Giant discoveries of oil and gas fields in global deepwaters in the past 40 years and the prospect of exploration
February 2019
Deepwater exploration has been developed for more than 40 years since 1975; generally, its exploration history can be divided into the beginning stage (1975–1984), the early stage (1985–1995) and the...
Present status of Bangladesh gas fields and future development: A review
December 2019
Natural gas, played vital role as main energy source to the rapid development of Bangladesh, production and consumption has been increased drastically during last decades. Geological and geophysical...
Shelf edge progradation: An example from Early Cretaceous to Recent based on a seismic sequence stratigraphic framework in the Bengal Basin
December 2025
This study reconstructs the stratigraphic and tectonostratigraphic frameworks of the Bengal Basin by integrating outcrop geological observations, 2D seismic profiles, well logs, core samples, sedimentological,...
Technological issues in shale oil development using horizontal wells in Ordos Basin, China
December 2023
The PetroChina Changqing Oilfield Company has successfully achieved large-scale economical development of continental low-pressure freshwater lake interlayer shale oil in the Ordos Basin, China, targeting...
2021–2025 is a period of great development of China's natural gas industry: Suggestions on the exploration and development of natural gas during the 14th five-year plan in China
August 2021
Among the world's 10 major gas producing countries, only the United States (USA), Russia and Iran have annual gas production of 250 × 109 m3 or more. China is expected to have gas output of 250 × 109 m3...
Genesis of high-salinity formation water and salinity sensitivity of deep coal-rock gas reservoirs in the Ordos Basin, China
December 2025
Deep coal-rock gas reservoirs in the Ordos Basin are characterized by high-salinity formation water, low water saturation, and high gas saturation. During hydraulic fracturing, injected fluid can easily...
Petrophysical characterization and reservoir potential of the Lower Goru sandstone: A case study from the Sinjhoro Gas Field, Pakistan
June 2025
The primary method which has been traditionally used for assessing the hydrocarbon potential of reservoir rock involves analyzing petrophysical properties via well logs. Evaluating these properties...
Helium resources accumulation regulations and their development prospects in China
October 2024
Helium is a globally scarce strategic resource that is relevant to national economies and the development of high-tech industries, and China primarily depends on imported helium for its industrial applications....
An integrated study on the reservoir potential of upper Cretaceous succession of the Anambra Basin (Nigeria) using the seismic-structural, petrophysical, and sedimentological approach
June 2023
The Anambra Basin has a relatively high hydrocarbon production base compared with other Cretaceous basins in Nigeria. Structural deformation, overpressures, and faulting in the Cretaceous sequence of...
Full-scale pore structure characterization and main controlling factors of marine–continental transitional shale and coal reservoirs in the Shanxi Formation, Ordos Basin, China
December 2025
Pore structure heterogeneity between marine–continental transitional shale and coal reservoirs plays a crucial role in exploration and development of unconventional oil and gas resources. This study...
Inter-well interference and well spacing optimization for shale gas reservoirs
October 2021
Design and optimization of well spacing is a key indicator for evaluating the development effect of shale gas reservoirs. On the basis of theoretical understanding, and after the verification by analogy,...
Solubility models of CH4, CO2, and noble gases and their geological applications
October 2023
Solubility models for CH4, CO2, and noble gases are widely used in Earth Sciences, playing pivotal roles in the study of homogenization pressure of inclusions, paleoclimate variation, gas migration...
Generation and resource potential of abiogenic alkane gas under organic–inorganic interactions in petroliferous basins
April 2021
The generation mechanism of abiogenic alkane gas and whether the gas has industrial values are the focus of international attention. CH4 generated by Fischer–Tropsch synthesis is an important constitutent...
Characteristics of effective helium source rocks and releasing mechanism of helium
June 2025
Different helium source rocks exhibit varying characteristics, including differences in the content and occurrence states of precursor elements such as uranium (U) and thorium (Th). In sedimentary rocks,...
Molecular dynamics and energy distribution of methane gas adsorption in shales
February 2023
This study uses simulations to explore the energy distributions involved in the adsorption of methane gas in shales. Molecular mechanics calculations were carried out using the Forcite module in BIOVIA...
Structural characteristics and main controlling factors on petroleum accumulation in Zagros Basin, Middle East
October 2018
Zagros Basin is one of the essential basins in the Middle East with the giant oil and gas reserves. It is indicated by regional tectonic and sedimentary evolution, basin structural division, petroleum...
Geological characteristics of biogenic gas formation and direction of favorable zones in the Quaternary mudstone of the Qaidam Basin, China
February 2025
Quaternary biogas is the main natural gas resource in the Qaidam Basin, where sandstone reservoirs have traditionally been the primary producers. However, reserve growth in these reservoirs has become...
Investigating curve smoothing techniques for enhanced shale gas production data analysis
December 2024
Evaluating shale gas reservoir economic viability remains challenging due to different factors such as long transient flow period and liquid loading resulting in successful shut-ins. Such factors cause...
Geochemical properties of helium and its origin in the Indus Basin, Pakistan
August 2025
The Indus Basin, one of Pakistan's most significant hydrocarbon provinces, is an underexplored region for helium resources. This study investigates the geochemical characteristics of helium in natural...
Method and application for ultra-deep carbonate reservoir quality evaluation: A case study of the Well X area in the Fuman Oilfield, Tarim Basin, China
August 2025
The Ordovician ultra-deep carbonate reservoirs in the Tarim Basin are rich in oil and gas resources. However, due to the influence of multiple periods of tectonic activity, their distribution shows...
Reservoir characteristics and effect on methane adsorption capacity in marine–continental transitional shale: The Carboniferous Yanghugou Formation in the Weiningbeishan area (eastern North Qilian orogenic belt), China
December 2025
Marine–continental transitional (MCT) shale from the Yanghugou Formation in the Weiningbeishan area represents a promising yet underexplored target for shale gas development. This study systematically...
Sweet spots in coal bed methane (CBM): Major controlling parameters identification through reservoir modeling, simulation, and uncertainty analysis to De-risk field development
October 2025
Sweet spots refer to specific areas within a reservoir where the parameters are optimal for achieving maximum production while minimizing the required footprint and investment. The high complexity of...
Status and prospects of deep oil and gas resources exploration and development onshore China
February 2018
Many significant breakthroughs have been made in regards to deep oil and gas exploration and development in recent years. However, a systematic analysis has not been carried out on the progress, challenges,...
Geochemical evaluation of Sarvak oil reservoir using biomarkers, carbon isotope and trace element: A case study from Southwest Iran
August 2024
The crude oils of the Sarvak reservoir were studied by integrated geochemical, inorganic and isotopic analyses to evaluate the origin, depositional conditions, geological age, thermal maturity of the...
Geological characteristics of Jurassic coal rock gas and evaluation of favorable zones in the northern structural belt of the Kuqa Depression, Tarim Basin, China
August 2025
The Kuqa Depression in the Tarim Basin has developed two sets of coal-bearing strata: the Triassic and the Jurassic. The Jurassic coals are characterized by multiple layers, large cumulative thickness,...