Propylene in a purity degree above 99.5% (polymer purity grade- PPG) is a first-generation basic petrochemical that represents a vital link in refining-petrochemical integration. The strict specification of the product and the need to maximize the energy efficiency of the propylene/propane distillation process poses several challenges to the optimization of both the design and operation of the plant. Using a Petro-SIM (KBC) technology, a polymer grade general model from a propylene distillation unit was developed by means of vapor recompression. The sensitivity for feeding with different propylene fractions was analyzed, reaching a value of 0.94, which is considered the minimum propylene fraction in the feed required to the tower to generate a product with polymer purity grade. Based on the data obtained in the simulation, the tower was designed and evaluated by means of vapor recompression, showing a potential alternative way to obtain propylene at polymer grade which could be cost saving in industrial processes.
{"title":"DESIGN AND EVALUATION OF A SYSTEM TO OBTAIN POLYMER GRADE PROPYLENE BY MEANS OF VAPOR RECOMPRESSION DISTILLATION","authors":"M. Fontana, L. Fernandes, T. A. Souza","doi":"10.5419/bjpg2019-0027","DOIUrl":"https://doi.org/10.5419/bjpg2019-0027","url":null,"abstract":"Propylene in a purity degree above 99.5% (polymer purity grade- PPG) is a first-generation basic petrochemical that represents a vital link in refining-petrochemical integration. The strict specification of the product and the need to maximize the energy efficiency of the propylene/propane distillation process poses several challenges to the optimization of both the design and operation of the plant. Using a Petro-SIM (KBC) technology, a polymer grade general model from a propylene distillation unit was developed by means of vapor recompression. The sensitivity for feeding with different propylene fractions was analyzed, reaching a value of 0.94, which is considered the minimum propylene fraction in the feed required to the tower to generate a product with polymer purity grade. Based on the data obtained in the simulation, the tower was designed and evaluated by means of vapor recompression, showing a potential alternative way to obtain propylene at polymer grade which could be cost saving in industrial processes.","PeriodicalId":9312,"journal":{"name":"Brazilian Journal of Petroleum and Gas","volume":"130 1","pages":"323-332"},"PeriodicalIF":0.0,"publicationDate":"2019-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79592823","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}
R. A. Camargo, A. Ramos, D. Gatto, R. Beltrame, J. Monks
Petroleum blending is viewed as a critical optimization strategy adopted by several operations of petroleum production in the refineries around the world. A persistent problem called crude oil incompatibility occurs when the mixture of different oils lead to the formation of solid phases due to the precipitation of asphaltenes. The present work investigates the relationship between the occurrence of sludge in petroleum storage tanks and petroleum blending operations. Hildebrand solubility parameters of the oils were determined, revealing that one of the samples of petroleum analyzed is at the threshold of the asphaltene flocculation parameter, with an average of 16.1 Mpa1/2. Thus, it implies that blending operations with dissimilar petroleum feedstocks must be well planned, since they can initiate the precipitation of the asphaltenes and, consequently, the formation of sludge that accumulate and deposit as sediments inside petroleum storage tanks.
{"title":"ORGANIC DEPOSITION IN PETROLEUM STORAGE TANKS AT REFINERIES DUE TO BLENDING OPERATIONS","authors":"R. A. Camargo, A. Ramos, D. Gatto, R. Beltrame, J. Monks","doi":"10.5419/bjpg2019-0022","DOIUrl":"https://doi.org/10.5419/bjpg2019-0022","url":null,"abstract":"Petroleum blending is viewed as a critical optimization strategy adopted by several operations of petroleum production in the refineries around the world. A persistent problem called crude oil incompatibility occurs when the mixture of different oils lead to the formation of solid phases due to the precipitation of asphaltenes. The present work investigates the relationship between the occurrence of sludge in petroleum storage tanks and petroleum blending operations. Hildebrand solubility parameters of the oils were determined, revealing that one of the samples of petroleum analyzed is at the threshold of the asphaltene flocculation parameter, with an average of 16.1 Mpa1/2. Thus, it implies that blending operations with dissimilar petroleum feedstocks must be well planned, since they can initiate the precipitation of the asphaltenes and, consequently, the formation of sludge that accumulate and deposit as sediments inside petroleum storage tanks.","PeriodicalId":9312,"journal":{"name":"Brazilian Journal of Petroleum and Gas","volume":"42 1","pages":"265-274"},"PeriodicalIF":0.0,"publicationDate":"2019-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77643290","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}
When drilling an oil well, a viscous fluid is injected to aid drilling. This fluid is also responsible for removing the cuttings and maintaining structural stability of well. The rheology of this drilling fluid has a direct influence on the cleaning of the well, on the dynamics of the fluid in pipe and annular areas. Linear mathematical extrapolations for high pressure and high temperature environments can lead to rheology errors up to 75%. In this study, a finite volume model was developed to simulate the flow of a water-based mud in annular and jetting environments in the drilling environment. Annulars were made by steel pipes and permeable formations. The fluids evaluated were developed empirically with xanthan gum and bentonite clay. The numerical results are consistent with literature and represent characteristics of a Yield Power Law fluid and a Bingham plastic. A comparison was made with water, allowing a correlation between rheological effects and fluid dynamics in annular and high vorticity regions.
