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07/21/2004 14:01 3202382343 HENTGES PAGE 09/�4 <br /> PRESSURE DISTRtBUT10N SYSTEM <br /> 1. Seiect number of perforated laterals � <br /> 2, Select perfor�tion specing �•� <br /> 3. Since perforations should not be placed closer than 1 ft to the edge of the rock layer, <br /> subtract 2 feet from the rock layer length. <br /> 63 minus 2 feet = _,,,_ 61 feet <br /> 4. Determine the numb�r of spaces between perforations. Divide the length above <br /> by the perforation spacing and round down to the near�st whole number. <br /> 61.0 divided 3.0 equals 20.3 spaces rounded down = 2� <br /> 5� Number of pertorations is equal to 1 plus the number of pertorated spaces in step 4. <br /> 20 spaces plus 1 = � 21 perfarations per lateral <br /> 6. Multipty the perforations per lateral by the number of laterals <br /> to get tot�i number of perforations. <br /> � X ___3 __ equals 63 tntal number of perForations <br /> 7. Determine the required flow rate by multiplying the number of <br /> perforations by the required p�rforations discharge frpm the table below. <br /> 63 perfarati�ns X 0.5fi hole discharge = 35 gpm <br /> Mp,XIMUM NUNBER OF QUARTER INC1-1 PERFORA710NS PER REQUIRED PER�ORATION DtSC11ARCiE <br /> �qTERAL�'p Q�}qRqN'TEE<10°!o bISCHAR(3E VARkATIdN 1N C3AL.LONS PER Mbh1U7E GPM <br /> PERF 5�'ACINC3 IN FEET 1.25 tN P�PE 1.S IN PIPE 2.O IN PIPE DISC.kEAD 7"/32 IN P�FtF 1/4 lN PERF <br /> Z 5 �4 ig 2g 1,0 a 0.68 U.74 <br /> 3.0 13 17 28 2.0 b 0.8 1.OA <br /> 3_3 12 16 25 e. U3ED FOR 31N(3LE FANNI.Y HONIES <br /> 4.0 11 15 23 b. USED FOR ALL 07WER APPI.IGATION <br /> 5.0 10 nm Z2 <br /> 8. If HEADER PIPE is connected to the END af the laterals, select minimum required lateral <br /> d4a+�r+eter from tab�e above with perfdration spacing and number of perforations pef <br /> . lat�ral. Select minimum diameter for the perfarated lateral. <br /> You have selected � 3.0 ft spacing and 21.0 perfis per later�l <br /> 2.00 inch minimum diameter laterals <br /> 9. ff HEADER PIPE is connected to the CENI"ER of the laterals, perFS per{ateral are 1/2, <br /> sele�t minirnum requir�d later�l diameter from table above with perforation spacing and <br /> number of perforations per Iater�I. Select mi�imum diamet�r for tfie pertorated la#eral. <br /> You have selected ft spacing and � perts per lateral <br /> �inch minimum diameter later8l . <br /> PAGE 7 OF 12 <br />