CBM Solution
Challenges:
- Constrained production on gas production.
- Wells must be shifted in time in order to fit within these constraints
Flow Diagram – CBM Development Planning
A flow schematic is easily created in WellSpring to represent the field wells and facilities
Type Curve
Unconstrained Run
Actual production potential is higher than the facilities can handle, so not all wells
can be brought on at the same time
Individual constraints can be added at each of the facility nodes
WellSpring then re-calculates the model, shifting individual wells
In time in order to meet the constraints
After the optimization, the field is producing within the facility constraints
This model can then be used to compare different facility sizes
We can create a second scenario with a different water handling capacity
The plot below shows the higher capacity subtracted from the base
Economics
With the respective capital and operating costs entered for these scenarios, an incremental comparison of the economics can be calculated to evaluate the alternatives.
In this example, the production is accelerated, but it doesn’t justify the increased capital for the larger facilities.
