6 - Planning the RBI Assessment

Question 1

Getting Started:

,,,,,determine the scope and the priorities for an RBI assessment

Answer 1

owner-user

Question 2

Getting Started:
The organizing process of ,,,,,/, ,,,,,, and ,,,,,, improves the efficiency and effectiveness of conducting the RBI assessment and its end-results in managing risk.

Answer 2

aligning priorities
screening risks
identifying boundaries

Question 3

Getting Started:

An RBI assessment is a team-based process that requires proper skills and knowledge from ,,,,,

Answer 3

multiple disciplines

Question 4

Reduce Costs:
Reducing inspection costs is usually not the primary objective of an RBI assessment, but it is frequently a side effect of ,,,,,

Answer 4

optimization

Question 5

Safety and Environmental Management Requirements:
RBI provides a ,,,,,, to guide a user in the sele ,,,,,,, ction of ,,,,,, to be included and the and extent of inspection activities to be conducted to meet performance objectives.

Answer 5

systematic method
equipment items
frequency, scope,

Question 6

Facilities End of Life Strategies:
It is important to revisit the RBI assessment if the remaining plant life is ,,,,, after the remaining life strategy has been developed and implemented.

Answer 6

extended

Question 7

Facilities End of Life Strategies:
The end of life case for plant operation is about gaining the ,,,,,,without undue personnel, environmental, or financial risk

Answer 7

maximum remaining economic benefit

from an asset

Question 8

Facilities End of Life Strategies:
End of life strategies focus the inspection efforts directly on .,,,,,, areas where the inspections will provide a reduction of risk during the remaining life of the plant

Answer 8

high-risk area

Question 9

Facilities End of Life Strategies:

Inspection activities that do not impact risk during the remaining life are usually ,,,, or ,,,,,

Answer 9

eliminated or reduced

Question 10

Initial Screening :
The screening process focuses the analysis on the most important group of equipment items so that ,,,,and ,,,, are more effectively utilized.

Answer 10

time

sources

Question 11

Establish Physical Boundaries of an RBI Assessment:

Typically, RBI is done on ,,,, of equipment (e.g. an entire process unit) rather than on a single component.

Answer 11

multiple pieces

Question 12

Facilities Screening:

Screening at the facility level may be done by a ,,,,, RBI assessment

Answer 12

simplified qualitative

Question 13

Facilities Screening:

Examples of key questions to answer at the facility level are listed as;

Answer 13

1- Facility located in a regulatory jurisdiction that will
accept modifications to statutory inspection ??
2- management of the facility willing to invest in the
resources ??
3- Facility have sufficient resources and expertise
available to conduct the RBI assessment

Question 14

Process Units Screening :
If the scope of the RBI assessment is a multi-unit facility, the first step in the application of RBI is screening of entire process units to ,,,,,, risk

Answer 14

rank relative

Question 15

Process Units Screening :

for a process unit , key questions to answer at the process unit level are;

Answer 15

1- process unit have a significant impact on the operation of the facility ???
2- significant risks involved in the operation of the process unit ???

Question 16

Systems Within Process Unit Screening:
It is often advantageous to group equipment within a process unit into systems, loops, or circuits where common ,,,,, exist based on process chemistry pressure and temperature, metallurgy, equipment design, and operating history.

Answer 16

environmental operating conditions

Question 17

Systems Within Process Unit Screening:
In case the risks of each piece of equipment in the system show a common sensitivity to changes in process conditions, then a screening can establish ,,,,, with common variables and ranges for the entire system.

Answer 17

one single IOW

Question 18

Systems Within Process Unit Screening:
,,,, or ,,,,, diagrams for the unit may be used to identify the systems including information about metallurgy, process conditions, credible damage mechanisms, and historical problems.28 API RECOMMENDED PRACTICE 580

Answer 18

Block flow or process flow

Question 19

Systems Within Process Unit Screening:
When a process unit is identified for an RBI assessment and overall optimization is the goal, it is usually best to include ,,,,, within the unit

Answer 19

all systems

Question 20

Equipment Item Screening:

In most plants, a large percentage of the total unit risk will be concentrated in a ,,,,, of the equipment items

Answer 20

relatively small percentage

Question 21

Utilities, Emergency and Off-plot Systems:
When emergency systems (e.g. flare systems, emergency shutdown systems) are included in the RBI assessment, their service conditions during both ,,,, and ,,,, should be considered

Answer 21

routine operations

upset

Question 22

Establish Operating Boundaries :

The purpose of establishing operational boundaries is to identify ,,,,,,that may impact deterioration

Answer 22

key process parameters

Question 23

Establish Operating Boundaries :
The RBI assessment normally includes review of both
,,,,, and ,,,, for normal operating conditions.

Answer 23

POF and COF

Question 24

Establish Operating Boundaries :
The operating conditions, including any ,,,,,analysis, used for the RBI assessment should be recorded as the operating limits for the assessment.

Answer 24

sensitivity

Question 25

Establish Operating Boundaries :
It is vital to establish and monitor key process parameters that may affect equipment integrity to determine whether ,,,,,

Answer 25

operations are maintained within boundaries (i.e. IOWs).

Question 26

Start-up and Shutdown :
,,,,, during start-up and shutdown can have a significant effect on the risk of a plant especially when they are more severe (likely to cause accelerated deterioration) than normal conditions, and as such should be considered for all equipment covered by the RBI assessment

Answer 26

Process conditions

Question 27

Start-up and Shutdown :
In case of ,,,,, corrosion ) , process condition during start-up and shutdown can have a significant effect on the risk of a plant

Answer 27

polythionic acid stress corrosion cracking (PASCC)

Question 28

Start-up and Shutdown :
,,,, lines are often included within the process piping and their service conditions during start-up and ,,,, should be considered.

Answer 28

Start-up

subsequent operation

Question 29

Normal, Upset, and Cyclic Operation:
The normal operating conditions may be most easily provided if there is a ,,,, or ,,,,, available for the plant or process unit

Answer 29

process flow model

mass balance

Question 30

Normal, Upset, and Cyclic Operation:

Normal operating conditions found on documentation should be verified by ,,,,, personnel

Answer 30

unit operations

Question 31

Normal, Upset, and Cyclic Operation:
The RBI assessment on systems with cyclic operation, such as ,,, systems, should consider the complete cyclic range of conditions

Answer 31

reactor regeneration

Question 32

Normal, Upset, and Cyclic Operation:

Examples of equipment under cyclic or intermittent conditions at higher temp are;

Answer 32

• pressure swing absorption vessels,
• catalytic reforming unit regeneration piping systems,
• deaerator vessels, and
• insulated equipment

Question 33

Operating Time Period
The,,,,,,,of the selected process units/equipment is an important limit to consider. The RBI assessment may include the entire operational life, or may be for a selected period.

Answer 33

unit run lengths

Question 34

Selecting a Type of RBI Assessment:
processing units that are expected to have,,,,,, risk may only require simple, fairly conservative methods to adequately accomplish the RBI objectives

Answer 34

lower