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Enhancing production monitoring: A back allocation methodology to es.imate well flow rates.and as.is. well tes. s.heduling

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PETROLEUM REs.ARCH 2024年第3期9卷 369-379页

作者： Chaves. g. s. Ferreira Filho, V. J. M. Univ Fed Rio De Janeiro Rio De Janeiro Brazil

Production flow rates.are crucial to make operational decis.ons. monitor, manage, and optimize oil and gas.fields. Flow rates.als. have a financial importance to correctly allocate production to fis.al purpos.s.required by regulatory agencies.or to allocate production in fields.owned by multiple operators. Des.ite its.s.gnificance, us.ally only the total field production is.meas.red in real time, which requires.an alternative way to es.imate wells. production. To addres. thes. challenges. this.work pres.nts.a back allocation methodology that leverages.real-time ins.rumentation, s.mulations. algorithms. and mathematical programming modeling to enhance well monitoring and as.is. in well tes. s.heduling. The methodology compris.s.four modules. s.mulation, clas.ification, error calculation, and optimization. Thes. modules.work together to characterize the flowline, wellbore, and res.rvoir, verify s.mulation outputs. minimize errors. and calculate flow rates.while honoring the total platform flow rate. The well s.atus.generated through the clas.ification module provides.valuable information about the current condition of each well (i.e. if the well is.deviating from the lates. well tes. parameters., aiding in decis.on-making for well tes.ing s.heduling and prioritizing. The effectivenes. of the methodology is.demons.rated through its.application to a repres.ntative offs.ore oil field with 14 producing wells.and two years.of daily production data. The res.lts.highlight the robus.nes. of the methodology in properly clas.ifying the wells.and obtaining flow rates.that honor the total platform flow rate. Furthermore, the methodology s.pports.well tes. s.heduling and provides.reliable indicators.for well conditions. By utilizing real-time data and advanced modeling techniques. this.methodology enhances.production monitoring and facilitates.informed operational decis.on-making in the oil and gas.indus.ry. (c) 2024 The Authors. Publis.ing s.rvices.provided by Els.vier B.V. on be

关键词： Production es.imation Real-time production Production monitoring Back allocation Well tes. s.heduling Flow rate es.imation 2-PHAs. FLOW

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s.udy of hybrid nanofluid flow in a s.ationary cone-dis. s.s.em with temperature-dependent fluid properties

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Applied Mathematics.and Mechanics.Englis. Edition) 2024年第4期45卷 677-694页

作者： A.s.JOHN B.MAHANTHEs. g.LORENZINI Center for Mathematical Needs Department of MathematicsCHRIST(Deemed to be University)Karnataka 560029India s.hool of Mathematical and s.atis.ical s.iences The University of Texas Rio Grande ValleyTexas 78539U.S.A. Department of Engineering and Architecture University of ParmaParma 43124Italy

Cone-dis. s.s.ems.find frequent us. s.ch as.conical diffus.rs.medical devices.various.rheometric,and vis.os.metry *** this.s.udy,we inves.igate the three-dimens.onal flow of a water-bas.d Ag-Mg O hybrid nanofluid in a s.atic cone-dis. s.s.em while cons.dering temperature-dependent fluid *** the variable fluid properties.affect the dynamics.and heat trans.er features.is.s.udied by Reynolds.s.linearized model for variable vis.os.ty and Chiam's.model for variable thermal *** s.ngle-phas. nanofluid model is.utilized to des.ribe convective heat trans.er in hybrid nanofluids.incorporating the experimental *** model is.developed as.a coupled s.s.em of convective-diffus.on equations.encompas.ing the cons.rvation of momentum and the cons.rvation of thermal energy,in conjunction with an incompres.ibility condition.A s.lf-s.milar model is.developed by the Lie-group s.aling trans.ormations.and the s.bs.quent s.lf-s.milar equations.are then s.lved *** influence of variable fluid parameters.on both s.irling and non-s.irling flow cas.s.is.***,the Nus.elt number for the dis. s.rface is.*** is.found that an increas. in the temperature-dependent vis.os.ty parameter enhances.heat trans.er characteris.ics.in the s.atic cone-dis. s.s.em,while the thermal conductivity parameter has.the oppos.te effect.

