Influences of heavy oil thermal recovery on reservoir properties and countermeasures of Yulou oil bearing sets in Liaohe Basin in China

Chen, Huanqing

doi:10.1007/s12517-019-4515-9

Cited by 3 publications

(3 citation statements)

References 18 publications

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“…Currently, commonly used methods for viscosity reduction of heavy oil include steam injection through thermal recovery, in situ combustion, and the use of chemical reagents and surface active agents as emulsifiers. 10,11 However, in practical applications, these methods still encounter some inevitable issues. In regions like China, where most heavy oil reservoirs are more than 1000 m deep, with some even exceeding 4000 m, thermal recovery methods suffer from serious heat loss.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the intrinsic characteristics of heavy oil reservoirs, such as their high viscosity and substantial content of colloids and asphaltenes, traditional production methods face significant challenges when it comes to effectively extracting these resources. , Viscosity reduction has long been recognized as a critical factor in the successful exploitation of heavy oil reservoirs. Currently, commonly used methods for viscosity reduction of heavy oil include steam injection through thermal recovery, in situ combustion, and the use of chemical reagents and surface active agents as emulsifiers. , However, in practical applications, these methods still encounter some inevitable issues. In regions like China, where most heavy oil reservoirs are more than 1000 m deep, with some even exceeding 4000 m, thermal recovery methods suffer from serious heat loss. , Additionally, many reservoirs are thin, rendering the thermal method inefficient and unsuitable for viscosity reduction in such cases .…”

Section: Introductionmentioning

confidence: 99%

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Mechanisms of Fluid Migration and CO₂ Storage in Low Permeability Heavy Oil Reservoirs Using High-Pressure Microfluidic CO₂ Flooding Experiment

Li,

Zheng,

Shi

et al. 2024

Energy Fuels

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The effective development of low permeability heavy oil reservoirs is crucial for tapping into unconventional resources. High-pressure CO 2 flooding offers numerous benefits, including reducing crude oil viscosity, enhancing oil fluidity, and decreasing interfacial tension, leading to improved heavy oil production. Additionally, CO 2 can be sequestered in the formation, contributing to carbon emission reduction. However, analyzing the migration and storage effects of CO 2 in low permeability heavy oil reservoirs is challenging. In this study, high-pressure and hightemperature (50 MPa,100 °C) microfluidic experiments were designed and carried out, and the CO 2 flooding characteristics and storage efficiency were studied. The distribution of the remaining oil and mechanisms of CO 2 sequestration under various displacement speeds and injection pressures were analyzed. The results demonstrated that CO 2 flooding achieved significantly higher recovery rates compared to high-pressure water flooding, with increments of 13.89, 21.53, and 23.09% at oil displacement pressures of 30, 40, and 50 MPa, respectively. The CO 2 burial efficiency also showed substantial improvements, reaching 23.55, 34.01, and 37.13% under the corresponding conditions. Furthermore, a higher porosity facilitated CO 2 migration, providing more space and migration channels for CO 2 flow. By examining CO 2 −oil interactions, the study elucidated CO 2 migration patterns and burial efficiency under different displacement modes.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanisms of Fluid Migration and CO₂ Storage in Low Permeability Heavy Oil Reservoirs Using High-Pressure Microfluidic CO₂ Flooding Experiment

Li,

Zheng,

Shi

et al. 2024

Energy Fuels

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“…Worldwide, major oil fields are generally in the middle and late stages of production, which means that the quality of crude oil tends to be heavier and poorer [1]. The salt and water content of crude oil has also increased due to the implementation of various measures to increase production [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of the Mixing and Salt Washing Effects of a Static Mixer in an Electric Desalination Process

Liu,

Gao,

Huang

et al. 2024

Processes

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Electric desalination units in the crude oil refining process are becoming increasingly important with the growing trend towards heavy and poor crude oils. The oil–water mixing effect of the static mixer plays a crucial role in the electric desalination process. The present study investigated the effect of various variables, such as mixer type, number of mixing elements, washing water consumption, and oil viscosity and density on the oil–water mixing efficiency of a static mixer. In addition, this study also analyzed the effect of these variables on the salt washing process that occurs during mixing using a kinetic equation for the dissolution of inorganic salts. The results showed that the number of mixing elements was the most significant variable, followed by the amount of washing water injected. The density of the crude oil had a negligible effect. Based on these results, the use of four mixing elements in the SMX static mixer was recommended. The injection of washing water should be controlled at about 8%, while ensuring that the interfacial tension between oil and water remains below 0.01 N/m. Under these conditions, the salt washing efficiency reached 46.3%. This study provides a theoretical basis for designing static mixers and optimizing their operation in electric desalination processes.

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Effect of water pressure and expulsion on hydrocarbon generation of kerogen under semi-closed conditions

Zhang

et al. 2021

Arab J Geosci

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Influences of heavy oil thermal recovery on reservoir properties and countermeasures of Yulou oil bearing sets in Liaohe Basin in China

Cited by 3 publications

References 18 publications

Mechanisms of Fluid Migration and CO₂ Storage in Low Permeability Heavy Oil Reservoirs Using High-Pressure Microfluidic CO₂ Flooding Experiment

Mechanisms of Fluid Migration and CO₂ Storage in Low Permeability Heavy Oil Reservoirs Using High-Pressure Microfluidic CO₂ Flooding Experiment

Numerical Simulation of the Mixing and Salt Washing Effects of a Static Mixer in an Electric Desalination Process

Effect of water pressure and expulsion on hydrocarbon generation of kerogen under semi-closed conditions

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Influences of heavy oil thermal recovery on reservoir properties and countermeasures of Yulou oil bearing sets in Liaohe Basin in China

Cited by 3 publications

References 18 publications

Mechanisms of Fluid Migration and CO2 Storage in Low Permeability Heavy Oil Reservoirs Using High-Pressure Microfluidic CO2 Flooding Experiment

Mechanisms of Fluid Migration and CO2 Storage in Low Permeability Heavy Oil Reservoirs Using High-Pressure Microfluidic CO2 Flooding Experiment

Numerical Simulation of the Mixing and Salt Washing Effects of a Static Mixer in an Electric Desalination Process

Effect of water pressure and expulsion on hydrocarbon generation of kerogen under semi-closed conditions

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Product

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Mechanisms of Fluid Migration and CO₂ Storage in Low Permeability Heavy Oil Reservoirs Using High-Pressure Microfluidic CO₂ Flooding Experiment

Mechanisms of Fluid Migration and CO₂ Storage in Low Permeability Heavy Oil Reservoirs Using High-Pressure Microfluidic CO₂ Flooding Experiment