is then spectroscopically interrogated so as to detect the presence of the metal sulfide thereby indicating the presence of hydrogen sulfide in the formation fluid. The mixture also includes chelating ligands for sustaining thermal endurance of the mixture under downhole conditions.

Downhole spectroscopic hydrogen sulfide detection

A leak detection system and method is provided for a structure having a first barrier to a first fluid and a second barrier to a second fluid, the first barrier and the second barrier defining a space therebetween. The system includes at least one sensor, such as a fiber optic sensor, placed in the space and configured to detect presence of the first fluid or the second fluid in the space due to a fluid leak in the first barrier or the second barrier. The fiber optic sensor may further be configured to measure one or more characteristics of an acoustic emission caused by the leak, and the system and method may be able to estimate the orifice diameter of the fluid leak based on the measured one or more characteristics, and to calculate a leak rate based on the estimated orifice diameter.

Method and system for estimating fluid leak flow rates using distributed optical fiber sensors

A system and method to log a wellbore, comprising a logging tool adapted to be deployed in a wellbore environment, the logging tool including at least one sensor for taking a measurement of the wellbore environment. The sensor is a fiber optic sensor and the system includes a fiber optic line in optical communication with the sensor. The data measured by the sensor is transmitted through the fiber optic line on a real time basis to the surface, where the data is processed into a real time display. In one embodiment, the fiber optic sensor is a passive sensor not requiring electrical or battery power. In another embodiment, a continuous tube with one end at the earth's surface and the other end in the wellbore is attached to the logging tool and includes the fiber optic line disposed therein.

Casing collar locator and method for locating casing collars

A technique usable with a well includes disposing a retractable line in a conduit having an open end located above a region of interest in the well. The retractable line comprises a sensing portion that, when the line is deployed, extends from the open end of the conduit and into the region of interest. Information observed by the sensing portion in the region of interest is communicated to the surface. When further well operations are to be performed in the region of interest, the retractable line is retracted until the sensing portion is located above the region of interest and below the surface. After the well operation is completed, the retractable line may be re-deployed such that the sensing portion again extends through the open end of the conduit and into the region of interest to continue observing characteristics associated with the well.

Retractable sensor system and technique

Growing community of inventors

Eastleigh, United Kingdom

Rogerio Tadeu Ramos