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Importance of conformance control in reinforcing synergy of CO_(2) EOR and sequestration

Petroleum Science 2022年第6期19卷 3088-3106页

作者： Yang Zhao Zhen-Hua Rui Zheng Zhang Si-Wei Chen Ren-Feng Yang Kai Du Birol Dindoruk Tao Yang Erling H.Stenby malcolm a.wilson State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum(Beijing)Beijing 102249China College of Petroleum Engineering China University of Petroleum(Beijing)Beijing 102249China College of Carbon Neutrality Future Technology China University of Petroleum(Beijing)Beijing 102249China College of Petroleum China University of Petroleum(Beijing)at KaramayKaramayXinjiang 83400China CNOOC Research Institute Co. Ltd.Beijing 100029China University of Houston USA Equinor Ovre StokkaveiStavangerNorway Technical University of Denmark Denmark University of Regina Canada

Injecting CO2into hydrocarbon reservoirs can enhance the recovery of hydrocarbon resources,and simultaneously,CO2can be stored in the rese rvoirs,reducing considerable amount of carbon emissions in the ***,injected CO_(2)tends to go through fractures,high-permeability channels and streaks present in reservoirs,resulting in inefficient hydrocarbon recovery coupled with low CO_(2)storage *** treatments with CO_(2)-resistant crosslinked polymer gels were performed in this study to mitigate the CO_(2)channeling issue and promote the synergy between enhanced oil recovery(EOR) and subsurface sequestration of CO_(2).Based on a typical low-permeability CO_(2)-flooding reservoir in China,studies were performed to investigate the EOR and CO_(2)storage performance with and without conformance *** effect of permeability contrast between the channels and rese rvoir matrices,treatment size,and plugging strength on the efficiency of oil recovery and CO_(2)storage was systematically *** results indicated that after conformance treatments,the CO_(2)channeling problem was mitigated during CO_(2)flooding and *** injected CO_(2)was more effectively utilized to recover the hydrocarbons,and entered wider spectrum of pore ***,more CO_(2)was trapped *** factors on the synergy of EOR and CO_(2)storage were figured *** with the treatment size,the CO_(2)storage efficiency was more sensitive to the plugging strength of the conformance treatment *** observation was important for conformance treatment design in CCUS-EOR *** to this study,the materials should reduce the channel permeability to make the channel/matrix permeability ratio below *** results demonstrate the importance of conformance treatment in maximizing the performance of CCUS-EOR process to achieve both oil recovery improvement and efficient carbon *** study provides guidelines for suc

关键词： Enhanced oil recovery(EOR) CO_(2)geological sequestration Conformance control Gel treatment CCUS Low-permeability reservoir

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CO_(2)-capture research and Clean Energy Technologies Research Institute(CETRI)of University of Regina,Canada:history,current status and future development

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Clean Energy 2022年第1期6卷 119-126页

作者： Paitoon(PT)Tontiwachwuthikul malcolm wilson Raphael Idem Clean Energy Technologies Research Institute University of ReginaReginaSaskatchewanCanada

Clean Energy Technologies Research Institute(CETRI)was formerly known as the International Test Centre for CO_(2)Capture in the early *** original focus of the centre was to help lower the carbon intensity of the current energy sources to low-carbon ones in ***,CETRI’s mandates have expanded and now include most of the low-carbon and near-carbon-free clean-energy research *** of research focus include carbon(CO_(2))capture,utilization and storage(CCUS),near-zero-emission hydrogen(H_(2))technologies,and waste-to-renewable fuels and *** also brings together one of the most dynamic teams of researchers,industry leaders,innovators and educators in the clean and low-carbon energy fields.

关键词： Canada Clean carbon

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The history and development of the IEA GHG Weyburn-Midale CO_(2) Monitoring and Storage Project in Saskatchewan, Canada (the world largest CO_(2) for EOR and CCS program)

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Petroleum 2017年第1期3卷 3-9页

作者： Ken Brown Steve Whittaker malcolm wilson Wayuta Srisang Heidi Smithson Paitoon Tontiwachwuthikul Clean Energy Technologies Research Institute(CETRI) University of Regina3737 Wascana ParkwayReginaSK S4S 0A2Canada

*** The Weyburn oil field occurs within a larger trend of similar oil accumulations in Mississippian-aged *** history of discovery of these oil accumulations resulted in the fields being given several different *** Weyburn field and the immediately-adjacent Midale field are effectively part of a larger oil pool with OOIP(original oil in place)reserves of over 2 billion *** is certainly a large conventional oil pool for Canada even if not large by world *** pools are found in truncated stratigraphic traps and occur at about 1450e1550 m depth making them ideal for CO_(2) storage[1].

