Alkyl polyglycoside derivative as biodegradable spacer surfactant

US9012379B2 · kind B2 · utility

Assignee

• Halliburton Energy Services, Inc. · US

Inventors

• Ramesh Muthusamy · Pune, IN
• Abhimanyu Pramod Deshpande · Pune, IN
• Rahul Chandrakant Patil · Pune, IN
• Sandip Prabhakar Patil · Pune, IN

Key dates

• Filing date: Mar 5, 2013
• Grant date: Apr 21, 2015
• Expiry date: Mar 5, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K8/601
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A spacer fluid comprising: (a) water; and (b) an alkyl polyglycoside derivative, wherein the alkyl polyglycoside derivative is selected from the group consisting of sorbitan fatty acids; functionalized sulfonates, functionalized betaines, an inorganic salt of any of the foregoing, and any combination of any of the foregoing. Preferably, the spacer fluid additionally comprises a solid particulate, such as a weighting agent. A method of displacing an oil-based drilling mud from a portion of a well comprising the steps of: (A) forming the spacer fluid; and (B) introducing the spacer fluid into the well.