Results 1 to 10 of about 1,130 (163)

Synthesis and Performance Evaluation of Graphene-Based Comb Polymer Viscosity Reducer

Energies, 2023
The high viscosity of heavy oil makes it difficult to realize its economic value. Therefore, improving the fluidity of heavy oil can effectively improve the economic benefit of the development of heavy oil resources.
Mingjie Li, Chunhui Yu
exaly   +3 more sources

Study on the Performance of a Novel Microbial-Assisted Chemical Viscosity Reduction Technology for Enhancing Heavy Oil Displacement Efficiency [PDF]

Molecules
High-viscosity reservoirs are widely distributed across various countries with abundant reserves. However, their high resin and asphaltene content leads to elevated oil viscosity and low recovery rates.
Fan Zhang, Qun Zhang, Zhaohui Zhou, Yangnan Shangguan, Wenfeng Song, Yawen Zhou, Huilin Wang, Qianqian Tian, Kang Tang, Lei Liu   +9 more
doaj   +2 more sources

Research on Mechanism of Enhancing Recovery of Heavy Oil With N2 Huff-n-Puff Assisted by Viscosity Reducer

Frontiers in Energy Research, 2020
In this paper, viscosity reducers with viscosity reduction ability and foaming ability and the recovery efficiency in N2 huff-n-puff were studied. The optimal 4# viscosity reducer was selected by evaluating the viscosity reduction ability, emulsion ...
Lei Tao
exaly   +3 more sources

A Review of Weak Gel Fracturing Fluids for Deep Shale Gas Reservoirs [PDF]

Gels
Low-viscosity slickwater fracturing fluids are a crucial technology for the commercial development of shallow shale gas. However, in deep shale gas formations with high pressure, a higher sand concentration is required to support fractures.
Shichu Yang, Weichu Yu, Mingwei Zhao, Fei Ding, Ying Zhang   +4 more
doaj   +2 more sources

High-Efficiency High-Temperature-Resistant Nanosilica Viscosity Reducer for Extra-Heavy Oil Viscosity Reduction [PDF]

ACS Omega
Dongdong Liu, Yefei Wang, Hao Liang, Gang Li   +3 more
doaj   +2 more sources

Study on Viscosity Reducer Flooding Technology for Deep Low Permeability Extra Heavy Oil Reservoirs

Geofluids, 2021
Deep low permeability extra heavy oil reservoir has the characteristics of high formation pressure, high crude oil viscosity, and low permeability.
Xiaopeng Cao, Zupeng Liu, Yong Yang, Shiming Zhang, Yahui Bu, Sen Wang, Yipu Liang, Qihong Feng   +7 more
doaj   +1 more source

Insights into Enhanced Oil Recovery by Coupling Branched-Preformed Particle Gel and Viscosity Reducer Flooding in Ordinary Heavy Oil Reservoir

Geofluids, 2023
Viscosity reducer flooding has been successfully applied in tertiary oil recovery of ordinary heavy oil reservoirs. However, lowering interfacial tension or reducing oil viscosity, which is more critical for viscosity reducer to improve oil recovery of ...
Zongyang Li
doaj   +1 more source

Microscopic Visualization Experimental Study on the Effect and Mechanism of Viscosity Reducer on Emulsification of Heavy Oil

Energies, 2023
Viscosity-reducer flooding is an effective method to improve oil recovery after the water flooding of heavy oil, and water-in-oil emulsion (W/O emulsion) is easily formed during this process.
Youwei Jiang, Chao Wang, Fusheng Zhang, Zongyao Qi, Guoliang Liu, Jiu Zhao, You Zhou, Bojun Wang, Guofeng Lian, Pengcheng Liu   +9 more
doaj   +1 more source

Synthesis and Molecular Dynamics Simulation of Amphiphilic Low Molecular Weight Polymer Viscosity Reducer for Heavy Oil Cold Recovery

Energies, 2021
In order to reduce the viscosity of heavy oil, the performance of emulsifying viscosity reducers is limited. In this study, a new kind of amphiphilic low molecular weight viscosity reducer was prepared by emulsion copolymerization of acrylamide (AM ...
Chao Ma, Xingyu Liu, Longlong Xie, Yan Chen, Wendong Ren, Wen Gu, Minghua Zhang, Huili Zhou   +7 more
doaj   +1 more source

Viscosity-reducing experiment of heavy oil emulsion by water bath and microwave heating

You-qi chuyun, 2021
In order to explore the viscosity reduction characteristics and mechanism of heavy oil emulsion by water bath and microwave heating, the comparative viscosity-reducing experiments by water bath and microwave heating were designed with the Venezuela heavy
Yunlong WANG, Hanyong LI, Wangyi GUO, Hang GAO, Yindi ZHANG   +4 more
doaj   +1 more source