Preliminary Studies To Identify Oil Well Perforations With Radar Installed Outside The Well

It is important to know if oil well perforations are open or closed in the well. With notice the closure of the oil well perforations, chemical or ultrasonic methods can be used to rinse the well to extend the life of the well. In recent years, the authors have suggested using radar to detect these perforations. To do this, they have to lower the radar to the bottom of the well and near the perforations. This works for wells with depths of several kilometers and temperatures of 350 °C and pressure of 600MPa will be very difficult and expensive. In this article, we have investigated whether these perforations can be detected without sending radar into the well? Our calculations show that it is possible to identify holes with a diameter of 5 to 25 mm, up to a depth of 1,500 meters with modern technology, but more advanced methods are needed for further depths.