RDF泥饼是颗粒的主要来源，因此在砾石充填井中为了建立和保证井的最佳产能和吸水能力，通常都需要除掉RDF泥饼。
Since RDF filter-cakes are a primary source of particulates, their removal usually is necessary to establish and maintain optimum well productivity or injectivity in gravel-packed wells.
为确保砾石充填质量，对作业中的两口井进行砾石充填质量及其充填效果评价的试验。
For guaranteeing the gravel packing quality, the gravel packing quality test and packing effect evaluation were carried out in the two Wells under operation.
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。
The problems of gravel pack, cementing and perforation are dwelled upon in special.
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