Oil production in recent years decreases due to clay migration and the formation of wax and gel asphalt scales.
由于粘土运移及蜡和胶质沥青质垢的生成，近年来油井产量逐年下降。
The damage during hydraulic fracturing mainly included clay swelling and grain migration, built up created by mechanical impurities, the damage of fracture conductivity and so on.
水力压裂过程中存在的损害主要包括粘土膨胀与颗粒运移损害、机械杂质引起堵塞损害、支撑裂缝导流能力的损害等。
This study provides an important basis for further research on the micro dynamic mechanism of clay mineral swelling, disgregation and migration.
得到了一些十分重要的新认识，为进一步研究黏土矿物膨胀、分散、运移微观动力学机制提供了重要依据。
Swelling, cracking, dispersion, migration and plugging of clay minerals are the main factors of the reservoir damage in high-pressure low-permeability reservoirs.
粘土矿物的膨胀、破裂、分散、运移和堵塞是对高压低渗油藏储层伤害的主要因素之一。
The countermeasures are proposed to prevent fine-grain migration. The experimental study is conducted emphatically for the evaluation method of anti-swelling durability of clay stabilizer.
并提出了预防微粒运移技术对策，重点对粘土稳定剂的防膨长效性评价方法进行了探讨性的试验研究。
A chemical additive used in stimulation treatments to prevent the migration or swelling of clay particles in reaction to water-base fluid.
在增产处理中所用的一种化学添加剂。它用来防止粘土颗粒在与水基液反应时发生运移或膨胀。
It is found that the most important factors affecting the migration process of pollutants include the thickness and permeability of the clay liner, sorption capacities of both aquifer and clay liner.
粘土垫的厚度及其渗透性、压缩粘土垫层与含水层的吸附能力是填埋场污染物运移的重要近控制参数。
It is found that the most important factors affecting the migration process of pollutants include the thickness and permeability of the clay liner, sorption capacities of both aquifer and clay liner.
粘土垫的厚度及其渗透性、压缩粘土垫层与含水层的吸附能力是填埋场污染物运移的重要近控制参数。
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