Formation evaluation instrument and method

US8794318B2 · kind B2 · utility

Assignee

• SCHLUMBERGER TECHNOLOGY CORPORATION · US

Inventors

• Edward Harrigan · Richmond, US
• Yves Barriol · Houston, US
• Andrei I. Davydychev · Sugar Land, US
• Andrew Carnegie · Kuala Lumpur, MY
• Dean Homan · Sugar Land, US
• Srinand Karuppoor · Sugar Land, US
• Yi-Qiao Song · Ridgefield, US
• Tim Hopper · Cambridge, US
• Henry N. Bachman · Sugar Land, US
• William B. Vandermeer · Houston, US
• Anthony Collins · Brisbane, AU
• Mark A. Fredette · Houston, US

Key dates

• Filing date: Jul 9, 2009
• Grant date: Aug 5, 2014
• Expiry date: Sep 9, 2030

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B49/10
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

Subsurface formation evaluation comprising, for example, sealing a portion of a wall of a wellbore penetrating the formation, forming a hole through the sealed portion of the wellbore wall, injecting an injection fluid into the formation through the hole, and determining a saturation of the injection fluid in the formation by measuring a property of the formation proximate the hole while maintaining the sealed portion of the wellbore wall.