Intelligent test system and method for multi-segment fractured horizontal well

US9605531B2 · kind B2 · utility

Assignee

• PetroChina Company Limited · CN

Inventors

• Hong Xin · Bonsall, US
• Tianshou Zhu · Beijing, CN
• Lijun Mu · Beijing, CN
• Wei-Lun Huang · Sunnyvale, US
• Ming Li · Xuzhou, CN
• Qingming Gan · Beijing, CN
• Haitao Yang · Nanhu, CN
• Lei Zhang · Nanhu, CN
• Ertao Han · Beijing, CN

Key dates

• Filing date: Sep 17, 2015
• Grant date: Mar 28, 2017
• Expiry date: Sep 17, 2035

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B49/087
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

An intelligent test system and a method for a multi-segment fractured horizontal well. The intelligent test method for a multi-segment fractured horizontal well comprises: step A: placing a test tubular column into an underground horizontal section; step B: setting a pressure building packer and a hanging packer by means of pressurization after the test tubular column is placed into an underground designed position; step C: breaking a hydraulic release connector to separate the hydraulic release connector from a seal pipe; step D: pulling out a first oil pipe, and reserving the tubular column comprising the seal pipe and located on the downstream part of the seal pipe in a horizontal well; and step E: placing a production tubular column or a communications tubular column into a vertical section of the horizontal well.