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Welcome to the eProcess
Demonstration video

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on the world's largest offshore facility
sand management system.

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This is system is located offshore Malaysia

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on a deep water production
spar facility.

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This facility comprises of 10 wellhead desanders

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located in the wellbay.

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They're shown here amongst
the piping and production equipment.

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There are 10 wellhead desanders,

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each designed for a 1500 pound rating,

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along with 600 liter accumulators

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also designed for a 1500 pound rating

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and those are the white, vertical vessels.

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First we will show the operation of

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emptying the accumulator after
they're filled with solids.

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There's a double block and bleed manual
gate valve system between the

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wellhead desander, located at the top
of this photo, the white vessel

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and the accumulator, located at the
bottom of this video.

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We now move to the bottom
of the accumulator vessel

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where the operator is going to empty
these produced solids from the accumulator,

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the white vessel shown on the right.

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This is a manual operation.

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These solids are emptied from
these accumulators

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multiple times per day

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into a rain header

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located at that white horizontal piping

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and flushed using firewater.

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That water transports all the solids

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to a common dewatering station
shown here.

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Due to the volume of solids
and volume of liquids,

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we use a two-stage dewatering station.

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The first uses urethane
drilling mud hydrocyclones

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to remove 90% of the free water.

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That water is then reported
to the closed drain system.

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The rest of the slurry, concentrated
solids and water drops into a

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dewatering bag shown on the front,

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an open dewatering bag,

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where the water that is decanted through

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is collected and returned
to the open drain system.

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The solids are retained in this
dewatering bag

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for subsequent disposal.

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The operator here is just
checking the operation

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to confirm solids are being removed,
and they are,

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and they're being collected into
this dewatering bag.

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Here we see water weeping through
the dewatering bag

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in a gravity drain situation.

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This water free flows easily
from these solids.

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The water is collected

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into an open skid pan located

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below the dewatering bags.

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That skid pan collects that free liquid

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which is majority water
and a little bit of oil,

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and that water is pumped by
a diaphragm pump

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into the open drain collection system.

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After dewatering is complete
from that first purging,

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the operator here is just doing
a quick manual gauge test

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to see how much solids are collected.

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Now, the volume of the bag
and the depth of the solids

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and the length of the purge cycle

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so we know approximately how much
solids are produced and separated.

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This can be automated
in any number of ways,

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but in this case, because of the open
dewatering system,

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it is done with manual gauging
by this operator.

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The rest of the video is speed up
a little bit to simplify the process.

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But once the bags are full,

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the dewatering bags are full,

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they are lifted from, in this case,
a lower deck

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up through multiple decks
to the top deck.

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You'll notice there are no free water

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free flowing from the bag,
it's all been completely drained,

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this sand is dry enough to stand on.

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The bag is lifted to the upper deck,

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it's taken to skip or a hopper,

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in this case the yellow apparatus here
where the bag will be set in;

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it'll be inverted using
the inversion strap,

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it'll be emptied into that bag

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and then the bag can be cleaned and reused.

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The operators here are removing
the shackles and slings

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and are going to connect the bottom
inversion strap, lift up the bag.

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You can see how shiny the solids are.

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That's not because of oil,
that's because the high amount of clay.

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In this case, from a carbonated reservoir.

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It's about 80% clay these solids,
very fine,

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averaging about 16 microns.

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The rest of it is sand.

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They will empty this bag,

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as mentioned, and they will
clean it up and reuse it.

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And you'll see the quality and quantity
of solids that are produced from this facility.

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This skip is taken offshore
for landfill disposal.

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The solids that are removed
and collected right here

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have about 0.25 weight percent
oil on dry solids.

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That's below the overboard discharge limit
of 1 weight percent oil on dry solids.