
Gas / Liquid sampling tool
High pressure, manually operated.
Version 2.2

VERSION SECTION ISSUE DATE AUTHOR DESCRIPTION OF UPDATE
1.0 21 March 2017 JG First Edition
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2
2
Document name:
VOR-GST-MAN:VER 1.0
VST-XX-HP
Vortex gas sample tool manual version 1.0
VORTEX International Ltd
27 Parrs Road RD1
New Plymouth 4371
New Zealand
Ph/Fax + 64 6 7538102
Mobile + 64 (0) 276 88 53 72
http://www.vortexdredge.com

CONTENTS Page
1 INTRODUCTION 4
1.1 Reference Documents 4
1.2 Abbreviations 4
1.3 Contacts 4
2 SAFETY 5
2.1 Overview 5
2.2 Risk Assessment 5
2.3 Mechanical 5
3 TECHNICAL SPECIFICATIONS 7
3.1 Description 6
3.2 Schematic 7
3.3 Component particulars 8
4 OPERATIONAL PROCEDURES
4.1 Pre-dive Checks tool visual check 9,10,11,12,13,14
4.2 Pulling a vacuum 15
4.3 Changing bottles 16
4.4 Pre dive checks, in water operation 17,18
4.5 Post Dive Checks 19
4.6 Cleaning tool and bottles 20
5 MAINTENANCE & STORAGE 22
5.1 Standard Procedures 22
5.2 Replacement Procedures 22
6 Appendix and references
6.1 Tool dimensions and weights 23
6.2 Inventory 24
6.3 Bottle part numbers 25
Appendix III. Suppliers specifications sheets 26-31
CONTACTS 32
3
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2

1.INTRODUCTION
The vortex High pressure Gas Sampling tool is designed to capture gas and liquid samples in a
subsea environment and recover said samples to the surface in a high pressure state of no more
than 1800psi (124bar) by means of an electro mechanical operated syringe to ingest sample then
purge sample into a sample bottle after recovery to surface.
This tool is designed to be deployed from the surface with the bottle bled of air and a vacuum
entrained in the system. Sample filling relies on the entrained vacuum and ambient water
pressure filling the bottle when the main isolation valve is operated.
1.1 Reference Documents
See Appendix and references section at the end of this document for certificates and
manufacturers data.
1.2 Abbreviations
PSI: Pounds per Square Inch
PPE: Personnel protective equipment
JHA: Job Hazard Analysis
VST: Vortex Sample Tool
HP: High Pressure
1.3 Contacts
For Technical queries, Comments and Feedback contact Vortex Dredge:
[email protected]
4
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2

2. SAFETY
2.1 Overview
All local HSE procedures must be followed. Use of PPE should follow guidelines outlined with
handling of potential sample. For example hazardous gas samples should have PPE appropriate
to mitigate dangers associated with that gas. Safety glasses should be considered minimum
requirement irrespective of potential sample. Your safety is your responsibility. Think and plan
ahead accordingly.
2.2 Risk Assessment
Consult with local HSE and installation operators to identify best practice steps needed for safe
operations. Identify if the task been done and implement lessons learned. JHA, permitting and
toolbox talks should preclude all operations.
2.4 Mechanical
Ensure all fittings and fasteners are secure. Check general condition of tool against images in
manual for anything which may indicate potential operational issues.
•Remember, your safety is your responsibility. Think and plan ahead
accordingly. If in doubt, please ask.
5
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2

3. TECHNICAL SPECIFICATIONS
3.1 Description
To “Suck” the sample into the syringe the operator will function the main isolation valve to open
the circuit to ambient pressure and ‘draw’ the sample into the bottle.
To entrap the sample in the sample bottle the operator will function the main isolation valve
closed to seal the circuit and entrap the sample in the sample bottle.
6
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2

7
3. TECHNICAL SPECIFICATIONS
3.2 Description: Schematic
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2
Exhaust relief valve set
to 1800psi (124bar)
0 to 3000 psi
gauge
Sample bleed
valve / vacuum
pull port
Secondary
isolation valve
Vortex VST-XX-HP sample tool schematic
Main isolation
valve
Inlet funnel
Sample bottle

