A dinâmica cibercultural na ressignificação do conhecimento geométrico: uma proposta metodológica para o ensino da geometria espacial

O estudo que apresento está assentado em questões, cujo aprofundamento pretende trazer contribuição à ressignificação dos processos de ensino-aprendizagem, especialmente no âmbito da geometria espacial. Dentre as questões destaco: (1) a relação entre cibercultura e processos de ensinar-aprender, especialmente no que se refere ao conteúdo da geometria espacial, (2) os modos de sentir, de expressar-se e de aprender que a mediação da cultura digital traz contemporaneamente para os jovens; (3) a pesquisa entendida como acontecimento/experiência, cuja dimensão de intervenção permite a pesquisador e pesquisados relacionarem-se dialogicamente, reconhecendo-se como co-autores do processo de investigação. O principal interesse da pesquisa foi investigar se a dinâmica do uso das tecnologias em redes, própria da cibercultura, pode ressignificar o aprendizado do conhecimento de geometria espacial de jovens alunos do Ensino Médio. A abordagem teórico-metodológica está fundamentada nos princípios bakhtinianos da dialogia e da alteridade e no conceito vigotskiano de mediação. Sob a orientação da abordagem histórico-cultural, outros interlocutores teóricos contribuiram de modo significativo para a compreensão das questões que envolvem a relação entre educação e processos comunicacionais pós-massivos, tendo sido indispensáveis à construção e interpretação dos dados Dentre eles, cito Lucia Santaella, Maria Teresa Freitas, Pierre Lévy, Marília Amorim, Maria Helena Bonilla, Nelson Pretto, Edmea Santos, Guaracira Gouvêa, Maria Luiza Oswald, entre outros. O estudo foi realizado numa escola da rede estadual na cidade de Cabo Frio/RJ, sendo sujeitos da pesquisa 78 alunos/as do 2 e 3 ano do Ensino Médio. Para colher as informações de caráter objetivo, foi aplicado um questionário através do aplicativo Google Docs. Os dados qualitativos foram construídos por intermédio da dinâmica de convergência de mídias que engloba a metodologia Webquest, a interface wiki e o software Geogebra. Tendo em vista os pressupostos do estudo que relacionam propostas autorais, posturas alteritárias e práticas cotidianas procurei construir uma estratégia metodológica em que a apropriação das dinâmicas ciberculturais e das interfaces digitais fosse capaz de me auxiliar a identificar como usar estes dispositivos no processo de ressignificação da construção do conhecimento geométrico, bem como descobrir os limites de sua aplicação. Os resultados alcançados, ainda que provisórios dado o inacabamento dos acontecimentos que fazem da pesquisa uma experiência inacabada, apontam para a necessidade de reconhecer os jovens como produtores de saberes que deveriam ser legitimados para que a prática de ensinar-aprender geometria resultasse em conhecimento que articula ciência e vida cotidiana. Essa foi a valiosa lição que a pesquisa trouxe à minha própria prática de professora de matemática, lição que, espero, possa ecoar para outros professores.

Língua, patrimônio e museu no Museu da Língua Portuguesa e nas réplicas de seus visitantes

Esta tese de doutoramento é um estudo de caso que tem por objeto o Museu da Língua Portuguesa a partir de agora MLP , instituição inaugurada em 20 de março de 2006, e sediada no centro da capital paulistana, no prédio da centenária Estação da Luz. O museu, patrocinado pelo governo do estado de São Paulo e a Fundação Roberto Marinho em parceria com outras empresas públicas e privadas, utiliza uma iconografia diversificada, ancorada em novas tecnologias da comunicação. Nossa abordagem tem como ponto de partida as noções de língua, patrimônio e museu que, embora pertencentes a distintas cartografias teóricas, são fenômenos sociais que põem em questão a representação de identidades sociais, a memória e o esquecimento, as estratégias de poder. Tendo como bases teóricas as categorias de dialogismo bakhtiniano, de memória social (HALBWACHS) e as relações entre memória, discurso e poder (FOUCAULT), nosso objetivo é descrever e analisar a trama discursiva do Museu da Língua Portuguesa, levando em conta seus narradores oficiais e oficiosos, seu discurso expositivo em múltiplos formatos e, sobretudo, as réplicas de seus visitantes. As questões de pesquisa que formulamos dizem respeito aos sentidos de língua e de literatura musealizados no MLP, aos sentidos de patrimônio aí encenados, e aos sentidos da própria designação de museu. A leitura e interpretação do MLP que fizemos, com o aporte das réplicas de seus visitantes, nos levaram a destacar o que o MLP lembra as formações discursivas que atravessam sua proposta expositiva e o que o MLP esquece

