Structural stabilizer for fiber and conventional proppant complex in efficient proppant migration and placement technology of fractured well and preparation method

US11845896B1 · kind B1 · utility

Assignees

• CHENGDU LEPS TECHNOLOGY CO., LTD. · CN
• Southwest Petroleum University · CN

Inventors

• Jianchun Guo · Chengdu, CN
• Shan Ren · Chengdu, CN
• Hao Yang · Sichuan, CN
• Yingxian Ma · Chengdu, CN
• Kun Wang · Beijing, CN
• Jiyu Wang · 安丰镇, CN
• Cong Lu · Chengdu, CN
• Jiapeng Zhang · Chengdu, CN
• Zhihong Zhao · Nanhu, CN
• Shaobin Zhang · Chengdu, CN
• Qianli Lu · Chengdu, CN
• Qingsong GUO · Chengdu, CN
• Su Diao · Chengdu, CN
• Chi Chen · Chengdu, CN
• Xin Lei · Nanhu, CN
• Mingyuan Zhou · Chengdu, CN
• Chaojun Tang · Chengdu, CN

Key dates

• Filing date: Jul 13, 2023
• Grant date: Dec 19, 2023
• Expiry date: Jul 13, 2043

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2208/12
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A structural stabilizer for a fiber and proppant complex to enhance proppant migration and placement in a fractured well during propping and a preparation method thereof are provided. The structural stabilizer consists of: water, inorganic salt, kaolinite, nitrogen-doped modified graphene oxide, anionic surfactant, non-ionic alkyl polyglucoside, and polyacrylamide. The structural stabilizer improves bonding between a proppant and a fiber when slick water is used in stimulated reservoir volume (SRV) fracturing, prevents separation of the fiber and the proppant during migration, thereby reducing escape rate of the fiber from the fiber and proppant complex.