Apparatus for tripping oil pipe and system for automatic well workover

US9732570B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• RESEARCH INSTITUTE OF PETROLEUM ENGINEERING, SHENGLI OIL FIELD, SINOPEC · CN

Inventors

• Minxuan Wang · Dongying, CN
• Guangqi Gao · Dongying, CN
• Lei Zhang · Nanhu, CN
• Huihui Song · Shandong, CN
• Zeng Fu · Shandong, CN
• Hui Zhang · Tangxia, CN
• Zhengquan CHENG · Shandong, CN
• Bin Wei · Mechanicville, US
• Xiliang Li · Shandong, CN
• Huawen Shu · Shandong, CN
• Qiuhan Su · Dongying, CN
• Qianwen Tang · Dongying, CN

Key dates

• Filing date: Jan 9, 2015
• Grant date: Aug 15, 2017
• Expiry date: Sep 20, 2035

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B19/16
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

An apparatus for tripping oil pipe and a system for automatic well workover comprises an elevator transfer device for transferring an elevator connected with an oil pipe, the elevator transfer device being structured for enabling continuous, automatic tripping operations of the oil pipe. The elevator transfer device comprises a lifting assembly used for lifting and releasing an oil pipe engaged with the elevator, and an elevator transport assembly used for transferring an elevator at a wellhead and/or an elevator on the lifting assembly. The apparatus for tripping oil pipe can lower the labor intensity and improve operation safety.