Study on influences of geological and gas source conditions on gas-chimney hydrate accumulation using a reservoir numerical simulation method
June 2025
The Shenhu Area in the South China Sea is rich in oil and gas resources and has many vertical gas chimneys, making it an excellent geological environment for hydrate accumulation. This paper examines...
Mineral identification in thin sections using a lightweight and attention mechanism
April 2025
Mineral identification is foundational to geological survey research, mineral resource exploration, and mining engineering. Considering the diversity of mineral types and the challenge of achieving...
Automatic detection and classification of drill bit damage using deep learning and computer vision algorithms
April 2025
This study aims to eliminate the subjectivity and inconsistency inherent in the traditional International Association of Drilling Contractors (IADC) bit wear rating process, which heavily depends on...
Super-resolution for electron microscope scanning images of shale via spatial-spectral domain attention network
April 2025
The evaluation of adsorption states and shale gas content in shale fractures and pores relies on the analysis of these fractures and pores. Scanning electron microscopy images are commonly used for...
Stratified allocation method for water injection based on machine learning: A case study of the Bohai A oil and gas field
April 2025
The Bohai A oil and gas field is a natural gas and oil coproduction reservoir in the southern Bohai Sea, with an average gas–oil ratio of approximately 65 m3/m3. The oil and gas field has now entered...
Integrated wellbore-surface pressure control production optimization for shale gas wells
April 2025
Shale gas wells often face challenges in maintaining continuous and stable production due to their coexistence with high- and low-pressure wells within the same development block, which leads to issues...
EILnet: An intelligent model for the segmentation of multiple fracture types in karst carbonate reservoirs using electrical image logs
April 2025
Karst fractures serve as crucial seepage channels and storage spaces for carbonate natural gas reservoirs, and electrical image logs are vital data for visualizing and characterizing such fractures....
Seismic fault identification of deep fault-karst carbonate reservoir using transfer learning
April 2025
Seismic fault identification is a critical step in structural interpretation, reservoir characterization, and well-drilling planning. However, fault identification in deep fault-karst carbonate formations...
A novel surrogate model with deep learning for predicting spacial-temporal pressure in coalbed methane reservoirs
April 2025
Coalbed methane (CBM) is a vital unconventional energy resource, and predicting its spatiotemporal pressure dynamics is crucial for efficient development strategies. This paper proposes a novel deep...
An intelligent algorithm for identifying dropped blocks in wellbores
April 2025
Real-time monitoring of wellbore stability during drilling is crucial for the early detection of instability and timely interventions. The cause and type of wellbore instability can be identified by...
Hybrid genetic algorithm for parametric optimization of surface pipeline networks in underground natural gas storage harmonized injection and production conditions
April 2025
The surface injection and production system (SIPS) is a critical component for effective injection and production processes in underground natural gas storage. As a vital channel, the rational design...
Developing a large language model for oil- and gas-related rock mechanics: Progress and challenges
April 2025
In recent years, large language models (LLMs) have demonstrated immense potential in practical applications to enhance work efficiency and decision-making capabilities. However, specialized LLMs in...
Advances on research of H2S removal by deep eutectic solvents as green solvent
February 2025
H2S in natural gas and other industrial gas is seriously harmful to human health, environmental protection and the downstream industries. Efficient purification of H2S containing gas is the basic process...
Relationship between potentiometric surface and abnormally low pressure in the Yanchang Formation, Zhenjing area, Ordos Basin, China
February 2025
Abnormally low pressure commonly develops in petroliferous basins. It is closely associated with hydrocarbon distribution and can hinder safe drilling operations. Potentiometric surface is one of the...
The hydrocarbon generation potential of the mudstone source rock in the Jurassic Shuixigou Group, the Turpan-Hami Basin, and indicative significance for oil and gas exploration
February 2025
The coal-bearing source rocks in the Jurassic Shuixigou Group have received widespread attention as the primary source rocks in the Turpan-Hami Basin of China, but the hydrocarbon generation potential...
Technology of milling bridge plugs and field applications in shale gas horizontal wells with severe casing deformation
February 2025
Milling bridge plugs in shale gas wells with severe casing deformation often leads to the accumulation of cuttings, increasing the risk of stuck drill bits. Friction in the wellbore further complicates...
A method for optimizing and controlling rocking drillstring–assisted slide drilling
February 2025
Rocking the drillstring at the surface during slide drilling is a common method for reducing drag when drilling horizontal wells. However, the current methods for determining the parameters for rocking...
Fatigue properties of tension leg tendon: A full-scale approach
February 2025
The tension leg platform is a typical compliant platform that is connected to the seabed through tension leg tendons. However, it is hard to characterize tension leg tendons due to the complexity of...
3D mechanical modeling and analysis of influencing factors on fracture breakdown pressure in dual horizontal well intensive hydraulic fracturing
February 2025
Horizontal well intensive fracturing is a critical technology used to stimulate unconventional oil and gas reservoirs. Accurate prediction of wellbore breakdown pressure is conducive to optimal fracturing...