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Control of slope-pattern on the deposition of fan-delta systems:a case study of the Upper Karamay Formation,Junggar Basin

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Frontiers of Earth Science 2024年第2期18卷 384-399页

作者： Mingxuan GAO Xinghe YU Shunli LI Wenmiao ZHANG Songhao HU Menglu ZHANG School of Energy Resource China University of GeosciencesBeijing 100083China key laboratory of marine reservoir evolution and hydrocarbon enrichment mechanism(ministry of education) China University of GeosciencesBeijing 100083China College of Geosciences China University of PetroleumBeijing 102249China No.1 Oil Production Plant Xinjang Oilfield CompanyKaramay 834099China

The Mesozoic fan deltas in the north-west margin of the Junggar Basin,as important petroleum reservoirs,exhibited complex facies change and internal structures with strong heterogeneity which were controlled by the transformation of slope-patterns,bringing great challenges to the study of sedimentary *** Upper Karamay Formation at north-west margin of the Junggar Basin was the objective in this paper which attempts to clarify the mechanism of sedimentary response and sand-body distribution of fan delta systems under the control of slope-pattern *** on a data set of cores,well logs and seismic,two types of slope-pattern were identified in the study area,which include steep-to-gentle in the south and gentle-to-steep in the *** control of difference slope-patterns on the sand-body distribution was clarified based on the analysis of the sedimentary dynamics,facies characteristics,and depositional evolution of the fan *** study shows that the transport mechanism of sediments on the steep-slope was dominated by debris flows,developing coarse-grained,thick-bedded lobes with poor structural maturity of *** the gentle-slope,the deposition was dominated by hyperconcentrated-traction currents,forming relatively fine-grained,thin-bedded lobes with increased sandy *** sand-bodies show frequent bar-channel transformation and channel down-cutting under the steep slope setting,which exhibit migration of isolated river channels on the gentle *** the steep-to-gentle pattern,the coase-grained sediments were mainly accumulated at slope toe,generally developed equiaxial ***,the coarse-grained clasts were preserved both at proximal and distal lobes on the gentle-to-steep slopes,showing obvious lateral extension of the fan *** slope patterns controlled sedimentary respond rates of the fan deltas during lake level *** comparing the modern cases of fan systems worldwide,the control of slope patterns on deposit

关键词： fan delta slope-pattern sedimentary characteristics the Upper Karamay Formation

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Three-dimensional structural models,evolution and petroleum geological significances of transtensional faults in the Ziyang area,central Sichuan Basin,SW China

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petroleum Exploration and Development 2024年第3期51卷 604-620页

作者： TIAN Fanglei GUO Tonglou HE Dengfa GU Zhanyu MENG Xianwu WANG Renfu WANG Ying ZHANG Weikang LU Guo School of Energy Resources China University of Geosciences(Beijing)Beijing 100083China key laboratory of Marine Reservoir Evolution and Hydrocarbon Enrichment Mechanism Ministry of EducationBeijing 100083China Sinopec Southwest Oil and Gas Company Chengdu 610031China

With drilling and seismic data of Transtensional(strike-slip)Fault System in the Ziyang area of the central Sichuan Basin,SW China plane-section integrated structural interpretation,3-D fault framework model building,fault throw analyzing,and balanced profile restoration,it is pointed out that the transtensional fault system in the Ziyang 3-D seismic survey consists of the northeast-trending FI19 and FI20 fault zones dominated by extensional deformation,as well as 3 sets of northwest-trending en echelon normal faults experienced dextral shear *** them,the FI19 and FI20 fault zones cut through the Neoproterozoic to Lower Triassic Jialingjiang Formation,presenting a 3-D structure of an“S”-shaped *** before Permian and during the Early Triassic,the FI19 and FI20 fault zones underwent at least two periods of structural ***,the 3 sets of northwest-trending en echelon normal faults are composed of small normal faults arranged in pairs,with opposite dip directions and partially left-stepped *** before Permian,they had formed almost,restricting the eastward growth and propagation of the FI19 fault *** FI19 and FI20 fault zones communicate multiple sets of source rocks and reservoirs from deep to shallow,and the timing of fault activity matches well with oil and gas generation *** there were favorable Cambrian-Triassic sedimentary facies and reservoirs developing on the local anticlinal belts of both sides of the FI19 and FI20 fault zones,the major reservoirs in this area are expected to achieve breakthroughs in oil and gas exploration.

