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Class Information
Number: 73/152.01
Name: Measuring and testing > Borehole or drilling (e.g., drill loading factor, drilling rate, rate of fluid flow)
Description: Subject matter comprising a process or an apparatus for determining a physical characteristic of a borehole, a casing, or a drill rigging.

Sub-classes under this class:

Class Number Class Name Patents
73/152.54 Downhole test 136
73/152.43 During drilling 79
73/152.18 Fluid flow measuring or fluid analysis 198
73/152.02 Formation logging (e.g., borehole studies of pressure derivatives or of pressure-temperature derivatives) 181
73/152.51 Pressure measurement 188
73/152.61 Pump test 45

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8677831 Apparatus and method for characterizing stresses of a formation Mar. 25, 2014
8630817 Self centering bore measurement unit Jan. 14, 2014
8614578 Attenuation of electromagnetic signals passing through conductive material Dec. 24, 2013
8607628 Method for a formation properties determination Dec. 17, 2013
8606521 Determining fluid pressure Dec. 10, 2013
8594818 Production monitoring system and method Nov. 26, 2013
8583378 Method of estimating physical parameters of a geological formation Nov. 12, 2013
8573048 Method and apparatus for analying fracture fluids in a drilling operation Nov. 5, 2013
8577614 Information characterization system and methods Nov. 5, 2013
8556000 Device for monitoring a drilling or coring operation and installation comprising such a device Oct. 15, 2013
8548743 Method and apparatus to monitor reformation and replacement of CO.sub.2/CH.sub.4 gas hydrates Oct. 1, 2013
8442769 Method of determining and utilizing high fidelity wellbore trajectory May. 14, 2013
8326538 Mobile wellsite monitoring Dec. 4, 2012
8301383 Estimating in situ mechanical properties of sediments containing gas hydrates Oct. 30, 2012
8201445 Methods and compositions for removing residues and substances from substrates using environmentally friendly solvents Jun. 19, 2012
8168121 Portable gas monitor May. 1, 2012
8163242 Portable gas monitor Apr. 24, 2012
8156799 Rotating fluid flow measurement device and method Apr. 17, 2012
8136384 Hardband wear testing system and method Mar. 20, 2012
8126650 Method for determining physical properties of structures Feb. 28, 2012
8116532 Extraction of processed borehole image elements to create a combined image Feb. 14, 2012
8061442 Method to detect formation pore pressure from resistivity measurements ahead of the bit during drilling of a well Nov. 22, 2011
8010291 Processing measurement data that involves computing a derivative of the measurement data that represents a subterranean structure Aug. 30, 2011
8006551 Methods and compositions for removing residues and substances from substrates using environmentally friendly solvents Aug. 30, 2011
7999695 Surface real-time processing of downhole data Aug. 16, 2011
7970544 Method and apparatus for characterizing and estimating permeability using LWD Stoneley-wave data Jun. 28, 2011
7933718 Method and tool for determination of fracture geometry in subterranean formations based on in-situ neutron activation analysis Apr. 26, 2011
7921916 Communicating measurement data from a well Apr. 12, 2011
7890200 Process-related systems and methods Feb. 15, 2011
7793712 Downhole tool Sep. 14, 2010
7761237 Method for quantification and mitigation for dip-induced azimuthal AVO Jul. 20, 2010
7715984 Method for continuous interpretation of monitoring data May. 11, 2010
7680600 Method, system and apparatus for formation tester data processing Mar. 16, 2010
7676326 VH Reservoir Mapping Mar. 9, 2010
7536262 Kalman filter approach to processing electromagnetic data May. 19, 2009
7513752 Beam pump dynamic load monitoring and methods Apr. 7, 2009
7478555 Technique and apparatus for use in well testing Jan. 20, 2009
7472594 Fluid level indication system and technique Jan. 6, 2009
7458258 Methods and apparatus for oil composition determination Dec. 2, 2008
7435597 Assays for zero-valent transition metals in sedimentary rocks using carbon monoxide with application to oil and gas exploration Oct. 14, 2008
7418865 Method and apparatus for ultrasound velocity measurements in drilling fluids Sep. 2, 2008
7318343 System for detecting gas in a wellbore during drilling Jan. 15, 2008
7299132 Method and system for pre-drill pore pressure prediction Nov. 20, 2007
7290443 Method for measuring formation properties with a time-limited formation test Nov. 6, 2007
7282698 System and method for monitoring a well Oct. 16, 2007
7230543 Downhole clock synchronization apparatus and methods for use in a borehole drilling environment Jun. 12, 2007
7168310 Accuracy of shaly sand formation evaluation Jan. 30, 2007
7143521 Determination of borehole azimuth and the azimuthal dependence of borehole parameters Dec. 5, 2006
7128149 Apparatus and methods for improved fluid displacement in subterranean formations Oct. 31, 2006
7114385 Apparatus and method for drawing fluid into a downhole tool Oct. 3, 2006

1 2 3

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