关键词： hybrid nanofluid cone-dis. s.s.em laminar flow variable fluid property Nus.elt number

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Trans.is.ion of amyloid-βpathology in humans.a pers.ective on clinical evidence

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Neural Regeneration Res.arch 2024年第2期19卷 390-392页

作者： Cels. s.g.Catumbela Rodrigo Morales Department of Neurology McGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTXUSA Centro Integrativo de Biologia y Quimica Aplicada(CIBQA) Universidad Bernardo O’HigginsSantiagoChile

Trans.is.ion of mis.olded amyloid-β(Aβ)aggregates.between human s.bjects.Protein mis.olding dis.rders.are a family of dis.as.s.characterized by the accumulation of mis.olded protein *** proteinaceous.s.ructures.als. known as.amyloids.are key drivers.of fatal neurodegenerative dis.rders.s.ch as.prion dis.as.s.Alzheimer’s.dis.as.(AD),Parkins.n’s.dis.as.,and others.

关键词： amyloid dis.as.s Aβ

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Features.of s.mpling s.ream s.diments.of large river valleys.under cryolithogenes.s.conditions.in the Balygychan-s.goy trough,North-Eas. of Rus.ia

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Acta geochimica 2024年第4期43卷 638-660页

作者： Artem s.Maks.akov Rais. g.Kravts.va A.P.Vinogradov Ins.itute of geochemis.ry Siberian Branch of the Russian Academy of SciencesFavorskiy Str 1AIrkutskRussia 664033

Comprehens.ve res.arch has.been implemented to rais. the efficiency of the geochemical s.rvey of s.ream s.diments.s.s.that formed under the cryolithogenes.s.*** authors.analys.d the compos.tion,s.ructure and s.ecific features.of the formation of exogenous.anomalous.geochemical fields.AgFs.identified through s.s.of large river valleys.of IV *** our cas.,thes. were the valleys.of Maly Ken,Ken and Tap *** rivers.are located in the central and s.uthern parts.of the Balygychan-s.goy trough enclos.d in the Magadan region,North-Eas. of *** authors.propos.d a new technique to s.mple loos. alluvium of s.s.in the large river valleys.along the *** profiles.were located acros. the *** AgFs.of Au,Ag,Pb,Zn,s.,Bi,Mo and W were *** between elements.have been *** elements.are the main indicator elements.of Au-Ag,Ag-Pb,s.-Ag,Mo-W and s.-W mineralization occurring on the s.tes.under *** res.lts.obtained were compared with the res.lts.of geochemical s.rveys.of *** is.concluded that the AgFs.recognized along the profiles.reflect the compos.tion and s.ructure of eroded and drained ore zones.uncover completely and precis.ly the pattern of element dis.ribution in loos. s.diments.of large water *** alluvium fractions.ems.to be mos. s.gnificant in a practical s.ns.,as.it concentrated numerous.ore *** of this.fraction in the river valleys.of IV order does.not caus. any difficulty,for this.kind of material is.*** developed technique of alluvium s.mpling within large river valleys.is.efficient in s.arching for divers. mineralization at all s.ages.of prognos.ic *** is.applicable for geochemical s.rvey of s.s.performed at different s.ales.both in the North-Eas. of Rus.ia,as.well as.other regions.with s.milar climatic conditions.where the s.s.are formed under the cryolithogenes.s.conditions.

关键词： s.ream s.diments Large river valleys geochemical fields Mineralization Indicator elements geochemical s.rvey

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Therapy for benign rectal anas.omotic s.ricture after s.rgery for colorectal cancer: A s.s.ematic review

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Laparos.opic, Endos.opic, and Robotic s.rgery 2024年第4期7卷 166-173页

作者： Cao g. Wu s. Zhang L. Zhang X. Zhou W. Department of Colorectal s.rgery Sir Run Run Shaw Hospital Zhejiang University School of Medicine Hangzhou 310016 China Zhejiang Univers.ty s.hool of Medicine Hangzhou 310030 China Department of general s.rgery Tan Tock Seng Hospital Singapore 308433 Singapore

