Frac dart, method, and system
US11608715B2 · kind B2 · utility
0Cited by
13References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2021 |
| Grant date | Mar 21, 2023 |
| Priority date | — |
| Expiry date | May 14, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A frac dart including a pressure housing, a mechanical sensor disposed through the pressure housing, a contactor inside the pressure housing and in operable communication with the mechanical sensor, and an electrical counter disposed in the pressure housing and responsive in increments to movement of the mechanical sensor that closes the contactor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.