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Optimization of operational strategies for rich gas enhanced oil recovery based on a pilot test in the Bakken tight oil reservoir

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Petroleum Science 2023年第5期20卷 2921-2938页

作者： Xincheng Wan Lu Jin Nicholas A.Azzolina Jin Zhao Xue Yu Steven A.smith james A.Sorensen Energy&Environmental Research Center University of North Dakota15 North 23rd StreetStop 9018Grand ForksND58202-9018USA

Horizontal well drilling and multistage hydraulic fracturing have been demonstrated as effective approaches for stimulating oil production in the Bakken tight oil ***,after multiple years of production,primary oil recovery in the Bakken is generally less than 10%of the estimated original oil in *** huff‘n’puff(HnP)has been tested in the Bakken Formation as an enhanced oil recovery(EOR)method;however,most field pilot test results showed no significant incremental oil *** of the factors affecting HnP EOR performance is premature gas breakthrough,which is one of the most critical issues observed in the field because of the presence of interwell ***,injected gas rapidly reaches adjacent production wells without contacting reservoir rock and increasing oil *** conformance control is therefore needed to avoid early gas breakthrough and improve EOR *** this study,a rich gas EOR pilot in the Bakken was carefully analyzed to collect the essential reservoir and operational data.A simulation model with 16 wells was then developed to reproduce the production history and predict the EOR performance with and without conformance *** operational strategies,including single-and multiple-well HnP,with different gas injection constraints were *** simulation results of single-well HnP without conformance control showed that a rich gas injection rate of at least 10 MMscfd was needed to yield meaningful incremental oil *** strategy of conformance control via water injection could significantly improve oil production in the HnP well,but injecting an excessive amount of water also leads to water breakthrough and loss of oil production in the offset *** analyzing the production performance of the wells individually,the arrangement of wells was optimized for multiple-well HnP *** multiwell results showed that rich gas EOR could improve oil production up to 7.4%by employing confor

关键词： Rich gas injection Bakken tight oil reservoir EOR strategies Conformance control Embedded discrete fracture model

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以系统为导向的反转课堂教学在MBBS心脏诊断学教学中的运用评价

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中国继续医学教育 2015年第7期7卷 3-6页

作者：周娜林玥林秋果 james D.smith Loh Cheng David KNIGHT 张红珊陈江周晓鸿李炯明昆明医科大学第二附属医院心内科 650101 云南师范大学外国语学院昆明650500 俄勒冈健康与自然科学大学俄勒冈97229 昆明医科大学第二附属医院教学管理部 650101 昆明医科大学第二附属医院心功能科 650101 昆明医科大学第二附属医院教学部 650101 昆明医科大学第二附属医院院务部 650101

目的评价以系统为导向的反转课堂教学在MBBS心脏诊断学教学中的运用效果。方法对昆明医科大学2014年9月进入诊断学学习阶段的80名东南亚医学留学生采用"以系统为导向"的"反转课堂"教学方法教授心脏诊断学部分。结果 73.80%的学生认为采... 详细信息

目的评价以系统为导向的反转课堂教学在MBBS心脏诊断学教学中的运用效果。方法对昆明医科大学2014年9月进入诊断学学习阶段的80名东南亚医学留学生采用"以系统为导向"的"反转课堂"教学方法教授心脏诊断学部分。结果 73.80%的学生认为采用的一个病例串联与临床工作很吻合,23.81%的学生认为比较吻合;91.67%的学生认为授课过程中师资有引导学生讨论,其中69.05%认为非常有用;95.24%的学生认为教师的讲课有使用多元化教学方式,其中78.57%认为很有效;96.43%的学生认为教师有进行小结和总结,其中67.86%认为很有效;86.90%的学生认为所讲内容没有超负荷;95.24%的学生认为师资有寻求学生反馈;96.43%的学生认为教学课件设计清晰;96.43%的学生认为教师对课题内容掌握透彻;97.62%的学生认为教师有充分时间给学生提问答疑。结论以系统为导向的反转课堂教学方法能很好地发挥学生的积极主动性,更好地从纵向扩充MBBS留学生对心脏诊断学部分的学习,并且是有效的和容易被接受的。该教学方法更符合外国留学生的医学教学,更好地优化了教学时间和教学资源,从而提高了医学教学质量和学生对知识的运用能力。

关键词： MBBS留学生心脏诊断学反转课堂以系统为导向的教学协作教学

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末次冰盛期期间西南极洲东南太平洋边缘冰盖的延伸和动力学及其后来的冰退历史

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海洋地质 2009年第1期25卷 66-67页

作者： Robert Larter Claus - Dieter Hillenbrand james smith Alastair Graham Tara Deen Julian Dowdeswell Jeff Evans Karsten Gohl Gerhard Kuhn Colm O＇ Cofaigh 蔡观强（译）吴峧岐（校）英国南极调查局英国斯科特极地研究所英国拉夫堡大学英国魏格纳极地和海洋研究所德国达拉谟大学英国敦提大学英国不详

