Additive for wellbore fluids
US6803347B1 · kind B1 · utility
16Cited by
17References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2000 |
| Grant date | Oct 12, 2004 |
| Priority date | — |
| Expiry date | Mar 23, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/902
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A low molecular weight, high melting point, crystalline, oil soluble additive for use in wellbore fluids is provided that is preferably a ground crystalline material of melting point over 80° C., preferably over 100° C. which is readily soluble in produced hydrocarbons such as crude oil and lighter condensates, and which exhibits a molecular weight of less than 1000, and preferably less than 500, and more preferably less than 300. Its particle size can be adjusted to bridge efficiently across different pore size formations and control its solubility rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.