Matrix temperature production logging tool

Abstract

A matrix production logging tool for measuring the temperature of produced fluids in a wellbore. Accurate production allocation to the pathways between the oil/gas well and the reservoir provides required data for the economic optimization of the techniques and procedures used to complete future wells. The low maintenance tool provides precise upstream, downstream and inflow temperature measurements of produced fluids within the wellbore.

1 . A logging tool for use to determine temperature of produced fluid flowing into or within a wellbore comprising:
 a. a core structure;   b. an arm extendibly and pivotally mounted to the core structure, the arm is extended away from the core structure and is near the inner surface of the wellbore, wherein the arm pivots in one plane relative to the core structure;   c. a data transfer device connected to the core structure for receiving, processing and storing data; and   d. at least one temperature sensor attached to the arm, wherein the temperature sensor is located at a tip of the arm, wherein when the arm is extended away from the core structure the temperature sensor is at or near the inner surface of the wellbore.   
     
     
         2 . The logging tool according to  claim 1 , wherein the temperature sensor is selected from a group consisting of: resistive temperature sensing devices, thermocouples, thermistors, infrared, pressure of known encased fluid, laser or laser light within fiber optics. 
     
     
         3 . The logging tool according to  claim 1 , wherein the logging tool includes a plurality of arms extendibly and pivotally mounted to the core structure. 
     
     
         4 . The logging tool according to  claim 3 , wherein the plurality of arms include at least one temperature sensor. 
     
     
         5 . The logging tool according to  claim 3 , wherein each arm includes a plurality of temperature sensors. 
     
     
         6 . The logging tool according to  claim 1 , wherein the arm includes a plurality of temperature sensors. 
     
     
         7 . The logging tool according to  claim 1 , wherein the data transfer device transfers data from the wellbore to the surface. 
     
     
         8 . A logging tool for use to determine temperature of produced fluid flowing into or within a wellbore comprising:
 a. a core structure;   b. a plurality of arms extendibly and pivotally mounted to the core structure, at least one arm is extended away from the core structure and is near the inner surface of the wellbore, wherein each arm pivots in one plane relative to the core structure;   c. a data transfer device connected to the core structure for receiving, processing and storing data; and   d. at least one temperature sensor attached to each arm, wherein the temperature sensor is located at a tip the arm, wherein when the arm is extended away from the core structure the temperature sensor is at or near the inner surface of the wellbore.   
     
     
         9 . The logging tool according to  claim 8 , wherein the temperature sensor is selected from a group consisting of: resistive temperature sensing devices, thermocouples, thermistors, infrared, pressure of known encased fluid, laser or laser light within fiber optics. 
     
     
         10 . The logging tool according to  claim 8 , wherein each arm includes a plurality of temperature sensors. 
     
     
         11 . The logging tool according to  claim 8 , wherein the data transfer device transfers data from the wellbore to the surface.