Equalizing apparatus for use with wireline-conveyable pumps
US5265679A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1992 |
| Grant date | Nov 30, 1993 |
| Priority date | — |
| Expiry date | Mar 13, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1275
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An equalizing apparatus is provided for use in a wellbore tool string which includes a wireline-conveyable source of pressurized fluid which selectively discharges fluid, a wireline-conveyable fluid-pressure actuable wellbore tool which is operable in a plurality of modes of operation including at least a running mode of operation with the wireline-conveyable fluid-pressure actuable wellbore tool in a running condition and a actuated mode of operation with the wireline-conveyable fluid-pressure actuable wellbore tool in an actuated condition, a flow path for communicating fluid from the wireline-conveyable source of pressurized fluid and the wireline-conveyable fluid-pressure actuable wellbore tool, and a wireline assembly which is coupled thereto for delivery of the wireline-conveyable source of pressurized fluid and the wireline-conveyable fluid-pressure actuable wellbore tool to a selected location within a wellbore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.