{"title":"NUMERICAL SIMULATION OF DRILLING FLUID BEHAVIOR IN DIFFERENT DEPTHS OF AN OIL WELL","authors":"A. F. C. Gomes, J. G. O. Marinho, J. L. L. Santos","doi":"10.5419/bjpg2019-0026","DOIUrl":"https://doi.org/10.5419/bjpg2019-0026","url":null,"abstract":"When drilling an oil well, a viscous fluid is injected to aid drilling. This fluid is also responsible for removing the cuttings and maintaining structural stability of well. The rheology of this drilling fluid has a direct influence on the cleaning of the well, on the dynamics of the fluid in pipe and annular areas. Linear mathematical extrapolations for high pressure and high temperature environments can lead to rheology errors up to 75%. In this study, a finite volume model was developed to simulate the flow of a water-based mud in annular and jetting environments in the drilling environment. Annulars were made by steel pipes and permeable formations. The fluids evaluated were developed empirically with xanthan gum and bentonite clay. The numerical results are consistent with literature and represent characteristics of a Yield Power Law fluid and a Bingham plastic. A comparison was made with water, allowing a correlation between rheological effects and fluid dynamics in annular and high vorticity regions.","PeriodicalId":9312,"journal":{"name":"Brazilian Journal of Petroleum and Gas","volume":"52 1","pages":"309-322"},"PeriodicalIF":0.0,"publicationDate":"2019-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88327015","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}
F. Curbelo, T. T. Caminha, A. Garnica, G. Melo, E. A. Araújo, J. Freitas
The objective of this work is to evaluate the effective removal of mud cake formed by drilling fluid for microemulsion-based flushing fluid. The microemulsions were prepared with vegetable castor oil, 2%wt KCl as aqueous phase, and nonionic surfactant (Ultranex NP40). Thermal stability, rheological, removal, and wettability inversion were performed to evaluate the performance of the microemulsion-based flushing fluid. Rheological tests showed that microemulsions behaved like Newtonian fluids. The best formulation of flushing fluid was 70% surfactant/25% oil phase/5% aqueous phase, with cloudy temperature at 365.25 K, removal efficiency of mud cake of 84.85 %, and high capability of wettability inversion.
{"title":"MICROEMULSION-BASED FLUSHING FLUID FOR EFFECTIVE REMOVAL OF FILTER CAKE IN WELLS CEMENTATION","authors":"F. Curbelo, T. T. Caminha, A. Garnica, G. Melo, E. A. Araújo, J. Freitas","doi":"10.5419/bjpg2019-0012","DOIUrl":"https://doi.org/10.5419/bjpg2019-0012","url":null,"abstract":"The objective of this work is to evaluate the effective removal of mud cake formed by drilling fluid for microemulsion-based flushing fluid. The microemulsions were prepared with vegetable castor oil, 2%wt KCl as aqueous phase, and nonionic surfactant (Ultranex NP40). Thermal stability, rheological, removal, and wettability inversion were performed to evaluate the performance of the microemulsion-based flushing fluid. Rheological tests showed that microemulsions behaved like Newtonian fluids. The best formulation of flushing fluid was 70% surfactant/25% oil phase/5% aqueous phase, with cloudy temperature at 365.25 K, removal efficiency of mud cake of 84.85 %, and high capability of wettability inversion.","PeriodicalId":9312,"journal":{"name":"Brazilian Journal of Petroleum and Gas","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88103142","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}
I. ‐. Gomez, K. B. Gomes, V. M. D. Oliveira, S. Mattedi, G. Simonelli, L. C. Santos, A. Lobato
Currently, the use of ionic liquids (ILs), such as catalysts and co-solvents, in the production of biodiesel commonly demands extreme operating conditions (especially temperature and / or time). Besides the environmental benefits, these compounds have versatile physical and chemical properties. Some of these compounds also possess amphiphilic features that allow them to act as surfactants and, in this case, when employed as additives in transesterification reactions, they can overcome mass transfer limitations and, consequently, the reaction rate. This work aims at studying the effects of protic ionic liquid (PIL) 2-hydroxyethylammonium hexanoate [2HEA][Hx] in the alkaline transesterification of soybean oil using methanol and a methanol/ethanol mixture. The reaction conditions were alcohol/oil molar ratio of 6:1, 1.5% (%wt/wt) KOH as the catalyst, 2% (%wt/wt) PIL as the additive, 60 °C, and 30 min reaction time. The highest mass yield was 92.72% for both pure methanol and methanol/ethanol mixture (molar ratios 5:1), since the mean was not statistically different for those two ratios.
