Progress and development directions of shale oil reservoir stimulation technology of China National Petroleum Corporation

Lei, Qun; Weng, Dingwei; Xiong, Shengwu; Liu, Hanbin; Guan, Bowen; Deng, Qiang; Yan, Xuemei; Liang, Hongbo; Ma, Zeyuan

doi:10.1016/s1876-3804(21)60102-7

Cited by 61 publications

(13 citation statements)

References 25 publications

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“…As a consequence of the country's GDP reduction, the need to restructure fossil fuel production became more viable, turning the country into a balance point for pollution maintenance and political and environmental improvement [30].…”

Section: Resultsmentioning

confidence: 99%

Associations and Statistical Inferences to the Productive Environment of the Oil Market: Analysis of the World’s Largest Producers from 1993 to 2020

Ferreira¹,

Rubbo²,

Picinin³

2022

Preprint

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The energy matrix worldwide has been going through difficulties in its discussions - such as irregular exploration, inefficient public policies, and arbitrariness concerning diplomatic and political definitions of those involved in this market. This work's general objective consists in analyzing associations and statistical inferences of the largest world oil producers, assimilating the contributions and singularities of this market from 1993 to 2020. Based on the Organization of the Petroleum Exporting Countries (OPEC), it was possible to identify the possible inferences and contributions of the ten largest oil producers in the world in more than two decades using statistical analysis through correlation, regression, and statistical analysis of variables. According to the research and the literature on the area, the oil market proposes support to its discussions, mainly in its productive approaches. It is possible to identify this market as a solid link to geopolitical actions, distributing the possibilities through economic bias and socio-cultural and historical factors on a global level.

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Section: Resultsmentioning

confidence: 99%

Associations and Statistical Inferences to the Productive Environment of the Oil Market: Analysis of the World’s Largest Producers from 1993 to 2020

Ferreira¹,

Rubbo²,

Picinin³

2022

Preprint

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“…The development of medium-high maturity shale oil has experienced three stages: the conventional fracturing stage for straight wells, the volume fracturing stage for horizontal wells, and the seam-controlled fracturing stage (Lei et al, 2021). The main principle is to form an underground fracture network with horizontal well fracturing technology and use repeated fracturing to enhance recovery.…”

Section: Hydraulic Fracturing Technologymentioning

confidence: 99%

Rapid Development of Unconventional Oil and Gas: Status, Challenges and Prospects of Shale Oil Extraction Technology

Xia

Li³

et al. 2022

Front. Energy Res.

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“…At present, the main stimulation method is hydraulic fracturing [3]. Although hydraulic fracturing mainly uses a more economical slick water fracturing fluid system, the slick water system causes reservoir damage problems, such as water sensitivity in such unconventional oil and gas reservoirs [4,5]. At the same time, it also causes environmental protection problems, such as the waste of water resources in water-deficient areas [6].…”

Section: Introductionmentioning

confidence: 99%

An Experiment and Molecular Dynamics Simulation of Synergistic Foaming between a Surfactant and CO2 and the Structure–Activity Effect

Zhou,

Chen,

2024

Energies

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CO2 foam fracturing in tight and shale reservoirs is a revolutionary technique for commercially viable production. Nevertheless, the screening of foaming agents used in CO2 foam fracturing fluid and the understanding of foaming mechanisms have not been sufficiently investigated. This study aimed to provide a comprehensive method for evaluating and selecting an optimized foaming agent for CO2 foam fracturing fluid integrating macroscopic and microscopic approaches through laboratory experiments and molecular dynamics simulations. The relationship between the molecular structure of the foaming agent and its corresponding foaming effect was elucidated by taking the interaction between CO2 and the foaming agent into account. Foam evaluation experiments indicated that the anionic surfactants exhibited superior foaming capacity and inferior stability compared to zwitterionic and non-ionic surfactants. The molecular dynamics simulation results demonstrated that the foaming mechanism of the CO2 foaming agent relied on the equilibriums between CO2-surfactant, CO2-water, and surfactant–water interactions. At the same time, it was found that if the molecular structure of the surfactant contained functional groups that could produce hydrogen bonding with CO2, the stability of the foaming effect improved to a certain extent, but the foaming volume was not obvious. The classic hydrophilic–lipophilic balance (HLB) theory was not applicable when screening the CO2 foaming agents. It was found that the ionic surfactants with CO2-philic groups and linear structures were suitable as the main foaming agents for CO2 foam fracturing fluids, while non-ionic surfactants with significant steric hindrance were suitable as auxiliary foaming agents. This study provides valuable guidance for selecting cost-effective foaming agents on-site and adds to the understanding of the relationship between the molecular structure of foaming agents and their foaming effects.

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Progress and development directions of shale oil reservoir stimulation technology of China National Petroleum Corporation

Cited by 61 publications

References 25 publications

Associations and Statistical Inferences to the Productive Environment of the Oil Market: Analysis of the World’s Largest Producers from 1993 to 2020

Associations and Statistical Inferences to the Productive Environment of the Oil Market: Analysis of the World’s Largest Producers from 1993 to 2020

Rapid Development of Unconventional Oil and Gas: Status, Challenges and Prospects of Shale Oil Extraction Technology

An Experiment and Molecular Dynamics Simulation of Synergistic Foaming between a Surfactant and CO2 and the Structure–Activity Effect

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