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. r; <br /> ' / ,. <br /> � , PRESSURE DI TR�B�ITTO�t S�'STR1lR EP�� PERFORATION OF A PERFORATED LATERAL <br /> WCM COYN <br /> ect number of perforated laterals� T,r,,, � <br /> �� <br /> •�,���;..,�:..,. - ......�..,,,.F�.�. • <br /> Select perforaHon s aQnp t:+t� I.enmp� ,�K of GeoiuUl• Fobrle (a far- <br /> P p =� feet. . ���x.:.... `Or" :.��Ilh',d".a���.tuow cove..A <br /> � P�rlor Iloo prlll�d Herl:onlolir <br /> 3. Since perforaHons should not be placed closer than 1 ft. to __M'° � �« T�� <br /> �/i P • A1 L�e�l 12'lo Eep� <br /> the edge of the rock layer(see d�agram),subtract 2 ft. from �.:��:�` ����'� ����•• � � �� R�` `°'•` <br /> t����, . . .: ..., <br /> the rock layer length. �%•' �10fp����wl�d al <br /> //�/ ��;:;. <br /> Cl�ap Eond („orn S�I�em ef La��ro� <br /> l� � . ��r:?•i•w;:..:.:;��.•.:'� � �• • ' <br /> Y J / ..�t"'�""�..",1/' <br /> �� C7 alObal seli pteywt lealll�d <br /> RodcLya�2 ft. = fee� •.�a•�«��s�C�., <br /> TABLE OA AERFORp770N DISCHARGFS JN CPM <br /> 4. Determine the number of spaces beh,veen perforaHons. Hesd Perforatlon dLmeter(Inches) <br /> Divide the length above by perforation spadng and round <br /> `down to nearest whole number, . '/� '�. <br /> / .o� os6 oaa <br /> Length perf. spacing = !�� ft.+ -3 ft. =�a spaces iob o.� o:� <br /> (3) . (2) 2s a.sv �a� <br /> 5. Number of perforations is equal to one plus the number of �� �•� i.<i <br /> perforation spaces . . s.o �.� ,.� <br /> ,' <br /> �^� � �Use 1.b foot of he�d for reetdmHal syetems. <br /> v� spaces + 1 = � perforations/lateral � �bUse 20 feet of hesd fo�other establLshments <br /> 6. Multiply perforations per lateral by number of laterals to ���'�'*�.,`:�"'""'" <br /> get total number of perforadons. �""'' �� 1 u�ch .0 inch <br /> `� ��� � 14 J.S_ 28 <br /> ''�'u-� 13 ---�1Z� 26 <br /> 1■ia�,i. X pnt,/l�tenl= �y perforaEions. 4.0 11 �6 ZS <br /> S.0 10 �S Z3 <br /> 7. Determine required flow rate by mulHplying la 2Z <br /> number of perforations by flow per perforation � <br /> �y X0. 7�_S- . <br /> �� i� --8Pm• .���� ., �a <br /> . �.K oKinin,.,on :.iru, <br /> wr�" <br /> 8. If laterals are connected to header pipe as shown on upper <br /> �� <br /> example, to select minimiun required lateral diameter enter <br /> table with perforation sparing and number of perforations �'�-� <br /> per lateral. Select nurumum diameter for """� <br /> perforated lateral = `'�� <br /> inches. \� <br /> . `"°".�..�".a;�,��.p� j� /I <br /> ���.w wr.s r.� / <br />'• If perforated lateral system is attached to manifold pipe near � F�. <br /> � i��� '�� �l <br /> the center, lower diagram,perforated lateral length and '�" <br /> number of perforations per lateral will be approximately one ������ <br /> half of that in step 8. Using these values select minimum � ��'°'�''�"`^� <br /> diameEer for perforaEed lateral - ,� • `""' * �' <br /> ___�___._..,inches. *✓�"; ` <br /> • • ' r r.""''n t *'...�S'�'� <br /> ' . �,,,^' ,�-3 `� <br /> ��� <br />