Different from the conventional, unconventional natural gas accumulations have obvious particularity in reservoir forming conditions, enrichment mechanism, distribution modes, prediction method and exploration technology. Analyzing the reservoir…
In this paper, the research progress on the extraction and analysis methods of petroleum hydrocarbon in water and sediment were reviewed. The principle, application scope, advantages, disadvantages and applications of various extraction methods and…
Degradation of petroleum hydrocarbons (HC) in sediments is often limited by the availability of electron acceptors. By allowing long-distance electron transport (LDET) between anoxic sediments and oxic overlying water, bioelectrochemical snorkels may…
In order to explore the micro-dynamic principle of radial deposition and adhesion behavior and analyze the effect-principle of the features in construction of rough tube surfaces on each link, a molecular dynamic model was established to characterize…
Salt cavern gas storage is an important strategic method to shave the fluctuation of supply- demand of natural gas in China. However, due to low grades of salt beds, there remains lots of insoluble sediments accounting for 1/3 up to 2/3 of the…
The water-soluble fraction (WSF) of an oil contains different classes of petroleum hydrocarbons and, despite their low potential for bioaccumulation, these can be highly toxic to biota. Nematodes are usually the most abundant and species-rich group…
Solar radiation exposure can increase the toxicity of bioaccumulated oil compounds in a diversity of aquatic species. We investigated the photoenhanced toxicity of weathered South Louisiana crude oil in sediment and water accommodated fractions (WAF)…
We investigated the sediment properties and gas hydrate saturations in pressure-cores recovered during the National Gas Hydrate Program Expedition 02 (NGHP-02) in Areas B, C, and E of the KrishnaGodavari Basin (KG Basin) off the eastern margin of…
Oily sludge is a hazardous waste, so its improper disposal not only pollutes the environment but also endangers human health. In this study, following the principle of resource recycling, reduction and harmless treatment of oil sludge, we used…
In order to explore the micro-dynamic principle of radial deposition and adhesion behavior and analyze the effect-principle of the features in construction of rough tube surfaces on each link, a molecular dynamic model was established to characterize…
Gas hydrates, dominated by methane, are commonly found in hydrocarbon seep environments, and are recovered in piston and gravity cores from marine sediments. With the presence of hydrocarbons and other geological and geophysical parameters, gas…
The deepwater drilling and cementing techniques achieved significant development in recent years. However, the engineering response mechanism of natural gas hydrate sediment (NGHS) during drilling and cementing process is far from clear, which…
Natural gas hydrate (NGH) is widely distributed in permafrost and submarine areas. It has been considered as a potential energy resource in the future since its reserves are estimated two times more than those of the conventional fossil energy.…
The characterization, occurrence, fate and behaviour of spilled oil in the affected boreal freshwater ecosystem were investigated in this study following a spill in March 2015, in Gogama, Ontario, Canada. A physicochemical property analysis of the…
Sand production, which poses a great challenge for sustainable methane gas production, is commonly encountered during natural gas extraction from unconsolidated hydrate-bearing sediments. However, studies on the subject are still limited. This paper…
Studies on gas hydrate phase equilibrium conditions are reported widely in the literature. However, the data available for natural gas hydrates (NGHs) in real marine conditions are limited. In this study, NGH dissociation conditions in bulk brine and…
Natural gas hydrate has become a hotspot for researchers because of its considerable economic benefits and potential strategic significance. In the hydrate exploitation process, the hydrate-bearing sediments get damaged, and the coupling effect of…
Anaerobic degradation of petroleum hydrocarbons (PH)is an important process in contaminated environment. The application of rhamnolipids in anaerobic degradation of PH was not extensively studied and inconclusive. This study explored the combined…
The article considers formation conditions of oil and gas potential and evaluated the prospects of searching of oil and gas accumulations in deep-lying (5 km and more) sediments of the south-eastern part of the Volga-Ural oil and gas province…
Bioremediation is among the most basic and reliable way to eliminate pollutants by transforming the toxic petroleum components into less toxic metabolites. In order to compare the change of bacterial community during oil-biodegradation process, two…
In the exploration, processing, and storage of oil, oil leakage accidents often occur. However, most organic oil pollutants are difficult to degrade. When oil pollutants permeate and invade the soil, the mineral composition and structural…
Most of Russia's gas fields are located in the North, where climate is harsh, which complicates their operation due to numerous factors such as hydrates being generated in the gas-field flowlines that connect the wells to the gas processing plant…
Differences in hydrocarbon samples were assessed using compound-specific isotope analysis (CSIA). Samples from on-water spills and fuel tanks from possible sources (moored ships) were taken from the Norfolk Navy Base in Norfolk, VA (USA) and volatile…
As part of the Bureau of Land Management's Outer Continental Shelf Baseline Program in the Southern California Bight, a total of five different Hydrocarbon laboratories were involved in the analytical effort to measure petroleum hydrocarbons in…
The indigenous hydrocarbons in samples of zooplankton, shrimp (Penaeus aztecus) and sediment are extracted by refluxing with a series of organic solvents fractionated by column chromatography and then resolved by high resolution gas chromatography.…
