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WO/2003/014673A2 |
Environment measurement methods, systems, media, signals and data structures are disclosed. A first method involves receiving first signals produced in response to a laser beam scattered by the environment, receiving second signals produ...
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WO/2003/014525A1 |
An electromagnetic borehole telemetry system providing improved signal to noise ratio is showned in Figure 1. Adaptive filters (28) use noise channels as references to remove noise form the signal channel. Improved sensors (40) provide n...
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WO/2003/007020A1 |
An improved data telemetry system for multi-conductor wirelines to achieve satisfactory transmission of analog and digital signals with frequency content up to 100 kHz by assigning at least two conductors to a first terminal of a data tr...
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WO/2003/005059A1 |
Polarimetric synthetic aperture radar data is collected for an area of soil, and a vegetation correction is applied by either (i) using a Cloude decomposition of the data combined with a non-linear regression method, and/or (ii) correcti...
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WO/2003/003055A2 |
A method and apparatus (1) for measuring properties of rocks surrounding a borehole (3) comprising means (4, 5, 13, 14) for generating an electromagnetic signal downhole and means (8, 17) for detecting the seismic signal generated thereby.
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WO/2002/101417A2 |
The invention concerns a method for representing a volume of earth using a modelling environment comprising an application, said environment being implemented in one or a plurality of programmed computers. The invention is characterised ...
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WO/2002/099464A1 |
In a method for modeling a reservoir having a horizon surface with a reverse fault, a volume of the reservoir is partitioned into fault blocks. A bounding surface of each of the fault blocks includes a portion of the reverse fault. The i...
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WO2002003101A9 |
A method and system are disclosed for high-resolution modeling of a well bore in a reservoir. An embodiment of the present invention comprising the steps of constructing a first unstructured mesh, having a plurality of n-dimensional simp...
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WO2002003262A9 |
One embodiment of the present invention includes a method defining and displaying a reservoir model comprising, presenting in a graphical user interface, a series of windows walking a user through one or more steps necessary to generate ...
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WO/2002/073166A1 |
The present invention relates to the process and devices for assessing the permeability of a rock medium (1) containing a fluid (2) in its interstices (3). The device and the process according to the invention are characterised essential...
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WO/2002/071099A1 |
A fast, efficient and accurate pseudo 2-D inversion scheme (Fig. 4) for resistivity determination of an anisotropic formation (Fig. 3) uses data from a tool (3DEX) (10) comprising three transmitters (101, 103, 105) and three correspondin...
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WO/2002/069543A2 |
A method and system for providing a single logon system for logging onto multiple server computers (330) without modification of the server computers (330). The logon system is provided by a portal computer (320) that implements a portal...
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WO/2002/066782A1 |
Apparatus for transmitting an electrical signal in a borehole where the conduit (1) in the borehole is blocked or sealed or otherwise occluded. The apparatus comprises a conduit section (1) made from a conducting material (15) having an ...
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WO/2002/065374A2 |
A method of analyzing well log data from thinly bedded reservoirs (12), to obtain estimates of hydrocarbon pore volume. A model of the reservoir is established for an interval that is to analyze. Within the analysis interval, a set of be...
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WO/2002/063341A1 |
A power transmission and data communications system for use in a gas or oil well borehole is disclosed. The borehold includes a casing (104) and a piping structure (111) therein and at least one downhole equipment module (118) located th...
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WO/2002/054332A1 |
A computer system is disclosed for simulating transport phenomena in a complex system. The system comprises memory means, storage means, and an object-oriented software. The software comprises an object-oriented extensible class hierarch...
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WO/2002/050507A2 |
A seismic signal processing method (74) to analyse a set of seismic data (80) and determine a set of geologic characteristics of the earth formation (94) using a cross correlation technique with steps of a first data set with two or more...
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WO/2002/047011A1 |
Methods for modeling multidimensional domains by merging multiple input data sets into a model, applying multiple dynamic theories to evolve the model, and using the information theory to resolve gaps in and discrepancies among the data ...
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WO/2002/018977A1 |
A method of determining the distribution of shales, sands and water in a reservoir including laminated shaly sands using vertical and horizontal conductivities derived from nuclear, NMR, and multi-component induction data such as from a ...
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WO/2002/018976A1 |
A process for constructing a three-dimensional geologic model of a subsurface earth volume wherein resolution scales of multiple diverse data types (102, 104, 106, 108, 110), including seismic data (106), are accounted for by generating ...
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WO/2002/008570A1 |
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 con...
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WO/2002/007106A1 |
The invention relates to a detection device for detecting individuals or objects and their direction of movement that comprises a radiation sensor array for detecting electromagnetic radiation having the wavelength of visible and/or non-...
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WO/2002/006857A1 |
A reservoir simulator first estimates rock displacement parameters (u, v, and w) representing rock movement in the x, y, and z directions. When the rock displacement parameters (u, v, w) are determined, '$g(e)¿x,y,z?' (the X,Y,Z elongat...
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WO/2002/003265A2 |
Methods and systems for adapting an unstructured mesh to a modeled space. In one embodiment, a surface is defined in the modeled space, intersections of the surface with the elements of the mesh are determined, and new elements within th...
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WO/2002/003264A2 |
A method for solving finite element problems in n+1 dimensions by iteratively extruding an n-dimensional finite element mesh in an n+1th dimension to form 'slabs' which can be more easily solved within the entire n+1-dimensional problem....
