CT&F - Ciencia, Tecnología y Futuro最新文献_第4页

Comparison of an analytical and computational fluid-dynamics models of a commercial Ranque-Hilsch vortex tube operating with Air and Methane 商业Ranque-Hilsch涡旋管在空气和甲烷中运行的分析和计算流体动力学模型的比较

CT&F - Ciencia, Tecnología y Futuro Pub Date : 2019-10-29 DOI: 10.29047/01225383.145

Luz M Ahumada, A. B. Silvera, Kevin Andres Melendez Valencia, Julio Medina Suarez

引用次数: 0

Effect of impurities in the crude glycerol polymerization reaction to produce polyglycerol 杂质在粗甘油聚合反应中产生聚甘油的影响

CT&F - Ciencia, Tecnología y Futuro Pub Date : 2019-10-29 DOI: 10.29047/01225383.122

G. R. Caballero, C. Suárez, Jeimmy Zulay Rojas Cristancho, Jennifer Paola Pineda Martínez, Álvaro Ramírez García

{"title":"Effect of impurities in the crude glycerol polymerization reaction to produce polyglycerol","authors":"G. R. Caballero, C. Suárez, Jeimmy Zulay Rojas Cristancho, Jennifer Paola Pineda Martínez, Álvaro Ramírez García","doi":"10.29047/01225383.122","DOIUrl":"https://doi.org/10.29047/01225383.122","url":null,"abstract":"Crude glycerol is a low-cost biodiesel industry co-product in a ratio of 1:10 with the main product. The large quantities of crude glycerol produced affect the biodiesel and glycerol markets. Consequently, the exploration of new applications for crude glycerol becomes crucial. As the composition of crude glycerol differs significantly from that of purified glycerol, this work was focused on studying the effect of crude glycerol impurities on its polymerization, as this process, at the same reaction conditions established for the polymerization of purified glycerol, did not result in polymeric products. To identify the reason for this result, the crude glycerol was fully characterized to identify its composition. Hence, an experimental design using simulated crude glycerol was performed to study the effect of the most abundant impurities in the raw glycerol on the polymerization andthe impurities that would persist with such reaction conditions, such as soap and sodium. The response variable for the experimental design was the hydroxyl number of the reaction products. FT-IR spectroscopy was used to analyze differences among the reaction products obtained from different treatments. The presence of soap was identified as primary inhibitory factor and the bottleneck in the formation of polyglycerol via polymerization of crude glycerol. Molecular weights of the polymerization reaction products were determined and analyzed as per the MALDI-TOF technique. The identification of the effect of impurities of crude glycerol polymerization suggests new routes for using it in the production of high value-added chemicals.","PeriodicalId":10745,"journal":{"name":"CT&F - Ciencia, Tecnología y Futuro","volume":"160 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86450650","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: 3

Assessment of causes of overpressure different from sub-compaction: Application in unconventional reservoir 不同于亚压实的超压成因评价:在非常规油藏中的应用

CT&F - Ciencia, Tecnología y Futuro Pub Date : 2019-10-29 DOI: 10.29047/01225383.177

Diego Armando Vargas-Silva, Maika Gambús-Ordaz, Zuly Calderón-Carrillo

{"title":"Assessment of causes of overpressure different from sub-compaction: Application in unconventional reservoir","authors":"Diego Armando Vargas-Silva, Maika Gambús-Ordaz, Zuly Calderón-Carrillo","doi":"10.29047/01225383.177","DOIUrl":"https://doi.org/10.29047/01225383.177","url":null,"abstract":"The necessity for hydrocarbon-producing countries to increase their reserves has led to companies exploring the deposits available in source rocks that might be over-pressured and thus, strict rules are required for their development. Overpressure, which may result in wellbore stability problems, could result from several causes such as mechanical effects, dynamic transfer, chemical stress, thermal stress, among others, in which undercompaction is frequently the main cause, generated when the sediment deposition velocity exceeds the fluid ejection rate.The expansion of fluids generated by thermal stresses and the reduction of porosity caused by chemical stresses may be among the other causes of overpressure in shales. \u0000The new methodology presented in this paper makes it possible to determine the pressure due to thermal stresses caused by the cracking of kerogen and oil in shales. In addition, petrophysical and geochemical models are considered in order to precisely ascertain the increase in pore pressure due to temperature andfluid expansion. An increase of 20% in pressure is seen when compared with undercompaction. As a result of this methodology, the mud window was optimized and the hydrocarbons, generated under subsurface the conditions (pressure, temperature) analyzed, were quantified.","PeriodicalId":10745,"journal":{"name":"CT&F - Ciencia, Tecnología y Futuro","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85947486","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: 4

