High-density punch seam filter sleeve, punch seam can be along the axis direction of the pipe body, using straight seam welding; unique punch seam spiral distribution, formed by spiral welding, significantly improves the strength of the filter sleeve. In the local external extrusion, the pressure part is reduced or closed under the action of external force, to ensure the reliability of sand prevention. Using the precision punching technology, the punching opening of the stainless steel punching filter sleeve is on the side to reduce the direct punching effect of the sand layer hedge seam sieve tube. The punch gap processing range is between 0.20mm-0.7mm. The requirement of the uniformity of the seam clearance can be within the processing error range of 0.015mm to ensure filtration accuracy. Using high-density punching technology, the effective opening joint length is 3-5 times that of ordinary slit pipe and 2-3 times that of ordinary slit sieve pipe. The central tube has unique spiral cloth holes
The central pipe of the high-density punching seam sieve pipe adopts standard oil and casing, and the central pipe adopts the form of spiral drilling, which reduces the opening area of the cross-section of the pipe body. On the basis of ensuring the overall overflow area of the pipe body, the strength of the central pipe is retained to the maximum extent. The formation sand is blocked outside the seam sieve pipe, and the oil, gas, or water in the formation passes through the seam gap, and then enters the sieve pipe through the drilling hole. The way to prevent sand. Excellent anti-corrosion performance center pipe using API standard sleeve or oil pipe, high-density seam filter sleeve using 304 stainless steel material. For special requirements containing H2S, CO2, high-, Cl-wells. The sieve tube is resistant to acid, alkali, and salt corrosion.
High-density punch sieve pipe can be used for all kinds of oil, gas, and well straight well, inclined well horizontal well, and other casing completion well, which can be used alone as an anti-sand pipe column or with filling.
Cangzhou Shenlong pipe has mature production equipment and technology, strong technical force, complete testing equipment, quality assurance system, through the ISO9001:2000 quality management system and American petroleum association API-5CT standard certification, can produce a variety of steel grades, a variety of thread pipe, sleeve, tablet sleeve, hoop and short, and several wire sieve production lines can process 60.30mm~508mm different specifications and different geological requirements of sand pipe. Welcome friends to consult choose and buy!