Secondary recovery methods such as waterflooding are often applied to depleted reservoirs for enhancing oil and gas production. Given that a large number of discretized elements are required in the numerical simulations of heterogeneous reservoirs, it is not feasible to run multiple full-physics simulations. In this regard, we propose a data-driven modeling approach to efficiently predict the hydrocarbon

Reservoir rock contains many multi-scale, unevenly distributed pores, and the pore structures of shale in different reservoirs and geological environments vary greatly. Because the seepage velocity and pressure field are related to the pore spatial variations, the inhomogeneity of the seepage is superimposed on the anisotropy of the rock’s physical properties, which will affect the distribution of

The pore-throat size determines the oil and gas occurrence and storage properties of sandstones and is a vital parameter to evaluate reservoir quality. Casting thin sections, field emission scanning electron microscopy, high-pressure mercury injection and rate-controlled mercury injection are used to qualitatively and quantitatively investigate the pore-throat structure characteristics of tight sandstone

Coalbed methane wells in the Shizhuangnan Block exhibit significant productivity differences. The reasons were determined based on the impact analysis of geological factors and drainage strategies on production capacity at 82 wells. Grey relational analysis was further utilized to quantitatively analyze the correlation degree of geological parameters to production characteristics. It is found that

The pore structure is an essential factor that influences the isothermal characteristics of methane adsorption of coal, and the pore structure is altered after methane adsorption. In this study, a high-rank coal sample was investigated via methane adsorption isothermal measurement, and changes in the pore structure were studied using low-pressure N2 adsorption and low-pressure CO2 adsorption before

Central air conditioning is the main energy-consuming equipment in modern large-scale commercial buildings. Its energy consumption generally accounts for more than 60% of the electricity load of an entire building, and there is a rising trend. Focusing on reducing central air conditioning energy consumption is a first priority to achieve energy savings in modern large-scale commercial buildings. To

Lithium battery is a new energy equipment. Because of its long service life and high energy density, it is widely used in various industries. However, as the number of uses increases, the life of the energy battery gradually decreases. Aging of battery will bring security risks to energy storage system. Through the life prediction of energy lithium battery, the health status of energy battery is assessed

Current work focusses on the wind potential assessment in South Punjab. Eleven locations from South Punjab have been analyzed using two-parameter Weibull model (with Energy Pattern Factor Method to estimate Weibull parameters) and five years (2014–2018) hourly wind data measured at 50 m height and collected from Pakistan Meteorological Department. Techno-economic analysis of energy production using

The adjustment and control of the water injection rate is a commonly used method for increasing the cumulative oil production of waterflooded reservoirs. This article studies the production optimization problem under the condition of a fixed total water injection rate. The production process is divided into several segments. Considering the correlation between the segment’s time intervals and the well’s

The geochemical feature and evolutionary history of hydrocarbons from the deep Cretaceous Bashijiqike (K1bs) Formation tight sandstone reservoir in the Dabei Gas Field, Kuqa Depression were investigated using gas chromatography, gas chromatography–mass spectrometry, inclusions petrography and micro-thermometry, laser Raman spectroscopy, and quantitative grain fluorescence. The result indicates that

In order to study the distributions of the biomarker of the continental source rocks in the Sichuan Basin, 71 source rock samples were collected from the Upper Triassic-Lower Jurassic strata in different regions. The n-alkanes, isoprenoids, terpane, sterane, sesquiterpenes, caranes and aromatics in the extracts were analyzed in detail. GC-MS analysis has been conducted to analyze the biomarker of the

To achieve zero-energy building target, both China and the US have planned pathway by formulating guidelines and standards. China has published National China technical standard for nearly zero energy building (CTS-NZEB), which defines detailed principles of zero-energy building. The US LEED zero energy evaluation system has been released based on LEED rating system. Defined target and scope have been

With the continuous production of oil wells, the reservoir properties, such as permeability and porosity, are changing accordingly, and the reservoir heterogeneity is also enhanced. This development is vulnerable to the problem of the one-way advance of injected water and low efficiency of water flooding. The interwell connectivity between injection and production wells controls the flow capacity of

The stability of underground water-sealed oil storage caverns is of great importance for safe excavation and operation. To analyze the scope of the failure zone and underground cavern stability accurately, a new method was developed that integrates the rock tunneling quality index Q-system and stability graph method with 3D laser scanning and numerical simulation. The point cloud data were obtained

