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Journal articles on the topic 'Drilling'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Bhaumik, Gajjarkar, Nitin Kamble Mr., and Yogesh Kamble Mr. "A Comprehensive Review on Influence of Process Parameters by a Novel Method Form Drilling Technique." International Journal of Emerging Technologies and Innovative Research Volume 4 Issue 6, Published In: Volume 4 | Issue 6 | Year June-2017 (2017): Page No: 16–20. https://doi.org/10.5281/zenodo.806870.

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Drilling plays a very influential role in machining since more than 40% of material removal operations are associated with this type of action. Traditionally, it generates high temperature during drilling operation. Therefore, the drilling tool becomes dull and leads to a limited service life. Moreover, the workpiece materials have been hardened during drilling operation which makes the post operation troublesome. Also, the chips adhered to the exit of a drilled hole destruction the surface quality and deteriorates the drilling precision. To eliminate this difficulty form drilling established.

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2

Yue, Qian Sheng, Qing Zhi Yang, Shu Jie Liu, Bao Sheng He, and You Lin Hu. "Rheological Properties of Water Based Drilling Fluid in Deep Water Drilling Conditions." Applied Mechanics and Materials 318 (May 2013): 507–12. http://dx.doi.org/10.4028/www.scientific.net/amm.318.507.

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The rheological property of the drilling fluid was one of the focus problems in deep-water drilling, which was widely concerned. In the article, the viscosity-temperature properties of commonly used water soluble polymeric solution, polymeric brine solution, bentonite slurry, polyacrylamide-potassium chloride drilling fluid with different densities and water-base drilling fluid systems commonly used for China offshore well drillings were studied. 4°C-to-20°C viscosity ratio and 4°C-to-20°C YP ratio were used to judge the thickening level of drilling fluids due to low temperature. The experimen

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3

Wen, Yan Liang, Guo Jian Zhang, and Zhi Qiang Zhang. "Numerical Experiments of Drilling Pressure Relief Preventing Roadway Rock Burst." Applied Mechanics and Materials 353-356 (August 2013): 1583–87. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.1583.

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Based on rock burst mechanism and the present research situation of control technique, pressure relief process of drilling to rock burst roadway is modeled by numerical simulation software, the contrast and analysis of stress field of surrounding rock are put up with and without pressure relief. The results of the calculation indicate that after drilling high stress area on the both sides of the roadway reduces obviously, but stress peak increases and its position is not converted into the deep areas evidently. It is the energy of the high stress area that makes the rock mass between the drill

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4

Akbar, Muhammad Sjahid, and Kestrilia Rega P. "Perbandingan Model Data Hilang dengan Model Least Median Square (LMS) pada Optimasi Respon Ganda menggunakan Metode Generalized Reduced Gradient (GRG) (Kasus Penggurdian Komposit Karbon)." Sains & Teknologi 2, no. 1 (2019): 63. http://dx.doi.org/10.24123/jst.v2i1.2246.

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Epoxy drillings have consequences the chisel will worn down and drilling result vary greatly. This research purpose is to minimize the chisel wearing out and drilling result deviation with generalized reduce gradient method (GRG). advantage of the method can to look for weighted from both response. This method Applied to outlier data for the chisel wearing out. Research result are more take note of the chisel wearing out than drilling result deviation and optimum condition to machine speed is 715,5 rpm, scrape speed is 90 mm/min, chisel angel is 73,8o with the chisel wearing out is 0,3253 mm a

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5

RAHIM, E. A., S. SHARIF, Z. A. AHMAD, A. S. MOHRUNI, and I. A. SYED. "Machinability Investigation when Drilling Titanium Alloys(Drilling technology)." Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2005.2 (2005): 553–57. http://dx.doi.org/10.1299/jsmelem.2005.2.553.

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6

Szalma, József, Ole Klein, Bálint Viktor Lovász, Edina Lempel, Sára Jeges, and Lajos Olasz. "Recommended Drilling Parameters of Tungsten Carbide Round Drills for the Most Optimal Bone Removals in Oral Surgery." BioMed Research International 2018 (November 19, 2018): 1–10. http://dx.doi.org/10.1155/2018/3108581.

