Fluid additive and method for treatment of subterranean formations
US4842073A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1988 |
| Grant date | Jun 27, 1989 |
| Priority date | — |
| Expiry date | Mar 14, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/922
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A formation control additive is utilized in stimulation fluids to minimize formation permeability damage as a result of formation contact by the stimulation fluid. The formation control additive can comprise N-alkypyridinium halides, N,N,N-trialkylphenylammonium halides, N,N,N-trialkylbenzylammonium halides, N,N-dialkylmorpholinium halides, alkyl quaternary ammonium salt of 2 mole oligomer of epihalohydrin wherein the alkyl radical is selected from the group of methyl, ethyl, propyl and butyl radicals and compounds of the general formula: ##STR1## wherein R is independently a methyl, ethyl, propyl or butyl radical and X is a compatible anion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.