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Class Information
Number: 73/152.19
Name: Measuring and testing > Borehole or drilling (e.g., drill loading factor, drilling rate, rate of fluid flow) > Fluid flow measuring or fluid analysis > During drilling
Description: Subject matter wherein the determination of the characteristic of the borehole, the casing, or the drill rigging is made during the process of making or enlarging an elongated hole in the earth in situ by dislocating a solid material in the earth.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7565835 |
Method and apparatus for balanced pressure sampling |
Jul. 28, 2009 |
| 7556106 |
Drilling fluid monitor |
Jul. 7, 2009 |
| 7441609 |
Method of decreasing the disintegration of shale-containing cuttings and drilling fluid therefor |
Oct. 28, 2008 |
| 7438128 |
Identifying zones of origin of annular gas pressure |
Oct. 21, 2008 |
| 7395691 |
Method and apparatus for determining gas content of subsurface fluids for oil and gas exploration |
Jul. 8, 2008 |
| 7318343 |
System for detecting gas in a wellbore during drilling |
Jan. 15, 2008 |
| 7261168 |
Methods and apparatus for using formation property data |
Aug. 28, 2007 |
| 7210342 |
Method and apparatus for determining gas content of subsurface fluids for oil and gas exploration |
May. 1, 2007 |
| 7137459 |
Silicate drilling fluid and method of drilling a well therewith |
Nov. 21, 2006 |
| 7124819 |
Downhole fluid pumping apparatus and method |
Oct. 24, 2006 |
| 7100689 |
Sensor apparatus and method of using same |
Sep. 5, 2006 |
| 7096976 |
Drilling formation tester, apparatus and methods of testing and monitoring status of tester |
Aug. 29, 2006 |
| 7093674 |
Drilling formation tester, apparatus and methods of testing and monitoring status of tester |
Aug. 22, 2006 |
| 6968905 |
Distributed control system |
Nov. 29, 2005 |
| 6769295 |
Continuous measurement of the rheological characteristics of well fluids |
Aug. 3, 2004 |
| 6729399 |
Method and apparatus for determining reservoir characteristics |
May. 4, 2004 |
| 6662644 |
Formation fluid sampling and hydraulic testing tool |
Dec. 16, 2003 |
| 6530428 |
Method and apparatus for in-situ production well testing |
Mar. 11, 2003 |
| 6488085 |
Method and apparatus for well logging and well control |
Dec. 3, 2002 |
| 6443001 |
Method and system for extracting, analyzing and measuring constituents transported by a bore fluid |
Sep. 3, 2002 |
| 6401529 |
Apparatus and method for determining constituent composition of a produced fluid |
Jun. 11, 2002 |
| 6371204 |
Underground well kick detector |
Apr. 16, 2002 |
| 6343507 |
Method to improve the quality of a formation fluid sample |
Feb. 5, 2002 |
| 6286367 |
Method of evaluating the effluent of a hydrocarbon well by means of a multiphase flowmeter, and installation implementing the same |
Sep. 11, 2001 |
| 6263729 |
Method of determining the hydrocarbon flow rate in a multi-phase fluid flowing in an oil well |
Jul. 24, 2001 |
| 6251288 |
Methods of drilling a bore hole and dehydrating drilling fluids |
Jun. 26, 2001 |
| 6178815 |
Method to improve the quality of a formation fluid sample |
Jan. 30, 2001 |
| 6148664 |
Method and apparatus for shutting in a well while leaving drill stem in the borehole |
Nov. 21, 2000 |
| 5864057 |
Method and apparatus for conducting well production tests |
Jan. 26, 1999 |
| 5803186 |
Formation isolation and testing apparatus and method |
Sep. 8, 1998 |
| 5736637 |
Downhole multiphase flow sensor |
Apr. 7, 1998 |
| 5686299 |
Method and apparatus for determining nutrient stimulation of biological processes |
Nov. 11, 1997 |
| RE34975 |
Ultrasonic measurement apparatus |
Jun. 20, 1995 |
| 5277263 |
Method for measuring formation fluids in drilling fluid |
Jan. 11, 1994 |
| 5205166 |
Method of detecting fluid influxes |
Apr. 27, 1993 |
| 5161409 |
Analysis of drilling solids samples |
Nov. 10, 1992 |
| 5163029 |
Method for detection of influx gas into a marine riser of an oil or gas rig |
Nov. 10, 1992 |
| 5140527 |
Method for the determination of the ionic content of drilling mud |
Aug. 18, 1992 |
| 5130950 |
Ultrasonic measurement apparatus |
Jul. 14, 1992 |
| 5127261 |
Self-contained apparatus and method for determining the static and dynamic loading characteristics of a soil bed |
Jul. 7, 1992 |
| 5125266 |
Self-contained apparatus and method for determining the static and dynamic loading characteristics of a soil bed |
Jun. 30, 1992 |
| 5115871 |
Method for the estimation of pore pressure within a subterranean formation |
May. 26, 1992 |
| 5042296 |
Method of in-situ testing of a drilling fluid |
Aug. 27, 1991 |
| 5005406 |
Monitoring drilling mud composition using flowing liquid junction electrodes |
Apr. 9, 1991 |
| 4887464 |
Measurement system and method for quantitatively determining the concentrations of a plurality of gases in drilling mud |
Dec. 19, 1989 |
| 4878382 |
Method of monitoring the drilling operations by analyzing the circulating drilling mud |
Nov. 7, 1989 |
| 4867254 |
Method of controlling fluid influxes in hydrocarbon wells |
Sep. 19, 1989 |
| 4833915 |
Method and apparatus for detecting formation hydrocarbons in mud returns, and the like |
May. 30, 1989 |
| 4807469 |
Monitoring drilling mud circulation |
Feb. 28, 1989 |
| 4765182 |
System and method for hydrocarbon reserve evaluation |
Aug. 23, 1988 |
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