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Background. High temperatures during drilling can cause thermal osteonecrosis and abnormal wound healing. According to our best knowledge, a widely accepted recommendation for optimal drilling parameters in routine oral surgery bone removals does not exist. Purpose. Our aim was to investigate the correlations of different drilling parameters, including axial load and revolution speed on drilling temperatures and preparation times. Materials and Methods. Standard, 5 mm deep cavities were drilled in 20 PCF (lb/ft3) dens polyurethane blocks with 3 mm (50PCF) cortical layer using new and worn, 3.1

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7

Schwander, J., S. Marending, T. F. Stocker, and H. Fischer. "RADIX: a minimal-resources rapid-access drilling system." Annals of Glaciology 55, no. 68 (2014): 34–38. http://dx.doi.org/10.3189/2014aog68a015.

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AbstractDetermining the expected age at a potential ice-core drilling site on a polar ice sheet generally depends on a combination of information from remote-sensing methods, estimates of current accumulation and modelling. This poses irreducible uncertainties in retrieving an undisturbed ice core of the desired age. Although recently perfected radar techniques will improve the picture of the ice sheet below future drilling sites, rapid prospective drillings could further increase the success of deep drilling projects. Here we design and explore a drilling system for a minimum-size rapid-acces

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8

Augustin, L., H. Motoyama, F. Wilhelms, et al. "Drilling comparison in ‘warm ice’ and drill design comparison." Annals of Glaciology 47 (2007): 73–78. http://dx.doi.org/10.3189/172756407786857820.

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AbstractFor the deep ice-core drilling community, the 2005/06 Antarctic season was an exciting and fruitful one. In three different Antarctic locations, Dome Fuji, EPICA DML and Vostok, deep drillings approached bedrock (the ice–water interface in the case of Vostok), emulating what had previously been achieved at NorthGRIP, Greenland, (summer 2003 and 2004) and at EPICA Dome C2, Antarctica (season 2004/05). For the first time in ice-core drilling history, three different types of drill (KEMS, JARE and EPICA) simultaneously reached the depth of ‘warm ice’ under high pressure. After excellent p

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9

Vieira, Yesus Emmanuel Medeiros, Renata Albergaria de Mello Bandeira, and Orivalde Soares da Silva Junior. "Application of a Logit Model for Water well site location in fractured-bedrock aquifers in northeastern Brazil." International Journal for Innovation Education and Research 10, no. 8 (2022): 33–52. http://dx.doi.org/10.31686/ijier.vol10.iss8.3854.

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Wells drilling process in fractured-bedrock aquifers is a difficult task. Extreme variations in lithology and structure features, as well productive water zones sited at preferential points make geological and geophysical investigations difficult. To contribute to the understanding of the process of groundwater zones occurrence in fractured-bedrock aquifers, this paper develops a drilling prospective model by using regression analysis, whose parameters were calibrated according to the photogeological and cartographic analysis of 113 drilling points in the states of Rio Grande do Norte, Paraíba

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10

Manik, Nijusiho, Fathur Rozi, and Esterina Natalia Painda. "ANALISIS PENGARUH PENAMBAHAN PAC-R TERHADAP KARAKTERISTIK RHEOLOGY LUMPUR PEMBORAN YANG TERKONTAMINASI BATUBARA." PETROGAS: Journal of Energy and Technology 7, no. 1 (2025): 62–72. https://doi.org/10.58267/petrogas.v7i1.189.

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ABSTRACTThe success of drilling activities is greatly influenced by drilling mud. Coal contamination in drilling mud will damage the mud’s performance in carrying out it function during drilling operations. Coal contamination in drilling mud can affect a number of physical properties of drilling mud such as density, rheology properties, and filtration loss. To maintain the performance of the drilling mud due to coal contamination in drilling activities, it is necessary to add Polyanionic Cellulose - Refined (PAC-R). Based on the reasearch results, the effect of coal contamination 1%, 2%, 3%, a

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11

Liu, Gang, Dou Mei, and Jialin Zhang. "A Method Based on SVM Algorithm for Wellbore Collision Monitoring: Using Vibration Signal Characteristics of Bit Drilling in Different Mediums." International Journal of Signal Processing Systems 8, no. 2 (2020): 42–48. http://dx.doi.org/10.18178/ijsps.8.2.42-48.

