Double-layer lined screening pipe The double-layer lined screening pipe is composed of a base pipe of API standard, a double-layer high precision wedge wire filter pipe and lined filter material in between. pozos inclinados y pozos direccionales: 1.High-precision screening gap can effectively control sand and act as a protective medium. 2.The use of double-layer lined screening pipe can reduce diameter of drilling hole, save drilling time, and reduce drilling cost. 3. The use of double-layer lined screening pipe can reduce the workload of operators, and improve the success rate of drilling. 4.Filter material can be [...]