Dipmeter Patents (Class 702/10)
  • Patent number: 10598010
    Abstract: A method for generating a phase envelope log to characterize a subsurface formation includes drilling the borehole with a drill string, circulating a drilling fluid in the borehole, drawing a fluid sample representing a fluid contained in the subsurface formation, estimating a PVT parameter indicative of an in-situ condition of the subsurface formation from the drawn fluid sample, determining at least two phase envelopes at different depths using the estimated PVT parameter, and creating a phase envelope log formed of a continuous series of phase envelopes using the phase envelopes. A related system includes a drill string, a fluid sampling system, and a processor that estimates a PVT parameter indicative of an in-situ condition of the subsurface formation, determines at least two phase envelopes at different depths using the PVT parameter, and creates the phase envelope log.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: March 24, 2020
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Svenja Erdmann, Stefan Wessling, Nicklas J. Ritzmann, Oliver Mohnke, Holger F. Thern
  • Patent number: 10565185
    Abstract: The disclosed embodiments relate to a system that certifies provenance of time-series data in a time-series database. During operation, the system retrieves time-series data from the time-series database, wherein the time-series data comprises a sequence of observations comprising sensor readings for each signal in a set of signals. The system also retrieves multivariate state estimation technique (MSET) estimates, which were computed for the time-series data, from the time-series database. Next, the system performs a reverse MSET computation to produce reconstituted time-series data from the MSET estimates. The system then compares the reconstituted time-series data with the time-series data. If the reconstituted time-series data matches the original time-series data, the system certifies provenance for the time-series data.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: February 18, 2020
    Assignee: Oracle International Corporation
    Inventors: Kenny C. Gross, Dieter Gawlick, Zhen Hua Liu, Mengying Li
  • Patent number: 10539015
    Abstract: Apparatus and methods for assessing contamination of formation fluid. A downhole sampling tool is operated to draw fluid from a subterranean formation into a chamber of the downhole sampling tool. The downhole sampling tool is then operated to discharge the fluid from the chamber while monitoring pressure of the fluid and volume of the chamber. Contamination of the discharged fluid is assessed based on the monitored fluid pressure and the monitored chamber volume.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: January 21, 2020
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Alain Nguyen-Thuyet
  • Patent number: 10488556
    Abstract: A system and method for providing multivariate climate change forecasting are provided that obtain, from one or more climate model datasets, simulated historical and future climate model data, and from one or more climate observational datasets, historical observed climate data. A statistical distribution, using a Bayesian model, is provided of extremes or climate indices for one or more variable climate features using the simulated climate model data and the observed climate data. One or more metrics are determined, including a prediction of a future climate variable for a determined future time period, a confidence bound of the prediction of the future climate variable for the determined future time period, and a prediction bound for the future climate variable for the determined future time period. The metrics can be transmitted to a variety of applications in a variety of formats.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: November 26, 2019
    Assignee: Northeastern University
    Inventors: Evan Kodra, Auroop R. Ganguly
  • Patent number: 10400595
    Abstract: Analysis evaluates formation fluid with a downhole tool disposed in a borehole. A plurality of possible constituents is defined for the formation fluid, and constraints are defined for the possible constituents. The constraints can include boundary constraints and constraints on the system's dynamics. The formation fluid is obtained from the borehole with the downhole tool over a plurality of time intervals, and density of the obtained formation fluid is obtained at the time intervals. To evaluate the fluid composition, a state probability distribution of the possible constituents of the obtained formation fluid at the current time interval is computed recursively from that at the previous time interval and by assimilating the current measured density of the obtained formation fluid in addition to the defined boundary/dynamic constraints.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: September 3, 2019
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Hamed Chok, Jeffery J. Hemsing, Jess V. Ford
  • Patent number: 10360326
    Abstract: A modal analysis is performed on a blade and disk assembly of a turbomachine, including selecting a target vibration frequency at which a target amplitude of vibration has been measured for a target node during operation, and deriving modal velocity vectors from the target amplitude at the target node. A transient analysis is performed on a numerical model of the blade and disk assembly, including modeling the connection between the blade and disk such that the connection is characterized by a first degree of flexibility representative of a first set of actual operating conditions at the connection, and introducing a perturbation to the transient analysis at an initial steady state condition by applying the modal velocity vectors suddenly to a plurality of nodes of the numerical model while maintaining the initial steady state condition.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: July 23, 2019
    Assignee: Solar Turbines Incorporated
