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.
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。
2
But the method of mixing anti freeze and pumping aid together into concrete is not advisable, and the scientific technology is using anti freezing pumping aid in concrete.
但采用双掺防冻剂和泵送剂的方法不可取，科学合理的方法是采用防冻泵送剂。
3
Testing matching ratio and quality controlling of anti-frozen massive pumping concrete C30P12F100 is introduced with the construction application.