|
�:s�_
<br /> �-,
<br /> , .� , .
<br /> .. .
<br /> r �
<br /> � � .
<br /> ' ENO PERfO�lATION OF A PEAFpkATED LA^EAAI.•
<br /> PR S�.�R.� DtSTRIBUTtO(�1 SYSTEM °
<br /> ao.. c... ,
<br /> 1. Select number oE perforated laterals 3 � T'°"u ' .
<br /> � ,,,�.. ,, .
<br /> �� , lar.� •f Ca���a�u� leMN(r iar
<br /> . U�1 4eM LaYw , ; hut leTw N h�1 r Mr�.ee.re�
<br /> 2. Select perforation spacing = -� fee� . """"' """ °°°"� �
<br /> , � r.,�e, �w. omw H..w�anr
<br /> . . .. , in�. us r+.u. ne
<br /> 3. Since perforations should not be placed closer than 1 ft. to �o�a,�'�'.�e�« �: ��%►�' �'°'
<br /> the edge of the rock layer (see diagram), subtract 2 ft. from ; '�''' � ' M�ao�brn Lecatd.�
<br /> . Cl�oe SoM l_oYw �t�em ai �ai�.a
<br /> the rock layer length. ' . . ,
<br /> � ONpMoI 5�11 hoA�*1 3torlfiW
<br /> 6e�a�Plwrq 3aM�ay�r
<br /> ��YQ 1��- f t. _ �� f eet. � TAp�pF PERFOFtATiON dI5C2{ARCES IN CPM
<br /> 4. Determine the number of spaces benveen perforations. Hesd PerEonHon diamcter(Inchn)
<br /> 'Divide the length above by perfc��:`.�: �Facng and round ►�n ���
<br /> down to nearest whole number. l.o, osb o.�a
<br /> 1 S 0.69 0.90
<br /> Length perf. spacing =�-3 ft.+3 ft. = �_spaces �b o�'0 ' i.i�
<br /> �3� �2� 3.0 0.98 • 1'8
<br /> 5. Number of perforations is equal to one plus the number of S:o i.za i.�
<br /> perforation spaces .
<br /> , , � . �Csa 1A(oot of head(or rrsidentlal systeau.
<br /> bUx LO leet o(head for other e�tabli�hmar,.. �
<br /> ��spaces + 1 = �� perforations/lateral .
<br /> . ' ALc��Oh�rl��1►f d f���T���O�rI Ird Y
<br /> 6. Nfultiply perforations per lateral by numb�er of laterals to �,�..�,.�., i`-"����n .o�,�n
<br /> ,�_,
<br /> get total number of perforations. Z.s ta ta_ Za
<br /> -'3�D'� l3 11Z_�� 26
<br /> T__--
<br /> 3.3 12 16 2S
<br /> �-- x �- = �perforations. a.o �� ts 23
<br /> ' ���.n,� �cs��.«, s.o �0 2
<br /> �. 7. Determine required flow rate by multiplyin _ �1 � ��
<br /> number of perforations by flow per perfo tion ��J � �
<br /> � . � ����� �
<br /> ; ,
<br /> n L,� �q .� c -�o
<br /> I �Q� _4'��/ _ � r.w�ro�u lourfL .i Oa a �ralllR dann r.s�Ul
<br /> �r, �� �,,� gPm.
<br /> I
<br /> I �
<br /> �
<br /> 8. If lateraLs aze connected to header pipe as shown on upper
<br /> 'i example, to select rsunimum required lateral diameter; enter �,✓��-.
<br /> i table with perforation spacing and number oE perforations ,,�'
<br /> � per lateral. Select uunimum diameter for ��
<br /> � pesforated lateral = inches.
<br /> � ,
<br /> ����_.���•�
<br /> � �..�,,..... .
<br /> w� �'
<br /> , r1T �'•'�j� ..r AA��~ .
<br /> � 9. If perforated lateral system is attached to manifold pipe near � ' �-�
<br /> ' the center, lower diagram, perforated lateral length and '"'�'"��"' �
<br /> �. +-
<br /> number oE perforations per lateral will be approximately one � �, "''"'""`�
<br /> half of that in step 8. Using these value�s, select minimum f �' �,,,.�''���_
<br /> diameter Eor perforated lateral = � ��eS• ��'''� 3 I,� �
<br /> �
<br />
|