    Inventor: Olivier Lamicq
  • Patent number: 10359539
    Abstract: Calibration tools and procedures that provide one or more calibration methods for multi-component induction tools can include use of a tilted elliptical loop and a circular loop. Measurement signals may be used for analytic calibration of a multicomponent induction tool. Additional apparatus, systems, and methods are disclosed.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: July 23, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Luis E. San Martin, Dagang Wu, Baris Guner
  • Patent number: 10302811
    Abstract: A data reduction method for transmission of a borehole image to the surface of the earth using restricted band widths of LWD telemetry systems. The data reduction method is based on the measurement physics rather than mathematical compression algorithms. Measured data from a sensor are fitted, within the logging tool, to a response function relating sensor response to a parameter of interest. The coefficients of the fitted response function are scaled and then telemetered to the surface. The measured data are reconstructed at the surface by combining the telemetered coefficients with the response function. A borehole image is formed by combining reconstructed reduced data. Parameters of dipping beds intersecting the borehole can be determined from the coefficients.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: May 28, 2019
    Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
    Inventor: Medhat W. Mickael
  • Patent number: 9354340
    Abstract: A method for displaying exploration and production (E&P) data set during an E&P tool session of a field having a subterranean formation. The method includes generating, by an E&P tool executing on a computer processor during the E&P tool session, an E&P data set based on a subterranean formation field data set, displaying, to a user controlling the E&P tool session, the E&P data set as a multi-dimensional canvas, generating, by the computer processor and in response to a user input identifying a point in the multi-dimensional canvas, a strike&dip tool tip, and further displaying the strike&dip tool tip superimposing the multi-dimensional canvas, wherein the strike&dip tool tip is tagged to the point in the multi-dimensional canvas.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: May 31, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Walter Emerson Brown
  • Patent number: 9341729
    Abstract: A method for visualizing seismic data of a subterranean formation, including obtaining an estimated dip field of the subterranean formation, wherein the estimated dip field represents a measure of deviation of a stratigraphic layer from flat, extracting a matrix data item surrounding a voxel of the seismic data, wherein the matrix data item is extracted from the seismic data based on a value of the estimated dip field surrounding the voxel, generating modified seismic data by at least applying a matrix operator to the seismic data, wherein the matrix operator calculates a partial derivative of the seismic data using the matrix data item, and displaying the modified seismic data.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: May 17, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Ahmed Adnan Aqrawi, Trond Hellem Bø
  • Patent number: 9335434
    Abstract: The current application is directed to methods and systems for processing EM-survey data in order to extract accurate earth-response curves from the raw EM-survey data. The more accurate earth-response curves are obtained as a result of a generally non-linear decimation, or parameterization, of the earth-response curves, the non-linear parameterization generally applied to extraction of earth responses from raw EM-survey data collected by multiple EM sensors. Parameterization of the earth-response curves and data allows for greater accuracy in estimating the earth-response curves from raw EM-survey data due to use of estimation methods based on processing over-determined raw EM-survey data. In addition, parameterization of earth-response curves may lead to a decrease in computational complexity and an increase in computational efficiency in subsequent intermediate-stage and final-stage processing operations.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: May 10, 2016
    Assignee: PGS GEOPHYSICAL AS
    Inventors: Erik Bjornemo, Peter Lindqvist
  • Patent number: 9097820
    Abstract: Apparatus, Tool and Method for Look-Ahead Advance Formation Evaluation which investigates the formation or formation characteristic in advance of the drill-bit before the formation or formation feature of interest has been penetrated or traversed. A closed-loop real-time look-ahead formation evaluation tool which provides acoustic and/or electro-magnetic formation data beyond the drill-bit using a novel angular sensor orientation which also allows for optimized signal propagation and signal returns according to an axial plane and vertical depth.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: August 4, 2015
    Inventor: Wajid Rasheed
  • Patent number: 9043154
    Abstract: A method of calculating a 3-D geologic model in real time using, as input, 2-D geologic data. The 3-D is used for conducting further drilling operations. The model may be updated in real time using additional measurements obtained during drilling operations.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: May 26, 2015
    Assignee: BAKER HUGHES INCORPORATED
    Inventor: Pascal Luxey
  • Patent number: 8849572
    Abstract: An apparatus for determining the concentration of a conductive fluid present in a fluid filled bore hole is described. Such apparatus are known as water hold-up meters and are frequently used in oil, gas and water filled bore holes. In bore hole applications, data bandwidth between a down hole device and the surface can be limited, while determining water hold-up based on down hole measurements can be data intensive. A technique is proposed for calculating the water hold up that requires less data to be transmitted between the down hole device and the surface.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: September 30, 2014
