Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5322127 | Method and apparatus for sealing the juncture between a vertical well and one or more horizontal wells | Daniel S. Bangert | 1994-06-21 |
| 5318121 | Method and apparatus for locating and re-entering one or more horizontal wells using whipstock with sealable bores | Mark W. Brockman, L. Cameron White, Douglas J. Murray, Jeffrey D. Cockrell | 1994-06-07 |
| 5311936 | Method and apparatus for isolating one horizontal production zone in a multilateral well | Mark W. Brockman, L. Cameron White, Jeffrey D. Cockrell, Alfred R. Curington, Daniel S. Bangert | 1994-05-17 |