Coalbed methane (CBM) is a kind of high-quality and large reserves unconventional gas resource, development of which can not only reduce methane emission from coal mining and alleviate the greenhouse effect, but also effectively reduce coal mining accidents and obtain economic energy (Karacan et al., 2011). The total CBM reserve in China is estimated to be 30.05 trillion cubic meters (Tcm), and the

Of the many available sources of renewable energy, solar thermal energy is the most abundant, the efficient use of which could have a broad impact on human life (Farjana et al., 2018). While the low-temperature solar thermal technology is relatively well developed and has been commercialized (Evangelisti et al., 2019), there is an urgent demand to develop technologies for medium-temperature solar steam

Global coal consumption grew by 1.4% in 2018, which was twice the average growth rate in the previous 10 years. Consumption growth was led by India and China (BP, 2019). Furthermore, coal utilization will continue to play a leading role in energy consumption in the next decades (Qin et al., 2015). Along with the massive consumption of coal, the processes such as storage, transportation, combustion

The development of renewable energy to reduce reliance on traditional thermal, coal, or nuclear power generation methods has been the goal of governments in recent years (Johansson, 1975). China as the world’s most important country for wind power and solar power, had the world’s largest wind (169 GW) and solar (77.7 GW) capacities along with highly competitive wind and solar photovoltaic (PV) manufacturing

Currently, tight oil is a relatively realistic substitute for the conventional hydrocarbon resources in the future. However, tight reservoirs are usually characterized by small pore throats, low permeability, large seepage resistance, and low single well production, and the effective development rates of the tight oil reservoirs are low (Lin et al., 2018, 2019; Shanley and Cluff, 2015; Wang et al.

A, Augusteen

After decades of development, China has become both the largest producer and the consumer of coal in the world. As of the end of 2018, the proven reserves of China’s coal resources are 138,819 million tons, of which more than 60% are distributed in the north-west (Dudley, 2019; Jinhua et al., 2018; Wang and Zhang, 2018); however, most of these areas have extremely fragile ecosystems, especially with

The exploration and development of shale gas in China have reached breakthroughs in recent years, and the marine shale gas in southern China has gained industrial production capacity (Jiang et al., 2016a; Zhang et al., 2004; Zou et al., 2010). Marine shales in southern China have favorable conditions such as high TOC, high Ro and overpressure. In addition to marine shale gas, marine-continental transitional

The Pearl River Mouth Basin is a Cenozoic hydrocarbon-rich basin in the northern part of South China Sea (Gong and Li, 1997; You et al., 2018). In this basin, the Wenchang Depression is an important part of the Zhu III Superdepression. In total, 1 × 108 m3 of crude oil and more than 300 × 108 m3 of natural gas have been found in the depression and its surrounding areas, demonstrating that the depression

Termit Basin is a typical Mesozoic-Cenozoic extensional rift basin located in the southeast of Niger (Figure 1(a)) (Fairhead, 1986; Genik, 1992, 1993; Liu et al., 2012a, 2012b). It is the second largest hydrocarbon prolific basin following the Muglad Basin in the West and Central African Rift System (WCARS) (Genik, 1992, 1993; Liu et al., 2012a, 2017; Wan et al., 2014; Xiao et al., 2019; Xue et al

Chemometrics is a useful tool for the analysis of multivariate data. With noise being identified and removed from the data, useful information can be extracted using chemometrics to show affinities and variations of samples (Kramer, 1988; Peters et al., 2005). Therefore, chemometric methods have been widely used in many disciplines (Bevilacqua et al., 2017; Chabukdhara and Nema, 2012; Madsen et al

Coal and gas outbursts (also referred to as outbursts) are geohazards that involve a sudden and violent disintegration of broken pulverized coal and gas from a coal mine working face to the roadway, permeating most coalbeds (Kissell and Iannacchione, 2014; Lama and Bodziony, 1998; Zhao et al., 2014). When mixed with air and ignition, serious blowouts will produce gas explosions and even fire accidents

Coals can be one of the most important source rocks for oil and gas (Ayinla et al., 2017; Petersen et al., 2010; Snowdon, 1991). Coaly rocks as sources for oil and gas have been found in a number of oil basins worldwide, including the Jurassic of the Turpan-Hami Basin (Huang et al., 1991; Shao et al., 2003; Wu et al., 2016; Zhang et al., 1997), the Late Cretaceous to Eocene of the Gippsland Basin (Smith

