System and method for reservoir flow surveillance

Abstract

The invention provides a system for monitoring a well, the system comprises at least one well monitoring system. The at least one well monitoring system comprise at least one tracer release system, at least one sensor system and at least one communication system comprising at least one transmitter and at least one receiver. The at least one communication system is configured to transmit information from the at least one sensor system and/or at least one tracer release system. The at least one communication system is configured to control the operation of the at least one sensor system and/or at least one tracer release system.

1 . A system for monitoring a well, the system comprising;
 at least one well monitoring system comprising;
 at least one tracer release system; 
 at least one sensor system; 
 at least one communication system comprising at least one transmitter and at least one receiver; 
   wherein the at least one communication system is configured to transmit information from the at least one sensor system and/or at least one tracer release system; and   wherein the at least one communication system is configured to control the operation of the at least one sensor system and/or at least one tracer release system.   
     
     
         2 . The system according to  claim 1  wherein the at least one sensor system is selected from the group of pressure sensor, temperature sensor, volume sensor, flow rate sensor and/or density sensor. 
     
     
         3 . The system according to  claim 1  wherein the at least one well monitoring system is configured to be arranged or installed in the well, in or on the formation, in the annulus and/or in or on downhole tubing. 
     
     
         4 . The system according to  claim 1  wherein the at least one well monitoring system is configured to be arranged or installed on wireline, slickline, coiled tubing, and/or drill pipe and to be lowered into the well. 
     
     
         5 . The system according to  claim 1  wherein the at least one transmitter is a wireless transmitter and/or the at least one receiver is a wireless receiver. 
     
     
         6 . The system according to  claim 1  wherein the system further comprises a sampler device configured for surface or downhole sampling. 
     
     
         7 . The system according to  claim 1  wherein the system is configured to measure at least one property, condition and/or characteristic of a well, a well fluid and/or a component of at least one well fluid. 
     
     
         8 . The system according to  claim 1  wherein the system is configured to monitor a well fluid condition and/or tracer release in a production well. 
     
     
         9 . The system according to  claim 8  wherein the at least one tracer release system comprises one or more tracer apparatus configured to be positioned, arranged or installed downstream of one or more influx zones. 
     
     
         10 . The system according to  claim 1  wherein the system is configured to monitor at least one property, condition and/or characteristic of a well and/or well fluid and/or tracer release in an injection and/or producer well. 
     
     
         11 . The system according to  claim 10  wherein the at least one tracer release system comprises one or more tracer apparatus configured to be positioned, arranged or installed upstream of one or more injection zones. 
     
     
         12 . The system according to  claim 1  wherein the at least one tracer release system is controlled by a control unit to selectively release tracer into the well. 
     
     
         13 . The system according to  claim 1  wherein the tracer release system is configured to release at least one tracer. 
     
     
         14 . The system according to  claim 1  wherein the system is a modular system. 
     
     
         15 . The system according to  claim 1  wherein the at least one monitoring system comprises two or more tracer release systems. 
     
     
         16 . The system according to  claim 1  comprising two or more monitoring systems. 
     
     
         17 . A method of monitoring a well, comprising;
 providing at least one well monitoring system in the well, the at least one well monitoring system comprising:
 at least one tracer release system; 
 at least one sensor system; and 
 at least one communication system comprising at least one transmitter and at least one receiver; 
   transmitting information from the at least one sensor system and/or at least one tracer release system to surface;   receiving a control signal to control the operation of the at least one sensor system and/or at least one tracer release system.   
     
     
         18 . The method according to  claim 17  comprising further measuring at least one property, condition and/or characteristic of a well, at least one well fluid, and/or a component of at least one well fluid. 
     
     
         19 . The method according to  claim 18  wherein the at least one property, condition and/or characteristic of a well, at least one well fluid, and/or a component of at least one well fluid is selected from the group consisting of pressure, temperature, volume, density, flow rate, tracer type and/or tracer concentration. 
     
     
         20 . The method according to  claim 17  wherein the well is a production well. 
     
     
         21 . The method according to  claim 17  wherein the well is an injector well. 
     
     
         22 . The method according to  claim 18  comprising measuring the at least one property, condition and/or characteristic of a well, at least one well fluid, and/or a component of at least one well fluid before, after and/or during the release of tracer from the at least one tracer release system. 
     
     
         23 . The method according to  claim 17  further comprising releasing tracer from the at least one tracer release system in response to a command from surface, a command from a control unit or in response to a well condition. 
     
     
         24 . The method according to  claim 18  comprising measuring the at least one property, condition and/or characteristic of a well, at least one well fluid, and/or a component of at least one well fluid downhole and/or at surface. 
     
     
         25 . The method according to  claim 23  further comprising measuring a concentration of released tracer in at least one well fluid by sampling at one or more sampling times.