Conductivity probe fluid property measurement systems and related methods

Abstract

Conductivity probe fluid property measurement systems and related methods are disclosed herein. An example apparatus includes a flow meter and a fluid conduit to provide a flow path for a fluid relative to the flow meter. The example apparatus includes a conductivity probe coupled to the fluid conduit to generate brine conductivity data of the fluid during flow of the fluid through the fluid conduit. The example apparatus includes a processor to modify fluid flow data generated by the flow meter based on the brine conductivity data.

What is claimed is: 
     
         1 . An apparatus comprising:
 a fluid conduit to provide a flow path for a fluid;   a conductivity probe coupled to the fluid conduit and configured to generate brine conductivity data of the fluid; and   a processor communicatively coupled to the conductivity probe, wherein the processor is configured to detect a presence of a solid slug in the flow path of the fluid conduit based on the brine conductivity data, wherein the solid slug comprises sand.   
     
     
         2 . The apparatus of  claim 1 , wherein the conductivity probe is coupled to the fluid conduit downstream of a flow meter coupled to the fluid conduit. 
     
     
         3 . The apparatus of  claim 2 , wherein the conductivity probe is disposed on a vertical end flange of the flow meter. 
     
     
         4 . The apparatus of  claim 1 , wherein the processor is configured to determine a bottom-hole pressure based on a change in a brine salinity value of the fluid derived from the brine conductivity data. 
     
     
         5 . The apparatus of  claim 1 , wherein the processor is configured to modify fluid flow data generated by a flow meter by modifying a gamma-ray water attenuation coefficient based on a brine salinity value derived from the brine conductivity data. 
     
     
         6 . The apparatus of  claim 1 , wherein the processor is configured to detect a change in a brine salinity value of the fluid over time based on the brine conductivity data, and wherein the processor is further configured to identify a change in a reservoir fluid chemistry based on the detection of the change in the brine salinity value. 
     
     
         7 . The apparatus of  claim 1 , wherein the processor is configured to modify fluid flow data generated by a flow meter based on the brine conductivity data, wherein the fluid is a multiphase fluid and the processor is further configured to determine one or more of a holdup or a flow rate for a phase of the multiphase fluid based on the modified fluid flow data. 
     
     
         8 . The apparatus of  claim 1 , wherein the conductivity probe is a radio frequency probe. 
     
     
         9 . The apparatus of  claim 1 , wherein the conductivity probe is disposed downstream of a choke. 
     
     
         10 . The apparatus of  claim 1 , wherein at least one of a choke or a sand separator is located between a flow meter and the conductivity probe. 
     
     
         11 . A method, comprising:
 generating brine conductivity data of a fluid flowing through a conduit with a conductivity probe; and   identifying a presence of a solid slug in the fluid flowing through the conduit based on the brine conductivity data, wherein the solid slug is a sand slug.   
     
     
         12 . The method of  claim 11 , wherein the generated brine conductivity data is based on a first set of correction factors and a second set of correction factors for the conductivity probe. 
     
     
         13 . The method of  claim 11 , further comprising:
 applying a correction to flow data generated by a flow meter during the flow of the fluid through the conduit; and   determining one or more of a hold up or a flow rate of a phase of the fluid based on the corrected fluid flow data.   
     
     
         14 . The method of  claim 11 , further comprising:
 detecting a change in fracture chemistry based on changes in the brine conductivity data.   
     
     
         15 . The method of  claim 11 , further comprising:
 detecting a change in salinity over time based on the brine conductivity data;   updating a density of a brine in the fluid based on the detected change in salinity; and determining a bottom-hole pressure based on the updated density of the brine.   
     
     
         16 . A method comprising:
 applying a correction to fluid flow data generated by a flow meter during flow of a multiphase fluid through the flow meter to generate corrected fluid flow data, the correction based on brine conductivity data generated by a conductivity probe during flow of the multiphase fluid through a conduit coupled to the flow meter; and   identifying a presence of a solid slug in the multiphase fluid flowing through the conduit based on the corrected fluid flow data, wherein the solid slug is a sand slug.   
     
     
         17 . The method of  claim 16 , further comprising:
 determining one or more of a holdup or a flow rate of a phase of the multiphase fluid based on the corrected fluid flow data.   
     
     
         18 . The method of  claim 16 , further comprising:
 detecting a change in salinity over time based on the brine conductivity data; and   identifying a change in reservoir fluid chemistry based on the detected change in salinity.   
     
     
         19 . The method of  claim 16 , wherein applying the correction to the fluid flow data includes modifying a gamma-ray water attenuation coefficient. 
     
     
         20 . The method of  claim 16 , further comprising:
 detecting a change in salinity over time based on the brine conductivity data;   updating a density of a brine in the multiphase fluid based on the detected change in salinity; and   determining a bottom-hole pressure based on the updated density of the brine.