Brazilian Journal of Petroleum and Gas最新文献_第6页

COMPARATIVE STUDY OF THE MINIMUM THICKNESS OF NATURAL GAS DISTRIBUTION TUBES FOCUSING ON LOCATED PLASTICIZATION 以定位塑化为重点的天然气配气管最小厚度比较研究

Brazilian Journal of Petroleum and Gas Pub Date : 2020-10-06 DOI: 10.5419/bjpg2020-0014

J. Almeida, G. Weigert

{"title":"COMPARATIVE STUDY OF THE MINIMUM THICKNESS OF NATURAL GAS DISTRIBUTION TUBES FOCUSING ON LOCATED PLASTICIZATION","authors":"J. Almeida, G. Weigert","doi":"10.5419/bjpg2020-0014","DOIUrl":"https://doi.org/10.5419/bjpg2020-0014","url":null,"abstract":"Natural gas distribution systems traditionally rely on the use of carbon steel pipes. As with the engineering of other mechanical components, specific standards for the design of these components and accessories must be applied appropriately for each corresponding project. For the specific case of transmission networks and distribution of piped natural gas, one should use as reference the Brazilian code NBR-12712 Systems design of fuel gas transmission and distribution. Among the various items covered by this code, the sub-item that provides guidelines to calculate the minimum thickness of the pipe for a given design pressure deserves special attention. The present work, therefore, makes a comparative analysis between the wall thicknesses defined by the mentioned standard, the wall thicknesses used in certain operational situations, and the wall thicknesses corresponding to the limit yield and plasticization conditions of the material considered. The present study also reviews the operational data of the COMPAGAS distribution network the company responsible for the distribution of piped natural gas in the state of Paraná, Brazil.","PeriodicalId":9312,"journal":{"name":"Brazilian Journal of Petroleum and Gas","volume":"2014 1","pages":"175-181"},"PeriodicalIF":0.0,"publicationDate":"2020-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82727389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

VENTURI GAS LIFT VALVE: THEORY AND PRACTICE 文丘里气举阀:理论与实践

Brazilian Journal of Petroleum and Gas Pub Date : 2020-10-06 DOI: 10.5419/bjpg2020-0015

A. R. Almeida

引用次数: 0

FINITE ELEMENT ANALYSIS APPLIED TO A METAL-TO-METAL SEAL DESIGN 有限元分析应用于金属对金属密封设计

Brazilian Journal of Petroleum and Gas Pub Date : 2020-10-06 DOI: 10.5419/bjpg2020-0013

B. N. Lucci, W. Lamas, F. J. Grandinetti, G. Giacaglia

{"title":"FINITE ELEMENT ANALYSIS APPLIED TO A METAL-TO-METAL SEAL DESIGN","authors":"B. N. Lucci, W. Lamas, F. J. Grandinetti, G. Giacaglia","doi":"10.5419/bjpg2020-0013","DOIUrl":"https://doi.org/10.5419/bjpg2020-0013","url":null,"abstract":"This work presents the use of a finite element model software and suggests its use as a tool to develop metal-to-metal seals with the objective of reducing the number of designs and empirical tests, increasing possibility of success during validation tests, decreasing the number of repetitions of real tests needed, therefore, reducing execution costs. The present work configures a model of seal in a finite element analysis software and simulates different sizes of meshes to evaluate which configuration presented results and computational costs compatible with this work. Then, it develops different models in an interactive way, this is, it performs geometry changes with the intention of optimizing results. At the end of each model, it evaluates the results. This work develops and evaluates six models. At last, the authors selected the model which presented enough contact pressure to perform the sealing. This model presented a compatible stress in accordance with the failure criteria adopted, plastic strain in an acceptable range, and system behavior in accordance with that suggested by Sweeney, Brammer, and Chalmers (2004) in seal extremities.","PeriodicalId":9312,"journal":{"name":"Brazilian Journal of Petroleum and Gas","volume":"60 1","pages":"157-173"},"PeriodicalIF":0.0,"publicationDate":"2020-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79178506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

MODELING AND SIMULATION OF A HORIZONTAL THREE-PHASE SEPARATOR: INFLUENCE OF INLET FLOW 卧式三相分离器的建模与仿真:进口流量的影响

Brazilian Journal of Petroleum and Gas Pub Date : 2020-10-06 DOI: 10.5419/bjpg2020-0012