    Assignee: Sondex Wireline Limited
    Inventors: Guy Harvey Mason, James Andrew Gulliver, Derek George Hayes, Paul Franklin Steel, Kenneth Tomkins, Andrew John Stevens
  • Patent number: 8829907
    Abstract: An apparatus for estimating a property of an earth formation penetrated by a borehole, the apparatus having: a carrier configured to be conveyed through the borehole; a transmitter disposed at the carrier and configured to transmit electromagnetic energy at a first frequency into the formation; a first antenna disposed at the carrier and configured to receive electromagnetic signals from the formation as a result of the transmitted electromagnetic energy interacting with the formation; and an active filter coupled to the antenna and configured to filter electromagnetic signals received by the antenna to let the electromagnetic signals at the first frequency pass for processing to estimate the property.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: September 9, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Jack Signorelli, Sheng Fang, Samuel Bell
  • Patent number: 8805617
    Abstract: A method and system for characterizing formation fluids contaminated with drilling mud that compensates for the presence of such drilling mud. The operations that characterize formation fluids contaminated with drilling mud can be carried out in real-time. The operations also characterize a wide array of fluid properties of petroleum samples contaminated with drilling mud in a manner that compensates for the presence of drilling mud. The operations characterize the viscosity and density of petroleum samples contaminated with drilling mud at formation conditions in a manner that compensates for differences between formation conditions and flowline measurement conditions. The operations also derive live fluid density unaffected by contamination of mud filtrate based on a scaling coefficient dependent on measured gas-oil ratio of the formation fluid.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: August 12, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Youxiang (Jullan) Zuo, Dingan (Dan) Zhang, Dong Chengli, Oliver C. Mullins, Michael O'Keefe
  • Patent number: 8797035
    Abstract: One method of monitoring a formation core during coring operations can include measuring resistivities of a formation internal and external to a core barrel assembly, comparing the resistivities of the formation internal and external to the core barrel assembly, and determining a displacement of the core into the core barrel assembly, based at least in part on the comparing, while the core is being cut. A formation core analysis system can include multiple longitudinally spaced apart sets of transmitters and receivers which measure resistivity of a core while the core displaces into a core barrel assembly, and multiple longitudinally spaced apart sets of transmitters and receivers which measure resistivity of a formation external to the core barrel assembly while a coring bit penetrates the formation. A speed of displacement of the core may be indicated by differences in time between measurements taken via the different sets as the core displaces.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: August 5, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Michael S. Bittar, Gary E. Weaver
  • Patent number: 8793072
    Abstract: The invention is a method of monitoring an underground formation into which a gas is injected or from which a gas is produced, by a stratigraphic inversion of seismic data with anamorphosis of impedances. Pre-injection and post-injection seismic data are acquired. A pre-injection seismic impedance cube IP1 is determined by a stratigraphic inversion of the pre-injection seismic data. An anamorphosis function ? is defined by a function comprising a positive lower limit B1, an upper limit B4, an identity interval defined between limits B2 and B3, with B1<B2<B3<B4. A value for each limit B1, B2, B3 and B4 is associated with each cell of the cube. Post-injection seismic impedances IP2 are determined by a stratigraphic inversion of the post-injection seismic data wherein the anamorphosis function ? is applied to seismic impedances IP2. The gas is located within the zone by identifying the cells where IP2<IP1.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: July 29, 2014
    Assignee: IFP Energies Nouvelles
    Inventors: Michel Leger, Vincent Clochard
  • Patent number: 8614578
    Abstract: The present disclosure relates to determining the attenuation of an electromagnetic signal passing through a conductive material. An antenna is provided and placed in relatively close proximity to the conductive material. An alternating current is passed through the antenna and the impedance of the antenna is measured. The attenuation is determined using the measured impedance. A single frequency measurement may be made, or multiple measurements using different frequencies may be made. Grouped parameters based on properties of the material and the frequency of the current are used to relate the coil impedance to the attenuation. A current frequency for which the ratio of the antenna's resistive part of the impedance to the angular frequency of the current is substantially insensitive to at least one of the parameters is preferred.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: December 24, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Guozhong Gao, H. Frank Morrison, Hong Zhang, Richard A. Rosthal, David Alumbaugh, Cyrille Levesque
  • Patent number: 8571799
