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Is your team working with Leapfrog Geo and Oasis montaj?

Come see data exchange workflows and how to collaborate and share your Geophysical and Geological modelling efforts.



Geoff Plastow
Senior Geophysicist – Seequent


23 min

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Video Transcript

(soft music)

<v Geoff>Good morning and good afternoon</v>

for everyone in attendance.

Thank you very much for joining.

Thank you for taking time out of your day

and joining us for this presentation.

Today we’re going to be looking at Interoperability Workflows

between Oasis montaj and Leapfrog Geo

enabled through Central.

So just as a quick introduction,

my name is Geoff Plastow and I’m a Senior Geophysicist

here at Seequent,

and I’m based in Vancouver, British Columbia.

The majority of my professional experience

is in mining exploration,

but I’ve worked on several civil

and an environmental projects

using geophysics to map voids, groundwater,

and contributions to earthquake hazard analysis.

As you can imagine from the title of this presentation,

we will be demonstrating some key workflows

and how to effectively collaborate on geoscience projects.

Today I’ll be working across three

Seequent software applications,

Leapfrog Geo, Oasis montaj and Central.

For those in the audience who are also using Target,

the same workflow is generally applicable.

So before we jump into the software,

I’m just going to provide you a quick introduction to Central.

Central is a cloud-based data and model management solution

that allows you and your team

to work from a single source of truth.

Through Central project stakeholders,

whether you’re an active modeler,

reviewing or third parties,

such as consultants or JV partners,

you’ll have access to the latest information

and intelligence.

This allows you to inform yourself on the next steps

for your geoscience project.

The key to Central is that it provides a means to work

effectively and efficiently in a multidisciplined team.

This way we can make a robust and holistic earth model.

Central enables us to instantly communicate

the latest results to our team.

So how does Central actually work?

Central is a cloud hosted solution hosted by Microsoft

and administered by us.

There’s three different access gateways that we can use

to access information on Central.

We have our desktop products,

which you might be familiar with, Leapfrog Geo Works,

Geothermal, Oasis montaj, Target and Growing.

This allows us to download

and publish models and data from Central.

We can integrate meshes and grids

and interact with the data room

and we can receive and reply to comments

from our colleagues.

There’s also the Central browser,

which is a desktop application.

This is a communication platform.

It allows us to actively engage with the modeling process,

we can look at annotations,

we can review and compare models,

and we can explore a variety of objects.

We’re going to be working at the Central browser today.

And then we have the Central portal,

which is a web application.

We can receive and set real time notifications.

We can download and publish data to the data room

and we can manage our users

to see who can access information in our projects.

The workflow I’d like to demonstrate today

is more or less summarized by this diagram.

And it’s how Central can be used

in an iterative modeling process.

The data we’re looking at today

is an early stage geological model

developed in Leapfrog Geo.

Here, we can take various types of spatial

and numerical data,

things like drilling, mapping, arsenic values.

And we can develop an initial interpretation of our geology.

These findings can be published

and communicated through Central.

Here, a geophysicist can interact with this data

and export the required files or hypotheses

and work with them in Oasis montaj

and perform geophysical modeling.

Then in turn publish these results back to Central.

The idea here is rinse and repeat

to develop an iterative

and more communicative modeling process.

So now, I’m going to jump into the software and do a live demo.

So we’re going to begin our journey in the Central browser.

On the left-hand side of the screen,

you can see all of the Central servers

that you have available to your organization.

Now, these are connected to your Seequent ID.

So when you sign in with your Seequent ID

to the Central browser,

you will automatically be authenticated to the servers

and you’ll see what projects

you have available to you as well.

In this case, I’m going to be working

on this Mt Palmer project.

I can simply click on it to open the history of the project.

On the left-hand side of the screen,

we see a history of the product revisions,

the project stage, who was published it and some comments.

On the right-hand side of the screen,

we can look at the revisions and we can see metadata.

We can see the various objects inside of the model.

