This is an optimized work flow for engineering and design professionals in the oil and gas sector. Designers and engineers need to know how work flows and communication can be maximized in their companies. The specifically outlines how Independence Design consults it clients in the midstream natural gas engineering business how to set up for success.

1. Optimized
Engineering and
Design Philosophy
STANDARD ENGINEERING PROCEDURES OPTIMIZED TO AUTOMATE AND
REDUCE DUPLICATED ENGINEERING INFORMATION AND STREAM LINE THE
WORK PROCESSES ENGINEERS AND DESIGNERS ARE ALREADY USED TO.

2. Integrated Engineering and Design
 Utilizing lead Engineers that know design and lead designers that
know engineering leads to an integrated team with better
communication skills and know how.
 Most of the time these two different personality types do not get
along together.
 Finding technical solutions to help bridge these known
communication break points is critical to integrating Engineers and
Designers and allowing them to collaborate together with the
information they need to share.

3. Flow of Engineering information
Process
Simulation
Gas
Analysis
Bock Flow/
PFD
Equipment
Data Sheets
Load List/
Utilities
Performance
Summary
P&IDs
Equipment
List
3D Model
Layout
(Plot Plan,
Material
Estimates,
Detail
Design)
Process
Controls
Design criteria
Equip Sizes
Designcriteria
Equip Sizes
Line Sizes
Determine
PipingSpecs
Instruments and
Major Process Lines & Sizes
Cable Tray Sizes
(for early 3D
development)
(for early 3D
development)
(for early 3D
development)
Client supplied
Back to Client
Detail Design
Controls
Information
Source

4. Process Simulation
“Information Source”
 The entire work process begins with a Gas/Product Analysis report.
 With this a Senior Process Engineer can produce all of the technical
input that will go into all other disciplines. This is the “Information
Source”
 Information tends to change continually based on client needs and
other design condition.
 Other disciplines want the information to be static before they begin
work.
 Setting up a data flow of only critical information that disciplines
need to begin work and not the whole lot of process information is
critical.
 Information changes but does not always affect the other
disciplines.

5. Flow of Engineering information
Process
Simulation
Gas
Analysis
Bock Flow/
PFD
Equipment
Data Sheets
Load List/
Utilities
Performance
Summary
P&IDs
Equipment
List
3D Model
Layout
(Plot Plan,
Material
Estimates,
Detail
Design)
Process
Controls
Design criteria
Equip Sizes
Designcriteria
Equip Sizes
Line Sizes
Determine
PipingSpecs
Instruments and
Major Process Lines & Sizes
Cable Tray Sizes
(for early 3D
development)
(for early 3D
development)
(for early 3D
development)
Client supplied
Back to Client
Detail Design
Controls
Information
Source

6. Equipment Data Sheets
 Process information is exported via the Process Engineer into pre set
data sheet templates.
 The data sheets require a quick manual review.
 All initial equipment design criteria is contained in data sheets.
 Data sheet templates are categorized by equipment types with
critical data cells that will be shared between disciplines linked to
the equipment list.
 The Equipment list contains all of the distilled data sheet information
via links, that will be critical for P&ID equipment tags, design criteria
and sizes.

7. Flow of Engineering information
Process
Simulation
Gas
Analysis
Bock Flow/
PFD
Equipment
Data Sheets
Load List/
Utilities
Performance
Summary
P&IDs
Equipment
List
3D Model
Layout
(Plot Plan,
Material
Estimates,
Detail
Design)
Process
Controls
Design criteria
Equip Sizes
Designcriteria
Equip Sizes
Line Sizes
Determine
PipingSpecs
Instruments and
Major Process Lines & Sizes
Cable Tray Sizes
(for early 3D
development)
(for early 3D
development)
(for early 3D
development)
Client supplied
Back to Client
Detail Design
Controls
Information
Source

8. Equipment List
 The Equipment list becomes the go-to document for all disciplines
needing design criteria information about equipment.
 Design pressures and temps for equipment will determine the
specifications for the piping connected to it.
 Utilizing a predetermined set pressure temp range for pipe wall
thicknesses within the piping spec, the majority of wall thickness
calculations will be integrated into the spec.
 The majority of piping specs can be specified from information on
the equipment list.
 All of this information is needed to flow into the P&IDs.
 Equipment Sizes will also be available for the early development of
a 3D Layout which can be directly used as a Plot Plan.

