Method and system for maintaining and producing horizontal well bores
US4878539A · kind A · utility
20Cited by
26References
35Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 2, 1988 |
| Grant date | Nov 7, 1989 |
| Priority date | — |
| Expiry date | Aug 2, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/305
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system for conducting operations in a well penetrating laterally into a subsurface producing formation. The system employs two strings of tubing. One string extends from the surface throughout the well; the other string extends from the surface to a position generally above the lateral section of the well. Both strings pass through a dual packer installed above the formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.