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Evolution of nC_(16)H_(34)-water-mineral systems in thermal capsules and geological implications for deeply-buried hydrocarbon reservoirs

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Geoscience Frontiers 2022年第2期13卷 139-158页

作者： Guang-Hui Yuan Zi-Hao Jin Ying-Chang Cao ke-Yu Liu Jon Gluyas Yan-Zhong Wang ke-lai xi key Laboratory of Deep Oil and Gas School of GeosciencesChina University of PetroleumQingdao 266580China Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and TechnologyNo.62Fuzhou South RoadQingdao 266071China Department of Earth Sciences Durham UniversityDurham DH13LEUK

Organic-inorganic interactions between hydrocarbons and most minerals in deeply buried reservoirs remain *** this study,gold capsules and fused silica capillary capsules(FSCCs)with different com-binations of nC_(16)H_(34),water(distilled water,CaCl_(2) water)and minerals(quartz,feldspar,calcite,kaolinite,smectite,and illite)were heated at 340℃ for 3-10 d,to investigate the evolution and reaction pathways of the organic-inorganic interactions in different hot *** heating,minerals exhibited little alteration in the anhydrous *** alterations,how-ever,occurred obviously in the hydrous *** inorganic components affected nC_(16)H_(34) degra-dation ***,water promoted the free-radical thermal-cracking reaction and step oxidation reaction but suppressed the free-radical cross-linking *** impact of CaCl_(2) water on the nC_(16)H_(34) degradation was weaker than the distilled water as high Ca^(2+)concentration suppressed the formation of free *** presence of different waters also affects the impact of different minerals on nC_(16)H_(34) degradation,via its impact on mineral *** the anhydrous nC_(16)H_(34)-mineral systems,calcite and clays catalyzed generation of low-molecular-weight(LMW)alkanes,particularly the ***,feldspar,and calcite catalyzed generation of high-molecular-weight(HMW)alkanes and PAHs,whereas clays catalyzed the generation of LMW alkanes and mono-bicyclic aromatic hydrocarbons(M-BAHs).In the hydrous nC_(16)H_(34)-distilled water-mineral systems,all minerals but quartz promoted nC_(16)H_(34) degra-dation to generate more LMW alkanes,less HMW alkanes and *** the nC_(16)H_(34)-CaCl_(2) water-mineral systems,the promotion impact of minerals was weaker than that in the systems with distilled *** study demonstrated the generation of different hydrocarbons with different fluorescence colors in the different nC_(16)H_(34)-water-mineral systems after heating for t

关键词： nC_(16)H_(34)-water-mineral systems Organic-inorganic interactions Hydrocarbon degradation Mineral alteration Deeply buried hot reservoirs

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The application of machine learning under supervision in identification of shale lamina combination types——A case study of Chang 7_(3)sub-member organic-rich shales in the Triassic Yanchang Formation,Ordos Basin,NW China

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Petroleum Science 2021年第6期18卷 1619-1629页

作者： Yuan-Yuan Zhang ke-lai xi Ying-Chang Cao Bao-Hai Yu Hao Wang Mi-Ruo Lin ke Li Yang-Yang Zhang Deep Oil and Gas key Laboratory China University of Petroleum(East China)QingdaoShandong 266580China No.7 Oil Recovery Plant of PetroChina Changqing Oilfield Company Xi'anShaanxi 710000China Fengcheng Oil Recovery Plant of PetroChina xinjiang Oilfield Company KaramayXinjiang 834000China

Organic rich laminated shale is one type of favorable reservoirs for exploration and development of continental shale oil in ***,with limited geological data,it is difficult to predict the spatial distribution of laminated shale with great vertical *** solve this problem,taking Chang 73 sub-member in Yanchang Formation of Ordos Basin as an example,an idea of predicting lamina combinations by combining'conventional log data-mineral composition prediction-lamina combination type identification'has been worked out based on machine learning under supervision on the premise of adequate knowledge of characteristics of lamina mineral ***,the main mineral components of the work area were figured out by analyzing core data,and the log data sensitive to changes of the mineral components was extracted;then machine learning was used to construct the mapping relationship between the two;based on the variations in mineral composition,the lamina combination types in typical wells of the research area were identified to verify the *** results show the approach of'conventional log data-mineral composition prediction-lamina combination type identification'works well in identifying the types of shale lamina *** approach was applied to Chang 73 sub-member in Yanchang Formation of Ordos Basin to find out planar distribution characteristics of the laminae.

