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储层微观非均质性的分形特征研究

天然气工业 2002年第1期22卷 37-40页

作者：李云省邓鸿斌吕国祥电子科技大学西南油气田分公司勘探研究院西南石油学院

储层微观孔隙结构是影响储层储渗特性的重要因素。很多研究表明 ,储层微观孔隙结构具有分形特征。但是 ,由于储层微观孔隙结构不易用肉眼去分辨 ,所以使得储层微观非均质性研究一直难以深入进行下去。文章将PIA技术与分形理论相结合 ,... 详细信息

储层微观孔隙结构是影响储层储渗特性的重要因素。很多研究表明 ,储层微观孔隙结构具有分形特征。但是 ,由于储层微观孔隙结构不易用肉眼去分辨 ,所以使得储层微观非均质性研究一直难以深入进行下去。文章将PIA技术与分形理论相结合 ,在“计盒法”的基础上推导出了一种新的分形分析方法。该方法简单易行 ,且不受人为因素影响。利用该方法 ,对某油田三口井共 16个砂岩薄片和 2个碳酸岩盐薄片进行了分析 ,结果发现该方法较传统非均质性分析方法更能准确地表征储层微观孔隙结构的非均质程度。

关键词：石油地质储集层微观结构非均质岩石孔隙分形学图像分析特征

川东北飞仙关组高含硫气藏气井压力计算方法及MdT测试分析

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天然气工业 2003年第6期23卷 114-116页

作者：陈京元曾令卓周静郑伟易澜中国石油西南油气田分公司勘探开发研究院中国石油西南油气田分公司川东北气矿

川东北飞仙关组高含硫气藏气井在完井测试过程中 ,压力测点位置与产层中部的距离较大 ,需将压力数据用气柱压力计算公式折算后再进行试井分析解释。文章以质量、动量和能量三大守恒方程和状态方程为基础 ,考虑了流动气柱的动能损失以及... 详细信息

川东北飞仙关组高含硫气藏气井在完井测试过程中 ,压力测点位置与产层中部的距离较大 ,需将压力数据用气柱压力计算公式折算后再进行试井分析解释。文章以质量、动量和能量三大守恒方程和状态方程为基础 ,考虑了流动气柱的动能损失以及井筒和地层中复杂的传热机理 ,推导出计算单相气流在井筒不同部位压力和温度的方法。以坡 2井为例 ,应用目前最新的模块化动态地层测试器MdT地层测试技术 ,对折算的压力进行了验证和对比分析。结果表明 ,应用文中的压力计算方法 ,完全可以满足解释的压力数据精度。另外 ,在没有进行完井测试前利用MdT测压资料确定地层压力等储层参数是较为直接和可靠的方法。

关键词：完井测试高含硫气藏气井压力计算方法 MdT 川东北飞仙关组

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煤层气井产能预测研究

天然气工业 2004年第8期24卷 82-84页

作者：吴晓东王国强李安启王欣石油大学中国石油勘探开发研究院廊坊分院

文章采用数值模拟方法 ,从煤层甲烷的流动机理入手 ,利用朗格缪尔等温吸附方程描述甲烷从煤表面解吸过程 ,利用Fick定律描述甲烷从煤基质和微孔隙中的扩散 ,综合考虑了煤层甲烷的解吸附、扩散、渗流三个过程 ,并考虑了水力压裂产生高渗... 详细信息

文章采用数值模拟方法 ,从煤层甲烷的流动机理入手 ,利用朗格缪尔等温吸附方程描述甲烷从煤表面解吸过程 ,利用Fick定律描述甲烷从煤基质和微孔隙中的扩散 ,综合考虑了煤层甲烷的解吸附、扩散、渗流三个过程 ,并考虑了水力压裂产生高渗透裂缝对渗流场的影响 ,在煤层理想化等七个假设条件下 ,建立了煤层甲烷的非平衡拟稳态吸附扩散模型 ,利用该模型编制了煤层气井产能预测软件 ,并进行了模拟计算 ,给出了计算实例。结果表明 :煤层在没有经过水力压裂处理时 ,煤层的气、水产量是很小的 ;经过水力压裂处理后 ,由于煤层的排水降压效果 ,煤层气井气、水产量有明显的增加 ,具有经济开采的产量规模。

关键词：煤层气产量预测方法数值模拟技术储集层甲烷

大斜度井和水平井地层评价中的经验、问题和发展方向

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测井技术 2006年第1期30卷 1-9页

作者： Quinn R Passey H Yin C M Rendeiro d E Fitz 唐宇王昌学 ExxonMobil上游研究公司 ExxonMobil勘探公司中国石油集团测井有限公司技术中心陕西西安710075 中国石油勘探开发研究院北京100083

