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- Suitable for coring in medium hard formation with abrasiveness. Core recovery rate is high. 适用于带研磨性的中硬地层取芯，取芯收获率高。
- Suitable for coring in very hard formation with abrasiveness. Core recovery rate is high. 适用于高等硬度及研磨性的地层取芯，取芯收获率高。
- The experiment shows the technique possessing high core recovery rate and quick drilling speed. 试验表明,该技术方法具有岩芯(样)采取率高、钻进速度快的特点。
- coring recovery rate 岩心采取率
- Face discharge watercourse design is adopted in order to reduce core erosion by mud for increased rate of core recovery. 采用面泻式水道设计，减小泥浆对岩芯侵蚀，取芯收获率高；
- The average recovery rate is 98% to add tetramine into the samples. 样品加标平均回收率为98%25。
- Results:every group bacetrium recovery rate:ou higher than70%. 结果:各组菌回收率均高于70%25。
- The mean recovery rate was 103% and the CV was 4.3%. 平均回收率为103%25;变异系数为4.;3%25。
- The recovery rate of the treatment with azithromycin was 70%. 阿奇黴素治愈率94.;44%25，红毒素治愈率70%25。
- Higher core recovery is assisted in coring operations when this kind of bit is used for hole enlargement. 加深井钻进，用双心钻头可增大环空间隙，提高固井质量。
- The average recovery rate of MgSO4 was 99.3% with RSD of 0.66%. 硫酸镁的含量测定，中药成分无干扰，平均回收率为99.;3%25，RSD=0
- The average recovery rate of MgSO4 was 99.3 % with RSD of 0.66 %. 硫酸镁的含量测定;中药成分无干扰;平均回收率为99.;3%25;RSD=0
- The new coring tool that made of glass fiber reinforced plastic is used to improve the coring recovery and integrity in the loose gravel formation in Liaohe Oilfield. 玻璃钢取心工具是专为提高辽河油田含砾石松散地层取心收获率和岩心完整性而研制的。
- Field test shows that it's very effective and reliable, and compares with the offset wells, the coring recovery improved by 22.51%, and its main performances are advanced at home. 现场试验表明;该工具具有结构新颖、设计科学、使用可靠和取心收获率高的特点;与邻井相比;取心收获率提高了22.;51%25。
- The coring tool is tripped in 26 times, with total coring footages of 205. 71m, recovered core of 168.29m and the average core recovery of 81.81%, the highest in the block. 共下取心工具 26次，取心总进尺205.;71m，收获岩心168， 29m，平均收获率81
- That is, high core recovery and borehole wall stability would be mainly realized by new type fluidic coring tools and environmental protective drilling fluid system(Epm). 重点通过研制新型射流式取心钻具和环保型钻井液体系(EPM)来实现提高岩心采取率和孔壁稳定性的预期目标。
- Core recovery of deep broken limestone formation is very low due to the influence of its lithology, formation dip and tectonic earth stress. 深井灰岩破碎地层取心效果受地层岩性、地层倾角以及构造地应力对地层的挤压作用等因素影响较大,采用常规取心工具收获率低(邻井当深3井取心收获率仅有23%25)。
- The iron grade can be 54.16% and the recovery rate 92.46% after reductio... 经过还原处理的样品获得了较好的指标;铁品位54.;16%25;回收率92
- The applied effect showed that this way can improve cyaniding recovery rate. 应用生产后,提高了氰化回收率;
- Result: the average recovery rate of Astragaloside IV reaches 97.6%, RSD=0.55%. 结果：黄芪甲等的平均回收率为97.;6%25，相对标准偏差RSD=0
