Over-pressured well fracturing method
US5370187A · kind A · utility
8Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1993 |
| Grant date | Dec 6, 1994 |
| Priority date | — |
| Expiry date | Sep 24, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/26
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Hydraulic fractures are initiated or extended into earth formations from a first well by filling a space within the wellbore and a tubing string extending within the well with a fracturing fluid, placing the first well in fluid flow communication with a tubing string extending within a second well and increasing the pressure of fluid in the respective tubing strings sufficient to initiate or extend the fracture. The second well serves as an accumulator for accumulating a sufficient charge of pressure fluid, such as gas, to drive the fracturing fluid in the first well into the formation to a suitable extent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.