8
3. TECHNICAL SPECIFICATIONS
3.3 Component particulars
• Complete tool Weight empty in air = 107 lb (40kg)
• Complete tool Weight empty in fresh water = 61 lb (28 kg)
• Containment bottle volume = 0.264 gallon (1.0 litre)
• Main relief valve setting as of 1 May 2013 = 1800psi (124 bar)
• Complete tool dimensions = 44 inch (1140 mm) long x 7 inch (180 mm) diameter
• Main relief valve working range = 0 to 3000 psi (206 bar)
• Main isolation valve rated to 10,000 psi (689 bar)
• Secondary isolation vale rated to 3000 psi (206 bar)
• Sample bleed off valve rated to 3000 psi (206 bar)
• Pressure gauge = 0 to 3000 psi (206 bar)
• Standard funnel diameter =- 6 inch (150mm) Capacity = 780ml (0.82 quart).
• Extra funnel diameter =- 10 inch (254mm) Capacity = 6 litre (6.3 quart).
• Depth rating = 2054 mtr. 6741 foot seawater with 1800psi rated bottles.
• Deeper rated and different sized bottles available on request.
•
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2

9
4. OPERATION PROCEDURES
4.1 Pre Dive Checks tool visual check
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2
Tool complete and ready to deploy.
Access sample bottles within seconds via
one, heavy duty clamp.

10
4. OPERATION PROCEDURES
4.1 Pre Dive Checks tool visual check
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2
ROV friendly Main
isolation valve.
Small sample intake funnel.
Remove when servicing.
Sample containment
bottle and all valves
mounted in stainless
steel anti - impact
safety housing
Secondary isolation
valve.
Multi orientation ROV
handle
Contained sample
pressure.
Sample bleed
off valve/
vacuum pull
port.
Maintenance
access port.

11
4. OPERATION PROCEDURES
4.1 Pre Dive Checks tool visual check
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2
10,000psi rated, ROV specific, main
isolation valve and orientation.
Main relief valve.
Vortex relief setting is 1800psi (124 bar)
It is not uncommon to see around 200 psi
drop in pressure after closing main
isolating valve during ascent to surface
whilst main relief valve ‘resets’

12
4. OPERATION PROCEDURES
4.1 Pre Dive Checks tool visual check
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2
Fit male plug to stem
before transporting
sample bottle.
Close this isolation valve
before transporting
sample bottle.
This tool has three sample bottles in the kit. Surface with full bottle, change
out bottle for dispatch to laboratory, fit new bottle, continue sample
programme.
Remove these four bolts to extract main
body from casing during serving.

13
4. OPERATION PROCEDURES
4.1 Pre Dive Checks tool visual check
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2
Standard funnel capacity:
780ml (0.82 quart).
No view ports.
Simple bolt on extra funnel
capacity:
6 litre (6.3 quart).
3 view ports.

14
4. OPERATION PROCEDURES
4.1 Pre Dive Checks tool visual check
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2
Bleed off all
pressure from
this sample
bleed off valve
before serving.
Remove this clamp to split casing and
change bottle. Ensure O-ring is in place
between flanges.
REMOVE ALL PRESSURE FROM TOOL BEFORE SERVICING:

15
4. OPERATION PROCEDURES
4.2 Pulling a vacuum
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2
Sample bleed off valve.
Connect here to draw off sample or to pull a vacuum to store
in sample bottle when working in very shallow water.
Secondary isolator valve.

16
4. OPERATION PROCEDURES
4.3 Changing bottles
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2
REMOVE ALL PRESSURE FROM TOOL BEFORE SERVICING:
Tool has two spare bottles as
standard kit to enable multiple
samples whilst on location.
ALWAYS Fit male plug to fitting at
end of isolation valve prior to
shipping pressurized bottle to
laboratory.
Simply fit spare bottle to continue sample
programme.
NO DOWNTIME SENDING TOOL AWAY TO
LAB.

