Fracing process
US4186802A · kind A · utility
31Cited by
9References
23Claims
0Family size
Inventor
Key dates
| Filing date | Mar 13, 1978 |
| Grant date | Feb 5, 1980 |
| Priority date | — |
| Expiry date | Mar 13, 1998 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/26
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for hydraulically fracturing a single subterranean formation in which a fracture is first induced in the formation and then subjected to multiple hydraulic fracturing cycles to generate vertical linear fractures or to linearly extend the fracture outward from the point of introduction of the fracing fluid into a well penetrating the formation. By utilizing fracing fluid containing a high ratio of fine proppant and injected at a low rate, the linear fracturing solely within the formation can be substantially increased with very little or no radial vertical fracturing occurring outside the formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.