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...
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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...
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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...
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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...
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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...
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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...
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Dynamic simulation optimization of the hydrogen liquefaction process
February 2025
Liquid hydrogen has attracted much attention due to its high energy storage density and suitability for long-distance transportation. An efficient hydrogen liquefaction process is the key to obtaining...
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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...
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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...
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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...
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Paleoenvironmental factors controlling the development of the lacustrine shale interbed in the Jurassic Dongyuemiao Member of the Sichuan Basin, China
February 2025
Dongyuemiao Member shale in the Sichuan Basin, China, is characterized by organic-rich shale intervals with different types of interbeds and accumulation modes. The aim of this study is to elucidate...
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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...
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Geochemical signature and origin of natural gas in the Weixinan Depression, Beibu Gulf Basin, South China Sea
December 2024
The Weixinan Depression is a petroliferous depression in the Beibu Gulf Basin. After years of related research, scholars have gained a certain understanding of the oil accumulation law in the depression....
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Sustainable hydrate inhibition: Pectin and MEG synergy for deep-sea environments
December 2024
To ensure the continuous operation of the oil and gas industry, it is imperative to maintain an uninterrupted flow of oil and gas through pipelines and pay specific attention to preventing disruptions...
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Origin and accumulation of natural gas in the Carboniferous carbonate in the buried hill A area, Weixinan Depression, Beibu Gulf Basin
December 2024
Buried hills constitute a significant oil and gas exploration area in the Weixinan Depression. The A area is a typical buried hill, and carbonate hills are considered major reservoir reserves with rich...
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Geochemistry and the genesis of natural gases in the deep reservoirs of the Bozhong Depression, Bohai Bay Basin, China
December 2024
A large gas field with reserves of nearly 200 billion m3—BZ19-6—was discovered in the Bozhong Depression in the Bohai Bay Basin in 2018. There is a considerable difference between the amount of natural...
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Gas generation potential of Oligocene source rocks in Yinggehai Basin
December 2024
For many years, natural gas exploration in Yinggehai Basin has mainly focused on Miocene source rocks, and several exploration successes and insights have been achieved. However, limited research on...
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The coupling relationships of the Oligocene fault fan system and their control over natural gas accumulation in the Qiongdongnan Basin
December 2024
Oligocene (fan) delta-associated coal measures and marine source rocks are the main gas-generating source rocks in the Qiongdongnan Basin, and (fan) delta sand bodies are the dominant types of reservoirs....
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Genetic types and accumulation models of natural gas in the Weixinan depression of the Beibu Gulf Basin in the western South China Sea
December 2024
Exploration in the Weixinan depression of the Beibu Gulf Basin has long focused on crude oil, with less natural gas exploration, so the genetic types and accumulation characteristics of the natural...
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Oil and natural gas geochemistry in offshore China: Advances and challenges
December 2024
For many years, oil and natural gas geochemistry has been key to hydrocarbon exploration and exploitation in offshore China. Onshore oil fields have been thoroughly explored and exploited and have now...
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