Laser cut slot pipe

• Laser slot pipe

  Casing and tubing of API standard, with High overall strength.

  The edge of the slot is vertical, smooth, without burrs, and the slot is uniformity.

  The slot can be longitudinal and transverse, the section of the slot can be parallel and trapezoidal types, with a wide open area.

  The slots can be straight or keystone shaped. The keystone slot is narrower on the outside surface of the pipe than on the inside. Slots formed in this way have an inverted “V” cross-sectional area and are less prone to plugging because any particle passing through the slot at the outside diameter (OD) of the pipe will continue to flow through, rather than lodging within the slot. Slotted liners have smaller inflow areas and experience higher pressure drops during production. Slotted liners also plug more readily than screens; they are used where well productivity is small and economics cannot support the use of screens.

  

• The single-slot staggered, longitudinal pattern is generally preferred because the strength of the unslotted pipe is preserved. The staggered pattern also gives a more uniform distribution of slots over the surface area of the pipe. The single-slot staggered pattern is slotted with an even number of rows around the pipe with a typical 6-in. longitudinal spacing of slot rows.

  All slotted joints are deburred internally, cleaned and drift tested according to API standards. Every slot is visually inspected and cleaned of burr material. All threads and couplings are thoroughly cleaned and lubricated.

  

Specification of the Laser Slotted Pipe (customized specification supplied available)