Comparative Evaluation of Polymer Screening and Oil Displacement Performance in Class III Reservoirs of the Daqing Oilfield.

Ming Yu, Yunwei He, Xin Jin, Tong Pei, Jinyun Wei, Fushan Li, Shuaishuai Zhao, Yanfu Pi

Abstract read

In one paragraph

Article in Polymers, 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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2 · The registry

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5 · Who and what money

Authors and funding

8 authors.

Ming YuGeological Research Institute of the Sixth Oil Production Plant, Daqing Oilfield Company Limited, Daqing 163114, China.

Yunwei HeGeological Research Institute of the Sixth Oil Production Plant, Daqing Oilfield Company Limited, Daqing 163114, China.

Xin JinGeological Research Institute of the Sixth Oil Production Plant, Daqing Oilfield Company Limited, Daqing 163114, China.

Tong PeiGeological Research Institute of the Sixth Oil Production Plant, Daqing Oilfield Company Limited, Daqing 163114, China.

Jinyun WeiKey Laboratory of Enhanced Oil and Gas Recovery of Ministry of Education, Northeast Petroleum University, Daqing 163318, China.

Fushan LiKey Laboratory of Enhanced Oil and Gas Recovery of Ministry of Education, Northeast Petroleum University, Daqing 163318, China.

Shuaishuai ZhaoKey Laboratory of Enhanced Oil and Gas Recovery of Ministry of Education, Northeast Petroleum University, Daqing 163318, China.ORCID 0009-0006-0996-9223

Yanfu PiKey Laboratory of Enhanced Oil and Gas Recovery of Ministry of Education, Northeast Petroleum University, Daqing 163318, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Class III reservoirs in the Daqing Oilfield are characterized by low permeability and strong heterogeneity, posing significant challenges to enhanced oil recovery (EOR). To improve the recovery efficiency of these reservoirs, the viscosifying ability, stability, shear resistance, and profile-control performance of fifteen polymer solutions were experimentally evaluated, and the two most compatible formulations were selected for the Daqing Class III reservoirs. Subsequently, a three-dimensional physical model equipped with real-time saturation monitoring was employed to compare the EOR performance of the selected polymers. The results indicate that a 1500 mg L

Indexed as

Class III reservoirenhanced oil recoverypolymer floodingpolymer screening

Identifiers

PMID41599443

DOI10.3390/polym18020147

PMCPMC12845389

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