改性植物酚类磺酸盐对钻井液抑制性的影响

THE INFLUENCE OF THE MODIFIED VEGETABLE PHENOL-SULFATES ON THE DRILLING FLUID'S INHIBITOR

文章对比研究了改性树木酚类磺酸盐FCLS和CLT对聚合物钻井液抑制性的影响。实验结果表明 :传统的经络合改性的植物酚类磺酸盐FCLS加剧了聚合物钻井液中岩屑的水化分散 ,从而破坏了聚合物钻井液的抑制性 ;新型的经络合—氧化—缩合—交联多步改性的植物酚类磺酸盐CLT增强了聚合物在岩屑表面的吸附包被能力 。

The influence of the modified vegetable phenol-sulfates (FCLS and CLT) on the drilling fluid's inhibitor properties are contrast investigated in this paper. FCLS is a kind of traditional vegetable phenol-sulfate that has been modified by the complex reaction. CLT is a kind of novel vegetable phenol-sulfate that has been continuously modified through the reactions of oxidation, condensation and cross-linking. Experimental results showed that effects of FCLS and CLT upon the polymer drilling fluids were different, FCLS aggravated the hydration-disperse of land-waste and damaged the inhibitor properties of polymer drilling fluids. But CLT heightened the polymer's adsorptive-warping ability on the outside surface of land-waste, and then enhanced the inhibitor properties of polymer drilling fluids.