Drilling Mud Flow
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. MODELING AND ANALYSIS OF UNSTEADY FLOW BEHAVIOR IN DEEPWATER CONTROLLED MUD-CAP DRILLING
Abstract A new mathematical model was developed in this study to simulate the unsteady flow in controlled mud-cap drilling systems. The model can predict the time-dependent flow inside the drill string and annulus after a circulation break. This model consists of the continuity and momentum equations solved using the explicit Euler method. The model consider
Braz. J. Chem. Eng.. Publicado em: 2016-03
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2. Controle da pressão anular de fundo durante a perfuração de poços de petróleo. 2009 / Annulus bottom-hole pressure control during oil well drilling. 2009
A non linear mathematical model (gas-liquid-solid), representing an oil well drilling system, was developed, based on mass and momentum balances, in order to implement classic control (PI), using mud pump flow rate as manipulated variable for controlling annulus bottom-hole pressure. An experimental unit was built in order to represent the control problems c
Publicado em: 2009
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3. Escolamento laminar de líquidos não-newtonianos em seções anulares: estudos de CFD e abordagem experimental
The annular flow has great importance in the oil industry, in drilling operations with cuttings removal by drilling mud and also in petroleum artificial lifting, with progressive cavity pumping systems. The constant concern about operation costs and the more frequent necessity of raising the production capacity implies in larger flow through oil wells. In th
Publicado em: 2006
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4. ESCOAMENTO DE UM LÍQUIDO PSEUDOPLÁSTICO EM ESPAÇO ANULAR COM EXCENTRICIDADE VARIÁVEL / FLOW OF PSEUDOPLASTIC FLUID IN ANNULAR WITH VARIABLE ECCENTRICITY
O estudo de escoamentos em espaço anular é de fundamental importância para o entendimento e otimização do processo de perfuração de poços. A lama de perfuração deve possuir propriedades reológicas e termofísicas tais que garantam um bom desempenho no carreamento de cascalho, na lubrificação e refrigeração das brocas, na limpeza do poço, manu
Publicado em: 2005
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5. Estudo do controle de poços em operações de perfuração em aguas profundas e ultra profundas
Well control has always been a very important issue in the oi! and gas exploitation business, since it involves money savings, people safety and environment threatening. The advancement of the exploration frontiers from onshore to offshore fields, particularly, deep and ultra-deep waters, has increased even more the relevance of kick control and blowout prev
Publicado em: 2002