    Abstract: A methodology improves sampling and characterization of heterogeneous, unconventional hydrocarbon-bearing regions. The methodology is designed to integrate consistently across measurements and scales. Additionally, the methodology involves characterizing various scales, such as regional-scale heterogeneity, wellbore-scale heterogeneity, core-scale heterogeneity, sample-scale, and pore-scale heterogeneity. The results are integrated across the multiple scales based on results obtained from the characterization of the scales. The methodology further comprises determining data propagation across the multiple scales in a hydrocarbon-bearing region.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: October 29, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Roberto Suarez-Rivera, David Handwerger, Lars Sonneland, Samuel Fluckiger, Mary Milner, Douglas Ekart
  • Publication number: 20130261975
    Abstract: A method for logging subsurface formations penetrated by a wellbore include measuring electromagnetic properties of the formations using electromagnetic fields having a magnetic dipole axis parallel to a logging tool axis Electromagnetic properties of the formations are also measured using electromagnetic fields having a magnetic dipole axis oblique to the logging tool axis. A horizontal resistivity of the formations is determined from the parallel dipole axis measurements. A vertical resistivity, formation layer boundaries and a dip angle of the formations are determined from the oblique dipole axis measurements.
    Type: Application
    Filed: March 11, 2013
    Publication date: October 3, 2013
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Jian Yang
  • Publication number: 20130151158
    Abstract: A method for making dynamic gravity toolface measurements while rotating a downhole measurement tool in a borehole is disclosed. The method includes processing magnetic field measurements and accelerometer measurements to compute a toolface offset and further processing the toolface offset in combination with a magnetic toolface to obtain the dynamic gravity toolface. Methods for correcting dynamic and static navigational sensor measurements to remove sensor biases, for example, are also disclosed.
    Type: Application
    Filed: March 23, 2012
    Publication date: June 13, 2013
    Inventors: Andrew G. Brooks, Sugiura Junichi
  • Publication number: 20130144530
    Abstract: Various embodiments include apparatus and methods of operation with respect to well logging. Apparatus and methods include a tool having an arrangement of transmitters and receivers that are operated at different positions downhole and a processing unit to process collected signals such that the arrangement of transmitters and receivers provides measurements that mimic operation of a different arrangement of transmitters and receivers. Additional apparatus, systems, and methods are disclosed.
    Type: Application
    Filed: August 31, 2010
    Publication date: June 6, 2013
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Michael S. Bittar, Shanjun Li, Yumei Tang
  • Patent number: 8447523
    Abstract: A system for determining at least one of a lithology of a formation traversed by a borehole and an operational condition of a component of a drill string disposed in the borehole is disclosed. The system includes a drill string with a high speed wired pipe telemetry system for transmitting downhole measurements made by a sensor to a computer processing system in real time. The computer processing system is external to the drill string and includes a model that models operation of the drill string and/or a formation that is being drilled. The model receives the downhole measurements and surface measurements of a drilling parameter and provides as output detection of the lithology of the formation and/or the operational condition of the component.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: May 21, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Hanno Reckmann, Pushkar N. Jogi
  • Patent number: 8442769
    Abstract: Various methods are disclosed, comprising obtaining a plurality of raw depth measurements for a wellbore; obtaining survey data about a bottom hole assembly; obtaining depth compensation information; calculating a plurality of compensated depth measurements from the raw depth measurements and the depth compensation information and one or more additional corrections for residual pipe compliance, tide, and rig heave; calculating sag angle and correcting the survey data with the sag angle; determining a high fidelity wellbore trajectory from the compensated depth measurements and the survey data; and then employing the high fidelity wellbore trajectory in various drilling, formation evaluation, and production and reservoir analysis applications. Depth compensation information may comprise at least one of weight on bit, a friction factor, temperature profile, borehole profile, drill string mechanical properties, hookload, and drilling fluid property. The surveys may include both static and continuous surveys.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: May 14, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Wayne J. Phillips, Georgiy Bordakov, Alexander Kostin, Shyam Mehta, Denis Heliot, John C. Rasmus
  • Patent number: 8386083
    Abstract: A valve system for a mass flow controller that controls a flow rate of a fluid is disclosed. The valve system includes a valve movable between an open position and a closed position to adjust the flow rate of the fluid to a desired set point, and a valve controller. The valve controller sends a valve current through the valve, so as to adjust the flow rate of the fluid until an actual measured flow rate of the fluid substantially equals the desired set point. The valve controller monitors the valve current and the flow rate when the valve is moving to the closed position, determines a value of the valve current when the fluid has near-zero flow rate, and updates the valve cracking current for a next run, by setting the updated valve cracking current to the value of the valve current at the near-zero flow rate.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: February 26, 2013
    Assignee: MKS Instruments, Inc.
