literature review of water alternating gas injection

Optimizing Injection Process of Water-Alternate-Gas Using Different Produced Gas Densities in Enriched-Gas Flooding

• Published: 19 June 2020
• Volume 56 , pages 271–284, ( 2020 )

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• Yong Wang 1 , 4 ,
• Zhengwu Tao 2 ,
• Donghong Tian 1 ,
• Xin Ma 3 &
• Zonghong Feng 5  

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An efficient optimization and design method has been proposed and developed for Enriched-gas Water-Alternating-Gas (EWAG) injection process. The proposed technique is able to quantitatively determine the sizes of the enriched-gas slug and water slug for each cycle of the water-alternating-gas (WAG) injection process, as well as the total number of injection cycles. Applying this method provides the opportunity to implement the WAG scenario more efficient and economical. The numerical simulation showed that in comparison with other conventional WAG scenarios with traditional optimization approach, the EWAG has the obvious advantages of evaluation of indices, such as the oil recovery factor and cumulative net cash flow.

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Abbreviations

Continuous gas injection

Liquefied petroleum gas

Minimum miscible enrichment

Original oil in place

Pore volume

Remaining oil in place

Tertiary Recovery Factor

Water-alternating-gas

Water flooding

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Acknowledgments

This work was supported by the Program of Science and Technology of Sichuan Province of China (No. 20YYJC01 45).

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School of Sciences, Southwest Petroleum University, Chengdu, China

Yong Wang & Donghong Tian

Research Institute of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, China

Zhengwu Tao

School of Science, Southwest University of Science and Technology, Mianyang, China

State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, China

School of Mathematics and Physics, Lanzhou Jiaotong University, Lanzhou, China

Zonghong Feng

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Translated from Khimiya i Tekhnologiya Topliv i Masel , No. 2, pp. 93 – 100, March – April, 2020.

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Wang, Y., Tao, Z., Tian, D. et al. Optimizing Injection Process of Water-Alternate-Gas Using Different Produced Gas Densities in Enriched-Gas Flooding. Chem Technol Fuels Oils 56 , 271–284 (2020). https://doi.org/10.1007/s10553-020-01137-3

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Published : 19 June 2020

Issue Date : May 2020

DOI : https://doi.org/10.1007/s10553-020-01137-3

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