This document discusses P&IDs (piping and instrumentation diagrams), process systems, and safety systems used in well flow management. It defines a P&ID as a detailed schematic that replicates a well test setup based on industry standards. P&IDs are important for standardizing best practices and specifying what to replicate in the field. The document outlines common undesirable events in well test processes like overpressure and leaks. It describes the causes, effects, and detectable abnormal conditions for these events. Primary and secondary protections are discussed to prevent overpressure and leaks. Feedback from training participants is solicited at the end.

1. ........P&ID, PROCESS AND SAFETY SYSTEMS
Nwogu, U.D.

2. ®Copyright Expro 2014 WELL FLOW MANAGEMENT
Ideal Situation
Global Training Course
P&ID, PROCESS AND SAFETY
SYSTEMS

3. ®Copyright Expro 2014 WELL FLOW MANAGEMENT
Content
Global Training Course
 P&ID
 Importance of P&ID
 Terms
 Process system
 Safety systems
 Feed back

4. P&ID
®Copyright Expro 2007 WELL FLOW MANAGEMENT
What is a P&ID?
It is detailed schematic that we use to replicate a well test
setup
It is based on API RP 14C
A P&ID is a diagram in the process industry which shows the
piping of the process together with the installed equipment
and instrumentation.

5. Importance of P&ID
 To standardize process of best practices
 Gives exactly what to replicate on the well test area /field site
®Copyright Expro 2007 WELL FLOW MANAGEMENT

6. ®Copyright Expro 2013 WELL FLOW MANAGEMENT
Relief
Valve
Oil Diverter
Manifold
Relief
Valve
PI
PI
Steam Heat
Exchanger
Test Separator
Surge
Tank
Diverter
PI
TI
Relief
Relief
Relief
Relief
Relief
PI S
PI
S
S S S
CI
CI
Plant &
Fittings
Plant &
Fittings
Plant &
Fittings
Plant &
Fittings
Instrumentation
& Fittings
Sampling
points
Manifold
Valves &
Fittings
Importance of P&ID

7. ®Copyright Expro 2014 WELL FLOW MANAGEMENT
Terms
Global Training Course
 Undesirable event
 Cause(s)
 Effect and detectable abnormal condition
 Primary & secondary protection

8. 2 Common Undesirable Events in WT
Process System
 Over pressure
 Leak
®Copyright Expro 2007 WELL FLOW MANAGEMENT

9. Causes of over pressure
Input > output
Restriction
Over flow or gas blow-by
Thermal expansion
®Copyright Expro 2007 WELL FLOW MANAGEMENT

10. Effects of Over Pressure and Detectable
Abnormal Condition
 Sudden rupture
 Confusion and panic
 Leak of HC
®Copyright Expro 2007 WELL FLOW MANAGEMENT

11. .
®Copyright Expro 2007 WELL FLOW MANAGEMENT

12. ®Copyright Expro 2014 WELL FLOW MANAGEMENT
Causes of Leaks
Global Training Course
 Corrosion
 Erosion
 Mechanical failure
 Excess temperature
 Rupture from over pressure
 Accidental damage from external forces

13. Effect of Leak and Detectable Abnormal
Condition
 Release of HC to environment
The detectable abnormal conditions are low pressure, backflow,
low level.
®Copyright Expro 2007 WELL FLOW MANAGEMENT

14. Feed back
Comments
Questions!!!
®Copyright Expro 2007 WELL FLOW MANAGEMENT