Methods of fracturing sensitive formations
US7681635B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2005 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Jan 17, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/25
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An example of a method includes providing a hydrajetting tool in a well bore in a formation; injecting a fluid through the tool into a first region of the formation at a velocity sufficient to form one or more perforation tunnels; maintaining the flow of fluid into the perforation tunnels at a pressure greater than the fracture closure pressure, so as to create one or more fractures in the first region; plugging at least partially the fractures with an isolation fluid; injecting a fluid through the hydrajetting tool into a second region of the formation at a velocity sufficient to form one or more perforation tunnels in the second region; and maintaining the flow of fluid into the perforation tunnels in the second region at a pressure greater than the fracture closure pressure, so as to create one or more fractures in the second region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.