Lateral well drilling
US5435400A · kind A · utility
235Cited by
11References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 25, 1994 |
| Grant date | Jul 25, 1995 |
| Priority date | — |
| Expiry date | May 25, 2014 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/305
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for enhancing the productive capacity of a primary wellbore containing a conduit string such as casing involving removing at least a partial radial section of the casing to provide an aperture therein, setting tubing carrying a guide surface in the vicinity of the aperture and drilling a lateral wellbore at an angle to the primary wellbore using a coiled tubing conveyed drilling assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.