钻井过程中滤水管选用是否科学合理至关重要-Hebei cangtieHebei Cangtie Industrial Co., Ltd - Quality Perforated Grouting, Tunnel Roof Support & Sonic Logging Pipes

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钻井过程中滤水管选用是否科学合理至关重要
时间：2022-06-19浏览量：22
钻井过程中滤水管选用是否科学合理至关重要在同样的地质条件下要使井的出水量大、降深小、水质好、使用寿命长，滤水管选用是否科学合理至关重要。桥式滤水管缝隙1.滤水管要正对含水层。二者一旦错位，进水阻力要大很多，增加降深。为此在下管之前要进行物探测井，准确确定含水层部位。2.滤水管的开孔…

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