ComboCurve: Proximity
Proximity Forecasting
Overview
Proximity Forecasting is a feature within ComboCurve that allows automation of Type Curve generation for low-producing wells based off of location & header criteria. The feature can also be utilized to analyze/compare the performance of mature wells against surrounding analogous wells. The feature can be accessed via the Modular Forecasting UI located below - for more details on Modular Forecasting please refer to its Knowledge Base document.
If you're looking for documentation on our Auto Proximity feature, which is integrated in our auto forecasting form, see our Auto Proximity Knowledge Base document.
How to use Proximity
Within the Modular Forecasting UI, you should notice a tab named 'Proximity' next to 'Parameters.' Navigate there to configure & run Proximity Forecasting.
To utilize Proximity Forecasting, you'll first need to toggle on 'Enable Proximity' under the 'Proximity Options' dropdown. If you're already in the Proximity tab, you should now see the 'Fetch Proximity Wells' button un-grey. This means that Proximity Forecasting is now enabled.
Proximity Tab
The workflow for Proximity Forecasting is designed and intended to be used similarly to Type Curves, meaning it progresses from selecting a representative wellset, normalizing that wellset, then generating a fit on those representative wells. We'll be going over that process below.
Form Tab
The first step is going to be to define the group of wells that you'd like Proximity to fetch representative wells from. If you'd like to pull forecasts from other projects (i.e. basin studies, type curve repositories, etc.), you can enter their projects' name in the 'Current Project' dropdown. After that, just select your forecast(s) after clicking 'Select Forecasts,' and they will display in the below list. You can select multiple forecasts for Proximity Forecasting to choose from - the hierarchy for wells that exist in multiple forecasts is dependent on their order.
After selecting the forecast for Proximity, you will then determine your search radius. The search radius will be based on the reference location that includes Surface Location, Heel Location, or Toe Location. If the well header is not filled out for any of these locations, then the Surface Location will be used by default. Before we move on to criteria, the last option here will be to select the well count range that is used for our background wells. (Max being 200 wells)
The last field to fill out before we 'Fetch Proximity Wells' will need to be the Criteria. Here you will 'Add Criteria' to determine which headers you would like the background wells to match to our target well (Ex: Landing Zone, Perf Lateral Length, Current Operator, etc.) There is not a limit on the number of criteria you can add. You will then have the option to select whether this Criteria is 'Mandatory' or not. If it is unchecked, Proximity will do its best to match background wells to the header, but it is not required in the algorithm.
If you add Numeric headers as criteria there will be additional fields to fill out to help get your best results, including Relative Value, Relative Percentage, and an Absolute Range. You can then scroll to the bottom and 'Fetch Proximity Wells.'
Normalization Tab
The Normalization within Proximity will look almost identical to our Type Curve module where we can select different normalization fit types such as One to One, Linear, Power Law, and 2 factor. For more detailed documentation on Normalization you can refer to the ComboCurve: Normalization article.
Fit Tab
Similar to the Normalization tab, the Fit tab is very similar as well with a few toggles at the bottom specifically referring to Proximity. After you select your fit types and parameters, you will be able to select which P-Series you want to use for your Proximity Fit. If you have historical production on this target well, you will also have the option to 'Fit to target well production data'.
Once you have these parameters set, you will be able to run Proximity on the target well and see your fit on the Editing Chart to the right.
Customizing Proximity
Similarly to the forecast grid page, the Proximity forecasting tab can be configured to whatever view you'd like. The below sections will detail configuring charts, configuring forms, and exports.
Chart/View Configurations
Beginning from the left side of the page, you'll notice the forecast name, the well name, and a variety of well headers. These well headers can be configured from the Well Headers button on the right side of the page.
Next to that control, you'll also see icons to control the number of charts, create/edit configurations, and view keyboard shortcuts. If you're not familiar with configurations (human with gear icon), these can be used to save the current view as a config, so that ComboCurve will always default to this view when opening Proximity Forecasting.
On the charts themselves, you'll see dropdowns next to each chart. These can be used to change these to display a multitude of charts we've created for Proximity so you can configure a view that's best for your use case!
Lastly, in the upper righthand corner of each chart you have the ability to configure exactly what time series are displayed on a per-chart basis from the Streams menu. Settings surrounding the chart itself (axes, scale, legend, etc.) can be controlled from the Chart Settings menu.
All of the above settings can be saved into your default view via the configuration menu.
Related Articles
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