Discovery and inspiration of large-and medium-sized glutenite-rich oil and gas fields in the eastern South China Sea:An example from Paleogene Enping Formation in Huizhou 26 subsag,Pearl River Mouth Basin

Based on the practice of oil and gas exploration in the Huizhou Sag of the Pearl River Mouth Basin,the geochemical indexes of source rocks were measured,the reservoir development morphology was restored,the rocks and minerals were characterized microscopically,the measured trap sealing indexes were compared,the biomarker compounds of crude oil were extracted,the genesis of condensate gas was identified,and the reservoir-forming conditions were examined.On this basis,the Paleogene Enping Formation in the Huizhou 26 subsag was systematically analyzed for the potential of oil and gas resources,the development characteristics of large-scale high-quality conglomerate reservoirs,the trapping effectiveness of faults,the hydrocarbon migration and accumulation model,and the formation conditions and exploration targets of large-and medium-sized glutenite-rich oil and gas fields.The research results were obtained in four aspects.First,the Paleogene Wenchang Formation in the Huizhou 26 subsag develops extensive and thick high-quality source rocks of semi-deep to deep lacustrine subfacies,which have typical hydrocarbon expulsion characteristics of"great oil generation in the early stage and huge gas expulsion in the late stage",providing a sufficient material basis for hydrocarbon accumulation in the Enping Formation.Second,under the joint control of the steep slope zone and transition zone of the fault within the sag,the large-scale near-source glutenite reservoirs are highly heterogeneous,with the development scale dominated hierarchically by three factors(favorable facies zone,particle component,and microfracture).The(subaqueous)distributary channels near the fault system,with equal grains,a low mud content(<5%),and a high content of feldspar composition,are conducive to the development of sweet spot reservoirs.Third,the strike-slip pressurization trap covered by stable lake flooding mudstone is a necessary condition for oil and gas preservation,and the NE and nearly EW faults obliquely to the principal stress have the best control on traps.Fourth,the spatiotemporal configuration of high-quality source rocks,fault transport/sealing,and glutenite reservoirs controls the degree of hydrocarbon enrichment.From top to bottom,three hydrocarbon accumulation units,i.e.low-fill zone,transition zone,and high-fill zone,are recognized.The main area of the channel in the nearly pressurized source-connecting fault zone is favorable for large-scale hydrocarbon enrichment.The research results suggest a new direction for the exploration of large-scale glutenite-rich reservoirs in the Enping Formation of the Pearl River Mouth Basin,and present a major breakthrough in oil and gas exploration.

Should medium-sized contractors still implement home-made information technologies on construction sites?

Despite the increasing dissemination of the Building Information Modeling(BIM)approach,many firms are still far from BIM and are only starting to adopt information technologies.We conducted an ethnographic action research with an industrial partner that implements information technologies on its construction sites,with a strong preference for home-made applications.Results show that the development of such applications faces difficulties and that multiple iterations and versions are necessary before achieving the expected goals because the required competencies are lacking among internal development teams.Moreover,initial needs evolve considerably throughout the application’s development and evaluation process.However,notwithstanding the difficulties encountered during the different application development phases,the industrial partner believes the decision to be worthwhile because of the desire to have internal control over the project data and the need to consider certain specificities related to business processes.

Drivers and barriers to engage enterprises in environmental management initiatives in Suzhou Industrial Park,China

Small-and medium-sized enterprises(SMEs)play an important role in sustainable development not only for their significant contribution to China’s economy,but also for their large share of total discharged pollutants.Therefore,this research takes the enterprises in Suzhou Industrial Park,China as the case study to investigate the environmental management practices of SMEs,and identify drivers and barriers to engaging businesses in environmental management initiatives.It is shown that,as in other countries,SMEs are less active in adopting environmental management initiatives than larger companies.Legislation remains the key driver to engage SMEs in environmental management initiatives.Based on the analysis,policy recommendations are also presented.

The impact of regulatory and financial discrimination on China's low-carbon development:Considering firm heterogeneity

Firms in China within the same industry but with different ownership and size have different production functions and face different emission regulations and financial conditions,thus can give very different responses to environmental policies.This fact has been largely ignored in most of the low-carbon development related literature.Using an augmented Chinese input–output table in which information about firm size(large-and small and medium-sized firms)and ownership(state-,foreign-,and private-owned firms)are explicitly reported,a dynamic computable general equilibrium model is developed in this study to analyze the impact of alternative low-carbon policy designs with different regulatory coverage and financial equalization on heterogeneous firms.Our simulation results show that,with the fully balanced regulation coverage and equalized financial system for heterogeneous firms,the total green investment accounts for 4%of GDP in 2030 for fulfilling China's commitment to reduce carbon emissions,which is the lowest among the various scenarios;about one-third of this investment is made by small and private firms;at the same time,green investment efficiency will be the highest,about 84%higher than that of the business-as-usual level.Therefore,a market-oriented and new technology-driven arrangement and mechanism for sharing emission reduction burden and allocating green investment across heterogeneous firms,especially to small and medium-sized firms,is crucial for China to achieve a more ambitious emission target in the long run.

How different types of financial service providers support small- and mediumenterprises under the impact of COVID-19 pandemic: From the perspective of expectancy theory

The 2019 novel coronavirus disease(COVID-19)pandemic has significantly impacted several aspects of the society and the economy.A problem that needs prompt attention in this situation is the increasing difficulties faced by small-and mediumsized enterprises(SMEs)in raising capital,which has aroused great concern from multiple stakeholders such as public administrations and regulators.As the major supply of capital,financial service providers(FSPs)play a critical role in financing SMEs.However,how FSPs deal with SME financing during shocks has not yet been fully researched.Accordingly,in this study,a theoretical framework based on expectancy theory is proposed to explore the expected strategic adjustments of FSPs in financing SMEs.Specifically,this study investigates 272 FSPs in China on their expectancy and attitude on financing to SMEs during the COVID-19 pandemic.Furthermore,this study has divided FSPs into three categories:commercial banks,non-bank financial institutions,and credit-enhanced FSPs.Differences among these categories are compared and analyzed.

The influence of the corporate social responsibility disclosures on consumer brand attitudes under the impact of CO VID-19

This study focuses on the use of we-media by small-and medium-sized enterprises(SMEs)to disclose internal corporate social responsibility(ICSR)under the impact of the 2019 novel coronavirus disease(COVID-19).Study 1 interprets the catalyst effect of COVID-19 on the externalization of SMEs'ICSR.The fuzzy grading evaluation method is initially verified.Under the impact of COVID-19,SMEs fulfilling their ICSR can enhance consumer brand attitudes.Study 2 uses a structural equation model and empirical analysis of 946 effective samples and finds that consumers perceive the self-sacrifice of corporations during the coronavirus disease period.SMEs can fulfill their ICSR to enhance the internal explanation mechanism of consumer brand attitudes and the moderating role of enterprise losses.