Economics of Alaska North Slope gas utilization options Page: 90 of 253
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Figure 5.1 is a schematic diagram illustrating the gas and liquid flows from PBU for the LNG and
the GTL conversion projects. It is assumed that all facilities outside the PBU boundary are independently
owned and operated and are not part of the PBU facilities. It is possible that the gas conditioning plant could
be owned by PBU and benefit from cost sharing with the existing PBU Central Gas Facility (CGF), which
is currently processing 7.5 BCFPD of gas. However, the economics for both options assume the gas
conditioning plant is built by the gas project developers.
PBU Unit Boundary
PBU -BCentral Residue gas
Compression =B
Plant PBU - Central Gas =U Residue Gasp a 1150 BTU/SCF gas
Facilities (CGF) Conditioning 1
Plant
Reinjetion tGTLO option
& local use Miscible . -<- GTL Plant
Injectant (MI) B -
o GTL Liquids
Raw gas in NGLs n LNG Option
-a I
?r Y
Crude oil & , TAPS I
Condensate Ps #1
fl111t 11113313113133113!Hn113131111311fl233131331113t 31t111113H!!11113-
800 mile/48 in. oil pipeline T 800 mile/42 in. gas
to Valdez, Alaska ) A pipeline to Valdez,
Alaska
S
* A representative gas analysis for i
PBU CGF residue gas is given in
LTable 5.1. 1 Oil Tankers NG lIt - - -> LNG Tankers
L-----------------i
Figure 5.1. Schematic of gas and liquid flows from PBU.for gas sales options.
The LNG project and the GTL plant are considered stand-alone entities that are separate from the
gas producing units as well as the Trans Alaska Pipeline System (TAPS) operations and crude oil tanker
delivery system. This enables the incremental investment required to market the presently unmarketable gas
to be examined separately from the oil and gas extraction operations at PBU and PTU. PBU and PTU
operations are examined separately to assess the effects of the gas projects on their economic value.
5-2
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Thomas, C. P.; Doughty, T. C.; Hackworth, J. H.; North, W. B. & Robertson, E. P. Economics of Alaska North Slope gas utilization options, report, August 1, 1996; United States. (https://digital.library.unt.edu/ark:/67531/metadc678645/m1/90/: accessed March 19, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.