Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 8095318 | Method for estimating formation dip using combined multiaxial induction and formation image measurements A method for determining dip of rock formations penetrated by a wellbore using multiaxial induction measurements and imaging measurements made from within the wellbore includes estimating dip from the multiaxial induction measurements. Dip is also estimated from the... | 01/10/2012 |
| 7640111 | Method and system for interpreting borehole geological data Computer-based method and system are disclosed for interpreting dips, dip trends, and mineral based lithofacies data to identify certain geological events in a subsurface formation. The disclosed method/system analyzes dip magnitude and azimuth data to determine the... | 12/29/2009 |
| 7379854 | Method of conditioning a random field to have directionally varying anisotropic continuity The present invention is a method of generating a model of a random field which has directionally varying continuity. First, a tentative model for the random field is specified. Second, connected strings of nodes within the model are identified. Third, a spectral si... | 05/27/2008 |
| 7363200 | Apparatus and method for isolating noise effects in a signal A matrix includes samples associated with a first signal and samples associated with a second signal. The second signal includes a first portion associated with the first signal and a second portion associated with at least one disturbance, such as white noise or co... | 04/22/2008 |
| 7358725 | Correction of NMR artifacts due to axial motion and spin-lattice relaxation NMR spin echo signals are corrected for axial motion of the borehole logging tool. The correction is applied to an averaged echo train using an average velocity determined from surface measurements over the duration of averaging of the echo trains. An additional cor... | 04/15/2008 |
| 7357196 | Method and system for predicting performance of a drilling system for a given formation A method and apparatus for predicting the performance of a drilling system for the drilling of a well bore in a given formation includes generating a geology characteristic of the formation per unit depth according to a prescribed geology model, obtaining specificat... | 04/15/2008 |
| 7348781 | Apparatus for electromagnetic logging of a formation A tool for electromagnetic logging of a formation includes a tool body configured to move in a borehole penetrating the formation; an antenna array disposed on the tool body; and an electronic unit configured to control operation of the antenna array, wherein the an... | 03/25/2008 |
| 7340418 | Visual database for linking geography to seismic data A medium having a plurality of computer readable files relating to geophysical seismic data recorded thereon. The files include a map display having multiple levels of geographic detail and including a plurality of surface seismic data lines. A plurality of compress... | 03/04/2008 |
| 7324898 | System and method for determining a more accurate resistivity model of a geological formation using time-lapse well logging data A system and a method for estimating a model of a geological formation are provided. The geological formation has a wellbore extending therethrough. The method includes obtaining a first resistivity log associated with the geological formation from a LWD sensor in t... | 01/29/2008 |
| 7313479 | Method for real-time well-site interpretation of array resistivity log data in vertical and deviated wells A method and apparatus for real-time well-site interpretation of array resistivity log data. An inversion of data with different depths of investigation is carried out after data shoulder-bed correction. The formation model used by inversion is constructed with the ... | 12/25/2007 |
| 7302346 | Data logging A device and method for determining a geophysical characteristic of a borehole using at least one logging device is provided, wherein the at least one logging device includes at least one sensing device. The method includes associating the at least one sensing devic... | 11/27/2007 |
| 7295928 | Enhancing the quality and resolution of an image generated from single or multiple sources The present invention provides a method and apparatus for logging an earth formation and acquiring subsurface information wherein a logging tool is conveyed in a borehole to obtain parameters of interest. The parameters of interest obtained may be density, acoustic,... | 11/13/2007 |
| 7289938 | Method and a device for detecting discontinuities in a medium A method and a device for detecting discontinuities in a medium by detecting maxima, e.g. in an echo signal of an ultrasound excitation of the media, with maxima corresponding to a given discontinuity being grouped together as a function of coherence criteria applie... | 10/30/2007 |
| 7283910 | Incremental depth measurement for real-time calculation of dip and azimuth The present invention provides a method and apparatus for logging an earth formation and acquiring subsurface information wherein a logging tool is conveyed in borehole to obtain parameters of interest. The parameters of interest obtained may be density, acoustic, m... | 10/16/2007 |
| 7280932 | Method, systems, and computer readable media for optimizing the correlation of well log data using dynamic programming A method, systems, and computer readable media optimize the correlation of well log data utilizing dynamic programming. A geological signature in well log data from a reference well is mapped onto well log data from one or more target wells by using a dynamic progra... | 10/09/2007 |
| 7272504 | Real-time imaging while drilling Measurements made by a formation evaluation sensor downhole are processed to produce an image and a bitstream characterizing the image is transmitted uphole. The parameters used in the downhole processing are dynamically alterable. ... | 09/18/2007 |
| 7261167 | Method and system for predicting performance of a drilling system for a given formation A method and apparatus for predicting the performance of a drilling system for the drilling of a well bore in a given formation is disclosed. The method generates a geology model of a given formation. The geology model includes a geology characteristic of the given ... | 08/28/2007 |
| 7254486 | Method and apparatus for shale bed detection in deviated and horizontal wellbores A relative dip angle of a deviated borehole is determined from natural gamma ray measurements. Dip corrected measurements are processed to determine the thickness of thin beds, and the peak gamma ray response in thin beds. ... | 08/07/2007 |
| 7254241 | System and process for robust sound source localization A system and process for finding the location of a sound source using direct approaches having weighting factors that mitigate the effect of both correlated and reverberation noise is presented. When more than two microphones are used, the traditional time-delay-of-... | 08/07/2007 |
| 7249007 | Weather and climate variable prediction for management of weather and climate risk A method for simulating the statistical behavior of atmospheric, meteorological, or other geophysical time series having the following steps: (a) assembling an ensemble of observed data; (b) removing any evident cycles; (c) calculating the eigensystem and expansion ... | 07/24/2007 |
