Subsea well intervention systems and methods
A robotic subsea intervention system addresses vessel and weather-related constraints by providing independent well intervention, ensuring timely and effective maintenance in subsea wells.
WO2026142713A1PCT designated stage Publication Date: 2026-07-02HALLIBURTON ENERGY SERVICES INC
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Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- HALLIBURTON ENERGY SERVICES INC
- Filing Date
- 2025-01-15
- Publication Date
- 2026-07-02
AI Technical Summary
Technical Problem
Conventional subsea well intervention is limited by the availability of vessels and weather conditions, leading to unaddressed maintenance needs in mature subsea production wells.
Method used
A robotic subsea intervention system that operates independently of vessel availability and weather windows, utilizing a tool insertion system, subsea work chamber, and robotic assembly mechanism to perform well interventions.
Benefits of technology
Enables timely and effective well intervention without human operators, minimizing stress on the wellhead and overcoming conventional limitations.
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Smart Images
Figure US2025011671_02072026_PF_FP_ABST
Abstract
Disclosed embodiments relate to systems for providing well intervention for a subsea wellhead. For example, the system can comprise a tool insertion system and a subsea work chamber, with the tool insertion system operatively coupled to the subsea work chamber and to the wellhead. In embodiments, both the work chamber and the tool insertion system can be disposed subsea, for example in proximity to the wellhead. In some embodiments, the work chamber may be maintained at atmospheric pressure. In some embodiments, the tool insertion system can have a retracted position which provides access to a wireline within the work chamber, and an extended position which isolates the work chamber from the tool insertion system, the distal end of the wireline, an isolation valve, and / or the wellhead.
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