Abstract：

Advances and key techniques of temporary plugging and diverting fracturing opening of new fractures, and all three are closely related. Secondly, various types of temporary plugging agents are applied in the field, including solid particles, fibers, gels, foams, etc. Suitable temporary plugging agents need to be selected according to the reservoir characteristics, especially considering their temperature resistance, degradability and intensity. Presently, degradable particles and fiber temporary plugging agents were the mainstream development trend. Finally, the TPDF technique had a wide range of application scenarios, and its effectiveness had been confirmed by various monitoring methods. During the operation, different filling methods need to be adopted according to the difference in temporary plugging agent types, and the amount and timing of temporary plugging agent can be optimized and designed through various advanced technical means such as fiber optics outside the pipe and high frequency pressure monitoring. With the application and promotion of these advanced technologies, the TPDF operation will finally realize real-time regulation and optimization.

Key words：unconventional oil and gas; degradable diverter; transport and plugging; fracture propagation; fracturing technique

Received： 2022-04-19

Corresponding Authors： zhoufj@cup.edu.cn

Cite this article：周福建, 袁立山, 刘雄飞, 王博, 李明辉, 李奔. 暂堵转向压裂关键技术与进展. 石油科学通报, 2022, 03: 365-381

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