CO2-EOR in China: A comparative review

Hill, L. Bruce; Li, Xiaochun; N, Wei

doi:10.1016/j.ijggc.2020.103173

Cited by 112 publications

(63 citation statements)

References 14 publications

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“…Advanced CO 2 -EOR technologies have created the possibility of CO 2 separation from the produced oil and re-injected into the formation, which optimizes the potential of CO 2 storage in depleted oil reservoirs during CO 2 -EOR . Thus, employing the enhanced oil recovery (EOR) technique has become ultimately critical to improving oil recovery from mature hydrocarbon reservoirs …”

Section: Introductionmentioning

confidence: 99%

“…In terms of economic, environmental impact, and oil recovery, CO 2 injection is the most optimal EOR technique. , In addition, CO 2 -EOR incorporated with CO 2 storage has shown significant potential for enhancing oil recovery and reducing greenhouse emissions. ,, CO 2 storage in subsurface formations is achieved by four mechanisms, which include , mineral trapping, residual trapping, dissolution/solubility trapping, and structural/hydrodynamic trapping. However, these trapping mechanisms rely on the characteristics of the reservoir storage unit …”

Section: Introductionmentioning

confidence: 99%

“…4 Thus, employing the enhanced oil recovery (EOR) technique has become ultimately critical to improving oil recovery from mature hydrocarbon reservoirs. 6 In terms of economic, environmental impact, and oil recovery, CO 2 injection is the most optimal EOR technique. 7,6 In addition, CO 2 -EOR incorporated with CO 2 storage has shown significant potential for enhancing oil recovery and reducing greenhouse emissions.…”

Section: Introductionmentioning

confidence: 99%

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CO₂ Sequestration and Enhanced Oil Recovery via the Water Alternating Gas Scheme in a Mixed Transgressive Sandstone-Carbonate Reservoir: Case Study of a Large Middle East Oilfield

et al. 2022

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The knowledge on CO2 sequestration and CO2 enhanced oil recovery (CO2-EOR) in mature mixed and interbedded hydrocarbon reservoirs are limited. In this vein, the feasibility of CO2-water alternating gas (CO2-WAG) for coupling CO2 sequestration and CO2-EOR in a mature mixed sandstone-carbonate reservoir was investigated using the S1A reservoir. First, core sample analysis and scanning electron microscopy (SEM) were conducted to evaluate the reservoir characterization. Next, a geological model with dual porosity and permeability was developed and transferred to a reservoir simulation model, and 21-year field production data were utilized for history matching and constraining of the reservoir model. Then, continuous CO2 and CO2-WAG injection methods were simulated using newly developed and history-matched geo-models and compared to assess their CO2-EOR and CO2 storage mechanisms and determine their potential in a mixed sandstone-carbonate reservoir. The effect of the anisotropic permeability ratio and hysteresis on CO2 storage mechanisms was addressed in this work. The results indicate that the CO2-WAG scheme can yield a +3% oil recovery factor than the continuous CO2 injection method, and CO2-WAG injection can utilize up to 14 and 12% of the total CO2 injected for residual and solubility trappings, respectively, while a minimal 2.9 and 0.03% was utilized from continuous CO2 injection for residual and solubility trappings, respectively. The WAG ratio of 2:1 could yield a higher recovery factor and greater CO2 utilization for solubility and residual trappings in a mixed reservoir. In mixed and interbedded reservoirs, geological anisotropy can also strongly influence reservoir performance during the CO2-EOR process, in which higher values of the anisotropy ratio (K v/K h) in CO2-WAG can yield greater oil recovery and more CO2 storage; also, hysteresis has great impact on residual trapping. This study provides valuable insights into the potential of CO2-WAG for CO2 sequestration and CO2-EOR in mature mixed and interbedded reservoirs.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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CO₂ Sequestration and Enhanced Oil Recovery via the Water Alternating Gas Scheme in a Mixed Transgressive Sandstone-Carbonate Reservoir: Case Study of a Large Middle East Oilfield

et al. 2022

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“…Studies show that CO 2 has important mechanisms including dissolution, viscosity reduction and swelling (Yu et al 2019;Li et al 2021) which are quite important for oil recovery. Approximately 34 CO 2 -EOR projects (Hill et al 2020) and more than 100 CO 2 -EOR projects (Lake et al 2019) have been reported in China and the United States, respectively. As early as 1988, Monger and Coma (Monger and Coma 1988) proposed that CO 2 huff 'n' puff was a promising EOR method.…”

Section: Introductionmentioning

confidence: 99%

Tight oil reservoir production characteristics developed by CO2 huff ‘n’ puff under well pattern conditions

