The new low molecular weight fracturing fluid, without breaking agent, is developed which is provided with lower residue and harm, and then recycled specially against low rateofpermeation oilfield.
针对低渗、特低渗油田，开发出一种不需破胶剂、低残渣、低伤害、可循环再利用的新型低分子压裂液。
2
The results of a series of permeationexperiments prove that the permeationrateof clean filter media decreases with thepermeation time increaese.
过滤介质的透水实验表明，清洁过滤介质的透水速率随时间延长而降低。
3
The factors affecting the performance of membrane and permeationrateof ultrafilters were studied.