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r - part - usaid
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further analysis has now been completed azd Is presented in this<br />
report, E ~ c ~ uthe s ~ figures developed in this report are, in<br />
some cases, considerably differe~t from those arrived at in the<br />
previous reports, and the aethodolagy used differs, some<br />
co-ents are appropriate here.<br />
The ?ape analysis was ws:* *den at the time when there<br />
existed virtually no CGDP project experience from which ta draw.<br />
It sets out an excellent metkoddogy for the e~ti~atiun of the<br />
casts 02 well constr~ction. The nodel is very detailed, with<br />
sufficient variables to allwd it be used for any pr~p~sed<br />
drilling operation in Somlia, The methodology resulted in an<br />
analysis that ciosely predicted the actual cast of we31<br />
construction (Pape, 1982 F.45).<br />
The Brandon analysis estimated an average direct cost for<br />
basic well construction of 553,E00 {Brandon, 2.984, p.29). This<br />
appears deceptively close to the latest available figure of<br />
$54,030 for Bay rec'on drilling. However, the three analyses<br />
included significane variation in estimztes af the cost of<br />
surface casing, we31 casing, screen and diesel pump. Differing<br />
costs =or screen and casing reflect differing standards<br />
required, Expaxience deternines the appropriate standards for a<br />
pzrticular region. &. ~r.2 variations in the estimates made are as<br />
follows:<br />
Latest figures Erandan ~npe<br />
-------------- *------ ------""--*---<br />
"<br />
steel' P.V. C. Steal Steel P-V-C.<br />
8'' Casing 49 43 7 6 75 18<br />
Bst scweer, 25 57 104 84 37<br />
Surf. casing a5 -- 144 3.44 --<br />
Diesel pan~ $15,225 $20,0i!fJ $13,500<br />
7<br />
'(steel supplied fron NairzSi, transported by road (+16%<br />
Erelqhtf P.V.C. supplied frox C.S.A., transported by container<br />
(i25$ freight), figures in Y.S.5 pez neter including freight<br />
The zest reze~t estixates are shown in sumary form in<br />
Tables 2 . throxgh 2.4.4. Ths Frandon analysis cost of<br />
$53,550 does not include any allowacce for capital equipment<br />
purchase, depreciation, or repairs an-< maintenance. The most<br />
recent estimate of Sf4!CZO qxozad abov~ fcs operatians in the<br />
3ay region includes a re~listic capital replacement charge, and<br />
an annual rspairs and maintecance charge for ail equipment,<br />
based on l3% of the capitzl costs.<br />
The conszruction cost, LtincSud' 7- sunk capital costs3',<br />
arrived zt in the Grandon anzPysis is of the order of $188,000,<br />
{Brandan, 1884, p.43). T ~ E +~~Lysis presented in this report