Running Procedure
VAF ® Rev.: 0
voestalpine Tubulars GmbH & Co KG
www.voestalpine.com/tubulars
VAF ®
RS-RP-VAF-1 Rev.: 0
voestalpine Tubulars GmbH & Co KG
www.voestalpine.com/tubulars
Table of Content
Table of Content
VAF®
Technical data sheet
Running and handling
Visual inspection and field repair
Transportation, handling and storage
This document contains the recommended practices for the installation of voestalpine tubulars proprietary
connections. This is not comprehensive and is meant only as general guidance, based on best industry practices.
The user assumes all responsibility for the safe and effective implementation of these practices. Further, it is the
user’s responsibility to provide competent and knowledgeable personnel, as well as appropriate and well
maintained equipment. Equipment manuals must be followed. In case of conflict safety has priority.
voestalpine Tubulars GmbH & Co KG
3 | November 27, 2020 | Running Procedure VAF® – Rev.: 0
VAF ®
VAF® is a real flush premium connection and therefore
the perfect solution for slim hole applications.
Metal to metal seal– The optimal contact pressure in
the seal area ensures 100% gas tightness.
Thread design – manufactured in conformity with the
API 5CT standard, the voestalpine Tubulars proprietary
standard and customer special requirements
Thread design Positive Make-up stop – external shoulder provides a
3 ½ - 7 5/8 inches
15% seal taper
positive make-up torque stop and allows visual
15° shoulder confirmation of proper make-up
5 threads per inch
30° stabbing flank
-5° load flank (reverse angle) Smooth Internal Profile– minimizes turbulences and
also provides good conditions for internal coating
voestalpine Tubulars GmbH & Co KG
4 | November 27, 2020 | Running Procedure VAF® – Rev.: 0
Dimensions and torque values
Dimensions and torque values will be provided
through our datasheet generator:
http://www.voestalpine.com/tubulars/en ->
Customer service -> Datasheet generator
Torques are valid for dope with friction factor 1
at room temperature
Max. torque: optimum +10%
Min. torque: optimum -10%
Slip type elevator has to be used
voestalpine Tubulars GmbH & Co KG
5 | November 27, 2020 | Running Procedure VAF® – Rev.: 0
Running and handling
Equipment Diesel and oil-based products are not recommended
Elevator as cleaning solvent
slip type – clean and sharp dies Prevent corrosion
Derrick Drifting
Blocks are centered over rotary table Drift pipe on rack – start from box end
Power tong Visual inspection
Correct size and calibrated Check each pipe (see page 11)
Apply clean and dry protectors
Torque-turn monitoring system
Pipe tally
Pipe handling
Thread protectors in place Running
No hooks to lift pipes Lifting
No rough handling Remove pin protectors just before lifting/stabbing
Use proper racks Use proper handling and lifting plugs
Only plugs originate from voestalpine Tubulars
Preparation licensed machine shops shall be used
Cleaning Plugs shall be marked with : VAF - LP - size - mark of
Remove and clean protectors manufacturer – maximum load
Plugs shall show indicators for minimum and
Clean pin and box
maximum make up
Prevent corrosion
voestalpine Tubulars GmbH & Co KG
6 | November 27, 2020 | Running Procedure VAF® – Rev.: 0
Running and handling
Thread of plug shall be shot peened and Stabbing
phosphated Clean the connection with compressed air
Remove all storage compound before usage Check seal area for damages
Check visually the condition of the plug and Apply thread compound – pin & box
keep it clean
VAF – LP – 5 ½“ # 20,00 - nn – 172 t / 387 kips
Apply molykote spray from time to time
Make up the plugs by hand and snug up with
the aid of a steel bar
make-up indication Box face of the pipe must be within the
make up indication window of the plug
Lable
API-modified running compound with known
friction factor between0,8 and 1,2 is recommended.
Dope shall be applied uniform on pin and box as a
thin layer (thread profile shall be visible after final
Load as shown on lable is the maximum load application of dope).
allowed to apply. It does not consider specific
safety limits
Use a stabbing guide
Lower carefully
Maintain good alignment
voestalpine Tubulars GmbH & Co KG
7 | November 27, 2020 | Running Procedure VAF® – Rev.: 0
Running and handling
Make-up Acceptance
Start slowly in high gear with open back-up
Final torque between maximum and minimum
If connection jams (torque increases immediately) Use correct friction factor of dope
Stop and release tong Friction factor might be affected by extreme
Disengage connection / place back-up on pipe body temperatures.
at a reasonable distance from connection
No plastic deformation
Clean connection / visual inspection
If questionable - set aside Increase of torque shall be reasonable uniform and
If o.k. – stab again smooth
If connection stabs correct Connection must shoulder
Increase speed to spin-in (max. 25 rpm)
Assemble until torque increase
Stop rotation / close back-up
Finish in low gear and with speed less than 10 rpm
Approximately 1 to 2 turns before shouldering
voestalpine Tubulars GmbH & Co KG
8 | November 27, 2020 | Running Procedure VAF® – Rev.: 0
Running and handling
VAF®
TORQUE
MAXIMUM
OPTIMUM Final Torque
MINIMUM
Torque on shoulder
Torque on shoulder
= Final Torque – Shouldering Torque
= Delta Torque
Minimum 20 % torque on shoulder
(Delta Torque).
Shouldering Torque
TURN
voestalpine Tubulars GmbH & Co KG
9 | November 27, 2020 | Running Procedure VAF® – Rev.: 0
Running and handling
Break-out Thread lock compound
Set up power tongs to low gear
Speed shall be less than 10 rpm Pin
Slowly lift the pin out of the box Thread lock compound shall be applied
Handle with care / use protectors on the first two-thirds of the threads.
