Thermal Treatment of Reservoir as One of the Powerful Method of Shale Formation Development in Russia

Gorshkov, A. M.; Khomyakov, I. S.

doi:10.1088/1755-1315/272/3/032004

Cited by 4 publications

(4 citation statements)

References 5 publications

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“…Thermal treatment studies by Gorshkov and Khomyakov [43] demonstrated a potential increase in the porosity and permeability of West Siberian cores samples when subjected to thermal treatment. In the study, two siliceous-argillaceous core samples with high kerogen and thermal maturity of Tmax < 429 • C were compared.…”

Section: Advances In Experimental Studies Of Isc On West Siberian Sha...mentioning

confidence: 99%

“…With respect to shales, the thermal EOR methods applied must be capable of providing the adequate heat required to convert the kerogen mobile hydrocarbons. Hence, not all the thermal methods that are applicable to a conventional reservoir could be applied to shale and tight formations [42,43,50,51]. For generation of hydrocarbons, a temperature above 300 • C is required.…”

Section: Hot-fluid Injection (Hfi)mentioning

confidence: 99%

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Tight and Shale Oil Exploration: A Review of the Global Experience and a Case of West Siberia

Dorhjie,

Mukhina,

Kasyanenko

et al. 2023

Energies

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Shale and tight oil reservoirs, with horizontal wells and hydraulic fractures, typically have a recovery ratio of around 10%. The exploration of tight oil and shale in North America has proven economically viable, thanks to advancements, such as horizontal wells, hydraulic fracturing, and other enhanced oil recovery techniques. Taking inspiration from the global experience (the North American shale experience), the exploration and development of the West Siberian tight and shale reserves was more focused on the reported best practices of the exploration of North American shale. In this study, the advance in the specific areas of shale and tight oil exploration was considered, with more emphasis placed on the progress in the exploration of West Siberian shales. According to the review literature, thermal enhanced recovery methods capable of converting organic matter into hydrocarbons were studied more than other methods of enhanced oil recovery. Aligned with global trends, there has been a growing focus on research aiming to integrate data-driven approaches and pore-scale simulations to enhance recovery from tight and shale formations. Multiple pilot studies have showcased promising prospects for implementing multistage hydraulic fracturing. Nevertheless, there are limited pilot studies dedicated to enhanced oil recovery methods for West Siberian shale.

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Section: Advances In Experimental Studies Of Isc On West Siberian Sha...mentioning

confidence: 99%

Section: Hot-fluid Injection (Hfi)mentioning

confidence: 99%

Tight and Shale Oil Exploration: A Review of the Global Experience and a Case of West Siberia

Dorhjie,

Mukhina,

Kasyanenko

et al. 2023

Energies

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“…At present, the development of prospective unconventional oil reserves is one of the highest-profile topics in the oil industry. According to various sources, the Bazhenov formation in Western Siberia holds between 65 and 500 × 10 9 tons of oil in place. − The shale reserves within the Bazhenov formation contain light low-sulfur tight oil and a significant amount of solid organic matterkerogen, which can adsorb oil, making it more difficult to recover. Today, hydraulic fracturing is the main technology used for oil recovery from ultra-low-permeability reservoirs.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, water serves as a catalyst for thermal reactions . Existing experimental and numerical studies imply that hot water (subcritical or supercritical fluid) injection may potentially lead to a significant increase in oil recovery from oil shale formations due to the increased porosity and permeability and the realization of kerogen’s ability to generate oil ,− depending on its type and level of thermal maturity . It should be noted that hot water is potentially an eco-friendly EOR agent, although well operation should nevertheless be performed very carefully to avoid possible risks.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Oil Recovery Method Selection for Shale Oil Based on Numerical Simulations

et al. 2021

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As unconventional reserves, oil shale deposits require additional oil recovery techniques to achieve favorable production levels. The efficiency of a shale reservoir development project is highly dependent on the application of enhanced oil recovery (EOR) techniques. There are many studies devoted to discrete investigations of each EOR method. Most of them claim that one particular method is particularly effective in increasing oil recovery. Despite the wealth of such research, it remains hard to say with certainty which technique would be the most effective when applied in the extraction of unconventional reserves. In this work, we aim to answer this question by means of a comparative study. Three EOR methods were applied and analyzed in the same environment, a single target objectan oil field in Western Siberia characterized by ultra-low permeability (0.03 mD on average) and high organic content. Methods involving huff-and-puff injection of a surfactant solution, hydrocarbon gas, and hot water were studied using numerical reservoir simulations based on preceding laboratory experiments. A single horizontal well having undergone nine-stage hydraulic fracturing was used as the field site model. The comparative calculations of cumulative oil production over an 8-year period revealed that the injection of hot (supercritical) water led to the highest oil recovery in the target shale reservoir. Each EOR method was implemented using the best operation scenario. All three cases resulted in an increase in cumulative oil production compared to the depletion mode, though the efficiency was distinctly different. Twenty-six percent more oil was obtained after hot water injection, 16% after hydrocarbon gas, and 12% after a surfactant solution. Simulation of a hot water huff-and-puff operation over a longer period (43 years) led to a level of oil production 3 times higher than depletion. The drawbacks of each EOR method on the shale site are discussed in the results. A possible solution was proposed for preventing the negative effects of heat loss and water blockage incurred from hot water injection. The comparative study concludes that hot water injection should lead to the highest volume of oil recovery. The conclusions drawn are suggested to be relevant for similar shale fields.

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Experimental Investigation of the Anisotropic Evolution of Tensile Strength of Oil Shale Under Real-Time High-Temperature Conditions

Yang

Kang

2021

Nat Resour Res

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Thermal Treatment of Reservoir as One of the Powerful Method of Shale Formation Development in Russia

Cited by 4 publications

References 5 publications

Tight and Shale Oil Exploration: A Review of the Global Experience and a Case of West Siberia

Tight and Shale Oil Exploration: A Review of the Global Experience and a Case of West Siberia

Enhanced Oil Recovery Method Selection for Shale Oil Based on Numerical Simulations

Experimental Investigation of the Anisotropic Evolution of Tensile Strength of Oil Shale Under Real-Time High-Temperature Conditions

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