采用CYBS系列动筒式防砂卡抽油泵，在文南油田不同井况的4口井中进行了防砂卡抽泥浆工艺的生产试验。
CYBS series anti sand travelling barrel rod pumps were used on 4 Wells in Wennan Oilfield to test their performance of sand control and slush pumping.
在风门中间，只见亭南煤业公司通防队四五名员工忙的不亦乐乎。
In the middle of throttle, I saw booths pass defense team in Southern Coal Company 45 employees busy whole day.
通过对川南气田水水质、结垢成因、结垢趋势的研究，提出采用密闭排水防垢方法。
The antiscaling method of sealed drainage is proposed out by studying the gas field water components, scaling origin and scaling tendency.
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