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Dissertations / Theses on the topic 'Underbalanced drilling (Petroleum engineering)'

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Published: 4 June 2021

Last updated: 28 July 2025

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1

Ozer, Ceren. "Hydraulics Optimization Of Foam Drilling In Drilling Operations." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/2/12611059/index.pdf.

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ABSTRACT HYDRAULICS OPTIMIZATION OF FOAM DRILLING IN DRILLING OPERATIONS &Ouml<br>zer, Ceren M. Sc., Department of Petroleum and Natural Gas Engineering Supervisor: Assoc. Prof. Dr. Evren &Ouml<br>zbayoglu September 2009, 72 pages In drilling, drilling fluid affects every single step of operation. If rig system is thought as the human body, drilling mud can be defined as the blood system of it. Drilling fluid carries the cuttings, cools the bit, it conditions the hole and so on. Some special kinds of drilling fluids are used for special purposes such as underbalanced drilling. Underbalanced dr

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2

Sigurjonsson, Kjartan Örn. "Dual gradient drilling simulations." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for petroleumsteknologi og anvendt geofysikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18362.

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The system studied in this thesis is called the Low Rise Return system and uses a partly filled marine drilling riser with a variable mud level which is used control the bottom holes pressure.Initially main components of the Low Riser Return System are listed and explained. Then the performance characteristics of the system are explored. Level movements in riser during level increase and decrease at constant mud pump rates are explained along with the effect of mud pump rate on maximum level increase and decrease rates.A simple simulator is then presented that calculates the bottom hole pressu

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3

Song, Jinze. "Limit of Horizontal Wellbore in Extended Reach Drilling with Gas." Thesis, University of Louisiana at Lafayette, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1585874.

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<p> The limit of drilling ERD comes from the excessive friction between the drill string and borehole. This study investigates the potential of increasing the limit of horizontal displacement through optimization of drilling fluid and bottom hole assemblies. We conclude that lubricating bottom hole with water can significantly increase the maximum permissible WOB. This effect is more pronounced in drilling tight sands than shales with gas. Cooling the bottom hole with gas expansion after bit nozzles can greatly increase the maximum permissible WOB in drilling formations with geothermal tempera

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4

Cai, Xiao. "An Analytical Method for Predicting Wellbore Temperature Profile During Drilling Gas Hydrates Reservoirs." Thesis, University of Louisiana at Lafayette, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10163276.

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<p> Production of natural gas from unconventional gas-hydrate reservoirs faces kinds of challenges and uncertainties. One of the main and most common problems in gas-hydrates drilling is the dissociated gas from gas hydrates with decrease of pressure, increase of temperature, or combination of them. A reliable method that can be applied to predict the temperature profile of fluid during circulating in the drilling pipe and the annulus is needed. An analytical model was developed in this study for predicting temperature profiles in drilling gas-hydrate deposits. A case study is provided and ind

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5

Ettehadi, Osgouei Reza. "Determination Of Cuttings Transport Properties Of Gasified Drilling Fluids." Phd thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612676/index.pdf.

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The studies conducted on hole cleaning have been started with single phase drilling fluids for vertical holes in 1930&rsquo<br>s, and have reached to multiphase drilling fluids for directional and horizontal wells today. The influence of flow rate and hole inclination on cuttings transport has been well understood, and many studies have been conducted on effective hole cleaning either experimentally or theoretically. However, neither the hydraulic behavior nor the hole cleaning mechanism of gasified drilling fluids has been properly understood. The aims of this study are to investigate and ana

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6

Ezekiel, Ekerette Elijah. "EXPERIMENTAL STUDY OF DRILLING MUD RHEOLOGY AND ITS EFFECT ON CUTTINGS TRANSPORT." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for petroleumsteknologi og anvendt geofysikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-19792.

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7

Leamon, Gregory Robert Petroleum Engineering Faculty of Engineering UNSW. "Petroleum well costs." Awarded by:University of New South Wales. School of Petroleum Engineering, 2006. http://handle.unsw.edu.au/1959.4/30599.

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This is the first academic study of well costs and drilling times for Australia???s petroleum producing basins, both onshore and offshore. I analyse a substantial database of well times and costs sourced from government databases, industry and over 400 recent well completion reports. Three well phases are studied - Pre-Spud, Drilling and Completion. Relationships between well cost factors are considered, including phase time, phase cost, daily cost, rig day rate, well depth, basin, rig type, water depth, well direction, well objective (e.g. exploration), and type of completion (P&A or producer

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8

PICARD, NICOLAS. "DEVELOPMENT OF NOVEL HYDRAULICS FOR OIL WELL DRILLING." University of Cincinnati / OhioLINK, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1025637714.

