Improving oil and gas flowability in tight carbonates with a novel solid delayed acid

Q Wang, F Zhou, D Yang, S Yu, H Fei, E Yao… - Physics of …, 2024‏ - pubs.aip.org
The economic development of tight carbonate reservoirs requires hydraulic or acid fracturing
stimulation. Acid fracturing better activates natural fractures, resulting in increased …

Study on rock strength weakening in multi-stage acid fracturing using continuous strength test

Q Wang, F Zhou, H Su, S Zhang, F Yu, R Dong, J Li… - Physics of …, 2024‏ - pubs.aip.org
Multi-stage acid fracturing can boost productivity in low-permeability limestone reservoirs,
with success hinging on differential etching and the strength of undissolved regions to keep …

Study on the microscopic percolation mechanism of different aqueous media huff‐n‐puff with cores in Fengxi tight oil reservoirs of Qinghai Oilfield

Z Dou, Z Yang, X Li, C Feng, Y Xue… - Energy Science & …, 2024‏ - Wiley Online Library
Abstract Huff‐n‐puff (HnF) is a crucial technology for effectively enhancing the oil recovery
(EOR) of tight oil reservoirs. Soaking period is the primary platform for injection medium …

Impact of interlayer mass transfer on CO2 flooding performance in heterogeneous tight reservoirs

R Gong, J Liu, S Liu, W Sun, D Zhang - Physics of Fluids, 2025‏ - pubs.aip.org
CO 2 flooding can effectively enhance oil recovery in tight oil reservoirs. However, the
mobilization characteristics and interlayer mass transfer mechanism of CO 2 and crude oil in …

The mobilization mechanism of low oil saturation reservoirs

H Bai, F Zhou, J Wu, K Zhang, Z Ding, H Xu, Y Dong… - Physics of …, 2024‏ - pubs.aip.org
After fracturing with a guar fluid system in Chang 8 oil reservoir, some wells have high oil
production, and some have low production and even only produce water. Therefore, a …