When fishing the string fish in sandproducer, string milling length should be optimized and a downhole string dynamic analysis model is established to calculate the length.
出砂井落鱼管柱打捞需要对管柱的套铣长度进行选择,针对这一问题建立了井下管柱受力分析计算模型。
2
Color concrete brick is a novel decorative brick, which is made by dealed efflorescent sand and ground. stone with color HEC consolation (C-HEC) and special producer equipment.