Whether your interest concerns subsea pipelines, transmountain pipelines,
arctic pipelines, multiproduct batch pipelines, waxy crude pipelines, slurry
pipelines, slack-line flow, multiphase flow, dispersions, emulsions, hydrates,
distribution and collection networks, or similar real-world problems, rest
assured that Carnahan has "been there and done that". This practical
experience is at your service.
- Waxy crude experience includes numerous onshore and subsea pipelines,
in the North Sea, the Mediterranean, offshore West Africa, Gulf of Mexico,
Venezuela, Colombia, South China Sea, Newfoundland, Alaska, California,
Louisiana, Texas, Michigan and China.
- Transmountain pipeline experiences includes the Alyeska Pipeline
(Brooks Range), Jet Fuel Pipeline in Guam, and Tarim Basin oil transport
pipeline preliminary design. The Alyeska Pipeline is designed to operate in
slack-line mode. High RVP fuel and volatile oil pipelines are usually designed
to operate as tight lines, but the transmountain profile must be taken into
account in the design and operating plan.
- Multiproduct batch pipeline experience includes the Interstate Energy
Company pipeline in Pennsylvania, a buried, insulated, heated oil pipeline
system for transporting low-sulfur fuel oils to electric power plants in
Pennsylvania and New Jersey. The product slate ranges from GE-Grade No. 1 Fuel
Oil to 140 F Pour Point Nigerian Residuum. Another multiproduct system is the UK
National Fuel Distribution Grid, which was modeled and reviewed at the request
of British National Oil Corporation.
- Arctic pipeline experience includes review of hydraulics and
slack-line flow behavior of the Alyeska Pipeline System, as part of the
Design Review Team designated by the U.S. Department of the Interior.
Carnahan also reviewed preliminary designs and studies for transportation of
North Slope gas to the "Lower 48". Carnahan reviewed plans of El Paso LNG,
for a proposed project involving a gas pipeline parallel to the Alyeska
Pipeline, LNG production at Valdez, LNG transportation via ocean carriers to
California, re-gasification of the LNG for distribution via the El Paso pipeline
system. Carnahan reviewed thermophysical properties of North Slope gas for the
Canadian Arctic Gas Group, relevant to their proposed design of a pipeline
direct from the North Slope to the Chicago area. Carnahan reviewed dehydration
and conditioning requirements of North Slope gas, and determination of
compression requirements, for Northwest Energy Company, whose proposed pipeline
would parallel the Alyeska Pipeline, then extend to the northern end of the
Alcan Highway and follow that right-of-way to the Pacific Northwest, and
distribution via the existing Northwest Energy Company pipeline system in the
Carnahan is "hands-on" experienced with commercial application software used for steady-state and transient modeling of pipeline systems, on land and subsea, including OLGA , PipeSim , MultiFlash, and PVTSim