A gas supply control system for offshore oil platforms

CN224284250UActive Publication Date: 2026-05-26SHENZHEN BRANCH CHINA NAT OFFSHORE OIL CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN BRANCH CHINA NAT OFFSHORE OIL CORP
Filing Date
2025-05-20
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing offshore oil platforms have low gas supply reliability under typhoon conditions, which cannot meet the requirements for pipeline replacement, and there is a risk of pipeline condensation and oil spill.

Method used

Design a gas source control system, including an instrument gas source, first and second backup gas sources, a pressure monitoring module, a control module, and a gas source switching module. The pressure monitoring module monitors the pressure value to control the working state of the gas source switching module, selects a suitable gas source for supply, and ensures the continuous operation of the pneumatic shut-off valve.

Benefits of technology

The pneumatic shut-off valve has improved air supply reliability, meeting the requirements for pipeline replacement under typhoon conditions and reducing the risk of pipeline condensation and oil spills.

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Abstract

This utility model relates to the field of offshore platform operation technology, and more particularly to a gas source control system for offshore oil platforms. A gas source control system for offshore oil platforms includes an instrument gas source and a pressure monitoring module connected to a gas source pipeline, and also includes a control module, a gas source switching module, a first backup gas source, and a second backup gas source. The first backup gas source and the second backup gas source are connected to the gas source pipeline through the gas source switching module. The control module is electrically connected to both the pressure monitoring module and the gas source switching module, and controls the operating state of the gas source switching module based on the pressure value monitored by the pressure monitoring module, so as to select one of the instrument gas source, the first backup gas source, and the second backup gas source to supply gas. This utility model allows the backup gas source to immediately take over when the instrument gas source gradually decreases to the minimum valve opening value, ensuring the continuous operation of the pneumatic shut-off valve.
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