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During well drilling operations of offshore oil and gas exploration, the progress that bit drills through rocks, steel casing and other mediums produces vibration signal with different characteristics. In this work, we presented a wellbore collision monitoring method that using vibration signal produced by bit penetrating in different drilling mediums to identify those unwanted cases that bit is colliding into adjacent wellbores in drilling operation. Firstly, experiments have been carried out to acquire vibration signal of bit drilling in sorts of rock, cement and steel casing mediums. Then,

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12

Zhang, Guang Wei, Li You, and Zhao Li. "The Finite Element Analysis of a Shaft." Advanced Materials Research 712-715 (June 2013): 1022–26. http://dx.doi.org/10.4028/www.scientific.net/amr.712-715.1022.

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Finite element method is a kind of method with the aid of computer engineering analysis of discretization numerical calculation. In the rotary steering drilling during the process of practical work, there was a great drilling pressure torque, space size limit strictly and requires a high efficiency and reliability .The working conditions are complex when drillings work underground and the working environment is harsh, there may has many unpredictable situations, the drilling tool may encounter the loose soil, or may be a hard rock, and these changes force is transmitted through the variation c

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13

PODO MAHAMAT MATAR, AMINE KARIFENE, and MACKAYE HASSAN TAISSO. "Lineaments as a tool for decision-making in the optimal location of boreholes in the base zone: Case of the department of Abtouyour (republic of Chad)." GSC Advanced Research and Reviews 15, no. 3 (2023): 157–70. http://dx.doi.org/10.30574/gscarr.2023.15.3.0191.

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This study has made it possible to highlight that the extraction of structural lineaments helps in the optimal decision-making in the implantation of boreholes in the basement zone. For this purpose, we used remote sensing, as a complementary tool in the extraction of structural lineaments and validated our results with the drillings carried out using electrical tomography carried out in the area. This semi-automatic method allowed us to understand the importance that remote sensing can play in the establishment of successful drilling in the basement zone. For this study we used software such

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14

PODO, MAHAMAT MATAR, KARIFENE AMINE, and HASSAN TAISSO MACKAYE. "Lineaments as a tool for decision-making in the optimal location of boreholes in the base zone: Case of the department of Abtouyour (republic of Chad)." GSC Advanced Research and Reviews 15, no. 3 (2023): 157–70. https://doi.org/10.5281/zenodo.8269162.

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This study has made it possible to highlight that the extraction of structural lineaments helps in the optimal decision-making in the implantation of boreholes in the basement zone. For this purpose, we used remote sensing, as a complementary tool in the extraction of structural lineaments and validated our results with the drillings carried out using electrical tomography carried out in the area. This semi-automatic method allowed us to understand the importance that remote sensing can play in the establishment of successful drilling in the basement zone. For this study we used software such

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15

Wilhelms, Frank, Heinrich Miller, Michael D. Gerasimoff, et al. "The EPICA Dronning Maud Land deep drilling operation." Annals of Glaciology 55, no. 68 (2014): 355–66. http://dx.doi.org/10.3189/2014aog68a189.

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AbstractWe report on the EPICA Dronning Maud Land (East Antarctica) deep drilling operation. Starting with the scientific questions that led to the outline of the EPICA project, we introduce the setting of sister drillings at NorthGRIP and EPICA Dome C within the European ice-coring community. The progress of the drilling operation is described within the context of three parallel, deep-drilling operations, the problems that occurred and the solutions we developed. Modified procedures are described, such as the monitoring of penetration rate via cable weight rather than motor torque, and modif

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16

Mensa-Wilmot, Graham. "Technology Focus: Bits and Bottomhole Assemblies (December 2020)." Journal of Petroleum Technology 72, no. 12 (2020): 52. http://dx.doi.org/10.2118/1220-0052-jpt.

