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Class Information
Number: 73/152.59
Name: Measuring and testing > Borehole or drilling (e.g., drill loading factor, drilling rate, rate of fluid flow) > Downhole test > By measurement of response due to force
Description: Subject matter wherein the determination of the physical characteristic of the borehole, the casing, or the drill rigging is made by measuring a response due to an agency or an influence that if applied to a free body results chiefly in acceleration of the body and sometimes in elastic deformation.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7604072 |
Method and apparatus for collecting drill bit performance data |
Oct. 20, 2009 |
| 7444861 |
Real time management system for slickline/wireline |
Nov. 4, 2008 |
| 7377319 |
Downhole device to measure and record setting motion of packers and method of sealing a wellbore |
May. 27, 2008 |
| 7171851 |
Temperature compensated strain measurement |
Feb. 6, 2007 |
| 7066019 |
Cavity stability prediction method for wellbores |
Jun. 27, 2006 |
| 6957580 |
System and method for measurements of depth and velocity of instrumentation within a wellbore |
Oct. 25, 2005 |
| 6957575 |
Apparatus for weight on bit measurements, and methods of using same |
Oct. 25, 2005 |
| 6802215 |
Apparatus for weight on bit measurements, and methods of using same |
Oct. 12, 2004 |
| 6776035 |
Method and device for calibration of dual-axis tilt meter |
Aug. 17, 2004 |
| 6655220 |
Method and device for in situ triaxial test |
Dec. 2, 2003 |
| 6553825 |
Torque swivel and method of using same |
Apr. 29, 2003 |
| 6536519 |
Downhole tool to generate tension pulses on a slickline |
Mar. 25, 2003 |
| 6526819 |
Method for analyzing a completion system |
Mar. 4, 2003 |
| 6354158 |
System for measuring torque applied to the drum shaft of a hoist |
Mar. 12, 2002 |
| 6276466 |
System for measuring the direction and revolution of a production string |
Aug. 21, 2001 |
| 6260618 |
Method for locating placement of a guide stock in a multilateral well |
Jul. 17, 2001 |
| 6178815 |
Method to improve the quality of a formation fluid sample |
Jan. 30, 2001 |
| 6151960 |
Method of determining characteristics of a rotary drag-type drill bit |
Nov. 28, 2000 |
| 6138752 |
Method and apparatus to determine subterrranean formation stress |
Oct. 31, 2000 |
| 6102122 |
Control of heat injection based on temperature and in-situ stress measurement |
Aug. 15, 2000 |
| 5934373 |
Apparatus and method for monitoring underground fracturing |
Aug. 10, 1999 |
| 5929341 |
Stress measuring rock support device |
Jul. 27, 1999 |
| 5874676 |
Method and apparatus for acoustically investigating a casing with a swept frequency pulse |
Feb. 23, 1999 |
| 5795991 |
Arrangement of an impact-sensitive device in a housing |
Aug. 18, 1998 |
| 5739431 |
Miniature magnetometer-accelerometer |
Apr. 14, 1998 |
| 5675088 |
Method and apparatus for automatic monitoring of tectonic stresses and quantitative forecast of shallow earthquakes |
Oct. 7, 1997 |
| 5517854 |
Methods and apparatus for borehole measurement of formation stress |
May. 21, 1996 |
| 5431046 |
Compliance-based torque and drag monitoring system and method |
Jul. 11, 1995 |
| 5417103 |
Method of determining material properties in the earth by measurement of deformations due to subsurface pressure changes |
May. 23, 1995 |
| 5386724 |
Load cells for sensing weight and torque on a drill bit while drilling a well bore |
Feb. 7, 1995 |
| 5377105 |
Enhanced vertical resolution processing of dual-spaced neutron and density tools |
Dec. 27, 1994 |
| 5347859 |
Dynamometric measuring device for a drill pipe |
Sep. 20, 1994 |
| 5339679 |
Self-contained apparatus and method for determining the static and dynamic loading characteristics of a soil bed |
Aug. 23, 1994 |
| 5216917 |
Method of determining the drilling conditions associated with the drilling of a formation with a drag bit |
Jun. 8, 1993 |
| 5165274 |
Downhole penetrometer |
Nov. 24, 1992 |
| 5099700 |
Extensometric sensor for measuring the stresses acting on a drilling element and a device for mounting such a sensor |
Mar. 31, 1992 |
| 5044198 |
Method of predicting the torque and drag in directional wells |
Sep. 3, 1991 |
| 5040414 |
Analyzing a hydrocarbon reservoir by determining the response of that reservoir to tidal forces |
Aug. 20, 1991 |
| 4972703 |
Method of predicting the torque and drag in directional wells |
Nov. 27, 1990 |
| 4966234 |
Method for determining the free point of a stuck drillstring |
Oct. 30, 1990 |
| 4958517 |
Apparatus for measuring weight, torque and side force on a drill bit |
Sep. 25, 1990 |
| 4958125 |
Method and apparatus for determining characteristics of the movement of a rotating drill string including rotation speed and lateral shocks |
Sep. 18, 1990 |
| 4928764 |
Wireline tool cable head overload apparatus |
May. 29, 1990 |
| 4926686 |
Method for determining the wear of the cutting means of a tool during drilling a rocky formation |
May. 22, 1990 |
| 4899320 |
Downhole tool for determining in-situ formation stress orientation |
Feb. 6, 1990 |
| 4876886 |
Method for detecting drilling events from measurement while drilling sensors |
Oct. 31, 1989 |
| 4875369 |
Pressure sensor system |
Oct. 24, 1989 |
| 4875368 |
Pressure sensor system |
Oct. 24, 1989 |
| 4852399 |
Method for determining drilling conditions while drilling |
Aug. 1, 1989 |
| 4848144 |
Method of predicting the torque and drag in directional wells |
Jul. 18, 1989 |
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