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| Number | Title | Issue Date |
| 7676326 | VH Reservoir Mapping A method and system of detecting and mapping a subsurface hydrocarbon reservoir includes determining ratio data for a plurality of orthogonal spectral components of naturally occurring low frequency background seismic data. The ratio data may be compared, plotted, c... | 03/09/2010 |
| 7627430 | Method and system for managing information A method for managing information associated with an oilfield operation of an oilfield, the oilfield having a subterranean formation with geological structures and reservoirs therein. The method includes specifying a first site of interest, where a first data source... | 12/01/2009 |
| 7627429 | Method for producing underground deposits of hydrocarbon from an earth formation using fault interpretation including spline fault tracking A method is disclosed for determining a fault surface in a formation, comprising: determining a first plurality of crosscorrelation values for a 3D Volume associated, respectively, with a corresponding first plurality of 3D Volumes, and selecting a first minimum one... | 12/01/2009 |
| 7580796 | Methods and systems for evaluating and treating previously-fractured subterranean formations Methods, computer programs, and systems for evaluating and treating previously-fractured subterranean formations are provided. An example method includes, for one or more of the one or more layers, determining whether there are one or more existing fractures in the ... | 08/25/2009 |
| 7519476 | Method of seismic interpretation A seismic data analysis method including: loading at least one seismic data volume to a database, performing unbiased sampling on a portion of the seismic data volume to obtain a plurality of unbiased sampling traces, selecting a plurality of trace positions from th... | 04/14/2009 |
| 7444242 | Method and system for statistical pressure gradient and fluid contact analysis A method and system for statistical pressure gradient and fluid contact analysis. The method and system include planning for a pressure gradient test by using expected parameters and statistical expected error analysis to set the actual pressure gradient test parame... | 10/28/2008 |
| 7433785 | Method for predicting grain size distribution from reservoir thickness The present invention is a method for predicting the grain size distribution at a designated location within a water-lain sedimentary deposit. Initially, the vertical thickness of the sedimentary deposit at the designated location must be determined, as well as the ... | 10/07/2008 |
| 7433786 | Method of estimating geological formation depths by converting interpreted seismic horizons the time domain to the depth domain A method of estimating geological location depths by converting horizon data from the time domain to the depth domain is provided wherein the method includes at least a data accumulation step and a data evaluation step, and wherein the data evaluation step further i... | 10/07/2008 |
| 7424367 | Method for predicting lithology and porosity from seismic reflection data Method for predicting lithology and porosity of subsurface rocks from seismic reflection data. The seismic data is inverted to yield elastic properties of the rocks such as the compressional and shear impedances. A rock physics model is built to relate porosity, the... | 09/09/2008 |
| 7398159 | System and methods of deriving differential fluid properties of downhole fluids Methods and systems are provided for downhole analysis of formation fluids by deriving differential fluid properties and associated uncertainty in the predicted fluid properties based on downhole data less sensitive to systematic errors in measurements, and generati... | 07/08/2008 |
| 7397240 | Method of measuring rock wettability by means of nuclear magnetic resonance A method for measuring the wettability of rocks by low-field nuclear magnetic resonance is described which has application for hydrocarbon reservoir engineering or development, or in civil engineering. The method essentially determines the water wet pore surface and... | 07/08/2008 |
| 7398180 | Vehicle technician time clock tool A vehicle technician time clock tool comprises a computer-implemented interface to a database, wherein the database contains vehicle service task-related information and time-related information, the vehicle service task-related information and time-related informat... | 07/08/2008 |
| 7388381 | High resolution geoelectrical probe A in situ probe for the measurement of the geoelectrical properties of a geological formation. The probe serves as the interface between a standard acquisition system and the earth. The probe is customizable in its length and the type of electrodes used to make cont... | 06/17/2008 |
| 7386431 | Method system and program storage device for simulating interfacial slip in a hydraulic fracturing simulator software A method, practiced by a Hydraulic Fracturing Simulator software, is adapted for simulating a hydraulic fracture in an Earth formation, the formation including a plurality of layers, a slip zone, which represents a debonding between adjacent layers of the Earth form... | 06/10/2008 |
| 7383133 | Diffuse seismic imaging systems and methods Systems and methods are disclosed to construct subsurface images from diffuse seismic energy. Various disclosed system embodiments include multiple seismic sensors that each convert received seismic energy into one or more seismic signals. One or more processor comb... | 06/03/2008 |
| 7379819 | Reservoir sample chain-of-custody Methods of assuring that a representative formation and/or fluid sample of a subterranean reservoir is obtained are provided. One method of validating a reservoir fluid sample obtained from a wellbore includes the steps of acquiring a reservoir fluid sample in the w... | 05/27/2008 |
| 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 |
| 7373251 | Method for predicting quantitative values of a rock or fluid property in a reservoir using seismic data A method is provided for predicting a value of a designated rock or fluid property in a subterranean geologic volume. A first predicted value of the designated rock or fluid property is also assigned to a volume of a multi-dimensional, multi-scale model. A first pre... | 05/13/2008 |
| 7366616 | Computer-based method for while-drilling modeling and visualization of layered subterranean earth formations A computer-based method is provided for modeling and visualizing a property of a subterranean earth formation while drilling a borehole therethrough. The computer-based method gathers electromagnetic signals corresponding to a current measurement station location of... | 04/29/2008 |
