This study proposes a new integrated framework to evaluate groundwater safety by characterizing the short-term spatiotemporal variations of methane migration risk attributed to shale gas development. A set of probabilistic- and conditionally…
One of the main environmental problems in oil production in the world today is the utilization of associated petroleum gas (APG) by combustion it in flares. At the same time, this process has enormous economic damage, since APG is a potential raw…
The subsurface contamination by petroleum hydrocarbons (PHC) from leaking underground storage tanks, pipelines and refilling stations is one of the serious issues directly affecting the quality of groundwater. Application of advanced oxidation…
Oil accidents largely occur due to mining and transport by tankers, but also due to the pipeline transport. The reason can be a leakage of the pipelines and their damage caused by their age or external influences. The leaks of oil into the soil…
Conventional contaminated site assessment requires sophisticated sampling and laboratory analyses, which are costly and time consuming. There is a trend for soil analyses to shift from complex laboratory procedures to rapid, simple and…
Biochar has been widely applied for the remediation of petroleum-contaminated soil. However, the effect of biochar on the transport of petroleum degradation bacteria has not been studied. A typical Gram-positive petroleum degradation…
Scope: This document specifies requirements and gives recommendations on the management of geohazard risks of pipeline during the design, construction and operational periods. This document shall apply to all operators and pipeline systems (existing…
The sequential excavation method (SEM) is extremely useful for excavating caverns with high sidewalls and large spans. A new SEM for excavating large-scale underground water-sealing oil storage caverns and protecting groundwater level is proposed.…
In the process of CO2 geological sequestration, there is a risk that CO2 will leak into groundwater, resulting in a series of physical and chemical reactions, with influence on chemical compositions of groundwater. In this work, numerical simulation…
Underground water-sealed storage cavern is an important way for petroleum strategic reserve in China, which owns lots of outstanding advantages, such as low operating costs, high safety, and land resource conservation. As the major structure in…
In order to prevent the increase of Cl- concentration caused by seawater intrusion to affect the service life of underground water-sealing oil storage caverns, the evaluation and control methods of seawater intrusion are studied based on the…
Iron (Fe) isotope is an effective tool for tracing Fe transformation, migration, and biogeochemical cycling in the Earth's surface system. In this study, the Fe content and stable isotope composition (56Fe/54Fe) in two Gleysol profiles (M1 and M2)…
The industrial development of Xinjiang is facing serious carbon emissions and water shortage problems in this region. It is urgent to find a sustainable development way. CO2 geological storage combined with enhanced water recovery (CO2-EWR) is a…
Maintaining and supporting complete biodegradation during remediation of petroleum hydrocarbon contaminated groundwater in constructed wetlands is vital for the final destruction and removal of contaminants. We aimed to compare and gain insight into…
Assessing the optimal placement and design of a largescale high temperature energy storage system in crystalline bedrock is a challenging task. This study applies and evaluates various methods and strategies for presite investigation for a potential…
Underground water-sealed oil-storage caverns still face many challenges after completion, such as oil leakage and excessive water inflow into caverns. However, there is a lack of high quality and efficient operation precedent for large-scale…
To investigate the mechanism of local porosity modification in a carbonate reservoir caused by the acidic components associated with natural gas generation, a numerical model for the charging of natural gas rich in acidic components (CO2) was…
The paper studies the degree of C2-C4 components redistribution in hydrates during their formation in water and mineralized solutions of hydrocarbonate and chloride types. It was found that in brines of the chloride type, in comparison with…
Reactive transport modeling was employed to investigate the relative importance of fractionations associated with gas solubility, sorption and diffusive transport on dissolved methane, ethane and propane concentrations and the isotopic composition of…
Recent analytical advances have provided evidence that groundwater affected by oil sands process-affected water (OSPW) is reaching the Athabasca River at one location. To understand and discriminate the toxicological risks posed by OSPW-influenced…
During the 1991 Gulf War, oil wells in the oil fields of Kuwait were set aflame and destroyed. This resulted in severe crude oil pollution of the countries only fresh water aquifers. Here, for the first time the natural attenuation and biodegradation…
Biogeochemical gradient forms in vadose zone, yet little is known about the assembly processes of microbial communities in this zone under petroleum disturbance. This study collected vadose zone soils at three sites with 0, 5, and 30 years of…
Underground petroleum storage caverns with the containment of groundwater is one of the methods for storage of petroleum. In the construction process of large water sealing petroleum storage caverns, the appearance of engineering excavation changes…
In order to evaluate the combined effects of drip irrigation and petroleum extraction activities on As contamination and distribution in local soils, a total of 141 soil and 30 groundwater (GW) samples from field sites drip-irrigated with GW in…
