Wellbore mechanical integrity for in situ pyrolysis
US8616280B2 · kind B2 · utility
10Cited by
344References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2011 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Jun 13, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/24
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of completing a wellbore in a subsurface formation. The method principally has application to subsurface formations comprising organic-rich rock that is to be heated in situ. Heating the organic-rich rock pyrolyzes solid hydrocarbons into hydrocarbon fluids. The method includes identifying sections along the wellbore where the organic richness of formation rock within the identified zones varies over short distances. Such variance presents a risk of mechanical failure to downhole equipment. The method further includes strengthening the downhole equipment in at least one of the identified sections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.