| 7363161 | Pore-scale geometric models for interpretation of downhole formation evaluation data The grain size of a pore-scale geometric model of a clastic earth formation are adjusted so that the NMR relaxation time distribution output of the model matches a measured NMR distribution. Fluid drainage and imbibing can be simulated. Additional properties of the ... | 04/22/2008 |
| 7359800 | Determination of fracture orientation and length using multi-component and multi-array induction data Measurements made by multiarray and multicomponent induction resistivity measurements in a borehole are used for determining the orientation and length of fractures in an earth formation when the fractures have a fluid with a resistivity different from that of the e... | 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 |
| 7359844 | Real time earth model for collaborative geosteering An earth model is formed in real time during drilling of a well by incorporating up-to-the-minute knowledge derived from geology, seismic, drilling, and engineering data. The process of forming the model utilizes Logging-While-Drilling (LWD) or Measuring-While-Drill... | 04/15/2008 |
| 7356413 | Pore-scale geometric models for interpretation of downhole formation evaluation data Parameters of a pore-scale geometric model of a clastic earth formation are adjusted so that the output of the model matches measurements made on a core sample. Additional properties of the earth formation are predicted using the pore-scale model. The additional pro... | 04/08/2008 |
| 7356414 | Seismic image deformation method for improved interpretation The present invention is a method of geometric deformation of a seismic image for interpretation. The method includes selecting a geologic layer represented in the seismic image determining by stratigraphic modeling a mean topographic depositional surface for said l... | 04/08/2008 |
| 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 |
| 7340385 | Method and program storage device for generating grids representing the architecture of fluvial reservoirs A method is disclosed for modeling a point bar associated with a multi-story channel belt, the method including: (a) in response to a plurality of rock classifications, generating a first two dimensional grid representing a grid of a top of the point bar and generat... | 03/04/2008 |
| 7340347 | Method to visualize three dimensional log data on two dimensional media This invention relates to methods and systems for displaying geological formation data obtained through well logging in the technical field of petroleum engineering. In one embodiment of this invention, two or more cylindrical surfaces are provided each representing... | 03/04/2008 |
| 7337067 | System and method for attaching drilling information to three-dimensional visualizations of earth models A system and method for perceiving drilling learning through visualization is provided. In one embodiment using three-dimensional visualization of the earth model as a foundation, a new IT development strategy focuses on perceiving “Drilling Learning” by an intu... | 02/26/2008 |
| 7337069 | Method of simulating the sedimentary deposition in a basin respecting the thicknesses of the sedimentary sequences The method of the invention allows, by means of an iterative inversion algorithm, prediction of the spatial distribution of the lithologic composition of sediments deposited in a sedimentary basin during a geologic time interval, and the temporal evolution of the de... | 02/26/2008 |
| 7337068 | Global classification of sonic logs A method of determining the sonic slowness of a formation traversed by a borehole comprising generating tracks from sonic waveform peaks received at a plurality of depths wherein the peaks that are not classified prior to tracking is set forth. A method for generati... | 02/26/2008 |
| 7333392 | Method for estimating and reconstructing seismic reflection signals A method for reconstructing seismic data signals of poor quality to improve the signal-to-noise ratio of the data for display and analysis in connection with the selection of drilling sites for recovery of hydrocarbons. The method includes providing a signal model b... | 02/19/2008 |
| 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 |
| 7324929 | Method and system for simulating a hydrocarbon-bearing formation The invention is a method for simulating one or more characteristics of a multi-component, hydrocarbon-bearing formation into which a displacement fluid having at least one component is injected to displace formation hydrocarbons. The first step of the method is to ... | 01/29/2008 |
| 7315783 | Traveltime calculation in three dimensional transversely isotropic (3D TI) media by the fast marching method A technique for calculating traveltime of a seismic wave in three dimensional tilted transversely isotropic (3D TI) media includes determining a wave vector, defining a unit vector, calculating an angle of the wave vector from an axis and performing a slowness deter... | 01/01/2008 |
| 7301345 | While-drilling methodology for estimating formation pressure based upon streaming potential measurements Logging-while-drilling apparatus and methodologies for measuring streaming potential in an earth formation are provided. The apparatus and methodologies can be utilized to find information relevant to the drilling operations. In particular, since the streaming poten... | 11/27/2007 |
| 7295927 | Determining water saturation for oil bearing thin-bedded formation having anisotropic resistivity A method to estimate water saturation (Sw) of a thin-bedded formation is provided including (a) developing a model of anisotropy of resistivity (Rv/Rh) a function of water saturation (Swt) for one or more volume fractions ... | 11/13/2007 |
| 7286937 | Estimating formation properties from downhole data Methods and systems for extracting formation properties from formation logging data is disclosed. A method includes obtaining a deconvolution filter; and processing the formation logging data using the deconvolution filter to produce estimates of the formation prope... | 10/23/2007 |
| 7277795 | Method for estimating pore structure of porous materials and its application to determining physical properties of the materials A method is disclosed for modeling a pore structure of a porous material. The method includes generating an initial model of the porous material. The initial model includes an interconnected network of passages including a first geometric shape and a second geometri... | 10/02/2007 |
| 7273097 | Formation characterization using wellbore logging data Methods for determining formation characteristics comprising establishing baseline casing conditions for a string of casing disposed within a wellbore in a formation and measuring updated casing conditions for the string of casing at a first time interval from the e... | 09/25/2007 |