Transcript HIPPS ppt_GET 2013 - kishorekaruppaswamy

Why HIPPS ??
• We have 600# (high pressure bearing) pipeline
from well pads till production header.
• After that, we have 150# (low pressure bearing)
pipeline due to economy & usage purpose.
• Due to some abnormality, if high pressure
reaches 150# pipeline, then it may cause
explosion to pipeline & hence vessels in trains
area.
Onsite Normal Operation
(Without HIPPS):
107
psi
FLOW
High pressure Bearing Pipeline
Low pressure Bearing Pipeline
If Pressure Increases
136
psi
High Pressure
FLOW
High pressure Bearing Pipeline
Low pressure Bearing Pipeline
WHAT IS HIPPS???
HIGH INTEGRITY
PRESSURE PROTECTION SYSTEM
HIGH INTEGRITY
 Using 3 transmitters in downstream (works on 2oo3
logic).
PRESSURE PROTECTION
Safety Integrity Level – 3
High pressure from formation
Back pressure from trains
Pipe rating ( 600# to 150# )
STANDARD- International Electro Technical
Commission (IEC)
Functional Safety of Electrical/Electronic/Programmable Electronic
Safety-related Systems
IEC 61508 and IEC 61511 standards for design, implementation and
management of safety systems.
SIL (Safety Integrity Level ) - is a measurement of performance
required.
SIL 3 In accordance with IEC61508 and IEC61511
Low demand PFD-Frequency of demand of operation is < 1 per year
0.001-0.0001
Onsite Normal Operation (With
HIPPS):
LOGIC
SOLVER
107
PSI
1
107
PSI
107
PSI
107
PSI
If pressure increases:
LOGIC
SOLVER
136
PSI
1
136
PSI
136
PSI
136
PSI
LOGIC
SOLVER
1
136
PSI
136
PSI
136
PSI
136
PSI
LIST OF INSTRUMENTS
LIST OF INSTRUMENTS
TRANSMITTERS
 PSIT-2011 & 2021 for Upstream
 PSIT-2010 A/B/C & 2020 A/B/C for
Downstream
 PSIT-201 & 202 for Lube Oil
(All PSIT’s are of ROSEMOUNT and Model of series 3051S)
PSIT-201 & 202
 Set Point – 1800 to 2700 psi
 Purpose  To start/stop the pump
PSIT
SPEIFICATIONS
Type
Diaphragm Seal type
Maximum Temperature
80ºC
Minimum Temperature
-40ºC
Diaphragm Material
Hasteloy C 276
Fill Fluid Material
Silicon
Output Signal Type
4-20mA
Digital Communication std
HART
Trip SP
135psi
XSV
Specifications
Type
Ball Valve (Make- Valve
Technologies)
Size
30”
Opening time
Upto 30 minutes
Closing time
Upto 5 seconds
Design Pressure
91.7 bar
Design Temperature
130ºC
Failure Action
Fail to close
Hydraulic Oil used
ISOVG46
TRIPS FOR HIPPS VALVES:
1. Downstream pressure of HIPPS: 2oo3 logic.
2. When the pressure of air purge to HIPPS panel falls
below 0.15 mm of water column (gauge available in
field).
3. Position feedback of the HIPPS valve (any one) not
available when valves are in OPEN condition: After a
time delay of 40 min, both the HIPPS valves will close.
START-UP CONDITIONS
1. Pressure difference between upstream &
downstream PSIT must not exceed 2.5 bar.
2. Upstream pressure should not exceed 100psi.
LOGIC OF 2oo3
BASIC LADDER LOGIC OF 2oo3
HYDRAULIC DIAGRAM
MOTOR
DETAILS
Make
Crompton Greaves
Voltage
415v +/- 6%
Type
3ɸ AC Squirrel Cage Induction
Motor
Full Load Current
3.25 A
Full Load Speed
1415 RPM
CONTINUE:
• 1300 PSI PRESSURE IS SUFFICIENT FOR KEEPING THE VALVE
IN OPEN POSITION.
• Pump stops at 2700 PSI.
• If the circuit hydraulic pressure is
• < 1800 PSI - ONE AMONG THE TWO PUMPS WILL START.
• < 1400 PSI THEN BOTH THE RUNS WILL START
AUTOMATICALLY.
PLC
•We have S7 400 PLC for HIPPS package & S7 200
PLC for hydraulic circuit.
•We are using two PLC’s. One for each stream for
production redundancy.
PLC I/O’s
AI
DI
DO
PSIT-2011/2021
Limit switch of XSV
XSY 2010 A1-1/2, XSY 2010
B1-1/2, XSY 2010 A1-1/ 2,
XSY 2010- B2- 1/2
PSIT-2010 A/B/C
(ZSO/ZSC- 2010A/2010B)
XSY 2020 A1-1/2, XSY 2020
B1-1/2, XSY 2020 A1-1/ 2,
XSY 2020- B2- 1/2
PSIT-2020 A/B/C
(ZSO/ZSC-2020A/2020B)
Trip lamp, Fault lamp
PSIT-201/202
Trip RESET, Fault RESET
Specifications of S7 400 PLC:
1. Modular PLC.
2. Handle large module.
3. Used where high processing speed &
deterministic response time is required.
4. Used for data intensive tasks (data
parallelism).
5. Have additional line monitoring diagnostic
feature- generates alarm when wire breaks or
short circuit.
Specifications of S7 200 PLC:
1. Shoebox PLC
2. Less Memory.
3. Handle small module
4. Cost effective.
ARCHITECTURE
PLC PURGING SYSTEM
DETAILS
Make
Pepperl + Fuchs
Model
3003-LPS-C1-YZ-VM
Supply
Instrument Air
Overpressure Protection
Breather
Range
5.5-8.3 bar
Temp. Range
-29 to 50°C
Purpose
To remove & prevent
flammable gas or vapor
accumulation.
Note: Before opening the HIPPS panel, the purge pressure low trip logic should be
BYPASSED by making the trip BYPASS switch “ON”. (switch available near HIPPS
panel).
Cause & Effect
THANK YOU