Methods for dewatering shaly subterranean formations
US6660693B2 · kind B2 · utility
140Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2001 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Oct 12, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/925
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Methods are provided for increasing the production of hydrocarbons from shaly formations that contain adsorbed condensed hydrocarbon gases by treating such formations with dewatering compositions comprising surfactants that cause the surfaces of the formation to be or to remain oil-wet. The methods may be used in stimulation (acidizing or acid fracturing or hydraulic fracturing), remediation or workover, and in enhancing flow from natural fractures or from unstimulated formations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.