Wireless communication using well casing

Details Wireless communication using well casing Wireless communication using well casing

E - Fixed Constructions

21

B

E21B 47/12 (2006.01) E21B 47/16 (2006.01) H04B 5/00 (2006.01)

Patent

CA 2401723

A petroleum well having a borehole extending into a formation is provided. A piping structure is positioned within the borehole, and an induction choke is positioned around the piping structure downhole. A communication system is provided along the piping structure between a surface of the well and the induction choke. A downhole module is positioned on an exterior surface of the piping structure and is configured to measure characteristics of the formation. The formation characteristics, such as pressure and resistivity, are communicated to the surface of the well along the piping structure.

La présente invention concerne un puits de pétrole dont le trou de forage est situé dans une formation. On positionne une structure de tubage dans ce trou de forage et on positionne une duse d'induction au fond du trou autour de cette structure. Un système de communication est prévu le long de cette structure entre une surface du puits et cette duse d'induction. On positionne un module de fond sur une surface extérieure de la structure de tubage et on l'agence de façon à mesurer des caractéristiques de la formation. Ces caractéristiques de formation, telles que la pression et la résistivité, sont communiquées à la surface du puits le long de cette structure de tubage.

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