Petrovietnam Journal

Experimental study on processing high sulfur crude oil at Dung Quat Refinery

Ngoc Duong Bui — 2025-12-05

This paper presents the results of an experimental study on processing Murban crude oil at Dung Quat Refinery. The study aims to evaluate the influence of sulfur content in input crude oil on the quality of refined products, the effectiveness of using DeSO_x additives at the RFCC (residue fluids catalyst cracking) unit and the operational efficiency of upgraded sulfur treatment units such as ARU (amine regeneration unit) and SRU2 (sulfur recovery unit). The experimental data obtained are the basis for the Refinery to further optimize the blending of raw materials, control product quality, and manage emissions, thereby ensuring economic and technical efficiency while minimizing environmental impacts when aiming to process high-sulfur crude oils.

Study on characteristic properties and the influence of lignosulfonates on the thickening time of cement slurry and set cement in oil well cementing

Viet Hoang Tran — 2025-12-05

The study aims to evaluate the effect of lignosulfonate on the thickening time and compressive strength of cement at a dosage of 0.639 %BWOC. IR spectroscopy confirms that lignosulfonate possesses a well-defined structure featuring aromatic rings and sulfonate groups. EPR analysis demonstrates that lignosulfonate not only increases viscosity and reduces the hydration rate but also actively participates in chemical interactions within the cement matrix.
TGA and DTG analyses indicate that lignosulfonate undergoes a 2-stage thermal decomposition, beginning significantly at around 190°C, reflecting relatively high thermal stability. According to API Spec.10A and RP 10B-2 tests, the sample incorporating lignosulfonate exhibits a lower fluid loss of 0.552% compared to 0.644% for the HR-14LM sample, while the UCA compressive strength of both slurries reaches 500 psi within 8 hours. Furthermore, the average porosity decreases from 20.814% to 18.147%, and permeability is reduced from 0.033 mD to 0.006 mD when lignosulfonate is used. The thickening times to reach 100 Bc for the two samples are 6 hours 5 minutes and 6 hours 8 minutes, respectively.

Application potential of tidal energy for offshore oil and gas platforms and DK1 stations in Vietnam

Hoai Nam Truong — 2025-12-05

In the context of Vietnam’s energy demand projected to grow by 8 - 10% per year, and the national target of achieving net-zero emissions by 2050, the exploitation of marine renewable energy has become a strategic direction. Oceanographic studies indicate that Vietnam possesses significant potential for marine renewable energy: offshore wind power is estimated at 513 GW, wave energy in the northern East Sea exceeds 20 kW/m, and tidal energy in the Spratly Archipelago shows an annual energy production (AEP) ranging from 3.3 - 27 GWh/year at the surface. The Chim Bien, An Bang, and Truong Sa Dong areas demonstrate the most promise.
Offshore oil and gas platforms and DK1 stations have continuous electrical loads but currently rely primarily on gas turbines and diesel generators. Integrating tidal turbines into platform substructures could partially replace baseline loads of 0.5 - 5 MW, significantly reduce fossil fuel consumption, CO2 emissions, and logistical expenses. This study provides a scientific and practical foundation for pilot deployment of tidal turbines on offshore oil and gas platforms and DK1 stations during 2025 - 2030, supporting Vietnam’s blue economy development and its commitment to achieving net-zero emissions.

Development of zero-emission microgrids for Vietnam's offshore islands: A case study of Phu Quy island

Doan Duy Dao — 2025-12-05

In Vietnam’s outlying islands, the high investment costs associated with building transmission infrastructure from the mainland have prevented a comprehensive solution to electricity access. Therefore, developing independent island microgrids is a practical and necessary approach. This model creates opportunities for developers in emerging energy technologies, thereby helping to advance socio-economic development and improving living conditions for island communities. To assess its feasibility, a case study was conducted for Phu Quy island using simulations of a microgrid architecture integrating hydrogen and energy storage.

The potential of CO2 utilization in Vietnam: A new pathway for sustainable development and circular economy

Minh Thuan Huynh — 2025-12-05

In the context of Vietnam’s commitment to achieving net-zero emissions by 2050, the utilization of CO₂ is becoming an important direction in the strategy for sustainable development and circular economy. Instead of treating CO₂ solely as a waste, many sectors in Vietnam, including fertilizer production, chemicals, construction materials, and oil recovery, are gradually converting CO₂ into valuable raw materials. This article focuses on analyzing the global potential of CO₂ applications and their relevance for Vietnam, from the perspectives of market scale, technology and value chains. It also proposes solutions to promote the development of CCU (carbon capture and utilization) technologies, positioning industrial CO₂ as a new resource to support the green transition and long-term emission reduction.

Mitigation of methane emissions in energy industry

Dang Khoa Nguyen — 2025-12-05

Methane emission reduction is one of the most effective measures to mitigate global climate change. According to the Global Methane Status Report released at COP30 [1], more than 80% of potential methane reductions by 2030 can be achieved at low cost, with the energy sector contributing 72%. Well-established solutions - such as leak detection and repair programs, closing abandoned wells - represent the majority of the needed actions.

This paper analyzes the current status of methane emission reduction in the global oil & gas industry and presents the experiences of major energy corporations (BP, ExxonMobil, Chevron, Shell, ConocoPhillips, Eni) in establishing methane reduction goals through advanced technologies, sustainable development investments, and research and development collaboration. Based on the analysis of international experiences, the paper proposes appropriate solutions to reduce methane emissions in the energy sector in general and for the Petrovietnam in particular.

Fabrication of smart, environmentally friendly anti-corrosion coating for petroleum equipments

Duc Quynh Dang — 2025-12-05

In this research, a smart epoxy (EP) coating was fabricated based on halloysite nanotubes (HNTs) containing the corrosion inhibitor sodium molybdate (Na₂MoO₄), and polyurea-formaldehyde microcapsules (UFMCs) loaded with linseed oil (LO) in a core-shell structure (UFMCs/LO corresponding to core/shell composition) with self-healing function. The structural, bonding, morphological, and thermal properties of the composites were characterized using XRD, FT-IR, SEM, EDX and TGA. The smart self-healing function of this coating is demonstrated by the ability of the core-shell microcapsules to release LO and fill the cracks when corrosion occurs, achieving a self-healing efficiency of about 66% as observed in SEM images. The anti-corrosion ability of this coating was evaluated by electrochemical impedance spectroscopy (EIS) and salt spray tests. Salt spray results show that the smart EP coating maintains its properties after 888 hours of exposure. The mechanical properties, including adhesion, hardness, impact resistance, and flexural strength, were also measured. The experimental results indicate that the smart EP coating is well-suited for the harsh conditions for equipment and structures in the petroleum industry.