Deployment of underground sensors in casing

摘要

The present invention discloses a subsurface formation fluids monitoring system integrated on a casing (100) or tubing sub having an inner (11) and an outer (12) surface and defining an internal cavity (14), comprising a sensor (24) mounted on the outer surface; data communication means (21A) for providing wireless communication between an interrogating tool (30) located in the internal cavity (14) and the sensor, these data communication means being inserted between the inner (11) and the outer (12) surface; and power communication means for providing wireless power supply to the sensor, these power communication means (21B) being inserted between the inner and the outer surface. The invention further discloses a method of completing a well in a subsurface formation comprising the step of installing the casing or tubing sub of the present invention. The invention further discloses a method of monitoring subsurface formations with the casing or tubing sub of the present invention.