We can see some of the metadata

and comments that go along with it.

We can click on some of the drilling information

to see the number of colors, the drilling length,

and some information about arsenic and gold

that has been logged in those drill holes.

We can also see an ongoing conversation

between myself and my colleague, Stephen Donovan.

So let’s take a look and I’m going to hover over

and click on one of these thumbnails.

And it’s going to open up the project in a seen view.

As I mentioned earlier,

this is an early stage exploration project.

We’re looking for a banded iron formation,

and we’ve also performed a small geophysical survey.

And what we’re looking at now are the geophysical results.

We see the areas of a high magnetic intensity

in pink and red,

and the areas of a low magnetic intensity in blue.

So we’ve identified this structure

and we’ve actually drilled it eight times.

And my colleague, Stephen has come up with an addition,

an initial hypothesis about some

of the subsurface structure.

The first hypothesis is that we have a fault

and the banded iron formation is in this fault structure.

My colleague Stephen has also indicated that

he’s also modeled another potential hypothesis

hypothesis, number two,

that he’s modeled and anticline structure.

Now, both of these models, geological models

fit the drilling results.

The reality is we’ve only drilled eight holes,

so we don’t have a great understanding of the structure.

Is it this dipping structure or is it this anticline model?

And he’s asking me,

“Hey Geoff, can you incorporate

some of the geophysics here

to perhaps guide some of our next steps

in our drilling program?”

So I can simply click reply here.

And if I want, I can use the @ symbol

and I can text even in a comment.

I can say, yes, I’ll take a look

or I can be a little bit more descriptive in my response.

So Stephen will be notified

that I’m now taking a look at his project.

The first thing I’m going to do as a geophysicist

is I’m going to look at the two,

the two structural models that we can perform

geo-physical modeling on.

I’m going to right click

and I’m going to simply export this model.

I’m primarily interested in the banded iron formation

that he has modeled.

And I select this model and I select this

as our anticline model.

And I say export, and I’m just going to export it.

And I can repeat this exact same process

for our dipping fault model.

So I can simply right click on it

and export it as a Leapfrog model file.

There’s a number of other formats that we can export as

in this case,

I’m comfortable using Leapfrog model file formats.

So once I’ve exported these two, these two meshes,

I’m going to jump into Oasis montaj.

So here we are inside of Oasis montaj,

I’m visualizing the magnetic data

that we collected over the survey area,

and what I’m going to do now

is I’m going to import the two different

geological hypotheses.

First, I’m going to import our dipping plate model,

and I’m just assigning a geographical projection to that.

So here’s our dipping plate model,

and next I’m going to import our anticline model.

Now, if you haven’t used Oasis montaj before,

Oasis montaj is a geoscience platform

that allows you to integrate all types of geoscience data.

In this case,

we’re going to be working with geophysical data

and we’re going to perform some geo-physical modeling

to test these different hypothesis.

We’re going to perform a geo-physical forward model

of the anticline model.

And then we’re going to perform a forward model

of this dipping plate model.

Now, what is the forward modeling process?

Well, the forward modeling process

is when we know what is in the ground.

In this case, we know we have an anticline or dipping model.

We have these two hypotheses,

we assign a physical rock property to it,

and then we calculate what the magnetic response looks like.

So what we’re going to do is we’re going to calculate

the forward response from both of these,

and then compare it with our data.

And we’re going to just make a qualitative assessment

as to which one of these

most matches the chief physical data.

So I’ve already gone ahead and I’ve created a geo-physical

modeling space inside of VOXI,

and the extensive of this is our project area.

The next thing I’m going to do is I’m going to add

a starting model constraint.

So I click create and build a model.

I can, I’m going to start off with the dipping plate model.

I’m going to select a starting model.

The surface I’m going to use,

I’m going to use the dipping plate first.

When I do this again,

I’m going to use the anticline surface.

So outside of the area,

I’m going to assign zero magnetic susceptibility.

Inside of the dipping plate.

