Method of gravel packing with oil-based carrier fluid
US7419004B2 · kind B2 · utility
6Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 30, 2003 |
| Grant date | Sep 2, 2008 |
| Priority date | — |
| Expiry date | Jul 21, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/64
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method is disclosed for gravel packing a hole in a subterranean formation including the step of pumping into the hole a gravel pack composition comprising gravel and a carrier fluid comprising a brine-in-oil emulsion, said emulsion being stabilized by an emulsifier based on at least one sorbitan fatty acid ester presenting a shoulder peak before the peak depicted to be the monomer peak when analyzed by gel permeation chromatography. The emulsifiers that exhibit the shoulder exhibit good stability without causing formation damage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.