Single pass filtration of oil or gas well completion fluids
US4428425A · kind A · utility
2Cited by
9References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1983 |
| Grant date | Jan 31, 1984 |
| Priority date | — |
| Expiry date | Feb 18, 2003 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/065
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A single pass filtration process for the removal of suspended solids from completion fluids used in oil or gas well drilling operations which utilizes pressure injection of these fluids into a filter having pattern filter plates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.