Esri Gas Valve Isolation Trace

May 26, 2016 — Skye Perry  [5:13]

Esri released their first core gas trace tool in April 2016. In this video SSP Innovations demonstrates the new gas valve isolation trace running on the Utility Pipeline Data Model (UDPM).

Want to learn more about UPDM? You can check out the SSP Innovations UPDM services for both gas utilities and pipeline operators. In addition, we encourage you to take a look at some of the most commonly asked UPDM questions in this post, where our pipeline experts answer the UPDM FAQ we get from our clients. The questions come directly from clients SSP has migrated from APDM, PODS, and other data models onto UPDM.

You can also learn more about UPDM directly from Esri here.

Transcript

Hi this is Skye Perry with SSP Innovations and I'm here to talk to you about a new piece of Esri functionality that was just released recently in April 2016. That is Esri Gas Valve Isolation tracing. Now this is exciting for us because this is the first time we've seen a utility specific trace released within the core tools. It has been released as part of the new Esri utility and pipeline data model, UPDM.

So as you see here on the left, I have loaded UPDM data source here and the entire purpose of this is to basically be able to click on the map and isolate an area by finding the valves that would have to be operated to isolate gas flowing to a given area. So that let's jump right into the trace functionality. To start off I will go ahead and add a flag we place this flag we need to isolate anywhere in this area. It will snap to the gas pipe there the next piece is really just a run the trace at the most basic level and will run the connected isolation trace tool. I will again click near that flag. This will trace out and find the area, notice that it's select all of the records that will essentially be included in the outage if we operate the given valve and you know one of my favorite things is over here on the left is the trace results are added as a group layer to this window.

I can actually take that reorder this and place it a below my records there. Lets go ahead and zoom into these areas here and take a look at what we're finding. So I found that it basically going to operate valve 227 here isolate the whole given area and you can see the full extent of the area highlighted there in green as well as by the selected records. I can inspect these selected records by clicking the identify selected records button that would let me pull up and page through all of the individual meter sets as well as get down there to that specific gas valve that needs to be operated.

So if I move that over here we should see that flashing on the screen and in that would work just fine. So the next key piece of a valve isolation trace would to be able to mark given valve as not being operable. So mark it as inoperable could be paved over, any other issue maybe even a critical valve we can filter by the way on only critical valves within the configuration for the tool but right now we're just going to mark this specific valve here and I will zoom back into it, as inoperable so go ahead and clear my selection and what I'm gonna do now is actually utilize a tool here on the toolbar which has changed the operable status of a valve. I'm going here and click on this valve notice it's now flipping it accessible to field accessible over to false indicating that that valve is no longer accessible. So we are using fields behind the scenes to drive their functionality. But with that change I can now go and I don't have the rerun the full trace I can re-run the trace just as I ran it before.

So we go ahead and use the same components of the trace that I ran the first time and find new result and you can see here now it's a much larger area on the map. Now one of the neat things again as it's been added as a separate trace result to the map but we know this is a larger area so if I simply drag this down blue trace results #1. I will go ahead and clear my selection for the moment you can see the full extent of the trace and red. We can see the results of my first race here in green and then now in this orange color a much larger area indicating that we have valves up on this northern side that would need to be operated we can zoom in and see yes there are two valves there that would isolate this given area. So very quickly able to see those two results.

The final piece I wanted to show you guys is that there is the ability to place a squeeze off. So a plastic pipe we can place a squeeze in the field which acts as a temporary barrier to that trace. So that would be sort of a third potential thing I want to show within this trace is a well-known trace used in utilities for years. So we're going to do that we're going to use this tool of adding a barriers act as a squeeze as you say they can tap off this pay period the diamond feature placed there on the map. So I will go ahead and place that and then one more time will come in rerun the connected isolation trace again using the same start points that we use in our first traces. We see yet a third set of traces results shown on the map here. Drop those in between the two there and in fact we might even go in and change the coloration there are number three to be a slightly distinct color, say rose. See little bit more clearly you see now on the map i'll zoom out. The very first area which was the green area, very small we then of course marked valve is inoperable have found it to additional valves up here on the northern side. We placed a squeeze on this paper here and you can see that I got an intermediate point with those trace results here shown in the pink color. I can rearrange these anyway I want to bring up trace results number three on top. So that's our final list there, we're able to move forward that trace.

All works very easily and is using a combination of the Esri attribute assistant behind the scenes for the as-built analysis or the as-built editing side. Then we are utilizing a core out of the box trace from Esri available to be plugged in via simple Esri add-in. Which is a simple as double clicking on an add-in file that you download from Esri and making this trace available to a user on a desktop. So with that, that's my quick demonstration, I hope you found it as quick and as easy as I did. Check it out and thanks for listening.

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Skye Perry

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