Evaluation and implementation of High Density Polyethylene liner: Alternative of solution to corrosion-wear problems in flowlines 高密度聚乙烯衬管的评价与实施:解决管道腐蚀磨损问题的替代方案

CT&F - Ciencia, Tecnología y Futuro Pub Date : 2019-05-10 DOI: 10.29047/01225383.153

Gloria I Duarte-Poveda, Martin M Valera-Rosales, Miguel Manrique-Rojas, Miguel Mateus-Barragán

{"title":"Evaluation and implementation of High Density Polyethylene liner: Alternative of solution to corrosion-wear problems in flowlines","authors":"Gloria I Duarte-Poveda, Martin M Valera-Rosales, Miguel Manrique-Rojas, Miguel Mateus-Barragán","doi":"10.29047/01225383.153","DOIUrl":"https://doi.org/10.29047/01225383.153","url":null,"abstract":"Failure mechanisms of CO2 corrosion and abrasive wear by production sand have reduced the service life of flowlines and collector lines in Casabe’s mature field located in the middle Magdalena River Valley Basin of Colombia’s Antioquia department, which has required a timely and effective solution. In this work, laboratory tests set to conditions of Casabe’s production fluid were performed to assess abrasive wear and CO2 corrosion resistance on pipeline sections of both HDPE (High Density Polyethylene) and carbon steel API 5L grade X65. \u0000 The results obtained showed that resistance of HDPE to abrasive wear and CO2 corrosion of HDPE is significant, being three times higher as compared with carbon steel. Additionally, material properties of HDPE remained constant in contrast to performance of carbon steel over time tests. This result is due to the toughness and chemical resistance of HDPE. \u0000 Based on these results, a field trial was implemented to pilot-scale for evaluating the performance of HDPE liner in a collector line with a service life between 6 to 9 months, which collect fluids of different flowlines from producing wells. \u0000 After 12 months in service, the field trial of the liner assessed through visual inspection and DSC tests revealed that HDPE liner exposed at multiphasic fluid conditions with production sand remained stable without evidence of swelling, blistering, softening or changes in its geometry associated with liquid hydrocarbon absorption in its physical structure. This was also evidenced in the results of melting temperature and crystallinity obtained from DSC tests before and after exposure to field conditions. Moreover, pilot tests with HDPE lining after six years of service still operate successfully.","PeriodicalId":10745,"journal":{"name":"CT&F - Ciencia, Tecnología y Futuro","volume":"90 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73062724","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: 6

Quantitative evaluation of the diagenesis and porosity evolution of tight sandstone reservoirs: A case study of the Yanchang formation in the Southern Ordos basin, China 致密砂岩储层成岩作用及孔隙演化定量评价——以鄂尔多斯盆地南部延长组为例

CT&F - Ciencia, Tecnología y Futuro Pub Date : 2019-05-10 DOI: 10.29047/01225383.148

