Drill bit system

Abstract

An example drill bit is configured to operate within a wellbore of a hydrocarbon-bearing rock formation. The drill bit includes a drill bit body including at least one leg. The drill bit may include at least one roller cone rotatably mounted on the drill bit body. The roller cone includes a plurality of cutting elements for abrading or crushing rock. The drill bit includes at least one bearing mounted between a surface of the drill bit body and the at least one roller cone to facilitate rotation of the at least one roller cone. The drill bit system includes a lubrication system to reduce friction between moving parts of the drill bit. The drill bit system includes at least one wear sensor associated with the drill bit to sense physical wear on the drill bit.

What is claimed is: 
     
         1 . A drill bit system comprising:
 a drill bit comprising a drill bit body, the drill bit body comprising at least one leg that is connectable to a drill string;   at least one roller cone connected to the drill bit body, the at least one roller cone comprising cutting elements;   at least one bearing mounted between a surface of the drill bit body and the at least one roller cone;   a lubrication system to reduce friction between moving parts of the drill bit; and   at least one wear sensor associated with the drill bit to sense physical wear on the drill bit.   
     
     
         2 . The drill bit system of  claim 1 , comprising at least one lubrication sensor to sense a presence of lubricant in a lubricant reservoir. 
     
     
         3 . The drill bit system of  claim 1 , where the at least one wear sensor is an erosion sensor to sense a reduction of drill bit material. 
     
     
         4 . The drill bit system of  claim 1 , where the at least one wear sensor is fluid sensor to sense a presence of wellbore fluid at a drill bit surface. 
     
     
         5 . The drill bit system of  claim 1 , where the at least one wear sensor is mounted in, or on, the at least one leg of the drill bit. 
     
     
         6 . The drill bit system of  claim 1 , where the at least one wear sensor is mounted in or on at least one of the plurality of cutting elements of the at least one roller cone. 
     
     
         7 . The drill bit system of  claim 1 , where the at least one sensor is mounted in, or on, a gauge protector of the at least one roller cone. 
     
     
         8 . The drill bit system of  claim 1 , wherein the at least one sensor comprises at least two sensors, where the at least two sensors comprise at least a first wear sensor and a second wear sensor to sense physical wear on the drill bit;
 where the first wear sensor is mounted in the drill bit at a first distance from a surface of the drill bit, and the second wear sensor is mounted in the drill bit at a second distance from a surface of the drill bit, where the second distance is greater than the first distance.   
     
     
         9 . The drill bit system of  claim 8 , where the at least two sensors comprise a third wear sensor to sense physical wear on the drill bit, where the third wear sensor is mounted in the drill bit at a third distance from a surface of the drill bit, where the third distance is greater than the second distance. 
     
     
         10 . The drill bit system of  claim 1 , further comprising at least one processor, where the at least one wear sensor is in communication with the at least one processor to provide sensing data to the at least one processor, and where the at least one processor is configured to process the sensing data to display the data on a user interface. 
     
     
         11 . The drill bit system of  claim 1 , where the at least one sensor is connected to an intermediary device through a first electrical connection, and the intermediary device is connected to the primary processor through a second electrical connection. 
     
     
         12 . The drill bit system of  claim 11 , where the first electrical connection and the second electrical connection include wireless connections. 
     
     
         13 . A drill bit system comprising:
 a drill bit comprising a drill bit body that is connectable to a drill string, the drill bit body comprising at least one blade, the at least one blade comprising cutting elements; and   at least one wear sensor associated with the drill bit to sense physical wear on the drill bit.   
     
     
         14 . A drill bit system comprising:
 a drill bit comprising a drill bit body that is connectable to a drill string, the drill bit body comprising at least one blade, the at least one blade comprising cutting elements;   at least one roller cone connected to the drill bit body, the at least one roller cone comprising cutting elements;   at least one bearing between a surface of the drill bit body and the at least one roller cone;   a lubrication system to reduce friction between moving parts of the drill bit; and   at least one wear sensor mounted associated with the drill bit to sense physical wear on the drill bit.