Patent Assignment
Reel/Frame 029143/0015
Assignment of Assignor's Interest
Recorded: 2012-10-17
Pages: 28
Assignor
SMITH INTERNATIONAL, INC.
Executed: 2012-10-09
Assignee
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE, SUGAR LAND, TEXAS, 77478
Covered Properties
(140)
Acoustic Attenuator, Well Logging Apparatus and Method of Well Logging
Patent:
5,510,582 →
Application:
08/398,979 →
Standoff Compensation for Acoustic Logging While Drilling Systems
Patent:
5,726,951 →
Application:
08/430,822 →
Acoustic Transducer for Lwd Tool
Patent:
5,644,186 →
Application:
08/483,112 →
Downhole Tool for Controlling the Drilling Course of a Borehole
Patent:
5,603,386 →
Application:
08/524,953 →
Drill Motor Coupling for Misaligned Rotating Shafts
Patent:
5,651,737 →
Application:
08/588,289 →
Cancellation of Tool Mode Signal from Combined Signal
Patent:
5,780,784 →
Application:
08/733,367 →
Acoustic Lwd Tool Having Receiver Calibration Capabilities
Patent:
6,208,585 →
Application:
09/105,344 →
Technique for Signal Detection Using Adaptive Filtering in Mud Pulse Telemetry
Patent:
6,308,562 →
Application:
09/469,989 →
Method of and apparatus for independently determining the resistivity and/or dielectric constant of an earth formation
Patent:
6,366,858 →
Application:
09/608,205 →
Adjustable Housing for a Mud Motor
Method of Determining Resistivity of an Earth Formation with Phase Resistivity Evaluation Based on a Phase Shift Measurement and Attenuation Resistivity Evaluation Based on an Attenuation Measurement and the Phase Shift Measurement
Method of Determining Resistivity and/or Dielectric Values of an Earth Formation as a Function of Position Within the Earth Formation
Method of and Apparatus for Independently Determining the Resistivity and/or Dielectric Constant of an Earth Formation
Sprung Member and Actuator for Downhole Tools
Estimation of Formation Porosity Using Water Measurement
Method of and Apparatus for Directional Drilling
Passive Ranging Techniques in Borehole Surveying
Supplemental Referencing Techniques in Borehole Surveying
Downhole Referencing Techniques in Borehole Surveying
Optimized Battery Life in Multiple Battery Applications
Series-Resonant Tuning of a Downhole Loop Antenna
Transverse Magnetization of Casing String Tubulars
Continuous on-Bottom Directional Drilling Method and System
Matching Layer Assembly for a Downhole Acoustic Sensor
Composite Backing Layer for a Downhole Acoustic Sensor
Method of and Apparatus for Directional Drilling
Acoustic Sensor for Downhole Measurement Tool
Pressure Controlled Fluid Sampling Apparatus and Method
Adjustment for Frequency Dispersion Effects in Electromagnetic Logging Data
Method of Estimating Electrical Parameters of an Earth Formation with a Simplified Measurement Device Model
Well Twinning Techniques in Borehole Surveying
Electrical Connector Useful in Wet Environments
Shear Wave Velocity Determination Using Multi-Pole Wave
Enhanced Measurement of Azimuthal Dependence of Subterranean Parameters
Determining a Borehole Azimuth from Tool Face Measurements
Control Method for Downhole Steering Tool
Estimation of Borehole Geometry Parameters and Lateral Tool Displacements
Downhole Rotatable-Shaft Connector Assembly and Method
Drill String Rotation Encoding
Determination of Borehole Azimuth and the Azimuthal Dependence of Borehole Parameters
Filter Assembly Having a Bypass Passageway and Method
Spring Mechanism for Downhole Steering Tool Blades
Programming Method for Controlling a Downhole Steering Tool
Azimuthally Sensitive Receiver Array for an Electromagnetic Measurement Tool
Azimuthally Focused Electromagnetic Measurement Tool
Adjustment for Frequency Dispersion Effects in Electromagnetic Logging Data
Well Logging Apparatus for Obtaining Azimuthally Sensitive Formation Resistivity Measurements
Shear Wave Velocity Determination Using Evanescent Shear Wave Arrivals
Downhole Steering Tool Having a Non-Rotating Bendable Section
Measurement Tool for Obtaining Tool Face on a Rotating Drill Collar
Rotary Steerable Tool Including Drill String Rotation Measurement Apparatus
Shear Wave Velocity Determination Using Circumferentially Aligned Transmitter and Receiver Elements
Magnetization of Target Well Casing Strings Tubulars for Enhanced Passive Ranging
Method for Locating Casing Joints Using Measurement While Drilling Tool
Enhanced Measurement of Azimuthal Dependence of Subterranean Parameters with Filters and/or Discretely Sampled Data
Piezocomposite Transducer for a Downhole Measurement Tool
Series-Resonant Tuning of an Lwd Receiver
Drilling Fluid Pressure Pulse Detection Using a Differential Transducer
Apparatus and Method for Downhole Dynamics Measurements
Determination of Borehole Azimuth and the Azimuthal Dependence of Borehole Parameters
Apparatus and Method for Magnetizing Casing String Tubulars