关键词： transtensional(strike-slip)fault three-dimensional structural model structural evolution petroleum geological significance Ziyang area Sichuan Basin

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Dynamic simulation of GEH-IES with distributed parameter characteristics for hydrogen-blending transportation

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Frontiers in Energy 2024年第4期18卷 506-524页

作者： Dengji ZHOU Jiarui HAO Wang XIAO Chen WANG Chongyuan SHUI Xingyun JIA Siyun YAN key laboratory of Power Machinery and Engineering of the ministry of education Shanghai Jiao Tong UniversityShanghai 200240China Sichuan Research Institute Shanghai Jiao Tong UniversityChengdu 610042China West Pipeline Company National Petroleum and Natural Gas Pipe Network Group Co.Ltd.Urumqi 830012China Institute of Intelligent Manufacturing Modern Industry Xinjiang UniversityUrumqi 830046China

For the purpose of environment protecting and energy saving,renewable energy has been distributed into the power grid in a considerable ***,the consuming capacity of the power grid for renewable energy is relatively *** an effective way to absorb the excessive renewable energy,the power to gas(P2G)technology is able to convert excessive renewable energy into ***-blending natural gas pipeline is an efficient approach for hydrogen ***,hydrogen-blending natural gas complicates the whole integrated energy system(IES),making it more problematic to cope with the equipment failure,demand response and dynamic ***,dynamic simulation of distribution parameters of gas-electricity-hydrogen(GEH)energy system,especially for hydrogen concentration,still remains a *** dynamics of hydrogen-blending IES is *** tackle the issue,an iterative solving framework of the GEH-IES and a cell segment-based method for hydrogen mixing ratio distribution are proposed in this *** typical numerical cases studying the conditions under which renewables fluctuate and generators fail are conducted on a real-word *** results show that hydrogen blending timely and spatially influences the flow parameters,of which the hydrogen mixing ratio and gas pressure loss along the gas pipeline are negatively correlated and the response to hydrogen mixing ratio is ***,the hydrogen-blending amount and position also have a significant impact on the performance of the compressor.

关键词： gas-electricity IES dynamic simulation hydrogen blending power to gas(P2G) renewable energy

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Boosting kinetic separation of ethylene and ethane on microporous materials via crystal size control

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Chinese Journal of Chemical Engineering 2024年第1期65卷 85-91页

作者： Yixuan Ma Cong Yu Lifeng Yang Rimin You Yawen Bo Qihan Gong Huabin Xing Xili Cui key laboratory of Biomass Chemical Engineering of ministry of education College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310012China Fundamental Science&Advanced Technology Lab PetroChina Petrochemical Research InstituteChina National Petroleum CorporationBeijing 102200China ZJU-Hangzhou Global Scientific and Technological Innovation Center Zhejiang UniversityHangzhou 311200China Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering Hangzhou 310027China

The adsorptive separation of C_(2)H_(4)and C_(2)H_(6),as an alternative to distillation units consuming high energy,is a promising yet challenging *** great similarity in the molecular size of C_(2)H_(4)and C_(2)H_(6)brings challenges to the regulation of adsorbents to realize efficient dynamic ***,we reported the enhancement of the kinetic separation of C_(2)H_(4)/C_(2)H_(6)by controlling the crystal size of ZnAtzPO_(4)(Atz=3-amino-1,2,4-triazole)to amplify the diffusion difference of C_(2)H_(4)and C_(2)H_(6).Through adjusting the synthesis temperature,reactant concentration,and ligands/metal ions molar ratio,ZnAtzPO4 crystals with different sizes were *** single-component kinetic adsorption tests and binary-component dynamic breakthrough experiments confirmed the enhancement of the dynamic separation of C_(2)H_(4)/C_(2)H_(6)with the increase in the crystal size of ZnAtzPO_(4).The separation selectivity of C_(2)H_(4)/C_(2)H_(6)increased from 1.3 to 98.5 with the increase in the crystal size of ZnAtzPO_(4).This work demonstrated the role of morphology and size control of adsorbent crystals in the improvement of the C_(2)H_(4)/C_(2)H_(6)kinetic separation performance.

