CO sub 2 dehydration scheme aids Hungarian EOR project
- KFV Oil and Gas Co. (HU)
- Mitsubishi Heavy Industries Ltd., Tokyo (JP)
- Shell Oil Co., Houston, TX (US)
Use of a gas-dehydration process in a Hungarian enhanced oil recovery (EOR) project has permitted maintenance of CO{sub 2} supercritical pressures and economic gas movement rates. Since the early 1970s, carbon dioxide (CO{sub 2}) produced in Hungary's Budafa field has been used in several of the country's EOR projects. For the early projects, minimal processing was required because CO{sub 2} was injected into oil reservoirs close to the source field. In 1988, new facilities and a 33-km (20 mile) pipeline were installed to process and transport 35 MMscfd of CO{sub 2} in the supercritical state for injection into the Nagylengyel oil field. The longer transport distance necessitated that the CO{sub 2} be dehydrated to avoid corrosion and hydrate problems in the pipeline and injection facilities. Initially, conventional glycol dehydration processes were considered for Hungary. These, however, would have involved pressure reduction of the CO{sub 2} before dehydration to avoid excessive glycol losses. Recompression of the CO{sub 2} to pipeline pressure would also have been required. Instead, Glycerol Drying Process, which avoids these problems, was selected.
- OSTI ID:
- 5807400
- Journal Information:
- Oil and Gas Journal; (USA), Vol. 88:43; ISSN 0030-1388
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CARBON DIOXIDE
DEHYDRATION
OIL WELLS
CARBON DIOXIDE INJECTION
DISPLACEMENT FLUIDS
ENHANCED RECOVERY
HUNGARY
WELL STIMULATION
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
DEVELOPING COUNTRIES
EASTERN EUROPE
EUROPE
FLUID INJECTION
FLUIDS
MISCIBLE-PHASE DISPLACEMENT
OXIDES
OXYGEN COMPOUNDS
RECOVERY
STIMULATION
WELLS
020300* - Petroleum- Drilling & Production