Investigation of the interfacial phenomena in the presence of nonionic surfactants and a silica nanoparticle at the n-decane-water interface: Insights from molecular dynamics simulation

Faraji Chanzab, Farid; Ahmadi, Mohammad; Sharifi, Mohammad

doi:10.1016/j.molliq.2023.123789

Cited by 2 publications

(1 citation statement)

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“…Studies have shown that surfactant pollutants in the environment can be completely eliminated through natural microbial decomposition, i.e., biodegradation. The concentration, molecular structure, and environmental conditions play decisive roles in the biodegradability of surfactants . Among anionic surfactants, linear fatty soaps exhibit the strongest biodegradability, followed by primary fatty alcohol sulfates, linear ether sulfates (AES), linear alkyl or alkenyl sulfonates (SAS), and linear dodecylbenzenesulfonic acid sodium salts (ABS).…”

Section: Resultsmentioning

confidence: 99%

Preferred Ratio and Properties of Microfoam Drilling Fluid for Gas Extraction in Soft Coal Seams

Cheng,

Hou,

Luo

et al. 2024

Energy Fuels

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During the gas extraction drilling process, especially the soft coal seam drilling process, due to the constraints of geological conditions, technical conditions, and other factors, it is easy to encounter stuck holes, blowout, lost circulation, and hole collapse, which affect the realization of efficient gas management. In the petroleum industry, microfoam drilling fluid has unique advantages as a drilling and flushing medium. Through the response surface method, this study conducts a preliminary experimental study on the types of foaming agents, foam stabilizers, modified bentonite materials, and filtrate reducers and determines the optimal formula as 3.98% modified bentonite + 0.586% compound foaming agent + 0.776% foam stabilizer + 1% sulfonated phenolic resin + 2% carboxymethyl starch sodium. The performance of the microfoam drilling fluid system is tested. Subsequently, a simulated soft coal seam drilling test is carried out to verify the effectiveness of the developed directional microfoam drilling fluid for protecting coal rock holes. This microfoam drilling fluid system technology can improve the drilling quality of the sealing section of coal seam gas extraction drilling and effectively improve the gas extraction rate of coal mines.

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Section: Resultsmentioning

confidence: 99%