Identification of casing collars while drilling and post drilling using LWD and wireline measurements
US9175559B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2009 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Jun 13, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Systems and methods identify and/or detect one or more features of a well casing by utilizing one or more downhole measurements obtainable by a downhole component. The one or more features of the well casing are identifiable and/or detectable from the one or more measurements associated with one or more properties of the one or more features of the well casing. The one or more measurements for indentifying and/or detecting a presence and/or a location of the one or more features of the well casing include sonic measurements, nuclear measurements, gamma ray measurements, photoelectric measurements, resistivity measurements and/or combinations thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.