Small core generation and analysis at-bit as LWD tool
US8739899B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 28, 2011 |
| Grant date | Jun 3, 2014 |
| Priority date | — |
| Expiry date | Jul 11, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present disclosure is related to an apparatus for taking a sample in a wellbore during drilling operations. The apparatus may include a drill bit configured to form a core and at least one retractable cutter internal to the drill bit for taking the sample from the core. The apparatus may also include equipment for analyzing the sample, extracting fluid from the sample, testing fluid from the sample, encapsulating the sample, and/or tagging the sample. The present disclosure is also related to a method for taking a core sample without interrupting drilling operations. The method includes taking a core sample using a drill bit configured to take a core sample using internal cutters. The method may also include analyzing the sample, extracting fluid from the sample, analyzing fluid from the sample, encapsulating the sample, and/or tagging the sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.