Results 91 to 100 of about 5,239 (198)
Simulation of Wellbore Stability during Underbalanced Drilling Operation
Journal of Applied Mathematics, 2017 The wellbore stability analysis during underbalance drilling operation leads to avoiding risky problems. These problems include (1) rock failure due to stresses changes (concentration) as a result of losing the original support of removed rocks and (2 ...
Reda Abdel Azim
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Strengthening shale wellbore with silica nanoparticles drilling fluid
Petroleum, 2016 Nanoparticles have been widely used to reduce wellbore instability problems of shale formation. In this paper, nanoparticle-containing water-based drilling fluids (WBDFs) and oil-based drilling fluids (OBDFs) were evaluated by running three new tests ...
Yili Kang +4 more
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Simulation of Geological Carbon Dioxide Storage
, 2008 We modifed a streamlined-based simulator based on the work of Batycky et al. (1997) [7] to solve CO2 transport in aquifers and oil reservoirs. We then use this to propose design strategy for CO2 injection to maximise storage in aquifers and to maximise
Qi, Ran, Qi, Ran
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An intelligent algorithm for identifying dropped blocks in wellbores
Natural Gas Industry BReal-time monitoring of wellbore stability during drilling is crucial for the early detection of instability and timely interventions. The cause and type of wellbore instability can be identified by analyzing the dropped blocks brought to the surface by ...
Qian Wang +4 more
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Wellbore stability analysis to determine the safe mud weight window for sandstone layers
Petroleum Exploration and Development, 2019 The wellbore stability of a vertical well through the sandstone reservoir layers of the Asmari oil-bearing formation in south-west Iran is investigated. The safe drilling-fluid density range for maintaining wellbore stability is determined and simulated ...
Ayoub DARVISHPOUR +3 more
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Determination of Optimum Mud Weight Window for Tanuma Formation in Southern Iraq
Journal of EngineeringProblems with borehole instability contribute to an increase in non-productive time, mostly when drilling shale rocks. Drilling in this layer has several issues, including mud loss, tight holes, mechanically stuck pipes, caving, and large holes ...
Hussien Luqman Abd +1 more
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External review of the storage plan for the Peterhead Carbon Capture and Storage Project [PDF]
, 2014 This document summarises the findings of an external independent review of the storage plan for the proposed Peterhead Carbon Capture and Storage project which aims to store up to 20 million tonnes (Mt) of CO2 within the framework of the European ...
Chadwick, A. +9 more
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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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Wellbore shrinkage during drilling in methane hydrate reservoirs
Energy Science & Engineering, 2019 Methane hydrates as a clean and abundant energy source, have attracted the attention of the world. However, the instability of hydrate reservoirs makes it difficult to drill production wells.
Chuanliang Yan +6 more
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Принципи вибору компоновок низу бурильної колони для буріння похилих ділянок свердловин [PDF]
, 2014 Розглянуто модель вибору багатоопорних компоновок низу бурильної колони (КНБК) для буріння похилих ділянок свердловин, наведено принципи побудови оцінок ризику в умовах інформаційної невизначеності.
Долик, Р. М. +1 more
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