31
Felix Freimann: System and method for information filtering. Open TV, Madan Mossman & Sriram P C, August 5, 2003: US06604243 (77 worldwide citation)

According to an embodiment of the present invention, a fast matching algorithm uses a memory space efficient data structure to accomplish information filtering in a system receiving information, such as a set top box used in conjunction with a television set. The data structure, according to an embo ...


32
Martin Townley Evans: Apparatus and method for wellbore resistivity determination and imaging using capacitive coupling. Baker Hughes Incorporated, Madan Mossman & Sriram P C, July 29, 2003: US06600321 (77 worldwide citation)

An apparatus for obtaining resistivity images of a borehole having an oil-based mud includes a rotating measure electrode on a measurement-while-drilling apparatus. A modulated measure current is capacitively coupled to the formation through the nonconducting mud. The electrode may be carried on a s ...


33
Volker Krueger, Matthias Meister, John M Michaels, Jaedong Lee, Stanley C Jones: Closed-loop drawdown apparatus and method for in-situ analysis of formation fluids. Baker Hughes Incorporated, Madan Mossman & Sriram P C, August 26, 2003: US06609568 (74 worldwide citation)

An apparatus and method capable of incrementally decreasing the borehole pressure at a variable rate by controlling a test volume within the borehole. The system includes an incrementally controllable pump, closed loop feedback and a controller for drawing down the pressure of a test volume to a lev ...


34
Nils Reimers, John W Harrell, James V Leggett III, Paulo S Tubel: Method of obtaining improved geophysical information about earth formations. Baker Hughes Incorporated, Madan Mossman & Sriram P C, April 3, 2001: US06209640 (72 worldwide citation)

The present invention provides a method for forming wellbores. In one method, one or more wellbores are drilled along preplanned paths based in part upon seismic surveys performed from the surface. An acoustic transmitter conveyed in such wellbores transmits acoustic signals at a one or more frequen ...


35
Paul R Hart, Edward M Maharajh: Process for extracting bitumen. Baker Hughes Incorporated, Madan Mossman & Sriram P C, April 15, 2008: US07357857 (71 worldwide citation)

Bitumen extraction done using a process comprising: (a) preparing a bitumen froth comprising particulate mineral solids and hydrocarbons dispersed in aqueous lamella in the form of an emulsion; (b) adding a sufficient amount of a paraffinic solvent to the froth to induce inversion of the emulsion an ...


36
Jaedong Lee, John M Michaels, Volker Krueger, Matthias Meister, Per Erik Berger: Formation testing while drilling apparatus with axially and spirally mounted ports. Baker Hughes Incorporated, Madan Mossman & Sriram P C, July 1, 2003: US06585045 (70 worldwide citation)

An apparatus and method for determining permeability of a subterranean formation is provided. The apparatus and method comprise a work string, at least one selectively extendable member mounted on the work string to isolate a portion of the annular space between the work string and borehole. A prede ...


37
Loran D Ambs, Duncan Riley: Submarine deployed ocean bottom seismic system. WesternGeco, Madan Mossman & Sriram P C, November 5, 2002: US06474254 (70 worldwide citation)

A method and vehicle to deploy and retrieve seismic apparatus to and from the ocean bottom and to acquire data from the seismic apparatus. Submersible robotic vessels deploy and retrieve the seismic apparatus to the ocean bottom to depths of up to 5,000 meters. The vessel can separate from the seism ...


38
Robbert Jasper de Kok: Method for acquiring and processing of data from two or more simultaneously fired sources. Westerngeco L L C, David S Figatner, Madan Mossman & Sriram P C, April 8, 2003: US06545944 (69 worldwide citation)

A method of seismic surveying and seismic data processing using a plurality of simultaneously recorded seismic-energy sources. An activation sequence for each of said plurality of seismic energy sources may be determined such that energy from seismic sources may be recorded simultaneously and seismi ...


39
Gary Arthur Sitton: Westerngeco L L C, David S Figatner, Madan Mossman & Sriram P C, February 18, 2003: US06522974 (68 worldwide citation)

A process for analyzing, decomposing, synthesizing and extracting seismic signal components, such as the fundamental of a pilot sweep or its harmonics, from seismic data uses a set of basis functions. The basis functions may be any of the harmonics or other components derived from the pilot sweep. T ...


40
Colin M Bennett, Loran D Ambs, Mark Zajac: Method and apparatus for controlling and optimizing seismic data acquisition. Westerngeco L L C, David S Figatner, Madan Mossman & Sriram P C, July 8, 2003: US06590831 (66 worldwide citation)

A system and method for coordinating the operation of multiple manned, remotely operated or autonomous marine vessels engaged in marine seismic data acquisition to direct cooperating vessels from one point to the next while minimizing deviations in the desired spatial configuration of assets, risk t ...