Sand sieve tube is suitable for deep good mining oil, gas sand sieve tube, has a pipe wall with holes, both ends set tapered thread inner layer tube and open with a longitudinal narrow outer tube, two clamps between the tubes with metal screen, the screen joint protruding in the screen joint and pipe fixed welding joint, on the outer layer tube is equipped with longitudinal long hole hoop.

The sand-proof sieve pipe includes the inner pipe with dense holes, the screen on the pipe, and the protective pipe with dense holes. The characteristics are: both ends of the inner pipe are provided with tamper threads, the inner and outer layers with longitudinal narrow seams, and the pipe hoop with a longitudinal long hole is provided at both ends of the protective pipe.

With the inner layer base pipe support, the timely external filter pipe local deformation, the gap will not increase, and the sand prevention performance is more reliable. Suitable for a relatively harsh use environment. The gap of the outer sieve tube is uniform and the error is 0.05mm, which can effectively play a sand prevention role. Sieve tube gap density due to other sieve tubes, the flow resistance is reduced, greatly increasing the oil and gas production. The pipe diameter is relatively thin, which reduces the difficulty of drilling construction. The continuous V-type structure reduces the speed of water infiltration and reduces the pressure on the pipe and equipment. The base pipe material is API standard J55, K55, N80, etc. The outer sieve pipe is stainless steel 304, and other materials can also be used according to customer requirements.

The sand-proof screening pipe of Cangzhou Shenlong pipe consists of a standard base pipe and a high-precision filter pipe. Can be applicable to environmental kilometer deep Wells, oil Wells, geothermal Wells, and construction conditions of harsh formations.