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' G"t::: <br /> " rnzFSS_L�RE DIST'�2t�Trrt��T 5��;;-��; . <br /> 1. Select number of perforated laterals -�, <br /> 2 Select perforation spacing=�,� {�, <br /> 3. Since perforations�sHould not be placed cioser than 1 ft to <br /> the edge of the rock layer (seQ p. E-14),subtract 2 ft. firom the <br /> rocic Iayer length. <br /> �1..L�� <br /> ���.,�•2 ft. _=�'L ft <br /> � � <br /> 4. Deiermine the number of spaces between perforations. <br /> Divide the length above by perforation spacsng and round E-17a � <br /> down to nearest whole number. <br /> N "K 1r.!Sir.s•`'� <br /> He.s�d Perforaeon dismetar(inchesl <br /> Length perf. spa�cing � '^, ft+ :�. ft � � �� spaces -- �is2 �ia <br /> • (3) (2) �.a � osb o.;a <br /> is o.� o.�o <br /> 5. Number of perforations is equal to one plus the number of z� o.so l.a► <br /> ?S 0.89 ].l7 <br /> perforation spaces . 3.0 098 118 <br /> • 4.0 1.I3 i.4� <br /> ly SP8C25 �i- Z �,��perforations/Iateral —�:2 i16 1.65 <br /> aUs�lA foot of head for rnidmtia!rystems. <br /> bUs�20 feec of had for otl+er establisha�mte <br /> 6. Multiply perforations per Iateral by number of laterGls to � � <br /> � get total numbes of perforations. . E-17b <br /> I ��.e...r...r..r,..�.ar^�..�..rr�.r� <br /> �e�,.t, x pe��i�,t= y�. perforations. �-..-,�°"�.`..,......�'. <br /> �,,y"�'' 1 inch 1.5 u�ch 2.0 uicn <br /> 2S 14 18 2g�! <br /> 7. Determine reqvired flow rate by multiplying ' 3.0 13 1� ?6 ' <br /> 3.3 12 16 ' ?S <br /> number of perforations by flow pez perforation � a.o 11 ls �; <br /> (see page E-1� s.o to la �� . <br /> 4�. .�U <br /> _ � <br /> � X aa�+�a� - �m' E-IS <br /> � ...,....�.., �....�..�.�_,..,o. <br /> 8. If laterals are connected to header pipe as shown on page E- <br /> I5, select minimum required lateral diameter from ;able on � �.�. <br /> page E-17; enter table with perforation spacing and number � �,.�'' �- <br /> .of perforations per lateraL Select mininlum diameter for ��� <br /> perforated lateral,= inciles. <br /> E-i2 <br /> ��-' I <br /> 9. If perforated lateral system is attached ;o manifold pipe near �""" � <br /> the center, as on page E-12, perforated lateral leagth and n'T�:ti �_� .',��. .' <br /> number of perforations ��r lateral will be approximately one ''�""'""' <br /> half of that in step 8. Using these values, selecr�inimum __ . � '�""" <br /> diameter for perforated lateral from page E-i7 as ') /�.�_, -�,�.,�� -_-- <br /> ' inr�oc <br />