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WO/2002/003263A2 |
A method and system for predicting the behavior of a physical system are disclosed. One embodiment of the method of this invention comprises the steps of creating an equation in a first coordinate system to model an aspect of the physica...
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WO/2002/003103A2 |
Systems and methods for solving finite element models (using multi-phase physics), wherein the matrix that governs the solution is modified by adjusting the weighting coefficients of the matrix so that the elements which lie on the diago...
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WO/2002/002901A2 |
A method for simulating a physical system using finite element techniques, wherein two or more distinct models corresponding to distinct regions within the modeled system are solved, each with a corresponding evaluator. Nodes which lie o...
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WO/2002/001251A2 |
A method for solving space-time problems involving three-dimensional space wherein an unstructured four-dimensional finite element model is generated and solved to produce a four-dimensional solution. The four-dimensional mesh is generat...
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WO/2001/098629A1 |
A system for use in a well, such as an intelligent completion system, includes an electrical cable (50) and a plurality of communication modules (20 and 34) positioned in the well. At least a first communication module is connected to th...
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WO/2001/098618A2 |
A downhole telemetry system that transmits a burst-QAM uplink signal to the surface of the well is disclosed. In a preferred embodiment, the well includes composite tubing having circumferentially-spaced electrical conductors helically w...
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WO/2001/090783A1 |
This invention relates to a method for determining direction and relative magnitude of maximum horizontal stress in sedimentary basins within Earth's crust. In particular the method uses seismic reflection data in determining the directi...
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WO/2001/086325A1 |
A method is disclosed for reducing noise in a measured telemetry signal. The method includes tracking a characteristic of at least one harmonic of a noise component in the measured telemetry signal band. The at least one harmonic has a f...
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WO/2001/073476A1 |
A three-dimensional, geologic basin simulator for predicting natural resource location and characteristics is disclosed. The simulator integrates seismic inversion techniques with other data to predict fracture location and characteristi...
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WO/2001/071377A1 |
In the invention a knowledgeable observation analysis-linked advisory system (480) is used with a circuit to focus the radar on a subterranean object (492); a radar altimeter (415); a hydrocarbon leak detector (466); a high-resolution ch...
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WO/2001/065718A2 |
A petroleum well (20) for producing petroleum products that incorporates a system adapted to controllably route communications and/or electrical power having a time-varying current through a piping structure (30 and/or 40) in the well (2...
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WO/2001/062603A2 |
A method of managing a fluid or gas reservoir is disclosed which assimilates (Fig. 4, item 45) diverse data (items 62 and 68) having different acquisition time scales and spatial scales of coverage for iteratively producing a reservoir d...
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WO/2001/058078A1 |
A method and related apparatus for high speed digital data communications from multiple distributed modems to a single central modem (122) or a common transmission medium (80). In one embodiment, multiple downhole modems (130A, 130B, 130...
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WO/2001/046670A2 |
A plurality of CPU subsystems (450-1, 450-2) are used together with a radar cross-section subsystem (410) and a laser subsystem (430) in a system to examine remotely wooden structures. The system further includes a circuit to focus radar...
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WO/2001/037003A1 |
An oilfield data analysis system is based on a four-tier software model which includes a 'shared earth model' and a federation of 'directory services'. The first tier is a universal graphical user interface (GUI) which can operate on any...
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WO/2001/033255A1 |
A workstation stores a novel seismic classification software package (known as the 'Seisclass software'). During execution of the Seisclass software by a processor of the workstation, the workstation processor will present a plurality of...
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WO/2001/022123A1 |
A method of measuring characteristics of a geologic formation, using the time, energy and spatial spectra of gamma rays induced by an accelerator, which allows (i) the measurement of the photoelectric absorption (Pe) factor of the format...
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WO/2001/002876A1 |
The invention concerns a method for gradually deforming representations or productions, generated by sequential simulation, of a stochastic model not necessarily Gaussian of a physical quantity z in a meshed heterogeneous environment, so...
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WO/2001/001171A1 |
The invention concerns instruments for analysing soil (1) from its surface (2) using a probe (3) having a given analysis lobe (4) and a resolution time (T). The inventive instrument is essentially characterised in that it comprises a dri...
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WO/2000/075695A1 |
A method of identifying the fluid type of formations according to the correlation between the variation trend of resistivity with depth and the variation trend of porosity with depth. The method includes the steps of: a) determining the ...
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WO2000060379B1 |
A method for modeling geological structures includes obtaining seismic data, (12), and using this data to derive an initial density model, (14). Potential field data is used to update the initial geophysical model by an inversion process...
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WO/2000/063725A1 |
A method of calculating a theoretical sonic log from an ideal sonic log and resistivity data. The method involves calculating the ideal sonic log assuming a shale sediment and using available data from a well or the surrounding region. R...
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WO/2000/057381A1 |
A method for determining if a motion detector is in a masked condition at the time power is applied to the detector. When power is first applied to the motion detector it enters a mask detection state which runs concurrently with activit...
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WO/2000/048022A1 |
A method, apparatus, and article of manufacture are provided that use measurement data to create a model of a subsurface area. The method includes creating an initial parameterized model having an initial estimate of model parameter unce...
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WO/2000/038957A1 |
An occupant detection system (10) comprises an electric field sensor (100) in the seat bottom (42) of a vehicle seat (3) for discriminating objects on the seat (3), and a range/proximity sensor (200) for sensing the proximity of an occup...
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