MANUFACTURING OF SAND SCREENS

MANUFACTURING OF SAND SCREENS

A ROD-BASED WELL SCREEN IS FORMED IN PLACE ON A PERFORATED BASE PIPE (104) BY WRAPPING WIRE (109) AROUND THE BASE PIPE (104) AND A PLURALITY OF RODS (108) LOCATED AROUND THE OUTSIDE OF THE PIPE. THE WIRE (109) IS WELDED SEQUENTIALLY TO EACH INDIVIDUAL ROD (108) AS IT IS WRAPPED AROUND THE PIPE (104)...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: ROALDSNES, KJARTAN
Format: Patent
Sprache:eng
Schlagworte:
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:A ROD-BASED WELL SCREEN IS FORMED IN PLACE ON A PERFORATED BASE PIPE (104) BY WRAPPING WIRE (109) AROUND THE BASE PIPE (104) AND A PLURALITY OF RODS (108) LOCATED AROUND THE OUTSIDE OF THE PIPE. THE WIRE (109) IS WELDED SEQUENTIALLY TO EACH INDIVIDUAL ROD (108) AS IT IS WRAPPED AROUND THE PIPE (104). THE WELDING AND GROUND ELECTRODES ENGAGE THE WIRE (109) AND THE RODS (108) RESPECTIVELY. THE ROD ENGAGING GROUND ELECTRODE IS POSITIONED A SHORT DISTANCE AHEAD OF THE WIRE BEING WRAPPED AROUND THE RODS AND THE BASE PIPE (104). THE GROUND ELECTRODE INCLUDES A PLURALITY OF CONTACTS (204). EACH CONTACT (204) IS MOUNTED TO PIVOT TOWARD AND AWAY FROM A ROD. SPRINGS URGE EACH CONTACT TOWARD A ROD TO HOLD THE ROD AGAINST THE OUTSIDE SURFACE OF THE BASE PIPE (104) AND TO MAINTAIN GOOD ELECTRICAL CONTACT BETWEEN THE CONTACT (204) AND THE ROD (108). (FIG. 3A)