Academic literature on the topic 'Underwater drilling'

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Journal articles on the topic "Underwater drilling"

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Krstulović, Nikša, Sharon Shannon, Robert Stefanuik, and Carlo Fanara. "Underwater-laser drilling of aluminum." International Journal of Advanced Manufacturing Technology 69, no. 5-8 (July 5, 2013): 1765–73. http://dx.doi.org/10.1007/s00170-013-5141-4.

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Luo, Baichun. "Feasibility study of underwater drilling robot based on razor clam." Applied and Computational Engineering 77, no. 1 (July 16, 2024): 171–76. http://dx.doi.org/10.54254/2755-2721/77/20240680.

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Razor acis lives in the low tidal area of the inner bay and thrives in the area with mild infiltration of fresh water. It uses its rhythmic contraction and foot burp and its unique anatomy to make holes. The extraordinary ability of razor clams to effectively penetrate the sediment has inspired innovation in the design of underwater drilling robots. Underwater drilling robots are currently widely used in the industrial world, such as underwater geological exploration, underwater shipwreck exploration, etc. However, the existing models of these robots mainly have a rigid structural design, which limits the flexibility of their drilling components, while their rough appearance also hinders their drilling efficiency. In response to these limitations, this paper proposes a robot with a soft, flexible body, and other enhanced functions designed to simulate a soft razor clam, replicate its peristaltic motion, minimize surface friction, and thus achieve superior drilling capability. This paper focuses on the development of software, segmented structure design, and studies designed to reduce surface friction and explore the mechanism of biomimetic motion.
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Sukach, Mykhailo. "Deepwater Well Survey Equipment." Gіrnichі, budіvelnі, dorozhnі ta melіorativnі mashini, no. 98 (December 30, 2021): 21–29. http://dx.doi.org/10.32347/gbdmm.2021.98.0301.

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With the growth in underwater construction activities, there is an increasing need for accurate seabed engineering data. Modern technology makes it possible to take samples of bottom soils with a partially disturbed structure, especially for weak silty soils and silts. Testing such samples in laboratory conditions leads to inevitable errors. Despite the constant improvement of technical means of sampling, they cannot fully replace studies of the properties of bottom soils in natural occurrence. Therefore, it became necessary to create devices for the natural study of underwater soils. The following soil investigation methods are used in deep-sea wells: stamp tests, rotational shear, penetration logging, soil cutting, pressuremetry. Drilling of underwater wells at the bottom is carried out from floating drilling rigs, consisting of a floating base and a drilling rig. Pontoons (catamarans, trimarans) and drilling ships (self-propelled and non-self-propelled) are used as a base. On the shelf, pontoons with retractable supports or a flooded base are more often used. The drilling rig with working equipment is usually placed in the center of the pontoon. The choice of drilling equipment is determined by the purpose of the work, the depth and diameter of underwater wells, the depth of the sea, the displacement of the drilling rig, the physical and mechanical properties of bottom, soil, etc. Deep-sea drilling is carried out from special vessels on which the drilling unit is mounted. Vessels with an opening bottom or a special shaft for the passage of casing and drill pipes, as well as those with retractable cantilever platforms, are used. Drilling ships and pontoons are kept in a fixed position with the help of four or six anchors attached to the bow and stern of the craft. Drilling rigs provide rotary, percussion-rotary, shock-rope, vibration, rotary suction and airlift drilling. Drilling at maximum depths in the ocean is carried out using deep-sea bottom platforms and autonomous controlled vehicles.
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Wenbin, Gu, Chen Jianghai, Wang Zhenxiong, Wang Zhihua, Liu Jianqing, and Lu Ming. "Experimental Study on the Measurement of Water Bottom Vibration Induced by Underwater Drilling Blasting." Shock and Vibration 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/496120.

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Due to the lack of proper instrumentations and the difficulties in underwater measurements, the studies about water bottom vibration induced by underwater drilling blasting are seldom reported. In order to investigate the propagation and attenuation laws of blasting induced water bottom vibration, a water bottom vibration monitor was developed with consideration of the difficulties in underwater measurements. By means of this equipment, the actual water bottom vibration induced by underwater drilling blasting was measured in a field experiment. It shows that the water bottom vibration monitor could collect vibration signals quite effectively in underwater environments. The followed signal analysis shows that the characteristics of water bottom vibration and land ground vibration induced by the same underwater drilling blasting are quite different due to the different geological environments. The amplitude and frequency band of water bottom vibration both exceed those of land ground vibration. Water bottom vibration is mainly in low-frequency band that induced by blasting impact directly acts on rock. Besides the low-frequency component, land vibration contains another higher frequency band component that induced by followed water hammer wave acts on bank slope.
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Krasil'shchikov, V. M., and V. P. �ismont. "Sealing device for underwater drilling rigs." Chemical and Petroleum Engineering 24, no. 9 (September 1988): 467–69. http://dx.doi.org/10.1007/bf01147281.

