'الملف رقم 10/1 X الامتياز النفطي بالبحرين' [و‎‎١‎١‎٥] (٤٩٤/٢٤٦)

pirection of the stream in that manner will continue until all of the oil,
ana j. - - - o- ..a gt *, nave been returned, to this tank,
whereupon the water stream will be diverted through the ballast line and
into the bilge water tank. When discharge of ballast water is completed,
atcv 11 be drawn from one of the other oil tanks and
pumped. ' ..ans > , 3 lanu pumps through the circulating line, displacing
wate ihe same v tank into which oil frcsn the sea line
had been placed, whence such water may subsequently be drained off. This
entire operation will be completed before gauging of the tanks from which
shipment is to be made or before any of the steps in oil measurement
described in thememorandum on that subject are taken,
/"v
I After full and careful consideration, the Company feel that the method
above outlined will be the simplest and most practicable one for handling oil
displaced from the sea line. Hie only possible objection to the method is
that it does not permit a direct measurement of the amount of oil returned
to the Sitrah oil tanks nor hence the amount of deduction required in the
oil-royalty account. A direct measurement of oil so returned, however, is
not necessary in the interests of practicable accuracy, as the volume of the
sea loading line can be closely computed by a simple calculation. The length
of the pipeline itself, from the 12" valve in the control house to the sea
end is 15,975 feet, inclusive of expansion bends, and its internal diameter
11,875 inches. There is also the sea hose, 175 feet in length and 8 inches
in internal diameter. The combined capacity of the two can be readily com
puted as 2,199,15 U.S. barrels (9,702 cubic inches per barrel,)
In order to provide against any possible loss of revenue to His
Excellency, however, the Company propose a figure of 2,160 barrels as the
assumed amount of oil returned to the tanks when the same is displaced from
the sea loading line. It is believed that the amount of 39.15 barrels
subtracted from the volume figure above computed will amply provide for
(1) a reasonable amount of error, (2) a correction of the computed volume of
oil to volume at 60° F. and (3) a small amount of oil that might remain lodged
in the pipeline. The Company further suggest an even amount of 294 tons as
being the assumed weight of the 2,160 barrels referred to above, as this is
approximately the weight of that amount of oil with an A,.. ,1, gravity of
30.9°, which is thought to be a fair average for the Bahrein oil.
I The Company propose, therefore, that on occasions when oil in the sea
loading line must be returned to the Sitrah oil tanks they follow the procedure
outlined above and deduct from the cumulative amount oi oil on which royal ty
is currently due to His Sxcellency an amount o 294 tons. snding a pei'iod
of observation and trial in actual practice, the Company suggest.- tiiat tne
foregoing proposal be agreed upon initially with the unaerstanning tnat
either the Company or His Excellency may be free to reconsi ier and re-open
the question at any time in the future when it may appear necessary or
advisable to either of them.