A set of Subsurface Production Operational activities towards execution of Field Development Plan.
The key instrument of WRM is Nodal Analysis which leads to a proper selection of WRM Activities.
The WRM Activities are usually classified by the purpose:
| Operational HSE | Production acceleration | Production Cost | Sweep efficiency | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Infill drilling | Production targets | designing & maintaining integrity | designing & maintaining integrity | Increasing (Drilling) | Optimising (Conformance control) | ||||
| Infill drilling | Side-tracks | Flow Stimulation | Flow Shut-off | EOR | |||||
The WRM Activities are facilitated by following execution mechanisms:
| Subsurface | Surface | |||
|---|---|---|---|---|
| Drilling & Completion | Workovers | Wireline | EOR facilities and procedures | |
Prioritizing of WRM Activities is based on technical feasibility and economics, provided by WRM Activity Value @model.
This particularly leads to the following major asset challenges:
| 1 | Where to drill the |
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There are five major categories in WRM
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1. Drilling new well or new side-track
2. Workover on existing wells
3. Changing flowrate on existing wells
4. Changing the temperature and composition of injection fluid
5. Changing the surface infrastructure to avail all the subsurface production to be gathered in the tanks
This leads to the four major asset challengs:
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| new well or side-track and how |
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| to completion it ? |
| 2 |
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| Which wells |
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| to workover |
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| and how ? |
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| Which wells to change the flow rate and whether increase or decrease ? | |
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| What fluid and at what time to inject ? |
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| 5 | Is there a bottleneck in surface infrastructure and whether it needs update ? |
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The answers to these questions are provided by playing the various scenarios over the calibrated full-field flow model.
See Also
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Petroleum Industry / Upstream / Production / Subsurface Production
[ Nodal Analysis ][ Field Development Planning ]
[ WRM Activities ][ WRM Activity Value @model ]
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