In a study to determine whether or not the Northeast Monsoon has a major effect on the distribution of metals in sediments, total Al, Cr, Fe, Mn, Ni, Pb and Zn were measured in twenty six surface sediment samples were collected from the South China…
High pour point properties of crude oil are generally due to the high wax content, so the study of the laws and the characteristics of wax deposition are significant for taking steps to save energy and transport safely. For the wax deposition of high…
Gas hydrates, dominated by methane, are commonly found in hydrocarbon seep environments, and are recovered in piston and gravity cores from marine sediments. With the presence of hydrocarbons and other geological and geophysical parameters, gas…
Palk Bay is a marine protected area with a sensitive ecosystem like coral reefs, seagrass meadows, and mangroves with rich biodiversity. Observations indicate that these ecosystems are at risk from organic contaminants like petroleum hydrocarbon. In…
The characterization, occurrence, fate and behaviour of spilled oil in the affected boreal freshwater ecosystem were investigated in this study following a spill in March 2015, in Gogama, Ontario, Canada. A physicochemical property analysis of the…
The requirement of oil has increased the potential hazard of the accidents of the marine oil more evident, which urgently needs human to pay attention to monitoring oil production in order to reduce the economic loss and environmental damage.…
The large waves caused by Hurricane Ivan have received considerable media coverage because of the extensive damage they wrought on the offshore oil industry and on the coastal areas of the Gulf of Mexico. It has been speculated that the associated…
Most of Russia's gas fields are located in the North, where climate is harsh, which complicates their operation due to numerous factors such as hydrates being generated in the gas-field flowlines that connect the wells to the gas processing plant…
Black powder (BP) is a recognized threat to gas transmission pipelines' integrity and operation in many different regions around the world. Early detection of black powder in susceptible lines becomes a prerequisite for efficient pipeline management…
The production of natural gas in the Far North is associated with a number of difficulties, including harsh climate, lack of transport and energy infrastructure, etc. One of the key problems is the possibility of hydrate development in gas wells and…
High pour point properties of crude oil are generally due to the high wax content, so the study of the laws and the characteristics of wax deposition are significant for taking steps to save energy and transport safely. For the wax deposition of high…
As part of the Bureau of Land Management's Outer Continental Shelf Baseline Program in the Southern California Bight, a total of five different Hydrocarbon laboratories were involved in the analytical effort to measure petroleum hydrocarbons in…
The indigenous hydrocarbons in samples of zooplankton, shrimp (Penaeus aztecus) and sediment are extracted by refluxing with a series of organic solvents fractionated by column chromatography and then resolved by high resolution gas chromatography.…
The National Institute for Undersea Science and Technology (NIUST) owns and operates two deep-sea AUVs [1, 2]. The International Submarine Engineering (ISE) built Eagle Ray a torpedo shaped, 2200 meter rated Autonomous Undersea Vehicle (AUV),…
Most of Russia's gas fields are located in the North, where climate is harsh, which complicates their operation due to numerous factors such as hydrates being generated in the gas-field flowlines that connect the wells to the gas processing plant…
The production of natural gas in the Far North is associated with a number of difficulties, including harsh climate, lack of transport and energy infrastructure, etc. One of the key problems is the possibility of hydrate development in gas wells and…
The exploitation of unsealed marine hydrate deposits is of greater commercial value, but also more challenging because of the risks of the invading of huge body of sea water and subsidence of the seabed. In this work, we proposed a new method to…
Microplastic particles have been recognized as global hazardous pollutants in the last few decades pointing to the importance of analyzing and monitoring microplastics, especially in soils and sediments. This study focused on a multi-step approach…
Petroleum migration patterns in the present-day shelf area of the Columbus basin reflect a complex interaction of structural evolution, stratigraphic architecture, and fault-seal behavior. Thermogenic charge access is ultimately controlled by the…
The distribution of U, Sr, V, Ni, Cr, B, and Mo in sediments of the Al-Batin Alluvial Fan in southern Iraq was investigated. A total of 18 sediment samples were collected in the study area and the clay and silt fraction was analyzed using a six-step…
The tremendous increase of plastic production, its intensive usage in packaging, as transport material, and the insufficient management of plastic garbage have led to a rise in microplastic particles as an anthropogenic contaminant in our…
In a study to determine whether or not the Northeast Monsoon has a major effect on the distribution of metals in sediments, total Al, Cr, Fe, Mn, Ni, Pb and Zn were measured in twenty six surface sediment samples were collected from the South China…
Petroleum systems in the Tertiary sections of the Gulf of Mexico and Niger Delta, among other basins, are characterized by the close association between petroleum accumulation and overpressure. Although overpressure is generated mainly by compaction…
In Tabasco the petroleum industry pollutes soil recurrently by oil spills. We analysed Pb, V, Ni and Cr concentrations in water samples, and total metal contents and metal fractions in soil samples of contaminated and non-contaminated soils and in…
This paper describes a simple and rapid sample preparation procedure allowing to measure the stable carbon isotopic composition of polycyclic aromatic hydrocarbons (PAHs) in petroleum and in sediments. The aromatic fraction is first purified and…