Utilizing drilling fluid in well cementing operations
US5398758A · kind A · utility
103Cited by
30References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1993 |
| Grant date | Mar 21, 1995 |
| Priority date | — |
| Expiry date | Nov 30, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides methods of cementing a well with a cementing composition utilizing a portion of the fluid used to drill the well as a component of the cementing composition. The methods basically comprise forming a cementing composition, consisting essentially of a cementing precursor composition and a set-activator introducing the cementing composition into the well and permitting the cementing composition to set into a hard mass therein; wherein the cementing precursor composition is the fluid used to drill the well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.