    Inventor: Junhua Ding
  • Patent number: 8364404
    Abstract: Method and system for visualizing one or more properties of a subterranean earth formation while drilling a borehole using probability information from a modeling process. Probability waveforms based on information from a plurality of borehole stations may be plotted, either alone or superimposed onto other graphical representations, to provide a visual display that is easily interpreted by a user to make geosteering decisions. The probability waveforms include peaked sections that are proportional to the amount of uncertainty or error associated with a boundary estimate at a particular distance from an axis of the borehole. By providing a visual display of the uncertainty, a user can make better geosteering decisions.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: January 29, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Emmanuel Legendre, Jacques R. Tabanou, Jean Seydoux, Koji Ito, Fabienne Legendre, Georgi Kutiev
  • Patent number: 8305243
    Abstract: Systems and methods compress data and control data compression in borehole communication. The systems and methods convert original data collected by a sensor from a first domain into a second domain, wherein the original data is associated with one or more properties of an underground formation. A predetermined number of significant coefficients is selected from components of the second domain, wherein the predetermined number of significant coefficients are components of the second domain with largest amplitudes. The selected predetermined number of significant coefficients is quantized via an quantization technique and the selected predetermined number of significant coefficients is encoded into compressed data via an encoder.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: November 6, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Bo Yu, Han Yu
  • Patent number: 8301382
    Abstract: A continuous geomechanically stable trajectory in a subterranean formation is found by calculating at least one reachable stable position relative to a starting position based on geological data indicative of characteristics of the subterranean formation, and iteratively utilizing the calculated reachable stable position as a new starting position. The calculation may be constrained by a boundary including selected distance and direction relative to the starting position, and selected rate of angle change. Within the constraints of the boundary, the possible new trajectories considered may be discretized. The result of the calculations is a three dimensional tree which defines a stability volume. Pruning of at least some branches of the tree may be employed so that not all stable positions have the preselected number of branches, thereby helping to elongate the tree. Either or both of the tree and stability volume are used to select at least one trajectory.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: October 30, 2012
    Assignees: Schlumberger Technology Corporation
    Inventor: Adrian Enrique Rodriquez Herrera
  • Patent number: 8290711
    Abstract: The invention is a method of constructing a three-dimensional fracture density log of a porous formation traversed by fractures and a borehole. A number N of intersections between the fractures and the borehole is measured over a section of the borehole of length L located at a depth d, from observations of the wall of this section. A conditional probability law of the three-dimensional fracture density is then estimated, knowing the number N of intersections. The value of the three-dimensional fracture density at depth d is determined by calculating the mean of this conditional probability law. Finally, the three-dimensional fracture density log is constructed by repeating the previous stages for different depths. A three-dimensional fracture density uncertainty log can also be associated by calculating quantiles of the conditional probability law.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: October 16, 2012
    Assignee: IFP
    Inventors: Jean-François Barthelemy, Martin Guiton, Jean-Marc Daniel
  • Patent number: 8245795
    Abstract: A method of steering a drilling operation of a well using acoustic measurements. The method includes obtaining, using a central processing unit (CPU), a clean-wet matrix line for the well, where the clean-wet matrix line includes a number of normal compressional values, obtaining, using the CPU, the acoustic measurements from at least one logging while drilling tool at a current depth of the drilling operation, where the acoustic measurements include a compressional to shear velocity ratio and a delta-T compressional measurement, and determining, using the CPU, a current phase of the drilling operation by comparing the acoustic measurements to the clean-wet matrix line. The method further includes, in response to determining that the current phase is not a target phase, generating an updated well trajectory for steering the drilling operation toward the target phase and adjusting the drilling operation using the updated well trajectory.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: August 21, 2012
    Assignee: Schlumberger Technology Corporation
    Inventor: Mark Kenneth Dennis
  • Patent number: 8180571
    Abstract: This invention relates to surveying wellbores. In particular this invention provides methods of correcting magnetic surveys for the effects introduced by magnetic mud. The method of the present invention comprises, in broad terms, measuring gravitational and magnetic fields at least one position in the wellbore; comparing the measured fields with theoretical values, and introducing scale factors to adapt the measured values to equal the theoretical values thus making it possible to cope with the effects of magnetic mud.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: May 15, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Anne Holmes
  • Patent number: 8150663
    Abstract: Embodiments of the invention provide a system and method for partitioning data for modelling a geological structure including laterally partitioning the data into multiple columns, where each column may be substantially laterally centered about a dual fiber and vertically partitioning each column at each of multiple intersection points of multiple surfaces and the dual fiber about which the column may be substantially laterally centered.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: April 3, 2012
    Assignee: Paradigm Geophysical (Luxembourg) S.A.R.L.
