Method for preserving core sample integrity
US5881825A · kind A · utility
18Cited by
9References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 1997 |
| Grant date | Mar 16, 1999 |
| Priority date | — |
| Expiry date | Jan 8, 2017 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B25/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention provides a method for protecting the integrity of a core sample during transport from a subterranean formation to the surface comprising: cutting a core sample from the subterranean formation using a drilling fluid; encapsulating the core sample with an encapsulating material separate from the drilling fluid, the encapsulating material being capable in the absence of a chemical reaction of protecting core sample integrity during transport from said subterranean formation to said surface; and, transporting the encapsulated core sample from the subterranean formation to the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.