A. Carvalho, D. Galindo, M. S. C. Tenório, J. G. O. Marinho

{"title":"MODELING AND SIMULATION OF A HORIZONTAL THREE-PHASE SEPARATOR: INFLUENCE OF INLET FLOW","authors":"A. Carvalho, D. Galindo, M. S. C. Tenório, J. G. O. Marinho","doi":"10.5419/bjpg2020-0012","DOIUrl":"https://doi.org/10.5419/bjpg2020-0012","url":null,"abstract":"The fluids produced and transported to the surface by the production manifolds do not have the necessary conditions to be economically viable. Produced fluids consist of at least three fluid phases (oil, water, and gas), besides impurities and contaminants. Therefore, the well stream should be processed as soon as possible after bringing it to the surface. Separator vessels are among the main equipment used at surface production facilities, being responsible for the separation of the produced phases. This work focuses in studying the fluid dynamic behavior in a horizontal three-phase separator. For this, we used the computational fluid dynamics software ANSYS CFX. First, a detailed analysis of a “Standard Case” was performed to better understand the entire separation process within the vessel. The results showed the three phases through simulation time, an analysis of the separation efficiency, an analysis of the different fluids flow lines, an analysis of the pressure gradient inside the vessel, and an analysis of the effect of the diverter baffle, as well as, a variation of fluid flow at the inlet of the separator.","PeriodicalId":9312,"journal":{"name":"Brazilian Journal of Petroleum and Gas","volume":"7 1","pages":"137-155"},"PeriodicalIF":0.0,"publicationDate":"2020-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80912817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

APLICATION OF KRIGING WITH TREND TO SOIL CHARACTERIZATION IN TOP HOLE DESIGN 克里格趋势法在顶孔设计中土壤表征的应用

Brazilian Journal of Petroleum and Gas Pub Date : 2020-07-21 DOI: 10.5419/bjpg2020-0009

P. Silva, C. V. Filho, J. P. L. Santos, E. T. L. Junior, R. Dias, F. Cutrim

引用次数: 1

EVALUATION OF THE STRESS STATE AROUND BOREHOLES USING WELL LOG DATA: A CASE STUDY IN THE SERGIPE-ALAGOAS BASIN, BRAZIL 利用测井资料评价井眼周围应力状态:以巴西sergipe-alagoas盆地为例

Brazilian Journal of Petroleum and Gas Pub Date : 2020-07-21 DOI: 10.5419/bjpg2020-0008

I. S. Souza, M. N. Silva, Y. A. Moura, C. Borba, João Paulo Lobo dos Santos

{"title":"EVALUATION OF THE STRESS STATE AROUND BOREHOLES USING WELL LOG DATA: A CASE STUDY IN THE SERGIPE-ALAGOAS BASIN, BRAZIL","authors":"I. S. Souza, M. N. Silva, Y. A. Moura, C. Borba, João Paulo Lobo dos Santos","doi":"10.5419/bjpg2020-0008","DOIUrl":"https://doi.org/10.5419/bjpg2020-0008","url":null,"abstract":"The oil industry has been investing heavily in studies focused on secondary recovery methods. In this context, water injection represents one of the leading methods used to obtain an increase in recovery factor. Studies to determine geomechanical parameters of rocks through the application of Zoback's equations (Zoback, 2007) using only well logging data are sparse. This work studies the variations of the in-situ stress state around the injector well in a reservoir through the application Zoback’s equations aiming to identify the maximum injection pressure limit to prevent rock fracturing. For the study, the in-situ stresses of the rock were determined using well log data acquired from drillings in a basing located in the Brazilian northeast. The study also considers the Mohr-Coulomb rupture criterion in the determination of the safe region. The results obtained by Mohr-Coulomb rupture criterion were validated with the absorption pressure values obtained with direct data of Leak Off Test (LOT) done in the wells. From the results obtained, it was possible to verify that the calculated values overestimated rupture pressures presenting an average relative error of 7.87%. Furthermore, the stress regime obtained for the Sergipe-Alagoas basin is agreement with other studies found in the literature.","PeriodicalId":9312,"journal":{"name":"Brazilian Journal of Petroleum and Gas","volume":"10 1","pages":"079-091"},"PeriodicalIF":0.0,"publicationDate":"2020-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86742872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

COMPARATIVE ANALYSIS OF PENETRATION RATES USING DOWNHOLE MOTOR AND ROTARY STEERABLE SYSTEM IN AN ONSHORE DIRECTIONAL HOLE 陆上定向井中井下马达与旋转导向系统的钻速对比分析

Brazilian Journal of Petroleum and Gas Pub Date : 2020-07-21 DOI: 10.5419/bjpg2020-0005

