The study shows that the swelling clay is the key factor that affects considerably the percolation feature of low permeability reservoir.
分析认为，膨胀性粘土的存在是影响低渗透油藏渗流特性的关键因素；
A generic term for soft, sticky, swelling clay formations that are frequently encountered in surface holes offshore or in sedimentary basins onshore near seas.
软地层、粘地层、膨胀性粘土地层的总称术语，通常在海洋钻井时的表层钻遇，或者在近海陆地钻井时的沉积盆地时钻遇。
The research results provides important basis for the design of side slope of swelling clay embankment dam and the consolidation and treatment of swelling clay foundation.
研究结果为膨胀粘土堤坝边坡设计以及膨胀粘土地基加固、处理提供了重要的依据。
In the cement composite, a hardened cement product is coated with a substance block agent composed chiefly of an aqueous dispersion of synthetic resin, a swelling clay mineral and a pigment.
其为在水泥硬化体上被覆有合成树脂水性分散体、膨润性粘土矿物及以颜料为主成分的物质隔绝剂所成的水泥复合体。
The erosion process as visualized by the author was intimately related to the swelling of the clay.
根据作者的观察，冲刷过程与粘土的膨胀有关。
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。
The interaction of paraffin wax emulsions with clay dispersions was investigated with respect to size distribution, shale recovery, line swelling and lubrication properties.
通过对粒度分布、页岩滚动回收率、线性膨胀和润滑性的测定，研究了石蜡微小乳状液与黏土分散体系的相互作用。
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。
The results showed that the content of clay particles was significantly correlated with soil swelling rate.
结果表明：土壤粘粒含量与土壤膨胀率呈显著正相关；
The test results indicate that: 1) Compared with unmodified soils, the free swelling ratio, plastic index and clay fraction of fly ash-treated soils and Lime-treated soils decrease obviously.
试验结果表明：1）相比于未改性土，粉煤灰改性土和石灰改性土自由膨胀率、塑性指数、胶粒含量都显著降低；
The PTA may be by means of actions of its surficial positive charges and intermolecular forces among macromolecules to absorb on the surface of clay grains to prevent clay from hydrating swelling.
PTA粘土稳定剂是通过其表面的正电荷和大分子之间的分子间力强烈地吸附在粘土颗粒表面，防止粘土水化膨胀而起作用的。
The paper also has a discussion on the influence of the soil fabric of compacted clay on swelling characteristics.
文中还讨论了压实的膨胀粘土结构对膨胀性的影响。
Swelling rock, formed in natural geologic processes and composed of a great deal of strong hydrophilic clay minerals, is of remarkable shrink-swell properties.
膨胀岩土是自然地质过程中形成的由强亲水性矿物构成的一种具有显著胀缩性的地质体。
To improve well-operation performance, capillary suction-time testing was performed to determine salt concentration required to prevent clay swelling.
为了提高井下作业的效果，通过测试毛管渗吸时间来确定抑制黏土膨胀所需的盐浓度。
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。
A new polyelectrolyte hydrogel and its hybrid hydrogel with the Laponite clay were prepared, and their swelling properties were investigated.
基于一种新型聚电解质水凝胶及其与黏土杂化水凝胶的合成，考察了所得凝胶的溶胀性能。
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。
The result from the testing by volume flow overrate demonstrates that when injected water as much as 150 fold of pore volume is used, permeability is reduced as much as 28% due to clay swelling.
体积流过量试验结果显示，当注入150倍孔隙体积注入水时，因粘土膨胀，渗透率下降达28%。
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。
If the formation water in Guantao formation is used as a source of water injection, swelling preventing agent shall be added to the injected water to prevent formation damage from hydrated clay swell.
若将馆陶组地层水作为注入水水源，必须在注入水中加入防膨剂以防止由于粘土水化膨胀而造成的地层伤害。
Their structures are verified by infrared spectroscopy. Its ability of flocculation, anti-clay-swelling, heat resistance and salt tolerence are studied.
对它的结构进行了红外表征，就其絮凝、粘土防膨、抗温、抗盐性能进行了研究。
For the water flooding development of water sensitive reservoir, pretreatment must be carried out to prevent the clay swelling.
对于水敏油藏注水开发，必须进行防膨预处理。
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。
For oilfield chemical additives, such as clay anti-swelling agent, thickening agent used oil acidification.
聚丙烯酰胺还可用于油田化学助剂，如粘土防膨剂、油田酸化用稠化剂。
For oilfield chemical additives, such as clay anti-swelling agent, thickening agent used oil acidification.
聚丙烯酰胺还可用于油田化学助剂，如粘土防膨剂、油田酸化用稠化剂。
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