A resistência na literatura em tempos de globalização

Este trabalho pretende investigar as relações existentes entre o mercado, a globalização, a chamada pós-modernidade e a literatura. Para tanto, inicialmente delineia-se um breve panorama da literatura brasileira contemporânea, com a finalidade de expor uma parte do que ora se produz em termos de crítica e de ficção. Em seguida, trata-se do controverso conceito de pós-modernidade, com atenção especial às divergências terminológicas que vem suscitando, principal tópico objeto das considerações finais. Analisa-se depois o fenômeno da globalização, particularmente no que afeta a formação de novas subjetividades, ponderando-se também seu impacto na conceituação dos valores em geral e dos valores estéticos em particular. Por fim, passa-se ao conceito de resistência, com base em elementos teóricos extraídos de Schiller (o papel do artista), Agambem (a questão do contemporâneo) e Alfredo Bosi (relações entre narrativa e resistência), fechando-se o foco na produção literária, mediante análise sucinta da narrativa Eles eram muitos cavalos, de Luiz Ruffato

Strain comparisons in aquaculture species: a manual

When different strains or breeds of a particular species are available, the best choice is seldom immediately obvious for producers. Scientists are also interested in the relative performance of different strains because it provides a basis for recommendations to producers and it often stimulates the conduct of work aimed at unraveling the underlying biological mechanisms involved in the expression of such differences. Hence, strain or breed comparisons of some sort are frequently conducted. This manual is designed to provide general guidelines for the design of strain comparison trials in aquaculture species. Example analyzes are provided using SAS and SPSS. The manual is intended to serve a wide range of readers from developing countries with limited access to information. The users, however, are expected to have a basic knowledge of quantitative genetics and experience in statistical methods and data analysis as well as familiarity with computer software. The manual mainly focuses on the practical aspects of design and data analysis, and interpretation of results.

O discurso humorístico no gênero crônica e suas implicações no ensino de Língua Portuguesa

Este trabalho tem como objetivo analisar, como proposta de ensino, o humor em crônicas, tomando como corpus especificamente as de Luis Fernando Verissimo. Pretende-se demonstrar que o gênero textual crônica humorística é relevante no ensino enquanto aproximação com a língua e serve também para o entendimento de fenômenos linguísticos, semânticos e pragmáticos como a polissemia, a ambiguidade, a ironia, a metáfora, a metonímia. Partimos da relevância de se trabalhar a leitura literária na escola, defendida pelos PCN, com o propósito de promover o letramento em todas as suas etapas. Acreditamos que esse trabalho só é possível com o texto, e, portanto, este deve ser explorado em sala de aula em todas suas variedades. Os estudos sobre discurso e interação, sobre o uso dos gêneros textuais na escola, especialmente das crônicas e dos processos de leitura e interpretação das mesmas, corroboram para a nossa pesquisa. Em um segundo momento, abordamos as teorias filosófica, de Bergson; psicanalítica, de Freud; discursiva, de Possenti e cognitiva, de Salomão, como explicação da construção e do entendimento do humor e seus mecanismos de significação.

O enfermeiro e a utilização do cateter central de inserção periférica em recém-nascidos: contribuições à luz da segurança e bioética

