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PRESSURE U[S1 R[B Ti N SyST'i M <br />1. Select number of perforated latt-rats __ <br />2. Select perforation spacing = _ ft. <br />3. Since perforations iwuld not be placed closer than I ft. to <br />the edge of the rack layer (see p. E -13), subtract 2 ft. from the <br />rock laver length. <br />4. Determine the number of spaces between perforations. <br />Divide the length above by perforation spacing and round <br />down to nearo,t whole number. <br />Length pert. spacing = _ _ ft.. _ ft. spaces <br />(3) (2) <br />5. Number of perforations is equal to one plus the number of <br />perforation spaces . <br />spaces + I = perforations/lateral <br />6. Multiply perforations per lateral by number of laterals to <br />get total number of perforations. <br />laterals '/:sera; —.—perforations. <br />7. De--et-:nine recui-red fl.,., rate by mul~-iplying <br />number of perforations by flow per perforation <br />(see page E -17" <br />8. If laterals are connected to header pips a:; shown on page E- <br />15, select minimum required lateral diameter from table on <br />page E-17; enter table with perforatit,n ;pacing and number <br />of perforations per lateral. Se'.t,et minimum diameter for <br />p:'rtorated lateral = _ inche,. <br />�. tf perfrrl!c;l IaF,'r stem is attached to manifold pipe near <br />the centt'r, ,i-, can page F-12, perforated lateral length and <br />nun- !i- � r of porforaliorts per lateral will be approximately one <br />half of that i1) step 8. Using tlwsp values, select minimum <br />diameter for perforated lateral from page E-17 as <br />inches. <br />E-17a <br />13LEOFf'fRFQRATI()N[)l�:'L�RGES <br />Head f ,>rtr c.,utm ]tame; r h:ukesl <br />Z a—.--__._.-_t%a <br />1.0a OSc <br />0 ; 4 <br />1.5 069 <br />090 <br />2.Ob <br />2.5 <br />3.0 <br />4.0 1.13 <br />l 47 <br />5.0 1.Z¢ <br />1 6 i <br />a Use 1.0 foot of head ft:r re:,tdt•nual syslem; <br />bUse 2.0 feet of head for other ,.ytablis;:ments <br />E-17b <br />wuo� Jtw,ey eiaev a orr. mce p.no.�, a ps a.u.: e i <br />w.a... � 4a Ournge • w+m <br />apt POq� <br />1.2> inch <br />1.5 1nC;: 21" V — <br />3.0 <br />3.3 <br />l? <br />16 25 <br />4.0 <br />tl <br />is <br />.5.0 <br />10 <br />la <br />F-1�-' <br />'�crL•�c <br />