关键词： Organic-rich shale Laminae combination Conventional logs Machine learning Ordos Basin

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How important is carbonate dissolution in buried sandstones:evidences from petrography,porosity,experiments,and geochemical calculations

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Petroleum Science 2019年第4期16卷 729-751页

作者： Guang-Hui Yuan Ying-Chang Cao Jon Gluyas Yan-Zhong Wang ke-Yu Liu ke-lai xi Tian Yang Jian Wang key Laboratory of Deep Oil and Gas School of GeoscienceChina University of PetroleumQingdao 266580ShandongChina State key Laboratory of Organic Geochemistry Guangzhou Institute of GeochemistryChinese Academy of Sciences Department of Earth Sciences Durham UniversityDurham DH1 3LEUK

Burial dissolution of feldspar and carbonate minerals has been proposed to generate large volumes of secondary pores in subsurface reservoirs. Secondary porosity due to feldspar dissolution is ubiquitous in buried sandstones;however, extensive burial dissolution of carbonate minerals in subsurface sandstones is still debatable. In this paper, we first present four types of typical selective dissolution assemblages of feldspars and carbonate minerals developed in di erent sandstones. Under the constraints of porosity data, water–rock experiments, geochemical calculations of aggressive fluids, diagenetic mass transfer, and a review of publications on mineral dissolution in sandstone reservoirs, we argue that the hypothesis for the creation of significant volumes of secondary porosity by mesodiagenetic carbonate dissolution in subsurface sandstones is in conflict with the limited volume of aggressive fluids in rocks. In addition, no transfer mechanism supports removal of the dissolution products due to the small water volume in the subsurface reservoirs and the low mass concentration gradients in the pore water. Convincing petrographic evidence supports the view that the extensive dissolution of carbonate cements in sandstone rocks is usually associated with a high flux of deep hot fluids provided via fault systems or with meteoric freshwater during the eodiagenesis and telodiagenesis stages. The presumption of extensive mesogenetic dissolution of carbonate cements producing a significant net increase in secondary porosity should be used with careful consideration of the geological background in prediction of sandstone quality.

关键词： Mesodiagenetic Carbonate dissolution Petrography Geochemical Buried sandstones

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The coupling of dynamics and permeability in the hydrocarbon accumulation period controls the oil-bearing potential of low permeability reservoirs:a case study of the low permeability turbidite reservoirs in the middle part of the third member of Shahejie

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Petroleum Science 2016年第2期13卷 204-224页

作者： Tian Yang Ying-Chang Cao Yan-Zhong Wang Henrik Friis Beyene Girma Haile ke-lai xi Hui-Na Zhang School of Geosciences China University of PetroleumQingdao 266580 Shandong China Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071 China Department of Geoscience Aarhus University Hoegh-Guldbergs Gade 2 8000 Aarhus C Denmark Department of Geosciences University of OsloP.O. Box 1047 Blindern 0316 Oslo Norway

