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Simulação numérica do escoamento particulado para o preenchimento de canal fraturado
(Universidade Tecnológica Federal do ParanáCuritibaPrograma de Pós-Graduação em Engenharia Mecânica e de Materiais, 2013-06-21)
During the drilling process, the fluid loss to formation is one of the most important players that affect the productivity of the well. When combined with high pressure gradients at the wellbore-reservoir interface, fractures ...
Modelo numérico para determinação de zonas de perda de circulação de fluido de perfuração em poços de petróleo
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Mecânica e de MateriaisUTFPR, 2017-03-31)
During oil drilling operations, the wellbore temperature profile is used when selecting well casing materials, making cementation related decisions, and, most importantly, to identify loss zones. In this work, a transient ...
Oil well drill bit failure during pull out: Redesign to reduce its consequences
(Pergamon-Elsevier Science Ltd, 2018-01)
A drill bit with polycrystalline diamond (PDC) inserts lost one of its three blades when operating in an oil well, leading to a costly failure. Operating conditions and associated stresses were analyzed, bit core material ...
Escoamento particulado com fluido não newtoniano em canal vertical e fraturado
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Mecânica e de MateriaisUTFPR, 2022-03-28)
In oil and gas exploration operations, the loss of fluid circulation is one of the main problems that interfere in the well drilling process. The presence of fractures, frequent in the reservoirs, added to the pressure ...
Simulação numérica do escoamento de fluido de lei de potência com partículas para o preenchimento de fraturas
(Universidade Tecnológica Federal do ParanáCuritibaBrasilBacharelado em Engenharia MecânicaUTFPR, 2019-12-06)
The invasion of drilling fluid from the annular region into the formation during the drilling an oil well is known as lost circulation. Besides the cost related to fluid replacement, there is a possibility of damaging the ...
Failure and integrity analysis of casings used for oil well drilling
(Pergamon-Elsevier Science Ltd, 2017-05)
Drilling with casing (DwC) is an innovative method particularly widespread in deep shale plays, that reduces the time and cost of drilling stages. However, casings are not designed for this purpose, and still the pipes and ...
Análise experimental de escoamento líquido-sólido para o controle de fuga de fluido em canal fraturado
(Universidade Tecnológica Federal do ParanáCuritibaBrasilGraduação em Engenharia MecânicaUTFPR, 2015-12-14)
The natural occurrence of faults in the rock formation or even those induced by
the drilling process can cause drilling fluid migration towards the formation. To control
the phenomenon of loss of fluid various techniques ...
Estudo experimental do preenchimento de fraturas com escoamento particulado em canal fraturado
(Universidade Tecnológica Federal do ParanáCuritibaBrasilGraduação em Engenharia MecânicaUTFPR, 2016-07-04)
The oil and gas industry is constantly seeking the improvement of techniques and processes to maintain the competitiveness of the wells operation. In the drilling process the lost circulation is one of the main phenomena ...
Modelagem e otimização de manobras em processos de perfuração de poços de petróleo e gás
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Elétrica e Informática IndustrialUTFPR, 2018-04-06)
The control of pressure gradients generated by drilling string's movements during tripping operations is a great challenge to be overcome. High axial velocities imposed on the drill string can generate sufficiently large ...
Novo método para estimativa do gradiente de fratura para poços de petróleo
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em Ciência e Engenharia do PetróleoPesquisa e Desenvolvimento em Ciência e Engenharia de Petróleo, 2010-08-13)
The development of oil wells drilling requires additional cares mainly if the drilling is in offshore
ultra deep water with low overburden pressure gradients which cause low fracture gradients and,
consequently, difficult ...