Patent · US Active

Actively controlled bailer

US12291934B2 · kind B2 · utility

0Cited by

4References

16Claims

0Family size

Assignee

EQUINOR ENERGY AS · NO

Inventors

Rune Godøy · Sandnes, NO
Bård Marius Johansen · Værestrøa, NO
Morten Eidem · Trondheim, NO
Gjermund Grimsbo · Trondheim, NO

Key dates

Filing date	Nov 27, 2020
Grant date	May 6, 2025
Priority date	—
Expiry date	Jul 10, 2041

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B2200/05
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A container device for transporting and releasing a plugging material into a well includes a longitudinal chamber for containing the plugging material, the chamber including a tubular wall extending in a longitudinal direction and at least one opening for releasing the plugging material from the chamber; a lower seal extending across the opening and closing the chamber in a closed configuration; a pressure application mechanism provided at an upper portion of the container device for pressurising at least part of the device and expelling the plugging material; and a connector provided at an upper portion of the container device for attaching the container device to an elongate member for lowering into a wellbore.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.