The formulas of the two gels and the core plugging capacity of the polymer gel are presented.
介绍了两种堵剂的配方及聚合物堵剂封堵岩心的能力。
Laboratory test shows that core plugging rate by using the agent is over 90%, recovered rate of permeability is over 85% after washing with water for a long period of time.
室内实验表明,该堵剂可使岩心堵塞率达到90%以上,用地层水长时间冲刷后,渗透率恢复值在85%以上。
The effect of surface wettability of porous media on the plugging properties of LPS was studied through the ground glass model, quartz sand-packed tube and artificial core plugging experiments.
采用毛玻璃模型、填充砂管和人造岩心封堵实验,研究了多孔介质的表面润湿性对交联聚合物溶液(LPS)封堵性能的影响。
At high speed, asphaltene plugging is more serious with increase of flow rate. The damage degree of asphaltene plugging is higher in low permeability core than in high one.
在较高流速下,随速度升高,沥青所造成的孔喉堵塞更加严重,在低渗岩心中沥青堵塞引起渗透率伤害程度大于高渗透岩心。
Some inaccuracy often exists in the evaluation of foam stability in porous media using glass vessel in laboratory experiment, so the validity time of foam plugging in homogeneous core was researched.
在室内实验中,用玻璃器皿等不能准确反映泡沫在岩心多孔介质中的稳定性,为此研究了泡沫在均质岩心中的泡沫封堵的有效期。
A core evaluating test is conducted on the selected plugging agent, and its dissolution and temporary plugging intensity are detected.
对所筛选出的暂堵剂进行了岩心评价试验,对暂堵剂的溶解性及暂堵强度进行了测定。
The injectivity, plugging performance and sweep efficiency of the gel system is evaluated through single and parallel core experiments.
通过单岩心和并联岩心实验对凝胶体系的注入性能、封堵性能和驱油效果进行了评价;
The migration behavior, plugging ability and profile control effects of gel particle in core were studied.
采用模拟实验方法研究了凝胶颗粒在岩心中的运移特性、封堵能力及其调剖效果。
The additional channel is gradually plugged by the plugging component along with the movement of the valve core;
随着所述阀芯的移动,所述封堵部件逐渐将所述附加通道封堵;
On the basis of the features of Ertan reservoir in Feixianguan TM, the paper researches the optimum seeking method of temporary plugging agent by using core flow experiment.
用岩心流动实验的方法,针对飞仙关鲕滩储层,从暂堵剂的堵塞性及酸化解堵性方面对暂堵剂优选进行了研究。
Rock core experiments indicate that the plugging agent has some outstanding characteristics, such as, high intensity, good salt resistance and heat steadiness and easiness of being plugging solved.
岩心实验表明,该堵剂具有强度高,抗盐性和热稳定性好,易解堵等显著特点。
It also has powerful core sealing capacity, drag coefficient was greater than 32, residual resistance factor was greater than 20 and plugging rate was greater than 95%.
具有较强的岩心封堵能力,阻力系数大于32,残余阻力系数大于20,封堵率大于95%。
It also has powerful core sealing capacity, drag coefficient was greater than 32, residual resistance factor was greater than 20 and plugging rate was greater than 95%.
具有较强的岩心封堵能力,阻力系数大于32,残余阻力系数大于20,封堵率大于95%。
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