Integrated reservoir characterization of the Permo-Triassic gas reservoirs in the Central Persian Gulf
Available online 5 February 2024
The Upper Dalan and Kangan or Permian-Triassic carbonate formations in the central the Persian Gulf are considered as world’s giant gas reservoirs. The primary purpose of this research is to model and...
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High-pressure capacity expansion and water injection mechanism and indicator curve model for fractured-vuggy carbonate reservoirs
Available online 10 January 2024
Water injection for oil displacement is one of the most effective ways to develop fractured-vuggy carbonate reservoirs. With the increase in the number of rounds of water injection, the development...
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Experimental study of water imbibition characteristics of the lacustrine shale in Sichuan Basin
December 2023
Through the stimulation method of large-scale hydraulic fracturing, the spontaneous imbibition capacity of the water phase in the shale reservoir has great influence on the effect of stimulation. Generally,...
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Pore scale numerical investigation of counter-current spontaneous imbibition in multi-scaled pore networks
December 2023
The multi-scaled pore networks of shale or tight reservoirs are considerably different from the conventional sandstone reservoirs. After hydraulic fracturing treatment, the spontaneous imbibition process...
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Shale gas potential of the lower Silurian hot shales in southern Iran and the Arabian Plate: Characterization of organic geochemistry
December 2023
A significant phase of global warming appeared during the Llandovery and productive Silurian hot shale was preserved all over the world. The lower Silurian shale is the main effective source rock for...
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In-service performance of emergency shutdown valves and dependent operational relationships in the offshore oil and gas industry
December 2023
Industrial process plants use emergency shutdown valves (ESDVs) as safety barriers to protect against hazardous events, bringing the plant to a safe state when potential danger is detected. These ESDVs...
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A large-scale experimental simulator for natural gas hydrate recovery and its experimental applications
December 2023
To facilitate the recovery of natural gas hydrate (NGH) deposits in the South China Sea, we have designed and developed the world's largest publicly reported experimental simulator for NGH recovery....
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Systematic experimental study of the temperature dependence of viscosity and rheological behavior of water-based drilling fluids with nano-additives
December 2023
The paper presents the results of a systematic study of the influence of nano-additives of various concentrations, average sizes and composition on the temperature dependence of the viscosity and rheological...
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Comparative study on the inhibiting mechanism of inhibitor with primary amine groups and quaternary ammonium groups for sodium bentonite
December 2023
Shale hydration and swelling is the main obstacle to the development of shale gas utilizing water-based drilling fluids (WBDFs). In this work, the inhibition mechanism of alkylammonium inhibitor and...
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Evaluation on the anisotropic brittleness index of shale rock using geophysical logging
December 2023
The brittleness index plays a significant role in the hydraulic fracturing design and wellbore stability analysis of shale reservoirs. Various brittleness indices have been proposed to characterize...
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Forecasting oil production in unconventional reservoirs using long short term memory network coupled support vector regression method: A case study
December 2023
Production prediction is crucial for the recovery of hydrocarbon resources. However, accurate and rapid production forecasting remains challenging for unconventional reservoirs due to the complexity...
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Lessons learned from coreflood experiments with surfactant-polymer and alkali-surfactant-polymer for enhanced oil recovery
December 2023
A review of coreflood experiments for chemically enhanced oil recovery (EOR) is presented in this paper, particularly surfactant-polymer (SP) and alkali-surfactant-polymer (ASP) processes. The objective...
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An adaptive neuro-fuzzy inference system white-box model for real-time multiphase flowing bottom-hole pressure prediction in wellbores
December 2023
The majority of published empirical correlations and mechanistic models are unable to provide accurate flowing bottom-hole pressure (FBHP) predictions when real-time field well data are used. This is...
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Mechanical behavior of salt rocks: A geomechanical model
December 2023
The geomechanical behavior of salt rocks is a significant concern during drilling and development operations in some hydrocarbon reservoirs and underground gas storage sites. In this study, the static...
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Development and application of guar gum crosslinked gel with adjustable gelation time for total loss treatment
December 2023
To remediate the problem of severe or total losses, and meet the requirements of borehole plugging and pumping at different well depths, a novel crosslinked polymer gel (named HPG/Zr gel) with controlled...
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Calculating densities and viscosities of natural gas with a high content of C2+ to predict two-phase liquid-gas flow pattern
December 2023
The paper is devoted to the two-phase flow simulation. The gas-condensate mixture flow in a horizontal pipe under high pressure is considered. The influence of the equation of state (EOS) choice for...
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Simulation of directional propagation of hydraulic fractures induced by slotting based on discrete element method
December 2023
Hydraulic fracturing (HF) technology can safely and efficiently increase the permeability of coal seam, which is conducive to CBM exploration and prevent coal and gas outburst. However, conventional...
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An experimental study on optimizing parameters for sand consolidation with organic-inorganic silicate solutions
Available online 28 December 2023
Sand production along with the oil/gas detrimentally affects the oil production rate, downhole & subsurface facilities. Mechanical equipment and various chemicals like epoxy resin, furan resin, phenolic...
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Low-temperature oxidation characteristics and reaction pathways of crude oil within tight shale during air injection
Available online 27 December 2023
The investigation of low-temperature oxidation (LTO) of crude oil within tight shale holds significant importance due to its implications for subsequent oxidation reactions and enhanced oil recovery...
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Paleo-uplift forced regional sedimentary evolution: A case study of the Late Triassic in the southeastern Sichuan Basin, South China
Available online 14 December 2023
The sedimentary environment of the Upper Triassic in the southeastern Sichuan Basin is obviously controlled by Luzhou paleo-uplift (LPU). However, the influence of paleo-uplift on the sedimentary patterns...
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Progress in the application of graphene material in oilfield chemistry: A review
Available online 11 December 2023
Graphene is a single atom thick crystal composed of carbon atoms. It is the lightest, thinnest, strongest material that conducts heat and electricity well heretofore. In terms of application, by introducing...
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Application status and research progress of CO2 fracturing fluid in petroleum engineering: A brief review
Available online 5 December 2023
This paper comprehensively reviews the application and research progress of CO2 fracturing fluids in China, highlights the existing issues and puts forward suggestions for future development. Three...
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Fracturing-flooding technology for low permeability reservoirs: A review
Available online 4 December 2023
The development of low-permeability oil and gas resources presents a significant challenge to traditional development methods. To address the problem of “no injection and no production” in low -permeability...
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Production performance analysis of a continental shale oil reservoir in Bohai Bay basin
Available online 29 November 2023
Due to the extremely low permeability of shale formations, the combination of horizontal well and volume fracturing has been proposed as an effective technique to improve the production of Dagang continental...
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A thermo-mechanical simulation for the stability analysis of a horizontal wellbore in underground coal gasification
Available online 29 November 2023
The stability analysis of horizontal wells is essential for a successful underground coal gasification (UCG) operation. In this paper, a new 3D coupled thermo-mechanical numerical modeling is proposed...
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