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ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ

รหัส / code คำอธิบาย / code name Version
E21B0023120000 Tool diverters 1
E21B0023140000 for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated wells (by fluid pressure E21B0023080000; provision on well heads for introducing or removing cable-operated tools E21B0033072000, E21B0033076000) 1
E21B0025000000 Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors (core bits E21B0010020000; using explosives or projectiles in boreholes E21B0049040000; side-wall sampling or coring E21B0049060000) 1
E21B0025020000 the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe (retrievable drill bits E21B0010640000) 1
E21B0025040000 the core receiver having a core forming cutting edge or element, e.g. punch type core barrels 1
E21B0025060000 the core receiver having a flexible liner or inflatable retaining means 1
E21B0025080000 Coating, freezing, consolidating cores (E21B0025060000 takes precedence);;Recovering uncontaminated cores or cores at formation pressure 1
E21B0025100000 Formed core retaining or severing means (E21B0025060000, E21B0025080000 take precedence);; 1
E21B0025120000 of the sliding wedge type 1
E21B0025140000 mounted on pivot transverse to core axis 1
E21B0025160000 for obtaining oriented cores 1
E21B0025180000 the core receiver being specially adapted for operation under water 1
E21B0027000000 Containers for collecting or depositing substances in boreholes or wells, e.g. bailers for collecting mud or sand; Drill bits with means for collecting substances, e.g. valve drill bits 1
E21B0027020000 Dump bailers, i.e. containers for depositing substances, e.g. cement or acids 1
E21B0027040000 where the collecting or depositing means include helical conveying means 1
จำนวนรหัสข้อมูล 15 จาก 73902