Oil well drill bit failure during pull out: Redesign to reduce its consequences

Cirimello, Pablo; Otegui, J.L.; Sánchez, Jesús Martínez; Carfi, Guillermo

doi:10.1016/j.engfailanal.2017.09.020

Cited by 9 publications

(5 citation statements)

References 9 publications

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“…The cyclic loading or stresses could either be fully reversed, repeated or fluctuating loads. Moreover, these loadings are either low cycle or high cycles (Liu et al, 2015;Cirimello et al, 2018 and. Casing fatigue failure could occur when the well exhibit alternating temperatures during production.…”

Section: Fatigue Failurementioning

confidence: 99%

Casing structural integrity and failure modes in a range of well types - A review

Mohammed

Oyeneyin

Atchison

et al. 2019

Journal of Natural Gas Science and Engineering

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This paper focus on factors attributing to casing failure, their failure mechanism and the resulting failure mode. The casing is a critical component in a well and the main mechanical structural barrier element that provide conduits and avenue for oil and gas production over the well lifecycle and beyond. The casings are normally subjected to material degradation, varying local loads, induced stresses during stimulation, natural fractures, slip and shear during their installation and operation leading to different kinds of casing failure modes. The review paper also covers recent developments in casing integrity assessment techniques and their respective limitations.The taxonomy of the major causes and cases of casing failure in different well types is covered. In addition, an overview of casing trend utilisation and failure mix by grades is provided. The trend of casing utilisation in different wells examined show deep-water and shale gas horizontal wells employing higher tensile grades (P110 & Q125) due to their characteristics. Additionally, this review presents casing failure mixed by grades, with P110 recording the highest failure cases owing to its stiffness, high application in injection wells, shale gas, deep-water and high temperature and high temperature (HPHT) wells with high failure probability. A summary of existing tools used for the assessment of well integrity issues and their respective limitations is provided and conclusions drawn.

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Section: Fatigue Failurementioning

confidence: 99%

Casing structural integrity and failure modes in a range of well types - A review

Mohammed

Oyeneyin

Atchison

et al. 2019

Journal of Natural Gas Science and Engineering

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“…The basic division remains according to the method of rock disintegration. Practically all available technologies are used to implement drilling operations, which allows for the necessary tests and measurements during drilling to obtain the required geological or mining information [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

The Proposal of a Method for Rock Classification Using a Vibration Signal Propagated during the Rotary Drilling Process

Stehlíková,

Bogdanovská,

Flegner

et al. 2023

Applied Sciences

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This research aims to classify rock types based on the vibration signal propagated from the experimental rotary drilling process, where the generated vibration signal is a source of information. Its measurement and processing provide important information about the rock disintegration process, the drilled rock, the drilling tool, and the drilling parameters. For the design of a suitable classification method, several attributes of the vibration signal were calculated for two different signal recording lengths. A cluster dendrogram, an ANOVA test, and a boxplot were used to determine attributes and proper signal length. The classification rule was found using a decision tree, a machine-learning tool. This publication gradually describes the process of creating the classification method and the results of the reliability verification of the proposed classification method. The disintegrated rocks were andesite, granite, limestone, and concrete used as artificial rock. This proposed method classified these three rock types and concrete with a reliability of 100% from a vibration signal record lasting 1/4 s.

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“…The basic division remains the division according to the method of rock disintegration. Practically all available technologies are used to implement drilling operations, which allows for carrying out the necessary tests and measurements during drilling to obtain the required geological or mining information [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Rock Classification Using a Vibration Signal in the Process of Rotary Drilling

Stehlíková,

Bogdanovská,

Flegner

et al. 2023

Preprint

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The paper proposes a rock classification method using the vibration signal of the rotary drilling process. This proposed method classifies four rocks with a reliability of 100 %, from the vibration signal record of a lasting 1/4 second. For the design of a suitable classification method, several attributes of the vibration signal were calculated for two different signal recording lengths. Cluster dendrogram, ANOVA test, and boxplot were used to determine useful attributes and proper signal length. The classification rule was found using a decision tree, machine learning tool. The publication gradually describes the process of creating the classification method and the results of the reliability verification of the proposed classification method. Rock disintegration by rotary drilling was carried out under standardized experimental conditions. The disintegration rocks were andesite, granite, limestone, and concrete.

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Oil well drill bit failure during pull out: Redesign to reduce its consequences

Cited by 9 publications

References 9 publications

Casing structural integrity and failure modes in a range of well types - A review

Casing structural integrity and failure modes in a range of well types - A review

The Proposal of a Method for Rock Classification Using a Vibration Signal Propagated during the Rotary Drilling Process

Rock Classification Using a Vibration Signal in the Process of Rotary Drilling

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