I’m going to assign a magnetic susceptibility of one.

We know this from drilling.

We have some ideas of what some of the physical

rock properties are.

When I’m ready, I can click okay.

And it will create a voxel or geo-physical block model

that represents this dipping prism.

If I want, I can use the clipping tool in Oasis montaj

to see that it is in fact, the dipping plate.

And once I’m ready,

I can go ahead and run the forward model.

To do that, I can just say, run forward model.

The nice thing about VOXI is that it uses cloud computing.

It uses Microsoft Azure to do these calculations.

So the geophysical modeling process

is quite computationally intensive.

So by using the Cloud, we get the result much faster.

And also it doesn’t use any of my computer resources.

Now for the sake of this webinar,

I’ve already done the forward calculation

for both the dipping prism and the anticline model.

So let’s take a look at both of these.

This here is the forward calculated response

of the anticline model.

And on the right-hand side of the screen,

I have the forward calculating response

from the dipping prism.

Now, if we compare this to our magnetic data

that we acquired over the project area,

we can simply make a qualitative assessment.

Does our magnetic data look like the anticline model?

Well, perhaps we have this broad structure and yes,

it tapers a little bit to the south,

but let’s compare our acquired magnetic data

to the forward calculated response from the dipping prism.

Again, we see this broad magnetic response tapering.

Yes, we see some of the highs where we have our highs.

So from a qualitative point of view,

we can make an initial assessment and say,

geophysically physically speaking

this dipping prism seems to be more geophysically

plausible at this stage.

So that’s great.

We’ve already done a forward calculation

and we’re leaning towards one of the hypotheses

and we can perhaps make some decisions

about how we want to do our next stages of drilling.

So to continue on this process,

we can now perform a geophysical inversion.

So the inversion is the inverse process

of the forward calculation.

This means we’re going to take our geophysical data

and we are going to produce a block model or a voxel

of physical rock properties.

So we are going to move forward with this dipping prism.

And instead of running a forward model,

I’m going to run an inversion.

And again, this data is uploaded to the cloud.

The calculations will happen in the cloud,

so my computer is free and it’s not being bogged down

by numerical computations and calculations.

Now, again, for the sake of this webinar,

I’ve gone ahead and performed the inversion

and I’ve produced several sections

through this geophysical inversion.

And we also have a voxel which represents the distribution

of magnetic susceptibility in the subsurface.

This is great.

Now, how can I share these results with my colleague?

How can I share these back with Stephen?

Well, there’s a few ways we can do this,

in the data services menu

we can simply upload these results to Central.

The first thing I’m doing is I’m just ensuring I’m connected

to the correct Central server.

I’m going to select the project

that I want to upload my data to.

We have the option of uploading our data as OMF,

OMF is an acronym that stands for Open Mining Format.

This is an open file exchange format

that is not directly linked to Seequent software.

It is an open format that can be digested by many software

applications and allows you to transfer your data freely.

So I’m going to select my constraints, susceptibility voxel,

and I’m going to upload it as an OMF format.

I can click okay.

And the export and upload process will start.

This may take a second,

depending on my internet connection speed.

So now it’s uploading this result to the Central server

and it has been uploaded.

Now I’ve also created some section grids.

If I want, I can simply go back to the data services menu,

or I can select these grids from the Project Explorer.

I can say, right click on the grid I want

and say upload to Central.

So here I can upload my individual grids,

I can select multiple grids if I want.

Here I’ve created three section grids,

and I’m going to say, okay,

and again, these are going to upload to our Central project.

So what I’m going to do now,

while this is just finishing uploading,

I’m going to jump into Leapfrog Geo.

So here we are at Leapfrog Geo.

We have our magnetic survey results,

and we can go ahead and now begin to import these results,

these geophysical inversion results into Leapfrog Geo.

So I could go to the geophysical data folder, right click,

and we have two options.

We can import the grid as a standalone file

in case it just lives on your hard drive.

In this case, I’m going to import these 2D grids from Central.

