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Class Information
Number: 73/152.06
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) > Density, porosity, or permeability > Including oil, gas, or water saturation
Description: Subject matter wherein the determination of the characteristic of the borehole includes measuring a maximum impregnation by oil, gas, or water of a bulk formation of a borehole or of selected constituents of a formation of a borehole.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7617050 |
Method for quantifying resistivity and hydrocarbon saturation in thin bed formations |
Nov. 10, 2009 |
| 7603236 |
Method to determine fluid phase distribution and quantify holdup in a wellbore |
Oct. 13, 2009 |
| 7439495 |
Nuclear imaging probe |
Oct. 21, 2008 |
| 7386430 |
Method of correcting triaxial induction arrays for borehole effect |
Jun. 10, 2008 |
| 7340384 |
Process for determining the variation in the relative permeability of at least one fluid in a reservoir |
Mar. 4, 2008 |
| 7062957 |
Percolation test apparatus |
Jun. 20, 2006 |
| 6976386 |
Tensiometer methods |
Dec. 20, 2005 |
| 6772621 |
Tensiometer methods and apparatus |
Aug. 10, 2004 |
| 6615653 |
In situ method for determining soil liquefaction tendency and its prevention by electro-osmosis |
Sep. 9, 2003 |
| 6601461 |
Multi-phase compensated spinner flow meter |
Aug. 5, 2003 |
| 6490531 |
Optimized method for determining physical parameters of a sample subjected to centrifugation |
Dec. 3, 2002 |
| 6453727 |
Method of evaluating physical parameters of an underground reservoir from rock cuttings taken therefrom |
Sep. 24, 2002 |
| 6380745 |
Electrical geophysical apparatus for determining the density of porous materials and establishing geo-electric constants of porous material |
Apr. 30, 2002 |
| 6263726 |
Sidewall tensiometer and method of determining soil moisture potential in below-grade earthen soil |
Jul. 24, 2001 |
| 5969240 |
Methods for determining irreducible water resistivity and estimating oil well reserves |
Oct. 19, 1999 |
| 5909772 |
Apparatus and method for estimating liquid yield of a gas/condensate reservoir |
Jun. 8, 1999 |
| 5861750 |
Geophysical methods and apparatus for determining the hydraulic conductivity of porous materials |
Jan. 19, 1999 |
| 5861751 |
Electrical geophysical methods and apparatus for determining the in-situ density of porous material |
Jan. 19, 1999 |
| 5829520 |
Method and apparatus for testing, completion and/or maintaining wellbores using a sensor device |
Nov. 3, 1998 |
| 5679885 |
Process and device for measuring physical parameters of porous fluid wet samples |
Oct. 21, 1997 |
| 5663499 |
Method for estimating permeability from multi-array induction logs |
Sep. 2, 1997 |
| 5279153 |
Apparatus for determining horizontal and/or vertical permeability of an earth formation |
Jan. 18, 1994 |
| 5269180 |
Borehole tool, procedures, and interpretation for making permeability measurements of subsurface formations |
Dec. 14, 1993 |
| 5265015 |
Determining horizontal and/or vertical permeability of an earth formation |
Nov. 23, 1993 |
| 5251286 |
Method for estimating formation permeability from wireline logs using neural networks |
Oct. 5, 1993 |
| 5159569 |
Formation evaluation from thermal properties |
Oct. 27, 1992 |
| 4903207 |
Method for determining reservoir bulk volume of hydrocarbons from reservoir porosity and distance to oil-water contact level |
Feb. 20, 1990 |
| 4786873 |
Method for evaluating water saturation in petroleum reservoirs from dielectric permittivity |
Nov. 22, 1988 |
| 4740077 |
Centrifugal measurement of core samples |
Apr. 26, 1988 |
| 4669299 |
Measuring relative permeability to steam in cores of water and oil containing reservoir formations |
Jun. 2, 1987 |
| 4644283 |
In-situ method for determining pore size distribution, capillary pressure and permeability |
Feb. 17, 1987 |
| 4594887 |
Method and apparatus for determining characteristics of clay-bearing formations |
Jun. 17, 1986 |
| 4584874 |
Method for determining porosity, clay content and mode of distribution in gas and oil bearing shaly sand reservoirs |
Apr. 29, 1986 |
| 4517836 |
Method for determining oil saturation in a subsurface formation |
May. 21, 1985 |
| 4506548 |
Method of locating potential low water cut hydrocarbon reservoirs in high water saturation sands |
Mar. 26, 1985 |
| 4495604 |
Machine method for determining the presence and location of hydrocarbon deposits within a subsurface earth formation |
Jan. 22, 1985 |
| 4486714 |
Method and apparatus for measuring relative permeability and water saturation of a core of earthen material |
Dec. 4, 1984 |
| 4482634 |
Chemical flood testing method |
Nov. 13, 1984 |
| 4399693 |
Applications of borehole gravimetric techniques to determine residual oil saturation |
Aug. 23, 1983 |
| 4353248 |
Well logging to determine the nature and extent of mud filtrate penetration |
Oct. 12, 1982 |
| 4338664 |
Method of evaluating formations traversed by a borehole |
Jul. 6, 1982 |
| 4233839 |
Apparatus and method for determining characteristics of subsurface formations |
Nov. 18, 1980 |
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