关键词： Canada Storage CCS

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Limits of drag augmentation at spacecraft end-of-mission and a mitigation strategy

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Astrodynamics 2021年第2期5卷 109-120页

作者： Emma Kerr malcolm Macdonald University of Strathclyde GlasgowG11XJUK

An increasing number of objects are being launched into low-Earth ***,to avoid the possibility of future in-orbit collisions space object removal techniques are receiving *** one of the most developed techniques,drag augmentation is increasingly being considered as an option for end-of-mission removal of objects from low-Earth *** paper highlights a common misconception around drag augmentation:although it can be used to reduce de-orbit time,when used inappropriately it can increase the volume swept by an object and,thus,increase the occurrence risk of collision with another space *** ignoring this increased risk of collisions could leave spacecraft operators,and consequently their responsible state party,open to liability *** investigating the volume swept and de-orbit lifetime,a strategy of delayed deployment is proposed as a compromise between reducing volume swept and time to ***,this increases system complexity and,likely,cost.

关键词： drag augmentation volume area-time-product space debris liability Learned Hand formula calculus of negligence

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ZnO nanofluids-A potential antibacterial agent

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Progress in Natural Science:Materials International 2008年第8期18卷 939-944页

作者： malcolm Povey David York Procter Department of Food Science University of Leeds Leeds LS2 9JT UK Procter and Gamble Newcastle Technical Centre Newcastle-upon-Tyne NE12 9TS UK

In this work, ZnO nanofluids were produced by a medium mill with a pH value of about 7.2 and characterized by Nano-Sizer and SEM. After milling, ZnO nanofluids were formed with an average particle size of 198.4 nm. The ZnO nanofluids used for testing were stored for different periods (1-, 90- and 120-day) and kept in different conditions (under the light and in the dark). The antibacterial activities of these ZnO nanofluids were evaluated by estimating the reduction ratio of the bacteria treated with ZnO. The results showed that the ZnO nanofluid stored for 120 days under the light had the best antibacterial behavior against Escherichia coli DH5a. SEM images suggest that an interaction between the ZnO particles and the E. coli bacteria cells caused by electrostatic forces might be a mechanism.

关键词： Antibacterial Nanofluids ZnO E. coli Photocatalysis

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The origin of genetic risk for nasopharyngeal carcinoma:a commentary on Is nasopharyngeal cancer really a “Cantonese cancer”?

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Chinese Journal of Cancer 2010年第5期29卷 527-537页

作者： malcolm J. Simons Simons Haplomics Limited

Nasopharyngeal Carcinoma (NPC) occurs with highest incidence in Southeastern China among Cantonese-speaking Chinese, giving rise to the common name of 'Cantonese cancer'. Chinese in the province of Guangdong have the

关键词：鼻咽癌广东省评论危险遗传中国东南中部地区风险

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Historical imaginaries, historic urban branding, and the local state in China: rejuvenation discourse, manufactured heritage and simulacrascapes

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Built Heritage 2023年第1期7卷 76-87页

作者： Andrew malcolm Law School of Architecture Planning and LandscapeNewcastle UniversityNewcastleUK

This intervention examines the extant literature on historical imaginaries and historic urban branding in *** suggests that while research in this field has increasingly moved away from an economic(or an implicit neo-Marxist)model,there is still a lack of research on the role of broader cultural and state led discourses of nationalism in the construction of historic urban imaginaries and historic urban branding within Chinese *** unpacking one nationalistic discourse a-narrative of rejuvenation-this article argues that more needs to be done to examine the role of these themes in the construction of historical imaginaries at the level of the local state(including related state networks of developers,retailers,tourist officials,town planners,architects,and designers).It is suggested that an analysis of these discourses and imaginaries is important if we are:1)to appreciate the role of these themes in the construction and/or the reconfiguration of existing or emerging historic brands within Chinese cities;2)to comprehend the construction of'authorised heritage discourses,(AHDs)practices and materialities at the level of the local state;3)to understand the politics of the past(including the uses of history,memory,nostalgia,and heritage)at the level of the local state;4)to be aware of the way in which these themes inform the preservation,conservation,and/or the demolition of heritage space at the level of the local state;5)to recognise the manufacture of'heritage'or simulacrascapes within Chinese cities.

