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this is Mike Gidding from third i g
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science and we're going back to the well
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section window today to look at ghost
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curves which is another thing that I
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always forget how to do unless I'm doing
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it
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regularly so what we've got here is two
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Wells the same two Wells that we used to
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generate these lithologies in a previous
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video and I've put in a set of tops
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related to the coal measures that you
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see in the um in the well section and
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what we're going to try and do is move
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those tops across to this unpopulated
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well over here so to do that what we do
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is we press on the ghost curve
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button and then you can see that there
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are a number of options here there's a
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single log ghost curve a multi log
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single track ghost curve and a multi-
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log multirack ghost curve so let's keep
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it simple to start with and we'll go
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down to C1 and we'll choose the single
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ghost curve and all you do here is you
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drag across the interface that you want
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to
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correlate and then we have a curve which
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we can
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drag across and if we line it up with
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that density
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Spike we might be happy with that
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now there's an option here to drop the
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ghost
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markers by clicking this button or
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hitting shift G the problem with that is
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that we will drop all the markers that
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we have uh dragged across and you can
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see here that we've picked up this
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Barracuda Shale so to get rid of that we
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hover over it till we get the double
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arrow and we hold down shift and click
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it and then it's turned off now we can
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drop the ghost markers and turn off our
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ghost log and we can see that we've got
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something that's in pretty much the
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right spot we might want to move it a
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little bit up or down but it's pretty
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good okay so that's the simplest way to
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do
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it next we're going to try and get these
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bottom three here C2 to C4 in place so
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to do that we're going to press the
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ghost curve again and this time we'll
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choose the multi log multirack option
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and we can go through like
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so and if we keep an eye on what's going
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on over here it's probably these three
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here and we can grab the curve and drag
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all of the curves
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so I like to keep a little bit of space
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so that I can kind of get this in the
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right position so I might pop that
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bottom one in the right spot and then we
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can either change the elevation of the
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whole thing or the height of the whole
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thing or we can actually grab any one of
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these markers and drag it into what we
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think is the right
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spot and if we're happy with that we can
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then press the drop ghost markers
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option turn off The Ghost and inspect to
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see whether we could do any better maybe
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a little bit
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like
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so okay um let's do the top section
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now another
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ghost and we'll go from
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[Music]
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here down to
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there and again we grab the curve drag
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it
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across try and figure out where we
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belong
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and let's let's line up
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on the C10 and 11 C 10 and
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[Music]
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N okay and then we need to move
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up a little
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bit with
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our other markers so that one's probably
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coming to there and then the one below
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it would be coming down to here
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okay and then the C10 is okay the C9
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comes up a little
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bit and then we've got this one here
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which would come down to
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here and then we've got a bit of a messy
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situation in here and I don't want to
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get that wrong so what I'm going to do
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is I'm going to hold down again the
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shift key and I'm going to turn those
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markers
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off and then I'm going to accept the
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rest
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and turn off the ghost
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curve just do a bit of tidying up if I
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need
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to everything else looks okay and then
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we've just got this little section in
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the middle so let's zoom in on that a
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little
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bit and we'll try again another ghost
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curve drag it across
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and now it should be a little bit easier
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for us to see what's going
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on so we got three coals there and three
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coals
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there happy with
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that
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and this one we might drag up to
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here and this one we can drag up to
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here and let's see what
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happens okay so that's given us a pretty
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good
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result it can get a little bit
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confusing when you're trying to see
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through one set of logs to another so
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what I would suggest is that before you
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start this exercise you go up to your
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home
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Tab and go to clone
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window you make an exact copy of that
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window and then move it to a another tab
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grip on your other screen then you can
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look at both of these Wells without
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being encumbered by the ghost
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overlay and compare that with what
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you're getting with the ghost overlay in
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that way you'll be able to see both
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cleanly and with the overlay and
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hopefully that will help you unravel any
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complexities okay okay so that's all I
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really wanted to say today so thanks for
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listening and if you have any questions
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please just visit my website
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3.com and um drop me a comment or a
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question if need be thanks a lot