大斜度井和水平井（HA／HZ）测井组合的选择原则主要是指导地质导向钻井。有时（HA／HZ）井所穿过的地层或油藏某部分没有垂直评价井，只能用HA／HZ测井数据评价常规有效厚度／总厚度比、孔隙度和含水饱和度。对同一地层，HA／HZ测井响... 详细信息

大斜度井和水平井（HA／HZ）测井组合的选择原则主要是指导地质导向钻井。有时（HA／HZ）井所穿过的地层或油藏某部分没有垂直评价井，只能用HA／HZ测井数据评价常规有效厚度／总厚度比、孔隙度和含水饱和度。对同一地层，HA／HZ测井响应与垂直井响应存在很大差异。研究表明，由于视倾角误差，孔隙度值偏差可达6P．u．，含水饱和度误差超过50％，大斜度井中真地层厚度偏差达到200％～300％。垂直井的常规地层评价方法不太适用于HA／HZ井地层和流体性质评价。HA／HZ井与垂直井测井响应差异的主要原因是很多测井仪器是专为探测垂直井地层而设计的，因此在HA／HZ井中，必须对解释方案进行修改，这时需考虑井眼附近地层的几何形状；测量方位；地层各向异性对电阻率、声波和核测井响应的影响；异常侵入剖面；重力引起的仪器偏心以及井眼底部聚积的岩屑。虽然井眼成像测井能有效地测量大斜度井相对地层倾角，但当井斜超过80°时地层倾角的测量仍存在很多问题。中子和密度测井响应又相当程度地受岩屑的影响。这种井的测井难度很大，将差质量测井响应与因几何形状、各向异性以及井眼影响引起的异常测井响应区分开来显得相当重要。HA／HZ井用于地质导向的定性标准测井难以满足未来地层评价的要求。许多地方不能钻垂直评价井，因此利用大位移井信息评价地层很关键。作业公司和测井服务公司必须相互协作，共同解决HA／HZ井仪器响应和数据解释问题，开发出能定量描述HA／HZ井的新仪器。

关键词：大斜度井水平井地层评价测井专题会议发展方向

Phased,chromosome-scale genome assemblies of tetraploid potato reveal a complex genome,transcriptome,and predicted proteome landscape underpinning genetic diversity

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Molecular Plant 2022年第3期15卷 520-536页

作者： Genevieve Hoopes Xiaoxi Meng John P.Hamilton Sai Reddy Achakkagari Fernanda de Alves Freitas Guesdes Marie E.Bolger Joseph J.Coombs danny Esselink Natalie R.Kaiser Linda Kodde Maria Kyriakidou Brian Lavrijssen Natascha van Lieshout Rachel Shereda Heather K.Tuttle Brieanne Vaillancourt Joshua C.Wood Jan Mde Boer Nolan Bornowski Peter Bourke david douches Herman Jvan Eck dave Ellis Max J.Feldman Kyle M.Gardner Johannes C.P.Hopman Jiming Jiang Walter S.de Jong Joseph C.Kuhl Richard G.Novy Stan Oome Vidyasagar Sathuvalli Ek Han Tan Remco A.Ursum M.Isabel Vales Kelly Vining Richard G.F.Visser Jack Vossen G.Craig Yencho Noelle L.Anglin Christian W.B.Bachem jeffrey B.Endelman Laura M.Shannon Martina V.Stromvik Helen H.Tai Bjorn Usadel C.Robin Buell Richard Finkers department of Plant Biology Michigan State UniversityEast LansingMI 48824USA department of Horticultural Science University of MinnesotaSt.PaulMN 55108USA department of Plant Science McGill UniversitySainte-Anne-de-BellevueQC H9X 3V9Canada Plant Breeding Wageningen University&ResearchPlant Breeding6708 PB Wageningenthe Netherlands IBG-4 Bioinformatics Forschungszentrum JülichWilhelm Johnen Str52428 JülichGermany department of Plant Soiland Microbial SciencesMichigan State UniversityEast LansingMI 48824USA Bayer Crop Science WoodlandCA 95695USA Averis Seeds B.V. 9640 AA Veendamthe Netherlands International Potato Center 1895 Avenida La MolinaLimaPeru USdA-ARS ProsserWA 99350USA Agriculture and Agri-Food Canada Fredericton Research and development Centre FrederictonNB E3B 4Z7Canada School of Integrative Plant Science Cornell UniversityIthacaNY 14853-1901USA department of Plant Sciences University of IdahoMoscowID 83844USA USdA-ARS Small Grains and Potato Germplasm ResearchAberdeenID 83210USA HZPC Research B.V. Edisonweg 58501 XG Jourethe Netherlands department of Crop and Soil Science Oregon State UniversityHermistonOR 97838USA School of Biology and Ecology University of Maine5735 Hitchner Hall OronoME 04469USA department of Horticultural Sciences Texas A&M UniversityCollege StationTX 77843-2133USA department of Horticulture Oregon State UniversityCorvallisOR 97331USA department of Horticultural Science North Carolina State UniversityRaleighNC 27695-7609USA department of Horticulture University of Wisconsin-MadisonMadisonWI 53706USA department of Horticulture Michigan State UniversityEast LansingMI 48824USA Institute for Biological data Science Heinrich Heine UniversityDusseldorf40225 DusseldorfGermany Plant Resilience Institute Michigan State UniversityEast LansingMI 48824USA Present address:GenNovation B.V. Wageningenthe Netherlands