Forty-seven percent of the world’s population are expected to be living in areas of high water stress by 2030 (Organisation for Economic Co-operation and Development, 2010). One area that is already severely affected is the Middle East and North Africa (MENA) region, in which, according to the World Bank (2017), 5% of the world’s population currently lives; however, unfortunately, this region has less

With the growing size of the world economy, world energy consumption continues to increase. Meeting the challenges to economic development and environmental problems, the realization of sustainable economic development is getting more and more common recognition. Conserving resources, improving the energy efficiency, and developing new energy resources have become the theme of the world’s energy utilization

Coalbed methane (CBM) is becoming increasingly developed worldwide as an unconventional energy resource, with an increasing number of publications establishing CBM as efficient clean energy source (Baldassare et al., 2014). CBM is trapped in micropore structures of coal reservoirs due to formation pressure, while the coalbed is saturated with groundwater. During extraction of CBM, it is essential to

According to the difference of oil qualities between two batches in product oil pipelines, the contaminant oil is formed, of which the latter one is referred to as trailing oil. Mass transfer of the sub-laminar layer could be restricted by oil viscosity of different batches, thus causing the velocity gradients variation, which would, in turn, faster the formation of contaminant oil. During batch transportation

The primary objective of exploration in the petroleum industry is to find economically recoverable reserves. Petroleum exploration is a costly process which involves a great deal of complexity and uncertainty. A decision to drill in an area without careful consideration of the petroleum potential assessment would most likely result in a dry hole. So, potential modeling is a crucial step in petroleum

Gas hydrate is a kind of clean energy with enormous potential (Kimura et al., 2014; Tomaru et al., 2007), and the Juhugeng mining area of Muli basin in the Qilian Mountain permafrost is the only district of China where terrestrial gas hydrate has been found, which has aroused widespread attention (Fang et al., 2017; Lu et al., 2011; Liu et al., 2015; Wang, 2010). The gas hydrate is preserved in the

It is well known that energy is the primary engine and active ingredient for all growth and development (Shafiee and Topal, 2009; Sorrell et al., 2010). Traditional and unsustainable energy is polluting the environment and causing harmful emissions. On the other hand, renewable energy sources do not pollute the environment during consumption and have minimal impact on human health and ecosystems. For

With the advancement of coalbed methane (CBM) exploration and development in China, wireline-logging technologies played a crucial role in CBM reservoir evaluation and development (Chen et al., 2018; Hatherly et al., 2016; Huang et al., 2019; Ren et al., 2018; Teng et al., 2015; Wang et al., 2017; Zhou and Esterle, 2008; Zhou and O’Brien, 2016). However, several factors, such as instrument inconsistency

In major coal producing countries, such as China, the United States, Australia and India, coal fire disasters are very common and are considered as a global disaster problem (Havva, 2007; James et al., 2009; Kong et al., 2017; Mohalik et al., 2017; Parsa et al., 2017; Wang et al., 2018; Yang and Qiu, 2019). More than 95% of Chinese collieries perform underground coal mining, in which fire accidents

Taiwan is a small island with little natural resource and most of its energy relies on imports. In 2017, Taiwan relies on 98% imported energy (Bureau of Energy, 2017). Up to date, more than 95% of its energy comes from fossil fuels and 4.3% from nuclear power, with less than 1% from renewable energy sources (Bureau of Energy, 2017). Considering energy security and environmental sustainability, Taiwan

With the rapid development of social economy, people’s demand for electricity is also increasing (Abdel-Aal, 2004; Almuhtady et al., 2019; Li et al., 2017a, 2018b; Pai and Hong, 2005). Power load forecasting is based on the operating characteristics of the energy system, capacity expansion decisions, and other factors, and on the premise that certain forecast accuracy is met, load data for the future

As the comprehensive manifestation of sedimentation, the development of basin-marginal deltas is affected by many factors, including syndepositional faults, base-level change, tectonism, sediment supply, etc. (Hoy and Ridgway, 2003; Li et al., 2015a; López-Blanco et al., 2000; Lv et al., 2014; Muto and Steel, 2002; Pondrelli et al., 2008; Yang et al., 2017a). Among the basins with different genetic