Patent ID: 9051823
Filing Date: 2015-06-09
Classification: E21B

Abstract:
1. A method of measuring a conductive fluid flow, the method comprising: traversing a casing with a tool, the tool comprising a tool body and a quadrilateral arm assembly attached to the tool body, the arm assembly having a sensor pad comprising an electromagnetic sensor, wherein a sensor pad long axis is parallel to a tool body long axis, and wherein the quadrilateral arm assembly has a first rotatable joint adjacent the tool body and forming a first inner acute angle, a second rotatable joint disposed adjacent and the sensor opposite the first joint and forming a second inner acute angle, a third rotatable joint adjacent the tool body and forming a first inner obtuse angle, and a fourth rotatable joint disposed adjacent the sensor pad and opposite the third joint and forming a second inner obtuse angle; azimuthally rotating the sensor pad along an inner circumference of the casing; and measuring a speed and direction of radial conductive fluid flow through a wall of the casing with an electromagnetic sensor disposed in the sensor pad.