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Wang, D., X. Zhao, W. Li, X. Li, R. Zhu, and W. Wang. "The outcomes of endoscopic approach for attic cholesteatoma: underwater continuous drilling versus traditional intermittent drilling." Journal of Laryngology & Otology 135, no. 4 (March 17, 2021): 310–14. http://dx.doi.org/10.1017/s0022215121000633.

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AbstractObjectiveThis study aimed to analyse the differences between underwater continuous drilling and traditional intermittent drilling for attic cholesteatoma.MethodsThe clinical data of 61 patients with attic cholesteatoma who underwent an endoscopic approach procedure were analysed. Forty patients underwent underwater continuous drilling (group A), and 21 patients underwent traditional intermittent drilling (group B).ResultsThe operation time was 64.61 ± 12.90 minutes in group A and 79.60 ± 16.81 minutes in group B (p < 0.05). The anaesthesia time was 102.69 ± 17.93 minutes in group A and 119.82 ± 19.28 minutes in group B (p < 0.05). The dry ear time, the hearing improvement rate and the post-operative complications were no different in the two groups.ConclusionGroup A and group B had no differences in surgical outcome or hearing recovery. However, treatment in the former group resulted in a significantly shortened operation and anaesthesia time.
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NAITOU, Seiichi, Kaname YAHAGI, Rinsaku AIZAWA, and Keishi ITOU. "Development of "boom type underwater drilling machine"." Doboku Gakkai Ronbunshu, no. 373 (1986): 45–53. http://dx.doi.org/10.2208/jscej.1986.373_45.

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NAITO, Seiichi. "Development of “Boom Type Underwater Drilling Machine”." Doboku Gakkai Ronbunshu, no. 385 (1987): 148–49. http://dx.doi.org/10.2208/jscej.1987.385_148.

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Liu, Xin, Wenbin Gu, Jianqing Liu, Zhenxiong Wang, Jinglin Xu, and Tao Cao. "Investigation of the Propagation Characteristics of Underwater Shock Waves in Underwater Drilling Blasting." Shock and Vibration 2018 (2018): 1–10. http://dx.doi.org/10.1155/2018/9483756.

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During the first-stage project of the main channel of Ningbo-Zhoushan Port’s Shipu Harbor, underwater shock waves were monitored. By analyzing a typical measured pressure time history curve, the characteristics of underwater shock waves in an engineering context were obtained. We obtained a traditional exponential attenuation formula for underwater shock waves based on the measured data, simplified the model of underwater drilling blasting based on engineering practice, deduced a revised formula for underwater shock wave peak overpressure on the basis of dimensional analysis, established a linear fitting model, and obtained the undetermined coefficients of the revised formula using a linear regression analysis. In addition, the accuracies of the two formulas used to predict underwater shock wave peak overpressure and the significance order of influence and influence mechanism of factors included in the revised formula on the underwater shock wave peak overpressure were discussed.
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Fang, Jian, Qing Hua Yu, and Lu Xu. "The Underwater Project Management in 'Dong Fang' Offshore Oil Engineering." Applied Mechanics and Materials 508 (January 2014): 125–28. http://dx.doi.org/10.4028/www.scientific.net/amm.508.125.

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CNOOC laid offshore oil and natural gas pipelines for offshore drilling platforms. The engineering included laying the pipelines from offshore drilling platform to landing zone, laying the pipelines between two platforms, and installing vertical pipes for platforms. Aiming at the characteristics in the diving project management, this paper analyzes and evaluates the difficulties and risks of underwater work, puts forward the corresponding safety managements. These measures ensure the underwater operations safely and smoothly. The engineering lasts 195 days, uses 160 diving equipments, and dives 282 person-times. The total diving time is 17900 minutes, and the maximum diving depth is 70 meters.
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Dissertations / Theses on the topic "Underwater drilling"

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Gledhill, Peter L. "Cutting and deployment system development for decommissioning of underwater steel structures." Thesis, University of Aberdeen, 2012. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=196133.

