对于裂缝性低渗透储层，由于其基质孔隙度小、渗透率低，天然微裂隙成为决定压裂液滤失的主要因素。
Micro fissure is a significant factor for determining the fluid loss in low-permeability fractured reservoir, due to its small porosity and low permeability in the matrix.
的 使用上应以降低滤失、减少伤害为重点。
The fracturing fluid for low permeability reservoirs shall be aimed at reducing filter loss and damage.
压裂液滤失系数是压裂设计中非常重要的参数。
The filtration coefficient of fracturing fluid is an important parameter in fracturing design.
降低泥浆通过渗透介质时的滤失量的一种特殊泥浆添加剂。
A group of mud additives specifically designed to lower the volume of filtrate that passes through a filter medium.
本发明在高温、高盐度钻井环境下具有优异的降滤失性能。
The invention has excellent filtration reduction property under high temperature and high salinity drilling environment.
本发明还公开了一种抗高温抗饱和盐的降滤失剂的制备方法。
The invention also discloses a preparation method for the anti-high temperature anti-saturation salt fluid loss agent.
充填效率随携砂液中砾石浓度、滤失量及砾石直径的增加而降低。
The packing efficiency decreases with the increase of gravel concentration in injected liquid, fluid loss to formation and gravel size.
滤失控制酸的成功应用，有效地解决了长期困扰酸液滤失的问题。
For the use of filtration control acid, this problem on acidizing fluid filtration is solved.
在几乎任何作业中，流体向储层的滤失都具有渗透率减损的高风险。
In almost any operation, loss of fluid to the reservoir formation carries a high risk of permeability damage.
酸化是油气田增产的主要措施，但酸液滤失问题严重影响了酸化效果。
Acidizing is important measure of oilfield stimulation, but the effect of acidizing is not better, because of fluid loss.
以碱法造纸黑液为主要原料，经过一步合成工艺制备钻井泥浆降滤失剂。
The filtrate loss controller for drilling fluid is prepared by one step method using alkaline paper making black liquor as main raw material.
该体系以控制酸液滤失为主要特点，较好的解决了酸化施工时酸液的滤失。
The system is characterized by controlling acid liquid loss and further solves the problem of acid liquid loss during acidizing treatment.
可以通过几种方法控制泥浆滤失，其中一种方法是在泥浆中加入降滤失材料。
Control of fluid loss for a mud is achieved by several means, one of which is by addition of fluid-loss-control materials to the mud system.
瓶颈裂缝可引起井产能急剧下降，压裂液滤失也对井动态有一定的负面影响。
The results indict that choked fracture and leak off of fracture fluid had a negative effect on well productivity.
通过评价实验，考察了压裂液冻胶在低渗透气藏微裂缝储层中的降滤失性能。
The fluid loss reducing capacity of the gel was investigated in the microcrack reservoirs of the low permeability gas reservoir through evaluation tests.
为适合小井眼、小间隙井的固井要求，研究了复合塑性降滤失剂PT—2体系。
To meet the requirements of well cementing fors mall borehole and small annular space, the composite plastic fluid loss additive PT-2 was studied.
防卡降滤失剂PPL是以改性纤维素和多种表面活性剂为原料制得的乳状胶液。
PPL is a viscous emulsion prepared with a modified cellulose and several surfactants.
在提粘、提切的情况下，对滤失量影响较少，能较好地满足快速安全钻井的要求。
It has less effect on the filter loss in increasing viscosity and shear, thus meeting the demands of fast and safe drilling relatively well. 1.
酸蚀蚓孔扩展机理研究和考虑酸蚀蚓孔滤失的酸压计算模型研究则显得尤为重要。
Therefore, the acid wormhole propagation mechanism study and the novel calculation model for the acid leak-off in the acid fracturing is more important.
泡沫酸化用于碳酸盐储层，因为它与正常酸相比反应速度较慢而且防滤失性能较好。
Foam acidizing is used on carbonate reservoirs, because it is more retarded and has better fluid-loss control than normal acid.
酸蚀蚓孔滤失量与排量、酸液粘度、酸液浓度、注酸时间以及储层物性有密切关系。
The acid wormhole leak-off volume is concerned with the pumping rate, the acid viscosity, the acid concentration, acid injection time and the formation physical property.
富林洼陷前期的压裂试油工艺，由于天然裂缝较发育，压裂液滤失大，压裂效果不理想。
Because there are many natural fractures in Fulin Sag and the fracture liquids seriously lose, the fracturing effect is not ideal by using the fracturing and oil testing technology.
现有的压裂液滤失模型是针对均质储层而建立的，不能用于裂缝性储层压裂液的滤失计算。
The existing models of fracturing fluid leak-off are based on the homogenous reservoirs, and cannot be used to calculate the fracturing fluid leak-off for fractured reservoirs.
通过引入与时间相关的滤失系数的概念，建立了基于动滤失实验的多参数的滤失计算新模型。
Introducing the leakoff coefficient related with time, a new calculating model with multi parameters based on the dynamic fluid leakoff experiment is established.
酸滤失是制约酸蚀缝长延伸的重要因素之一，滤失控制是深穿透酸压工艺成功与否的关键所在。
Acid filtration is one of the major factors that restrict the growth of acid etched fractures and filtration control is the key to deep penetrating acid fracturing technology.
酸液向地层的滤失参数，是压裂酸化设计时确定裂缝几何尺寸及裂缝闭合时间最关键的参数之一。
Filtrateloss parameter of acidizing fluid is one of the key parameters to determine fracture geometry and the time of closed fracture in fracturing and acidizing design.
用动态滤失实验研究了压裂液的滤失行为，滤饼的性质，滤饼对岩心渗透率的伤害及其解除方法。
The filter action, the feature of filter cake, the damage of core permeability effected by cake and the solving method are researched by the way of dynamic filter experiment.
实验结果表明，一次交联聚合物弱凝胶具有剪切稀释的流变特征，耐剪切，注入性好，滤失量低；
The experiment results showed that preformed weak gel had many characteristics such as shear dilute rheological characteristic, anti-shear, easy injection and low filtration;
实验结果表明，一次交联聚合物弱凝胶具有剪切稀释的流变特征，耐剪切，注入性好，滤失量低；
The experiment results showed that preformed weak gel had many characteristics such as shear dilute rheological characteristic, anti-shear, easy injection and low filtration;
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