Evaluation of the Water-Blocking Performance of Polyurethane Plugging System and Urea-Formaldehyde Plugging System in Xinjiang Oilfield.

Qianbing Lin, Guanyu Chen, Ruiqiang Dong, Xinyue Cui, Shiyu Zhang, Daoyong Li, Xinzhe Li, Lianghui Guo

Abstract read

In one paragraph

Article in Gels (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

8 authors.

Qianbing LinSchool of Engineering, China University of Petroleum-Beijing at Karamay, Karamay 834000, China.

Guanyu ChenSchool of Engineering, China University of Petroleum-Beijing at Karamay, Karamay 834000, China.

Ruiqiang DongSchool of Engineering, China University of Petroleum-Beijing at Karamay, Karamay 834000, China.

Xinyue CuiSchool of Engineering, China University of Petroleum-Beijing at Karamay, Karamay 834000, China.

Shiyu ZhangSchool of Engineering, China University of Petroleum-Beijing at Karamay, Karamay 834000, China.

Daoyong LiSchool of Engineering, China University of Petroleum-Beijing at Karamay, Karamay 834000, China.

Xinzhe LiSchool of Engineering, China University of Petroleum-Beijing at Karamay, Karamay 834000, China.

Lianghui GuoSchool of Engineering, China University of Petroleum-Beijing at Karamay, Karamay 834000, China.ORCID 0000-0002-5010-249X

Funding

2025 Karamay Innovative Environment Construction Plan (Innovative Talents) Project 2025DB0080China University of Petroleum, Beijing XQZX20240013National Natural Science Foundation of China 52562047Open fund project of Key Laboratory for EOR of fractured vuggy reservoirs of Sinopec in 2025 XQHX20250156Science and Technology Department of Xinjiang Uyghur Autonomous Region 2025D01A151Xinjiang Tianshan Innovation Team for Research and Application of High-Efficiency Oil and Gas Pipeline Transportation Technology 2022TSYCTD0002Xinjiang Uygur Autonomous Region Disease Prevention and Control Center XQZX20240054

6 · The paper itself

Abstract

Water channeling during water injection in mid-to-late development stages of low-permeability reservoirs in Xinjiang leads to a rapid water cut increase and reduced oil displacement efficiency, causing significant economic losses. This study systematically investigated two chemical systems-a polyurethane (PU) plugging system and a urea-formaldehyde (UF) plugging system-under simulated Xinjiang reservoir conditions. The PU plugging system formulation was optimized through control variable experiments, and both systems were evaluated for rheological properties, curing behavior, mechanical strength, salinity and temperature adaptability, and plugging performance using sand-pack displacement tests. The optimized PU plugging system cured at 80 °C for 1 h achieved a maximum plugging rate of 96% and a breakthrough pressure gradient of 4.2 MPa·m

Indexed as

low-permeability reservoirplugging performancepolyurethane plugging systemurea-formaldehyde plugging systemwater-blocking

Identifiers

PMID42354367

DOI10.3390/gels12060469

PMCPMC13298424

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.