海洋地球科学资料表明末次冰盛期时期（LGM）底土冰沿着2500km长、从南极半岛北部到Amundsen海的大陆边缘的大部分（但不是全部）一直延伸到了大陆架边缘。横陆架海槽外部的水深测量资料显示了过去的结冰程度，这些资料也揭示了冰川下... 详细信息

海洋地球科学资料表明末次冰盛期时期（LGM）底土冰沿着2500km长、从南极半岛北部到Amundsen海的大陆边缘的大部分（但不是全部）一直延伸到了大陆架边缘。横陆架海槽外部的水深测量资料显示了过去的结冰程度，这些资料也揭示了冰川下床体的拉长残余。这些都表明海槽是快速流动冰块的通道。冰后期冰山的深入刨蚀作用，将堤岸冰山流动的地貌证据消除。然而，堤岸之间的地震剖面资料显示存在普遍的陆架外缘冰山运移和大量的冰块不整合现象，

关键词：末次冰盛期东南太平洋冰盖动力学南极洲历史陆架边缘快速流动

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Resolving display shape dependence issues on tabletops

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Computational Visual Media 2018年第4期4卷 349-365页

作者： james McNaughton Tom Crick Shamus smith School of Education Durham University Department of Computer Science Swansea University School of Electrical Engineering & Computing Universityof Newcastle(Australia)

Advances in display technologies are transforming the capabilities—and potential applications—of system interfaces. Previously, the overwhelming majority of systems have utilised rectangular displays;this may soon change with digital devices increasingly designed to be ubiquitous and pervasive, to facilitate frictionless human interaction. At present, software is invariably designed assuming it will be used with a display of a specific shape; however, there is an emerging demand for systems built around interacting with tabletop interfaces to be capable of handling a wide range of potential display shapes. In this paper,the design of software for use on a range of differently shaped tabletop displays is considered, proposing a novel but extensible technique that can be used to minimise the influence of the issues of using different display shapes. Furthermore, we present a study that applies the technique to adapt several software applications to several different display shapes.

关键词： visual content management irregular displays screen design multi-touch surfaces tabletop displays ubiquitous computing

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A Scalable Testing Framework for Location-Based Services

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Journal of Computer Science & Technology 2009年第2期24卷 386-404页

作者： Jiang Yu Andrew Tappenden james Miller Michael smith University of Alberta Edmonton T6G 2E1 Canada University of Calgary Calgary T2N 1N4 Canada

A novel testing framework for location based services is introduced. In particular, the paper showcases a novel architecture for such a framework. The implementation of the framework illustrates both the functionality and the feasibility of the framework proposed and the utility of the architecture. The new framework is evaluated through comparison to several other methodologies currently available for the testing of location-based applications. A case study is presented in which the testing framework was applied to a typical mobile service tracking system. It is concluded that the proposed testing framework achieves the best coverage of the entire location based service testing problem of the currently available methodologies; being equipped to test the widest array of application attributes and allowing for the automation of testing activities.

关键词： location based applications location-based services M-commerce software testing

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Accelerating materials discovery using artificial intelligence, high performance computing and robotics

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npj Computational Materials 2022年第1期8卷 767-775页

作者： Edward O.Pyzer-Knapp Jed W.Pitera Peter W.J.Staar Seiji Takeda Teodoro Laino Daniel P.Sanders james Sexton John R.smith Alessandro Curioni IBM Research Europe-Daresbury DaresburyUK IBM Almaden Research Centre San JoseCAUSA IBM Research Europe Zurich RüschlikonSwitzerland IBM Research Tokyo TokyoJapan IBM Thomas J.Watson Research Centre Yorktown HeightsNYUSA

New tools enable new ways of working,and materials science is no *** materials discovery,traditional manual,serial,and human-intensive work is being augmented by automated,parallel,and iterative processes driven by Artificial Intelligence (AI),simulation and experimental *** this perspective,we describe how these new capabilities enable the acceleration and enrichment of each stage of the discovery *** show,using the example of the development of a novel chemically amplified photoresist,how these technologies’ impacts are amplified when they are used in concert with each other as powerful,heterogeneous workflows.

关键词： artificial computing enable

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Exceptional points and the ring laser gyroscope

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Photonics Research 2020年第3期8卷 252-256页

作者： LUKE HORSTMAN NING HSU james HENDRIE DAVID smith JEAN-CLAUDE DIELS School of Optical Science and Engineering University of New MexicoAlbuquerqueNew Mexico 87106USA Center for High Technology Materials University of New MexicoAlbuquerqueNew Mexico 87106USA NASA Marshall Space Flight Center Space Systems DepartmentHuntsvilleAlabama 35812USA Department of Physics and Astronomy University of New MexicoAlbuquerqueNew Mexico 87131USA

An equivalence is made between the exceptional points proposed by the field of non-Hermitian quantum mechanics and the dead band observed in laser *** sensitivity enhancement near this exceptional point is plagued by increased uncertainty due to broadening of the beat-note ***,near the dead band the gyroscope response is caused by Rabi intensity oscillations and not solely by a phase ***,a distinction is made between conservative and non-conservative coupling.