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Achieving and sustaining performance drilling’s intended benefits - improved drilling efficiency with minimal down-hole tool failures and the associated reductions in project cycle time and operational costs - requires new protocols in drilling-system analysis. Drilling-system components [bits, reamers, bottomhole assemblies (BHAs), drive systems, drilling parameters, and hydraulics] must be analyzed independently for their relevance on the basis of application types and project challenges. Additionally, the drilling system must undergo holistic evaluations to establish functional compatibilit

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17

Gao, Wen Long. "Casing Drilling Technology to Drilling Site." Applied Mechanics and Materials 214 (November 2012): 63–66. http://dx.doi.org/10.4028/www.scientific.net/amm.214.63.

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Oil development is an important industry of modern construction, for the entire socio-economic development of great significance. The continuous development of all regions of the oil used for exploration and drilling technology have given the stringent requirements, construction problems if the operation would cause serious consequences. Casing Drilling technology is the focus of the entire construction; this paper analyzes the use of technology in the drilling site, and put forward some reasonable proposals to raise the level of promotion of the construction site.

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18

Hoshino, Masashi. "Drilling fluid for deep water drilling." Journal of the Japanese Association for Petroleum Technology 68, no. 5 (2003): 397–403. http://dx.doi.org/10.3720/japt.68.397.

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19

Tretyak, Alexander Ya, Andrey A. Chumakov, and Kirill V. Krivosheev. "Drilling fluid for drilling permafrost rocks." Bulletin of the Tomsk Polytechnic University Geo Assets Engineering 335, no. 9 (2024): 24–30. http://dx.doi.org/10.18799/24131830/2024/9/4761.

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Relevance. The article provides an overview of the problem of drilling wells for oil and gas in conditions of permafrost. When constructing wells for various purposes in conditions of permafrost rocks, special requirements are imposed on the selection of the optimal drilling fluid. Deposits in the permafrost zone have significant differences from conditions where rocks have a positive temperature. Aim. For permafrost conditions, the choice of optimal drilling technology plays an important role. The temperature of the drilling fluid during drilling should be equal to the temperature of the rock

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20

Kędzierski, Miłosz, Sławomir Wysocki, Rafał Wiśniowski, Małgorzata Uliasz, and Grzegorz Zima. "Drilling mud for shale gas drilling." AGH Drilling, Oil, Gas 32, no. 3 (2015): 503. http://dx.doi.org/10.7494/drill.2015.32.3.503.

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21

Li, Zhong, Lai Bin Zhang, Fan Luo, Bai Ling Zhang, and Shu Ying Tan. "Mechanical Property Analysis of Materials and Application of Buttress Thread Buckle Marine Conductor." Advanced Materials Research 233-235 (May 2011): 2043–46. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.2043.

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At present, offshore drilling operations often use buttress thread casing as surface casing. The design conception of buttress thread casing comes from the offshore drilling’s demands and this kind of casing is mainly used as surface casing. This paper has taken material mechanical experiment, numerical simulation analysis and field test, the research results show that the various parameters of buttress thread casing fully complies with the drilling design requirements and the offshore oilfield production demands. This product can reduce drilling cost effectively, improve working efficiency an

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22

GARZONIO, ROBERTO, BIAGIO DI MAURO, DANIELE STRIGARO, et al. "Mapping the suitability for ice-core drilling of glaciers in the European Alps and the Asian High Mountains." Journal of Glaciology 64, no. 243 (2017): 12–26. http://dx.doi.org/10.1017/jog.2017.75.

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ABSTRACTIce cores from mid-latitude mountain glaciers provide detailed information on past climate conditions and regional environmental changes, which is essential for placing current climate change into a longer term perspective. In this context, it is important to define guidelines and create dedicated maps to identify suitable areas for future ice-core drillings. In this study, the suitability for ice-core drilling (SICD) of a mountain glacier is defined as the possibility of extracting an ice core with preserved stratigraphy suitable for reconstructing past climate. Morphometric and clima

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Kohantorabi, Mostafa, Amirhooman Hemmasi, Mohammad Talaeipour, Mehran Roohnia, and Behzad Bazyar. "Effect of artificial inhomogeneity of density and drilling on dynamic properties developed by poplar block species (Populus nigra) jointed with oak wood (Quercus castaneifolia) beams." BioResources 15, no. 3 (2020): 4711–26. http://dx.doi.org/10.15376/biores.15.3.4711-4726.