| 7236886 | Multiscale multidimensional well log data inversion and deep formation imaging method Different subsets of multiarray resistivity measurements are inverted using a corresponding resistivity model. The models are selected based at least in part on the resolution of the measurements. Results of the inversion are combined to give a single model consiste... | 06/26/2007 |
| 7236887 | Method of determining planar events from borehole or core images The present invention relates to a user-guided dip picking method from electrical borehole images using Hough Transform. It includes defining a top and bottom reference curve, applying the Hough Transform to the borehole image limited by the top and bottom reference... | 06/26/2007 |
| 7224162 | System and methods for upscaling petrophysical data System and methods for estimating properties of a geologic formation are disclosed. A preferred embodiment includes a method for estimating properties of a geologic formation, comprising the steps of: measuring a property of the formation in two or more directions a... | 05/29/2007 |
| 7219749 | Single solenoid guide system Measurement of the location and direction of a drill head in a borehole extending beneath an obstacle such as a body of water utilizes a single AC solenoid at a known location but having an unknown orientation. The measurements are used to direct the path of the bor... | 05/22/2007 |
| 7207215 | System, method and apparatus for petrophysical and geophysical measurements at the drilling bit Measurement of petrophysical and geophysical data of formations in a wellbore using a long gauge bit having at least one sensor therewith. The at least one sensor may be installed in at least one flute of the long gauge bit and/or in the long gauge portion thereof. ... | 04/24/2007 |
| 7209834 | Method and apparatus for estimating distance to or from a geological target while drilling or logging A system and method estimates the distance between a borehole and a subsurface boundary of interest in a geophysical region. In one embodiment, available existing sensor data for the geophysical region is used to create a resistivity model of the region, with the mo... | 04/24/2007 |
| 7200492 | Apparent dip angle calculation and image compression based on region of interest The present invention provides a method and apparatus for logging an earth formation and acquiring subsurface information wherein a logging tool is conveyed in borehole to obtain parameters of interest. The parameters of interest obtained may be density, acoustic, m... | 04/03/2007 |
| 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 |
| 7136510 | Borehole imaging A method of detecting significant events intersecting a borehole from an image of the borehole wall having: (a) converting the image into a three-dimensional orientation space; (b) selecting a parameter relation that represents the intersection of an event (3,5 | 11/14/2006 |
| 7124029 | Method for evaluating formation properties Methods for evaluating the properties of formations surrounding a borehole, include the steps of measuring electrical properties of the formation from within the borehole; deriving a model of parameters of the formation surrounding the borehole; and estimating the p... | 10/17/2006 |
| 7110323 | Method, system and apparatus for interpreting seismic data using duplex waves A Method for Interpreting Seismic Data Using Duplex Waves is described. Whereas substantially horizontal boundaries are readily identified using conventional processing methods based on primary reflections, it has been difficult or impossible to use such methods for... | 09/19/2006 |
| 7085696 | Iterative drilling simulation process for enhanced economic decision making An iterative drilling simulation method and system for enhanced economic decision making includes obtaining characteristics of a rock column in a formation to be drilled, specifying characteristics of at least one drilling rig system; and iteratively simulating the ... | 08/01/2006 |
| 7082371 | Fundamental mistuning model for determining system properties and predicting vibratory response of bladed disks A reduced order model called the Fundamental Mistuning Model (FMM) accurately predicts vibratory response of a bladed disk system. The FMM software may describe the normal modes and natural frequencies of a mistuned bladed disk using only its tuned system frequencie... | 07/25/2006 |
| 7068787 | System and method for protection of digital works A digital work and a system context (or resource information or system resource) are polarized enabling trusted rendering or replay of the digital work without depolarization of the digital content. The digital work includes digital content and resource information.... | 06/27/2006 |
| 7032689 | Method and system for predicting performance of a drilling system of a given formation A method and apparatus for predicting the performance of a drilling system for the drilling of a well bore in a given formation includes generating a geology characteristic of the formation per unit depth according to a prescribed geology model, obtaining specificat... | 04/25/2006 |
| 7035772 | Method and apparatus for calculating data integrity metrics for web server activity log analysis A method, apparatus, and computer implemented instructions for maintaining data integrity in logs in a data processing system. A log is reviewed. A determination is made as to whether the log contains a data loss. Data may be added to replace the data loss in the lo... | 04/25/2006 |
| 7027923 | Method for determining sonde error for an induction or propagation tool with transverse or triaxial arrays A method for determining a sonde error in a logging tool comprising a transverse array includes obtaining a first measurement using the transverse array while the logging tool is at a first height from ground in a selected orientation; obtaining a second measurement... | 04/11/2006 |
| 7027926 | Enhanced measurement of azimuthal dependence of subterranean parameters A method for estimating an azimuthal dependence of a parameter of a borehole using logging sensor measurements acquired as a function of azimuth of the logging sensors is provided. The method includes acquiring at least one logging sensor measurement and a correspon... | 04/11/2006 |
| 7002484 | Supplemental referencing techniques in borehole surveying A method for surveying a borehole is disclosed which uses first and second gravity measurement devices disposed at corresponding first and second positions in the borehole and a supplemental reference measurement device disposed at the first position. Exemplary supp... | 02/21/2006 |
| 6950749 | Method for resistivity anisotropy determination in near vertical wells A method is disclosed for real-time (well-site) resistivity anisotropy determination using array lateral logs or any other unfocused, lateral-type measurements, and array induction logs or any other focused, induction-type measurements. Near-vertical wells with a de... | 09/27/2005 |