The relationships between permeability and dynamics in hydrocarbon accumulation determine oil- bearing potential （the potential oil charge） of low perme- ability reservoirs. The evolution of porosity and permeability of low permeability turbidite reservoirs of the middle part of the third member of the Shahejie Formation in the Dongying Sag has been investigated by detailed core descriptions, thin section analyses, fluid inclusion analyses, carbon and oxygen isotope analyses, mercury injection, porosity and permeability testing, and basin modeling. The cutoff values for the permeability of the reservoirs in the accumulation period were calculated after detailing the accumulation dynamics and reservoir pore structures, then the distribution pattern of the oil-bearing potential of reservoirs controlled by the matching relationship between dynamics and permeability during the accumulation period were summarized. On the basis of the observed diagenetic features and with regard to the paragenetic sequences, the reservoirs can be subdivided into four types of diagenetic facies. The reservoirs experienced two periods of hydro- carbon accumulation. In the early accumulation period, the reservoirs except for diagenetic facies A had middle to high permeability ranging from 10 × 10-3 gm2 to 4207 × 10-3 lain2. In the later accumulation period, the reservoirs except for diagenetic facies C had low permeability ranging from 0.015 × 10-3 gm2 to 62× 10-3 -3m2. In the early accumulation period, the fluid pressure increased by the hydrocarbon generation was 1.4-11.3 MPa with an average value of 5.1 MPa, and a surplus pressure of 1.8-12.6 MPa with an average value of 6.3 MPa. In the later accumulation period, the fluid pressure increased by the hydrocarbon generation process was 0.7-12.7 MPa with an average value of 5.36 MPa and a surplus pressure of 1.3-16.2 MPa with an average value of 6.5 MPa. Even though different types of reservoirs exist, all can form hydrocarbon accumulations i

关键词： Reservoir porosity and permeabilityevolution Accumulation dynamics Cutoff-values ofpermeability in the accumulation period Oil-bearingpotential Low permeability reservoir The third memberof the Shahejie Formation Dongying Sag

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Factors influencing physical property evolution in sandstone mechanical compaction:the evidence from diagenetic simulation experiments

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Petroleum Science 2015年第3期12卷 391-405页

作者： ke-lai xi Ying-Chang Cao Yan-Zhong Wang Qing-Qing Zhang Jie-Hua Jin Ru-Kai Zhu Shao-Min Zhang Jian Wang Tian Yang Liang-Hui Du School of Geosciences China University of Petroleum Department of Geosciences University of Oslo Research Institute of Petroleum Exploration and Development CNPC

In order to analyze the factors influencing sandstone mechanical compaction and its physical property evolution during compaction processes, simulation exper- iments on sandstone mechanical compaction were carried out with a self-designed diagenetic simulation system. The experimental materials were modem sediments from dif- ferent sources, and the experiments were conducted under high temperature and high pressure. Results of the exper- iments show a binary function relation between primary porosity and mean size as well as sorting. With increasing overburden pressure during mechanical compaction, the evolution of porosity and permeability can be divided into rapid compaction at an early stage and slow compaction at a late stage, and the dividing pressure value of the two stages is about 12 MPa and the corresponding depth is about 600 m. In the slow compaction stage, there is a good exponential relationship between porosity and overburden pressure, while a good power function relationship exists between permeability and overburden pressure. There is also a good exponential relationship between porosity and permeability. The influence of particle size on sandstone mechanical compaction is mainly reflected in the slowcompaction stage, and the influence of sorting is mainly reflected in the rapid compaction stage. Abnormally high pressure effectively inhibits sandstone mechanical com- paction, and its control on sandstone mechanical com- paction is stronger than that of particle size and sorting. The influence of burial time on sandstone mechanical compaction is mainly in the slow compaction stage, and the porosity reduction caused by compaction is mainly con- trolled by average particle size.

关键词： Primary porosity Mechanical compaction Unconsolidated sand Diagenetic simulation experiment

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Rotating Massive Strangeon Stars and X-Ray Plateau of Short GRBs

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Research in Astronomy and Astrophysics 2024年第3期24卷 47-57页

作者： xi-Yan Yang xiao-Yu lai Wei-Wei Tan Ren-xin Xu School of Physics and Optoelectronic Engineering Yangtze UniversityJingzhou 434023China Research Center for Astronomy Hubei University of EducationWuhan 4300205China key Laboratory of Quark and Lepton Physics Central China Normal UniversityMinistry of EducationWuhan 430079China School of Physics Peking UniversityBeijing 100871China Kavli Institute for Astronomy and Astrophysics Peking UniversityBeijing 100871China