Meng Xiao, G. Qiu, Xuanjun Yuan, Songtao Wu, Dawei Cheng, Chunfang Chen

{"title":"Quantitative evaluation of the diagenesis and porosity evolution of tight sandstone reservoirs: A case study of the Yanchang formation in the Southern Ordos basin, China","authors":"Meng Xiao, G. Qiu, Xuanjun Yuan, Songtao Wu, Dawei Cheng, Chunfang Chen","doi":"10.29047/01225383.148","DOIUrl":"https://doi.org/10.29047/01225383.148","url":null,"abstract":"Evaluation of the pore evolution is key to gaining a better understanding of oil migration and accumulation in tight oil exploration for tight sandstone; to study the diagenesis and porosity evolution of tight sandstone reservoirs, we analysed the 8th member of the Yanchang Formation by core observation, thin section observation, cathodoluminescence, scanning electron microscopy, and logging data analysis. The following conclusions can be drawn (1) In the typical tight sandstone reservoir, numerous secondary pores developed at burial depths in the range of 1300 m to 1400 m, and approximately 1500 m to 1600 m. (2) Compaction was the most influential factor of reservoir density and decreased the average pore size by 24.8%. Carbonate cementation decreased the porosity by 8.2%. The most important diagenetic process for increasing the reservoir porosity was dissolution, which increased the pore size by 5.1%. In addition, chlorite played an active role in inhibiting secondary quartz growth and preserving primary pores. (3) The early gas invasion can inhibit diagenesis, and the organic acids produced by the later oil can increase dissolution, so that the high oil saturation phenomenon becomes more obvious.","PeriodicalId":10745,"journal":{"name":"CT&F - Ciencia, Tecnología y Futuro","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76723929","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

Reverse Time Migration in Euclidean and Riemannian coordinates 欧几里得坐标和黎曼坐标中的逆时偏移

CT&F - Ciencia, Tecnología y Futuro Pub Date : 2019-05-10 DOI: 10.29047/01225383.157

César-Augusto Arias Chica, Luis-Fernando Duque-Gómez, Juan-Guillermo Paniagua-Castrillón

引用次数: 0

Assessment of a surfactant- polymer formulation for conditions in a Colombian field 哥伦比亚某油田条件下表面活性剂-聚合物配方的评价

CT&F - Ciencia, Tecnología y Futuro Pub Date : 2019-05-10 DOI: 10.29047/01225383.152

Fabián Andrés Tapias Hernández, R. Moreno

{"title":"Assessment of a surfactant- polymer formulation for conditions in a Colombian field","authors":"Fabián Andrés Tapias Hernández, R. Moreno","doi":"10.29047/01225383.152","DOIUrl":"https://doi.org/10.29047/01225383.152","url":null,"abstract":"The surfactant-polymer (SP) process is one of the Chemical Enhanced Oil Recovery (CEOR) methods used in the industry. It has been continuously studied; however, it is still a challenge for the petroleum industry due to the difficulty to design the solution to be injected and forecast process performance. This paper is intended to contribute to the design of fluids used in an SP process based on some previously known properties and conditions. Hence, reservoir and fluid properties of a Colombian Field were used as reference parameters to select the polymer and surfactant. Then, the effects of salts, temperature, and surfactant on tailor-made polymer solutions were determined through a rheological study. Ostwald-de Waele and Carreau-Yasuda models adjusted the measured viscosity data against shear rate, while Arrhenius equation fitted viscosity values at 7,8 s-1 against temperature. The surfactant performance was analyzed using phase behavior tests, and the Chun Huh equations determined the interfacial tension (IFT) values. The Bancroft’s rule was used as a qualitative verification tool of the kind of micro- emulsion formed. From rheology, we concluded that the viscous modulus is predominant for all polymer solutions, and the fluid thickness is reduced due to the presence of divalent cations and raise on temperature, salts or surfactant concentration. On the other hand, the observed phase behavior corresponded to a transition Winsor II to I without finding any Winsor III micro-emulsion. Therefore, some criteria were proposed to select the optimal conditions. For the desired conditions, the reduction of IFT reached values ranging in magnitudes of 10-3 to 10-4 [mN/m]. These values are usually associated with an improved oil recovery factor.","PeriodicalId":10745,"journal":{"name":"CT&F - Ciencia, Tecnología y Futuro","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89563436","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: 3

Methodology to define hydrocarbon potential in a shale reservoir based on geochemical data and well logs 基于地球化学数据和测井资料确定页岩储层油气潜力的方法

CT&F - Ciencia, Tecnología y Futuro Pub Date : 2019-05-10 DOI: 10.29047/01225383.147

Ludy Amparo Gutiérrez Torres, Luz Diana Molina Gómez, Helena Margarita Ribón Barrios, Aristóbulo Bejarano, T. M. J. Lemus