9. Flow of Engineering information
Process
Simulation
Gas
Analysis
Bock Flow/
PFD
Equipment
Data Sheets
Load List/
Utilities
Performance
Summary
P&IDs
Equipment
List
3D Model
Layout
(Plot Plan,
Material
Estimates,
Detail
Design)
Process
Controls
Design criteria
Equip Sizes
Designcriteria
Equip Sizes
Line Sizes
Determine
PipingSpecs
Instruments and
Major Process Lines & Sizes
Cable Tray Sizes
(for early 3D
development)
(for early 3D
development)
(for early 3D
development)
Client supplied
Back to Client
Detail Design
Controls
Information
Source

10. Process Controls
 All major process controls will be fed from the simulation.
 This information will be accessible to the Instrument and Controls
Engineer to specify control data sheets ( ie valves and instruments)
 Comments from I/C will be put into P&IDs
 Typical control arrangements will be designed up front and referred
to in the P&IDs
 Instrument lists can be taken from the P&IDs

11. Flow of Engineering information
Process
Simulation
Gas
Analysis
Bock Flow/
PFD
Equipment
Data Sheets
Load List/
Utilities
Performance
Summary
P&IDs
Equipment
List
3D Model
Layout
(Plot Plan,
Material
Estimates,
Detail
Design)
Process
Controls
Design criteria
Equip Sizes
Designcriteria
Equip Sizes
Line Sizes
Determine
PipingSpecs
Instruments and
Major Process Lines & Sizes
Cable Tray Sizes
(for early 3D
development)
(for early 3D
development)
(for early 3D
development)
Client supplied
Back to Client
Detail Design
Controls
Information
Source

12. Block Flow/PFD and Load List/
Utilities
 Line sizes are determined from the
Process simulation
 A detailed PFD is generated with
line sizes for major process lines
 This information is passed on for
P&ID development.
 This information is also passed on
for early 3D Layout development
also to assist with material
estimation.
 The load list is the basis for
electrical usage, this information
helps facilitate determining cable
sizes
 With cable sizes and a front end
layout of equipment preliminary
cable trays can be ran for
estimation.

13. Flow of Engineering information
Process
Simulation
Gas
Analysis
Bock Flow/
PFD
Equipment
Data Sheets
Load List/
Utilities
Performance
Summary
P&IDs
Equipment
List
3D Model
Layout
(Plot Plan,
Material
Estimates,
Detail
Design)
Process
Controls
Design criteria
Equip Sizes
Designcriteria
Equip Sizes
Line Sizes
Determine
PipingSpecs
Instruments and
Major Process Lines & Sizes
Cable Tray Sizes
(for early 3D
development)
(for early 3D
development)
(for early 3D
development)
Client supplied
Back to Client
Detail Design
Controls
Information
Source

14. 3D Layout
 All of the information eventually makes it to the 3D Layout via the
P&IDs. But much of it can be developed early on for estimating
purposes and client involvement.
 Structural and Civil is also added for estimating purposes.
 Having a front end layout already begun with preliminary
equipment sizes and cable tray will help reduce confusion later in
detail design were collisions typically take place.
 Maintaining a single model that all disciplines contribute to is crucial
for internal communications. Starting from a preliminary model
rather than from a blank screen will also help designers know what is
expected.

15. Flow of Engineering information
Process
Simulation
Gas
Analysis
Bock Flow/
PFD
Equipment
Data Sheets
Load List/
Utilities
Performance
Summary
P&IDs
Equipment
List
3D Model
Layout
(Plot Plan,
Material
Estimates,
Detail
Design)
Process
Controls
Design criteria
Equip Sizes
Designcriteria
Equip Sizes
Line Sizes
Determine
PipingSpecs
Instruments and
Major Process Lines & Sizes
Cable Tray Sizes
(for early 3D
development)
(for early 3D
development)
(for early 3D
development)
Client supplied
Back to Client
Detail Design
Controls
Information
Source