Esta pesquisa teve como objeto de estudo a segurança do recém-nascido no processo de utilização do Cateter Central de Inserção Periférica (PICC) e, como objetivos: conhecer o significado de segurança para o enfermeiro no processo de utilização do PICC em recém-nascidos; descrever os cuidados prestados pelo enfermeiro no uso do PICC em recém-nascidos e analisar os nexos entre segurança e os princípios bioéticos no uso do PICC em recém-nascidos na prática assistencial dos enfermeiros. Trata-se de um estudo descritivo de abordagem qualitativa. O cenário foi a unidade de terapia intensiva neonatal de um Hospital Universitário localizado no município do Rio de Janeiro e os sujeitos, 11 enfermeiros plantonistas capacitados e que realizam a implantação do PICC em recém-nascidos. Para a coleta de dados realizou-se a entrevista semiestruturada, gravada em fita cassete, entre os meses de março e junho de 2012. Posteriormente estas foram transcritas e analisadas por meio da análise de conteúdo de Bardin, na modalidade temática e interpretada à luz dos princípios bioéticos e da segurança do paciente. Como resultados emergiram 04 categorias: Técnicas e Procedimentos, Cuidados com o recém-nascido, Aspectos relacionados à equipe e Aspectos relacionados à família. Para os enfermeiros, segurança no processo de utilização do PICC no recém-nascido, significa saber indicar o uso deste dispositivo de acordo com as peculiaridades de cada criança. Exercer cuidados antes, durante e após o uso do cateter, valorizar os cuidados técnicos relacionados ao procedimento, possuir conhecimento teórico-prático e ter disponibilidade de recursos materiais e humanos para desenvolver um cuidado seguro. Além de atentar para os registros e protocolos da unidade acerca desta prática assistencial. Para preservar a segurança do neonato, compreendem ser necessária a tomada de decisão em conjunto com o médico acerca do momento ideal para se implantar este dispositivo, bem como a escolha do tipo ideal de sedação para o mesmo, dentre outros aspectos. No processo de utilização do PICC, os enfermeiros entendem a manutenção da temperatura corporal, a realização de medidas de conforto perante a dor, a prevenção de infecções e o posicionamento adequado do recém-nascido durante o procedimento, como atitudes essenciais para a promoção de sua segurança. Buscam, também, esclarecer os pais quanto ao procedimento que será realizado com seu filho. Conclui-se que o enfermeiro, no que diz respeito à prática do PICC, atua de acordo com os princípios bioéticos de beneficência e não-maleficência, já que realiza sua assistência visando o bem-estar do neonato, procurando minimizar os desconfortos associados a esse procedimento. Apesar de esclarecerem os pais quanto ao procedimento que será realizado com seu filho, alguns enfermeiros, não os consultam previamente acerca da autorização para implantação deste dispositivo infringindo, assim, o princípio bioético da autonomia.

Cartas ao congresso nacional: expressões escritas da cidadania no processo constituinte de 1988

A pesquisa de doutorado que apresento teve como objeto de estudo cartas escritas por diferentes sujeitos, enviando ideias para a Constituição brasileira promulgada em outubro de 1988. As cartas selecionadas são todas documentos manuscritos por diferentes sujeitos, componentes de um largo acervo documental, que apresenta indícios de que seus autores não concluíram o ensino fundamental, do tempo e do espaço em que foram escritas, hoje parte do fundo patrimonial do Museu da República. Esta pesquisa inseriu-se na temática sobre pluralidade de conhecimentos/saberes que circulam socialmente, especialmente os traduzidos por expressões escritas de sujeitos jovens e adultos. Entendi essa produção como um processo de participação política, ou seja, minha hipótese central pode ser assim resumida: sujeitos, em seus processos de produção de cidadania, ao escreverem cartas à elaboração da Constituição, em exercício de participação política, se autoproduzem como cidadãos, pela escrita. Mais do que exercício de cidadania, a abordagem e interpretação que fiz das escritas epistolares mostraram também que os sujeitos tinham conhecimentos que talvez ignorassem, e que independiam de conhecimentos formais para expressaram outros sentidos de cidadania, afirmando direitos tantas vezes negados. Esse reconhecimento levou-me à certeza de que estava diante de práticas sociais em que a noção de justiça cognitiva podia ser identificada, pelo fato de as pessoas, fora do espaço do conhecimento formal, revelarem outros conhecimentos indispensáveis ao exercício da cidadania, demonstrando a condição de iguais a pessoas escolarizadas em espaços formais. Assim sendo, devo admitir que o conhecimento formal não é condição para o exercício da cidadania, e que a presença de outros conhecimentos para além dos formais da cultura escrita, constituídos em redes, porque forjados na vida, no cotidiano em que os sujeitos vivem, e enredados em suas mais diferentes histórias que os constituem, e assim representados no modo como escreviam, permitiu reconhecer politicamente esses sujeitos de direito, fora do espaço da chamada educação formal. Esse reconhecimento levou-me à certeza (sempre provisória) de uma prática social em que a justiça cognitiva podia ser identificada, pelo fato de as pessoas, fora do espaço do conhecimento formal, revelarem outros conhecimentos indispensáveis ao exercício da cidadania, porque se reconheciam em patamar de igualdade com pessoas escolarizadas.