Hydrothermal liquefaction (HTL) is a kind of technology that can convert wet organic waste into energy. Toilet feces contain many pathogens, which can cause pollution to groundwater. Crude glycerol is a byproduct in the process of bio-diesel…
The role of natural attenuation processes in groundwater contamination by petroleum hydrocarbons is of intense scientific and practical interest. This study provides insight into the biodegradation effects in groundwater at a site contaminated by…
Produced water that detached from petroleum production process is often reimbursed into the surrounding environment. This might have negative impact for environment
One of the main environmental problems in oil production in the world today is the utilization of associated petroleum gas (APG) by combustion it in flares. At the same time, this process has enormous economic damage, since APG is a potential raw…
Biochar has been widely applied for the remediation of petroleum-contaminated soil. However, the effect of biochar on the transport of petroleum degradation bacteria has not been studied. A typical Gram-positive petroleum degradation…
In this paper, a more efficient way of rainwater harvesting is proposed. Due to vast globalization, urbanization and modernization the quality of our surroundings is degraded, which in turn, affects the natural phenomenon of rains too. The burning of…
Land subsidence due to groundwater extraction can cause a permanent loss of groundwater storage, and thus mitigating this is crucial for sustainable groundwater management. One challenge in effective mitigation is accurately predicting the effect of…
The geotechnical performance of a pilot unlined crude oil storage caverns in granite is assessed using finite element method. Laboratory and field tests were performed to determine the geotechnical properties of the granite. Numerical simulations…
Extensive development of horizontal drilling and hydraulic fracturing enhanced energy production but raised concerns about drinking-water quality in areas of shale-gas development. One particularly controversial case that has received significant…
Petroleum hydrocarbon contamination is a global problem which can cause long-term environmental damage and impacts water security. Natural source zone depletion (NSZD) is the natural degradation of such contaminants. Chemotaxis is an aspect of NSZD…
Oil leakage, which is inevitable in the process of extraction, processing, transportation and storage, seriously undermines the soil and groundwater environment. Surfactants can facilitate the migration and solution of oil contaminants from…
This study evaluates the risk of groundwater contamination from unlined oil pits, in the Northern Ecuadorian Amazon (NEA). Applying spatial analysis, several maps were provided for its integration in land use planning, public health improvement and…
This study provides a detailed scientific data on the quality of groundwater in Oleh. It aimed at helping to facilitate the planning of potable water supply scheme for the community. Water samples from boreholes (BHs) and hand-dug wells (HDWs) in the…
Siting a new underground water-sealed crude oil storage adjacent to an existing one is a potential way to increase the capacity of strategic energy storage. The study presented herein is a comprehensive case study to assess the water-sealed safety on…
This study provides a detailed scientific data on the quality of groundwater in Oleh. It aimed at helping to facilitate the planning of potable water supply scheme for the community. Water samples from boreholes (BHs) and hand-dug wells (HDWs) in the…
Characteristics of ground penetrating radar (GPR) in leakage contamination of Guiyang Shengfu gasoline station was discussed. Study revealed that GPR is an important means to detect leakages of underground storage tanks. The authors pointed out that…
The heat transfer between the pipeline fluid and the ambient is important to accurately model the flow. In this study, the modelled transient thermal regime in the soil around the pipeline is compared to the measurements. The thermal and hydraulic…
The geotechnical performance of a pilot unlined crude oil storage caverns in granite is assessed using finite element method. Laboratory and field tests were performed to determine the geotechnical properties of the granite. Numerical simulations…
A water curtain system consists of a lot of boreholes arranged in a systematic manner. To maintain a tightly-sealed storage of substances (e.g. crude oil), water curtain systems are usually employed for underground storage in hard rocks. In this…
The heat transfer between the pipeline fluid and the ambient is important to accurately model the flow. In this study, the modelled transient thermal regime in the soil around the pipeline is compared to the measurements. The thermal and hydraulic…
In-situ recovery of oil from oil shale using the convection heating method requires a hydraulic fracturing process to provide transportable channels for thermal carriers and shale oil and gas released by oil-shale pyrolysis. However, flowing…
Thermal springs issuing through Chhotanagpur Granitic Gneissic Complex (CGGC) in Hazaribagh district of Jharkhand is moderately alkaline (pH = 8.759.13) with the surface temperature ranging from 40 to 89 C. Geochemical data of the six studied thermal…
Compound-specific carbon and hydrogen isotope analysis was used to investigate biodegradation of benzene and ethylbenzene in contaminated groundwater at Dow Benelux BV industrial site. 13C values for dissolved benzene and ethylbenzene in downgradient…
Based on the joints random distribution characteristics of surrounding rock of the China's first large underground crude oil storage caverns, containment properties of underground crude oil storage caverns were assessed by using flow-solid coupling…
Triaxial compression tests had been performed to determine the properties of the rock mass around unlining underground crude oil a storage cavern which was the first one in China. The execution situation of the tunnel project and the seepage law of…