    Inventor: Jean-Laurent Mallet
  • Patent number: 8095318
    Abstract: 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 imaging measurements. The dip is determined by combining the induction and imaging measurements.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: January 10, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Denis Heliot, Selim Djandji, Pascal Mantran
  • Patent number: 8065085
    Abstract: An apparatus and method for measuring depth, velocity, or both depth and velocity of instrumentation within a wellbore is provided. The apparatus includes a downhole portion movable within the wellbore in a direction generally parallel to the wellbore. The apparatus further includes a first acceleration sensor mounted at a first position within the downhole portion. The first acceleration sensor generates a first signal indicative of a first acceleration in a first direction generally parallel to the wellbore at the first position. The apparatus further includes a second acceleration sensor mounted at a second position within the downhole portion. The second acceleration sensor generates a second signal indicative of a second acceleration in a second direction generally parallel to the wellbore at the second position. The apparatus further includes a bend sensor generating a third signal indicative of an amount of bend of at least a portion of the downhole portion.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: November 22, 2011
    Assignee: GYRODATA, Incorporated
    Inventors: Roger Ekseth, Stephen Victor Mullin, John Lionel Weston
  • Patent number: 8050867
    Abstract: Method for conducting a seismic survey (23) wherein the acquisition parameters are modified as the survey progresses using information (24) from sensors located to monitor structures and fixtures located in the survey area. The sensor output is compared to acceptable levels, and acquisition parameters such as the seismic source strength are adjusted (26) to prevent exceeding the acceptable levels. An automated arbitration scheme (22) is used to resolve conflicting system goals within survey resource constraints.
    Type: Grant
    Filed: May 2, 2007
    Date of Patent: November 1, 2011
    Assignee: ExxonMobil Upstream Research Co.
    Inventors: Marvin L. Johnson, Michael W. Norris
  • Publication number: 20100312478
    Abstract: A method for processing well logging data includes method dividing the well logging data into a number of constant dimensional effect segments, where each constant dimensional effect segment defines an interval having a similar dimensional effect on the log response. The well logging data is taken from a highly deviated well, which may include portions deviated at greater than 90-degrees. The method further includes dividing the constant dimensional effect segments into a number of constant property intervals, each constant dimensional effect segment including at least one corresponding constant property interval, and each constant property interval defining a wellbore distance over which a formation property is substantially constant that results in a log response having a low variance. The method further includes providing the constant property intervals to an output device.
