Tight oil
View article: Controlling Factors and Genetic Mechanism of Tight Sandstone Reservoir Development: A Case Study of the He 8 Member in the Central Linxing Area, Eastern Ordos Basin
Controlling Factors and Genetic Mechanism of Tight Sandstone Reservoir Development: A Case Study of the He 8 Member in the Central Linxing Area, Eastern Ordos Basin Open
The Linxing area on the eastern margin of the Ordos Basin is a key area for tight-gas exploration. Here, the He 8 Member is the principal target for reserve growth and gas production. However, accurate prediction of sweet spots remains cha…
View article: Sensitivity experimental study of low-pressure tight sandstone gas reservoirs in eastern margin of Ordos Basin
Sensitivity experimental study of low-pressure tight sandstone gas reservoirs in eastern margin of Ordos Basin Open
The eastern margin of the Ordos Basin is rich in tight gas resources. However, the reservoirs are characterized by low pressure coefficients, poor physical properties, a high concentration of sensitive minerals such as clay minerals, and c…
View article: Optimization of CO2 flooding in tight oil based on improved machine learning
Optimization of CO2 flooding in tight oil based on improved machine learning Open
View article: Optimization of Fracture Parameters and Turning Angle of Temporary Plugging Refracturing in the Triassic Chang 6 Reservoir
Optimization of Fracture Parameters and Turning Angle of Temporary Plugging Refracturing in the Triassic Chang 6 Reservoir Open
The Triassic Chang 6 reservoir in the Suijing Oilfield is characterized by poor reservoir quality, pronounced heterogeneity, well-developed fractures, and suboptimal well pattern configuration, which collectively impede the establishment o…
View article: Investigation of Microscopic Oil Flow Characteristics During Fracturing Fluid Invasion and Flowback in Shale Oil Reservoirs
Investigation of Microscopic Oil Flow Characteristics During Fracturing Fluid Invasion and Flowback in Shale Oil Reservoirs Open
After hydraulic fracturing of C shale formation, it is difficult to get stable production, and the flowback efficiency of fracturing fluid is low. In order to reveal the law of fracturing fluid invasion and flowback behavior and to investi…
View article: Lithofacies-Controlled Pore Characteristics and Mechanisms in Continental Shales: A Case Study from the Qingshankou Formation, Songliao Basin
Lithofacies-Controlled Pore Characteristics and Mechanisms in Continental Shales: A Case Study from the Qingshankou Formation, Songliao Basin Open
Pore systems in continental shales are controlled by lithofacies and show strong heterogeneity, which challenges shale oil development. The Qingshankou Formation in the Songliao Basin is a major shale oil play in China. Previous studies ha…
View article: Types and Characteristics of Sedimentary Facies of the Chang 7 Oil Reservoir Group in Heshui Area of the Ordos Basin
Types and Characteristics of Sedimentary Facies of the Chang 7 Oil Reservoir Group in Heshui Area of the Ordos Basin Open
The Heshui area is located in the Longdong block in the southern part of the Ordos Basin. It is an important exploration and development zone for the Chang 7 oil reservoir group, which is dominated by low-permeability and tight oil reservo…
View article: Experimental Study On Enhanced Oil Recovery of Heavy Oil using Nanosilica combined with Polymer flooding in a porous medium
Experimental Study On Enhanced Oil Recovery of Heavy Oil using Nanosilica combined with Polymer flooding in a porous medium Open
It is no news that vital sources of non-renewable energy which are relevant to our daily use and consumption are severely being depleted in Nigeria and the world in general. As such, oil companies are turning to unconventional sources of n…
View article: Experimental Study On Enhanced Oil Recovery of Heavy Oil using Nanosilica combined with Polymer flooding in a porous medium
Experimental Study On Enhanced Oil Recovery of Heavy Oil using Nanosilica combined with Polymer flooding in a porous medium Open
It is no news that vital sources of non-renewable energy which are relevant to our daily use and consumption are severely being depleted in Nigeria and the world in general. As such, oil companies are turning to unconventional sources of n…
View article: Analysis of the Mechanism of Fracture Propagation and the Influence of Engineering Parameters on CO <sub>2</sub> Fracturing Effect in Shale Oil Reservoirs
Analysis of the Mechanism of Fracture Propagation and the Influence of Engineering Parameters on CO <sub>2</sub> Fracturing Effect in Shale Oil Reservoirs Open
