Bottom-fire perforating drone

US10794159B2 · kind B2 · utility

Assignee

• DynaEnergetics Europe GmbH · DE

Inventors

• Christian Eitschberger · Munich, DE
• Liam McNelis · Bonn, DE
• Thilo Scharf · Letterkenny, IE
• Andreas Robert Zemla · Troisdorf, DE
• Shmuel Silverman · Novato, US
• Gernot Uwe Burmeister · Austin, US
• Arash Shahinpour · Troisdorf, DE

Key dates

• Filing date: Jun 25, 2019
• Grant date: Oct 6, 2020
• Expiry date: Jun 25, 2039

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B47/095
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

According to some embodiments, a bottom-fire perforating drone for downhole delivery of a wellbore tool, and associated systems and methods, are disclosed. In an aspect, the wellbore tool may be a plurality of shaped charges that are arranged in a variety of configurations, including helically and in one or more single radial planes around a perforating assembly section, and detonated in a bottom-up sequence when the bottom-fire perforating drone reaches a predetermined depth in the wellbore. In another aspect, the shaped charges may be received in shaped charge apertures within a body of a perforating assembly section, wherein the shaped charge apertures are respectively positioned adjacent to at least one of a receiver booster, detonator, and detonating cord for directly initiating the shaped charges.