SAND CONTROL

SAND CONTROL MEDIA
Mechanical Strength Test Data

Categories:


I. Tensile Load Test Data (Ř5˝ x 4' sample)


Objective: Elongation testing
Description: This sample was subjected to an increased tension
load until a nominal rating was achieved.
Applied load: 443,000 lbs
Status of sample: Minimal deformation
Status of
Dynapore® media:
Integrity maintained

 


 

Objective: Tensioned to failure
Description: This sample was subjected to
an increasing tension load until failure
Peak load 1: 429,000 lbs
Status of sample: Outer protective shroud parted
at weld from assembly
Status of
Dynapore® media:
Integrity maintained
Peak load 2: 453,000 lbs
Status of sample: Base pipe failed
Status of
Dynapore® media:
6" total elongation, but integrity uncompromised

Post-test Flow Testing



The samples were flow tested to confirm the premium screen's integrity after the tensile tests. The flow comparison between the control sample and tested samples did not show any unusual flow patterns; even with permanent deformation of the screen, filtration integrity was not lost.

II. Torque Test (Ø5½ x 4' sample)




Objective: Permanent deformation testing
Description: This sample was set into an appropriate fixture and torque load was applied until a deformation to a predetermined angle resulted in the sample (nominal rating).
Applied torque: 38,626 ft·lbs
Resulting distortion: 6.2º
Status of sample: Some deformation; signs of buckling, but sample intact
Status of
Dynapore® media:
Integrity maintained

 

 

Objective: Torqued to failure
Description: This sample was set into the fixture and torqued until the sample failed.
Applied torque: 61,758 ft·lbs
Resulting distortion: 68º
Status of sample: Outer protective shroud torn
Status of
Dynapore® media:
Integrity maintained

Post-test Flow Testing


The samples were flow tested to confirm the premium screen's integrity after the torque tests. The flow comparison between the control sample and tested samples did not show any unusual flow patterns; even with permanent deformation of the screen, filtration integrity was not lost.

III. Screen Crush Test (Original ODØ6.4)




Objective: Crush diameter to 60% of original
Description: The premium screen-only sample was set into a crushing fixture and a load was applied until the diameter of the sample is 60% of its original size.
Original diameter: OD Ø6.4"
Target diameter: OD Ø3.8"
Peak load applied
during compression:
146,000 lbs

Post-test Flow Testing


After the crush test, the sample was flow tested to confirm the premium screen's integrity. Even with permanent deformation of the screen, filtration integrity was not lost. The flow comparison between the control sample and tested samples did not show any unusual flow patterns.

IV. Screen Burst Pressure: 1,200 psi



Objective: Internal pressure of Premium Screen increased until burst occurs
Description: In this test, a sample was set into a pressure chamber, where it was then internally sealed. The inside was pressurized until the screen burst (failure condition).
Sample #1 burst pressure: 1,204 psi
Sample #2 burst pressure: 1,185 psi
Status of
Dynapore® media:
There were no leaks across the filter medium prior to failure.

V. Screen Collapse Pressure




Objective: Collapse pressure testing
Description: In this test, asample was set into an external pressure chamber, where it was then sealed. The inside was pressurized until a specific pressure was achieved (nominal rating).
Sample #1 burst pressure: 5,014 psi
Status of
Dynapore® media:
The filter media was compressed, but was functional & no leaks were detected.

Objective: External pressure of Premium Screen increased until screen collapse occurs
Description: In this test, a sample was set into an external pressure chamber, where it was then sealed. The inside was pressurized until the screen burst (failure condition).
Sample collapse pressure: 7,725 psi
Status of
Dynapore® media:
The base piece collapsed, but Dynapore® element was undamaged.


Note that the other components of the assembly failed before the Dynapore® mesh was damaged.

 

Post-test Flow Testing



After the collapse test, the sample was flow tested to confirm the premium screen's integrity. Even with permanent deformation of the screen, filtration integrity was not lost up to the failure condition. The flow comparison between the control sample and tested samples did not show any unusual flow patterns.

VI. Bend Tests


Objective: Bend samples 60º per 100-feet section
Description: In this test, a screen is bent 60º/100' section to determine what damage, if any, is done to the premium screen.
Status of
Dynapore® media:
Screen withheld integrity, and no welds were damaged. Filtration capabilities were determined to be the same after glass bead testing was performed.

VII. Flow Test Summary (Ř5˝ x 4' sample)



Sample Test/Failure Condition 20 GPM 17 GPM 14 GPM
1 Control Sample .908 .605 .502
2 Crush Test .899 .624 .432
3 Elongation .835 .608 .417
4 Tension Failure .862 .615 .421
5 Torque Failure .862 .626 .428
6 Rotation .845 .609 .419
7 Collapase Failure 1.363 1.073 .784

* - All results in psi

 



Martin Kurz & Co., Inc.

8439 Triad Drive • Greensboro, NC, USA 27409
Ph: 336-217-3814 • Fax: 336-668-4452
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