{"title":"Methodology to define hydrocarbon potential in a shale reservoir based on geochemical data and well logs","authors":"Ludy Amparo Gutiérrez Torres, Luz Diana Molina Gómez, Helena Margarita Ribón Barrios, Aristóbulo Bejarano, T. M. J. Lemus","doi":"10.29047/01225383.147","DOIUrl":"https://doi.org/10.29047/01225383.147","url":null,"abstract":"The office U.S. Energy Information Administration (EIA) has suggested significant volumes of hydrocarbon resources in unconventional Shale type reservoirs, which happens to be very interesting nowadays. \u0000The complexity of these reservoirs, along with the high level of risk during the exploration stage, and the lack of laboratory data, are challenging for an adequate estimation of hydrocarbon volumes in shale reservoirs. An innovative methodology to estimate prospective resources on a Shale reservoir is proposed in this paper, based on petrophysical and geochemical data from well logs, such as porosity, hydrocarbon saturation, TOC (total organic content), gas content, thermal rock maturity, clay fraction, thickness, rock density, etc, all of them using Monte Carlo simulation. \u0000Further, this paper proposes a new way of interpreting petrophysical data to obtain a clearer view of reservoir characterization, especially Brittleness, which is of great relevance to define the potential of fracturing and hydrocarbon production. The methodology was applied to the Tablazo Formation in the Middle Magdalena Valley Basin (MMVB) in Colombia. The results show a total best estimate of oil in place (OOIP) of 51 637 Bls/acre, gas adsorbed in place 39.72 Mcf/acre, and free gas in place of 177.18 MCF/acre. Comparing these results with those obtained by applying other methodologies, the best estimates of oil in place is 146 933 Bls/acre, gas adsorbed in situ 40.57 MCF/acre, and free gas in place of 504.07 Mcf/acre. Data reported in the literature, on the same area, corroborate these results. \u0000To conclude, with this methodology a new approach is achieved for estimating prospective resources in Shale reservoirs with better results using the Monte Carlo simulation.","PeriodicalId":10745,"journal":{"name":"CT&F - Ciencia, Tecnología y Futuro","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74597611","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

Photocatalytic degradation of hydrocarbons present in water, using Fe (III) modified TiO2 Fe (III)修饰TiO2光催化降解水中碳氢化合物

CT&F - Ciencia, Tecnología y Futuro Pub Date : 2019-05-10 DOI: 10.29047/01225383.156

Paula Catalina Velosa Alfonso, Andrés Felipe Loaiza Carreño, César Augusto Ramírez Segura

引用次数: 2

A new database of on-road vehicle emission factors for Colombia: A case study of Bogotá 哥伦比亚道路车辆排放因子新数据库:以波哥大<e:1>为例研究

CT&F - Ciencia, Tecnología y Futuro Pub Date : 2019-05-10 DOI: 10.29047/01225383.154

Jhonathan Ramírez, Jorge E. Pachón, O. Casas, Sandro Faruc González

{"title":"A new database of on-road vehicle emission factors for Colombia: A case study of Bogotá","authors":"Jhonathan Ramírez, Jorge E. Pachón, O. Casas, Sandro Faruc González","doi":"10.29047/01225383.154","DOIUrl":"https://doi.org/10.29047/01225383.154","url":null,"abstract":"Mobile sources contribute directly or indirectly with most of the atmospheric emissions in Colombian cities. Quantification of mobile source emissions rely on emission factors (EF) and vehicle activity. However, EF for vehicles in the country have not evolved at the same time as fleet renovation and fuel composition changes in the last few years. In fact, estimated EF before 2010 may not reflect the reduction of sulfur content in diesel and the renovation and deterioration of passenger vehicles; therefore, emission levels may be over or under estimated. To account for these changes, we have implemented the MOVES model in Bogota and obtained a new database of on-road vehicle emission factors. For this purpose, local information of activity rates, speed profiles, vehicle population distribution and age, meteorology and fuel composition was used. Emissions were estimated with these new set of EF and compared with previous inventories. We observed large reductions in SO2 (-87%), CO (-65%) and VOC (-62%) emissions from mobiles sources and lower reductions in NOx (-20%). Other pollutants such as PM2.5 (+15%) and CO2 (+28%) reported increases. This paper includes a new database of on-road vehicle emission factors for Bogota, which can be applied in other Colombian cities in the absence of local data.","PeriodicalId":10745,"journal":{"name":"CT&F - Ciencia, Tecnología y Futuro","volume":"36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80920101","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: 10