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Class Information
Number: 73/152.02
Name: Measuring and testing > Borehole or drilling (e.g., drill loading factor, drilling rate, rate of fluid flow) > Formation logging (e.g., borehole studies of pressure derivatives or of pressure-temperature derivatives)
Description: Subject matter wherein the determination of the physical characteristic of earth both below the surface of the earth and along a surface forming the periphery of the borehole is made by measuring a parameter at plural positions within the borehole.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7574325 |
Methods to monitor system sensor and actuator health and performance |
Aug. 11, 2009 |
| 7567869 |
Induction tool for detail evaluation of near borehole zone |
Jul. 28, 2009 |
| 7565833 |
Automatic adjustment of NMR pulse sequence to optimize SNR based on real time analysis |
Jul. 28, 2009 |
| 7536262 |
Kalman filter approach to processing electromagnetic data |
May. 19, 2009 |
| 7439495 |
Nuclear imaging probe |
Oct. 21, 2008 |
| 7418865 |
Method and apparatus for ultrasound velocity measurements in drilling fluids |
Sep. 2, 2008 |
| 7328610 |
Method for measuring formation properties with a formation tester |
Feb. 12, 2008 |
| 7303009 |
Method to detect low salinity injection water encroachment into oil formations |
Dec. 4, 2007 |
| 7301338 |
Automatic adjustment of NMR pulse sequence to optimize SNR based on real time analysis |
Nov. 27, 2007 |
| 7301852 |
Methods of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications |
Nov. 27, 2007 |
| 7263880 |
Method for measuring formation properties with a time-limited formation test |
Sep. 4, 2007 |
| 7187784 |
Borescope for drilled shaft inspection |
Mar. 6, 2007 |
| 7168310 |
Accuracy of shaly sand formation evaluation |
Jan. 30, 2007 |
| 7117733 |
Dynamic logging speed |
Oct. 10, 2006 |
| 7117734 |
Method for measuring formation properties with a time-limited formation test |
Oct. 10, 2006 |
| 7059180 |
Water cut rate of change analytic method |
Jun. 13, 2006 |
| 7024930 |
Method for measuring formation properties with a time-limited formation test |
Apr. 11, 2006 |
| 6879947 |
Method for optimizing the bit design for a well bore |
Apr. 12, 2005 |
| 6860147 |
Process for predicting porosity and permeability of a coal bed |
Mar. 1, 2005 |
| 6843119 |
Apparatus for measuring and recording data from boreholes |
Jan. 18, 2005 |
| 6843316 |
Method for improving well quality |
Jan. 18, 2005 |
| 6842400 |
Acoustic logging apparatus and method |
Jan. 11, 2005 |
| 6832515 |
Method for measuring formation properties with a time-limited formation test |
Dec. 21, 2004 |
| 6793025 |
Double emulsion based drilling fluids |
Sep. 21, 2004 |
| 6651739 |
Medium frequency pseudo noise geological radar |
Nov. 25, 2003 |
| 6625566 |
Pressure drop calculation method and system taking account of thermal effects |
Sep. 23, 2003 |
| 6618675 |
Speed correction using cable tension |
Sep. 9, 2003 |
| 6584837 |
Method and apparatus for determining oriented density measurements including stand-off corrections |
Jul. 1, 2003 |
| 6543280 |
Remote sensing and measurement of distances along a borehole |
Apr. 8, 2003 |
| 6405809 |
Conductive medium for openhold logging and logging while drilling |
Jun. 18, 2002 |
| 6351987 |
Fiber optic pressure sensor for DC pressure and temperature |
Mar. 5, 2002 |
| 6349595 |
Method for optimizing drill bit design parameters |
Feb. 26, 2002 |
| 6308561 |
Well logging apparatus |
Oct. 30, 2001 |
| 6295867 |
Geological sample sub |
Oct. 2, 2001 |
| 6263730 |
Downhole pump strainer data recording device and method |
Jul. 24, 2001 |
| 6250138 |
Determining fluid bubble point pressure using an adjustable choke |
Jun. 26, 2001 |
| 6164126 |
Earth formation pressure measurement with penetrating probe |
Dec. 26, 2000 |
| 6011557 |
Method for obtaining a representation of a geological structure |
Jan. 4, 2000 |
| 5959203 |
Method for automatic identification of the nature of a hydrocarbon production well |
Sep. 28, 1999 |
| 5899958 |
Logging while drilling borehole imaging and dipmeter device |
May. 4, 1999 |
| 5900545 |
Strain monitoring system |
May. 4, 1999 |
| 5828981 |
Generating pore types and synthetic capillary pressure curves from wireline logs using neural networks |
Oct. 27, 1998 |
| 5812068 |
Drilling system with downhole apparatus for determining parameters of interest and for adjusting drilling direction in response thereto |
Sep. 22, 1998 |
| 5784004 |
Apparatuses and systems for reducing power consumption in remote sensing applications |
Jul. 21, 1998 |
| 5753813 |
Apparatus and method for monitoring formation compaction with improved accuracy |
May. 19, 1998 |
| 5731550 |
Acoustic dipole well logging instrument |
Mar. 24, 1998 |
| 5699246 |
Method to estimate a corrected response of a measurement apparatus relative to a set of known responses and observed measurements |
Dec. 16, 1997 |
| 5689068 |
Determination of the porosity and permeability of a geological formation from an electrofiltering phenomenon |
Nov. 18, 1997 |
| 5675088 |
Method and apparatus for automatic monitoring of tectonic stresses and quantitative forecast of shallow earthquakes |
Oct. 7, 1997 |
| 5659135 |
Method for modeling a stratified and fractured geologic environment |
Aug. 19, 1997 |
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