Datacoil™ Downhole Logging System

Abstract

A logging tool for use within a work string within a wellbore. The logging tool includes one or more sensors which detect operational conditions within the wellbore and a processing and storage means for recording data relating to these conditions.

1 . A logging tool for use in connection with a work string within a wellbore, the logging tool comprising:
 a tool body having axial ends with connections for incorporation into the work string;   an axial flow passage disposed within the tool body;   one or more sensors for determining at least one wellbore condition relating to the operation of the work string and providing one or more data signals indicative of the at least one wellbore condition; and   a processing and storage means within the tool body for storage of data signals provided by the one or more sensors.   
     
     
         2 . The logging tool of  claim 1  wherein the one or more sensors comprise a strain sensor for determining axial loading upon a running string for the logging tool. 
     
     
         3 . The logging tool of  claim 1  wherein the one or more sensors comprise an impact sensor for determining impact force. 
     
     
         4 . The logging tool of  claim 1  wherein the one or more sensors comprise an inclination sensor. 
     
     
         5 . The logging tool of  claim 1  wherein the one or more sensors comprise a temperature sensor. 
     
     
         6 . The logging tool of  claim 1  wherein the one or more sensors comprise a pressure sensor. 
     
     
         7 . The logging tool of  claim 1  wherein the tool body comprises:
 a radially interior mandrel; 
 an isolation sleeve radially surrounding the interior mandrel; and 
 wherein the processing and storage means is located radially between the mandrel and the sleeve. 
 
     
     
         8 . A work arrangement for a wellbore comprising:
 a running string;   is a work tool that is disposed within the wellbore by the running string to perform an operation within the wellbore;   a logging tool carried by the running string to detect and record one or more operational conditions relating to operation of the work tool within the wellbore.   
     
     
         9 . The work arrangement of  claim 8  wherein:
 the work tool comprises a jarring tool; and 
 the logging tool detects and records operational condition data from the group consisting essentially of: impact data relating to the jarring tool, compression/tension on the running string, flow bore pressure within the running string, and temperature. 
 
     
     
         10 . The work arrangement of  claim 9  wherein:
 the work tool comprises a drilling assembly; and 
 the logging tool detects and records operational condition data from the group consisting essentially of: torque, work tool inclination, flowbore pressure, annulus pressure, and weight-on-bit. 
 
     
     
         11 . The work arrangement of  claim 9  wherein:
 the work tool comprises a scale cleaning tool; and 
 the logging tool detects and records operational condition data from the group consisting essentially of: flowbore pressure, annulus pressure, and inclination. 
 
     
     
         12 . The work arrangement of  claim 9  wherein the running string comprises coiled tubing. 
     
     
         13 . The work arrangement of  claim 9  wherein the logging tool comprises:
 a tool body having axial ends with connections for incorporation into the work string; 
 an axial flow passage disposed within the tool body; 
 one or more sensors for determining at least one wellbore condition relating to the operation of the work string and providing one or more data signals indicative of the at least one wellbore condition; and 
 a processing and storage means within the tool body for storage of data signals provided by the one or more sensors. 
 
     
     
         14 . The work arrangement of  claim 13  wherein the tool body comprises:
 a radially interior mandrel; 
 an isolation sleeve radially surrounding the interior mandrel; and 
 wherein the processing and storage means is located radially between the mandrel and the sleeve. 
 
     
     
         15 . A method of operating a work arrangement within a wellbore, the method comprising the steps of:
 disposing a work arrangement into the wellbore, the work arrangement having a running string, a work tool carried by the running string for performing an operation within the wellbore, and a logging tool carried by the running string to detect and record data relating to one or more operational conditions relating to operation of the work tool within the wellbore;   operating the work tool;   detecting and recording the data with the logging tool;   removing the work arrangement from the wellbore;   analyzing the data; and   adjusting operational parameters for the work tool.   
     
     
         16 . The method of  claim 15  wherein:
 the step of operating the work tool comprises operating a jarring tool; and 
 the detected and recorded data includes data from the group consisting essentially of: impact data relating to the jarring tool, compression/tension on the running string, flow bore pressure within the running string, and temperature. 
 
     
     
         17 . The method of  claim 15  wherein:
 to the step of operating the work tool comprises operating a drill bit; and 
 the detected and recorded data includes data from the group consisting essentially of: torque, work tool inclination, flowbore pressure, annulus pressure, and weight-on-bit. 
 
     
     
         18 . The method of  claim 15  wherein:
 the step of operating the work tool comprises operating a scale cleaning tool; and 
 the detected and recorded data includes data from the group consisting essentially of: flowbore pressure, annulus pressure, and inclination.