Nels Wickander Frac Strings Solutions

1. HYBRID WORK STRING DESIGNS FOR
FRACING AND MILLING PLUGS
• Better flow rates because the connections outside
diameter allows annular circulation efficiency
• Smaller connection outer diameter allows better
annular flow characteristics during operation
• Unique metal to metal seal: working pressure of
15,000 psi at 40° per 100’ bend radius
• String for milling: higher torque tapered double
shoulder connection design for durability
• A durable high torque connection that can be field
refaced and have multiple recuts to reduce cost of
ownership
Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
1

2. HYBRID WORK STRING DESIGNS FOR
FRACING AND MILLING PLUGS
• Better flow rates because the connection outside
diameter allows annular circulation efficiency
• Smaller connection outer diameter allows better
annular flow characteristics during operation
• Unique metal to metal seal: working pressure of
15,000 psi at 40° per 100’ bend radius
• String for milling: higher torque tapered double
shoulder connection design for durability
• A durable high torque connection that can be field
refaced and have multiple recuts to reduce cost of
ownership
Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
2

3. FSS-265 Rugged Workstring Design
*Patent Pending
• New Workstring design with smaller OD connection giving
more versatility when used for refracing existing wells.
• Robust thread profile gives higher torsional strength
allowing greater performance on wellbore cleanouts.
• Can be field refaced
• 4.5 turns for makeup.
• Engineered for 4 ½” casing applications
• Metal to Metal seal
• Tested to 22,500 psi at 40deg/100ft bend radius
• Extended length upsets allow multiple recuts
Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
3

4. FLOW RATES
IN 4-1/2”
CASING
Fresh water
at 100o
F at
8,000 feet
• 2-3/8”, 5.95 lbs/ft, Two Step
• 6.5 BPM at 7,800 psi
• 2-7/8”, 7.90 lbs/ft, FSS-265
• 11.5 BPM at 7,800 psi
• FSS-265 with 3.250” connection outside
diameter allows for annular circulation
Patent Pending Application Number 17/078,018 --- Copyright Frac String Solutions LLC 4

5. FSS-265
Working
Parameters
With max MUT of 7,200 Ft-Lbs
The max tensile load* = 154,000 Lbs
With recommended MUT of 6,200 Ft-Lbs
The max tensile load* = 238,000 Lbs
Working Pressure 15,000 psi
Test Pressure 22,500 psi
NCS-30 thread compound required
*Tensile load including pressure end load
Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
5

6. FSS-338 Rugged Workstring Design
*Patent Pending
• New workstring design with smaller OD connection giving
more versatility when used for refracing existing wells.
• Robust thread profile gives higher torsional strength
allowing greater performance on wellbore cleanouts.
• Can be field refaced
• 6.5 turns for makeup.
• Engineered for 5 ½” casing applications
• Metal to Metal seal
• Tested to 22,500 psi at 40deg/100ft bend radius
• Extended length upsets allow multiple recuts
Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
6

7. FLOW RATES IN
5-1/2” CASING
Fresh water
at 100o
F
at 8,000 feet
Patent Pending Application Number 17/078,018 --- Copyright Frac String Solutions
LLC 7
2-7/8”, 7.90 lbs/ft,
FSS-265
•11.5 BPM at 7,800 psi
3-1/2”, 12.95 lbs/ft,
FSS-338
•18.0 BPM at 7,800 psi
FSS-338 with 4.125” connection outside
diameter allows for annular circulation

8. FSS-338
Working
Parameters
With max MUT of 15,000 Ft-Lbs
The max tensile load* = 260,000 Lbs
With recommended MUT of 13,000 Ft-Lbs
The max tensile load* = 412,000 Lbs
Working Pressure 15,000 psi
Test Pressure 22,500 psi
NCS-30 thread compound required
*Tensile load including pressure end load
Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
8

9. HYBRID WORK STRING DESIGNS FOR
FRACING AND MILLING PLUGS
• Better flow rates because the connections outside
diameter allows annular circulation efficiency
• Smaller connection outer diameter allows better
annular flow characteristics during operation
• Unique metal to metal seal: working pressure of
15,000 psi at 40° per 100’ bend radius
• String for milling: higher torque tapered double
shoulder connection design for durability
• A durable high torque connection that can be field
refaced and have multiple recuts to reduce cost of
ownership
Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
9