Clean all pipes No other compound on pin.
Visual inspection / page 11 Box
Apply appropriate dope No thread lock compound or dope compound on
Box
Any problems during make-up or break-out should
be reported immediately
Used equipment, thread compound, torques used,
assembly speed, ……. Box
Any questionable joint, set aside for evaluation, shall Dope
be brought to a disposition
Accepted or rejected
If rejected it must be properly marked Thread lock compound
Any pipe questionable or not used shall be doped again
before send back to stock Pin
voestalpine Tubulars GmbH & Co KG
10 | November 27, 2020 | Running Procedure VAF® – Rev.: 0
Visual inspection and field repair
1 Torque shoulder
2 Seal BOX
3 Clearence
4 Thread length
5 Cylindrical section
6 Internal bore/machined
7 Taper run out
8 Chamfer
9 Pin face Pin
9-2 Nose radius
1-5 Radius
Design1
Design 2
voestalpine Tubulars GmbH & Co KG
11 | November 27, 2020 | Running Procedure VAF® – Rev.: 0
Visual inspection and field repair
Pin
Element Area Rust Rust + Pitting Burrs Scratches Dent
Grind to smooth Grind to smooth surface
Remove with Grind to smooth surface
Torque shoulder 1 N/A surface with emery with file and emery
abrassive fleece with emery paper
paper paper a* Up to 2 thread-turns may be
imperfect if not more than ¼ of a
Remove with Minor remove with
Seal 2
abrassive fleece
Recut Pin N/A
abrasive fleece
Recut Pin turn is affected. If more than 2
thread-turns / or more
Remove with Remove rust with abrassive
Clearence 3
abrassive fleece fleece. Pitting is accepted.
N/A Accepted Accepted than a half turn in total / are
affected, hand-repair may be
Remove with Grind to smooth surface with Grind to smooth surface
Thread length 4
abrassive fleece emery paper
N/A Accepted
with file and emery paper accepted after approval by
voestalpine Tubulars specialist.
Remove with Grind to smooth surface with Grind to smooth surface
Cylindrical section 5 N/A Accepted
abrassive fleece emery paper with file and emery paper
Abrassive fleece : 400 / 500
Remove with Remove rust with abrassive
Internal bore 6
abrassive fleece fleece. Pitting is accepted.
N/A Accepted Accepted (superfine)
Emery paper : 300 -400 (superfine)
Chamfer 8 Remove with Grind to smooth surface with N/A Grind to smooth surface Grind to smooth surface
abrassive fleece emery paper with emery paper with file and emery paper
Grind to smooth
Remove with Grind to smooth surface with Grind to smooth surface
Pin face 9 N/A surface with emery
abrassive fleece emery paper with file and emery paper
paper
Grind to smooth
Remove with Grind to smooth surface with Grind to smooth surface
Nose radius 9-2 N/A surface with emery
abrassive fleece emery paper with file and emery paper
paper
Remove with Remove rust with abrassive Grind to smooth surface Grind to smooth surface
Radius 1-5 N/A
abrassive fleece fleece. Pitting is accepted. with emery paper with file and emery paper
voestalpine Tubulars GmbH & Co KG
12 | November 27, 2020 | Running Procedure VAF® – Rev.: 0
Visual inspection and field repair
Box
Element Area Rust Rust + Pitting Burrs Scratches Dent
General: On phosphated
Remove with Grind to smooth surface Grind to smooth surface Grind to smooth surface with
Torque shoulder 1
abrassive fleece with emery paper
N/A
with emery paper file and emery paper
surfaces, the phosphate layer
shall not be removed excessively
Seal 2
Remove with
abrassive fleece
Re-cut Box N/A
Remove with abrassive
fleece
Re-cut Box by hand – repair (except area 7,8
and 10). Minor removal is
Remove with
Remove rust with acceptable as it is.
Clearence 3 abrassive fleece. Pitting N/A Accepted Accepted
abrassive fleece
is accepted.
Heavier removal can be accepted
Remove with Grind to smooth surface Grind to smooth surface Grind to smooth surface with
Thread length 4
abrassive fleece with emery paper with emery paper
Accepted
file and emery paper after approval by voestalpine
Remove rust with
Tubulars specialists. Phosphate
Cylindrical section 5
Remove with
abrassive fleece. Pitting N/A
Grind to smooth surface Grind to smooth surface with and/or corrosion protection spray
abrassive fleece with emery paper file and emery paper
is accepted. should be applied (time for drying
Remove with
Remove rust with shall be given).
Run out 7 abrassive fleece. Pitting Accepted Accepted Accepted
abrassive fleece
is accepted.
Remove with Remove with abrassive Grind to smooth surface Grind to smooth surface with
Chamfer 9 N/A
abrassive fleece fleece with emery paper file and emery paper
Remove with Remove with abrassive Remove with abrassive
Radius 1-5 N/A Remove with abrassive fleece
abrassive fleece fleece fleece
voestalpine Tubulars GmbH & Co KG
13 | November 27, 2020 | Running Procedure VAF® – Rev.: 0
Transportation, Handling and Storage
(as recommended by API 5C1)
voestalpine Tubulars GmbH & Co KG
14 | November 27, 2020 | Running Procedure VAF® – Rev.: Draft
Transportation, Handling and Storage
(as recommended by API 5C1)
0,5m
voestalpine Tubulars GmbH & Co KG
15 | November 27, 2020 | Running Procedure VAF® – Rev.: 0
Thank you
voestalpine Tubulars GmbH & Co KG
www.voestalpine.com/tubulars
