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WELLBORE INSTABILITY: CAUSES AND CONSEQUENCES [PDF]
Rudarsko-geološko-naftni Zbornik, 2007 Wellbore instability is one of the main problems that engineers meet during drilling. The causes of wellbore instability are often classified into either mechanical (for example, failure of the rock around the hole because of high stresses, low rock ...
Borivoje Pašić +2 more
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Modeling wellbore instability in hot dry rock under various temperature conditions
Unconventional Resources, 2023 Hot Dry Rock (HDR) is a renewable energy source that has garnered attention due to its abundant reserves, widespread distribution, and consistent energy supply.
Yu Suo +4 more
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Iraqi Geological Journal, 2021 Wellbore instability in the Zubair oil field is the main problem in drilling operations. This instability of the wellbore causes several problems including poor hole cleaning, tight hole, stuck pipe, lost circulation, bad cementing, and well kick or ...
Abbas Dakhiel
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Wellbore Instability Prediction by Geomechanical Behavioral Modeling in Zilaie Oil Field [PDF]
Journal of Petroleum Science and Technology, 2023 Wellbore instability is a critical problem during oil and gas reservoirs’ drilling and production phase, for which analytical, numerical, experimental, and field methods have been widely discussed.
Amin Tohidi +2 more
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Analysis of Wellbore Stability considering the Interaction between Fluid and Shale
Geofluids, 2023 Reservoir shale has the characteristics of bedding planes, strong anisotropy, and strong imbibition ability under ultralow water saturation, which has an important impact on wellbore stability of horizontal wells.
Long Chang +7 more
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Iraqi Geological Journal, 2023 Wellbore instability is a main challenge and contribute to suspending the drilling operations that lead to over-well time, known as Non-productive time (NPT).
Ahmed Kareem, Faleh Almahdawi
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Constitutive Behavior of Wellbore Cement [PDF]
, 2023 Cement is one of the most integral components of a wellbore, yet minimal experimental research has been done to understand the basic processes as to what ensures a cement sheaths’ success.
Cedola, Alexandra
core
Assessment of Chemical Effects on Wellbore Stability in Transition Shale Formation
Geofluids, 2022 Substantial research has been conducted on the mechanisms responsible for the wellbore collapse in shale formations. For chemically active soft shale formations, pore pressure and stress change due to osmotic pressure and hydration swelling are usually ...
Hai Lin +4 more
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Geofluids, 2023 During oil and gas exploitation, wellbore stability has always been the focus of many scholars. Instability of wellbore will lead to washouts, breakout, stuck pipe, mud loss, and so on, even the abandon of the well.
Linjie Qiu, Min Zhang, Yansen Wang
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An integrated wellbore stability study to mitigate expensive wellbore instability problems while drilling into Zubair shale/sand sequence, southern Iraq [PDF]
, 2020 ”The Zubair Formation is the most prolific reservoir in Iraq, which is comprised of sandstones interbedded with shale sequences. Due to the weak nature of the shale sequence, the instability of a wellbore is one of the most critical challenges that ...
Abbas, Ahmed Khudhair
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