A simple explanation from the guys in training

The Accumulator Unit is one of the most important and dangerous systems in the prime and any misunderstanding of how it works can result in the loss of well control. Although its appearance is complicated due to the many lines, counters and bombs, its principle is clear and logical when it comes to understanding the basics.

The basic function
The Accumulator Unit is a backup hydraulic power system responsible for:
Open and Close BOP Rams and Prevent Cancel
Working on a power outage in the frist
Ensure complete control of the well and protect lives

The main ingredients
Tanque
It has hydraulic oil added:
Metanol
Glycol
Stay hydrated and prevent freezing in all weather conditions.

Pumping system
Electric pump (main source)
Air Powered Bomb (Backup)
Having two pumping sources checks:
Highest level of security
Access speed for press play
Continuity of the system in case of emergency

Bottles of accumulation
Loaded with nitrogen gas
Preload pressure (preload pressure) = 1000 psi
Why the nitrogen ?
High pressure
Steady in high and low temperatures
Hydraulic oil reactive
Nota:
There’s about 200 psi of unusable fluid.

Press play
Oil pressure is rising to 3000 psi
Upon reaching this pressure, the pumps automatically stop
System is split into two main lines
First line: annual line
Responsible for executing the Preventer Annul
Reduce pressure from 3000 psi to 500-1500 psi
Checking in through:
Pressure Regulator (A)
Annual pressure gauge
The reason :
Cord rubber closes in different sizes of pipes
The transmission is being channeled using:
4-way valve
Close line
Open line
Line of Return
The second line: Manifold Line
Commissioned to Run:
Pipe Bouquets
Blind / Blind Rams
Rams variables
HCR valve
Operating pressure = 1500 psi
Being controlled by:
Pressure Regulator (B)
Manifold Pressure Gauge

Basic Enumerators
Anyone working at Prim should know this well:
Accumulator pressure → 3000 psi
Manifold pressure → 1500 psi
Annual pressure → 500-1500 psi
Air pressure → 120 psi

Bypass Valve (special case)
Available next to collector regulator
Opening 3000 psi goes directly to the Manifold
Used to run a shear ram to cut pipe

the conclusion
Understanding Accumulating Unit is not a luxury,
But an essential necessity for every hole worker.

Proper knowledge means: greater security
Fastest response
Complete control during emergency