Strangeon stars,which are proposed to describe the nature of pulsar-like compact stars,have passed various observational *** maximum mass of a non-rotating strangeon star could be high,which implies that the remnants of binary strangeon star mergers could even be long-lived massive strangeon *** study rigidly rotating strangeon stars in the slowly rotating approximation,using the Lennard-Jones model for the equation of *** can significantly increase the maximum mass of strangeon stars with unchanged baryon numbers,enlarging the mass-range of long-lived strangeon *** spin-down after merger,the decrease of radius of the remnant will lead to the release of gravitational *** into account the efficiency of converting the gravitational energy luminosity to the observed X-ray luminosity,we find that the gravitational energy could provide an alternative energy source for the plateau emission of X-ray *** fitting results of X-ray plateau emission of some short gamma-ray bursts suggest that the magnetic dipole field strength of the remnants can be much smaller than that of expected when the plateau emission is powered only by spin-down luminosity of magnetars.

关键词： dense matter-(stars) pulsars general-(stars) gamma-ray burst general

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Al-modified yolk-shell silica particle-supported NiMo catalysts for ultradeep hydrodesulfurization of dibenzothiophene and 4,6-dimethyldibenzothiophene:Efficient accessibility of active sites and suitable acidity

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Petroleum Science 2024年第1期21卷 654-666页

作者： ke Yu Wei-Min Kong Zhen Zhao Ai-Jun Duan Lian Kong xi-Long Wang State key Laboratory of Heavy Oil Processing China University of PetroleumBeijing102249China Institute of Catalysis for Energy and Environment College of Chemistry and Chemical EngineeringShenyang Normal UniversityShenyang 110034LiaoningChina

Yolk-shell SiO2 particles(YP)with center-radial meso-channels were fabricated through a simple and effective ***-containing YP-supported NiMo catalysts with different Al amounts(NiMo/AYP-x,x=Si/Al molar proportion)were prepared and dibenzothiophene(DBT)and 4,6-dimethyl-dibenzothiophene(4,6-DMDBT)were employed as the probes to evaluate the hydrodesulfurization(HDS)catalytic *** as-prepared AYP-x carriers and corresponding catalysts were characterized by some advanced characterizations to obtain deeper correlations between physicochemical properties and the HDS *** average pore sizes of series AYP-x supports are above 6.0 nm,which favors the mass transfer of organic *** cavity between the yolk and the shell is beneficial for the enrichment of S-containing compounds and the accessibility between reactants and active *** embedded into the silica framework could facilitate the formation of Lewis(L)and Brønsted(B)acid sites and adjust the metal-support interaction(MSI).Among all the as-synthesized catalysts,NiMo/AYP-20 catalyst shows the highest HDS *** improved HDS activity of NiMo/AYP-20 catalyst is attributed to the perfect combination of excellent structural properties of the yolk-shell mesoporous silica,enhanced acidity,moderate MSI,and good accessibility/dispersion of active components.

关键词： Al-containing yolk-shell silica particles Accessibility Acidity Metal-support interaction Hydrodesulfurization

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Sensing properties and mechanisms of LaF_(3)-Co_(3)O_(4) nanorods for low-concentration methanol detection

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Rare Metals 2024年第5期43卷 2193-2204页

作者： xiao-xi He Hong-Feng Chai Yi-Wen Zhou ke-Wei Liu Ze-xin Yu Chao Zhang College of Mechanical Engineering Yangzhou UniversityYangzhou225127China Institutefor Manufacturing Technologies of Ceramic Components and Composites(IMTCCC) University of Stuttgart70569 StuttgartGermany

Methanol is one of the characteristic gases that distinguish between healthy individuals and lung cancer(LC)lesions in exhaled human *** concentration in exhaled breath is generally below one part per million(1×10^(-6)).The second-phase composite is widely regarded as one of the methods to improve the gas-sensing perfor-mance of metal oxide semiconductor(MOS)*** this study,LaF_(3)-Co_(3)O_(4) was synthesized by a simple hydrothermal method to enhance its low-concentration methanol gas-sensing performance.5 at%LaF_(3)-Co_(3)O_(4) nanorods exhibited excellent methanol detection performance,including a wider linear detection concentration range(0.2×10^(-6)~5×10^(-6)),a response value exceeding 4.0 for 1×10^(-6)methanol at 275°C and 75%relative humidity(RH),long-term stability(maximum deviation within 15%over 2 weeks),and excellent *** mechanism of performance enhancement was studied using various techniques,and density functional *** special spinel structure of Co_(3)O_(4),the high ionic migration of F-in LaF_(3),the larger specific surface area of 5 at%LaF_(3)-Co_(3)O_(4) nanorods,and the generated crystal defects all explain the excellentmethanol gas-sensing *** work provides a novel route to prepare MOS composite materials for low-concentration methanol gas detection.

