The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 03, 2026

Filed:

Sep. 07, 2025
Applicant:

China University of Petroleum (East China), Dongying, CN;

Inventors:

Changyin Dong, Dongying, CN;

Zhendong Li, Dongying, CN;

Honggang Liu, Dongying, CN;

Jinyi Zhang, Dongying, CN;

Zhangyu Li, Dongying, CN;

Na Li, Dongying, CN;

Jiayi Ren, Dongying, CN;

Chuwei Zhang, Dongying, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 43/267 (2006.01); E21B 41/00 (2006.01);
U.S. Cl.
CPC ...
E21B 43/267 (2013.01); E21B 41/00 (2013.01);
Abstract

This disclosure belongs to the oil and gas exploitation industry, and specifically relates to a combination parameter optimization design method for fracturing and packing dual-particle-size proppants for an unconsolidated sandstone reservoir. According to this disclosure, specific parameters of proppants including a packing particle size, a packing fracture length ratio, and a packing sequence are subjected to optimization design based on reservoir and oil well conditions, as well as corresponding dual-particle-size combination modes. Ultimately, comprehensive effects of realizing effective sand blocking, reducing invasion, blockage, and permeability damage of formation sand to a fracture packing layer, reducing fracture flow resistance, improving comprehensive conductivity, and releasing a production capacity of oil and gas wells are achieved.


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