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Inhomogeneities in wood and wood products are evident. Sometimes these inhomogeneities are combined with other inhomogeneities such as drilling. Each can have different effects on dynamic properties, and these footprints can cause hidden defects in wood and wood products. In this research, the effects of artificial inhomogeneity of density and drilling diameters (1 mm, 3 mm, 5 mm, and 10 mm) on dynamic properties of the beams produced from oak wood jointed with poplar blocks (one at the end and the other at the central part of the beam) were investigated. Free vibration on a free-free beam tes

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24

Król, Kazimierz, Krzysztof Olejarczyk, Marcin Wikło, Zbigniew Siemiątkowski, and Krzysztof Kołodziejczyk. "Individuality dynamic system drilling head – pipe drilling – shaft during drilling deep hole." Mechanik, no. 3 (March 2015): 190/1–190/6. http://dx.doi.org/10.17814/mechanik.2015.3.110.

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25

Holland, Dutch, David M. Pritchard, and Pradeep Anand. "Seven Drilling Myths - Managing Successful Drilling Operations." Journal of Petroleum Technology 55, no. 09 (2003): 44–48. http://dx.doi.org/10.2118/0903-0044-jpt.

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26

An, Byoung-Ky, and Hyun-Jung Oh. "Semi-submersible Drilling Rig and Drilling Equipment." Journal of Ocean Engineering and Technology 26, no. 6 (2012): 86–92. http://dx.doi.org/10.5574/ksoe.2012.26.6.086.

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27

SUN, Hao, and Kazuomi KUSUMOTO. "Drilling Performance of Plasma Arc Drilling Method." QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY 28, no. 4 (2010): 421–26. http://dx.doi.org/10.2207/qjjws.28.421.

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28

Zazarli Shah, Mohamad Safwan, Arina Sauki, Wan Zairani Wan Bakar, Nurul Aimi Ghazali, and Azlinda Azizi. "Drilling Fluid Design for Shale Gas Drilling." Advanced Materials Research 1113 (July 2015): 617–24. http://dx.doi.org/10.4028/www.scientific.net/amr.1113.617.

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Shale gas nowadays is an important source of unconventional gas. The limited conventional gas supply makes the unconventional sources as a new source of gas. In this research, the aim is to design a mud formulation that can carry out essential functions of mud for shale gas drilling. Commonly for shale gas drilling, water based mud is used. However, water based mud is ineffective when dealing with water-sensitive shale. The alternative way to deal with this type of shale is using synthetic-based mud (SBM) or oil-based mud (OBM). OBM is an effective mud while drilling well. However, it is toxic

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29

Bybee, Karen. "Drilling-Fluid Rheology Under Deepwater Drilling Conditions." Journal of Petroleum Technology 51, no. 11 (1999): 36–39. http://dx.doi.org/10.2118/1199-0036-jpt.

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30

Khojibergenov Davlatbek Turganbekovich, Yanyushkin Aleksandr Sergeyevich, Khozhibergenova Umida Davlatbekkyzy, Ibragimova Zaure Assilbekovna, Sherov Karibek Tagayevich, and Absadykov Bakhyt Narikbayevich. "DRILLING TOOL WITH NEGATIVE DRILLING FORCE VALUE." NEWS of National Academy of Sciences of the Republic of Kazakhstan 1, no. 433 (2019): 169–75. http://dx.doi.org/10.32014/2019.2518-170x.21.

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31

Barhate, Abhijit, Piyush Patel, and Egil Abrahamsen. "Real-time drilling optimisation – driving drilling excellence." APPEA Journal 59, no. 1 (2019): 196. http://dx.doi.org/10.1071/aj18231.