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This thesis was stimulated by the requirement to decommission offshore steel structures in the North Sea Offshore Oil and Gas Industry, but applies worldwide, where Oil and Gas production has ceased. It initially shows the UK Government assessment of the scale of decommissioning in the UKCS where there are several hundred structures with associated pipelines, risers and wellheads that have to be cut into sub-structures and individual pieces and then removed. Factors other than cessation of production drive the sequence and timing of structural decommissioning, such as the price of oil &gas and what new development might require already installed infrastructure. The nature of decommissioning of underwater steel lattice structure of offshore oil platforms called ‘jackets’ and underwater infrastructure is briefly discussed with the focus on cutting. The comparison of the performance of different underwater cutting tools currently most used in decommissioning is investigated with respect to two new underwater cutting techniques not only in terms of speed of cut but also in terms of deployment time and infrastructure requirements. A number of mainstream cutting tools and deployment systems are briefly introduced to provide a background, showing the range of tools preceding those investigated in more detail in terms of cutting and deployment efficiency. During the initial cutting research it was considered that fibre lasers had developed sufficiently in terms of power density, size and cost to be applied to underwater cutting. They were considered to have potential benefits over other underwater cutting techniques due to the continually increasing power density at the cut and have the advantage of a small envelope due to the small size of the potential cutting head The potential footprint of the laser head was envisaged to be similar to that of the rotating electrode arc tool therefore the deployment issues investigated might apply to both. The later development There is little published information on underwater cutting by laser particularly for the Oil and Gas Industry except for application to cutting rock for drilling. Research has been biased towards the nuclear industry using manufacturing techniques for surface treatment and cooling to reduce stress cracking. Fibre lasers are expensive to buy and logistically difficult to rent therefore it was considered that 1.2 kW CO2 laser at the University of Aberdeen (UoA) could be employed in obtaining an insight into the cutting and deployment issues concerned. Thus, the author designed, built and tested an underwater laser cutting head that would interface to the CO2 laser and would work at different orientations, fully submerged underwater in a tank. The trials were designed to assess the relationship of cutting parameters and performance at three orthogonal attitudes underwater, (beam downward, horizontal and upward pointing) to represent the orthogonal approach to horizontal and vertical primary axis tubular members, that comprise a jacket’s construction. The cutting parameters and their effects were then analysed to determine trends, behaviour and technical issues. Although an underwater laser cutting system could use a fibre laser, the CO2 laser enabled preliminary tests to be carried out and the viability of a cutting head to be explored. In the conclusion the design and performance of the laser cutting head is assessed with respect to the performance of other main-stream underwater cutting tools developed earlier. Offshore deployment of the laser cutting head is also discussed. Recommendations for future research and development work, to enable the realisation of underwater laser cutting, are presented.
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Li, Cheng-Chang, and 李昌城. "Investigation of underwater laser drilling for brittle substrates." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/40172994126911720628.

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碩士
華梵大學
機電工程研究所
94
The aimed of this paper is to study the laser drilling technique with the water cooling-assistance for brittle substrates. The method can reduce the generation of the defects in the drilling hole relative to that of the conventional laser drilling in air. The lasers used were CO2 Laser and Nd:YAG Laser. The experimental materials were LCD Glass, alumina substrates, and silicon wafers. The substrates were immersed under water with a distance of 1mm. The quality of laser drilling for the laser parameters of power and frequency was studied. It can be found that the drilling quality of LCD glass and alumina substrate under water is much better than that from the conventional laser drilling. Underwater drilling could improve the phenomena created by non-water auxiliary technique, such as: micro-cracks and heat-affect-zone. Silicon wafer under water drilling could reduce the generation of molten slag; however, it triggered the bubble collapses around the hole. The under water drilling was applied to the trepanning single-hole drilling and matrix-hole drilling successfully. The minimum distance between the two neighbour holes that can be obtained is much shorter than that of drilling in air. The SEM photographs of the holes were obtained to analyze the drilling quality. Finally, the finite element software ANSYS was employed to calculate the temperature and stress distributions for the cases of laser drilling in air and under water.
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Books on the topic "Underwater drilling"

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NOSOD II Conference (2nd 1990 University of Waterloo). Second Canadian Proposals Workshop for the Ocean Drilling Program. Waterloo, Ont: University of Waterloo, 1990.

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Canadian Proposals Workshop for the Ocean Drilling Program (2nd 1990 University of Waterloo). Second Canadian Proposals Workshop for the Ocean Drilling Program. St. John's, Nfld: Memorial University of Newfoundland, 1990.

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Symposium, on Future Challenges in Scientific Ocean Drilling (1991 La Jolla California). Proceedings of the Symposium on Future Challenges in Scientific Ocean Drilling, July 8, 1991, Scripps Institution of Oceanography, La Jolla, California. La Jolla, Calif: Scripps Institution of Oceanography, 1995.

