Height control technique in hydraulic fracturing treatments
US4478282A · kind A · utility
17Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1982 |
| Grant date | Oct 23, 1984 |
| Priority date | — |
| Expiry date | Apr 7, 2002 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/267
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
To control adverse vertical height growth of the fracture created during hydraulic fracturing treatments of subterranean formations, a nonproppant fluid stage is injected during the treatment. The nonproppant stage comprises a transport fluid and a flow block material. The flow block material can be any particulate used as a fracture proppant, and has a particle size distribution which is sufficient to form a substantially impermeable barrier to fluid flow into the vertical extremities of the fracture. The particle size distribution preferably comprises at least two different particles sizes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.