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<br />17
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<br />OJ1838
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<br />over, La rge ,a,r-ea,s..-of thera1il;ge;, ,-unf-av-ora-ble, geok.gic ,conditi ons
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<br />make it- impossible todevelapsuccessful wells within, area80~-
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<br />abtellrittin-g,li1e;pth, if at alL
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<br />Powerfor-pu-mping, -is rC{'j,.uired- for--allex€epH'lawing wells.
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<br />,Wi,ndmills in general, are the mo-st ,economical for this parpose.
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<br />,although they are useles$ during-per-iods-of-c-a-1mwhich '-in cer-
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<br />tainseas'ans of the year may 1-ast far sev,er,a-t weeks . For this
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<br />reason, -trey ,win4miU, weUsanq ,wells -of. mare' than moderate
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<br />depth are usu-allyequipped with a pump,j-ac-k-,and-an auxiU~ry
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<br />-gas engin~. In most ,of, the PaeHic,.sou,thwest--areathemaximum
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<br />d.epth,of. wellspumped:j>ywindmi1-lBis -onth-e order of 600 - BOO
<br />feet, "but.i-nparts:ofNew Me;xiea windmitls-,arel~Qmf"ing from
<br /><lepthee:f,l; 200 feet or more.' For thede'epest wells, windmills
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<br />with-whe,els,a.s targeas 'Z6,feetindiamete;p--are'l',cquirerl. For
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<br />-welts. with, 'pu-mp,li€ts--of~~:"300feet, wimlmHls with lB~20 foot
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<br />,diameter whee-Lsa,re--'Ulted, Th-e la.rge,:rmilllt,re<j:ui r-e he <1- vi er ,
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<br />,mo.re,'su-1is-tan-ti":-t-:su,pperting,t'owe rs, and ,where--auxi-liary ,m otor s
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<br />a.rereq.Q.r-eIi,:pi4.m-p-..j-;iok8-e<iuippedwith,~ounter'weight s are
<br />"ef9sektiaL -All -thEi~'ef-eat!>resad(i:t-othecostof the well and its
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<br />---ope'r;M;i(mr-,'andn.tu.r,ally'~he.-raGge:re'SGQ'rces ,in these rvice area
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<br />'mu'$~ besufUc-i~nt,t0'compen~ate fOr the added expenses.
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<br />In-a,r~ae', wh~re we Us "r6<1'1i re--a-u.d,Ua-r--y..moters' as' an aid to
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<br />windmills, operators occa~ioria.ll)'-find it economical to us'e power
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