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Zhou R, Zhong H, Ye P, Wei J, Zhang D, Zhong L, Jiao T. Experiment on the Scaling Mechanism of Strong Alkaline-Surfactant-Polymer in a Sandstone Reservoir. ACS OMEGA 2022; 7:1794-1802. [PMID: 35071873 PMCID: PMC8772299 DOI: 10.1021/acsomega.1c04925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 12/17/2021] [Indexed: 06/14/2023]
Abstract
Most of the mature oilfields are facing the problem of great difficulty in exploitation currently. Alkaline-surfactant-polymer (ASP) flooding has been widely used in Daqing Oilfield as a tertiary oil recovery technology that can effectively enhance oil recovery (EOR). However, various degrees of scaling appeared in field application tests, which hindered the large-scale application of this technology. The damage and scaling mechanisms of strong alkali-surfactant-polymer (SASP) flooding to heterogeneous reservoirs with high clay mineral content are still unclear. In this study, several sets of experiments have been carried out to determine the core mineral composition and the pore structure. Additionally, the damage mechanism and mineral corrosion with different permeabilities can be explored from a microscopic point of view. The results indicate that the corrosion of SASP reduces the contents of quartz and kaolinite, while the illite/montmorillonite mixed layer increases. In addition, there is chlorite and secondary quartz generation, which do not exist in the original mineral composition. Clay particles and sediment are easy to form bridges or stay on the surface and block the pore throats, which results in core seepage capacity reduction. All our preliminary results have contributed to the present understanding of scaling during ASP flooding. Moreover, it is of great significance to guide ASP flooding field application and prevent scaling.
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Affiliation(s)
- Runnan Zhou
- Key
Laboratory for Enhanced Oil & Gas Recovery of the Ministry of
Education, Northeast Petroleum University, Daqing 163318, Heilongjiang, P. R. China
| | - Huiying Zhong
- Key
Laboratory for Enhanced Oil & Gas Recovery of the Ministry of
Education, Northeast Petroleum University, Daqing 163318, Heilongjiang, P. R. China
| | - Peng Ye
- ASP
Flooding Project Department, Daqing Oilfield
Company Limited, Daqing 163318, Heilongjiang, P. R. China
| | - Jianguang Wei
- Key
Laboratory of Continental Shale Hydrocarbon Accumulation and Efficient
Development, Ministry of Education, Institute of Unconventional Oil
& Gas, Northeast Petroleum University, Daqing 163318, Heilongjiang, P. R. China
| | - Dong Zhang
- Key
Laboratory for Enhanced Oil & Gas Recovery of the Ministry of
Education, Northeast Petroleum University, Daqing 163318, Heilongjiang, P. R. China
- Postdoctoral
Research Station, Daqing Petroleum Administration
Bureau, Daqing 163318, Heilongjiang, P. R. China
| | - Lianbin Zhong
- ASP
Flooding Project Department, Daqing Oilfield
Company Limited, Daqing 163318, Heilongjiang, P. R. China
| | - Tianyu Jiao
- ASP
Flooding Project Department, Daqing Oilfield
Company Limited, Daqing 163318, Heilongjiang, P. R. China
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Gama BMVD, Barbosa CMBDM, Rodríguez-Díaz JM, Sales DCS, Duarte MMMB. Adsorption and recovery of cadmium and copper ions in mono and bicomponent systems using peanut shells biochar as a sustainable source: model development. CHEM ENG COMMUN 2021. [DOI: 10.1080/00986445.2021.1903885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | | | - Joan Manuel Rodríguez-Díaz
- Laboratory of Chemical and Biotechnological Analysis, Technical University of Manabí, Ecuador
- Chemical Processes Department, Faculty of Physical and Chemical Mathematical Sciences, Technical University of Manabí. Av. Urbina y Che Guevara, Portoviejo—Manabí, Ecuador
- Chemical Engineering Department, Federal University of Paraíba, Brasil João Pessoa, PB, Brazil
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