全部

1·The experiment shows the technique possessing high core recovery rate and...

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。

2·The experiment shows the technique possessing high core recovery rate and quick…

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。

3·It is practically proved that frequency distribution of drill-core recovery is partial.

实践证明，岩心钻探取心率的频率分布是偏态的。

4·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。

5·The bottom of core recovery which means water will get back to the bottom core in about forty seconds, the core is now uncovered.

核心回收率的底部,意思是水会回到核心的地步,在40秒之内，核心现在已经没有覆盖的了。

6·Cataclasite series; Rate of core recovery; Single Rotary and Double Tube core Barrel, Structure of drilling tool; drilling technology.

碎裂岩系；取芯率；双管单动钻具；钻具造型；钻探工艺。

7·Glass steel coring tool is specifically developed for improving the core recovery of conglomeratic weak formation and the core integrality 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。

8·The problems of low drilling efficiency and low core recovery due to borehole collapse were solved with pulling in casing while drilling through using combined BHA with casing.

采用组合钻具进行跟管钻进，通过随钻跟入的套管保护孔壁，解决因钻孔垮塌导致钻探效率和岩心采取率低等技术难题。

9·The swivel-tube barrel can effectively increase core recovery rato. suitable for drilling in formations in which oblique hole comes easy. It is effective to assure hole quality.

单动双层岩芯管钻具结构简单、操作方便、同轴度好、适用寿命长，能有效地提高岩、矿芯的完整度。

10·Field test showed that this tool is featured by novel structure, scientific design, reliable use and high core recovery. Compared with the adjacent Wells, its core recovery increased by 22.5 %.

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22.5%。