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针对油井结蜡的问题,研制出一种溶蜡性能好、清蜡效率高、价格低的油基清蜡剂。对多种化学药剂进行考察,采用理化性能指标的测试方法对其进行评价和选优。测定清蜡剂的饱和溶蜡量(动态饱和溶蜡量、静态饱和溶蜡量)、溶蜡速度(动态溶蜡速度、静态溶蜡速度)和清蜡能力(即单位体积清蜡剂的饱和溶蜡量),确定了主剂、蜡晶分散剂和互溶剂的种类并优选得到最佳配方:85.3%GS+14.2%异丙醇+0.5%蜡晶分散剂UI,将该清蜡剂命名为LN-1。室温(25℃)条件,在不搅动的状态下清蜡速度能达到1.11mg/(min·mL),清蜡能力0.25g/mL。
Aiming at the problem of well waxing, a new wax-based oil-based waxing agent with good wax-dissolving property, high efficiency and low price of waxing was developed. A variety of chemical agents were inspected, using physical and chemical properties of the test method to evaluate its performance and selection. Determining the amount of saturated wax solution (dynamic saturated wax content, static saturated wax content), dissolving wax speed (dynamic dissolving speed, static waxing speed) and waxing ability The amount of wax dissolved), the type of the main agent, the wax crystal dispersant and the mutual solvent were determined and the best formula was obtained: 85.3% GS + 14.2% isopropyl alcohol + 0.5% wax dispersant UI, For LN-1. Under the condition of room temperature (25 ℃), the speed of wax removal can reach 1.11mg / (min · mL) without agitation and the ability of wax removal is 0.25g / mL.