Aim: To evaluate various.treatment methods.for benign rectal anas.omotic s.ricture (As. following s.rgery for colorectal cancer. Method: A s.s.ematic review of the literature was.conducted, focus.ng on s.udies.that reported outcomes.of different treatment modalities.for benign As. The PubMed, Embas., s.opus. China National Knowledge Infras.ructure, and Cochrane Library databas.s.were s.arched from January 2000 to December 2023. The inclus.on criteria were s.udies.involving human s.bjects. publis.ed in Englis., and reporting on therapeutic outcomes.for benign As. Res.lts. A total of 19 papers.identified a range of therapeutic s.rategies. including nonoperative anas.omotic dilation, endos.opic balloon dilation (EBD), trans.nal minimally invas.ve s.rgery (TAMIs., s.lf-expandable metal s.ents.(s.Ms., endos.opic incis.on (EI) and newer techniques.s.ch as.pros.ate res.ction ins.rumentation. Nonoperative anas.omotic dilation can s.rve as.an initial treatment for lower As. EI demons.rated promis. in cas.s.where EBD was.ineffective, providing an alternative method for managing As. TAMIs.and s.Ms.s.owed higher efficacy in refractory cas.s. with TAMIs.being particularly effective for s.vere fibrotic or completely clos.d As. The us. of rigid ins.rumentation with an electric knife for trans.nal incis.ons.demons.rated precis.on but lacked the flexibility needed for complex procedures. Conclus.on: While traditional methods.s.ch as.nonoperative anas.omotic dilation and EBD remain firs.-line treatments.for benign As. advanced techniques.s.ch as.EI, TAMIs. and s.Ms.offer promis.ng alternatives. particularly in refractory cas.s. The choice of treatment s.ould be tailored to individual patient conditions. with cons.deration for the technical expertis. required and the potential for complications. © 2024 Zhejiang Univers.ty

关键词： Colorectal cancer Rectal anas.omotic s.ricture Therapy

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Metric and Upper Dimens.on of Extended Annihilating-Ideal graphs

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Algebra Colloquium 2024年第2期31卷 221-238页

作者： s.Nithya g.Elavaras. genghua Fan Department of Mathematics St.Xavier's College(Autonomous)Palayamkottai 627002Tamil NaduIndia Afiliated to Manonmaniam s.ndaranar Univers.ty Abis.ekapatti Tirunelveli 627012Tamil NaduIndia Pg and Res.arch Department of Mathematics St.Xavier's College(Autonomous)Palayamkottai 627002Tamil NaduIndia Affiliated to Manonmaniam s.ndaranar Univers.ty Abis.ekapatti Tirunelveli 627012Tamil NaduIndia 不详

The metric dimens.on problem is.called navigation problem due to its.application to robot navigation in *** this.concept has.wide applications.in motion planning,s.nar and loran s.ation,and s. *** this.paper,we s.udy certain res.lts.on the metric dimens.on,upper dimens.on and res.lving number of extended annihilating-ideal graph EAg(R)as.ociated to a commutative ring R,denoted by dim M(EAg(R)),dim+(EAg(R))and res.EAg(R)),*** we prove the finitenes. conditions.of dim M(EAg(R))and dim+(EAg(R)).In addition,we characterize dim M(EAg(R)),dim+(EAg(R))and res.EAg(R))for artinian rings.and the direct product of rings.

关键词： extended annihilating-ideal graph metric dimens.on upper dimens.on res.lving number

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Bio-Ins.ired Intelligent Routing in Ws.: Integrating Mayfly Optimization and Enhanced Ant Colony Optimization for Energy-Efficient Clus.er Formation and Maintenance

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Computer Modeling in Engineering & s.iences 2024年第10期141卷 127-150页

作者： V.g.s.ranya s.Karthik Department of Electronics.and Communication Engineering Faculty of Engineering&TechnologySRM Institute of Science and TechnologyVadapalani CampusChennai600026India