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9

Al-Awad, Musaed Naser J. "Physico-chemical analysis of shale-drilling fluid interaction and its application in borehole stability studies." Thesis, Heriot-Watt University, 1994. http://hdl.handle.net/10399/1368.

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Shale is often the most difficult of all formations to maintain a stable wellbore in when drillincr ::> for oil and gas. Time and money spent overcoming this problem during drilling, together with overall reduced profit margins. has led the oil industry to devote considerable time and effort to solve the problem of unstable boreholes in shales. It has long been established that the moisture adsorption (or desorption) of shale rocks can be controlled by the salinity of drilling fluid. When compacted shale (under constant compaction stress) adsorbs moisture, its total volume increases and swelli

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10

Eikås, Inger Kamilla. "Influence of Casing Shoe Depth on Sustained Casing Pressure." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for petroleumsteknologi og anvendt geofysikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18650.

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In 2006 the Petroleum Safety Authority Norway (PSA) performed a well integrity survey. The survey indicated that about 20 % of wells on the Norwegian Continental shelf (NCS) may suffer from well integrity issues. Most of the problems were related to deficiency in annulus safety valve, tubing, cement and casing. Pressure build-up in annulus, i.e. sustained casing pressure, is one of the main indicators of a significant well integrity problem. Increased understanding on the field may help engineers to design wells with better integrity in the future. This thesis describes SCP and its most common

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11

Acosta, Carla. "Model for Kick Tolerance." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for petroleumsteknologi og anvendt geofysikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-19251.

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Kick Tolerance is an important factor in the industry, that allows drilling engineers to establish several parameters in the development phase of a well, such as casing depths, open hole lengths, etc. It can also be considered a valuable safety factor to prevent well control problems.Several different definitions and calculation approaches were found for this term, and when you have something as dynamic and fast-paced as it is the oil & gas industry it is an important issue, since this lack of standardization leads to confusion and miscommunication.In chapter 3 and 4 the current calculatio

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12

Ismayilov, Orkhan. "Application of 3-D Analytical Model for Wellbore Friction Calculation in Actual wells." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for petroleumsteknologi og anvendt geofysikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-19398.

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With the increasing number of drilled ultra-extended reach wells and complex geometry wells, the drilling limitation caused by excessive torque and drag forces must be further investigated. The wellbore friction being a main limiting factor in extended reach well needs to be studied with the new developed models.This master thesis presents an application of the new 3-dimentional analytical model developed by Bernt S. Aadnøy in the synthetic test and four real wells. Quite diverse wellbore trajectory and depth has been chosen for a better evaluation and comparison of the model with the me

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13

Al-Muraikhi, Ahmed J. "Evaluation of vertical multiphase flow correlations for Saudi Arabian field conditions." Dhahran, Saudi Arabia : King Fahd University of Petroleum and Minerals, 1989. http://library.kfupm.edu.sa/lib-downloads/1381127.pdf.

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14

Okuchaba, Boma Jeremiah. "Development of a model to calculate mechanical specific energy for air hammer drilling systems." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2804.

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15

Oluwadairo, Tolulope. "An evaluation of subsea pump technologies that can be used to achieve dual gradient drilling." [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-2571.

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16

Prado, Mauricio Gargaglione. "A block implicit numerical solution technique for two-phase multidimensiaonal steady state flow /." Access abstract and link to full text, 1995. http://0-wwwlib.umi.com.library.utulsa.edu/dissertations/fullcit/9523266.

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17

Chipindu, Njalo Socrates Chipongue. "Pos-analise em problemas de perfuração de poços maritimos de desenvolvimento." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263688.

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Orientadores: Celso Kazuyuki Morooka, Jose Ricardo Pelaquim Mendes, Kazuo Miura<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica, Instituto de Geociências<br>Made available in DSpace on 2018-08-15T22:58:32Z (GMT). No. of bitstreams: 1 Chipindu_NjaloSocratesChipongue_M.pdf: 4694196 bytes, checksum: 6b99e27328776d4bdf9d03833efef6f0 (MD5) Previous issue date: 2010<br>Resumo: Os problemas na perfuração de poços de petróleo são responsáveis pela maior parte dos tempos não produtivos, elevando assim os custos diários das operações. Portanto, o estudo

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18

Ibeh, Chijioke Stanley. "Investigation on the effects of ultra-high pressure and temperature on the rheological properties of oil-based drilling fluids." [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-2569.

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19

Guan, Linhua. "Evaluation of a statistical infill candidate selection technique." Texas A&M University, 2003. http://hdl.handle.net/1969/207.