The injection amount of CO 2 is a key parameter for the CO 2 fracturing effect of shale oil. In this paper, taking CO 2 fracturing in shale oil reservoirs as the research object, first, combining field tests and three‐dimensional well grou…
View article: Enhancing CO2 Sweep Efficiency in Tight Reservoir Horizontal Wells: A Segmented Huff-and-Puff Strategy to Mitigate Heterogeneity Effects
Enhancing CO2 Sweep Efficiency in Tight Reservoir Horizontal Wells: A Segmented Huff-and-Puff Strategy to Mitigate Heterogeneity Effects Open
CO2 huff-and-puff in horizontal wells is a key technique for enhancing oil production and improving recovery in tight oil reservoirs. It offers dual benefits: supplementing reservoir energy and promoting carbon sequestration, aligning with…
View article: Study on the adaptability and optimized development model of water injection and huff-and-puff in tight oil reservoirs based on wettability characteristics: A case study of the Machong reservoir in the Santanghu Basin
Study on the adaptability and optimized development model of water injection and huff-and-puff in tight oil reservoirs based on wettability characteristics: A case study of the Machong reservoir in the Santanghu Basin Open
After horizontal well development in the Machong tight oil reservoir of the Santanghu Basin, problems such as rapid reservoir pressure decline, significant productivity reduction, and low primary recovery efficiency have become prominent, …
View article: Effect of Sedimentary Environment on Mudrock Lithofacies and Organic Matter Enrichment in a Freshwater Lacustrine Basin: Insight from the Triassic Chang 7 Member in the Ordos Basin, China
Effect of Sedimentary Environment on Mudrock Lithofacies and Organic Matter Enrichment in a Freshwater Lacustrine Basin: Insight from the Triassic Chang 7 Member in the Ordos Basin, China Open
Gradually replacing fossil fuels with renewable energy constitutes a long-term strategy for achieving sustainable development. In the short term, it is necessary to explore unconventional oil and gas resources to support current economic s…
View article: Study on the adaptability and optimized development model of water injection and huff-and-puff in tight oil reservoirs based on wettability characteristics: A case study of the Machong reservoir in the Santanghu Basin
Study on the adaptability and optimized development model of water injection and huff-and-puff in tight oil reservoirs based on wettability characteristics: A case study of the Machong reservoir in the Santanghu Basin Open
After horizontal well development in the Machong tight oil reservoir of the Santanghu Basin, problems such as rapid reservoir pressure decline, significant productivity reduction, and low primary recovery efficiency have become prominent, …
View article: Life CycleAssessment of Western Canadian Tight OilResources
Life CycleAssessment of Western Canadian Tight OilResources Open
In the past decade, Western Canada has seen the rapid growth of tight oil resource development, where the associated environmental impacts are still being understood. This study presents a comparative life cycle assessment (LCA) of 13 tigh…
View article: Total Pore–Throat Size Distribution Characteristics and Oiliness Differences Analysis of Different Oil-Bearing Tight Sandstone Reservoirs—A Case Study of Chang6 Reservoir in Xiasiwan Oilfield, Ordos Basin
Total Pore–Throat Size Distribution Characteristics and Oiliness Differences Analysis of Different Oil-Bearing Tight Sandstone Reservoirs—A Case Study of Chang6 Reservoir in Xiasiwan Oilfield, Ordos Basin Open
In the observation of tight sandstone cores, the variations in the hydrocarbon charging usually can be observed in the same geological age reservoirs, which manifest as differential oil staining on the core surface. In order to clarify the…
View article: Impacts of Pore‐Throat Combination Types and Pore‐Throat Structure on the Seepage Capacity in Tight Sandstone Reservoirs: A Case Study of the Yanchang Formation in the Southeastern Yishan Slope of Ordos Basin
Impacts of Pore‐Throat Combination Types and Pore‐Throat Structure on the Seepage Capacity in Tight Sandstone Reservoirs: A Case Study of the Yanchang Formation in the Southeastern Yishan Slope of Ordos Basin Open
The physical properties of throats, including the size, shape and combination types with pores, are essential for hydrocarbon migration pathways within the tight sandstone reservoirs; therefore significantly affecting the seepage capacity …
View article: Characteristics of CO2–Formation Water–Rock Reaction and Simulation of CO2 Burial Efficiency in Tight Sandstone Reservoirs
Characteristics of CO2–Formation Water–Rock Reaction and Simulation of CO2 Burial Efficiency in Tight Sandstone Reservoirs Open
