Temperature logging while drilling
US4561300A · kind A · utility
6Cited by
9References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 15, 1983 |
| Grant date | Dec 31, 1985 |
| Priority date | — |
| Expiry date | Dec 15, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K11/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A temperature recorder suitable for circulation with a well drilling fluid is provided with a spherical casing and/or a plurality of minute samples of known melting point and/or positioning of the samples in the mouth of a capillary structure so that the melting of the sample is unambiguous.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.