{"title":"EFFECTS OF THE ADDITION OF [2HEA][HX] ON BIODIESEL SYNTHESIS USING METHANOL AND METHANOL/ETHANOL MIXTURE","authors":"I. ‐. Gomez, K. B. Gomes, V. M. D. Oliveira, S. Mattedi, G. Simonelli, L. C. Santos, A. Lobato","doi":"10.5419/bjpg2019-0015","DOIUrl":"https://doi.org/10.5419/bjpg2019-0015","url":null,"abstract":"Currently, the use of ionic liquids (ILs), such as catalysts and co-solvents, in the production of biodiesel commonly demands extreme operating conditions (especially temperature and / or time). Besides the environmental benefits, these compounds have versatile physical and chemical properties. Some of these compounds also possess amphiphilic features that allow them to act as surfactants and, in this case, when employed as additives in transesterification reactions, they can overcome mass transfer limitations and, consequently, the reaction rate. This work aims at studying the effects of protic ionic liquid (PIL) 2-hydroxyethylammonium hexanoate [2HEA][Hx] in the alkaline transesterification of soybean oil using methanol and a methanol/ethanol mixture. The reaction conditions were alcohol/oil molar ratio of 6:1, 1.5% (%wt/wt) KOH as the catalyst, 2% (%wt/wt) PIL as the additive, 60 °C, and 30 min reaction time. The highest mass yield was 92.72% for both pure methanol and methanol/ethanol mixture (molar ratios 5:1), since the mean was not statistically different for those two ratios.","PeriodicalId":9312,"journal":{"name":"Brazilian Journal of Petroleum and Gas","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87807272","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}
The present study assesses the effects of ethyl octanoate and ethyl oleate on the gasoline lubricity. Samples of gasoline fuel were prepared with different amounts of esters (0%, 2.5%, 5%, 10%, and 15%) and then evaluated. The lubricity tests were carried out using a High Frequency Reciprocating Test Rig (HFRR) equipment. The Wear Scar Diameter (WSD) values decreased as ester proportions increased in the samples. The percentage of lubricant film presented values above 85% for formulations with 10% and 15% ester concentration. Coefficient of friction values showed a similar behavior, they decreased as the esters fractions have increased. Results demonstrate that the esters when added to gasoline can improve the fuel lubricity.
{"title":"EVALUATION OF THE LUBRICATION OF ETHYL OLEATE AND ETHYL OCTANOATE AS GASOLINE ADDITIVE","authors":"Suzara R.C. Sena, E. Neto, C. G. Pereira","doi":"10.5419/bjpg2019-0011","DOIUrl":"https://doi.org/10.5419/bjpg2019-0011","url":null,"abstract":"The present study assesses the effects of ethyl octanoate and ethyl oleate on the gasoline lubricity. Samples of gasoline fuel were prepared with different amounts of esters (0%, 2.5%, 5%, 10%, and 15%) and then evaluated. The lubricity tests were carried out using a High Frequency Reciprocating Test Rig (HFRR) equipment. The Wear Scar Diameter (WSD) values decreased as ester proportions increased in the samples. The percentage of lubricant film presented values above 85% for formulations with 10% and 15% ester concentration. Coefficient of friction values showed a similar behavior, they decreased as the esters fractions have increased. Results demonstrate that the esters when added to gasoline can improve the fuel lubricity.","PeriodicalId":9312,"journal":{"name":"Brazilian Journal of Petroleum and Gas","volume":"115 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75716389","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}
The Electrical Submersible Pump (ESP) system is among the most widely used artificial lift methods in the world. This work studies the effects of high fluid viscosity on pressure losses of the flow in an ESP stage. A theoretical model was applied to four different flow cases. First, curves for head and pressure losses at the pump stage were generated and, based on literature formulations available in the model, as well as on adjusted empirical coefficients (for highly viscous fluids), implemented in the model. Subsequently, the heads were estimated and evaluated using experimental data and statistical analyses based on mean square error. The results showed that high fluid viscosity impacted considerably pressure losses and pump performance. In 50% of the cases studied, statistical analyses alone could estimate the head in the pump stage with good accuracy. However, in the remaining cases, it was also necessary to consider the physical behavior of the highly viscous fluids studied. The variability of the selected formulations from the literature (for pump head and pressure losses) with pump rotation, and especially with high fluid viscosity, was considerably larger than the ones found in previous studies for less viscous fluids.