CIMS环境下基于视图对象的多库集成与互操作技术

异构分布计算环境中多数据库的集成与互操作是ＣＩＭＳ环境下信息集成的一个主要研究领域。本文在分析这方面研究成果的基础上，结合ＣＩＭＳ环境下信息集成的需求，提出了一种基于视图对象（ＶｉｅｗＯｂｊｅｃｔ）机制的多库集成与互操作技术，其基本思想是通过视图对象的机制对多种数据源中的数据进行多层抽象与封装，以满足ＣＩＭＳ环境下不同层次的应用集成需求。文中还以公共对象请求代理结构（ＣＯＲＢＡ）为基础提出了基于对象请求代理（ＯＲＢ）的多数据库集成与互操作系统ＶＯ－ＭＤＢＳ的实现机制。

胜利勘探数据中心及勘探辅助决策系统研究

In the paper through extensive study and design, the technical plan for establishing the exploration database center is made to combine imported and self developed techniques. By research and repeated experiment a modern database center has been set up with its hardware and network having advanced performance, its system well configured, its data store and management complete, and its data support being fast and direct. Through study on the theory, method and model of decision an exploration decision assistant schema is designed with one decision plan of well location decision support system being evaluated and put into action. 1. Study on the establishment of Shengli exploration database center Research is made on the hardware configuration of the database center including its workstations and all connected hardware and system. The hardware of the database center is formed by connecting workstations, microcomputer workstations, disk arrays, and those equipments used for seismic processing and interpretation. Research on the data store and management includes the analysis of the contents to be managed, data flow, data standard, data QC, data backup and restore policy, optimization of database system. A reasonable data management regulation and workflow is made and the scientific exploration data management system is created. Data load is done by working out a schedule firstly and at last 200 more projects of seismic surveys has been loaded amount to 25TB. 2. Exploration work support system and its application Seismic data processing system support has the following features, automatic extraction of seismic attributes, GIS navigation, data order, extraction of any sized data cube, pseudo huge capacity disk array, standard output exchange format etc. The prestack data can be accessed by the processing system or data can be transferred to other processing system through standard exchange format. For supporting seismic interpretation system the following features exist such as auto scan and store of interpretation result, internal data quality control etc. the interpretation system is connected directly with database center to get real time support of seismic data, formation data and well data. Comprehensive geological study support is done through intranet with the ability to query or display data graphically on the navigation system under some geological constraints. Production management support system is mainly used to collect, analyze and display production data with its core technology on the controlled data collection and creation of multiple standard forms. 3. exploration decision support system design By classification of workflow and data flow of all the exploration stages and study on decision theory and method, target of each decision step, decision model and requirement, three concept models has been formed for the Shengli exploration decision support system including the exploration distribution support system, the well location support system and production management support system. the well location decision support system has passed evaluation and been put into action. 4. Technical advance Hardware and software match with high performance for the database center. By combining parallel computer system, database server, huge capacity ATL, disk array, network and firewall together to create the first exploration database center in China with reasonable configuration, high performance and able to manage the whole data sets of exploration. Huge exploration data management technology is formed where exploration data standards and management regulations are made to guarantee data quality, safety and security. Multifunction query and support system for comprehensive exploration information support. It includes support system for geological study, seismic processing and interpretation and production management. In the system a lot of new database and computer technology have been used to provide real time information support for exploration work. Finally is the design of Shengli exploration decision support system. 5. Application and benefit Data storage has reached the amount of 25TB with thousand of users in Shengli oil field to access data to improve work efficiency multiple times. The technology has also been applied by many other units of SINOPEC. Its application of providing data to a project named Exploration achievements and Evaluation of Favorable Targets in Hekou Area shortened the data preparation period from 30 days to 2 days, enriching data abundance 15 percent and getting information support from the database center perfectly. Its application to provide former processed result for a project named Pre-stack depth migration in Guxi fracture zone reduced the amount of repeated process and shortened work period of one month and improved processing precision and quality, saving capital investment of data processing of 30 million yuan. It application by providing project database automatically in project named Geological and seismic study of southern slope zone of Dongying Sag shortened data preparation time so that researchers have more time to do research, thus to improve interpretation precision and quality.

