Formation treatment
US8985208B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2007 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Oct 30, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/572
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Method of consolidating sand in a subterranean formation by contacting the sand in a first location in the presence of water with a slurry in a liquid medium of cement of average particle size less than 10 microns to produce a mixture including sand, water and cement, the slurry being injected into the formation to the location. A separation step is carried out in which a liquid hydrocarbon fluid is passed into the location to displace from the location at least some of the cement from the mixture. The volume ratio of liquid hydrocarbon fluid to the volume of the slurry injected to the formation is at least 5:1. The mixture is allowed to set to give permeable consolidated sand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.