一种新型无荧光防塌降滤失剂的性能研究

A NON-FLUORESCENT SHALE/FILTRATION CONTROLLER

介绍了一种新型无荧光防塌降滤失剂YW 2 2的性能研究情况 ,它是一种油溶性单体和水溶性阳离子单体的共聚物。实验对YW 2 2的降失水效果、抑制性能、抗温性能、润滑性等指标进行了评价。室内及现场实验结果表明 ,YW 2 2有明显的降失水和防塌作用 ,能抗 16 0℃以上的高温 ,而且润滑效果好 ,综合结果显示YW 2

A non-fluorescent shale/ filtration controller, YW-22, has been synthesized which is a copolymer of a water-soluble cationic monomer and an oil-soluble monomer. The performance evaluation conducting in laboratory and oilfield has indicated that YW-22 is a multifunctional additive. It has excellent performance in fluid loss control and shale inhibition, and can be used in high temperature drilling system. Meanwhile YW-22 can decrease the friction factor (Kf) significantly in drilling fluids. Its non-fluorescent property has been testified in laboratory and is of importance for well logging.