三维VSP技术的研究及应用

Today, because of high petroleum consumption of our country, society steady development and difficulty increase in new resources exploration, deep exploitation of the existing oilfield is needed. More delicate reservoir imaging and description, such as thin layer identification, interlayer exploitation monitoring, subtle structure imaging, reservoir anisotropy recognition, can provide more detail evidence for new development adjustment scheme and enhanced oil recovery. Now, the people have already realized the 3D VSP technique more effective than the general methods in solving these aspects. But VSP technique especially 3D VSP develop slowly due to some reasons. Carrying out the research of VSP technique, it will be very useful to the EOR service. 3D VSP techniques include acquisition、data processing and interpretation. In this paper, the author carried out some researches around acquisition and processing. The key point of acquisition is the survey design, it is critical to the quality of the data and it will influence the reservoir recognition as follows. The author did detailed researches on the layout pattern of shot point and geophone. Some attributes relate to survey design such as reflectivity, incidence angle, observation area, reflection points distribution, fold, minimum well source distance, azimuth angle and so on are studied seriously. In this geometry design of 3D-VSP exploration in deviated wells, the main problems to be solved are: determining the center position of shots distribution, the effect of shots missing on coverage areas and coverage times，locating the shots and receivers of multi-wells. Through simulating and analyzing, the above problems are discussed and some beneficial conclusions are drawn. These will provide valuable references to actual survey design. In data processing, researches emphasize on those relatively key techniques such as wavefield separation, VSP-CDP imaging, the author carried out deep researches around these two aspects. As a result, variant apparent slowness wavefield separation method developed in this article suit the underground variant velocity field and make wavefield separation well, it can overcome reflection bending shortage aroused by conventional imaging method. The attenuateion range of underground seismic wave is very important for amplitude compensation and oil/gas identification.In this paper, seismic wave attenuateion mechanism is studied by 3D-VSP simulateion and Q-inversion technique. By testing with seismic data, the method of VSP data attenuateion and relationship of attenuateion attribute variant with depth is researched. Also the software of survey design and data processing is developed, it fill the gap of VSP area in our country. The technique developed applied successfully in SZXX-A Oilfield、QKYY-B Oilfield、A area and B area. The good results show that this research is valuable, and it is meaningful to the VSP technique development and application of offshore oil industry and other areas in our country.

储层评价目标驱动的地震叠前叠后综合反演方法研究

The exploration and development of natural gas in the north of Ordos basin have been one important part in China’s energy stratagem. Reservoir in upper Palaeozoic group is of lithological trap and its prediction is a crux in a series of works. Based on foregoing seismic reservoir prediction, seismic data are re-processed with some optical methods and pre-stack information is used in corresponding inversions. Through the application of diverse methods, a series of techniques for reservoir prediction come into being. Several results are achieved as flowing: 1. A set of log processing and interpretation methods is developed. Porosity, permeability and gas saturation models are rebuilt. 2. Based on the petro-physics analysis of reservoirs in upper Palaeozoic group, the equations about lithology, property, hydrocarbon and elastic parameters are established. 3. Forward modeling based on elastic wave theory is first applied in the study area and increases the resolution of modeling results. 4. A series of techniques such as pre-stack time migration and others are combined to improve the data quality. 5. Pre-stack seismic inversion is first employed in the north of Ordos Basin and brings the results of EI, P-impedance, S-impedance and other elastic parameters. 6. In post-stack inversion, logs indicating reservoir parameters are rebuilt and boost the resolution of lithology inversion. 7. Amplitude, coherence, frequency-discomposed amplitude, waveform and other sensitive attributes are extracted to describe sands distribution. Seismic modes standing for sands of P1x3, P1x2 are established. 8. Among 9 proposed wells, 8 wells encountered sands and became production wells. The output of DK13 amounts to 510,000 m3 per day. Keywords：the north of Ordos Basin, reservoir prediction, pre-stack inversion, post-stack inversion, seismic attributes．