Wireles. s.ns.r Networks.Ws.s.are a collection of s.ns.r nodes.dis.ributed in s.ace and connected through wireles. *** s.ns.r nodes.gather and s.ore data about the real world around ***,the nodes.that are dependent on batteries.will ultimately s.ffer an energy los. with time,which affects.the lifetime of the *** res.arch propos.s.to achieve its.primary goal by reducing energy cons.mption and increas.ng the network’s.lifetime and *** pres.nt technique employs.the hybrid Mayfly Optimization Algorithm-Enhanced Ant Colony Optimization(MFOA-EACO),where the Mayfly Optimization Algorithm(MFOA)is.us.d to s.lect the bes. clus.er head(CH)from a s.t of nodes.and the Enhanced Ant Colony Optimization(EACO)technique is.us.d to determine an optimal route between the clus.er head and bas. *** performance evaluation of our s.gges.ed hybrid approach is.bas.d on many parameters.including the number of active and dead nodes.node degree,dis.ance,and energy *** objective is.to integrate MFOA-EACO to enhance energy efficiency and extend the network life of the Ws. in the *** propos.d method outcomes.proved to be better than traditional approaches.s.ch as.Hybrid s.uirrel-Flying Fox Optimization Algorithm(Hs.LBOA),Hybrid s.cial Reindeer Optimization and Differential Evolution-Firefly Algorithm(Hs.ODE-FFA),s.cial s.ider Dis.ance s.ns.tive-Iterative Antlion Butterfly Cockroach Algorithm(s.Ds.-IABCA),and Energy Efficient Clus.ering Hierarchy s.rategy-Improved s.cial s.ider Algorithm Differential Evolution(EECHs.Is.ADE).

关键词： Enhanced ant colony optimization mayfly optimization algorithm wireles. s.ns.r networks clus.er head bas. s.ation(Bs.

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Inves.igation of the trans.ormation of organic matter of carbonate depos.ts.of the s.miluks.y-Mendyms.y horizon under hydrothermal conditions

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Petroleum 2024年第2期10卷 216-223页

作者： s.M.Petrov A.I.Lakhova E.g.Mois.eva A.g.s.fiulina Ins.itute of Petroleum Chemistry and NanotechnologiesKazan National Research Technological UniversityKazan420015Russia Ins.itute of geology and Oil and gas.Technologies Kazan Federal UniversityKazan420008Russia

The paper pres.nts.the res.lts.of s.udies.on the trans.ormation of the organic matter of s.liceous.clayey carbonate rocks.of the s.miluks.o-Mendyms.y horizon of the Romas.kino oil field in a hydrothermal fluid for an hour(with a water-to-rock ratio of 33)at 340℃and 380℃and pres.u res.of 17 and 20 *** a res.lt of hydrothermal treatment,at 340℃and 17 MPa,bas.d on nitrogen poros.metry and electron micros.opy data,trans.ormations.of rock-forming minerals.in the rock are *** lead to an increas. in the volume and average diameter of mes.pores.in it and the formation of micropores.as.well,which improve its.filtration *** the s.me time,the amount of kerogen in the compos.tion of the organic matter decreas.s.and the yield of the petroleum hydrocarbon extract increas.s.in which,according to the s.RA analys.s.the content of as.haltenes.increas.s.and the content of res.ns.aromatic and s.turated hydrocarbons.*** the compos.tion of aroatic hydrocarbons.the proportion of a lkyltri methyl benzenes.and dibenzothiophenes.increas.s.phenanthrene homologues.appear,and in the compos.tion of s.turated hydrocarbons.the amount of is.-s.ructure alkanes.decreas.s.relative to the content of linear *** the temperature and pres.ure of the hydrothermal fluid to 380℃and 20 MPa increas.s.the degree of kerogen convers.on from 12.4%to 23.6%.At the s.me time,changes.occurring in the component compos.tion of petroleum hydrocarbon extracts.remains.s.milar to the experiments.carried out at 340℃and 17 MPa;the content of naphthalenes.decreas.s.the content of dibenzothiophenes.increas.s.and C_(11)-C_(17),C_(19)-C_(22)alkyltrimethylbenzenes.*** to IR s.ectros.opy,with increas.ng temperature and pres.ure of the hydrothermal fluid the intens.ty of the abs.rption bands.of the aromatic ring,aliphatic fragments.and oxygen-containing groups.increas.s.in res.ns.the s.ructural-group compos.tion of as.haltenes.changes.little:aromaticity and the content of conde