Method of Directional Drilling with Steerable Drilling Motor
Integrated Circuit Packages Including Damming and Charge Protection Cover for Harsh Environments
Closed-Loop Control of Hydraulic Pressure in a Downhole Steering Tool
Apparatus and Method for Determining Drilling Fluid Acoustic Properties
Linear Position Sensor for Downhole Tools and Method of Use
Patent:
7,377,333 →
Application:
11/714,966 →
Distance Determination from a Magnetically Patterned Target Well
Control Method for Downhole Steering Tool
Gravity Azimuth Measurement at a Non-Rotating Housing
Angular Position Sensor for a Downhole Tool
Probablistic Imaging with Azimuthally Sensitive Mwd/Lwd Sensors
Non-Contact Capacitive Datalink for a Downhole Assembly
Data Compression Method for Use in Downhole Applications
Downhole Hydraulic Control System
Forced Balanced System
Data Compression Transforms for Use in Downhole Applications
Method of Optimizing a Well Path During Drilling
Logging While Drilling Tool for Obtaining Azimuthally Sensitive Formation Resistivity Measurements
Non-Azimuthal and Azimuthal Formation Evaluation Measurement in a Slowly Rotating Housing
Closed-Loop Physical Caliper Measurements and Directional Drilling Method
Caliper Logging Using Circumferentially Spaced and/or Angled Transducer Elements
Closed-Loop Control of Rotary Steerable Blades
Non-Planar Antennae for Directional Resistivity Logging
Apparatus and Method for Removing Anisotropy Effect from Directional Resistivity Measurements
Method for Magnetizing Casing String Tubulars
Magnetized Casing String Tubulars
Magnetization of Target Well Casing String Tubulars for Enhanced Passive Ranging
Method of Magnetizing Casing String Tubulars for Enhanced Passive Ranging
Directional Resistivity Imaging Using Harmonic Representations
Methods for Making Directional Resistivity Measurements
Compensated Directional Resistivity Measurements
Cyclic Noise Removal in Borehole Imaging
Hydraulically Locking Stabilizer
Slip Ring Apparatus for a Rotary Steerable Tool
Telemetry Coding and Surface Detection for a Mud Pulser
Drilling System for Making Lwd Measurements Ahead of the Bit
Directional Resistivity Antenna Shield
Reduction of Tool Mode and Drilling Noise in Acoustic Lwd
Apparatus and Method for Downhole Electromagnetic Measurement While Drilling
Microresistivity Imaging at Multiple Depths of Investigation
Microresistivity Imaging in Conductive and Nonconductive Drilling Fluid
Logging Tool Employing a Monopole Current Injection Electrode for Microresistivity Imaging
Microresistivity Anisotropy Logging Tool Employing a Monopole Current Injection Electrode
Calibration Method for a Microresistivity Logging Tool
Binning Method for Borehole Imaging
Downhole Downlinking System Employing a Differential Pressure Transducer
Rotary Steerable Tool Employing a Timed Connection
Microresistivity Imaging with Differentially Raised Electrodes
Application:
12/699,111 →
Publication:
US 2011/0187374
Downhole Sonic Logging Tool Including Irregularly Spaced Receivers
Completion String Deployment in a Subterranean Well
Relative and Absolute Error Models for Subterranean Wells
Application:
12/725,578 →
Publication:
US 2010/0241410
Enhanced Passive Ranging Methodology for Well Twinning
Unipole and Bipole Acoustic Logging While Drilling Tools
Methods for Making Acoustic Anisotropy Logging While Drilling Measurements
Acoustic Logging While Drilling Tool Having Raised Transducers
Downlinking Communication System and Method
Acoustic Waveform Stacking Using Azimuthal and/or Standoff Binning
Downhole Closed-Loop Geosteering Methodology
Method of Acoustic Ranging
Cyclic Noise Removal in Borehole Imaging
Method of Correcting Resistivity Measurements for Toll Bending Effects
Methods for Improved Active Ranging and Target Well Magnetization
Electromagnetic Array for Subterranean Magnetic Ranging Operations
Application:
12/962,109 →
Publication:
US 2012/0139530
Synchronization Methods for Downhole Communication
Application:
12/975,553 →
Publication:
US 2012/0163523
Method of Directional Resistivity Logging
Method and Apparatus for Neutron Logging Using a Position Sensitive Neutron Detector
Borehole Independent Neutron Porosity Measurement
Borehole Image Reconstruction Using Inversion and Tool Spatial Sensitivity Functions
Downlinking Communication System and Method Using Signal Transition Detection
Downhole Dynamics Measurements Using Rotating Navigation Sensors
High Resolution Lwd Imaging
Dynamic Borehole Azimuth Measurements
Non-Contact Capacitive Datalink for a Downhole Assembly
Magnetic Ranging Tool and Method
Utilization of Dynamic Downhole Surveying Measurements
Closed Loop Well Twinning Methods
Method For Improving Wellbore Survey Accuracy And Placement
Method for Reducing Stick-Slip During Wellbore Drilling
At-Bit Magnetic Ranging and Surveying
At-Bit Magnetic Ranging and Surveying
Application:
61/508,732 →