Alkanesulfonic acid microcapsules and use thereof in deep wells

US8863841B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Walter Bertkau · Ludwigshafen, DE
• Norbert Steidl · Trostberg, DE

Key dates

• Filing date: Mar 2, 2012
• Grant date: Oct 21, 2014
• Expiry date: Nov 6, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2998
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Alkanesulfonic acid microcapsules and the use thereof as an additive for acidizing applications in carbonatic rock formations, especially for increasing the permeability of underground carbonatic mineral oil- and/or natural gas-bearing and/or hydrothermal rock formations and for dissolving carbonatic and/or carbonate-containing impurities in the production of mineral oil and/or natural gas or geothermal power generation are described. Additionally described is an acidic formulation comprising the inventive microcapsules and the use thereof for the aforementioned purpose, and a corresponding process.