I’m going to select my Central project.

I can see all of the branches and the geophysical data

that’s already been downloaded.

If I jump into files into the data room,

I can see that these are the files that we’ve updated.

So I can select these grids and say, import.

This process may just take a second,

depending on your internet connection speed.

But once the download is finished, the grid is available

and can be dragged into your model space.

What’s really great is that the greatest, correctly oriented

it’s correctly geo-referenced,

and the color distribution that I used in Oasis montaj

is transferred to Central

and then down into Leapfrog Geo.

So we don’t have to worry about any discrepancies

about the way things look and feel.

Now, what about the geophysical block model,

the voxel we created.

Again, if I want I can import the OMF as a direct file

from my hard drive,

or I can import it from Central.

Again, I’m going to pick the project I want,

I’m going to select the OMF file of interest,

going to import this.

Again, this is just processing

and again, I can just drag it into my model space.

Now, one of the first things that we see is yes,

perhaps the color distribution of the OMF file

did not carry over.

Well, a quick work around for that is we can take our grid,

our grid object,

and we can just export the color map for this.

So I’m going to call this the magnetic susceptibility

color map.

And once that has been created,

we can go ahead and import this, import this color map

from the gridded section,

and then we can now apply it to our voxel data.

And what’s great is now we have our geophysical data,

our sections, and our geophysical volumes,

physical rock properties inside of Leapfrog Geo.

And we can continue to iterate on this modeling cycle.

We can now continue to integrate this

into our geological model

and perhaps make decisions about how we do our drilling.

So just jumping back into PowerPoint,

I just wanted to reiterate that we can use Central,

Leapfrog Geo and Oasis montaj and Target

in an iterative, collaborative, modeling process.

We can use it as a communication tool to effectively share,

track and collaborate our changes

through the modeling process.

So you can see how the next set of drilling results again,

we can insert these into the feedback,

recalculated geo-physical model,

and then provide that back to the geoscience team.

So this concludes my demonstration and presentation

this morning.

If we have…

We have a few minutes for any questions that you might have.

<v Stephen>Yeah, hi.</v>

My name’s Stephen Donovan as well,

so I’m going to be helping Jeff with the questions.

If you have anything, please enter that into the chat now,

and we’ll be happy to feel both.

We did have one question here around supported file types.

Can you speak to what kind of data you can transfer

between Oasis and Leapfrog, Geoff?

<v Geoff>Yeah, that’s a really good question, Stephen.</v>

So I mentioned Oasis montaj and Target itself.

I can work with them for such a wide variety of data sets.

In this example, I used geophysical data

and I did some geophysical modeling,

but this whole process could be done with geochemical data

or even surficial soil sampling, XRF data, solidity levels,

resistivity data.

So there’s really no limitation on numerical data

that can be shared through Central

and then integrated into a Leapfrog project.

<v Stephen>Great, and then what about licensing costs?</v>

Are there any license costs

associated with connecting Oasis montaj to Central?

<v Geoff>That’s a good question.</v>

So at this time,

if your organization has a Central server,

there is no associated cost with connecting Oasis montaj

or Target to that server.

And that will allow you to access that information

in the exact same way that you saw today.

I can publish models,

I can use the Central browser to view and export

models and meshes,

and then pull those into Target in Oasis montaj

and be part of the iterative model,

my iterative modeling cycle.

<v Stephen>That’s fantastic.</v>

So we don’t see any other questions coming up.

If you do have any feel free to type them in there,

otherwise back over to you, Geoff to wrap up.

<v Geoff>Yeah, sure.</v>

I just want to thank everyone for their time today.

We appreciate you taking the time out of the day

to watch the presentation.

If you have any questions about what you saw today,

feel free to reach out to myself,

my email address is here on the screen.

And if you’re interested in a trial or demo

of Leapfrog Geo, Oasis montaj or Central,

we can certainly assist with that as well.

So thank you very much for your time.

Bye for now.

(soft music)