Method of positioning tubing within a horizontal well
US5117912A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 24, 1991 |
| Grant date | Jun 2, 1992 |
| Priority date | — |
| Expiry date | May 24, 2011 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/305
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of selectively and variably positioning tubing within the generally horizontal section of a horizontally drilled well. A tubing string having a guide shoe secured to the end thereof is inserted into a portion of the horizontal section of a horizontal well. Smaller diameter tubing is then inserted through the tubing string and past guide shoe into the generally horizontal section. The smaller diameter tubing can be inserted to a point proximate the end of the horizontal section of the well or intermediate between the end and the guide shoe. The subterranean formation surrounding the generally horizontal section may be stimulated or treated by injecting a fluid via the smaller diameter tubing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.