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Berg- und Hüttenmännischer Tag (1986 Freiberg, Germany). Fortschritte bei der Erhöhung des Informationsgewinns aus Bohrungen und bei der Beherrschung schwieriger geologischer Bedingungen: Vorträge zum Berg- und Hüttenmännischen Tag 1986 in Freiberg--Kolloquium 5. Leipzig: Deutscher Verlag für Grundstoffindustrie, 1987.

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Quinn, Terrence M. Science and technology report on submerged coral drilling. Washinton, DC (1755 Mass. Ave., NW, Suite 700, Washington 20036): U.S. Science Support Program, Joint Oceanographic Institutions, 2002.

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American Society of Civil Engineers, ed. Spar platforms: Technology and analysis methods. Reston, Va: American Society of Civil Engineers, 2012.

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Conference on Multiple Platform Exploration of the Ocean (1999 Vancouver, B.C.). COMPLEX: Conference on Multiple Platform Exploration of the Ocean. Edited by Pisias Nicklas George, Delaney Margaret L, and Joint Oceanographic Institutions Incorporated. Washington, D.C: Joint Oceanographic Institutions, 1999.

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Gobina, Edward. World markets for deepwater hydrocarbon exploitation: Highlighting enabling systems. Norwalk, CT: Business Communications Co., 2002.

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Contreras, David A. Offshore oil and gas development in the U.S. Hauppauge, N.Y: Nova Science Publishers, 2011.

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International, Conference on Offshore Mechanics and Arctic Engineering (10th 1991 Stavanger Norway). Proceedings of the 10th International Conference on Offshore Mechanics and Arctic Engineering, 1991: Presented at the 10th International Conference on Offshore Mechanics and Arctic Engineering, Stavanger, Norway, June 23-28, 1991. New York: American Society of Mechanical Engineers, 1991.

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Book chapters on the topic "Underwater drilling"

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Ohmura, Etsuji, Takashi Okazaki, Keiichi Kishi, Toshio Kobayashi, Masahiro Nakamura, Satoshi Kubo, and Komei Okatsu. "Crack Propagation Analysis in Underwater Laser Drilling." In Materials with Complex Behaviour II, 715–27. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-22700-4_45.

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Frisbie, F. R. "Designing for Intervention Drilling—ROV." In Advances in Underwater Technology, Ocean Science and Offshore Engineering, 15–18. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4203-5_3.

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Prince, Paul K. "Current Drilling Practice and the Occurrence of Shallow Gas." In Advances in Underwater Technology, Ocean Science and Offshore Engineering, 3–25. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0669-3_1.

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Wang, Xu, Demin Zhang, Qi Lan, Cong Wang, Junpeng Zhang, Mengruo Shen, and Yong Lei. "Micro-needle Dynamic Anchoring Foot Design for Underwater Drilling Robot." In Intelligent Robotics and Applications, 235–46. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-6489-5_19.

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Austin, Melanie E., S. Bruce Martin, and Craig R. McPherson. "Measurements of Underwater Radiated Noise from Mobile Offshore Drilling Units." In The Effects of Noise on Aquatic Life, 1–14. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-10417-6_7-1.

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Hansen, H. B., and O. C. Andersen. "Evaluation of the Past Five Years of ADS/ROV in Drilling Operations." In Advances in Underwater Technology, Ocean Science and Offshore Engineering, 3–5. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4203-5_1.

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Hawkes, G., S. Earle, and S. Etchemendy. "Dedicated Vehicle: a New Remotely Operated Vehicle Specifically Designed for Support of Exploration Drilling." In Advances in Underwater Technology, Ocean Science and Offshore Engineering, 19–26. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4203-5_4.

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Walker, P. M. "UKOOA Recommended Procedures for Mobile Drilling Rig Site Surveys (Geophysical and Hydrographic) — Shallow Gas Aspects." In Advances in Underwater Technology, Ocean Science and Offshore Engineering, 257–89. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0669-3_13.

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Carlos, Lopez Jimeno, Lopez Jimeno Emilio, Javier Ayala Carcedo Francisco, and Ramiro Yvonne Visser de. "Underwater blasting." In Drilling and Blasting of Rocks, 272–80. Routledge, 2017. http://dx.doi.org/10.1201/9781315141435-26.

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Conference papers on the topic "Underwater drilling"

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Kobayashi, Toshio, Masahiro Nakamura, Komei Okatsu, Kiyonobu Ohtani, and Kazuyoshi TAKAYAMA. "Underwater Laser Drilling: Drilling Underwater Granite by CO2 Laser." In SPE Indian Oil and Gas Technical Conference and Exhibition. Society of Petroleum Engineers, 2008. http://dx.doi.org/10.2118/113177-ms.

