The main function of oil sand control screen is sand control. The steel level and type of sand control screen used in oil Wells are different in different geological environments (different lithology).
Sand control screen is a kind of suitable for deep well drilling for oil and gas in the sand control screen, it has a wall with full set taper thread on both ends of the inner pipe and a vertical slit of the outer tube, the tube is placed between the metal mesh, the mesh of the joint edge in protecting tube bulge of sieve joints and with solid protection pipe welding fusion seam, A pipe hoop with a long longitudinal hole is arranged on the outer guard pipe.
The sand control screen comprises an inner tube with dense holes, the screen on the tube and the guard with dense holes on the screen, which is characterized as: the two ends of the inner tube are provided with taper threads, the screen for the inner and outer fine mesh and coarse mesh two layers, the guard tube is provided with a longitudinal narrow seam; Two layers of thick and fine mesh screen around the inner tube, the joint edge of the pipe guard opening protrudes to form a screen joint and a welding fusion joint with the pipe guard solid connection; A pipe hoop with a longitudinal long hole is arranged at both ends of the guard pipe.
With the inner base pipe support, even if the external filter pipe is partially deformed, the gap will not increase, and the sand control performance is more reliable. Suitable for harsh use environment. The gap of the outer screen is uniform, and the error is small to 0.05mm, which can effectively play the role of sand control. Screen gap density reduces flow resistance due to other screens, greatly increasing oil and gas production. The pipe diameter is smaller, which reduces the difficulty of drilling. The continuous V-shaped structure reduces the infiltration rate of water and reduces the pressure on the pipe body and equipment. The base pipe material is API standard J55, K55, N80, etc., the outer screen tube is stainless steel 304, and other materials can be used according to customer requirements.
Cangzhou Shenlong sand control screen is composed of standard base pipe and high precision filter pipe. It can be applied to the environment of kilometer-deep Wells, oil Wells, geothermal Wells, and strata with harsh construction conditions.
