| Patent Number |
Title Of Patent |
Date Issued |
| 5969241 |
Method and apparatus for measuring formation pressure |
October 19, 1999 |
| An earth formation tool measures pressure from within a borehole. A portion of the borehole wall is isolated from surrounding borehole fluids by placing a chamber of a borehole tool against the borehole wall. The chamber comprises a recess in an exterior surface of a borehole tool. M |
| 5676213 |
Method and apparatus for removing mudcake from borehole walls |
October 14, 1997 |
| A portion of a borehole wall is isolated from surrounding borehole fluids by placing a chamber of a borehole tool against the borehole wall. The chamber comprises a cylindrical recess in an exterior surface of the borehole tool. The recess is open at one end to receive borehole fluids, |
| 5663559 |
Microscopy imaging of earth formations |
September 2, 1997 |
| Images of rock formations below the earth's surface can be obtained on a microscopic scale. A borehole tool uses a seal to isolate an interval of the formation from borehole fluids which are outside the seal. A probe of the tool engages a wall of the formation and then draws formation fl |