关键词： Adsorption Adsorbent Ethylene Binary mixture Crystal size control Kinetic separation

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Visible-light-enabled multicomponent synthesis of trifluoromethylated 3-indolequinoxalin-2(1H)-ones without external photocatalysis

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Green Synthesis and Catalysis 2024年第1期5卷 51-56页

作者： Letian Zhang Kai Zheng Pengfei Zhang Min Jiang Jiabin Shen Chao Chen Chao Shen key laboratory of Pollution Exposure and Health Intervention of Zhejiang Province College of Biology and Environmental EngineeringZhejiang Shuren UniversityHangzhou 310015China College of petroleum Chemical Industry Changzhou UniversityChangzhou 213164China College of Material Chemistry and Chemical EngineeringKey Laboratory of Organosilicon Chemistry and Material TechnologyMinistry of EducationHangzhou Normal UniversityHangzhou 311121China

A novel and sustainable visible-light-enabled multicomponent reaction involving quinoxalin-2(1H)-ones,indoles,and CF3SO2Na that does not require an external photocatalyst is *** photoinduced reaction employs air as the sole oxidant,thereby providing a green and highly step-efficient approach to a series of biologically important trifluoromethylated 3-indolequinoxalin-2(1H)-ones.

关键词： Visible-light-catalysis Three-component reaction Trifluoromethylation Quinoxalin-2(1H)-Ones Indoles

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Systematic engineering of BiVO_(4)photoanode for efficient photoelectrochemical water oxidation

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Carbon Energy 2024年第4期6卷 12-21页

作者： Zhiting Liang Meng Li Kai‐Hang Ye Tongxin Tang Zhan Lin Yuying Zheng Yongchao Huang Hongbing Ji Shanqing Zhang Guangzhou key laboratory of Clean Transportation Energy Chemistry School of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhouChina Chemical Engineering Guangdong laboratory Jieyang Branch of ChemistryJieyangChina key laboratory for Water Quality and Conservation of the Pearl River Delta Institute of Environmental Research at Greater Bay AreaMinistry of EducationGuangzhou UniversityGuangzhouChina State key laboratory Breeding Base of Green‐Chemical Synthesis Technology Institute of Green Petroleum Processing and Light Hydrocarbon ConversionCollege of Chemical EngineeringZhejiang University of TechnologyHangzhouChina School of Environment and Science Centre for Catalysis and Clean EnergyGriffith UniversityGold Coast CampusSouthportQueenslandAustralia

BiVO_(4)is one of the most promising photoanode materials for photoelectrochemical(PEC)solar energy conversion,but it still suffers from poor photocurrent density due to insufficient light‐harvesting efficiency(LHE),weak photogenerated charge separation efficiency(Φ_(Sep)),and low water oxidation efficiency(Φ_(OX)).Herein,we tackle these challenges of the BiVO_(4)photoanodes using systematic engineering,including catalysis engineering,bandgap engineering,and morphology *** particular,we deposit a NiCoO_(x)layer onto the BiVO_(4)photoanode as the oxygen evolution catalyst to enhance theΦ_(OX)of Fe‐g‐C_(3)N_(4)/BiVO_(4)for PEC water oxidation,and incorporate Fe‐doped graphite‐phase C_(3)N_(4)(Fe‐g‐C_(3)N_(4))into the BiVO_(4)photoanode to optimize the bandgap and surface areas to subsequently expand the light absorption range of the photoanode from 530 to 690 nm,increase the LHE andΦ_(Sep),and further improve the oxygen evolution reaction activity of the NiCoO_(x)catalytic ***,the maximum photocurrent density of the as‐prepared NiCoO_(x)/Fe‐g‐C_(3)N_(4)/BiVO_(4)is remarkably boosted from 4.6 to 7.4 mA cm^(−2).This work suggests that the proposed systematic engineering strategy is exceptionally promising for improving LHE,Φ_(Sep),andΦ_(OX)of BiVO_(4)‐based photoanodes,which will substantially benefit the design,preparation,and large‐scale application of next‐generation high‐performance photoanodes.

