Separator

The Separator

The gas line :- To increase or decrease the orifice (run the orifice) you need to do the following
1/ open the equalizer and open the gate then adjust from the carrier to make it in the upper chamber or down chamber finally open the upper chamber valve then close all previous valves inverse gate valve and equalizer. Gas line can go to the production line and go for burner line by a diverter in the gas line in the Separator
The oil line:- I can adjust the level from the lcv box to make the level stable and control form the pcv only
The Separator can be three phases (water, oil and water) or two phases (liquid and gas)

Why do we have two different sizes of gas lines?

For low flow rate it is only suitable to use the smaller line because the bigger line of PCV will not be able to maintain a stable pressure inside separator.
For high flow rate it is only suitable to use the bigger line because if you flow through the smaller line would get turbulent flow which would give inaccurate flow measurement.

What type of valves do we use in lcvs and pcvs?

Throttling valves.

What is the pressure setting for the relief valve on separator and surge tank?

For separator the pressure setting of the relief valves are 100% and 105%. For surge tanks the pressure setting of the relief valve is 100%.

diagram of gas tubes

Check the Layout

What is the sight glass types?

Transparent, refractive and magnetic

Explain separator inner parts.

Deflector plates (Inlet configuration): This plate is located in the front of the inlet it causes a rapid change in direction and velocity of the fluids, forcing the liquid to fall to bottom of the vessel. The deflector plate is responsible for the initial gross separation of liquid and gas.
Coalescing plates (Intermediate Configuration): These plates are arranged longitudinally in an invert V-shape in the upper part of the separator, the liquid droplet in the gas hit the plates and stick to them, as more gas through the plates, more droplets coalesce to form bigger drops that fall to bottom of the vessel.
Weir plate (Intermediate Configuration): This plate located at the bottom of the separator, divided the separator into two compartments (Oil and Water) provided that the water level is controlled, it only permits oil to overflow into the oil compartment.
Foam breaker (Intermediate Configuration): This piece of equipment is made of wire mesh, like the mist extractor. It prevents oil particles in the foam (comprised of oil and gas) from passing through the separator and being carried away with the gas.
Mist extractor (Outlet configuration): This piece of equipment is composed of a mass of wire netting. Before leaving the separator, the gas stream passes through the mist extractor, causing the tiny oil droplets remaining in the gas to fall down.
Vortex breaker (Outlet configuration): These breakers are located on the oil and water outlets. their function is to break the vortex effect that can occur when oil and water exit the separator from their respective outlets. the vortex breakers prevent any gas from being sucked away with the liquids.

What is the difference between junior and senior Daniel?

For Junior Daniel It has a single chamber which makes it impossible to change the orifice size when you are flowing through gas line without stopping the operation.
For senior Daniel it has two chambers which makes possible to change the orifice plate without interrupting the operation.

What is the meter factor?

The ratio between the tank volume/reading divided by the meter reading.

What are the flow meter ranges?

For 1 inch 170-1700 or 1300 bbl/day
For 2 inch 1300-13000 bbly/day

What are straightening vanes?

They are a number of tubes placed in the gas line to streamline the flow before it enters the Daniel box in order to obtain laminar flow to be able to measure the gas rate.

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How to change orifice plate

open the differential equalizer
open the equalizer valve
open the gate valve
make the plate up
close the gate valve
close the equalizer
bleed the uppr chamber
get the orifice plate out of the daniel boxand change it

How to Run orifice plate

after putting the orifice plate
close the upper chamber bleeder
open the equalizer
open the gate valve
make the plate down
close the gate
close the equalizer
close the differential equalizer
check the differential sensor readings
start flow test

What is the different between 3" & 6" gas line

comparion	3" gas line	6" gas line
the ID	2.901"	5.772"
back pressure	high	low

How to change between 3" & 6" gas line in fekete?

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How to dumb tank , separator and flush the line

to bleed oil in the Tank
1. prepare the pump
2. prepare the burner
3. pressurize the tank with (40-60) psi _{we can get that pressure from the separator through pipe or through bleeder of the daniel or bleeder of the choke}
4. start pumping oil to the sealine
5. take care of the air lock
dumbing water in the tank
1. line up from tank to overboard
2. you can pressurize the tank with afew gas to push the water
3. always check the return overboard
bleed and dumb separator
1. close the pcv to keep good pressure inside separator to push the level
2. open 3" oil line
3. you can open LCV full
4. urn the remaining gas in the separator
flush the line
1. line up from pumping to our line until sealine
2. start flush and check the return always
3. once the return is clear water stop flushing and secure the line

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