Shale oil in-situ lightening development method, apparatus and system

US10995599B2 · kind B2 · utility

Assignee

• PetroChina Company Limited · CN

Inventors

• Lianhua Hou · Beijing, CN
• Caineng Zou · Beijing, CN
• Suyun Hu · Beijing, CN
• Jinhua Fu · Nanhu, CN
• Xianyang Liu · Beijing, CN
• Xia Luo · Beijing, CN
• Jinghong Wang · Beijing, CN
• Lijun Zhang · Shandong, CN
• Senhu Lin · Beijing, CN
• Zhi Yang · Beijing, CN
• Songtao Wu · Ann Arbor, US
• Jingwei Cui · Beijing, CN

Key dates

• Filing date: Jul 11, 2019
• Grant date: May 4, 2021
• Expiry date: Jul 11, 2039

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B49/00
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

Embodiments of the present disclosure disclose a shale oil in-situ lightening development method, apparatus and system, wherein the method comprises: determining an effective shale interval according to an interval with a total organic carbon greater than a first lower limit value in a target stratum; determining a favorable region for shale oil in-situ lightening development according to a thickness of the effective shale interval and an effective layer thickness ratio, wherein the effective layer thickness ratio includes a ratio of the thickness of the effective shale interval to a thickness of a shale section, and the shale section includes the effective shale intervals and interlayers therebetween. By utilizing the embodiments of the present disclosure, the benefit of the shale oil in-situ lightening development can be improved.