Systems and methods for planning well locations with dynamic production criteria

1. A method for planning a well location, the method comprising:

defining, by a processing unit, coordinates for each well target in a plurality of well targets subject to a well target constraint and one or more sets of property filters, wherein the one or more sets of property filters includes a pore volume property filter value assigned to each grid element in a three-dimensional grid representing a geological model;

generating, by the processing unit, a subsurface well plan for the well location by:

connecting together well targets in the plurality of well targets that satisfy a subsurface well plan constraint, the subsurface well plan constraint comprising a well type constraint or a drilling cost constraint; and

discarding from the plurality of well targets at least one well target that does not satisfy the subsurface well plan constraint;

generating, by the processing unit, profile data for the subsurface well plan;

computing, by the processing unit, a well perforation based on the one or more sets of property filters;

generating, by the processing unit, simulation data by simulating production based on (i) the well perforation, (ii) the subsurface well plan, and (iii) the profile data;

computing, by the processing unit, an objective function for the well location based on simulation data to generate a computed objective function, wherein the objective function is usable to identify an optimal position of the well location based on an economic metric or a production metric;

determining, by the processing unit, whether one or more stopping criteria are met; and

drilling a well at the well location.

2. The method of claim 1 , further comprising:

for each respective well target in the plurality of well targets:

generating updated coordinates for the respective well target subject to a decision variable bound by using the computed objective function;

updating an on/off variable for a perforation interval containing the respective well target using the computed objective function; and

adding the updated coordinates for the respective well target to the coordinates for the respective well target or moving the respective well target to the updated coordinates;

computing a new subsurface well plan for the well location by:

connecting together well targets in the plurality of well targets that satisfy the subsurface well plan constraint; and

discarding from the plurality of well targets each well target that does not satisfy the subsurface well plan constraint;

computing new profile data for the new subsurface well plan;

computing a new well perforation based on the one or more sets of property filters;

generating new simulation data by simulating new production based on (i) the new well perforation, (ii) the new subsurface well plan, and (iii) the new profile data;

computing a new objective function based on the new simulation data; and

determining whether the one or more stopping criteria are met.

3. The method of claim 2 , wherein:

the coordinates for each well target are updated subject to the decision variable bound by using a best computed objective function according to a predetermined criterion; and

the on/off variable is updated using the best computed objective function.

4. The method of claim 2 , wherein the decision variable bound for the respective well target represents a predefined range for movement of the respective well target from an original location of the respective well target.

5. The method of claim 2 , wherein the coordinates for the respective well target are updated using grid coordinates, Cartesian coordinate, or a distance and direction.

6. The method of claim 5 , wherein the coordinates for the respective well target are updated using the distance and direction, and wherein the direction is measured using angles.

7. The method of claim 1 , wherein the objective function includes an objective representing an optimal position of the well location based on an economic metric or a production metric.

8. The method of claim 1 , wherein the well target constraint includes a minimum spacing or a maximum spacing for each well target.

9. The method of claim 1 , wherein the subsurface well plan constraint is the well type constraint, and wherein the well type constraint represents one of a horizontal well, a slanted well, a multilateral well, a multi-target well, a single-target well, a producer well, or an injector well.

10. The method of claim 1 , wherein the profile data represents pipe and tubing connections and trajectories from subsurface locations to surface connections.

11. The method of claim 1 , further comprising:

displaying a well plan for the well location, the well plan including the subsurface well plan and the profile data.

12. The method of claim 1 , wherein the subsurface well plan constraint is the drilling cost constraint.

13. The method of claim 1 , wherein the simulation data is generated dynamically by a reservoir simulator.

14. The method of claim 1 , wherein the well location is an optimal location as defined according to a predetermined criteria.