{"title":"EFFECTS OF HIGH FLUID VISCOSITY ON PRESSURE LOSSES OF THE SINGLE-PHASE FLOW INSIDE AN ESP STAGE","authors":"J. Siqueira, P. Steiner, A. Bueno","doi":"10.5419/bjpg2019-0018","DOIUrl":"https://doi.org/10.5419/bjpg2019-0018","url":null,"abstract":"The Electrical Submersible Pump (ESP) system is among the most widely used artificial lift methods in the world. This work studies the effects of high fluid viscosity on pressure losses of the flow in an ESP stage. A theoretical model was applied to four different flow cases. First, curves for head and pressure losses at the pump stage were generated and, based on literature formulations available in the model, as well as on adjusted empirical coefficients (for highly viscous fluids), implemented in the model. Subsequently, the heads were estimated and evaluated using experimental data and statistical analyses based on mean square error. The results showed that high fluid viscosity impacted considerably pressure losses and pump performance. In 50% of the cases studied, statistical analyses alone could estimate the head in the pump stage with good accuracy. However, in the remaining cases, it was also necessary to consider the physical behavior of the highly viscous fluids studied. The variability of the selected formulations from the literature (for pump head and pressure losses) with pump rotation, and especially with high fluid viscosity, was considerably larger than the ones found in previous studies for less viscous fluids.","PeriodicalId":9312,"journal":{"name":"Brazilian Journal of Petroleum and Gas","volume":"16 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72622041","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}
P. D. C. Carvalho, E. Foletto, G. Dotto, C. K. O. S. Rackov, E. Neto, O. Chiavone-Filho
The production of oil and gas is usually accompanied by the production of waste water, which contains several organic pollutants. The objective of this work is to investigate the removal of organic load from synthetic oilfield produced water by adsorption process, using activated carbons from vegetable and animal origin. The synthetic oilfield produced water was constituted by a mixture of xylene, n–heptane, phenol, and NaCl in aqueous solution. The structural properties of the samples were investigated by X–ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), N2 adsorption–desorption isotherms, and scanning electron microscopy (SEM). Effects of temperature and type of adsorbent on the adsorption process were investigated. According to the results, the temperature of 25 °C was more favorable in adsorption of organic load from synthetic oilfield produced water. Pseudo–first order, pseudo–second order, and Elovich equations were able to represent the adsorption kinetics. The vegetable activated carbon delivered the best results, being the most efficient to remove the organic load due its high surface area. The adsorption capacities were 28 and 15 mgTOC g–1, for vegetable and animal activated carbons, respectively.
{"title":"REMOVAL OF ORGANIC CONTAMINANTS FROM A SYNTHETIC OILFIELD PRODUCED WATER BY ADSORPTION PROCESS USING VEGETABLE AND BONE BOVINE ACTIVATED CARBONS","authors":"P. D. C. Carvalho, E. Foletto, G. Dotto, C. K. O. S. Rackov, E. Neto, O. Chiavone-Filho","doi":"10.5419/bjpg2019-0017","DOIUrl":"https://doi.org/10.5419/bjpg2019-0017","url":null,"abstract":"The production of oil and gas is usually accompanied by the production of waste water, which contains several organic pollutants. The objective of this work is to investigate the removal of organic load from synthetic oilfield produced water by adsorption process, using activated carbons from vegetable and animal origin. The synthetic oilfield produced water was constituted by a mixture of xylene, n–heptane, phenol, and NaCl in aqueous solution. The structural properties of the samples were investigated by X–ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), N2 adsorption–desorption isotherms, and scanning electron microscopy (SEM). Effects of temperature and type of adsorbent on the adsorption process were investigated. According to the results, the temperature of 25 °C was more favorable in adsorption of organic load from synthetic oilfield produced water. Pseudo–first order, pseudo–second order, and Elovich equations were able to represent the adsorption kinetics. The vegetable activated carbon delivered the best results, being the most efficient to remove the organic load due its high surface area. The adsorption capacities were 28 and 15 mgTOC g–1, for vegetable and animal activated carbons, respectively.","PeriodicalId":9312,"journal":{"name":"Brazilian Journal of Petroleum and Gas","volume":"417 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81013567","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}
Pressure-Volume-Temperature correlations are essential for estimating the required parameters necessary for the identification of reservoir fluid properties when experimental laboratory data are not readily available. Although several models have been published for different oil fields, there is a lack of studies addressing the Brazilian pre-salt region. Hence, in this paper we compared twenty empirical correlations for the determination of the solution gas-oil ratio, oil formation-volume-factor, and under-saturated oil viscosity for Brazilian pre-salt oil samples collected from the Campos Basin region, originally evaluated by Elias and Trevisan (2016). From our statistical results, some models presented good estimation performances when compared to said reference’s results. In fact, through a statistical analysis, Al-Shammasi (2001)’s correlation proved to be the best estimation method for solution gas-oil ratio, whereas Al-Marhoun (1985) and Beal’s (1946) correlations were deemed the most accurate for the prediction of oil formation-volume-factor and under-saturated oil viscosity, respectively.
