The W transform and its improved methods for time-frequency analysis of seismic data
August 2024
The conventional linear time-frequency analysis method cannot achieve high resolution and energy focusing in the time and frequency dimensions at the same time, especially in the low frequency region....
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Distribution patterns of tight sandstone gas and shale gas
August 2024
Based on an elaboration of the resource potential and annual production of tight sandstone gas and shale gas in the United States and China, this paper reviews the researches on the distribution of...
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Petroleum exploration and production in Brazil: From onshore to ultra-deepwaters
August 2024
The Santos Basin in Brazil has witnessed significant oil and gas discoveries in deepwater pre-salt since the 21st century. Currently, the waters in eastern Brazil stand out as a hot area of deepwater...
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Iteration and evaluation of shale oil development technology for continental rift lake basins
August 2024
By benchmarking with the iteration of drilling technology, fracturing technology and well placement mode for shale oil and gas development in the United States and considering the geological characteristics...
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Research progress and development of deep and ultra-deep drilling fluid technology
August 2024
The research progress of deep and ultra-deep drilling fluid technology systematically reviewed, the key problems existing are analyzed, and the future development direction is proposed. In view of the...
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Hydrocarbon accumulation and orderly distribution of whole petroleum system in marine carbonate rocks of Sichuan Basin, SW China
August 2024
Based on the situation and progress of marine oil/gas exploration in the Sichuan Basin, SW China, the whole petroleum system is divided for marine carbonate rocks of the basin according to the combinations...
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Research advances on the mechanisms of reservoir formation and hydrocarbon accumulation and the oil and gas development methods of deep and ultra-deep marine carbonates
August 2024
Based on the new data of drilling, seismic, logging, test and experiments, the key scientific problems in reservoir formation, hydrocarbon accumulation and efficient oil and gas development methods...
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Coal-rock gas: Concept, connotation and classification criteria
August 2024
In recent years, great breakthroughs have been made in the exploration and development of natural gas in deep coal-rock reservoirs in Junggar, Ordos and other basins in China. In view of the inconsistency...
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Geologic characteristics, exploration and production progress of shale oil and gas in the United States: An overview
August 2024
We present a systematic summary of the geological characteristics, exploration and development history and current state of shale oil and gas in the United States. The hydrocarbon-rich shales in the...
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Current status and construction scheme of smart geothermal field technology
August 2024
To address the key problems in the application of intelligent technology in geothermal development, smart application scenarios for geothermal development are constructed. The research status and existing...
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Sedimentary build-ups of pre-salt isolated carbonate platforms and formation of deep-water giant oil fields in Santos Basin, Brazil
August 2024
In response to the problems of unclear distribution of deep-water pre-salt carbonate reservoirs and formation conditions of large oil fields in the Santos passive continental margin basin, based on...
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Control of Earth system evolution on the formation and enrichment of marine ultra-deep petroleum in China
August 2024
Taking the Paleozoic of the Sichuan and Tarim basins in China as example, the controlling effects of the Earth system evolution and multi-spherical interactions on the formation and enrichment of marine...
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Research status and application of artificial intelligence large models in the oil and gas industry
August 2024
This article elucidates the concept of large model technology, summarizes the research status of large model technology both domestically and internationally, provides an overview of the application...
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Shale oil recovery by CO2 injection in Jiyang Depression, Bohai Bay Basin, East China
August 2024
Laboratory experiments, numerical simulations and fracturing technology were combined to address the problems in shale oil recovery by CO2 injection. The laboratory experiments were conducted to investigate...
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“Component flow” conditions and its effects on enhancing production of continental medium-to-high maturity shale oil
August 2024
Based on the production curves, changes in hydrocarbon composition and quantities over time, and production systems from key trial production wells in lacustrine shale oil areas in China, fine fraction...
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Development and prospect of acoustic reflection imaging logging processing and interpretation method
August 2024
Acoustic reflection imaging logging technology can detect and evaluate the development of reflection anomalies, such as fractures, caves and faults, within a range of tens of meters from the wellbore,...
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Two stages of subsidence and its formation mechanisms in Mid-Late Triassic Ordos Basin, NW China
June 2024
Based on a large number of newly added deep well data in recent years, the subsidence of the Ordos Basin in the Mid-Late Triassic is systematically studied, and it is proposed that the Ordos Basin experienced...
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Whole petroleum system in Jurassic coal measures of Taibei Sag in Tuha Basin, NW China
June 2024
Based on the latest results of near-source exploration in the Middle and Lower Jurassic of the Tuha Basin, a new understanding of the source rocks, reservoir conditions, and source-reservoir-cap rock...
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Large-scale physical simulation of injection and production of hot dry rock in Gonghe Basin, Qinghai Province, China
June 2024
Based on the independently developed true triaxial multi-physical field large-scale physical simulation system of in-situ injection and production, we conducted physical simulation of long-term multi-well...
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Application of 9-component S-wave 3D seismic data to study sedimentary facies and reservoirs in a biogas-bearing area: A case study on the Pleistocene Qigequan Formation in Taidong area, Sanhu Depression, Qaidam Basin, NW China
June 2024
To solve the problems in restoring sedimentary facies and predicting reservoirs in loose gas-bearing sediment, based on seismic sedimentologic analysis of the first 9-component S-wave 3D seismic dataset...
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Main controlling factors and exploration enlightenment of aluminous rock series gas reservoirs in Ordos Basin, NW China
June 2024
Based on the data of outcrop, core, logging, gas testing, and experiments, the natural gas accumulation and aluminous rock mineralization integrated research was adopted to analyze the controlling factors...
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Integrated numerical simulation of hydraulic fracturing and production in shale gas well considering gas-water two-phase flow
June 2024
Based on the displacement discontinuity method and the discrete fracture unified pipe network model, a sequential iterative numerical method was used to build a fracturing-production integrated numerical...
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Genetic mechanism and main controlling factors of high-quality clastic rock reservoirs in deep and ultradeep layers: A case study of Oligocene Linhe Formation in Linhe Depression, Hetao Basin, NW China
June 2024
Based on new data from cores, drilling and logging, combined with extensive rock and mineral testing analysis, a systematic analysis is conducted on the characteristics, diagenesis types, genesis and...
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Genetic source, migration and accumulation of helium under deep thermal fluid activities: A case study of Ledong diapir area in Yinggehai Basin, South China Sea
June 2024
Based on the geochemical parameters and analytical data, the heat conservation equation, mass balance law, Rayleigh fractionation model and other methods were used to quantify the in-situ yield and...
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Coupling relationship and genetic mechanisms of shelf-edge delta and deep-water fan source-to-sink: A case study in Paleogene Zhuhai Formation in south subsag of Baiyun Sag, Pearl River Mouth Basin, China
June 2024
The coupling relationship between shelf-edge deltas and deep-water fan sand bodies is a hot and cutting-edge field of international sedimentology and deep-water oil and gas exploration. Based on the...
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