To clarify the characteristics of CO2–formation water–rock reactions in tight sandstones and their effects on CO2-enhanced oil recovery (EOR) efficiency and storage efficiency, this study takes the tight oil reservoirs of the Changqing Jiy…
View article: Shale oil in the Lower Cretaceous of the Erennaoer Depression, Erlian Basin: Insights from in-situ fluid content and hydrocarbon micromigration
Shale oil in the Lower Cretaceous of the Erennaoer Depression, Erlian Basin: Insights from in-situ fluid content and hydrocarbon micromigration Open
View article: Predicting Oil Productivity of High Water Cut Fractured Horizontal Wells in Tight Oil Reservoirs Based on KAN
Predicting Oil Productivity of High Water Cut Fractured Horizontal Wells in Tight Oil Reservoirs Based on KAN Open
The high water cut period represents a critical phase in the development of tight oil wells, and accurately forecasting productivity during this stage is essential for effective oilfield development planning. However, traditional reservoir…
View article: Quantitative characterization and optimization of fracability in continental shale reservoirs
Quantitative characterization and optimization of fracability in continental shale reservoirs Open
View article: Multi-lithofacies pore-structure oil-bearing differences and shale oil enrichment model of the Es4 shale in the western sag of Liaohe, Bohai Bay Basin
Multi-lithofacies pore-structure oil-bearing differences and shale oil enrichment model of the Es4 shale in the western sag of Liaohe, Bohai Bay Basin Open
The complex pore structures and unclear oil-bearing controls in lacustrine shale (such as the Es4 member of the Liaohe Depression) constrain sweet spot prediction. We divided the lithofacies types of reservoirs by mineral composition and o…
View article: Quantifyingthe Occurrence of Shale Oil in NanoconfinedKerogen Matrices through Integrated NMR Relaxation Theory and MolecularDynamics Simulations
Quantifyingthe Occurrence of Shale Oil in NanoconfinedKerogen Matrices through Integrated NMR Relaxation Theory and MolecularDynamics Simulations Open
Low-field nuclear magnetic resonance (NMR) is a powerful technique for characterizing fluid behavior in shale oil reservoirs. However, the abundant nanopores in shale and the limitations of experimental echo time hinder its further applica…
View article: Multi-regional Input–output Table for the Global Emerging Economies (EMERGING) V2
Multi-regional Input–output Table for the Global Emerging Economies (EMERGING) V2 Open
EMERGING V2: This version removes the 27th sector, totaling 133 sectors, compared to EMERGING1.0. It has been optimized and calibrated to improve the intermediate input matrix (Z matrix), trade volumes (imports and exports), and total outp…
View article: The oil displacement efficiency of cores 3 and 4.
The oil displacement efficiency of cores 3 and 4. Open
Tight sandstone reservoirs usually experience a long flowback period after hydraulic fracturing, which significantly affects oil production. After fracturing, the well-soaking is commonly employed to control fracturing fluid flowback and …
View article: Fracture conductivity damage in shale oil reservoirs: Mechanism model and its impact on oil production
Fracture conductivity damage in shale oil reservoirs: Mechanism model and its impact on oil production Open
View article: Asphaltene Deposition During Miscible and Immiscible Gas Injection in Tight Heavy Oil Reservoir: Implications for Formation Damage
Asphaltene Deposition During Miscible and Immiscible Gas Injection in Tight Heavy Oil Reservoir: Implications for Formation Damage Open
View article: Saturation Model Based on Effective Medium Theoryfor Shale Oil Reservoirs
Saturation Model Based on Effective Medium Theoryfor Shale Oil Reservoirs Open
As an essential unconventional resource in the global energy transition, the development efficiency of shale oil plays a vital role in shaping the international oil and gas supply framework. The lacustrine shale oil reservoirs within the Q…
View article: NuclearMagnetic Resonance Investigation of Imbibitionand CO<sub>2</sub> Huff-and-Puff Enhanced Oil Recovery in Shale PorousMedia
NuclearMagnetic Resonance Investigation of Imbibitionand CO<sub>2</sub> Huff-and-Puff Enhanced Oil Recovery in Shale PorousMedia Open
Efficient recovery of shale oil remains a major technical challenge due to the ultralow permeability, complex pore-fracture structure, diverse lithofacies, and inherently limited natural productivity. Conventional enhanced oil recovery (EO…
View article: Shale oil lithofacies development model of the Shahejie Formation in the Huanghekou sag.
Shale oil lithofacies development model of the Shahejie Formation in the Huanghekou sag. Open
Shale oil lithofacies development model of the Shahejie Formation in the Huanghekou sag.