Pump down assist apparatus
US11686169B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Aug 18, 2021 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Aug 18, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B23/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus and method for assisting transportation of a tool down a wellbore. The apparatus comprises an elongate body having an exterior surface extending between top and bottom ends, a connector at the bottom end operable to be secured above the tool and at least one passage formed into the exterior surface defining a first flow path having an entrance and an exit oriented towards the top end of the elongate body. The method comprises securing the elongate body to a top end of a tool in a wellbore, directing a flow of fluid down the wellbore to a position above the elongate body, separating the flow of the fluid into an inner portion and an outer portion through radially separated paths and redirecting the inner portion to flow upwards into the outer portion of the flow of the fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.