| 7387015 |
Material strength indexing system |
David M. Chancellor, Gangerico G. Ramos |
2008-06-17 |
| 5265462 |
Method and apparatus for determining permeability, diffusivity, porosity, and gas storage in gas-containing substrates |
Matthew E. Blauch, Hazim H. Abass, David E. McMechan |
1993-11-30 |
| 5253719 |
Process for diagnosing formation damage mechanism through the use of radially oriented core samples cut from the wellbore wall |
Matthew E. Blauch |
1993-10-19 |
| 5236040 |
Method for determining the minimum principle horizontal stress within a formation through use of a wireline retrievable circumferential acoustic scanning tool during an open hole microfrac test |
James J. Venditto, David E. McMechan |
1993-08-17 |
| 5207104 |
Method for determination of the in situ compressive strength of formations penetrated by a well borehole |
— |
1993-05-04 |
| 5105894 |
Method and apparatus for orientating core sample and plug removed from sidewall of a borehole relative to a well and formations penetrated by the borehole |
— |
1992-04-21 |
| 4950844 |
Method and apparatus for obtaining a core sample at ambient pressure |
Bobby J. Hallmark |
1990-08-21 |
| 4911002 |
Logging apparatus for a core sample cutter |
Keith Vickers, Thomas Knode |
1990-03-27 |