关键词： Gas sensor LaF_(3) Co_(3)O_(4) Methanol Lung cancer

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A Hybrid Approach for Predicting the Remaining Useful Life of Bearings Based on the RReliefF Algorithm and Extreme Learning Machine

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Computer Modeling in Engineering & Sciences 2024年第8期140卷 1405-1427页

作者： Sen-Hui Wang xi Kang Cheng Wang Tian-Bing Ma xiang He ke Yang School of Mechatronics Engineering Anhui University of Science and TechnologyHuainan232001China Institute of Energy Hefei Comprehensive National Science CenterHefei230031China

Accurately predicting the remaining useful life(RUL)of bearings in mining rotating equipment is vital for mining *** research aims to distinguish the features associated with the RUL of bearings and propose a prediction model based on these selected *** study proposes a hybrid predictive model to assess the RUL of rolling element *** proposed model begins with the pre-processing of bearing vibration signals to reconstruct sixty time-domain *** hybrid model selects relevant features from the sixty time-domain features of the vibration signal by adopting the RReliefF feature selection ***,the extreme learning machine(ELM)approach is applied to develop a predictive model of RUL based on the optimal *** model is trained by optimizing its parameters via the grid search *** training datasets are adjusted to make them most suitable for the regression model using the cross-validation *** proposed hybrid model is analyzed and validated using the vibration data taken from the public XJTU-SY rolling element-bearing *** comparison is constructed with other traditional *** experimental test results demonstrated that the proposed approach can predict the RUL of bearings with a reliable degree of accuracy.

关键词： Bearing degradation remaining useful life estimation RReliefF feature selection extreme learning machine

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Ferroptosis in liver diseases:Fundamental mechanism and clinical implications

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World Journal of Gastroenterology 2024年第32期30卷 3730-3738页

作者： Ming-Shuang lai xi-Peng Yan Donald R Branch Melika Loriamini Li-Min Chen The Joint Laboratory on Transfusion-Transmitted Diseases(TTDs)Between Institute of Blood Transfusion Chinese Academy of Medical Sciences and Nanning Blood CenterNanning 530003Guangxi Zhuang Autonomous RegionChina Department of Medicine and Laboratory Medicine and Pathobiology Centre for InnovationCanadian Blood ServicesHamilton 397086Canada Institute of Blood Transfusion Chinese Academy of Medical Sciences and Peking Union Medical CollegeKey Laboratory for Transfusion-transmitted Infectious Diseases of the Health Commission of Sichuan ProvinceChengdu 610052Sichuan ProvinceChina

This editorial discusses a recently published paper in the World Journal of *** research focuses on p53's regulatory mechanism for controlling ferroptosis,as well as the intricate connection between ferroptosis and liver *** is a specific form of programmed cell death that is dependent on iron and displays unique features in terms of morphology,biology,and genetics,distinguishing it from other forms of cell *** can affect the liver,which is a crucial organ responsible for iron storage and *** evidence indicates a robust correlation between ferroptosis and the advancement of liver disorders.P53 has a dual effect on ferroptosis through various distinct signaling ***,additional investigations are required to clarify the regulatory function of p53 metabolic targets in this complex association with *** the future,researchers should clarify the mechanisms by which ferroptosis and other forms of programmed cell death contribute to the progression of liver *** and controlling important regulatory factors associated with ferroptosis present a promising therapeutic strategy for liver disorders.

关键词： Liver disease P53 Programmed cell death Ferroptosis Therapeutic target

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