Hydraulically operated fluid metering apparatus for use in a subterranean well, and associated methods
US6585051B2 · kind B2 · utility
59Cited by
11References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 2001 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | Jul 10, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B11/13
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hydraulically operated fluid metering apparatus provides discharge of a known volume of fluid to an actuator of a well tool. In one described embodiment, the fluid metering apparatus is connected to a hydraulic input of a well tool actuator. Discharge of the known volume of fluid to the actuator input causes a piston of the actuator to displace a known distance, thereby producing a known increment of actuation of the well tool. The discharge of the known volume of fluid may be repeated to produce a desired total degree of actuation of the well tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.