Process for selectively treating a subterranean formation using coiled tubing without affecting or being affected by the two adjacent zones
US4842068A · kind A · utility
29Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1987 |
| Grant date | Jun 27, 1989 |
| Priority date | — |
| Expiry date | Dec 21, 2007 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/261
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention consists of a new process for selectively treating a subterranean formation without affecting or being effected by the two adjacent zones (above and below). Using the invented process, the treatment fluid is injected into the formation to be treated F, at the same time as two protection fluids, whether the same or different, are injected into the two adjacent zones (above [ZS] and below [ZI]). The process can be applied even in the presence of fractures, gravel-pack and their zones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.