Cultivated potato is a clonally propagated autotetraploid species with a highly heterogeneous *** assemblies of six cultivars including two chromosome-scale phased genome assemblies revealed extensive allelic diversity,including altered coding and transcript sequences,preferential allele expression,and structural variation that collectively result in a highly complex transcriptome and predicted proteome,which are distributed across the homologous *** species contribute to the extensive allelic diversity in tetraploid cultivars,demonstrating ancestral introgressions predating modern breeding *** a clonally propagated autotetraploid that undergoes limited meiosis,dysfunctional and deleterious alleles are not purged in tetraploid *** a quarter of the loci bore mutations are predicted to have a high negative impact on protein function,complicating breeder’s efforts to reduce genetic *** StCdF1 locus controls maturity,and analysis of six tetraploid genomes revealed that 12 allelic variants of StCdF1 are correlated with maturity in a dosage-dependent *** of the complexity of the tetraploid potato genome with its rampant structural variation and embedded deleterious and dysfunctional alleles will be key not only to implementing precision breeding of tetraploid cultivars but also to the construction of homozygous,diploid potato germplasm containing favorable alleles to capitalize on heterosis in F1 hybrids.

关键词： potato allele diversity phased assembly polyploid pan-genome wild introgressions

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新型小型压裂摩阻测试方法的应用

新疆石油地质 2011年第6期32卷 672-674页

作者：王达刘刚芝冯浦涌林涛中海油田服务股份有限公司生产事业部技术部天津300450

在某油田两口气井进行的压前小型压裂测试中,由于测得近井摩阻较高,采取了补孔的方式降低摩阻。虽然压裂作业取得了成功,但是作业成本明显升高。压后分析认为,近井摩阻过高的原因可能是由于测试压裂注入液量较小,无法有效驱替近井地带... 详细信息

在某油田两口气井进行的压前小型压裂测试中,由于测得近井摩阻较高,采取了补孔的方式降低摩阻。虽然压裂作业取得了成功,但是作业成本明显升高。压后分析认为,近井摩阻过高的原因可能是由于测试压裂注入液量较小,无法有效驱替近井地带孔隙空间内的天然气,最终在该处形成气液两相流导致摩阻测量值偏高。对压裂摩阻进行了理论分析,采用了一种新的、可以消除这种两相流干扰的测试压裂摩阻的方法,并在多口井中进行了应用,能够消除干扰值85%以上,从而大幅降低了施工时间和施工费用。

关键词：近井摩阻两相流动小型压裂阶梯降

MANAGEMENT ANd SUBSURFACE EFFECTS ON RUNOFFANd SEdIMENT YIELd FROM SMALL WATERSHEdS

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International Journal of Sediment Research 2000年第2期 217-232页

作者： dabney, S. M. L. d. Meyer C. E. Murphree( USdA-ARS, National Sedimentation Laboratory, Oxford, MS, USA)R. L. Raper(USdA-ARS, National Soil dynamics Laboratory, Aubum, AL, USA)

Research on erosion plots and small watersheds with upland loessal soils containing hydraulically-controlling subsurface horizons showed that as scale increases so does the amount ofarmual runoff Theamount of runoff from 2 to 3 ha watersheds was twice that from 0.008 ha plots. However, the ratio ofrunoff from watersheds to plots was 3.0 from dec through March, and only 1 .7 during the rest of the *** penetrometer resistance measurements documented the presence of restrictive layers within1 m of the soil surface. Observation wells showed the presence of spatially varying perched water *** propose that the runoff difference between plot and watershed scales was re1ated to the increasingimportance of hydraulically restrictive subsurface horizons, especially during the winter months. Waterinfiltrated into linear backslope areas that the plots represent may converge in concave toe slopes areas,creating wetter antecedent conditions and return flow contributions to surface runoff No-tillmanagement reduced sediment production by about 90% on plots and by at least 95% on watersheds; notill reduced runoff about 10% from both plots and watersheds in this study. Conservation managementaffected hydraulic resistance at the soil surface rather than the permeability of deep restrictive layers.

