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首页> 外文期刊>Journal of Petroleum Science & Engineering >The study of influence of electromagnetic waves on the wettability alteration of oil-wet calcite: Imprints in surface properties
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The study of influence of electromagnetic waves on the wettability alteration of oil-wet calcite: Imprints in surface properties

机译：电磁波对油湿方解石润湿性改变的影响研究：表面特性印迹

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摘要

The wettability of reservoir rock is one of the fundamental parameters determining the flow of fluid in the porous media. This study has investigated the effect of microwaves on the wettability of calcite reservoir rock from Yaran, Iran, as the time interval of microwave radiation is one of the most important parameters affecting wettability. The reservoir rock samples were placed in a microwave oven filled with helium gas and subjected to microwave radiation at 5-min intervals from 5 to 35 min. Measurements of the contact angle between the oil and the rock indicated that the microwaves brought the angle from about 120 degrees primary state to 93 degrees at 35 min. At intervals of 5-15 min, no change in the wettability of the oil-wet rock was observed. Sulfur components had high absorption coefficients of microwaves, so initially reduced the amount of sulfur (S) on the surface of the oil-wet rock. Next, the nitrogen (N) and oxygen (O) elements were reduced, and eventually the carbon (C) levels began to decrease. This trend was observed in the zeta potential by changing the surface charge of the rock. Indeed, eliminating SNO polar compounds with a high potential for absorbing microwave caused the rock to become water-wet. Microwave radiation initially produced no change in the Fourier-transform infrared spectroscopy (FTIR) spectrum, as it continued, the peak intensity of the corresponding oil, such as the carboxylic acid functional group, declined, and the corresponding peaks of the rock became more intense, indicating a gradual change in the wettability. It can be interpreted that the aromatic compounds exist in oil and act as surface agent components. The results of this study can be used as a representation of the use of microwave radiation in hydrocarbon reservoirs to change the wettability and increase the production rate of reservoirs.
机译：水库岩石的润湿性是确定多孔介质中流体流动的基本参数之一。本研究已经调查了微波对伊朗yaran的核心岩石岩石润湿性的影响，因为微波辐射的时间间隔是影响润湿性最重要的参数之一。将储层岩石样品置于填充有氦气的微波炉中，并以5至35分钟以5分钟的间隔进行微波辐射。油气与岩石之间的接触角的测量表明，微波将角度从约120度初级态以35分钟带到93度。以5-15分钟的间隔，观察到油湿岩的润湿性没有变化。硫组分具有高吸收系数的微波，因此最初将硫的量降低在油湿岩的表面上。接下来，降低氮（N）和氧（O）元素，最终碳（C）水平开始减少。通过改变岩石的表面电荷，在Zeta电位中观察到这种趋势。实际上，消除了吸收微波的高潜力的SnO极性化合物导致岩石变得水湿。微波辐射最初在傅里叶变换红外光谱（FTIR）光谱中没有改变，因为它继续，相应的油的峰强度，例如羧酸官能团，下降，并且岩石的相应峰变得更加激烈，表明润湿性的逐渐变化。可以解释为油中存在芳族化合物并用作表面剂组分。该研究的结果可用作使用微波辐射在碳氢化合物储存器中的使用，以改变润湿性并提高储层的生产率。

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