Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5470749 | Method for determining steam quality using a foaming surfactant | Nizar F. Djabbarah | 1995-11-28 |
| 5443119 | Method for controlling sand production from a hydrocarbon producing reservoir | Michael Roy Chambers, Sr. | 1995-08-22 |
| 5402846 | Unique method of hydraulic fracturing | Alfred R. Jennings, Jr. | 1995-04-04 |
| 5363917 | Method of sand consolidation | Alfred R. Jennings, Jr., Robert S. Timmer | 1994-11-15 |
| 5360068 | Formation fracturing | Alfred R. Jennings, Jr., Robert S. Timmer | 1994-11-01 |
| 5299453 | Method for determining oil and water saturation of core samples at overburden pressure | Nizar F. Djabbarah | 1994-04-05 |
| 5214384 | Method including electrical self potential measurements for detecting multiphase flow in a cased hole | Nizar F. Djabbarah | 1993-05-25 |
| 5209104 | Method for desaturating a porous rock for electrical resistivity measurements | Samuel H. Collins | 1993-05-11 |
| 5206505 | Apparatus and method for retrieving and evaluating a slim hole drilled core sample of a subsurface formation | — | 1993-04-27 |
| 5164672 | Method for measuring electrical resistivity of a core sample of porous rock during water drainage and imbibition | Ron E. Gilliland | 1992-11-17 |
| 5069065 | Method for measuring wettability of porous rock | Samuel H. Collins | 1991-12-03 |
| 4982604 | Method and system for testing the dynamic interaction of coring fluid with earth material | R. Michael Davis, M. Scott Quigley | 1991-01-08 |
| 4924187 | Method for measuring electrical anisotrophy of a core sample from a subterranean formation | R. Michael Davis, W. David Kennedy, Samuel H. Collins | 1990-05-08 |
| 4868751 | Method for determining relative permeability of a subterranean reservoir | Ali H. Dogru | 1989-09-19 |
| 4864864 | Method for measuring stress deformation of materials | David P. Yale, Robin B. Montgomery | 1989-09-12 |
| 4848487 | Method for minimizing mud solids invasion of core samples obtained during subsurface coring | Maynard L. Anderson, Peggy M. Wilson, Susan O. Wooten | 1989-07-18 |
| 4799382 | Method for determining reservoir characteristics of a porous material | David P. Yale | 1989-01-24 |
| 4785882 | Enhanced hydrocarbon recovery | — | 1988-11-22 |
| 4722095 | Method for identifying porosity and drilling mud invasion of a core sample from a subterranean formation | Ernest L. Muegge, Jorge J. Faz | 1988-01-26 |
| 4688238 | Method for determining lithological characteristics of a porous material | Neil V. Humphreys, Ernest L. Muegge, James R. Dixon | 1987-08-18 |
| 4631963 | Method for measuring acoustic energy anisotropy through core samples | Larry D. Smallwood | 1986-12-30 |
| 4631964 | Shear acoustic energy anisotropy of subsurface formations | Larry D. Smallwood | 1986-12-30 |
| 4380930 | System for transmitting ultrasonic energy through core samples | Julius Podhrasky | 1983-04-26 |