Dual magnetic sensor actuation assembly

A wellbore servicing tool comprising:

• a housing comprising one or more ports and generally defining a flow passage;
• a first magnetic sensor and a second magnetic sensor disposed within the housing, wherein the first magnetic sensor is positioned up-hole of the second magnetic sensor;
• an electronic circuit coupled to the first magnetic sensor and the second magnetic sensor;
• and
• a memory coupled to the electronic circuit, wherein the memory comprises instructions that cause the electronic circuit to:
• detect a magnetic device within the housing;
• determine the flow direction of the magnetic device through the housing;
• and
• adjust a counter in response to the detection of the magnetic device and the determination of the flow direction of the magnetic device through the housing.

A wellbore servicing method comprising:

• positioning a tubular string comprising a well tool comprising a dual magnetic sensor actuation assembly (DMSAA) within a wellbore, wherein the well tool is configured to disallow a route of fluid communication between the exterior of the well tool and an axial flowbore of the well tool;
• introducing one or more magnetic devices to the axial flowbore of the well tool, wherein each of the magnetic devices transmits a magnetic signal;
• detecting the one or more magnetic devices;
• determining the flow direction of the one or more magnetic devices;
• adjusting a magnetic device counter in response to the detection and the flow direction of the magnetic devices;
• actuating the well tool in recognition of a predetermined quantity of predetermined magnetic signals traveling in a particular flow direction, wherein the well tool is reconfigured to allow a route of fluid communication between the exterior of the well tool and the axial flowbore of the well tool.