... sand control cementing straddle tool 防砂及挤水泥对口皮碗工具 sand control completion 防砂完井 sand control equipment 防砂设备 ...
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介绍了膨胀筛管的结构、防砂机理和采用膨胀管防砂完井的优缺点。
This paper introduces the advantages and disadvantages of using expanding screen, the structure of expanding screen and the mechanisms of sand control.
它采用高孔密大孔径深穿透射孔弹和大压差抽吸炮眼清洗技术，不仅能提高油井产能，解除近井带污染，还可以改善防砂完井效果。
The technology uses deep penetration perforation charge with high perforation density and large perforation diameter and surging perforation with greater pressure differential.
研究表明，洞穴完井是一种很好的增产控砂方式，其推广使用必将为天然气的防、控砂提供一条有效途径。
Cavity completion well is good method in increasing production and controlling sand, and it will become an effective method to control sand through research.
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