Process for increasing near-wellbore permeability of porous formations
US5361845A · kind A · utility
17Cited by
14References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1993 |
| Grant date | Nov 8, 1994 |
| Priority date | — |
| Expiry date | Jun 3, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/24
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of increasing the near-wellbore permeability of porous formation comprises exposing formation to an elevated temperature of 400.degree. C. or greater to cause dehydration of the clay lattices, vaporization of any blocked water, mud filtrate or other fluids, and/or destruction of the clay structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.