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20

Oliveira, Gabriel Merhy de. "Modelagem da propagação de pressão no reinício do escoamento de fluidos de perfuração não gelificados." Universidade Tecnológica Federal do Paraná, 2011. http://repositorio.utfpr.edu.br/jspui/handle/1/302.

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Prêmio Petrobrás de Tecnologia, CNPq<br>O reinício do escoamento do fluido de perfuração é um grande problema em águas profundas e em poços de grande extensão como os do pré-sal. Dependendo da geometria do poço e de propriedades do fluido, picos de pressão significativos podem ocorrer comprometendo a estrutura do poço. O presente trabalho apresenta um modelo matemático para o escoamento compressível e transitório com o objetivo de prever a transmissão de pressão ao longo do poço e os picos de pressão durante o reinício do escoamento. O modelo baseia-se nas equações de conservação da massa e da

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21

Ifekaibeya, Walter Nkemjika. "Estudo da influência da taxa de penetração de broca de perfuração nos custos da construção de poços de petróleo." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263342.

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Orientadores: José Ricardo Pelaquim Mendes, Kazuo Miura<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica e Instituto de Geociências<br>Made available in DSpace on 2018-08-19T05:58:26Z (GMT). No. of bitstreams: 1 Ifekaibeya_WalterNkemjika_M.pdf: 2900574 bytes, checksum: e8d362a13403f80acfb2bf870662e5fd (MD5) Previous issue date: 2011<br>Resumo: Na área de petróleo & gás, devido aos altos custos das sondas utilizados nas atividades de perfuração no mar, o aumento da velocidade de execução das operações torna-se imprescindível. A necessidade de se

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22

Sevillano, Lucas Cantinelli 1988. "Estudo da movimentação de uma plataforma de perfuração flutuante com BOP suspenso pelo riser." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263672.

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Orientadores: Celso Kazuyuki Morooka, José Ricardo Pelaquim Mendes<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica e Instituto de Geociências<br>Made available in DSpace on 2018-08-23T17:19:38Z (GMT). No. of bitstreams: 1 Sevillano_LucasCantinelli_M.pdf: 9484221 bytes, checksum: c1488e4aff7e2c8acffb33128f7b1944 (MD5) Previous issue date: 2013<br>Resumo: A localização de descobertas recentes de campos de petróleo em águas ultraprofundas torna as operações de descida e de recolhimento de equipamentos submarinos até a cabeça do poço demoradas. Est

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23

Chagas, Bruno Luiz Barbosa das 1986. "Estudo dos principais parâmetros da confiabilidade de falha por fadiga de riser marítimo de perfuração." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/321433.

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Orientador: Celso Kazuyuki Morooka<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica e Instituto de Geociências<br>Made available in DSpace on 2018-08-30T02:08:44Z (GMT). No. of bitstreams: 1 Chagas_BrunoLuizBarbosadas_M.pdf: 3797109 bytes, checksum: 1ef50f3d002aa234dbe301fd26044c8f (MD5) Previous issue date: 2015<br>Resumo: O presente trabalho tem como objetivo principal avaliar a probabilidade de falha por fadiga em um riser de perfuração. Os parâmetros mais importantes são identificados e sua influência na probabilidade de falha é analisada. D

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24

Karamanov, Anton. "Utilization of Horizontal-Axis Tidal Stream Turbines As a Main Power Supply System On Offshore Remote Oil&Gas Platforms." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-263161.

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The master's thesis contains 97 pages, 29 tables, 33 figures and 43 sources of literature. The paper presents a study on increasing the efficiency of the power supply of remote offshore oil and gas facilities through the use of horizontal-axial tidal stream turbines. A general theoretical description of floating semi-submersible drilling rigs and a more detailed description of semi-submersible drilling unit 6000/200 type "Shelf" are presented. A theoretical description of various devices that transform the kinetic energy of water into electric power is also presented, and horizontal-axial tida

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25

Kim, Nilo Ricardo 1962. "Estudo do comportamento PVT de misturas de metano e fluidos de perfuração base éster." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265558.

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Orientador: Paulo Roberto Ribeiro<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Campinas e Instituto de Geociências<br>Made available in DSpace on 2018-08-16T17:51:26Z (GMT). No. of bitstreams: 1 Kim_NiloRicardo_D.pdf: 2190309 bytes, checksum: 800a179162b994dcdbb3d67d40a0605a (MD5) Previous issue date: 2010<br>Resumo: Durante uma perfuração convencional, a pressão dentro do poço deve ser sempre maior do que a pressão de poros do reservatório, sob pena da possibilidade de haver um kick, que é a invasão indesejada de fluidos da formação para o poço. Proced

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26

Silva, Italo Guimaraes Medeiros da. "POLYMERIC MATERIALS FOR ENVIRONMENTAL APPLICATIONS IN THE OIL AND GAS INDUSTRY." Case Western Reserve University School of Graduate Studies / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=case160709776258431.