叠前叠后联合反演技术及其在QHD32-6油田的应用研究

What geophysical inversion studied includes the common mathematics physical property of inversion and the constitution and appraisal method of solution in geophysics domain, i.e. using observed physical phenomenon from the earth surface to infer space changing and physical property structure of medium within the earth. Seismic inversion is a branch of geophysical inversion. The basic purpose of seismic inversion is to utilizing seismic wave propagating law in the medium underground to infer stratum structure and space distribution of physical property according to data acquisition, processing and interpretation, and then offer the vital foundation for exploratory development. Poststack inversion is convenient and swift, its acoustic impedance inversion product can reflect reservoir interior changing rule to a certain degree, but poststack data lack abundant amplitude and travel time information included in prestack data because of multiple superimpose and weaken the sensitiveness which reflecting reservoir property. Compared with poststack seismic inversion, prestack seismic inversion has better fidelity and more adequate information. Prestack seismic inversion, including waveform inversion, not only suitable for thin strata physical property inversion, it can also inverse reservoir oil-bearing ability. Prestack seismic inversion and prestack elastic impedance inversion maintain avo information, sufficiently applying seismic gathering data with different incident angle, partial angle stack, gradient and intercept seismic data cube. Prestack inversion and poststack inversion technology were studied in this dissertation. A joint inversion method which synthesize prestack elastic wave waveform inversion, prestack elastic impedance inversion and poststack inversion was proposed by making fully use of prestack inversion multiple information and relatively fast and steady characteristic of poststack inversion. Using the proposed method to extract rock physics attribute cube with clear physical significance and reflecting reservoir characterization, such as P-wave and S-wave impedance, P-wave and S-wave velocity, velocity ratio, density, Poisson ratio and Lame’s constant. Regarding loose sand reservoir in lower member of Minghuazhen formation, 32-6 south districts in Qinhuangdao,as the research object, be aimed at the different between shallow layer loose sand and deep layer tight sand, first of all, acquire physical property parameters suitable for this kind of heavy oil pool according to experimental study, establishing initial pressure and shear wave relational model; Afterwards, performing prestack elastic wave forward and inversion research, summarizing rules under the guidance of theoretical research and numerical simulation, performing elastic impedance inversion, calculating rock physics attributes; Finally, predicting sand body distribution according to rock physics parameters, and predicting favorable oil area combine well-logging materials and made good results.

海上时移地震综合解释技术研究与应用

The practical application and development of the time-lapse seismic reservoir monitor technology has indicated which has already become one of most important development technologies in seeking the surplus oil distribution and improving the reservoir recovering. The paper, first obtained the rock physics experiment analysis data according to the Bohai Sea loose sandstone in-situ measure technical, and determined the feasibility research of the S oil-field on the time-lapse seismic reservoir monitoring combining with the time-lapse numeric simulation technology, which was used to analyze the time-lapse seismic respond raw of the reservoir parameters change and pointed out the attentive problems during the real time-lapse seismic processing and interpretation. Next, simply introduced the technical link and the effect of the time-lapse mutual constrained fidelity and match processing aiming at the local complex gathering condition, geological condition, development engineering condition. Third, introduced the time-lapse integrated interpretation and the technical system with the innovative key technology that includes the time-lapse difference explanation technology, the time-lapse seismic multi-attributes integrated interpretation technology, and the time-lapse constrained reservoir parameters inversion technology, and so on. Using the time-lapse difference direct explanation technology, directly obtained the surplus oil macroscopic distribution through the difference seismic data; Using the presenting 8 big principles of the sublayer isochronisms comparison, carried on the time-lapse integrated interpretation analysis on the fine sublayer comparison and the thin oil-layer(group) contrast and the oil layer (group); The paper putted up the research, contrast, applications of the multi-sides sensitive attribute analysis and the RBF nerve network on the nearest study algorithm, and predicted the reservoir parameters and the surplus oil distribution with them; Combining with innovative researches and the time-lapse seismic constrained reservoir parameters inversion technology realized the good combination of the seismic and the reservoir engineering. Fourth, under fully analyzing the geology condition, the reservoir condition, the exploit dynamic data, and the seismic data of the S oil-field, and analyzing the time-lapse difference factors with reservoir dynamic exploit data, calibrated the oil-gas saturation change, the pressure change, the water saturation change, and determined the rationality of the time-lapse seismic difference, and finally obtained the surplus oil distribution, the water flood characteristic understanding, reservoir degasification, and pressure drop raw, and so on, which had been used in the well pattern tightening plan proof of the S oil-field development adjustment plan. Finally, the paper summarized the knowledge and understanding of the marine time-lapse seismic integrated interpretation, also had pointed out the further need researched question.

