Results 91 to 100 of about 504,172 (167)
Journal of Rock Mechanics and Geotechnical EngineeringBorehole instability in naturally fractured rocks poses significant challenges to drilling. Drilling mud invades the surrounding formations through natural fractures under the difference between the wellbore pressure (Pw) and pore pressure (Pp) during ...
Yaoran Wei +6 more
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Iraqi Geological JournalWellbore instability has become an increasing concern for horizontal and extended-reach wells, especially through shale cap rocks. This paper presents a comprehensive analysis of the factors that led to the wellbore being unstable in the Tanuma ...
Hussien Abd, Hassan Abdul Hussein
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Simulação do escoamento em poços horizontais com completação não convencional [PDF]
, 2015 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2015.Este trabalho propõe uma metodologia numérica para a simulação computacional do escoamento em poços ...
Sansoni Júnior, Umberto
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Numerical modelling of wellbore behaviour in fractured rock masses
, 1999 Wellbore instability problems have been encountered in many gas and oil fields. Fractures and a high differential stress (i.e., a large difference between the principal effective stresses in the horizontal plane) are considered to be major causes of ...
Last, Nigel +7 more
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Perforation parameters consideration for stable petroleum wellbore [PDF]
, 1997 The paper describes a series of laboratory experiment to observe the effects of perforation parameters and fracture zone on the wellbore stability.
Subbiah, Surej Kumar, Samsuri, Ariffin
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Research on Wellbore Stability in Deepwater Hydrate-Bearing Formations during Drilling
EnergiesMarine gas hydrate formations are characterized by considerable water depth, shallow subsea burial, loose strata, and low formation temperatures. Drilling in such formations is highly susceptible to hydrate dissociation, leading to gas invasion, wellbore
Ting Sun, Zhiliang Wen, Jin Yang
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Modelagem do escoamento multifásico e transferência de calor em poços do pré-sal a estimativa do APB (Annular Pressure Buildup) [PDF]
, 2015 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2015Com a exploração de poços de óleo e gás em alto mar com reservatórios de alta pressão e altas ...
Hafemann, Thomas Eduardt
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Numerical Modeling of Wellbore Instability (SHEAR Failure) using Fracture Mechanics Approach
, 2013 Wellbore instabilities are responsible for 10-20% of the total drilling cost. It has been estimated that wellbore instability causes an annual economic loss of US$ 500 - 1000 million in the oil industry across the world.
Kalu, Ifeanyi Emmanuel
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INVESTIGATION OF CASING DEFORMATION DURING HYDRAULIC FRACTURING CONSIDERING WELLBORE CENTRALIZATION AND CEMENT VOIDS [PDF]
, 2018 The fast growth of shale gas development through horizontal drilling and hydraulic fracturing has expanded the extraction of hydrocarbon resources in countries such as the United States, China, and Argentina.
Mendez Restrepo, Michael Fernando
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Assessment of the failure mechanisms that leads to wellbore instability
, 2004 Debido los altos costos generados por problemas de inestabilidad durante la perforación de un pozo en el Piedemonte llanero Colombiano, se hace necesario el desarrollo de una metodología que permita disminuir las dificultades relacionadas con la ...
Mateus Tarazona, Darwin +1 more
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