Frontiers in Earth Science (May 2025)
Investigation into the microscopic mechanism underlying formation damage induced by the reinjection of oil-bearing wastewater
- Chao Tang,
- Chao Tang,
- Chao Tang,
- Ke Du,
- Ke Du,
- Ke Du,
- Gongshuai Guan,
- Gongshuai Guan,
- Gongshuai Guan,
- Xiangfu Gai,
- Xiangfu Gai,
- Xiangfu Gai,
- Guo Li,
- Guo Li,
- Guo Li,
- Qingsong Li,
- Qingsong Li,
- Qingsong Li,
- Lichao Wang,
- Lichao Wang,
- Lichao Wang,
- Hongguang Guo,
- Hongguang Guo,
- Hongguang Guo,
- Wenping Sun,
- Wenping Sun,
- Wenping Sun,
- Chao Gao,
- Chao Gao,
- Chao Gao,
- Weiwei Xu,
- Weiwei Xu,
- Weiwei Xu,
- Zhuoyuan Lu,
- Junwei Su,
- Dengke Liu
Affiliations
- Chao Tang
- Daqing Oilfield Production Technology Institute, Daqing, China
- Chao Tang
- Heilongjiang Provincial Key Laboratory for Increasing Oil and Gas Reservoir Yield, Daqing, China
- Chao Tang
- State Key Laboratory of Continental Shale Oil, Daqing, China
- Ke Du
- Daqing Oilfield Production Technology Institute, Daqing, China
- Ke Du
- Heilongjiang Provincial Key Laboratory for Increasing Oil and Gas Reservoir Yield, Daqing, China
- Ke Du
- State Key Laboratory of Continental Shale Oil, Daqing, China
- Gongshuai Guan
- Daqing Oilfield Production Technology Institute, Daqing, China
- Gongshuai Guan
- Heilongjiang Provincial Key Laboratory for Increasing Oil and Gas Reservoir Yield, Daqing, China
- Gongshuai Guan
- State Key Laboratory of Continental Shale Oil, Daqing, China
- Xiangfu Gai
- Daqing Oilfield Production Technology Institute, Daqing, China
- Xiangfu Gai
- Heilongjiang Provincial Key Laboratory for Increasing Oil and Gas Reservoir Yield, Daqing, China
- Xiangfu Gai
- State Key Laboratory of Continental Shale Oil, Daqing, China
- Guo Li
- Daqing Oilfield Production Technology Institute, Daqing, China
- Guo Li
- Heilongjiang Provincial Key Laboratory for Increasing Oil and Gas Reservoir Yield, Daqing, China
- Guo Li
- State Key Laboratory of Continental Shale Oil, Daqing, China
- Qingsong Li
- Daqing Oilfield Production Technology Institute, Daqing, China
- Qingsong Li
- Heilongjiang Provincial Key Laboratory for Increasing Oil and Gas Reservoir Yield, Daqing, China
- Qingsong Li
- State Key Laboratory of Continental Shale Oil, Daqing, China
- Lichao Wang
- Daqing Oilfield Production Technology Institute, Daqing, China
- Lichao Wang
- Heilongjiang Provincial Key Laboratory for Increasing Oil and Gas Reservoir Yield, Daqing, China
- Lichao Wang
- State Key Laboratory of Continental Shale Oil, Daqing, China
- Hongguang Guo
- Daqing Oilfield Production Technology Institute, Daqing, China
- Hongguang Guo
- Heilongjiang Provincial Key Laboratory for Increasing Oil and Gas Reservoir Yield, Daqing, China
- Hongguang Guo
- State Key Laboratory of Continental Shale Oil, Daqing, China
- Wenping Sun
- Daqing Oilfield Production Technology Institute, Daqing, China
- Wenping Sun
- Heilongjiang Provincial Key Laboratory for Increasing Oil and Gas Reservoir Yield, Daqing, China
- Wenping Sun
- State Key Laboratory of Continental Shale Oil, Daqing, China
- Chao Gao
- Daqing Oilfield Production Technology Institute, Daqing, China
- Chao Gao
- Heilongjiang Provincial Key Laboratory for Increasing Oil and Gas Reservoir Yield, Daqing, China
- Chao Gao
- State Key Laboratory of Continental Shale Oil, Daqing, China
- Weiwei Xu
- Daqing Oilfield Production Technology Institute, Daqing, China
- Weiwei Xu
- Heilongjiang Provincial Key Laboratory for Increasing Oil and Gas Reservoir Yield, Daqing, China
- Weiwei Xu
- State Key Laboratory of Continental Shale Oil, Daqing, China
- Zhuoyuan Lu
- International School, Beijing University of Posts and Telecommunications, Beijing, China
- Junwei Su
- School of Human Settlement and Civil Engineering, Xi’an Jiaotong University, Xi’an, China
- Dengke Liu
- School of Human Settlement and Civil Engineering, Xi’an Jiaotong University, Xi’an, China
- DOI
- https://doi.org/10.3389/feart.2025.1611943
- Journal volume & issue
-
Vol. 13
Abstract
The reinjection of treated oilfield water into formations stands as one of the commonly employed methods in oilfield water injection development. However, certain treated waters contain a substantial number of suspended oil droplets, which can lead to the blockage of flow paths and pore channels. At present, there is a deficiency in experimental verification results regarding the reinjection of oily wastewater, and a lack of a reasonable explanation for the micro-mechanism underlying oil droplet migration. Consequently, in order to elucidate the distribution characteristics of oil droplets and the microscopic mechanism of oil droplet migration during the process of oilfield treatment water reinjection, a simulated oil and microfluidic chip were fabricated to conduct relevant experiments. The experimental results reveal that the particle size of oil droplets is the most crucial control indicator affecting reservoir blockage, with a porosity damage rate of 21.9% and a permeability damage rate of 20.9%. The results further indicate that large oil droplets directly block the pores, while small oil droplets blocking the pores exhibit two regional characteristics: saturated blockage and unsaturated blockage. Additionally, the numerical simulation results are in agreement with the experimental findings. This study offers a framework for the implementation of wastewater reinjection in oilfield operations.
Keywords
