Plugging and abandoning a well using a set-delayed cement composition comprising pumice

US9212534B2 · kind B2 · utility

Assignee

• Halliburton Energy Services, Inc. · US

Inventors

• Horton Colby Ballew · Conroe, US
• Thomas Jason Pisklak · Cypress, US
• Kyriacos Agapiou · Houston, US
• Peter Boul · Houston, US
• Pauline Akinyi Otieno · Spring, US
• Lance E. Brothers · Chickasha, US
• Ronnie Glen Morgan · Waurika, US

Key dates

• Filing date: Nov 26, 2013
• Grant date: Dec 15, 2015
• Expiry date: Mar 26, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K8/467
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Disclosed herein are cement compositions and methods of using set-delayed cement compositions in subterranean formations. In one embodiment a method of plugging a wellbore is described. The method comprises providing a set-delayed cement composition comprising pumice, hydrated lime, a cement set retarder, and water; activating the set-delayed cement composition to produce an activated set-delayed cement composition; introducing the activated set-delayed cement composition into the wellbore; and allowing the activated set-delayed cement composition to form a plug in the wellbore that has a permeability of less than 0.1 millidarcy.