A. Sousa, L. V. Amorim, R. C. Oliveira

引用次数: 0

MATHEMATICAL MODELING OF AN AIRLIFT FLOTATION COLUMN WITH DIFFERENT GEOMETRIES FOR WATER AND OIL SEPARATION 不同几何形状气举浮选柱水油分离的数学建模

Brazilian Journal of Petroleum and Gas Pub Date : 2020-07-21 DOI: 10.5419/bjpg2020-0006

D. Barros, J. G. O. Marinho, J. Soletti

{"title":"MATHEMATICAL MODELING OF AN AIRLIFT FLOTATION COLUMN WITH DIFFERENT GEOMETRIES FOR WATER AND OIL SEPARATION","authors":"D. Barros, J. G. O. Marinho, J. Soletti","doi":"10.5419/bjpg2020-0006","DOIUrl":"https://doi.org/10.5419/bjpg2020-0006","url":null,"abstract":"Petroleum is one of the top commodities in the world, which produces some of the most environmentally hazardous wastes, such as produced water. Thus, research on technologies capable of processing wastewater are important for promoting the treatment of this waste and reducing costs in the segment. Among the processes used to treat wastewater, flotation is one of the leading methods used in physical separation operations. The efficiency of this technique has a high influence on internal hydrodynamic flows. This paper proposes a mathematical modeling to fluid dynamics of oil-water separation in an airlift flotation column based on momentum and continuity balance equations. To simplify the modeling used, we considered only the drag force as the most relevant interfacial force in this phenomenon. The software Ansys CFX 13.0 was used to evaluate the data. Three columns were created, and all data were submitted to a simulated effluent, containing 1000 ppm of oil. By evaluating efficiency selection in three columns and observing the countercurrent design, we found 84.72% as the best result achieved. This result can be associated with a column model that allows better phase contact as an ideal turbulence in the recirculation zone. Despite the simplifications in the proposed model, it is possible to observe a good association between the results obtained in the simulations and the ones presented in the literature.","PeriodicalId":9312,"journal":{"name":"Brazilian Journal of Petroleum and Gas","volume":"20 1","pages":"055-064"},"PeriodicalIF":0.0,"publicationDate":"2020-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82406789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

NUMERICAL SIMULATION OF NATURALLY FRACTURED SHALE GAS RESERVOIRS APPLYING THE LAYER MODEL 应用层模型对天然裂缝性页岩气藏进行数值模拟

Brazilian Journal of Petroleum and Gas Pub Date : 2020-07-21 DOI: 10.5419/bjpg2020-0010

J. Junior, R. Queiroz, G. Souza, H. P. A. Souto

{"title":"NUMERICAL SIMULATION OF NATURALLY FRACTURED SHALE GAS RESERVOIRS APPLYING THE LAYER MODEL","authors":"J. Junior, R. Queiroz, G. Souza, H. P. A. Souto","doi":"10.5419/bjpg2020-0010","DOIUrl":"https://doi.org/10.5419/bjpg2020-0010","url":null,"abstract":"Typically, hydrocarbon reservoirs have heterogeneities that influence pressure variation in producing wells. In the case of natural fractures, the layer model has been widely applied to obtain analytical and numerical solutions. In this model, we superimpose the porous media layers representing the porous matrix and fractures. In this work, the layer model is used in the numerical simulation, using cylindrical geometry and finite differences, to determine the pressure in natural gas producing wells. We consider shale gas reservoirs, and obtain the numerical results investigating the effects resulting from the presence of fractures and non-Darcy flow due to slip and adsorption phenomena. This work studies grid refinement and performs numerical verification, as well as a sensitivity analysis varying the main physical parameters that directly influence the reservoir and well pressures, such as permeability, porosity, and thickness of the fracture, reservoir temperature, and the Langmuir pressure and volume. As expected, from specialized and diagnostic plots, we can visualize how fractures favor the flow while capturing typical flow regimes of fractured reservoirs described in the literature.","PeriodicalId":9312,"journal":{"name":"Brazilian Journal of Petroleum and Gas","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83761384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

EVALUATION OF THE KINETICS OF A LIPASE CATALYSED BIODIESEL PRODUCTION FROM A MIXTURE OF WASTE COOKING OIL AND SOYBEAN OIL 脂肪酶催化废食用油和大豆油混合生产生物柴油的动力学评价

Brazilian Journal of Petroleum and Gas Pub Date : 2020-07-21 DOI: 10.5419/bjpg2020-0007

C. Neves, A. Brígida, L. Lucchetti, M. Mendes

引用次数: 0