|
The Strategic Petroleum Reserve (SPR)
contains a number of domestic and
foreign crude oils. For the most part,
these are of light gravity (30 to 40°
API) and contain less than 2.0 mass
percent total sulfur. These crude oils
are not segregated in storage but are
commingled according to their sulfur
content into two categories - one sweet
and the other sour. For the purposes of
the SPR, sweet crude oils are defined as
containing a maximum of 0.50 mass
percent total sulfur, while sour crude
oils can contain up to a maximum of 1.99
mass percent total sulfur. Only similar
quality crude oils are commingled in
storage, with no mixing of sweet and
sour streams being practiced.
The
crude oil inventory comprising each of
the eight SPR streams is stored in from
two to 13 caverns, depending on the
site. The attached assays for these
eight streams is a volumetric average of
the assays for the individual caverns
comprising each stream.
Any
questions regarding the assays or the
analytical methods used in obtaining
these should be addressed to Mr. Ray
Ortiz, Industrial Specialist, Petroleum
Reserves, US Department of Energy, RM:
3G-070, 1000 Independence Ave. SW,
Washington, DC 20585, tel: 202-586-4398,
fax: 202-586-7919.
To ensure
that the following assay files open
properly as Excel spreadsheets, use the
following procedure. Using the mouse,
right click on each, select "Save Target
As ...", then save in the folder of
choice as a Microsoft Excel Worksheet.
Crude Oil Assay Manual
 Click Here to download the Excel
Viewer program
|