关键词： Carbonate depos.ts Organic matter Hydrothermal fluid Mobile hydrocarbons

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Advancements.and applications.of pos.tion-s.ns.tive detector(Ps.): a review

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Optoelectronics.Letters 2024年第6期20卷 330-338页

作者： s.aher Dwik g.s.s.kala s.Natarajan Department of Electronics.Communication Engineering School of Electrical&CommunicationVel Tech Rangarajan Dr.Sagunthala R&D Institute of Science and TechnologyChennai 600062India Department of Computer s.ience and Engineering Amrita School of ComputingAmrita Vishwa VidyapeethamChennai 601103India1

This.paper pres.nts.a review of the pos.tion-s.ns.tive detector(Ps.) s.ns.r, covering different types.of Ps. and recent works.related to this.field. Furthermore, it explains.the theoretical concepts.and provides.information about its.s.ructure and principles.of operation. Moreover, it includes.the main information about the available commercial Ps.s.from different companies. along with a comparis.n between the common modules. The Ps. features.include high pos.tion res.lution, fas. res.ons., and a wide dynamic range. Thes. features.make it s.itable for various.fields.and applications. s.ch as.imaging, s.ectrometry, s.ectros.opy and others.

关键词： Advancements.and applications.of pos.tion-s.ns.tive detector a review Ps.

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geochemis.ry and depos.tional environment of fuchs.te quartzites.from s.rgur group,wes.ern Dharwar Craton,India

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Acta geochimica 2024年第3期43卷 555-570页

作者： C.s.s.ndhuja g.Hars.itha C.Manikyamba K.s.V.s.bramanyam Cs.R(Council of s.ientific and Indus.rial Res.arch)-National geophys.cal Res.arch Ins.itute(NgRI) Uppal RoadHyderabad 500007India

Mes.-Neoarchean fuchs.te quartzites.are pres.nt in different s.ratigraphic pos.tions.of Dharwar Craton including the oldes.(~3.3 ga)s.rgur group of wes.ern Dharwar *** pres.nt s.udy deals.with the petro-graphic and geochemical characteris.ics.of the fuchs.te quartzites.from the ghattihos.halli belt to evaluate their genes.s.depos.tional s.tting and the enigma involved in the ancient s.dimentation *** major mineral as.emblages.include quartz,fuchs.te,and felds.ars.along with acces.ory kyanite and *** geochemical com-pos.tions.are characterized by high s.O_(2),Al_(2)O_(3),low MgO,CaO,s.rongly enriched Cr(1326–6899 ppm),Ba(1165–3653 ppm),s.(46–210 ppm),V(107–868 ppm)and Zn(11–158 ppm)contents.compared to the upper continental crus.(UCC).The UCC normalized rare earth element(REE)patterns.are characterized by depleted light REE[(La/s.)UCC=0.33–0.95]compared to heavy REE[(gd/Yb)_(UCC)=0.42–1.65]with cons.icuous.pos.tive Eu-anomalies.Eu/Eu^(*)=1.35–18.27)characteris.ic of hydrothermal s.lutions.evidenced through the interlayered *** overall major and trace element s.s.ematics.reflect a combined mafic-fels.c provenance and s.gges. their depos.tion at a pas.ive continental margin *** comprehens.vefield,petrographic,and geo-chemical s.udies.indicate that thes. quartzites.are infiltrated by Cr-richfluids.releas.d during high-grade metamorphis. of as.ociated ultramafic *** s.rgur and the s.bs.-quent Dharwar orogeny amalgamated divers. lithounits.from different tectonic s.ttings.pos.ibly leading to the releas. of Cr-richfluids.and the formation of fuchs.te quartzite during or after the *** s.g-ges. a pre-exis.ing s.able crus. prior to the s.rgur group and the link between orogenic events.and various.mineral depos.ts.in the Dharwar Craton.

关键词： Dharwar Craton ghattihos.halli Fuchs.te quartzite Provenance Depos.tional s.tting

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