oil and gas solutions v2
TRANSCRIPT
Background Blowout Preventer (BOP) stack is a tower of gates
and valves that is used during an oil well drilling stage.
BOP stack prevents blow out of oil from the borehole due to pressure variations during drilling.
BOP stack includes various technologies including:
Annular Preventers,
Shear RAMs.
BOP stack preventers’ movement is hydraulically controlled.
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BOP Stack
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Annular
Dual Shear RAM
HydraulicAccumulators
HydraulicPODS
Hydraulic Fluid Control
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Types of Contaminants
Solid Particles
Formed as part of normal operation
Effects: streaks, scraping, ceasing.
Water
Present as moisture and condensation.
Effects: oxidation and rust.
Air & Gases
Effects: higher viscosity, micro slippage
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Contamination Leads to Lubricant Breakdown
Avoid Detrimental Situations
Oil oxidation grows rapidly
TAN increases
TBN decreases
Oil additive depletes
Varnish development increases
Sludge deposit increases
Machine is unprotected
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Remove Contaminants & Stop Oil Breakdown
0
2
4
6
8
10
12
T.A.N
No water, no metal - T.A.N. after 3500 hrs
Water + metals - T.A.N. after 100 hrs
Oil oxidation
T.A
.N.
Th
e A
cid
Nu
mb
er (
hyd
rau
lic)
0.17
11.8
Hydraulic Oil Samples
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Maintaining Clean Oil Ensures Proper BOP Operation Each Time
Sheared Drilling Pipe
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Shear Blade
Actu
al P
ipe S
heared
by a
RA
MShear Blade