Risked Offshore Development Plan (New)
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This Volumetric project sets up an exploration field development plan based on two prospects in an offshore field.
Reserves for each prospect have been allocated across an exploration well and a development program that is automatically generated by parameters set in WellSpring.
Risk has been applied to the drilling program based on a 20% chance of exploration drilling finding reserves and an 80% chance of development drilling success.
From the network tab you can observe the total capital budget, including dry-hole costs, for the prospects based on risked and unrisked results.
The drilling automation is set up in WellSpring's Drilling tab and allocates rigs for the drilling programs based on availability and time of year.
Downtime is applied during the summer months of the year to represent inclement weather conditions such as hurricanes.
This example is run under the India production sharing agreement and cost-recovery results are available in the report "India PSC Royalty Details"
run at the scenario level from the the Reporting tab.
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Drilling 1: Risked Offshore Development Plan
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Automated Drill to Fill (New)
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The Volumetric project demonstrates how quickly a working drilling program can be generated using WellSpring's AutoPlan feature for filling facilities,
such as may be required for a CBM field development plan. A thirty well drilling program is generated to keep the natural gas plant at or near capacity.
Go the AutoPlan tab and select the gas plant in the navigation tree to see the parameters used to automate the drilling process.
In the Planview tab you can observe the periods the gas plant is at capacity as indicated by the bright red facility utilization bars.
Try setting different drilling parameters for the gas plant and see how that would impact capacity utilization.
You can observe how little effort is required to set up one of these projects by Deleting Auto-Added Assets from the Asset menu at the top of the WellSpring window.
The project essentially consists of a type well to use as a drilling template, field-level costs, a gas plant with a capacity constraint,
and a drilling program based on capacity utilization triggers. Because WellSpring is also a useful tool to work with after drilling has commenced,
a few additional field facilities are established in the production network to remind us to address water handling and compression issues at a later date.
As your drilling results start to come in, you can migrate from using automated programs based on a type well to manually scheduling your new drills by creating
detailed well forecasts and dragging and dropping the WellSpring well in time to the appropriate date. ... learn more
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Drilling 2: CBM Fill Facilities
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Sour Gas Dehydration
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This project looks at a dehydrator upgrade for a sour gas field that operates at capacity for both water and sulfur extraction.
It demonstrates how WellSpring can be used to model the complexities of a gathering system with multiple constraints, and how WellSpring
can provide detailed cash flow and production forecasts for a capital investment. In the Planview Tab, the bright blue bars indicate the period
the dehydrators are at capacity, and the bright yellow bars are the period the gas plant is at it's sulfur extraction limit. In the Planview tab,
you can see the incremental production from upgrading the dehydrator by reporting at the project level (select the radio button to the left of the
project name in the asset list). In the Reports tab, look at the Economic Summary Report at the project level to get an understanding of the economic
impact of upgrading the dehydrator.
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Volumetric Flow 3: Sour Gas Dehydration
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Field Compression
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This hydraulic project is an example of a nodal analysis economics project. It looks at adding field compression in a pipeline shared with a third party.
In the Network tab you can see the inlet/outlet pressures at each node for any given month in the project (change the display date with the +/- month &
year buttons just above the network diagram). In the Planview tab, you can see the incremental production from adding compression by reporting at the project
level (select the radio button to the left of the project name in the asset list). In the Reports tab, look at the Economic Summary Report at the project
level to get an understanding of the incremental impact of installing the compressor.
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Compression 5: Field Compression (Flat Roy)
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Corporate Consolidation
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This project demonstrates how to combine results from 4 business units with separate WellSpring projects for each BU.
The results from each BU is brought into this project using meta project links. On the Network tab you can select the project link assets
and see which project and scenario that are linked. The project shows two different plans, one based on $320 MM capital budget and the other on a $60 MM budget.
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Demo - Meta Project Links
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Camden Hills GOM Drilling (US)
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This volumetric project looks at running an automated drilling program to make the most of the allocated pipeline capacity in the Canyon
Express Pipeline system in the Gulf of Mexico. If you look at the AutoPlan tab for the Camden Hills facility in the Auto-drilling scenario,
you can see the drilling parameters used to keep the facility full over time. This project demonstrates how WellSpring can be used as an exploration and planning tool.
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Volumetric Flow 4: Camden Hills GOM Drilling (US)
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India Production Sharing Contract
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This project assesses an early stage development plan for an offshore block in India. Capacity is set at the platform, and an
automated drilling plan is used to schedule a four year, 22 well drilling program with rig limitations. To review the PSC cost recovery and
profit petroleum calculations, go to the Report tab, select the scenario asset on the left (AutoDrill Scenario), and select the reports for
India PSC Royalty Details and India PSC Tax Details. You can then progress from the automated drilling scenario to a detailed development plan,
which is demonstrated in the Detailed Infrastructure Plan scenario in this project.
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India PSC Demo
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Hands-On Training Example
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In this example, we will create a WellSpring Project containing two oil wells flowing into a battery under the following assumptions:
- One well produces oil while the other produces both oil and water.
- Water is extracted at the battery and re-injected back into an injection well.
- The injection well has a daily limit on the amount of water it can handle.
Highlighted WellSpring Features:
- Managing Wells and Facilities
- Creating Pipeline Connections
- Creating Production Forecast
- Defining By-Product Extractions
- Setting Constraint Limits
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