10. Seal Area Before
Coining During
Making Up
Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
10

11. What is Coining
• Coining (metalworking) A beneficial feature
that in some metals, the plastic flow reduces
surface grain size, and work hardens the
surface, while the material deeper in the part
retains its toughness and ductility.
• In our case, the Coining occurs when the pin
seal radius is reacting against the box seal
taper.
• The pin seal radius is plastically deformed
to match the shape of the box seal taper.
• The plastic deformation is permanent.
Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
11

12. Measuring the width
of the coined seal
area at 3/64” on FSS-
265-1 after one
M&B
Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
12

13. Video of the coined
area of FSS-265-1
Seal Surface after
one M&B
Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
13

14. FSS-265-2 Pin
Seal After 3 M&B
and Torque To
Yield
Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
14

15. HYBRID WORK STRING DESIGNS FOR
FRACING AND MILLING PLUGS
• Better flow rates because the connections outside
diameter allows annular circulation efficiency
• Smaller connection outer diameter allows better
annular flow characteristics during operation
• Unique metal to metal seal: working pressure of
15,000 psi at 40° per 100’ bend radius
• String for milling: higher torque tapered double
shoulder connection design for durability
• A durable high torque connection that can be field
refaced and have multiple recuts to reduce cost of
ownership
Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
15

16. Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
16

17. Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
17

18. PIN SEAL CONDITION AFTER 60 MAKE & BREAKS
OF THE FSS-338 CONNECTION TO 13,000 FT-LBS
NOTE THERE IS MINOR SCARRING ON THE
SEAL IN A RADIAL DIRECTION IN BOTH
PHOTOS
ANOTHER PHOTO OF THE SEAL
APPROXIMATELY 180 DEGREES FROM THE
PREVIOUS PHOTO
Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
18

19. FSS-265 TORQUE TURN TESTING WITH
A 1.15 FF NCS-30 THREAD COMPOUND
MU BO BO Ratio Apex Pin Nose Box Seal
2.4120 0.0060 -0.001
3,168 2,687 84.8% 2.3963 -0.0110 0.0000 Coining Occurred
4,010 3,180 79.3% 2.3963 -0.0105 -0.0005
5,012 3,927 78.4% 2.3955 -0.0105 -0.0005 Secondary Shoulder Contact
6,051 4,446 73.5% 2.3963 -0.0102 -0.0005
7,263 4,968 68.4% 2.3926 -0.0110 -0.0005
10,030 7,324 73.0% 2.3873 -0.0190 -0.0005
Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
19

20. FSS-265 TORQUE TURN TESTING WITH A 0.9 FF
BOL-2000 THREAD COMPOUND
• MUT BO BO Ratio Apex Seal Seal
• 2.4109 0.0050 0.0000
• 3,172 2,772 87.4% 2.3959 -0.0095 0.0005 Coining Occurred
• 4,049 3,187 78.7% 2.3954 -0.0105 0.0005 Secondary Shoulder Contact
• 5,132 3,797 74.0% 2.3947 -0.0105 0.0010
• 6,075 4,332 71.3% 2.3946 -0.0110 0.0010
• 10,057 6,934 68.9% 2.3806 -0.025 -0.0035
Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
20

21. HYBRID WORK STRING DESIGNS FOR
FRACING AND MILLING PLUGS
• Better flow rates because the connections outside
diameter allows annular circulation efficiency
• Smaller connection outer diameter allows better
annular flow characteristics during operation
• Unique metal to metal seal: working pressure of
15,000 psi at 40° per 100’ bend radius
• String for milling: higher torque tapered double
shoulder connection design for durability
• A durable high torque connection that can be field
refaced and have multiple recuts to reduce cost of
ownership
Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
21

22. • PHOTO ON LEFT ILLUSTRATES THE
COINING AND THE FIELD
TOLERANCE OF .030” GAP
• PHOTO ON RIGHT SHOWS THE PIN
NOSE SEAL MEASUREMENT AT
THE AREA THAT WILL BE COINED
DURING THE FIRST MAKEUP
Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
22

23. THANK YOU, PARTNERS!
• www.grayhawktoolsinternational.com
• www.pressurepumping.com
• www.wickander.com
Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
23
WICKANDER & ASSOCIATES, INC.

24. Sales Contact: Vance Barber
vbarber@fracstrings.com
Technical Contact: Nels Wickander
nwickander@fracstrings.com
Patent Pending Application Number 17/078,018 --- Copyright
Frac String Solutions LLC
24
www.fracstrings.com