Systems and method for reverse cementing
US10344558B2 · kind B2 · utility
1Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2015 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | Sep 8, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/05
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A material detection and sealing device includes a body comprising a bottom end and a top end, and configured to fit within a casing string. The device includes a valve located within the body configured to open and close an orifice formed through the body. The device also includes a density meter located on or within the body configured to continuously sense the density of a neighboring fluid. The valve is configured to close upon the density meter sensing a certain density condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.