Offshore unloading of semi-pressurized CO2 to an oilfield

Aspelund, Audun; Weydahl, Torleif; Sandvik, T.E.; Krogstad, Harald E.; Wongraven, L.R.; Henningsen, Roar; Fivelstad, Jan; Oma, Narve; Hilden, Tor

doi:10.1016/b978-008044704-9/50371-2

Cited by 4 publications

(2 citation statements)

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“…The results show that long distance dry CO 2 (gas phase) transportation offshore is possible, but may not be an effective technique or solution for heavy oil recovery which require high injection pressure just as any EOR. This argument is supported by [7] that stipulate typical CO 2 injection pressure in the North sea to be between 200-300 bar. Recompression will be inevitable in such circumstances to meet the EOR objectives.…”

Section: Dry Gas (Co 2 ) Phasementioning

confidence: 88%

Heavy Oil Recovery: A Cold Process Using CO<sub>2</sub>-EOR Technique

Tchambak

Oyeneyin

Oluyemi

2011

AMR

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Owing to substantial improvement in enhanced oil recovery (EOR) technologies and significant decline in discovery of light and medium crude oil fields, the heavy oil development is progressively receiving considerable attention to fill the supply gap. Cold heavy oil production (CHOP) using captured carbon dioxide (CO2)-EOR technique was investigated using the state-of-the-art Integrated Product Modelling packages of Petroleum Experts as part of the Well Engineering Research Group unconventional oil reservoir management studies being undertaken at Robert Gordon University. Beyond ascertaining the feasibility of the CHOP using CO2-EOR, the objectives of the investigation were to establish the process requirements at the onshore facilities based on series of parametric studies and to enhance the understanding of the subsea integrated injection and production systems during the injection process. The injection system consisted of an injection well connected to a 240 km subsea pipeline transporting CO2from an onshore compression station. The production system included a topside separator connected to the production well via a 2km riser. A broad range of reservoir production history was used and the simulation results indicate that heavy oil displacement was easily achievable under miscible conditions (i.e. high reservoir pressure), but the production trend was strongly influenced by the reservoir characteristics (i.e. GOR, WC, Pressure).

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Section: Dry Gas (Co 2 ) Phasementioning

confidence: 88%

Heavy Oil Recovery: A Cold Process Using CO<sub>2</sub>-EOR Technique

Tchambak

Oyeneyin

Oluyemi

2011

AMR

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“…The CO 2 is liquefied, stored and loaded to a CO 2 ship, which transports the CO 2 offshore. An offshore unloading system including pumping, heating and transfer of CO 2 to the injection well is required, however, no storage is needed offshore as batch injection actually is favorable for the oil recovery [12]. The gas specifications for ship transport are stricter than for pipeline transport both for NG and CO 2 .…”

Section: Ship Transport Of Ng and Comentioning

confidence: 98%

A liquefied energy chain for transport and utilization of natural gas for power production with CO2 capture and storage – Part 4: Sensitivity analysis of transport pressures and benchmarking with conventional technology for gas transport

Aspelund¹,

Gundersen²

2009

Applied Energy

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CO₂Transport by Ship

Yoo

2015

Handbook of Clean Energy Systems

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CO 2 is liquefied to be transported by ship, and it is currently a fully commercialized technology to transport liquefied gas by ship. At present, there is no technical barrier for CO 2 carrier to be realized, because shipping industry has accumulated experience of handling liquefied gases for long time, and they categorized CO 2 is as less hazardous gas for transport. However, there is a commercial barrier that total CO 2 shipping cost is relatively expensive considering uncertain profits from transporting CO 2 as cargo of a ship. In addition, CO 2 shipping requires additional facilities such as liquefaction plant, temporary storage in CO 2 export terminal, CO 2 carrier, and another temporary storage in CO 2 import terminal. All components of CO 2 shipping are considered for the economic assessment of CO 2 shipping for finding economically optimal CO 2 shipping chain. A feasibility study estimated costs of CO 2 shipping can be more cost‐effective method than pipeline for a distance between 200 and 300 km for total CO 2 transport amount of 10 Mt/yr. Furthermore, CO 2 network can provide optimized solution for CO 2 transport by combining CO 2 shipping and pipeline. For commercial CCS projects in the near future, CO 2 shipping can support CO 2 pipeline network and enable more cost‐effective and reliable CO 2 transport.

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Offshore unloading of semi-pressurized CO2 to an oilfield

Cited by 4 publications

References 0 publications

Heavy Oil Recovery: A Cold Process Using CO<sub>2</sub>-EOR Technique

Heavy Oil Recovery: A Cold Process Using CO<sub>2</sub>-EOR Technique

A liquefied energy chain for transport and utilization of natural gas for power production with CO2 capture and storage – Part 4: Sensitivity analysis of transport pressures and benchmarking with conventional technology for gas transport

CO₂Transport by Ship

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Offshore unloading of semi-pressurized CO2 to an oilfield

Cited by 4 publications

References 0 publications

Heavy Oil Recovery: A Cold Process Using CO<sub>2</sub>-EOR Technique

Heavy Oil Recovery: A Cold Process Using CO<sub>2</sub>-EOR Technique

A liquefied energy chain for transport and utilization of natural gas for power production with CO2 capture and storage – Part 4: Sensitivity analysis of transport pressures and benchmarking with conventional technology for gas transport

CO2Transport by Ship

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CO₂Transport by Ship