关键词： laser exceptional conservative

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Impact of direct and indirect heating systems in broiler units on environmental conditions and flock performance

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Journal of Integrative Agriculture 2016年第11期15卷 2588-2595页

作者： Shaun smith Joseph Meade james Gibbons Kevina Mc Gill Declan Bolton Paul Whyte UCD School of Veterinary Medicine University College Dublin Belfield Dublin 4 Ireland Teagasc Ashtown Food Research Centre Ashtown Dublin 15 Ireland

This study compared the impact of three indirect heating systems to direct gas flame heaters on a selection of flock performance and environmental indicators in commercial broiler units. No statistically significant differences（P≥0.05） were found in flock mortality rates, bird weight, water consumption, stress response, carbon dioxide, ammonia, temperature, relative humidity, litter quality, within-flock Campylobacter levels or mean Campylobacter counts when flock data from any of the three indirect heating systems were compared to flocks reared in houses with direct heating systems. Differences in litter quality were observed between upper and lower litter layers in all houses, regardless of heating type, which may have implications for bird health and welfare. Carbon dioxide concentrations in houses with direct heating systems were significantly higher than those in houses with indirect heating systems during the first 10 days of bird life（P≤0.05）. This was due to the increased use of heating systems during this period of the flock cycle. Differences in CO2 concentrations had no effect on flock performance, possibly due to the fact that concentrations did not exceed known safe levels. A statistically significant increase in stress response was observed in birds as a result of partial depopulation（thinning） within houses, irrespective of heating system type used（P≤0.05）. Stress associated with thinning may have consequences for bird welfare and food safety. In conclusion, the results of our study suggest that indirect heating systems do not appear to negatively impact on flock performance, stress response, within-flock Campylobacter levels or mean Campylobacter counts and do not appear to significantly alter environmental conditions within broiler houses when compared to houses equipped with direct heating systems. Indirect systems are a viable alternative for heating broiler houses in terms of flock performance, bird welfare and food safety.

关键词： litter quality welfare stress poultry production campylobacter environmental conditions

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Distal triceps injuries(including snapping triceps):A systematic review of the literature

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世界骨科杂志：英文版 2017年第6期8卷 507-513页

作者： Kimberley Shuttlewood james Beazley Christopher D smith Royal Devon and Exeter Hospital

AIM To review current literature on types of distal triceps injuryand determine diagnosis and appropriate *** We performed a systematic review in PubM ed, Cochrane and EMBASE using the terms distal triceps tears and snapping triceps on the 10 th January 2017. We excluded all animal, review, foreign language and repeat papers. We reviewed all papers for relevance and of the papers left we were able to establish the types of distal triceps injury, how these injuries are diagnosed and investigated and the types of management of these injuries including surgical. The results are then presented in a review paper *** Three hundred and seventy-nine papers were identified of which 65 were relevant to distal triceps injuries. After exclusion we had 47 appropriate papers. The papers highlighted 2 main distal triceps injuries: Distal triceps tears and snapping triceps. Triceps tear are more common in males than females occurring in the 4th-5th decade of life and often due to a direct trauma but are also strongly associated with weightlifting and American football. The tears are diagnosed by history and clinically with a palpable gap. Diagnosis can be confirmed with the use of ultrasound(US) and magnetic resonance imaging. Treatment depends on type of tear. Partial tears can be treated conservatively with bracing and physio whereas acute tears need repair either open or arthroscopic using suture anchor or bone tunnel techniques with similar success. Chronic tears often need augmenting with tendon allograft or autograft. Snapping triceps are also seen more in men than women but at a mean age of 32 years. They are characterized by a snapping sensation mostly medially and can be associated with ulna nerve subluxation and ulna nerve symptoms. US is the diagnostic modality of choice due to its dynamic nature and to differentiate between snapping triceps tendon or ulna nerve. Treatment is conservative initially with activity avoidance and if that fails surgi

关键词： Triceps Distal Tear Rupture Snapping Partial thickness Biomechanical Anatomy

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成熟期和拟茎点种腐病菌Phomopsis longicolla对大豆近等位基因系种子萌发及活力的影响

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大豆科技 2014年第5期 39-39页

作者： Anne M.Gillen james R.smith Alemu Mengistu Nacer Bellaloui 宋洁

在美国中南部，由于大豆成熟期从8月中旬到9月改变到10月至11月，使得大豆[Glycine max（L．）merr.]种子品质有所下降，这种现象在过去是常见的。这表明种子的品质下降与种子成熟期间温度升高、拟茎点种腐病（PSD）发病程度增加及本身... 详细信息

在美国中南部，由于大豆成熟期从8月中旬到9月改变到10月至11月，使得大豆[Glycine max（L．）merr.]种子品质有所下降，这种现象在过去是常见的。这表明种子的品质下降与种子成熟期间温度升高、拟茎点种腐病（PSD）发病程度增加及本身潜在的成熟期有关。该研究针对2组近等基因系（’Clark’and’Haro-soy’）进行大豆田间试验，探讨成熟期和引起种腐病的大豆拟茎点霉菌Phomopsis longicolla Hobbs对种子质量的影响，每组近等基因系中每一品系的成熟期是多样的。

关键词：成熟期间种子萌发茎点霉菌近等位基因系大豆近等基因系病菌点种

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