Perforated Casing 13CrL80 5 1/2" 17ppf LTC Pin x Box
Perforated Casing is an important equipment in oil drilling and production, which is often used for early completion or oil production sand control. At present, the most commonly used screen tube is wire wound screen tube. The manufacturing method of the screen tube is that the steel wire of a certain section is wound and welded on the metal lining tube evenly distributed on the surrounding screen rod or with holes, and the gap is reserved as the screen hole.
Although this manufacturing method has been used by many manufacturers in China, there are some problems in running the screen pipe. When the strong pressure passes through the curved section of highly deviated well or horizontal well, it will inevitably collide, squeeze and friction with the well wall or casing, which is prone to chaos, resulting in screen pipe damage or gap deformation, resulting in reduced or ineffective well completion quality and sand control effect, In view of this disadvantage of wire wound screen tube, slotted screen tube integrating tube and seam appears.
Due to the performance and low price of slotted pipe, it has been highly valued and widely used by major oil fields as soon as it appears. It can be seen that the emergence of slotted pipe provides material conditions for the development of horizontal well and side drilling and the oil production of high sand reservoir.
