Asphaltene Onset Pressure Map

Abstract

A method and system for disposing a fluid sampling tool into a wellbore at a first location, taking a first fluid sample with the fluid sampling tool, identifying a first asphaltene onset pressure (AOP) using the first fluid sample, and moving the fluid sampling tool to a second location in the wellbore. The method may further include taking a second fluid sample with the fluid sampling tool, identifying a second AOP at the second location in the wellbore, and forming an AOP map based at least on the first AOP and second AOP. The system may include a fluid sampling tool with one or more probes for injecting the one or more probes into a wellbore and taking a plurality of fluid samples from the wellbore and an information handling system.

What is claimed is: 
     
         1 . A method comprising:
 disposing a fluid sampling tool into a wellbore at a first location;   taking a first fluid sample with the fluid sampling tool;   identifying a first asphaltene onset pressure (AOP) using the first fluid sample;   moving the fluid sampling tool to a second location in the wellbore;   taking a second fluid sample with the fluid sampling tool;   identifying a second AOP at the second location in the wellbore; and   forming an AOP map based at least on the first AOP and second AOP.   
     
     
         2 . The method of  claim 1 , wherein at least the first AOP and the second AOP are used in a first Neural Network (NN) model to form the AOP map. 
     
     
         3 . The method of  claim 1 , further comprising forming a reservoir simulation based at least on the AOP map. 
     
     
         4 . The method of  claim 3 , wherein at least the AOP map is used in a second NN model to form the reservoir simulation. 
     
     
         5 . The method of  claim 3 , further comprising making a production decision based at least on the reservoir simulation. 
     
     
         6 . The method of  claim 5 , wherein at least the reservoir simulation is used in a third NN model to form the production decision. 
     
     
         7 . The method of  claim 1 , wherein the first location and the second location are separated by vertical depth, lateral distance, extent pressure across a field, different temperature, or other state condition. 
     
     
         8 . The method of  claim 1 , wherein identifying the first AOP, identifying the second AOP, and forming the AOP map is processed in real time. 
     
     
         9 . The method of  claim 1 , wherein identifying the first AOP and second AOP comprises performing a gravimetric test with the fluid sampling tool at the first location and the second location. 
     
     
         10 . The method of  claim 9 , wherein performing the gravimetric test comprises determining a first Upper Asphaltene Onset Pressure (UAOP), a Asphaltene+Resin-Flocculation Onset Pressure (ARFO), or a Bubble Point (BP). 
     
     
         11 . The method of  claim 10 , wherein at least the UAOP, the ARFO, or the BP from the gravimetric test are used in a fourth NN model to identify the first AOP or the second AOP. 
     
     
         12 . A system comprising:
 a fluid sampling tool with one or more probes for injecting the one or more probes into a wellbore and taking a plurality of fluid samples from the wellbore; and   an information handling system for:
 identifying a first asphaltene onset pressure (AOP) from at least the plurality of fluid samples; 
 identifying a second AOP from at least the plurality of fluid samples; and 
 forming an AOP map from the first AOP and second AOP. 
   
     
     
         13 . The system of  claim 12 , wherein at least the first AOP and the second AOP are used in a first Neural Network (NN) model to form the AOP map. 
     
     
         14 . The system of  claim 12 , wherein the information handling system forms a reservoir simulation based at least on the AOP map. 
     
     
         15 . The system of  claim 14 , wherein at least the AOP map is used in a second NN model to form the reservoir simulation. 
     
     
         16 . The system, of  claim 14 , wherein the information handling system makes a production decision based at least on the reservoir simulation. 
     
     
         17 . The system of  claim 16 , wherein at least the reservoir simulation is used in a third NN model to form the production decision. 
     
     
         18 . The system of  claim 12 , wherein the information handling systems processes the first AOP, the second AOP, and the AOP map in real time. 
     
     
         19 . The system of  claim 12 , wherein the fluid sampling tool performs a gravimetric test and the information handling system identifies the first AOP and the second AOP from the gravimetric test. 
     
     
         20 . The system of  claim 19 , wherein the gravimetric test determines a first Upper Asphaltene Onset Pressure (UAOP), Asphaltene+Resin-Flocculation Onset Pressure (ARFO), or a Bubble Point (BP).