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...
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....
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...
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...
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...
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,...
Diagenetic facies of the Fengcheng Formation tight reservoir in the alkaline lake sedimentary environment, the southern margin of Mahu Sag, Junggar Basin, China
February 2025
With the aim of exploring the diagenetic characteristics, influence mechanisms, and distribution of dominant diagenetic facies in the Fengcheng Formation, at the southern margin of Mahu Sag in the Junggar...
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,...
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...
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...
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,...
Outcrop analogy with the subsurface geology and hydrocarbon prospectivity of Jaintiapur and adjacent areas in North-East Bangladesh
February 2023
The availability of hydrocarbons in the eastern part of Bangladesh indicates the presence of active petroleum systems in the Bengal basin. Although extensive research has been conducted in the Surma...
Sedimentary geology and geochemical approach to determine depositional environment of the Triassic turbidites bearing Semanggol Formation, NW Peninsular Malaysia
August 2020
The current study will provide sedimentary and geochemical characteristics of turbidites bearing part of the Triassic Semanggol Formation (SgF) from NW Peninsular Malaysia. Six localities have been...
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...
The pore size distribution and its relationship with shale gas capacity in organic-rich mudstone of Wufeng-Longmaxi Formations, Sichuan Basin, China
June 2016
The pore size distribution for the 23 fresh outcrop shale samples collected from Shuanghe Town and Changning County, as well as the 14 core samples collected from the Qianqian 1 core well in southeast...
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...
Geochemical characteristics, origin and main controlling factors of helium gas accumulation of helium-bearing natural gas in Sulige Gas Field, Ordos Basin, China
June 2025
The Ordos Basin is the largest natural gas producing region in China. Recent discoveries of two helium-rich natural gas fields (Dongsheng and Qingyang) shows promising helium resource potential. Sulige...
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,...
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...
The coupling action of helium and nitrogen enrichment and its significance
February 2024
Helium, a critical rare strategic resource primarily sourced from natural gas, is currently a subject of intense research regarding its enrichment processes within gas reservoirs. Investigating the...
Formation and distribution of large lithologic-stratigraphic oil & gas fields (provinces)
February 2018
Since the “Tenth Five-Year Plan”, lithologic and stratigraphic reservoirs have been the main contribution of both the discovery as well as reserve and production increase in China; there were about...
Helium resource and play classification systems, effective reservoir control elements, and enrichment patterns in China
August 2024
The classification system, effective reservoir control elements, and major enrichment and exploration modes of helium resources in China are analyzed based on the source of helium, carrier, geological...
Geological characteristics and main controlling factors of the helium-rich gas reservoirs in Sozak Gas Field, Kazakhstan
February 2024
Based on core data, physical properties, well logging, gas testing, composition, and helium distribution from 13 newly drilled wells, in combination with regional tectonic evolution, depositional background,...
Helium enrichment mechanism of helium-rich gas reservoirs in central and western China: Degassing and accumulation from ancient groundwater
October 2022
Helium, a coordinated resource in natural gas, is an essential and strategic resource, but research on its enrichment mechanism is relatively weak. This study investigated helium enrichment in major...