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Class Information
Number: 702/7
Name: Data processing: measuring, calibrating, or testing > Measurement system in a specific environment > Earth science > Well logging or borehole study > By induction or resistivity logging tool
Description: Subject matter comprising means having transmitter and receiver coils or electrodes arranged for taking measurements, at various depth of the borehole, representing electrical characteristic of the earth formations or planar layers surrounding the borehole (e.g., conductivity, resistivity, dielectric constant).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7619540 |
Apparatus and methods for determining isotropic and anisotropic formation resistivity in the presence of invasion |
Nov. 17, 2009 |
| 7620534 |
Sound enabling computerized system for real time reservoir model calibration using field surveillance data |
Nov. 17, 2009 |
| 7617050 |
Method for quantifying resistivity and hydrocarbon saturation in thin bed formations |
Nov. 10, 2009 |
| 7609066 |
Apparatus and method for measuring micro-resistivity anisotropy |
Oct. 27, 2009 |
| 7599797 |
Method of mitigating risk of well collision in a field |
Oct. 6, 2009 |
| 7576543 |
Apparatus and method for resistivity measurements during rotational drilling |
Aug. 18, 2009 |
| 7567869 |
Induction tool for detail evaluation of near borehole zone |
Jul. 28, 2009 |
| 7565245 |
Electromagnetic surveying |
Jul. 21, 2009 |
| 7565244 |
Method and system for removing effects of conductive casings and wellbore and surface heterogeneity in electromagnetic imaging surveys |
Jul. 21, 2009 |
| 7557579 |
Electromagnetic wave resistivity tool having a tilted antenna for determining the horizontal and vertical resistivities and relative dip angle in anisotropic earth formations |
Jul. 7, 2009 |
| 7557580 |
Electromagnetic wave resistivity tool having a tilted antenna for geosteering within a desired payzone |
Jul. 7, 2009 |
| 7555390 |
Petrophysical interpretation of multipass array resistivity data obtained while drilling |
Jun. 30, 2009 |
| 7542851 |
Electromagnetic surveying for hydrocarbon reservoirs |
Jun. 2, 2009 |
| 7536262 |
Kalman filter approach to processing electromagnetic data |
May. 19, 2009 |
| 7536261 |
Anti-symmetrized electromagnetic measurements |
May. 19, 2009 |
| 7532983 |
Method and apparatus for measuring the wettability of geological formations |
May. 12, 2009 |
| 7529624 |
Method and apparatus for remote characterization of faults in the vicinity of boreholes |
May. 5, 2009 |
| 7519474 |
Method and apparatus for measuring the resistivity of electromagnetic waves of the earth |
Apr. 14, 2009 |
| 7505851 |
Use of multi-component measurements in delineating geology of deep-water sediments |
Mar. 17, 2009 |
| 7502691 |
Method and computer program product for determining a degree of similarity between well log data |
Mar. 10, 2009 |
| 7496451 |
Real time data quality control and determination of formation angles from multicomponent induction measurements using neural networks |
Feb. 24, 2009 |
| 7483793 |
Method of generating a deep resistivity image in LWD measurements |
Jan. 27, 2009 |
| 7471088 |
Elimination of the anisotropy effect in LWD azimuthal resistivity tool data |
Dec. 30, 2008 |
| 7457707 |
Method for determining an effective formation conductivity for induction log borehole correction |
Nov. 25, 2008 |
| 7427862 |
Increasing the resolution of electromagnetic tools for resistivity evaluations in near borehole zones |
Sep. 23, 2008 |
| 7424365 |
Apparent dip angle calculation and image compression based on region of interest |
Sep. 9, 2008 |
| 7414391 |
Electromagnetic logging tool calibration system |
Aug. 19, 2008 |
| 7400977 |
Computing values for surveying a subterranean structure based on measurements according to different electromagnetic survey techniques |
Jul. 15, 2008 |
| 7398180 |
Vehicle technician time clock tool |
Jul. 8, 2008 |
| 7392137 |
Determination of formation anistrophy, dip and azimuth |
Jun. 24, 2008 |
| 7386430 |
Method of correcting triaxial induction arrays for borehole effect |
Jun. 10, 2008 |
| 7376515 |
System and method for CSEM exploration in polar regions |
May. 20, 2008 |
| 7376514 |
Method for determining properties of earth formations using dielectric permittivity measurements |
May. 20, 2008 |
| 7366616 |
Computer-based method for while-drilling modeling and visualization of layered subterranean earth formations |
Apr. 29, 2008 |
| 7363159 |
Method of determining resistivity and/or dielectric values of an earth formation as a function of position within the earth formation |
Apr. 22, 2008 |
| 7363160 |
Technique for determining properties of earth formations using dielectric permittivity measurements |
Apr. 22, 2008 |
| 7363161 |
Pore-scale geometric models for interpretation of downhole formation evaluation data |
Apr. 22, 2008 |
| 7359800 |
Determination of fracture orientation and length using multi-component and multi-array induction data |
Apr. 15, 2008 |
| 7359845 |
Method and system for predictive stratigraphy images |
Apr. 15, 2008 |
| 7356411 |
Method for acquiring and interpreting transient electromagnetic measurements |
Apr. 8, 2008 |
| 7336080 |
Method and apparatus for use of the real component of a magnetic field of multicomponent resistivity measurements |
Feb. 26, 2008 |
| 7333893 |
Method for spatially interpreting electromagnetic data using multiple frequencies |
Feb. 19, 2008 |
| 7333891 |
Correction of cross-component induction measurements for misalignment using comparison of the XY formation response |
Feb. 19, 2008 |
| 7324899 |
Geophysical technique for mineral exploration and discrimination based on electromagnetic methods and associated systems |
Jan. 29, 2008 |
| 7324898 |
System and method for determining a more accurate resistivity model of a geological formation using time-lapse well logging data |
Jan. 29, 2008 |
| 7317991 |
Multicomponent induction measurements in cross-bedded and weak anisotropy approximation |
Jan. 8, 2008 |
| 7313479 |
Method for real-time well-site interpretation of array resistivity log data in vertical and deviated wells |
Dec. 25, 2007 |
| 7302375 |
Simulation of processes, devices and circuits by a modified newton method |
Nov. 27, 2007 |
| 7299131 |
Induction resistivity imaging principles and devices in oil based mud |
Nov. 20, 2007 |
| 7295927 |
Determining water saturation for oil bearing thin-bedded formation having anisotropic resistivity |
Nov. 13, 2007 |
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