Xia¹,

Wang²,

Rui

et al. 2022

J Petrol Explor Prod Technol

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Tight oil reservoirs have poor physical properties, and the problems including rapid oil rate decline and low oil recovery degree are quite common after volume fracturing. To obtain a general understanding of tight oil reservoir production improvement by CO2 huff ‘n’ puff, the high-pressure physical properties of typical tight oil samples are measured. Combining the typical reservoir parameters, the production characteristics of the tight oil reservoir developed by the CO2 huff ‘n’ puff are numerically studied on the basis of highly fitted experimental results. The results show that: (1) during the natural depletion stage, the oil production rate decreases rapidly and the oil recovery degree is low because of the decrease in oil displacement energy and the increase in fluid seepage resistance. (2) CO2 huff ‘n’ puff can improve the development effect of tight oil reservoirs by supplementing reservoir energy and improving oil mobility, but the development effect gradually worsens with increasing cycle number. (3) The earlier the CO2 injection timing is, the better the development effect of the tight reservoir is, but the less sufficient natural energy utilization is. When carrying out CO2 stimulation, full use should be made of the natural energy, and the appropriate injection timing should be determined by comprehensively considering the formation-saturation pressure difference and oil production rate. The research results are helpful for strengthening the understanding of the production characteristics of tight oil reservoirs developed by CO2 huff ‘n’ puff.

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“…Looking forward, coupling EOR projects with CO 2 capture technology is viewed as a potentially effective way to decarbonize the energy sector, while still positively impacting the budget of oil-exporting nations (Shogenova et al, 2021); capturing CO 2 onshore and transporting it offshore to be stored in EOR projects and transferred into underground reservoirs as they get depleted can simultaneously help global decarbonization efforts and reduce energy production costs if carbon capture storage is adequately incentivized (e.g., Mendelevitch, 2014, Oei and Mendelevitch, 2016, Santos et al, 2021. CO 2 -EOR projects are being considered by governments worldwide (e.g., IEA, 2008aIEA, , 2022a, and several pilot projects have been advanced in India (Shackley and Verma, 2008) and China (Hill et al, 2020), with preliminary positive results (N ú ñez-L ópez and Moskal, 2019). A number of recent studies indicate that this technology can also be adequately deployed in the North Sea if fields can share CO 2 pipelines (e.g., Holt et al, 2009, Kemp andKasim, 2013).…”

Section: Introductionmentioning

confidence: 99%

Innovation Begets Innovation and Concentration: The Case of Upstream Oil & Gas in the North Sea

Fioretti¹,

Iaria²,

Janssen³

et al. 2022

Preprint

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We investigate the effect of technology adoption on competition by leveraging a unique dataset on production, costs, and asset characteristics for North Sea upstream oil & gas companies. Relying on heterogeneity in the geological suitability of fields and a landmark decision of the Norwegian Supreme Court that increased the returns of capital investment in Norway relative to the UK, we show that technology adoption increases market concentration. Firms with prior technology-specific know-how specialize more in fields suitable for the same technology but also invest more in high-risk-high-return fields (e.g., ultra-deep recovery), diversifying their technology portfolio and ultimately gaining larger shares of the North Sea market. Our analyses illustrate how technology adoption can lead to market concentration both directly through specialization and indirectly via experimentation.

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CO2-EOR in China: A comparative review

Cited by 112 publications

References 14 publications

CO₂ Sequestration and Enhanced Oil Recovery via the Water Alternating Gas Scheme in a Mixed Transgressive Sandstone-Carbonate Reservoir: Case Study of a Large Middle East Oilfield

CO₂ Sequestration and Enhanced Oil Recovery via the Water Alternating Gas Scheme in a Mixed Transgressive Sandstone-Carbonate Reservoir: Case Study of a Large Middle East Oilfield

Tight oil reservoir production characteristics developed by CO2 huff ‘n’ puff under well pattern conditions

Innovation Begets Innovation and Concentration: The Case of Upstream Oil & Gas in the North Sea

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CO2-EOR in China: A comparative review

Cited by 112 publications

References 14 publications

CO2 Sequestration and Enhanced Oil Recovery via the Water Alternating Gas Scheme in a Mixed Transgressive Sandstone-Carbonate Reservoir: Case Study of a Large Middle East Oilfield

CO2 Sequestration and Enhanced Oil Recovery via the Water Alternating Gas Scheme in a Mixed Transgressive Sandstone-Carbonate Reservoir: Case Study of a Large Middle East Oilfield

Tight oil reservoir production characteristics developed by CO2 huff ‘n’ puff under well pattern conditions

Innovation Begets Innovation and Concentration: The Case of Upstream Oil & Gas in the North Sea

Contact Info

Product

Resources

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CO₂ Sequestration and Enhanced Oil Recovery via the Water Alternating Gas Scheme in a Mixed Transgressive Sandstone-Carbonate Reservoir: Case Study of a Large Middle East Oilfield

CO₂ Sequestration and Enhanced Oil Recovery via the Water Alternating Gas Scheme in a Mixed Transgressive Sandstone-Carbonate Reservoir: Case Study of a Large Middle East Oilfield