The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 28, 2012
Filed:
Jun. 26, 2006
Christopher Alan Sawdon, Par, GB;
Hemant Kuman Jethalal Ladva, Missouri City, TX (US);
Timothy Gareth John Jones, Cottenham, GB;
Gary John Tustin, Sawston, GB;
Christopher Alan Sawdon, Par, GB;
Hemant Kuman Jethalal Ladva, Missouri City, TX (US);
Timothy Gareth John Jones, Cottenham, GB;
Gary John Tustin, Sawston, GB;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
The invention relates to the use of one or more water-soluble reactive liquid component capable of subsequent polymerization or cross-linking to form a solid to improve the zonal isolation and alleviate the impacts of cracks and fissures in the cement sheath around a completed subterranean well. It includes the steps of injecting a wellbore fluid carrying the reactive component or additive into the wellbore, injecting a cementitious composition as slurry into the wellbore and letting said reactive liquid component pass through at least one of the interfaces between cement and formation, cement and filter cake, and filter cake and formation before forming a solid of said reactive liquid component that traverses said at least one of the interfaces.