Fully-electrically driven downhole safety valve

US10989019B2 · kind B2 · utility

Assignee

• CHINA UNIVERSITY OF PETROLEUM (EAST CHINA) · CN

Inventors

• Baoping Cai · Qingdao, CN
• Yonghong Liu · Qingdao, CN
• Chuntan Gao · Qingdao, CN
• Chaoyang Sheng · Qingdao, CN
• Peng Liu · San Diego, US
• Xincheng Li · Shandong, CN
• Hongqi Xu · Cangzhou, CN
• Yandong Chen · Longbeilingcun, CN
• Libing Liu · Shanghai, CN
• Renjie Ji · Shandong, CN
• Zengkai Liu · Qingdao, CN
• Rikui Zhang · Shandong, CN
• Yuqian Yang · Shandong, CN
• Shitang Liu · Shandong, CN
• Xin Wei · Nanjing, CN

Key dates

• Filing date: Dec 5, 2019
• Grant date: Apr 27, 2021
• Expiry date: Dec 5, 2039

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B2200/05
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

The present disclosure belongs to the field of petroleum engineering, in particular to a fully-electrically driven downhole safety valve. The fully-electrically driven downhole safety valve comprises a downhole safety valve mechanism and a downhole safety valve control system; wherein the downhole safety valve mechanism includes an electronic cabin module, a transmission control module, a motion conversion module, a magnetic coupling and spring module. and a valve module; the downhole safety valve control system includes a downhole comprehensive unit and an uphole comprehensive unit.