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Kobayashi, Toshio, Kiyonobu Ohtani, Kazuyoshi Takayama, Satoru Umezu, and Komei Okatsu. "Underwater rock drilling by CO2 laser." In ICALEO® 2007: 26th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. Laser Institute of America, 2007. http://dx.doi.org/10.2351/1.5061102.

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Ward, Peter, and Keith Needham. "Modelling the vertical directivity of noise from underwater drilling." In ECUA 2012 11th European Conference on Underwater Acoustics. Acoustical Society of America, 2012. http://dx.doi.org/10.1121/1.4773597.

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Harris, David, Paul G. Adams, and Doug Bell. "Unusual Underwater Pile Driving in "Iceberg Alley" off Newfoundland, Canada." In IADC/SPE Drilling Conference and Exhibition. Society of Petroleum Engineers, 2010. http://dx.doi.org/10.2118/128193-ms.

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Fang, Qian, Boyun Guo, and Ali Ghalambor. "Formation of Underwater Cuttings Piles in Offshore Drilling." In IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition. Society of Petroleum Engineers, 2006. http://dx.doi.org/10.2118/100922-ms.

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Elshahawy, Mahmoud Ahmed, Helmy Abdel Wahab Younes, and Imad Al Hamlawi. "Underwater Inspection Using ROV." In Abu Dhabi International Petroleum Exhibition & Conference. SPE, 2021. http://dx.doi.org/10.2118/208412-ms.

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Abstract ADNOC Drilling operates a growing fleet of 22 jack up units. These units require various inspections and tests to ensure that their integrity is maintained while conducting the drilling operations. One of these inspections is the underwater inspection which is required to be carried out twice every 5 years. Traditionally, this inspection is carried out by divers at the shipyard where it is safe for divers to carry out cleaning, visual inspections and NDT of structural welds. Moving the rig to a drydock or a shipyard is a costly and involves a lot of activities related to safety in addition to the out of service time. Loss of revenue is experienced while the rig is out of service, as well as costs associated to the survey, shipyard costs, vessel costs etc. all combining to create an expensive inspection process. ADNOC Drilling Marine and Group Technology adapted a new method for performing the full scope of the underwater inspection offshore using small remotely operated vehicles (ROV), most of the scope is carried out while the rig remains in full operation (while drilling).
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Spagnoli, Giovanni, and Leonhard Weixler. "Drilling Technologies for Offshore Foundation Engineering." In ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/omae2013-10305.

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Offshore piles are normally installed by driving using over-water or underwater hammers. However, there are many situations where pile reaches refusal before the installation depth. This paper briefly describes the current offshore foundation practice, the BAUER technology for onshore pile installation by drilling, the BAUER experiences in the offshore foundation and geotechnical fields and a new technology for supporting offshore pile installation when refusal is prematurely reached by means of the Dive Drill.
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Noshi, C. I., and J. J. Schubert. "A Novel Microbially Induced Self-Healing Cement/Concrete for Underwater Concrete Offshore Structures." In SPE/IADC International Drilling Conference and Exhibition. Society of Petroleum Engineers, 2019. http://dx.doi.org/10.2118/194173-ms.

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Du, Shilun, Bonan Chen, and Yong Lei. "Force Control of Swirling Sucker for Underwater Concrete Drilling Robot." In 2021 China Automation Congress (CAC). IEEE, 2021. http://dx.doi.org/10.1109/cac53003.2021.9728214.

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Zheng, Changlong, and Hong Shen. "Influence Of Laser Induced Plasma on Material Removal in Micro-Drilling Underwater." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-70182.

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Abstract Water-assisted ultrafast laser processing was proposed to solve the problem of surface quality in metal during laser micro-hole drilling. The percussion drilling process with different single pulse energies was tested under 10 mm water layer and in air. The morphologies of the laser induced plasma (LIP) were observed and recorded. The drilling depth and micro-hole radius were characterized by microscope and 3D surface profilometer. Experimental results show that the debris, spatter recast or others caused by the laser energy deposition are quickly transferred away, but the material removal performance caused by LIP under water is different from that in air. It is noteworthy that the drilling depth has been significantly reduced at all pulse energies owing to the shielding effect of water and LIP. But the micro-hole radius has increased several times after a sufficient pulse number, which is attributed to the defocusing effect of LIP. In order to explain the mechanism of underwater ablation characteristics, a model combining the LIP formation and evolution was developed to analyze the energy attenuation effect and the beam refraction effect by LIP underwater. Moreover, the annular morphology at the hole bottom under high pulse energy can also be explained by these two effects of LIP.
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