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Here we explore a real-time solution that anticipates drilling events and avoid delays caused by such issues as poor hole cleaning, higher torque and drag, swab and surge, stuck pipe, lost circulation, formation damage and wellbore instability. This is important if drilling optimisation is a major technical and corporate goal or if you wish to go beyond the traditional approach of collecting real-time data only to monitor operations. The presented state-of-the-art ‘real-time drilling optimisation’ solution creates a dynamic, real-time picture of the entire wellbore and key drilling variables a

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32

Panichaporn, Weerapong, Ruktai Prurapark, and Kitipat Siemanond. "Simulation of Drilling Pressure Profile in Directional Drilling and User Program Development." International Journal of Materials, Mechanics and Manufacturing 3, no. 4 (2015): 255–60. http://dx.doi.org/10.7763/ijmmm.2015.v3.206.

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33

dos Reis, Alcione, Rosemar Batista da Silva, Lucas Gonçalves Silva, et al. "Analyses of two manufacturing systems in drilling of CGI: drilling and reaming × drilling." International Journal of Advanced Manufacturing Technology 106, no. 7-8 (2020): 2861–74. http://dx.doi.org/10.1007/s00170-019-04833-5.

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34

Molepo, Maketo, Erik Hohmann, Sinmiloluwa Oduoye, Jolandie Myburgh, Reinette van Zyl, and Natalie Keough. "TRANSCORACOID DRILLING FOR CORACOCLAVICULAR LIGAMENT RECONSTRUCTIONS IN PATIENTS WITH ACROMIOCLAVICULAR JOINT DISLOCATIONS RESULT IN ECCENTRIC TUNNELS." Orthopaedic Proceedings 105-B, SUPP_15 (2023): 21. http://dx.doi.org/10.1302/1358-992x.2023.15.021.

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This study aimed to describe the morphology of the coracoid process and determine the frequency of commonly observed patterns. The second purpose was to determine the location of inferior tunnel exit with superior based tunnel drilling and the superior tunnel exit with inferior based tunnel drilling.A sample of 100 dry scapulae for the morphology aspect and 52 cadaveric embalmed shoulders for tunnel drilling were used. The coracoid process was described qualitatively and categorized into 6 different shapes. A transcoracoid tunnel was drilled at the centre of the base. Twenty-six shoulders were

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Kobrzyńska, Karolina, Kuba Jakubowski, and Piotr Kanty. "Analiza kalibracji wyników sondowań CPT z próbnymi odwiertami kolumn przemieszczeniowych CMC." Przegląd Naukowy Inżynieria i Kształtowanie Środowiska 27, no. 2 (2018): 175–85. http://dx.doi.org/10.22630/pniks.2018.27.2.17.

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The issue of calibration of the CPT results with test drillings of controlled modulus columns (CMC) columns is widely used in Poland, due to the analogy of drilling parameters for this type of geotechnical research. The values and types of drilling parameters used to correct perform of the calibration depend on the type of the machine executing displacement columns. The issue of calibration is accompanied by problems and technical details that may determine its proper performance. Presentation of three theoretical approaches to searching for one parameter corresponding to the cone resistance c

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36

Hamanaka, Ryo, Toshiro Emori, Mizuki Ohama, Kana Yamamoto, Yui Horiguchi, and Noriaki Yoshida. "The Impact of Drilling Guide Length of a Surgical Guide on Accuracy of Pre-Drilling for Miniscrew Insertion." Applied Sciences 14, no. 1 (2023): 177. http://dx.doi.org/10.3390/app14010177.

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Background: Temporary anchorage devices (TADs) are broadly used in orthodontic treatment. TADs must be placed accurately to avoid collision against tooth roots. To place miniscrews with a higher accuracy, a digitally designed surgical guide was proposed in previous studies. However, to our knowledge, there have been no articles that have assessed the minimal required length to achieve good drilling accuracy. The objective of the present study was to evaluate the accuracy of pre-drilling using computer-aided designed surgical guides with different lengths. Methods: A typodont model was scanned,

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37

Tran, Chung Van. "SELECTING A PROPER TECHNOLOGICAL PROCESS USING REVERSE SYSTEM DRILLING METHOD FOR GROUNDWATER EXPLOITATION IN SOUTHERN VIETNAM." Science and Technology Development Journal 12, no. 6 (2009): 73–83. http://dx.doi.org/10.32508/stdj.v12i6.2256.

