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浅气层具有埋藏浅、压实程度低、胶结疏松、生产时容易出砂的特点。针对疏松浅砂岩气层所固有的特性，综合分析了各种防砂完井方式（割缝衬管，绕丝筛管，裸眼井下砾石充填，裸眼预充填砾石双层绕丝筛管，管内井下砾石充填，管内下绕丝筛管，管内下预充填砾石双层绕丝筛管，衬管或套管外化学固砂等）的优缺点及其所适用的条件。在此基础上，分析了各种防砂完井方式在完井过程中可能出现的气层损害及其对产能的影响。提出了在选择疏松浅砂岩气层防砂完井方式时需要考虑的各种因素和参数，以及防砂完井方式选择的基本原则。最后提出了疏松浅砂岩气层防砂完井方式选择的流程图，这对指导该类气层的完井工程设计具有非常重要的意义。

THE SELECTION OF SAND CONTROL WELL COMPLETION WAYS IN UNCONSOLIDATED SHALLOW GAS FORMATIONS

Shallow gas formations are of the characteristics of shallow burial depth,low compaction degree,unconsolidated cementation,easy sand producing etc.Aimed at the characteristics,the advantages,disadvantages and the applicable conditions of the various well completion ways (slotted liner,wirewrapped screen,bare downhole gravel pack,barefoot gravel pre packing bilayer wirewrapped screen,downhole gravel pre packing in screen piple,wirewrapped screen in pipe,chemical solid sanding etc)are comprehensively analysed.Then,the gas formation damages possibly comming out in well completion by the various ways are also analysed.The various factors and parameters,theirs influences on productivities,the basic principles and flow diagrams considered when selecting the ways are proposed out.