关键词： rejuvenation historical urban imaginaries historical urban branding built heritage simulacrascapes

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Evolution of Microalloyed Linepipe Steels With Particular Emphasis on the “Near Stoichiometry” Low Carbon,0.10 Percent Niobium “HTP” Concept

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Journal of Iron and Steel Research International 2011年第S1期18卷 652-657页

作者： Gray J.malcolm Microalloyed Steel Institute Inc. 5100 Westheimer Ste 540HoustonTX 77056 USA

Microalloyed linepipe steels were first introduced in 1959 at strength levels around 52-60 ksi [1] [2].The steels were generally strengthened by niobium or vanadium used *** strengths levels increased to X-70 in the early 1970’s niobium and vanadium were used in combination and controlled rolling was introduced on a broad *** strengths decrease tolerance for impurities and non-metallic inclusions which required improved steelmaking ***,carbon,and nitrogen were reduced and continuous casting was increasingly applied which required improved ladle refining and deoxidation ***-molybdenum steels were introduced by IPSCO in 1972 [3] and by Italsider in 1974 [4].Steels with higher niobium contents were also introduced in the early 1970’s but available steelmaking technologies limited the use of optimum niobium to carbon ratios,*** approaching *** the steels benefited from the effect of niobium in retarding austenite recrystallization at relatively high rolling temperatures and they developed attractive combinations of strength and toughness in old manufacturing facilities using simple (relaxed) rolling *** in the price of molybdenum and vanadium in the past decade and expanded application of API Grade X-80 linepipe,have led to more widespread use of niobium contents up to 0.11 percent,in combination with 0.02-0.03 percent carbon (near stoichiometry) thus maximizing the effects of solute niobium during rolling,in lowering transformation temperature,and thereby reducing reliance on other alloying,often expensive,*** history of these developments will be presented and applications of the concept will be summarized.

关键词： HTP Low Carbon,0.10 Percent Niobium Near Stoichiometry Evolution of Microalloyed Linepipe Steels With Particular Emphasis on the Concept

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Nasopharyngeal carcinoma as a paradigm of cancer genetics

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Chinese Journal of Cancer 2011年第2期30卷 79-84页

作者： malcolm J. Simons Department of Experimental Research Sun Yat-sen University Cancer Center Simons Haplomics Limited

The unusual incidence patterns for nasopharyngeal carcinoma(NPC) in China,Northeast India,Arctic Inuit,Peninsular and island Southeast Asia,Polynesian Islanders,and North Africans indicate a role for NPC risk genes in Chinese,Chinese-related,and not-obviously Chinese-related *** interest in NPC genetic risk has been stimulated by a hypothesis that NPC population patterns originated in Bai-Yue /pre-Austronesian-speaking aborigines and were dispersed during the last glacial maximum by Sundaland *** articles in this issue of the Chinese Journal of Cancer,first presented at a meeting on genetic aspects of NPC [National Cancer Center of Singapore(NCCS),February 20-21,2010],are directed towards incidence patterns,to early detection of affected individuals within risk populations,and to the application of genetic technology advances to understanding the nature of high *** presents a general framework for understanding population migrations that underlie NPC and similar complex diseases,including other viral *** et *** genetic markers to detail migration from East Asia through Taiwan to the populating of Island *** dispersal in a westward direction took mongoloid peoples to modern day Northeast India adjacent to Western China(Xinjiang).NPC incidence in mongoloid Nagas ranks amongst the highest in the world,whereas elsewhere in India NPC is *** et *** incidence patterns in Southeast China that have occurred over recent ***,Ji et *** the utility of Epstein-Barr virus serostatus in early NPC *** genetic risk factors still remain largely unknown,human leukocyte antigen(HLA) genes have been a focus of attention since the discovery of an HLA association with NPC in 1973 and,two years later,that NPC susceptibility in highest-risk Cantonese involved the co-occurrence of multi-HLA locus combinations of HLA genes as chromosome combinations,or haplotypes(***-A2-B46

关键词：鼻咽癌遗传学癌症人类白细胞抗原全国人民代表大会遗传亲缘关系风险监测中国西部

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Review on solar sail technology

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Astrodynamics 2019年第2期3卷 93-125页

作者： Shengping Gong malcolm Macdonald School of Aerospace Engineering Tsinghua UniversityBeijing100084China Department of Mechanical&Aerospace Engineering University of StrathclydeGlasgouScotland

This paper reviews solar sail trajectory design and dynamics,attitude control,and structural *** the area of orbital dynamics,methods relevant to transfer trajectory design and non-Keplerian orbit generation are *** the area of attitude control,di erent control strategies,including utilisation of solar radiation pressure and conventional actuators,are ***,the methods of modelling structural dynamics during and after deployment are discussed,before considering possible future trends in developing of solar sailing missions.

关键词： solar sail orbit attitude structure

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