| |
 |
|
Class Information
Number: 367/86
Name: Communications, electrical: acoustic wave systems and devices > Borehole testing
Description: Subject matter wherein information or intelligence pertaining to the walls of a passageway through the earth is obtained from a device which travels through the passageway and emits acoustic waves into the medium contained within the passageway (e.g., air, water) which are reflected from the walls back to the device and detected.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4930595 |
Method and apparatus for determining the profile of a subterranean passage |
Jun. 5, 1990 |
| 4869349 |
Flexcompressional acoustic transducer |
Sep. 26, 1989 |
| 4837753 |
Method and apparatus for logging a borehole |
Jun. 6, 1989 |
| 4829486 |
Transmitting multiple borehole parameters in sonic logging |
May. 9, 1989 |
| 4802143 |
Alarm system for measurement while drilling oil wells |
Jan. 31, 1989 |
| 4796026 |
Noise tool and method |
Jan. 3, 1989 |
| 4783769 |
Method of determining position and dimensions of a subsurface structure intersecting a wellbore in the earth |
Nov. 8, 1988 |
| 4742496 |
Method of evaluating gravel packs |
May. 3, 1988 |
| 4710906 |
Method and system for monitoring the stability of boreholes |
Dec. 1, 1987 |
| 4632212 |
Apparatus for generating seismic vibration energy in a borehole |
Dec. 30, 1986 |
| 4601024 |
Borehole televiewer system using multiple transducer subsystems |
Jul. 15, 1986 |
| 4524433 |
High speed sonic logging using multiple transducers |
Jun. 18, 1985 |
| 4495604 |
Machine method for determining the presence and location of hydrocarbon deposits within a subsurface earth formation |
Jan. 22, 1985 |
| 4495606 |
Method and apparatus for combined cement bond and acoustic well logging |
Jan. 22, 1985 |
| RE31607 |
Circumferential acoustical detector |
Jun. 19, 1984 |
| 4447789 |
Laser amplifier |
May. 8, 1984 |
| 4393485 |
Apparatus for compiling and monitoring subterranean well-test data |
Jul. 12, 1983 |
| 4382290 |
Apparatus for acoustically investigating a borehole |
May. 3, 1983 |
| RE31074 |
Well surveying instrument and method |
Nov. 9, 1982 |
| 4353122 |
Differential noise logging method and apparatus |
Oct. 5, 1982 |
| 4352166 |
System and method for visual display of well-logging data |
Sep. 28, 1982 |
| 4312049 |
Method of identifying gas, oil and water zones in a subsurface formation |
Jan. 19, 1982 |
| 4293933 |
Well logging apparatus and method: synthetic logs and synthetic seismograms with extrapolated reflector dip from log measurements |
Oct. 6, 1981 |
| 4283953 |
Method and apparatus for determining a granularity property of a subsurface formation around a borehole |
Aug. 18, 1981 |
| 4184562 |
Multi-directional assemblies for sonic logging |
Jan. 22, 1980 |
| 4161715 |
Method and apparatus for measuring the interior dimensions of a hollow body |
Jul. 17, 1979 |
| 4057780 |
Method for describing fractures in subterranean earth formations |
Nov. 8, 1977 |
| 4003017 |
Continuous bit positioning system |
Jan. 11, 1977 |
|
|
|
