Sand plugs and placing sand plugs in highly deviated wells
US7690427B2 · kind B2 · utility
16Cited by
16References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 7, 2008 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Mar 7, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/26
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Methods of isolating portions of a subterranean formation adjacent to a highly deviated well bore having a downstream end and an upstream end and substantially filling a first zone with a sand plug comprising lightweight particulates having a specific gravity of below about 1.25 so as to substantially isolate the first zone from the second zone wherein the first zone is located closer to the downstream end of the wellbore than the second zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.