MC² Market & Competitive Convergence

Particle removal efficiency testing
for oilfield cartridges

Tables & charts

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Table 1
Particle Counter Data



Ch
Dia
(µm)
Inlet
Diff
Inlet
Cum
Outlet
Diff
Outlet
Cum
Diff
Eff %
Cum
Eff %
Beta
Ratio
1 -- -- -- -- -- -- -- --
2 3.2 87122.8 220051.5 56579.6 125196.1 35.1 43.1 1.8
3 4.0 53685.0 132928.7 32201.9 68616.5 40.0 48.4 1.9
4 5.1 32218.9 79243.7 18061.5 36414.6 43.9 54.0 2.2
5 6.4 19572.0 47024.8 9739.6 18353.1 50.2 61.0 2.6
6 8.1 11585.6 27452.8 4987.4 8613.5 57.0 68.6 3.2
7 10.2 6689.6 15867.2 2135.5 3626.1 68.1 77.1 4.4
8 12.8 4058.2 9117.6 926.8 1490.6 77.2 83.8 6.2
9 16.1 2191.8 5119.4 355.4 563.8 83.8 89.0 9.1
10 20.3 1305.2 2927.6 149.0 208.4 88.6 92.9 14.0
11 25.6 747.3 1622.4 44.3 59.4 94.1 96.3 27.3
12 32.3 428.4 875.1 6.5 15.1 98.5 98.3 58.0
13 40.7 249.1 446.7 5.4 8.6 97.8 98.1 51.9
14 51.2 119.6 197.6 3.2 3.2 97.3 98.4 61.8
15 64.6 61.4 78.0 0.0 0.0 -- -- --
16 81.3 16.6 16.6 0.0 0.0 -- -- --

Ch: Channel No. Each channel counts particles in a certain range; e.g., Channel 2 counts particles between 3.2µm and 4.0µm. Channel 1 was not used per manufacturer's recommendation.

Dia: Particle diameter.

Inlet & Outlet Cum: Cumulative count upstream and downstream of the filter respectively. Represents the number of counts in a given channel and higher channels; e.g., there are 220,051.5 inlet particles ³ 3.2µm.

Inlet & Outlet Diff: Differential count uptstream and downstream of the filter respectively. Represents the number of counts in a given channel; e.g., there are 87, 122.8 inlet particles 3.2 to 4.0µm counted in channel 2.

Diff Eff %: Differential Particle Removal Efficiency. The percentage of particles removed in the channel; e.g., 35.1% of the particles counted in Channel 2 were removed from the fluid.

Cum Eff %: Cumulative Particle Removal Efficiency. The percentage of particles removed in a given channel and higher channels; e.g., 43.1% of the particles ³ 3.2µm were removed from the fluid.
 
Beta Ratio (ß): Inlet Cum
Outlet Cum
For particles ³ 25.6µm, ß = 27.3


Figure 1
Effect of Flow Rate on Efficiency
2.7 vs. 7 gpm/10" Cartridge
200 mg/L ACFTD
Figure 1


Figure 2
Efficiency vs. Particle Size
at Different Times
Figure 2


Figure 3
Particle Removal Efficiency
Time Averaged Counts vs.
Delta P Averaged Counts
Figure


Figure 4
Pressure Drop vs. Time

Figure 4
 
 

Figure 5

Figure 5