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1·The problems of gravel pack, cementing and perforation are dwelled upon in special.

特别对砾石充填、固井和射孔等方面的问题作了较详细的讨论。

2·A metal filter assembly used to support and retain the sand placed during gravel pack operations.

在砾石充填作业期间放置的为支承和挡住砂子所用的由金属制成的过滤装置。

3·The flow rate, perforation radius and shot density are the key parameters influencing the pressure drop across gravel pack.

分析结果还表明，油井产量以及射孔孔径和孔密度是影响砾石层压降的重要因素。

4·Step one is to grout with low grouting pressure to fill the gravel pack interval and blocked the channels which relieves the grouting pressure in the shallow surrounding rock.

“一步”低压注浆充填壁后散体状碎石充填层，堵塞浅部围岩泄压通道；

5·The minimum injection rate of gravel pack increases while increasing the diameter of perforation tune, the perforation density, the perforated thickness and the critical velocity.

射孔密度、射开厚度、孔眼直径及临界流速增加时，砾石充填最小排量也增加。

6·This complete downhole tool solution can be used in gravel or frac pack applications as well as any two-trip configuration, such as standalone screen type completions.

这种完井井下工具解决方案可被用于砾石充填或挤压充填完井，也可以用于其它任何需要两次下钻才能下入的完井方式，包括优质筛管完井等。

7·It is placed in the formation via a fracture, frac-pack, gravel-pack, or pre - packed screen system.

它通过裂缝或预填充筛管系统放置在地层中。