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man000174-142
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    This material is made available to facilitate private study, scholarship, or research. It may be protected by copyright, trademark, privacy, publicity rights, or other interests not owned by UNLV. Users are responsible for determining whether permissions are necessary from rights owners for any intended use and for obtaining all required permissions. Acknowledgement of the UNLV University Libraries is requested. For more information, please see the UNLV Special Collections policies on reproduction and use (https://www.library.unlv.edu/speccol/research_and_services/reproductions) or contact us at special.collections@unlv.edu.

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    University of Nevada, Las Vegas. Libraries

    i \ c le a n in g t o the bottom o f the w e l l . DAILY LOG AMD REPORT; C o n t r a c t o r s h a l l m a in ta in and f u r n i s h to the E n g in e e r , a d a i l y d r i l l i n g r e p o r t show ing a c c u r a t e ly th e fo rm a t io n and type o f m a t e r ia ls e n c o u n te re d , as w e l l as such o th e r In fo rm a l t i o n as the E n g in e e r may r e q u i r e fro m tim e to tim e. C o n tra c to r s h a l l o b t a in sam ples o f a l l fo rm a tio n s en co u n tered d u r in g d r i l l ­in g o p e r a t io n , s a id sam ples to be p la c e d in Mason j a r s to be f u r n is h e d by Land Company; d ep th a t w hich each sam ple o b ta in e d s h a l l be l a b e l e d on th e j a r . PACKING BETWEEN CASING AND CONDUCTOR P IP E ; A f t e r c a s in g has been i n s t a l l e d , C o n tra c to r s h a l l pack sp ace betw een c a s in g and con d u ctor p ip e w it h cement and sand g r o u t , 50$ cement and 50$ san d , pumped un der p r e s s u r e betw een the two c a s in g s and e x te n d in g as f a r as p o s s i b l e In to fo rm a­t i o n a t the bottom o f the c o n d u cto r p ip e . STRAIGHTNESS ? C o n t r a c t o r a g r e e s t h a t when w e l l s a re com pleted th ey s h a l l be s t r a i g h t enough f o r the i n s t a l l a t i o n and s u c c e s s fu l o p e r a t io n o f a s h a f t - d r i v e n deep w e l l t u r b i R B ^ i t h b o w ls th a t w i l l m easure 1 5 -3 /8 in c h e s 'In d ia m e t e r . C a s in g s h a l l b e caged to a d ep th o f 200 f e e t b e lo w to p o f w e l l . REDUCTION IN SIZE OF CASING; I f in the c o u rs e o f d r i l l i n g s a id 1 6 -in c h w e l l s , sh o u ld I t become im p r a c t ic a b le to c o n tin u e w it h 1 6 -In c h w e l l c a s in g beyond 5 0 0 -fo o t d e p th , the C o n t r a c t o r may, w ith th e a p p ro v a l o f the E n g in e e r , p ro c e e d w ith the w ork o f d r i l l i n g s a id w e l l s to the r e q u ir e d d ep th u s in g the n ex t s i z e c a s in g most p r a c t i c a l , w hich s h a l l b e not l e s s than 12 in c h I . D . d o u b le w a te r w e ll c a s in g 8 g a u g e . Minimum amount o f 1 6 -In c h c a s in g to b e I n s t a l l e d fro m to p o f w e l l s s h a l l be 500 f e e t . - 5 -