Case Studies ============ Network schematics ------------------ .. figure:: ../img/strategic_permian_demo.png :width: 1000 :align: center :alt: Strategic permian demo network schematic Strategic Permian demo network. .. figure:: ../img/strategic_toy_network.png :width: 1000 :align: center :alt: Strategic toy case study network schematic Strategic toy case study network. .. figure:: ../img/strategic_small_network.png :width: 1000 :align: center :alt: Strategic small case study network schematic Strategic small case study network. .. figure:: ../img/strategic_treatment_demo_network.png :width: 1000 :align: center :alt: Strategic treatment demo network schematic Strategic treatment demo network. .. figure:: ../img/workshop_network.png :width: 1000 :align: center :alt: Workshop network schematic Strategic model network developed for use in PARETO workshops. Comparison table ---------------- .. |br| raw:: html
.. list-table:: :header-rows: 1 * - - Strategic Permian demo - Strategic toy case study - Strategic small case study - Strategic treatment demo - Strategic surrogate demo - Strategic workshop baseline - Operational case study * - **Input file** - ``strategic_permian_demo.xlsx`` - ``strategic_toy_case_study.xlsx`` - ``strategic_small_case_study.xlsx`` - ``strategic_treatment_demo.xlsx`` - ``strategic_treatment_demo_surrogates.xlsx`` - ``workshop_baseline_all_data.xlsx`` - ``operational_generic_case_study.xlsx`` * - **Model type** - Strategic - Strategic - Strategic - Strategic - Strategic - Strategic - Operational * - **Description** - A representative example of a |br| Permian system. Nearly identical |br| to treatment demo, but with |br| reduced CAPEX options. - A very small, toy-sized network. |br| Useful for testing and debugging. - Larger network, but "small" in the |br| sense that disposal and pipeline |br| expansion are not allowed, so the |br| model solves quickly. - Larger network, and disposal and |br| pipeline expansion are allowed. |br| Takes a bit longer to solve. This |br| can be seen as the "default" case |br| study for the strategic model. - Same as strategic treatment demo, |br| but allows for the option (but not |br| the requirement) to use surrogate |br| models for desalination sites (MD |br| and MVC). - Network developed for use in |br| PARETO workshops. Solves quickly. - Generic case study for the |br| operational model. Note that this |br| case study cannot currently be run |br| in PARETO UI - it can only be run |br| using the Python command line |br| interface. * - **Decision period** - Week - Week - Week - Week - Week - Week - Day * - **Decision horizon** - 52 weeks - 52 weeks - 52 weeks - 52 weeks - 52 weeks - 10 weeks - 5 days * - **Network nodes** - 28 - 9 - 28 - 28 - 28 - 9 - 0 * - **Production pads** - 14 - 4 - 15 - 14 - 14 - 4 - 5 * - **Production tanks** - N/A - N/A - N/A - N/A - N/A - N/A - 14 * - **Completions pads** - 3 - 1 - 4 - 3 - 3 - 2 - 1 * - **External completions pads** [#]_ - 1 (CP03) - 0 - 0 - 1 (CP03) - 1 (CP03) - 1 (CP02) - N/A * - **Disposal sites (SWD)** - 5 - 2 - 3 - 5 - 5 - 2 - 2 * - **Disposal expansion allowed?** [#]_ - Yes, for K03 and K05 - No - No - Yes, for K03 and K05 - Yes, for K03 and K05 - No - No * - **Storage sites** - 3 - 3 - 2 - 3 - 3 - 3 |br| Only one storage site (S02) is shown |br| in the above schematic and used in |br| the workshop baseline scenario. Two |br| additional storage sites (S03 and S04) |br| are unused in the baseline scenario, |br| but are included in the input file so |br| they can used in the beneficial reuse |br| scenario (which builds off of the |br| baseline scenario). - 0 * - **Storage expansion allowed?** - Yes - Yes - No - Yes - Yes - Yes - No * - **Completions pad storage?** - No - No - Yes - No - No - No - Yes * - **Treatment sites** - 4 |br| Non-desalination sites: R02, R04, R05 |br| Desalination sites: R03 |br| All sites have zero initial treatment |br| capacity - 2 |br| Non-desalination site: R02 |br| Desalination site: R01 |br| Both sites have zero initial |br| treatment capacity - 2 |br| Both are non-desalination sites |br| Both sites have nonzero initial |br| treatment capcity - 6 |br| Non-desalination sites: R02, R04, R05 |br| Desalination sites: R01, R03, R06 |br| All sites have zero initial treatment |br| capacity - 6 |br| Non-desalination sites: R02, R04, R05 |br| Desalination sites: R01, R03, R06 |br| All sites have zero initial treatment |br| capacity - 2 |br| Non-desalination site: R02 |br| Desalination site: R01 |br| Both sites have zero initial |br| treatment capacity - 2 * - **Treatment technologies** - Non-desalination: CB, CB-EV |br| Desalination: FF - Non-desalination: CB, CB-EV |br| Desalination: MVC, MD, OARO - Non-desalination: CB - Non-desalination: CB, CB-EV |br| Desalination: FF, HDH - Non-desalination: CB, CB-EV |br| Desalination (simple): FF, HDH |br| Desalination (surrogate): MVC, MD - Non-desalination: CB, CB-EV |br| Desalination: MVC, MD - N/A * - **Treatment expansion allowed?** - Yes - Yes - Yes (but only one capacity option) - Yes - Yes - Yes - No * - **Pipeline expansion allowed?** - Yes - Yes - No - Yes - Yes - Yes - No * - **Hydraulics settings** - Roughness factor: 110 |br| Head loss: 0.03 - Roughness factor: 110 |br| Head loss: 0.03 - Roughness factor: 110 |br| Head loss: 0.03 - Roughness factor: 110 |br| Head loss: 0.03 - Roughness factor: 110 |br| Head loss: 0.03 - Roughness factor: 110 |br| Head loss: 0.03 - N/A * - **Economics** - Discount rate: 8% |br| CAPEX lifetime: 20 years - Discount rate: 8% |br| CAPEX lifetime: 20 years - Discount rate: 8% |br| CAPEX lifetime: 20 years - Discount rate: 8% |br| CAPEX lifetime: 20 years - Discount rate: 8% |br| CAPEX lifetime: 20 years - Discount rate: 8% |br| CAPEX lifetime: 20 years - N/A * - **Notes** - Recommend solving with Gurobi, |br| or with >15min runtime with CBC. |br| - - - Recommend solving with Gurobi. - Recommend solving with Gurobi. - - .. [#] In the strategic model, external completions pads can be used to model opportunities for water sharing outside of the main network. .. [#] In the strategic model, disposal capacity expansion is only allowed for SWD sites for which the initial disposal capacity is 0. Abbreviations ^^^^^^^^^^^^^ * CB: Clean brine treatment * CB-EV: Clean brine treatment with enhanced evaporation * FF: Falling film evaporation * HDH: Humidification-dehumidification * MD: Membrane distillation * MVC: Mechanical vapor compression * OARO: Osmotically assisted reverse osmosis * SWD: Salt water disposal