Modeling Complex Well Completions

A system for modeling complex well completions, the system comprising:

• at least one processor;
• and
• a memory storing instructions that, when executed by the at least one processor, cause the at least one processor to perform operations comprising:
• identifying a well that is a candidate for receiving a complex well completion, the complex well completion including completion devices configured to alter a production from the well;
• generating initial configuration data representing completion devices for the well;
• modeling the well as a set of wellbore segments, the set of wellbore segments defining a well network, wellbore segments of the set of wellbore segments being modeled to represent completion devices based on the initial configuration data;
• integrating the well network into a reservoir simulation grid by locating the wellbore segments within the simulated reservoir at particular locations within the reservoir simulation grid;
• selecting a portion of the well network comprising at least one wellbore segment, the portion of the well network within a first area of the reservoir simulation grid;
• refining the reservoir simulation grid within the first area that includes the selected at least one wellbore segment;
• coarsening the reservoir simulation grid in a second area of the reservoir simulation grid outside of the first area that includes the at least one wellbore segment;
• executing a simulation of the reservoir simulator, the simulation generating production data representing the production from the well, wherein the refining provides data at a high resolution at the first area, and wherein the coarsening enables a reduction in processing resources relative to the processing resources required for the first area;
• and
• rendering for display a simulated production profile of the well.

One or more non-transitory machine-readable storage devices storing instructions for modeling complex well completions, the instructions being executable by one or more processors, to cause performance of operations comprising:

• identifying a well that is a candidate for receiving a complex well completion, the complex well completion including completion devices configured to alter a production from the well;
• generating initial configuration data representing completion devices for the well;
• modeling the well as a set of wellbore segments, the set of wellbore segments defining a well network, wellbore segments of the set of wellbore segments being modeled to represent completion devices based on the initial configuration data;
• integrating the well network into a reservoir simulation grid by locating the wellbore segments within the simulated reservoir at particular locations within the reservoir simulation grid;
• selecting a portion of the well network comprising at least one wellbore segment, the portion of the well network within a first area of the reservoir simulation grid;
• refining the reservoir simulation grid within the first area that includes the selected at least one wellbore segment;
• coarsening the reservoir simulation grid in a second area of the reservoir simulation grid outside of the first area that includes the at least one wellbore segment;
• executing a simulation of the reservoir simulator, the simulation generating production data representing the production from the well, wherein the refining provides data at a high resolution at the first area, and wherein the coarsening enables a reduction in processing resources relative to the processing resources required for the first area;
• and
• rendering for display a simulated production profile of the well.