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27

Filardo, Juarez Guaraci. "Metodologia para dimensionamento de recursos de poços de petróleo." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263668.

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Orientador: Celso Kazuyuki Morooka<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica e Instituto de Geociências<br>Made available in DSpace on 2018-08-22T07:36:07Z (GMT). No. of bitstreams: 1 Filardo_JuarezGuaraci_M.pdf: 9792292 bytes, checksum: fc41bb8bdaac74a7d5124bbc10c3f37b (MD5) Previous issue date: 2012<br>Resumo: Este trabalho apresenta a solução para o problema das empresas de petróleo em determinar os quantitativos ótimos de recursos materiais a serem adquiridos para a construção dos poços de petróleo num ambiente de risco, assegurando o

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28

Silva, Luciano da. "Análise modal e controle de plataformas offshore sujeitas a perturbações persistentes." Pós-Graduação em Engenharia Elétrica, 2014. https://ri.ufs.br/handle/riufs/5020.

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A exploração offshore tem crescido muito nos últimos anos e grandes estruturas e equipamentos têm sido projetados e construídos para remover o óleo que se encontra abaixo da superfície do mar. Para plataformas offshore fixas tipo jaqueta é necessário analisar os problemas decorrentes da exposição dessas instalações ao ambiente hostil do oceano. Estas perturbações induzem vibrações excessivas nas estruturas, afetando o conforto e a estabilidade da instalação, e para combater essas vibrações uma ferramenta matemática foi utilizada para monitorar o estado da integridade da estrutura, a Transform

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29

Payne, Michael Lyle. "Drilling bottom-hole assembly dynamics." Thesis, 1992. http://hdl.handle.net/1911/19083.

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A mathematical model is proposed for studying the dynamic behavior of drillstrings, focusing on the lower section of the drillstring known as the bottom-hole assembly or "BHA". In parallel, a comprehensive assessment of existing concepts and techniques for addressing drillstring dynamics is undertaken. Accounting for stiffness, damping, and inertial properties of the BHA and by incorporating appropriate excitations and boundary conditions, the dynamic characteristics of the BHA can be analyzed. The representation of the BHA stiffness is influenced by the underlying beam formulation assumptions

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30

Noynaert, Samuel F. "AIMR (Azimuth and Inclination Modeling in Realtime): A Method for Prediction of Dog-Leg Severity based on Mechanical Specific Energy." Thesis, 2013. http://hdl.handle.net/1969.1/151316.

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Since the 1980’s horizontal drilling has been a game-changing technology as it allowed the oil and gas industry to produce from reservoirs previously considered marginal or uneconomic. However, while it is considered a mature technology, directional drilling is still done in a reactive fashion. Although many directional drillers are quite adept at predicting the directional response of the bottomhole assembly (BHA) in a given well, the ability to manage all of the drilling parameters on a foot by foot basis while accurately predicting the effects of each parameter is impossible for the human

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31

Willcott, Ashley Paul. "Reducing the risk in drilling production wells : a multidisciplinary approach /." 2005.

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(11191893), Jose Alejandro Solorio Cervantes. "Smart Sensing System for a Lateral Micro Drilling Robot." Thesis, 2021.

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The oil and gas industry faces a lack of compact drilling devices capable of performing horizontal drilling maneuvers in depleted or abandoned wells in order to enhance oil recovery. The purpose of this project was to design and develop a smart sensing system that can be later implemented in compact drilling devices used to perform horizontal drilling to enhance oil recovery in wells. A smart sensor is the combination of a sensing element (sensor) and a microprocessor. Hence, a smart sensing system is an arrangement that consists of different sensors, where one or more have smart capabilities.

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Jo, Hyunil 1977. "Mechanical behavior of concentric and eccentric casing, cement, and formation using analytical and numerical methods." 2008. http://hdl.handle.net/2152/18066.

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The first main goal of this research is to develop comprehensive analytical and numerical models for the stress distribution around an inclined cased wellbore by considering all wellbore processes and to amend erroneous models of most previous work. The second main goal is to apply the developed models to explain near wellbore phenomena such as cement failure and sand production. To achieve these goals, this work checked the eligibility of using simple elastic approaches for the system by using a poroelastic undrained condition and a steady state condition for stresses induced by wellbore temp

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