First, classification of
oilfield screens:
1. Slotted screens
2. Perforated screens
3. Wire-wound screens
4. Bridge screens
5. Composite screens
Second, the current application of laser-cut oilfield screens:
In oilfield drilling and production operations, oilfield screens are important equipment, often used for early well completion or sand control in oil production. Currently, the most commonly used oilfield screen is the wire-wound screen. This type of oilfield screen is manufactured by winding steel wire of a certain cross-section around a metal liner evenly distributed around the screen rod or with openings, welding it securely, and leaving certain gaps as screen holes. Although this manufacturing method has been widely used by numerous manufacturers in China, this type of oil screen has some problems when running into wells, especially when passing through bends in highly deviated or horizontal wells under high pressure. It inevitably collides, is squeezed, and rubs against the wellbore or casing, easily causing tangled threads, damage to the oil screen, or deformation of the slots. This leads to reduced or ineffective well completion quality and sand control. To address this drawback of wire-wound screens, slotted screens integrating the pipe and slot have emerged. Due to their superior performance and low cost, slotted screens have received significant attention from major oilfields and have been widely adopted since their inception. The emergence of slotted screens has provided the necessary material conditions for the development of horizontal wells and sidetracking wells, as well as for the extraction of oil from high-sand reservoirs.