Drilling system

Abstract

A system is provided which includes a bottomhole assembly, a cable assembly, and a controller. The bottomhole assembly is disposed in a wellbore traversing a subterranean formation from a surface of the earth, and includes a drill tool. The cable assembly includes a fiber optic line coupled with the bottomhole assembly. The fiber optic line has a length that traverses a length of the wellbore from the bottomhole assembly to the surface. The fiber optic line is a distributed sensor and measures one or more downhole parameters along the length of the fiber optic line during the drilling of the wellbore. The controller is coupled with the cable assembly, and receives data from the fiber optic line during the drilling of the wellbore by the drill tool.

What is claimed is: 
     
         1 . A system comprising:
 a bottomhole assembly disposed in a wellbore traversing a subterranean formation from a surface of the earth, the bottomhole assembly having a drill tool;   a cable assembly including a fiber optic line coupled with the bottomhole assembly, the fiber optic line having a length that traverses a length of the wellbore from the bottomhole assembly to the surface, the fiber optic line being a distributed sensor and measuring one or more downhole parameters along the length of the fiber optic line during the drilling of the wellbore; and   a controller coupled with the cable assembly, the controller receiving data from the fiber optic line during the drilling of the wellbore by the drill tool.   
     
     
         2 . The system of  claim 1 , wherein the cable assembly includes a conductor line transmitting power to the bottomhole assembly. 
     
     
         3 . The system of  claim 1 , wherein the bottomhole assembly includes a battery providing power to the bottomhole assembly. 
     
     
         4 . The system of  claim 1 , further comprising a conduit coupled with the bottomhole assembly. 
     
     
         5 . The system of  claim 4 , wherein the cable assembly is disposed within an annulus of the conduit. 
     
     
         6 . The system of  claim 4 , wherein the cable assembly is coupled with the conduit. 
     
     
         7 . The system of  claim 4 , wherein the cable assembly is external to the conduit. 
     
     
         8 . The system of  claim 1 , wherein the fiber optic line is one or more of the following: a distributed temperature sensor, a distributed acoustic sensor, and a distributed pressure sensor; and wherein the one or more downhole parameters includes temperature, acoustic signals, and/or pressure. 
     
     
         9 . The system of  claim 1 , wherein the controller receives the data from the fiber optic line and adjusts the drilling of the wellbore based on the data. 
     
     
         10 . The system of  claim 1 , wherein the bottomhole assembly includes one or more sensors, and the data includes measurements from the one or more sensors. 
     
     
         11 . A drilling device comprising:
 a bottomhole assembly having a drill tool operable to drill a wellbore;   a cable assembly including a fiber optic line coupled with the bottomhole assembly, the fiber optic line having a length and being a distributed sensor and operable to measure one or more downhole parameters along the length of the fiber optic line during drilling of the wellbore; and   a controller coupled with the cable assembly, the controller operable to receive data from the fiber optic line during the drilling of the wellbore.   
     
     
         12 . The drilling device of  claim 11 , wherein the cable assembly includes a conductor line operable to transmit power to the bottomhole assembly. 
     
     
         13 . The drilling device of  claim 11 , wherein the bottomhole assembly includes a battery operable to provide power to the bottomhole assembly. 
     
     
         14 . The drilling device of  claim 11 , wherein the fiber optic line is one or more of the following: a distributed temperature sensor, a distributed acoustic sensor, and a distributed pressure sensor; and wherein the one or more downhole parameters includes temperature, acoustic signals, and/or pressure. 
     
     
         15 . The drilling device of  claim 11 , wherein the controller receives the data from the fiber optic line and is operable to adjust the drilling of the wellbore based on the data. 
     
     
         16 . The drilling device of  claim 11 , wherein the bottomhole assembly includes one or more sensors, and the data includes measurements from the one or more sensors. 
     
     
         17 . A method comprising:
 drilling, by a bottomhole assembly having a drill tool, a wellbore in a formation;   measuring, by a fiber optic line having a length and coupled with the bottomhole assembly during the drilling, one or more downhole parameters along the length of the fiber optic line; and   transmitting, to a controller during the drilling, data from the fiber optic line,   wherein the fiber optic line is a distributed sensor and the length of the fiber optic line traverses the length of the wellbore from the bottomhole assembly to the surface.   
     
     
         18 . The method of  claim 17 , further comprising:
 adjusting, by the controller, the drilling of the wellbore based on the data from the fiber optic line.   
     
     
         19 . The method of  claim 17 , wherein the fiber optic line is one or more of the following: a distributed temperature sensor, a distributed acoustic sensor, and a distributed pressure sensor; and wherein the one or more downhole parameters includes temperature, acoustic signals, and/or pressure. 
     
     
         20 . The method of  claim 17 , wherein the bottomhole assembly includes one or more sensors, and the data includes measurements from the one or more sensors.