Oil Well Drilling Fluids
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Study of Continuous Rheological Measurements in Drilling Fluids
Abstract Drilling an oil well involves using drilling fluids that perform cleaning and cooling functions, but that most importantly maintain the fluids of the geological formation contained by hydraulic pressure. A fundamental role in predicting the hydraulic pressure of the well consists of monitoring the fluid’s rheological behavior. This paper summarize
Braz. J. Chem. Eng.. Publicado em: 2017-07
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2. Rheological Characterization of Bentonite Dispersions with Xanthan for Oil Well Drilling Fluids
Shear tests using a coaxial cylinders viscometer were performed in order to determine the rheological and thixotropic properties of xanthan gum dispersions with sodium bentonite in the presence of high salt concentrations of sodium and calcium chlorides. The dispersions rheology with different temperatures and concentrations of NaCl, CaCl2 and xanthan gum we
Mat. Res.. Publicado em: 05/06/2017
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3. SMART MONITORING AND DECISION MAKING FOR REGULATING ANNULUS BOTTOM HOLE PRESSURE WHILE DRILLING OIL WELLS
Abstract Real time measurements and development of sensor technology are research issues associated with robustness and safety during oil well drilling operations, making feasible the diagnosis of problems and the development of a regulatory strategy. The major objective of this paper is to use an experimental plant and also field data, collected from a basi
Braz. J. Chem. Eng.. Publicado em: 2016-12
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4. Estudo do comportamento PVT de misturas de metano e fluidos de perfuração base éster / Study of the PVT behavior of methane and ester based drilling fluids mixtures
During conventional drilling operations, it is necessary to maintain the wellbore pressure greater than the reservoir pore pressure, otherwise a kick may occur. If the well control procedure is not effective during the circulation of the formation influx out of the well, a blowout could happen, which is a dangerous event concerning safety and environmental i
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/06/2010
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5. Modelagem de controle de poço com fluidos de perfuração não aquosos e estudos de casos / Nonaqueous drilign fluid well control modeling and case studies
O trabalho apresenta uma revisão da literatura sobre poços HPHT, abordando o desafio na construção dos mesmos, com ênfase no aspecto de segurança de poço. Do ponto de vista de desenvolvimento, o trabalho envolveu a implementação de um modelo de controle de poços com fluidos de perfuração não aquosos em software existente (Unikick), que incorpora
Publicado em: 2008
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6. CFD predictions of drilling fluid velocity and pressure profiles in laminar helical flow
Fluid flow in annular spaces has received a lot of attention from oil industries, both in drilling operations and in petroleum artificial rising. In this work, through numerical simulation using the computational fluid dynamics (CFD) technique, the flow of non-Newtonian fluids through the annuli formed by two tubes in concentric and eccentric arrangements of
Brazilian Journal of Chemical Engineering. Publicado em: 2007-12
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7. "Avaliação do potencial de contaminação de aqüíferos porosos a partir da perfuração de poços de petróleo utilizando fluído n-Parafina" / "Potential aquifer pollution from n-Paraffin based drilling fluids in oil wells"
Na perfuração de poços para extração de petróleo são utilizados fluidos de perfuração compostos por diversos produtos químicos com finalidades específicas em função das características de cada poço. Durante vários anos utilizou-se fluido a base de óleo diesel, devido à excelente performance proporcionada à perfuração. O aumento da preocu
Publicado em: 2006
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8. DISPLACEMENT OF NON-NEWTONIAN LIQUIDS IN ECCENTRIC ANNULI / DESLOCAMENTO DE LÍQUIDOS NÃO NEWTONIANOS EM TUBOS ANULARES EXCÊNTRICOS
In cementing processes of oil wells, the mud formerly used to drag the gravel, to lubricate and to cool the drill is removed and substituted by a cement mixture. This substitution is obtained by the displacement of a fluid by another in the annulus between the rock formation and the casing. For best results of cementing process, intermediate fluids, also cal
Publicado em: 2005
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9. LIQUID DISPLACEMENT OF IMISCIBLE FLUIDS IN TUBES: CAPILLARITY, INERCIA, VISCOSITY RATIO AND RHEOLOGICAL PROPERTY EFFECTS / DESLOCAMENTO DE FLUIDOS IMISCÍVEIS EM TUBOS: EFEITO DE CAPILARIDADE, INÉRCIA, RAZ ÃO DE VISCOSIDADES E PROPRIEDADES REOL OGICAS
There are many important processes in industry that use liquid displacement of imiscible fluids in tubes. Some practical applications include enhanced oil recovery, ce- mentation of drilling wells and coating of internal surfaces of the tubes. For a good understanding of these problems, it is extremely important to study the effect of cap-illarity,inertia an
Publicado em: 2002