    Type: Application
    Filed: February 25, 2010
    Publication date: December 9, 2010
    Inventors: JACQUES R. TABANOU, John C. Rasmus, John P. Horkowitz, Koji Ito, Christian Stolte, Shahzad Asif, Bernadette Tabanou
  • Patent number: 7805247
    Abstract: Systems and methods in which data compression techniques are utilized to fill a predetermined channel capacity are shown. According to one configuration, event data points within test data are selected for communication via the data communication channel and a data decimator is utilized to identify other data points within the test data to fill or substantially fill the predetermined channel capacity. The foregoing data decimator may employ one or more variables for selecting data for communication, wherein one or more of the variables are preferably adjusted in decimator iterations to select an optimum or otherwise desirable subset of data for communication. Data decimators may additionally or alternatively implement a suitable “growth” function to select the particular data for communication and/or the amount of data communicated.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: September 28, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Kai Hsu, Julian J. Pop
  • Publication number: 20100230095
    Abstract: The invention is a method for inverting reservoir bi-axial anisotropy and identifying complicated fracture/cross-bedding system (104) by using tri-axial induction logs and wellbore survey/image log data. An inversion method is disclosed that uses all nine components that can be measured by tri-axial induction tools (101), plus borehole azimuth and deviation data, to solve for the tri-axial induction response in an arbitrary anisotropic formation due to the non-orthogonal bedding plane and fracture plane (or cross bedding plane). A mathematical formula is provided relating the conductivity tensor in the tool's reference frame to the conductivity tensor in a reference plane associated with the fracture/cross bedding planes (102). This equation is inverted (103) to yield the conductivity tensor components in the fracture/cross bedding coordinate system, along with dip and azimuth angles for both the fracture/cross bedding planes and the tool.
    Type: Application
    Filed: October 8, 2008
    Publication date: September 16, 2010
    Inventor: Hezhu Yin
  • Publication number: 20100228484
    Abstract: Systems and methods which provide accurate formation information regardless of formation and borehole geometry, including those associated with high angle and horizontal wells, are shown. In providing processing of logging or image data, such as may be provided by a density tool or other tool, according to embodiments, formation attributes or features (e.g., density and dip angle) are estimated using raw data provided by a the tool. The foregoing estimations may thereafter be iteratively refined using effective volume of interest (EVOI) information. According to embodiments, depth boundaries of formation information provided by the tool are shifted as a function of azimuth for correct spatial positioning of formation features using EVOI information. Processing of formation attribute or feature data provided by embodiments may be used with respect to various tool configurations, including configurations with and without borehole standoff.
    Type: Application
    Filed: October 10, 2008
    Publication date: September 9, 2010
    Applicant: Exxon-Mobile, Upstream Research Company
    Inventors: Hezhu Yin, Pingjun Guo, Alberto X. Mendoza
  • Patent number: 7765067
    Abstract: A multicomponent induction logging tool is used on a MWD bottomhole assembly. Multifrequency focusing that accounts for the finite, nonzero, conductivity of the mandrel is applied. Using separation of modes, the principal components and relative dip angles in an earth formation are determined. The results are used for reservoir navigation in an earth formation.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: July 27, 2010
    Assignee: Baker Hughes Incorporated
    Inventors: Leonty A. Tabarovsky, Michael B. Rabinovich
  • Publication number: 20100161228
    Abstract: 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 imaging measurements. The dip is determined by combining the induction and imaging measurements.
    Type: Application
    Filed: December 19, 2008
    Publication date: June 24, 2010
    Inventors: Denis Heliot, Selim Djandji, Pascal Mantran
  • Publication number: 20100049443
    Abstract: A data reduction method for transmission of a borehole image to the surface of the earth using restricted band widths of LWD telemetry systems. The data reduction method is based on the measurement physics rather than mathematical compression algorithms. Measured data from a sensor are fitted, within the logging tool, to a response function relating sensor response to a parameter of interest. The coefficients of the fitted response function are scaled and then telemetered to the surface. The measured data are reconstructed at the surface by combining the telemetered coefficients with the response function. A borehole image is formed by combining reconstructed reduced data. Parameters of dipping beds intersecting the borehole can be determined from the coefficients.
    Type: Application
    Filed: August 21, 2008
    Publication date: February 25, 2010
    Applicant: PRECISION ENERGY SERVICES, INC.
    Inventor: Medhat W. Mickael
  • Patent number: 7647182
    Abstract: 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, magnetic or electrical values as known in the art. The parameters of interest may be transmitted to the surface at a plurality of resolutions using a multi-resolution image compression method. Parameters of interest are formed into a plurality of Cost Functions from which Regions of Interest are determined to resolve characteristics of the Features of interest within the Regions. Feature characteristics may be determined to obtain time or depth positions of bed boundaries and borehole Dip Angle relative to subsurface structures, as well borehole and subsurface structure orientation. Characteristics of the Features include time, depth, and geometries of the subsurface such as structural dip, thickness, and lithologies.
