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. 't <br /> OSTP Non-Level Pressure Distribution <br /> ^;tinny ota ution UNIVERSITY <br /> Poll <br /> Design Worksheet OF MINNESOTA <br /> Control Agency <br /> 7. Calculate Flow in Gallons Per Minute for Lateral 1 <br /> Perforation Discharge(GPM) <br /> A. Select Perforation Spacing: l� feet Perforation Diameter <br /> B. Length of Laterals =Length of STA(Line 1)-2 Feet ~lead(fr) /32 <br /> e e <br /> 2 ftY' �' �� 1.0' 0.18 0.41 0.56 0.74 <br /> 1.5 0.22 0.51 0.69 0.9 <br /> 2.0` 0.26 0.59 0.80 1.04 <br /> C- Number of Perforation Spaces =Divide the Length of Lateral 1 (7.6)by the 2.5 0.29 0.65 0.89 1.17 <br /> Perforation Spacing(Line 10)and round down to the nearest whole number. 3.0 0.32 0.72 0.99 1.27 <br /> Check Table II to ensure the maximum number of perforations is not exceeded. 4.0 0.37 0.73 1.13 1.47 <br /> ft/ ® ft= Spaces 5.01 0.41 0.93 1.26 1.65 <br /> t frwt Dwiallings•a•ich 3;16 inch to 1/4 inch <br /> D. Select Type o Manifold Connection End or Center): perforations <br /> yP f f ( ) ❑End Center <br /> Dwellings caith 118 inch perforat ioix <br /> E. Number of Perforations=Number of Perforation Spaces(Line 11)+ 1. =feat Ocher a tablishments and:-.STS�.,ith 3;t6 <br /> ;3 inch to 1;4 Inch perforations <br /> �.��,� SpdCE5+1 = I"-f� '�' Other e tablishments and ro,ST,with 118 inch <br /> 5 fent <br /> F. Flow Rate for Lateral 1 =Number of Perforations X Flow Rate Per Hole for Lateral 1 perforations <br /> ` X 0, = ®GPM for Lateral 1 <br /> 8. Calculate the Gallons Per Minute Per Foot for Lateral 1. This value will then be used to make <br /> sure that the gallons per minute per foot is equivalent in each lateral <br /> Gallons Per Length= Flow Rate for Lateral 1 divided by Length of Lateral 1 <br /> �+ r 19.31 _ .- GPM/Foot <br /> 1.1<. <br /> ., t _ <br /> +- <br /> i <br /> t. 1 <br /> r' <br /> c <br /> ,d <br /> 9. Balance flows for other lateral lengths,spacing,and size. <br /> If you end up with large perforation spacing(T is max)lower the initial spacing for Lateral 1 (Line 7.A)or the perforation size(Line 6) <br /> Lateral 2 GPM=Length of Lateral X Gallons Per Minute Per Foot(Line 8) <br /> ft X � � GPM/ft= .j' GPM <br /> Number of Perforations=GPM/Flow Rate for Lateral 2(Line 6.2) Check Table to ensure the maximum number of perforations is not <br /> exceeded. <br /> .;e, . tp = Perforations Select Type of Manifold Connection(End or Center): <br /> Spacing=(Length of Lateral)/(Number of Perforations-1) ❑End ❑Center <br /> //�� j , <br /> Perforations-1} _ ` ' ftIJ, <br /> 29 <br /> K 6L <br /> 'u.✓J . �� ` �►Sd' ' yO1i'�/�tis.•���ta� �O✓!F/�9..r j� <br />