关键词： bismuth vanadate carbon nitride charge separation heterojunction water oxidation

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Low-firing and temperature stability regulation of tri-rutile MgTa_(2)O_(6)microwave dielectric ceramics

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International Journal of Minerals,Metallurgy and Materials 2024年第8期31卷 1935-1943页

作者： Chengzhi Xu Hongyu Yang Hongcheng Yang Linzhuang Xing Yuan Wang Zhimin Li Enzhu Li Guorui Zhao School of Advanced Materials and Nanotechnology Xidian UniversityXi’an 710071China Academy of Advanced Interdisciplinary Research Xidian UniversityXi’an 710071China School of New Energy and Materials Southwest Petroleum UniversityChengdu 610500China National Engineering Research Center of Electromagnetic Radiation Control Materials and key laboratory of Multi-Spectral Absorbing Materials and Structures of ministry of education University of Electronic Science and Technology of ChinaChengdu 610054China Songshan Lake Materials laboratory A1 Building University Innovation ParkDongguan 523808China

A glass frit containing Li_(2)O-MgO-ZnO-B_(2)O_(3)-SiO_(2)component was used to explore the low-temperature sintering behaviors and microwave dielectric characteristics of tri-rutile MgTa_(2)O_(6)ceramics in this *** good low-firing effects are presented due to the high matching relevance between Li_(2)O-MgO-ZnO-B_(2)O_(3)-SiO_(2)glass and MgTa_(2)O_(6)*** pure tri-rutile MgTa_(2)O_(6)structure remains unchanged,and high sintering compactness can also be achieved at 1150℃.We found that the Li_(2)O-MgO-ZnO-B_(2)O_(3)-SiO_(2)glass not only greatly improves the low-temperature sintering characteristics of MgTa_(2)O_(6)ceramics but also maintains a high(quality factor(Q)×resonance frequency(f))value while still improving the temperature ***,great microwave dielectric characteristics when added with 2wt%Li_(2)O-MgO-ZnO-B_(2)O_(3)-SiO_(2)glass can be achieved at 1150℃:dielectric constant,ε_(r)=26.1;Q×f=34267 GHz;temperature coefficient of resonance frequency,τ_(f)=-8.7×10^(-6)/℃.

关键词： MgTa_(2)O_(6) ceramic microwave dielectric characteristics glass

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Enhanced gas production and CO_(2) storage in hydrate-bearing sediments via pre-depressurization and rapid CO_(2) injection

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Chinese Journal of Chemical Engineering 2024年第3期67卷 126-134页

作者： Hongnan Chen Yifei Sun Bojian Cao Minglong Wang Ming Wang Jinrong Zhong Changyu Sun Guangjin Chen State key laboratory of Heavy Oil Processing China University of PetroleumBeijing 102249China School of Chemistry and Chemical Engineering Changsha University of Science&TechnologyChangsha 410114China

Carbon emission reduction and clean energy development are urgent demands for mankind in the coming *** an efficient CO_(2) storage method can significantly reduce CO_(2) emissions in the short *** this study,we attempted to construct sediment samples with different residual CH_(4) hydrate amounts and reservoir conditions,and then investigate the potentials of both CO_(2) storage and enhanced CH_(4) recovery in depleted gas hydrate deposits in the permafrost and ocean zones,*** results demonstrate that CO_(2) hydrate formation rate can be significantly improved due to the presence of residual hydrate seeds;However,excessive residual hydrates in turn lead to the decrease in CO_(2) storage *** by the T-P conditions of the reservoir,the storage amount of liquid CO_(2) can reach 8 times that of gaseous CO_(2),and CO_(2) stored in hydrate form reaches 2-4 ***,we noticed two other advantages of this *** is that CO_(2) injection can enhance CH_(4) recovery rate and increases CH_(4) recovery by 10%-20%.The second is that hydrate saturation in the reservoir can be restored to 20%-40%,which means that the solid volume of the reservoir avoids serious ***,this is crucial for protecting the goaf *** summary,this approach is greatly promising for high-efficient CO_(2) storage and safe exploitation of gas hydrate.

