Methods of preventing well fracture proppant flow-back
US5924488A · kind A · utility
209Cited by
15References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 11, 1997 |
| Grant date | Jul 20, 1999 |
| Priority date | — |
| Expiry date | Jun 11, 2017 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/025
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention provides improved methods of placing proppant in fractures formed in a subterranean zone to prevent the subsequent flow-back of the proppant with fluids produced from the zone. The methods are basically comprised of the steps of depositing a mixture of hardenable resin composition coated proppant and uncoated proppant in the fractures and then causing the resin composition to harden into stationary permeable masses in the fractures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.