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Keywords: obstacle
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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2023
Paper Number: OTC-32559-MS
... government sub-sea system software vehicle inspection pipeline inspection oceaneering offshore technology conference sensor requirement autonomy obstacle reliability subsea hybrid auv rov development program deployment Introduction The decision to develop a hybrid AUV/ROV stemmed from...
Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31031-MS
... obstacles like existing crossings and free spans are the main factors that affect the route selection. This article proposes a novel hybrid optimization method based on a typical Machine Learning algorithm for designing an optimal pipeline route. The proposed optimal route design is compared with one...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30694-MS
... conference artificial intelligence quadrupedal robot inspection controller international conference obstacle localization information algorithm upstream oil & gas path planning monitoring sensor navigation mesh fire service college References References Chermprayong , P...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-25711-MS
..., bathymetric data, obstacles, etc. Slope stability verification is also important in landslide risk areas in the pipeline route design context. Thus, this study evaluates the influence of these factors on a representative scenario route configuration. The case study results indicated the slope stability...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2004
Paper Number: OTC-16621-MS
... overbalanced drilling methods. This paper describes and explains the Applications Indexes, that align certain UBD equipment required to nullify or eliminate a number of conventional overbalanced drilling barriers or obstacles, i.e., loss circulation, slow Rate of Penetration (ROP), narrow fracture to pore...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2004
Paper Number: OTC-16624-MS
... and proven to practice UBD and MPD in marine environments. Drilling in marine environments with a "closed & pressurizable" mud returns system and particularily where the intent is not to invite hydrocarbons influx - offers relatively low hanging fruit to overcome a litany of obstacles to conventional...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2000
Paper Number: OTC-12001-MS
... Abstract We present recent work developing real-time sector scan sonar and video data processing algorithms for embedded use in AUVs and their topside data processors. Forward looking sonar algorithms have been designed and evaluated for object tracking, mapping, navigation and obstacle...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 1998
Paper Number: OTC-8852-MS
... sea floor. Despite their success, DP rigs do present failures such as black-outs, drift-offs, and drive-offs. Any such failure can end up in a collision with a surface or subsea obstacles, of catastrophic implications. A mathematical method was established based on probabilistic statistical analysis...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 1993
Paper Number: OTC-7251-MS
... simulation ignition source module upstream oil & gas obstacle prediction combustion maximum pressure gas cloud otc 7251 ignition location proportion overpressure peak pressure experiment detonation OTC 7251 Partially Confined Explosions Under Nonoptimal Explosion Conditions D.J. Allen...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 1991
Paper Number: OTC-6519-MS
... motion. However, the use in bad calculations of the steady current measured or estimated for the open sea far away from the platform leads to a significant overestimate of the currentinduced components of the loading. The presence of obstacles in a steady current alters the structure of the flow field...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 27–30, 1987
Paper Number: OTC-5473-MS
... of the mining site (fig. 1). The main characteristics to be taken into account are topography (slopes and obstacles) and abundance. A given mining system has limitations as regards its manoeuvering capabilities, which mainly depend on whether a towed collector or a self-propelled collector is used (fig. 2...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 1986
Paper Number: OTC-5172-MS
... vehicle requirement integration offshore oil industry computer untethered vehicle vehicle system platform sensor artificial intelligence untethered rov upstream oil & gas manipulator construction navigation obstacle intervention inspection vehicle type OTC 5172 A Technology...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 1986
Paper Number: OTC-5238-MS
... and concentration. It clearly appears (fig. 2) that the cut off of slopes exceeding 10 % induces quite a great deal of U-turns if we want to sweep the largest part of the mining site. Depending on miner manoeuvrability, narrow patches will be treated as remote obstacles and avoided by the miner alone, without...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 1980
Paper Number: OTC-3786-MS
... ABSTRACT Pipelines constructed from offshore areas often encounter physical barriers or obstacles as they come ashore. Obstacles encountered may be in the form of difficulties to construct through a heavy surf or unstable areas, environmental or recreational restrictions, construction...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 1979
Paper Number: OTC-3528-MS
... obstacle. We were also interested in the causes of ice stress, and the spatial and temporal patterns of ice stress and ice fracture. Clearly, a great deal of instrumentation is required to fully answer such questions, and furthermore, since events of high stress are infrequent, an extended period of data...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 1979
Paper Number: OTC-3577-MS
.../predict the trafficability and stability performance of bottom-crawling vehicles working in the nearshore region. Vehicle trafficability is described in terms of obstacle negotiation, slope climbing ability, soft soil mobility, and drawbar pull and tractive force development. Vehicle stability...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 1979
Paper Number: OTC-3622-MS
... or other obstacles prevent access to normal marine operations; and (3) inland waters such as large rivers and lakes. Examples of surveys in each of these zones are given. INTRODUCTION Seismic operations are usually subdivided into land and marine, and field techniques in the two instances differ in many...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 7–10, 1978
Paper Number: OTC-3308-MS
... ultimate significant scour depth sediment size significant scour depth ripple order wave theory engineering pile diameter experiment reynolds number otc 3308 obstruction obstacle agroup scour depth upstream oil & gas scour wave steepness OTC 3308 SCOUR AROUND AGROUP OF PILES by Wei...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 21–23, 1970
Paper Number: OTC-1187-MS
... the hydrography, soil characteristics, presence of obstacles and location of existing pipelines, current velocity data and other pertinent information. The purpose of this paper is to outline a comprehensive survey approach to marine pipeline route studies. The tools and techniques to accomplish these studies...

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