氧化酚类磺酸盐分子结构及油田化学特性研究

Molecular Structure of Oxidized Phenol Sulfonates and Characteristicics of Oilfield Chemistry

通过实验研究了从兴安落叶松、马尾松、木麻黄中提取的植物酚类磺酸盐 ,在适宜的氧化反应条件下 ,所得氧化产物的分子结构特性及油田化学特性。实验结果表明 :氧化反应使植物酚类磺酸盐之间发生了偶合 ,产物中分子量大于 5 0 0 0级分的相对含量显著提高且亲水官能团的含量显著变化 ;产物在易水化分散的粘土类颗粒表面具有很强的吸附包被能力 ,在聚合物钻井液中有良好的降粘降滤失作用。

Characteristics of the molecular structure and oilfield chemistry of oxidation products of plant phenol sulfonates extracted from the trees of dahurian larch,pinus massoniana and coast oak are studied experimentally under proper conditions of oxidation reaction The result of the experiment shows that coupling is occurred between the plant phenol salfonates in the oxidation reaction,the relative content of molecular weight higher than 5 000 in fraction is raised obviously and the content of hydrophilic functional group is changed evidently, the products have higher absorptive and encapsulating ability on the surface of easily hydrated clay particles and have good effects of visbreaking and fluid loss controlling in polymer drilling fluids, which provides sufficient theoretical bases for studying the plant phenol diluting agent with inhibition of newly enhanced polymer drilling fluid and its acting mechanism