Environmentally acceptable fluid polymer suspension for oil field services
US6620769B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2000 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | May 18, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/905
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention provides a water-free oil based fluid polymer suspension composition for use as a rheology modifier and fluid loss reducer in oil or gas well servicing fluids. It has been found that by using white medicinal oil as a carrier, high solids content and environmental friendly anhydrous fluidized polymer suspensions of xanthan gum, cellulose ethers, guar gum and derivatives thereof can be prepared. More specifically, in one aspect, an oil-based fluid polymer suspension (FPS) composition for use in oil or gas well servicing fluids is preferred containing:a) a hydrophilic polymer,b) an organophilic clay,c) a stabilizer, andd) a white medicinal oil having selected properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.