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| Number | Title | Issue Date |
| 7164990 | Method of determining fluid flow A method of determining fluid flow in a volume containing two or more fluid components, including determining a pressure field for the volume. One or more streamlines are determined from the pressure field, and the fluid composition is solved for the fluid compositi... | 01/16/2007 |
| 7069148 | Gas reservoir evaluation and assessment tool method and apparatus and program storage device A Gas Reservoir Evaluation and Assessment Tool utilizes an Analytical Engine to produce predictions of pressure values and other production data at any point in space and at any point in time in a reservoir. A computer system, such as a workstation, stores a Gas Res... | 06/27/2006 |
| 6980940 | Intergrated reservoir optimization A method of managing a fluid or gas reservoir is disclosed which assimilates diverse data having different acquisition time scales and spatial scales of coverage for iteratively producing a reservoir development plan that is used for optimizing an overall performanc... | 12/27/2005 |
| 6266620 | Detection of ground roll cone The present invention relates to a method to detect areas of acquired seismic data that contain ground roll. The method according to the invention allows the detection of ground roll cone on the basis of an estimate of the local ground roll velocity or ev... | 07/24/2001 |
| 6240370 | Method of processing seismic data signals A method is disclosed for characterizing the subsurface levels of the Earth with a greater degree of accuracy than hitherto. Seismic data samples are migrated and stacked, for example according to known techniques and then spectrum analyzed. The spectrum ... | 05/29/2001 |
| 6230101 | Simulation method and apparatus A Linear Solver method and apparatus, embodied in a Simulator and adapted for solving systems of non-linear partial differential equations and systems of linear equations representing physical characteristics of an oil and/or gas reservoir, includes recei... | 05/08/2001 |
| 6226595 | Method and apparatus using multi-target tracking to analyze borehole images and produce sets of tracks and dip data A Tracking Dip Estimator software including a novel Multi-Sine Tracking Software is adapted to be stored in a computer system memory for instructing a processor to produce a "first output" including a plurality of tracks in response to input borehole imag... | 05/01/2001 |
| 6216627 | Seismic survey vessels A seismic survey vessel having a displacement monohull is provided with a streamer deck which width increases progressively from amidships towards the stern of the vessel, on both sides of the centerline of the vessel. This increased width of the streamer... | 04/17/2001 |
| 6106561 | Simulation gridding method and apparatus including a structured areal gridder adapted for use by a reservoir simulator A Flogrid Simulation Gridding Program includes a Flogrid structured gridder. The structured gridder includes a structured areal gridder and a block gridder. The structured areal gridder will build an areal grid on an uppermost horizon of an earth formatio... | 08/22/2000 |
| 6078869 | Method and apparatus for generating more accurate earth formation grid cell property information for use by a simulator to display more accurate simulation results of the formation near a wellbore A Petragrid method and apparatus generates grid cell property information that is adapted for use by a computer simulation apparatus. An interpretation workstation includes at least two software programs stored therein: a first program called "Petragrid" ... | 06/20/2000 |
| 6018497 | Method and apparatus for generating more accurate earth formation grid cell property information for use by a simulator to display more accurate simulation results of the formation near a wellbore A Petragrid method and apparatus generates grid cell property information that is adapted for use by a computer simulation apparatus which simulates properties of an earth formation located near one or more wellbores. An interpretation workstation include... | 01/25/2000 |
| 6016287 | Apparatus and method for accurately determining the location of events such as peaks in seismic data An operator sitting at a workstation views, on a display, a multitude of seismic traces having one or more horizons indicated therein by a plurality of sets of events (such as peaks or troughs or zero crossings) on the seismic traces. The operator uses a ... | 01/18/2000 |
| 6012017 | Interpreting formation tops Formation tops correlation is interpreted between sampled log curves by a weighted combination of covariance, the ratio of standard deviation, and the ratio of summed amplitude. This covariance function is computed and evaluated appropriately for the geol... | 01/04/2000 |
| 5982707 | Method and apparatus for determining geologic relationships for intersecting faults A novel fault framework method and apparatus automatically computes the relationships between intersecting fault surfaces. When faults are loaded into the novel fault framework apparatus, all intersecting fault pairs are determined and the fault fault int... | 11/09/1999 |