Pg震相走时的各向异性影响及各向异性结构成像

As the first arrival of seismic phase in deep seismic sounding, Pg is the important data for studying the attributes of the sedimentary layers and the shape of crystalline basement because of its high intensity and reliable detection. Conventionally, the sedimentary cover is expressed as isotropic, linear increasing model in the interpretation of Pg event. Actually, the sedimentary medium should be anisotropic as preferred cracks or fractures and thin layers are common features in the upper crust, so the interpretation of Pg event needs to be taken account of seismic velocity anisotropy. Traveltime calculation is the base of data processing and interpretation. Here, we only study the type of elliptical anisotropy for the poor quality and insufficiency of DSS data. In this thesis, we first investigate the meaning of elliptical anisotropy in the study of crustal structure and attribute, then derive Pg event’s traveltime-offset relationship by assuming a linear increasing velocity model with elliptical anisotropy and present the invert scheme from Pg traveltime-offset dataset to seismic velocity and its anisotropy of shallow crustal structure. We compare the Pg traveltime calculated by our analytic formula with numerical calculating method to test the accuracy. To get the lateral variation of elliptical anisotropy along the profiling, a tomography inversion method with the derived formula is presented, where the profile is divided into rectangles. Anisotropic imaging of crustal structure and attribute is efficient method for crust study. The imaging result can help us interprete the seismic data and discover the attribute of the rock to analyze the interaction between layers. Traveltime calculation is the base of image. Base on the ray tracing equations, the paper present a realization of three dimension of layer model with arbitrary anisotropic type and an example of Pg traveltime calculation in arbitrary anisotropic type is presented. The traveltime calculation method is complex and it only adapts to nonlinear inversion. Perturbation method of travel-time calculation in anisotropy is the linearization approach. It establishes the direct relation between seismic parameters and travetime and it is fit for inversion in anisotropic structural imaging. The thesis presents a P-wave imaging method of layer media for TTI. Southeastern China is an important part of the tectonic framework concerning the continental margin of eastern China and is commonly assumed to comprise the Yangtze block and the Cathaysia block, the two major tectonic units in the region. It’s a typical geological and geophysical zone. In this part, we fit the traveltime of Pg phase by the raytracing numerical method. But the method is not suitable here because the inefficiency of numerical method and the method itself. By the analytic method, we fit the Pg and Sg and get the lateral variation of elliptical anisotropy and then discuss its implication. The northeastern margin of Qinghai-Tibetan plateau is typical because it is the joint area of Eurasian plate and Indian plate and many strong earthquakes have occurred there in recent years．We use the Pg data to get elliptical anisotropic variation and discuss the possible meaning.

天然气藏地震识别技术研究

The Research of Seismic Recognition Techniques for Gas Reservoir Shang Yong_sheng(Geophysics) Directed by Yang Chang-chun Abstract Gas reservior is one of the most important nature resources. Someone forecast that the output will exceed crude oil in 2015 and become the largest energy source. Recently,more and more gas reservior are discovered as the oil field and gas filed exploration go deep into development. Although the gas proved reserves rise greatly the explorative degree of natural gas resource in our country is still very low. The potential of gas exploration is very great and our task is so hard. How to recognise and discover new gas reservoir is the first task based on the great gas reservior resources foreground. the gas reservior in different oil and gas field have its special gas generation, reservoiring, physical property conditions. However,it may have the same geophysical characters. So,it is very important to analyse, research, summarizing the geophysical characters of the gas reservior and make use of the characters to identify the gas layer effectively. This paper start with modeling,and it discuss the geophysical characters of the gas reservior response. It analyse the seismical wave characters of the gas reservoir. Furthermore, it summarize the method of using the seismica profile to identify the gas reservior directly. The paper discuss the research of extracting diffraction wave for mass diffraction wave grow at the edge of the gas reservoir at the seismic section. Making use of the technique of extracting diffraction wave to identify the gas reservior is the first experiment of the gas reservoir prediction technique. The avo technology is a new geophysical method. From the pre-stack analysis, this paper discuss the technique of using the rich information to identify the gas reservoir. Based on the case study of the Qidam basin and the Hailaer basin it discuss the method of predicating gas reservoir using pre-stack information. It include pre-stack amplitude preserve process, AVO modeling, fluid replacement technique, AVO analysis and interpretation technique. The paper summarize a gas reservoir prediction procedure focusing on the pre-stack information. The seismic wave will cause great attenuation when it pass through the gas layer and the high frequency component loss. This paper discuss the technique of extracting seismic attributes to represent the attenuation degree of seismica wave. Based on the attenuation attributes,it does the research of the gas reservor identification and prediction. At last,the paper discuss the method of calculating the azimuthal anisotropy to predict the fracture reservoir. Keyword: gas reservoir, diffraction wave, AVO, attenuation attribute,fracture prediction