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Reverse circulation drilling is one of the most effective drilling method on drilling of high capacity water supply wells in soft sedimentary aquifer. Technological process of reverse system are: - Counter flush drilling system - Suction drilling system. - Suction jet drilling system - Air-lift drilling system Based on drilling theory and reality of applying of RC drilling method, all the RC drilling systems will be analyzed for choosing the suitable system for Nambo area.

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38

Toka, Bülent. "Choosing the composition of a drilling fluid containing partially hydrolyzed polyacrylamides (PHPA) for core drillings." Bulletin Of The Mineral Research and Exploration 176, no. 176 (2025): 1–2. https://doi.org/10.19111/bulletinofmre.1624183.

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In core (diamond) drilling operations, the controlling of drilling fluid’s rheological and filtration properties within specific value ranges is essential to ensure effective well cleaning and the maintenance of both mechanical and chemical equilibrium within the well. Furthermore, the additives in the fluid contribute significantly to improving core recovery efficiency. Partially hydrolyzed polyacrylamides (PHPA), known for their ability to encapsulate formations and drill cuttings to prevent the interaction of active clays with water, are also recognized for their effectiveness in improving

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39

Al-hlaichi, Saif K., Faleh H. M. Al-Mahdawi, and Jagar A. Ali. "Drilling Optimization by Using Advanced Drilling Techniques in Buzurgan Oil Field." Iraqi Journal of Chemical and Petroleum Engineering 24, no. 2 (2023): 53–64. http://dx.doi.org/10.31699/ijcpe.2023.2.6.

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Efficient and cost-effective drilling of directional wells necessitates the implementation of best drilling practices and advanced techniques to optimize drilling operations. Failure to adequately consider drilling risks can result in inefficient drilling operations and non-productive time (NPT). Although advanced drilling techniques may be expensive, they offer promising technical solutions for mitigating drilling risks. This paper aims to demonstrate the effectiveness of advanced drilling techniques in mitigating risks and improving drilling operations when compared to conventional drilling

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40

Bower, Bruce. "Mystery Drilling." Science News 169, no. 14 (2006): 213. http://dx.doi.org/10.2307/4019171.

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41

Linden, Eugene. "Drilling deep." New Scientist 255, no. 3399 (2022): 25. http://dx.doi.org/10.1016/s0262-4079(22)01438-5.

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42

Stewart, Alison. "Joseph Drilling." Art Bulletin 70, no. 1 (1988): 141. http://dx.doi.org/10.2307/3051161.

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43

TANAKA, SHOICHI. "Scientific drilling." Journal of the Japanese Association for Petroleum Technology 52, no. 5 (1987): 466–77. http://dx.doi.org/10.3720/japt.52.466.

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Hofer, Ursula. "Drilling deeper." Nature Reviews Microbiology 11, no. 8 (2013): 508–9. http://dx.doi.org/10.1038/nrmicro3071.

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Farrell, John. "Drilling Crew." Oceanography 19, no. 4 (2006): 123. http://dx.doi.org/10.5670/oceanog.2006.22.

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Cooper, George A. "Directional Drilling." Scientific American 270, no. 5 (1994): 82–87. http://dx.doi.org/10.1038/scientificamerican0594-82.

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Sweet, William. "Drilling Directions." IEEE Spectrum 49, no. 11 (2012): 92. http://dx.doi.org/10.1109/mspec.2012.6341231.

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HESS, GLENN. "DRILLING CHEMICALS." Chemical & Engineering News 87, no. 33 (2009): 28–29. http://dx.doi.org/10.1021/cen-v087n033.p028.

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HESS, GLENN. "ARCTIC DRILLING." Chemical & Engineering News Archive 84, no. 4 (2006): 10. http://dx.doi.org/10.1021/cen-v084n004.p010.

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Blackman, R. A. A. "Drilling wastes." Marine Pollution Bulletin 21, no. 5 (1990): 257–58. http://dx.doi.org/10.1016/0025-326x(90)90352-9.

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