Slurry injection into disaggregated earth formations
US5387737A · kind A · utility
15Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1993 |
| Grant date | Feb 7, 1995 |
| Priority date | — |
| Expiry date | Apr 6, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB09B1/008
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Slurries of particulate solids wastes are injected into a disaggregated earth formation through an injection well by predetermining the formation to have a compressive stress in a range of about 300 psi to 2500 psi, a porosity of at least about twenty percent (20%) and disposed between overburden and underburden layers which have a substantially lower permeability than the disposal zone. The disposal zone is disaggregated or "liquified" by injecting substantially solids-free liquid followed by injection of the solids-laden slurry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.