N80 7 Inch Slotted Seamless Casing

N80 7" slotted seamless casing
  Steel grade: N80
  Pipe size: 7"
  Slotted: 1.65"x0.020", 240 slots per ft (3% slotted area)
  Length: R1, R2, R3
  Thread type:  BC, SC, LC etc.
  1. Slotted casing pipe is using professional processing equipment to cut a certain size of seam on the casing to block sand from filtering oil in the oil well.
  2. Slotted casing pipe is mainly used for sand prevention filtering in petroleum wells, especially widely used in inclined wells and horizontal wells. According to the geology and sand layers of the oil well, the steel grade and the slot size and number, are also different.
  3. Advantages of Slotted casing pipe:
  1) .The slotted pipe is processed by J55 or N80 petroleum casing body, which has high strength and is not easy to deform.
  2). The vertical edge of the mechanical cutting seam is good, the cutting edge is smooth, without burrs, and the cutting seam is even.
  3). Large flow area, 7 ", 23 pound / ft slotted pipe 240 slots/ft, flow area 72 per cubic centimeter, which is larger than that of the same size tubing. It is good for liquid flow.
  4). Its advantages are more obvious in inclined and horizontal wells.
  5). Anticorrosive treatment is carried out as a whole to form a dense protective layer on each surface of the screen pipe, which improves the corrosion resistance and wear resistance of the screen pipe, and can effectively extend the life of its underground work.
  6) .Suitable for sand control in sand production wells with a particle diameter greater than 0.3mm
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