关键词： Hydrate Depressurization CO_(2) storage CH_(4) production Reservoir remediation

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A general climatology of categorized Martian ionospheric irregularities

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Science China Earth Sciences 2024年

作者： Xin WAN Jiahao ZHONG Yongqiang HAO Chao XIONG Hui WANG Yutian CAO Jun CUI Yiwen LIU Qiaoling LI Jiawei KUAI Planetary Environmental and Astrobiological Research laboratory (PEARL) School of Atmospheric Sciences Sun Yat-sen University key laboratory of Tropical Atmosphere-Ocean System Ministry of Education Department of Space Physics College of Electronic Information Luojia Laboratory Wuhan University School of Physics and Electronic Information Shangrao Normal University School of petroleum China University of Petroleum-Beijing at Karamay College of Astronautics Nanjing University of Aeronautics and Astronautics

A climatological survey of Martian ionospheric plasma density irregularities was conducted by exploring the in-situ measurements of the Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft. The irregularities were first classified as enhancement, depletion, and oscillation. By checking the simultaneous magnetic field fluctuation, the irregularities have been classified into two types:with or without magnetic signatures. The classified irregularities exhibit diverse global occurrence patterns, as those with magnetic signatures tend to appear near the periphery of the crustal magnetic anomaly (MA), and those without magnetic signatures prefer to appear either inside of the MA or outside of the MA, depending on the type and solar zenith angle. Under most circumstances, the irregularities have a considerable occurrence rate at altitudes above the ionospheric dynamo height (above 200 km), and the magnetization state of the ions seems irrelevant to their occurrence. In addition, the irregularities do not show dependence on magnetic field geometry, except that the enhancement without magnetic signatures favors the vertical field line, implying its equivalence to the localized bulge. Other similarities and discrepancies exist in reference to previous studies. We believe this global survey complements previous research and provides crucial research clues for future efforts to clarify the nature of the Martian ionospheric irregularities.

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Self-adaptive gas flow and phase change behaviors during hydrate exploitation by alternate injection of N2 and CO_(2)

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petroleum Science 2024年第3期21卷 2120-2129页

作者： Bo-Jian Cao Yi-Fei Sun Hong-Nan Chen Jin-Rong Zhong Ming-Long Wang Ming Wang Chang-Yu Sun Guang-Jin Chen State key laboratory of Heavy Oil Processing China University of PetroleumBeijing102249China School of Chemistry and Chemical Engineering Changsha University of Science&TechnologyChangsha410114HunanChina

Since hydrate resources play a part of the stratigraphic framework structure in sediments,establishing a safe and economic method for hydrates exploitation remains the primary challenge to this *** the proposed methods,the spontaneous displacement of CH_(4) from hydrate cages by CO_(2) seems to be a perfect mechanism to address gas production and CO_(2) storage,especially in today's strong demand for carbon reduction and replacing clean *** extensive lab researches,in the past decade,injecting a mixture of CO_(2) and small molecule gas has become a key means to enhance displacement efficiency and has great potential for ***,there is a lack of in-depth research on gas flow in the reservoir,while the injected gas always passes through low-saturated hydrate areas with high permeability and then occurs gas channel in a short term,finally resulting in the decreases in gas production efficiency and produced gas ***,we explored a new injection-production mode of alternate injection of N2 and CO_(2) in order to fully coordinate the advantages of N2 in enhanced hydrate decomposition and CO_(2) in solid storage and heat *** alternate"taking"and"storing"processes perfectly repair the problem of the gas channel,achieving self-regulation effect of CH_(4) recovery and CO_(2) *** 3-D experimental results show that compared to the mixed gas injection,CH_(4) recovery is increased by>50%and CO_(2) storage is increased by>70%.Additionally,this alternate injection mode presented a better performance in CH_(4) concentration of produced gas and showed outstanding N2 utilization ***,we analyzed its self-adaptive gas flow mechanism and proposed an application model of"one injection and multiple production".We look forward to this study accelerating the application of CO_(2)-CH_(4) replacement technology.

关键词： Hydrate Replacement CH_(4) recovery CO_(2)storage Reservoir remediation

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