{"title":"COMPARISON OF PVT CORRELATIONS FOR PREDICTING CRUDE OIL PROPERTIES: THE BRAZILIAN CAMPOS BASIN CASE STUDY","authors":"P. V. Mangili, V. Ahón","doi":"10.5419/bjpg2019-0013","DOIUrl":"https://doi.org/10.5419/bjpg2019-0013","url":null,"abstract":"Pressure-Volume-Temperature correlations are essential for estimating the required parameters necessary for the identification of reservoir fluid properties when experimental laboratory data are not readily available. Although several models have been published for different oil fields, there is a lack of studies addressing the Brazilian pre-salt region. Hence, in this paper we compared twenty empirical correlations for the determination of the solution gas-oil ratio, oil formation-volume-factor, and under-saturated oil viscosity for Brazilian pre-salt oil samples collected from the Campos Basin region, originally evaluated by Elias and Trevisan (2016). From our statistical results, some models presented good estimation performances when compared to said reference’s results. In fact, through a statistical analysis, Al-Shammasi (2001)’s correlation proved to be the best estimation method for solution gas-oil ratio, whereas Al-Marhoun (1985) and Beal’s (1946) correlations were deemed the most accurate for the prediction of oil formation-volume-factor and under-saturated oil viscosity, respectively.","PeriodicalId":9312,"journal":{"name":"Brazilian Journal of Petroleum and Gas","volume":"59 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77494522","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}
J. M. F. Melo, J. Tenorio, A. G. Oliveira, J. P. L. Santos
The present work aims to develop a case study using the casing well interface (CWELL), developed by the Federal University of Alagoas, Brazil. Considering the well critical environment during the gas kick along with wait on cement (WOC) test and cement displacement, we sought to observe the behavior of different casing pipes regarding the stress submitted. The case study analyzes an offshore vertical well, with a water depth of 1574 meters. The well was subjected to a kick of 50 bbl and with an inflow gradient of 2.0 lb/gal. Triaxial loads were obtained through the von-Mises and American Petroleum Institute (API) envelopes, which can be used to analyze the integrity of the tubes. Through the analysis between the resistances returned by Petroleum Engineering Applications System (SAEP), it is possible to verify the possibility of failure of the tubes for each project scenario. This analysis is important for determining the sizing of the columns to obtain the best performance of the structures.
{"title":"INTEGRATED EVALUATION OF CEMENT AND KICK SCENARIOS IN OIL WELL DESIGN","authors":"J. M. F. Melo, J. Tenorio, A. G. Oliveira, J. P. L. Santos","doi":"10.5419/bjpg2019-0019","DOIUrl":"https://doi.org/10.5419/bjpg2019-0019","url":null,"abstract":"The present work aims to develop a case study using the casing well interface (CWELL), developed by the Federal University of Alagoas, Brazil. Considering the well critical environment during the gas kick along with wait on cement (WOC) test and cement displacement, we sought to observe the behavior of different casing pipes regarding the stress submitted. The case study analyzes an offshore vertical well, with a water depth of 1574 meters. The well was subjected to a kick of 50 bbl and with an inflow gradient of 2.0 lb/gal. Triaxial loads were obtained through the von-Mises and American Petroleum Institute (API) envelopes, which can be used to analyze the integrity of the tubes. Through the analysis between the resistances returned by Petroleum Engineering Applications System (SAEP), it is possible to verify the possibility of failure of the tubes for each project scenario. This analysis is important for determining the sizing of the columns to obtain the best performance of the structures.","PeriodicalId":9312,"journal":{"name":"Brazilian Journal of Petroleum and Gas","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75348052","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}
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