PROCEDURE DESCRIPTION CHECK
1
top section of tool to expose sample bottle location.
Replace top section of tool over sample bottle.
Ensure main isolation valve is CLOSED and secondary isolation
valve is OPEN.
Connect vacuum pump to sample bleed valve / vacuum pull
port, open this valve and draw full vacuum,
reading in dive logs then close this valve to isolate vacuum
inside the circuit.
Ensure sample bleed valve is closed and capped off.
Containment bottle will now be isolated at sea level pressure
with a vacuum until main isolation valve is opened and
pressure differential equalizes between bottle and sea water
ambient pressure.
Check 0 to 3000 psi gauge is reading 0 and full of appropriate
gauge liquid.
With tool on location, invert tool to remove any residual air
bubbles in the funnel, place tool with funnel facing down
place funnel over the sample location.
Hold tool vertically over
product until product rises and displaces water in funnel. Hold
tool vertically over product until product rises and displaces
water in funnel.
17
4. OPERATION PROCEDURES
4.4 Pre dive checks, in water operation
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2
Remember, your safety is your responsibility. If in doubt, please ask

STEP PROCEDURE DESCRIPTION CHECK
8
Open Main isolation valve to ‘suck’ product sample into tool.
Close main isolator valve.
Close secondary isolator valve if desired. This valve is only a
back up to the main isolator valve.
As water depth decreases during ascent, the main relief valve
will limit the pressure stored in the containment bottle to a
pre
Remove top section of tool to expose sample bottle location.
Close bottle isolation valve. Remove,
Depending on client requirements, the tool may need internally
cleaning
before next sample run. Invert tool,
fill funnel with hot
soapy water, open all valves and flush out circuit then flush
circuit with fresh water then blow dry with air and close all
valves.
Fit clean containment bottle, pull and isolate vacuum in circuit,
replace top section of tool over sample bottle.
Please return tool to supplier for post job maintenance.
18
4. OPERATION PROCEDURES
4.5 Pre dive checks, in water operation
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2
Remember, your safety is your responsibility. If in doubt, please ask

STEP PROCEDURE DESCRIPTION CHECK
1
tool looking for any damage or anything
Invert tool, fill funnel with hot soapy water, open all valves and
flush out circuit then flush circuit with fresh water.
Connect steam cleaner to manifold block and sample bleed off
valve and thoroughly clean circuit with all valves open.
Blow dry with air and close all valves.
Check mechanical connections on the tool are secure.
19
4. OPERATION PROCEDURES
4.5 Post – Dive Checks
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2

20
4. OPERATION PROCEDURES
4.6 Cleaning tool and bottle
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2
REMOVE ALL PRESSURE FROM TOOL BEFORE SERVICING:
Sample bleed off valve.
Connect here to flush manifold
block through with de-greaser
and steam cleaner.
Manifold block.
Bottle connection fitting. Connect
here to flush manifold block through
with de-greaser and steam cleaner.
Funnel inlet. Open main isolation valve and
enter here to flush through valve and plumbing
with de-greaser and steam cleaner.
Bottle end blank fitting. Remove
to flush through with de-greaser and
steam cleaner.
Bottle connection fitting. Remove
and open valve to flush through with
de-greaser and steam cleaner.
To clean tool, remove
sample bottle, open main
isolator valve, flush
through these ports with
hot soapy water to remove
all hydrocarbons. Roll tool
full 360 degrees to flush
manifold block drillings.
Flush with clean water,
blow dry with air.

21
4. OPERATION PROCEDURES
4.5 Post – Dive Checks
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2

22
5. MAINTENANCE & STORAGE
5.1 Standard Procedures
• Tool should be flushed with hot soapy water as per post dive checks.
• Allow to dry fully.
• Check operational condition of valves.
• Visual check of tool for anything which could prohibit future operation of the tool.
5.2 Replacement Procedures
• Contact Ashtead Technology representatives with reports of any damaged or unserviceable
items
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2

23
Complete tool Weight empty in air = 107 lb (40kg)
Complete tool Weight empty in fresh water = 61 lb (28 kg)
Containment bottle volume = 0.264 gallon (1.0 litre)
Complete tool dimensions = 44 inch (1140 mm) long x 7 inch (180 mm) diameter
Extra funnel diameter =- 10 inch (254mm) Capacity = 6 litre (6.3 quart).
6. APPENDIX AND REFERENCES
6.1 Tool dimensions and weights
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2

