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发明公开
CN105545259A 防砂管及去除防砂管表面颗粒物的方法 无效 - 撤回

防砂管及去除防砂管表面颗粒物的方法
摘要：
本发明提供一种防砂管及去除防砂管表面颗粒物的方法，防砂管包括基管、设置于基管外周的多个过滤芯以及套设于过滤芯外的防护罩，其中，所述多个过滤芯沿基管的径向均匀分布设置，在基管轴向上至少设置一排，相邻过滤芯之间设有间隙，且所述过滤芯的内腔与所述基管的内腔相通，所述过滤芯为横截面轮廓呈月牙形状的中空管状体，且其弯曲面朝向基管，本发明提供的防砂管，降低了去除过滤芯上累积的砂粒以及泥状物的难度。
摘要（英）：

The invention provides a sand control pipe and a method removing particles on the surface of same; the sand control pipe comprises a base pipe, a plurality of filter cores arranged on the periphery of the base pipe, and a protection shield sleeved outside the filtering cores; the filter cores are radially and uniformly arranged around the base pipe, and at least one row of the filter cores are arranged on the axial direction of the base pipe; a gap is formed between adjacent filter cores; the cavity of the filter core is connected with the cavity of the base pipe; the cross section of the filter core is a hollow tubular body in a crescent shape, and a bending surface faces the base pipe; the sand control pipe can reduce the difficulty of removing sand grains and mud accumulated on the filter cores.

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