关键词： Erosion plot No-till management Conservation management Runoff Sediment yield

Gas Source Molecular Beam Epitaxy of High-Quality Strained Si1-xGex/Si Superlatice Materilas

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电子显微学报 1997年第4期 39-40页

作者： L.F.Zou\ Z.G.Wang\ d.Z.Sun\ X.F.Liu\ J.W.Zhang J.P.Li\ M.Y.Kong\ L.Y.Lin (Laboratory of Semiconductor Materials Science, Institute of Semiconductors Chinese Academy of Sciences, P.O.Box 912, Beijing 100083, China)

ＧａｓＳｏｕｒｃｅＭｏｌｅｃｕｌａｒＢｅａｍＥｐｉｔａｘｙｏｆＨｉｇｈＱｕａｌｉｔｙＳｔｒａｉｎｅｄＳｉ１－ｘＧｅｘ／ＳｉＳｕｐｅｒｌａｔｉｃｅＭａｔｅｒｉｌａｓＬ．Ｆ．ＺｏｕＺ．Ｇ．ＷａｎｇＤ．Ｚ．ＳｕｎＸ．Ｆ．... 详细信息

ＧａｓＳｏｕｒｃｅＭｏｌｅｃｕｌａｒＢｅａｍＥｐｉｔａｘｙｏｆＨｉｇｈＱｕａｌｉｔｙＳｔｒａｉｎｅｄＳｉ１－ｘＧｅｘ／ＳｉＳｕｐｅｒｌａｔｉｃｅＭａｔｅｒｉｌａｓＬ．Ｆ．ＺｏｕＺ．Ｇ．ＷａｎｇＤ．Ｚ．ＳｕｎＸ．Ｆ．ＬｉｕＪ．Ｗ．ＺｈａｎｇＪ．Ｐ．Ｌ...

关键词： Source Gas Molecular High-Quality Strained Materilas Superlatice x)Ge_x/Si Beam Ge

A community-based prospective cohort study of dengue viral infection in Malaysia: the study protocol

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Infectious diseases of Poverty 2016年第1期5卷 691-699页

作者： Nowrozy Kamar Jahan Mohtar Pungut Ahmad Amreeta dhanoa Cheong Yuet Meng Lau Wee Ming daniel d.Reidpath Pascale Allotey Anuar Zaini Maude Elvira Phipps Quek Kia Fatt Aman Bin Rabu Rowther Sirajudeen Ahmad AbdulBasitz Ahmad Fatan Faidzal Adlee Ghafar Hamdan Bin Ahmad Iekhsan Othman Sharifah SyedHassan jeffrey Cheah School of Medicine and Health Sciences Monash University MalaysiaJalan Lagoon SelatanBandar SunwayPetaling Jaya 47500Malaysia Segamat district Public Health Office Ministry of Health MalaysiaPeti Surat 102Jalan Gudang UbatKampung GubahSegamatJohor Darul Takzim 85000Malaysia Infection and Immunity Cluster Tropical Medicine and Biology PlatformMonash University MalaysiaJalan Lagoon SelatanBandar SunwayPetaling Jaya 47500Malaysia South East Asia Community Observatory(SEACO) 146 Jalan Sia Her YamSuite 601-606Wisma CentrepointSegamatJohor Darul Takzim 85000Malaysia Hospital Segamat Ministry of Health MalaysiaKM 6Jalan GenuangSegamatJohor Darul Takzim 85000Malaysia University Sains Malaysia GelugorPenang 11800Malaysia

Background:Globally,dengue infections constitute a significant public health *** recent decades,Malaysia has become a dengue hyper-endemic country with the co-circulation of the four dengue virus *** cyclical dominance of sub-types contributes to a pattern of major *** consequences can be observed in the rising incidence of reported dengue cases and dengue related *** the complex interaction of the dengue virus,its human hosts and the mosquito vectors at the community level may help develop strategies for addressing the ***:A prospective cohort study will be conducted in Segamat district of Johor State in Peninsular *** received approval from the Malaysian Medical Research Ethics Committee and Monash University Human Research Ethics *** study will be conducted at a Malaysian based health and demographic surveillance site over a 1 year period in three different settings(urban,semi-urban and rural).The study will recruit healthy adults(male and female)aged 18 years and over,from three ethnic groups(Malay,Chinese and Indian).The sample size calculated using the Fleiss method with continuity correction is ***-surveillance of participants will be undertaken to identify asymptomatic,otherwise healthy cases;cases with dengue fever who are managed as out-patients;and cases with dengue fever admitted to a hospital.A genetic analysis of the participants will be undertaken to determine whether there is a relationship between genetic predisposition and disease severity.A detailed medical history,past history of dengue infection,vaccination history against other flaviviruses such as Japanese encephalitis and Yellow fever,and the family history of dengue infection will also be *** addition,a mosquito surveillance will be carried out simultaneously in recruitment areas to determine the molecular taxonomy of circulating ***:The research findings will estimate the burden of

关键词： dengue Community-based Prospective cohort study Health and demographic surveillance site SEACO Protoco