1
Arthur H Hartog, J Ernest Brown, John Mervyn Cook, Jonathan Elphick, Paul S Hammond, Ashley Bernard Johnson: Systems and methods for distributed interferometric acoustic monitoring. Schlumberger Technology Corporation, James McAleenan, Helene Raybaud, Brigid Laffey, May 24, 2011: US07946341 (56 worldwide citation)

Acoustic monitoring of a conduit, a wellbore or a reservoir associated with hydrocarbon production or transportation and/or carbon dioxide sequestration is carried out using a fibre optic cable extending along or appurtenant to it as a distributed interferometer. Coherent Raleigh noise generated by ...


2
Michael David Prange, Peter Gerhard Tilke, Clinton Dane Chapman, Darren Lee Acklestad: Geometrical optimization of multi-well trajectories. Schlumberger Technology Corporation, Helene Raybaud, James McAleenan, Brigid Laffey, March 23, 2010: US07684929 (40 worldwide citation)

A novel method is presented to automatically design a multi-well development plan given a set of previously interpreted subsurface targets. This method identifies the optimal plan by minimizing the total cost as a function of existing and required new platforms, the number of wells, and the drilling ...


3
Jahir Alfonso Pabon: Systems and methods for reducing backward whirling while drilling. Schlumberger Technology Corporation, Brigid Laffey, Helene Raybaud, June 21, 2011: US07963347 (31 worldwide citation)

According to the invention, a system for drilling a cavity in a medium is disclosed. The system may include a bottom hole assembly. The bottom hole assembly may include a first longitudinal segment and at least one drill bit. The first longitudinal segment may include a first length of chassis havin ...


4
Kuo Chiang Chen, Geoff Downton: Morphable bit. Schlumberger Technology Corporation, Brigid Laffey, Vincent Loccisano, James McAleenan, November 23, 2010: US07836975 (28 worldwide citation)

A bottom hole assembly for drilling a cavity including a chassis configured to rotate is provided. The chassis may include a conduit, a circuit, a pressure transfer device, a plurality of pistons, a plurality of valves, and a plurality of cutters. The conduit may accept a first flow of a primary flu ...


5
Stein Inge Pedersen: Image feature extraction. Schlumberger Technology Corporation, Rachel Greene, Brigid Laffey, November 8, 2011: US08055026 (25 worldwide citation)

A method of extracting desired features from a cellular image including the steps of: (a) selecting an initial cell within the image; (b) selecting an additional cell, near the initial cell, appearing to be associated with a desired feature; (c) repeating step (b) for further cells, near at least on ...


6
Vincent Ernst: Modulator for circular induction accelerator. Schlumberger Technology Corporation, James McAleenan, Vincent Loccisano, Brigid Laffey, April 19, 2011: US07928672 (23 worldwide citation)

Described herein is a modulator circuit for generating discrete energy pulses in a device. The circuit includes a high voltage power source intermittently coupled to a saturable first inductor, a second inductor and a capacitor coupled in parallel between the high voltage power source and the satura ...


7
Kuo Chiang Chen, Jahir A Pabon, Partha Ganguly, Murat Ocalan, Julio C Guerrero, Kevin J Forbes: Harvesting energy from flowing fluid. Schlumberger Technology Corporation, Brigid Laffey, James McAleenan, July 14, 2009: US07560856 (21 worldwide citation)

Electrical energy is produced at a remote or close site by converting kinetic energy from fluid flow with membranes that generates electrical energy in response to deformation by the fluid flow passing though a piezo electric medium attached to the deforming membranes. Sets of membranes define varia ...


8
Julio C Guerrero, Jahir A Pabon, Francois M Auzerais, Kuo Chiang Chen, Kevin J Forbes: Harvesting energy in remote locations. Schlumberger Technology Corporation, Brigid Laffey, Vincent Loccisano, James McAleenan, March 15, 2011: US07906861 (18 worldwide citation)

Electrical energy is produced at a remote site by converting kinetic energy from the environment. The kinetic energy may include vibrations and flow of fluid. In some embodiments the kinetic energy causes magnets to move with respect to coils in order to produce electrical energy. An anchor holds th ...


9
Cheng Gang Xie, Yan Kuhn de Chizelle, Jacques Jundt: Systems and methods for measuring multiphase flow in a hydrocarbon transporting pipeline. Schlumberger Technology Corporation, Vincent Loccisano, James McAleenan, Brigid Laffey, March 22, 2011: US07908930 (18 worldwide citation)

This disclosure relates in general to methods and systems for measuring multiphase flows in a pipeline using a combination of venturi, microwave and radiation techniques, where the pipeline is configured to transport hydrocarbons. More specifically, but not by way of limitation, certain embodiments ...


10
Carlos Abad, Kay Robinson, Trevor Hughes: Degradable polymers for wellbore fluids and processes. Schlumberger Technology Corporation, Vincent Loccisano, James McAleenan, Brigid Laffey, December 28, 2010: US07858561 (17 worldwide citation)

A viscosifying agent for wellbore fluids is described including a polymer polymerized using at least two pre-polymers “A” and “B”, the polymer being capable of essentially fully degrading into soluble fragments after the initiation of a breaking process.