Opportunity of Enhanced Oil Recovery Low Salinity Water Injection - From Experimental Work to Simulation Study up to Field Proposal - (SPE-164827)

Callegaro, Chiara; Bartošek, Martin; Masserano, Franco; Nobili, Marianna; Parracello, Valerio Parasiliti; Pizzinelli, C. S.; Caschili, A.

doi:10.3997/2214-4609.20130888

Cited by 10 publications

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Hybrid CO₂ EOR using polymer‐assisted carbonated low salinity waterflood to improve CO₂ deliverability and mobility

2017

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A hybrid polymer‐assisted carbonated low‐salinity waterflood (PCLSWF) is a low‐salinity waterflood‐based enhanced oil recovery (EOR) co‐injecting CO2 and polymer. In the hybrid process, the low salinity of make‐up brine enhances CO2 deliverability into a reservoir due to the salting‐out phenomenon. This PCLSWF introduces the following synergetic effects: 1) wettability modification; 2) decreasing oil viscosity; 3) increasing brine viscosity. These effects are evaluated in core‐ and pilot‐scaled systems. First, the PCLSWF induces ion‐exchange of Ca2+ and improves wettability following MIE (multi‐components ionic exchange) theory. The wettability modification effect is enhanced in the pilot‐scaled system because the low pH of the PLCSWF dissolves more cemented calcite mineral producing Ca2+ and resulting in more ion‐exchange of Ca2+. Secondly, a lot of dissolved CO2 in brine is transferred into oil, consequently decreasing the viscosity and density of oil. Finally, polymer injection increases the viscosity of the displacing fluid. Although it undergoes mechanical and chemical degradation, it still improves mobility ratio and sweep efficiency. In the pilot‐scaled system, the PCLSWF enhances oil recovery up to 12%, 6%, and 2% over the low salinity waterflood (LSWF), low salinity polymer flood (LSPF), and carbonated low salinity waterflood (CLSWF) respectively. The optimization process maximizes the efficiency of the PCLSWF, and it is recommended that tertiary PCLSWF is deployed following the secondary CLSWF. The optimized injection design of the PCLSWF increases the net present value up to 18% more than the LSWF. © 2017 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Hybrid CO₂ EOR using polymer‐assisted carbonated low salinity waterflood to improve CO₂ deliverability and mobility

2017

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Full life cycle review of water-based CEOR methods from pre-injection to post-production

Shirazi,

Mahani,

Tamsilian

et al. 2024

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Enhanced Oil Recovery Methods

Romero‐Zerón

2016

Exploration and Production of Petroleum and Natural Gas

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Oil and natural gas remain the dominant components of the worldwide energy system. The International Energy Agency (IEA) predicts that global energy demand will increase by at least 30 % over the next 20 years. It is expected that 99.7 million barrels per day will be needed in 2035. Therefore, the world economy depends on the availability of oil and natural gas resources, advances in oil production technologies, the development of alternative energy sources, and the existence of reliable energy supply routes. At present, the average worldwide oil recovery factor after primary and secondary oil recovery is in the order of one third of the total original-oil-in-place depending on the reservoir characteristics; hence, significant amounts of oil are left in the formation. To achieve oil recovery factors higher than 30 % from mature reservoirs, it is necessary to implement enhanced oil recovery (EOR) processes. Consequently, EOR methods will become increasingly important in the future. This chapter presents a brief description of the most common EOR processes as well as information on recent developments and field applications.

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Opportunity of Enhanced Oil Recovery Low Salinity Water Injection - From Experimental Work to Simulation Study up to Field Proposal - (SPE-164827)

Cited by 10 publications

References 4 publications

Hybrid CO₂ EOR using polymer‐assisted carbonated low salinity waterflood to improve CO₂ deliverability and mobility

Hybrid CO₂ EOR using polymer‐assisted carbonated low salinity waterflood to improve CO₂ deliverability and mobility

Full life cycle review of water-based CEOR methods from pre-injection to post-production

Enhanced Oil Recovery Methods

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Opportunity of Enhanced Oil Recovery Low Salinity Water Injection - From Experimental Work to Simulation Study up to Field Proposal - (SPE-164827)

Cited by 10 publications

References 4 publications

Hybrid CO2 EOR using polymer‐assisted carbonated low salinity waterflood to improve CO2 deliverability and mobility

Hybrid CO2 EOR using polymer‐assisted carbonated low salinity waterflood to improve CO2 deliverability and mobility

Full life cycle review of water-based CEOR methods from pre-injection to post-production

Enhanced Oil Recovery Methods

Contact Info

Product

Resources

About

Hybrid CO₂ EOR using polymer‐assisted carbonated low salinity waterflood to improve CO₂ deliverability and mobility

Hybrid CO₂ EOR using polymer‐assisted carbonated low salinity waterflood to improve CO₂ deliverability and mobility