Multiphase lubricant concentrates for use in water based systems in the field of exploratory soil drilling

US6211119A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Claus-Peter Herold · Mettmann, DE
• Heinz Mueller · Monheim, DE
• Thomas Foerster · Goldkronach, DE
• Stephan von Tapavicza · Erkrath, DE
• Marcus Claas · Hilden, DE

Key dates

• Filing date: Jun 1, 1999
• Grant date: Apr 3, 2001
• Expiry date: Jun 1, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2070/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to multiphase lubricant concentrates with improved properties for use in aqueous fluids for geological exploration by drilling which contain organic lubricating components which are solid and/or liquid at room temperature (O phase) together with emulsifiers finely dispersed in a continuous aqueous phase (W phase). These concentrates are characterized in that the system of O phase/W phase and emulsifiers has a phase inversion temperature (PIT) above room temperature and has been produced by heating the multiphase system to temperatures equal to or above the PIT and subsequent cooling to temperatures below the PIT. The present invention also relates to the use of the multiphase lubricant concentrates as an additive in water-based fluids for use in geological exploration by drilling and for the subsequent treatment of the resulting boreholes.