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: January 12, 2010
    Assignee: Baker Hughes Incorporated
    Inventors: Gamal A. Hassan, Philip L. Kurkoski
  • Patent number: 7640111
    Abstract: 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 dip trends in the formation. The dip trends are then examined for indications of the presence of certain depositional events, such as build-ups, flow directions instances of scour and fill, direction to thalweg, parallel bedding, indications of fault, and the like. If lithofacies data is available the disclosed method/system can also analyze this data to identify the presence of interbedded sequences and condensed sections. Such an integrated solution saves geoscientists and interpreters an enormous amount of time compared to existing interpretation techniques, allowing them to be much more productive. The disclosed system/method may also be used to help train new and less experienced geoscientists and interpreters.
    Type: Grant
    Filed: July 19, 2007
    Date of Patent: December 29, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: George R. Kear, Anish Kumar, David Williamson, Gamal E. Shehab
  • Patent number: 7546209
    Abstract: A method of drilling a well. The method includes calculating an estimated formation dip angle, wherein said estimated formation dip angle being based on offset well data, seismic data, core data, pressure data. Next, the method includes drilling a well with a logging while drilling means so that real time logging data is generated along with drilling data and calculating an instantaneous formation dip angle. Next, real time logging data is obtained and a target formation window is projected ahead of the well path that includes a top of formation and a bottom formation. The method includes monitoring the real time logging and drilling data and drilling the well through the target formation window. The method further includes changing the estimated instantaneous formation dip based on the obtained data and adjusting the target formation top and bottom window.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: June 9, 2009
    Inventor: Danny T. Williams
  • Publication number: 20090037110
    Abstract: This invention relates to surveying wellbores. In particular this invention provides methods of correcting magnetic surveys for the effects introduced by magnetic mud. The method of the present invention comprises, in broad terms, measuring gravitational and magnetic fields at least one position in the wellbore; comparing the measured fields with theoretical values, and introducing scale factors to adapt the measured values to equal the theoretical values thus making it possible to cope with the effects of magnetic mud.
    Type: Application
    Filed: June 21, 2005
    Publication date: February 5, 2009
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventor: Anne Holmes
  • Patent number: 7487047
    Abstract: The present invention provides method for detecting the possible presence of surfaces layers of diagenetic origin by establishing divergence between well signatures such as logs, particularly for use in predominantly carbonate reservoirs.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: February 3, 2009
    Assignee: Schlumberger Technology Corporation
    Inventor: Rachel Wood
  • Publication number: 20090030616
    Abstract: A method for forming a borehole image of an azimuthally sensitive borehole or formation parameter is disclosed. Such a borehole image may be formed, for example, by processing logging sensor data with a predetermined sensor response function (also referred to herein as a probability density function) to acquire probabilistically distributed sensor data. The sensor data may be distributed in either one-dimension (azimuthal) or two-dimensions (azimuthal and axial). Certain embodiments of this invention may be advantageously utilized in LWD imaging applications and provide for superior image resolution and noise rejection as compared to prior art binning techniques. Exemplary embodiments of the invention also advantageously conserve logging sensor data such that integration of the distributed data over the entire circumference of the tool provides a non-azimuthally sensitive logging measurement.
    Type: Application
    Filed: July 25, 2007
    Publication date: January 29, 2009
    Applicant: PathFinder Energy Services, Inc.
    Inventor: Junichi Sugiura
  • Publication number: 20080275648
    Abstract: A method for determining a list of survey points for a drilling well includes a feedback loop in which one or more measured parameters are compared with computed or derived parameters. The computed parameters are typically obtained from other/additional measurements. For example, in one exemplary embodiment of the invention, a magnetic least distance vector determined via magnetic ranging is compared with a geometric least distance vector computed from conventional borehole surveying measurements. Estimates of the drilling well azimuth and/or inclination may be adjusted to yield a good agreement between the magnetic and geometric least distance vectors. Exemplary embodiments of the present invention advantageously provide for a substantially real-time determination of a definitive well path for a drilling well as well as a substantially real-time relative placement of the drilling well with respect to a target well.
    Type: Application
    Filed: May 2, 2008
    Publication date: November 6, 2008
    Applicant: PathFinder Energy Services, Inc.
    Inventor: Herbert M. J. Illfelder