24
6. APPENDIX AND REFERENCES
6.2 Inventory
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2
1 X sample tool complete.
1 x 11/16 crows foot spanner.
1 X multi fit ROV handle.
4 x spare funnel to main isolating valve O-rings Part number:022
2 x spare sample bottles complete. (3 bottles in total)
Consumables to be replaced at clients cost:
1000cc containment bottle replacement part number: VSTHS8HDY1000
Servicing:
Please return to supplier for servicing.
If in doubt, please ask.

25
6. APPENDIX AND REFERENCES
6.3 Bottle part numbers
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2

26
6. APPENDIX AND REFERENCES
Appendix III
Bottle Certificates
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2

27
6. APPENDIX AND REFERENCES
Appendix III
Sample Bottle Details
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2

28
6. APPENDIX AND REFERENCES
Appendix III
Sample Bottle Details
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2

29
6. APPENDIX AND REFERENCES
Appendix III
Sample Bottle Details
N/A. Bare 316 stainless steel
Design test pressure of 3000 psi
Marked service pressure 1800 psi
It is YOUR responsibility to ensure transportation of equipment containing
product and or samples complies with all relevant authorities.
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2

Material
bar mm mm kg ml
HSSC3K1
5-3BA
207 38 221 0.6 150
.250-18
NPT
DOT-3A -
316L
Stainless
HSSC3K1
5-4BA
207 38 221 0.6 150
.375-18
NPT
DOT-3A -
316L
Stainless
HSSC30-
1BA
207 76 173 2.3 300
.500-14
NPT
DOT-3A -
316L
Stainless
HSSC30-
2BA
207 76 239 3.0 500
.500-14
NPT
DOT-3A -
316L
Stainless
HSSC30-
3BA
207 76 417 5.6 1000
.750-14
NPT
DOT-3A -
316L
Stainless
HSSC3K4
0-1BA
207 102 260 5.2 900
.250-18
NPT
DOT-3A
Threaded
cap &
collar
316L
Stainless
HSSC3K4
0-2BA
207 102 279 5.7 1000
.250-18
NPT
DOT-3A
Threaded
cap &
collar
316L
Stainless
30
6. APPENDIX AND REFERENCES
Appendix III
Sample Bottle Details
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2

31
6. APPENDIX AND REFERENCES
Appendix III
Check Valve Details
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2

32
Joe Goodin - Managing Director
VORTEX International Ltd, 27 Parrs Road, RD1, New Plymouth, New Zealand
www.vortexdredge.com
In association with Ashtead Technology:
ABERDEEN
Ashtead Technology Ltd
Ashtead House, Discovery Drive, ArnhallBusiness Park, Westhill, Aberdeenshire AB32 6FG
Tel: +44 (0)1224 771888, Email:
[email protected]
SINGAPORE
Ashtead Technology (S.E.A) Pte Ltd
Loyang Offshore Supply Base, 25 Loyang Crescent, Block 302, Unit 02-12 TOPS Ave 3, PO Box 5157,
HOUSTON
Ashtead Technology Offshore Inc
19407 Park Row, Suite 170, Houston, TX 77084, U.S.A
Tel: +1 281 398 9533, Email:
[email protected]
SCOPE ENGINEERING (Ashtead Technology Agent)
Scope Engineering (WA) Pty Ltd
35 Stuart Drive, Henderson, Western Australia 6166
T: +61 8 6498 9642 F: +61 8 6498 9584, Email:
[email protected]
Innova AS
P.O. Box 390 Forus, 4067 Stavanger
Phone: +47 51 96 17 00
Fax: +47 51 96 17 01
E-mail:
[email protected]
TES Survey Equipment Services LLC
PO Box 128256
Abu Dhabi
UAE
Tel: + 971 2 650 7710
Fax: +971 2 650 7200
E-mail:
[email protected]
6. Contacts
Vortex Dredge - Mini Gas Sampling Tool - Version 2.2