This page contains a Flash digital edition of a book.
FEATURE SPONSOR


SEABED SURVEYING


The result is DeepOcean’s Superior ROV, which was delivered in co-operation with manufacturer Kystdesign in June 2015. The Superior ROV offers the company and its client’s superior acoustic and visual line inspection and seabed mapping capability, including increased speed and stability as a result of its hydrodynamic shape, speeds up to 6 knots and twice as fast as conventional survey ROVs. This in water depths to 1000m, with improved positioning with auto track capability and 20% increased data quality through significant improvements or signal/noise ratio.


MODE 1 – SEABED MAPPING


When


equipped with a dual head multibeam echo sounder, side scan


sonar and sub- bottom profiler, the Superior ROV can map the seabed at speeds


Figure 1


Superior ROV final design showing configuration with skid and new pipetracker frame (left) and ROV in high speed configuration without skid (right).


The modular approach allows a significant flexibility in operation modes for the vehicle. Three main modes of operation are envisaged:


between 4-6 knots, twice as fast as traditional ROV seabed mapping.


MODE 2 – ACOUSTIC LINE INSPECTION Acoustic line inspections are performed using side scan sonars only. Superior equipped with still cameras and laser profilers fly right above the pipe/product at 5-7m altitude and provide high resolution pictures from above as well as ultra high density 3D point clouds over the line.


Detailed inspection analyses are carried out at significantly higher speeds than the traditional acoustic surveys.


CONTINUED... Figure 2


Superior ROV in Seabed Mapping mode


www.windenergynetwork.co.uk


53


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70  |  Page 71  |  Page 72  |  Page 73  |  Page 74  |  Page 75  |  Page 76  |  Page 77  |  Page 78  |  Page 79  |  Page 80  |  Page 81  |  Page 82  |  Page 83  |  Page 84  |  Page 85  |  Page 86  |  Page 87  |  Page 88  |  Page 89  |  Page 90  |  Page 91  |  Page 92