Mineral oils are frequently used for the making of synthetic-based drilling fluids. However, there are several downsides associated with these oils. These mineral oils are non-renewable, toxic in nature, non-biodegradable and prompting towards the incredible expense of waste treatment. In this research article, an anionic surfactant sodium methyl ester sulfonate (SMES) was synthesized using sunflower oil. SMES is then used to formulate environment-friendly oil-in-water emulsion-based drilling fluid. The synthesized surfactant is characterized by FT-IR, ¹H-NMR and TGA analysis. The effect of xanthan gum (XG), bentonite, and sodium methyl ester sulfonate (SMES) on the rheology and filtration characteristics of developed emulsion based drilling fluid was analyzed thoroughly. The developed emulsion based drilling fluid had lower friction coefficient in case of oil concentration compared to SMES concentration. The zeta potential has been measured to check the emulsion stability and it has been attended that an increase in the concentration of SMES (0.3–0.7 wt/v %) and xanthan gum (0.2–0.6 wt/v %) has improved the stability of the emulsion. The contact angle and interfacial tension were analyzed and it was observed that interfacial tension was reduced from 102.5 to 25.35 mN/m and contact angle increased from 32.5° to 92.3°. The thermal stability of oil-in-water emulsion based drilling fluid was maintained up to 140 °C.

矿物油通常用于制造合成基钻井液。然而，这些油有一些缺点。这些矿物油是不可再生的，本质上是有毒的，不可生物降解的，并促使浪费大量的废物处理。在这篇研究文章中，使用葵花籽油合成了一种阴离子表面活性剂甲酯磺酸钠（SMES）。然后，将SMES用于配制环保型水包油乳液基钻井液。合成的表面活性剂的特征在于FT-IR，¹1 H-NMR和TGA分析。彻底分析了黄原胶（XG），膨润土和甲基磺酸甲酯钠（SMES）对开发的乳化钻井液的流变学和过滤特性的影响。与SMES浓度相比，在油浓度的情况下，开发的乳液基钻井液具有较低的摩擦系数。已测量了ζ电位来检查乳液的稳定性，并发现SMES（0.3–0.7 wt / v％）和黄原胶（0.2–0.6 wt / v％）的浓度增加可以改善乳液的稳定性。乳液。分析了接触角和界面张力，观察到界面张力从102.5降低到25.35 mN / m，接触角从32.5°增加到92.3°。