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


CABLE MAINTENANCE & PROTECTION


CABLE DEPTH OF BURIAL SURVEYING IN CHALLENGING MARINE ENVIRONMENTS


Traditionally dependent upon weather conditions and limited by vessel and ROV capability, cable inspection and depth of burial surveying is an area of interest for operators, installation and survey contractors.


Cable tracking sensors are typically equipped to semi-work class ROVs, restricting the vessel size to those capable of accommodating and safely deploying such a unit, and therefore the minimum working water depth. Designed for operation in between 5-150m water depth, Bibby HydroMap’s newly launched survey ROV d’ROP presents a viable solution to the coastal survey challenge commonly faced on offshore renewables sites.


DEPLOYMENT


Designed initially for operation from the company’s 27.5m DP1 survey vessel Bibby Athena, the d’ROP is deployed vertically beneath the vessel, deriving vertical position from a heave-compensated winch and combined LARS, with the on-board thrusters maintaining heading and fine adjustments to the lateral position.


Maintaining a fixed heading and altitude in relation to a survey line, cable or pipeline provides exceptional line-keeping ability in comparison to traditional mid-size ROV systems. Thrust capability is also significantly improved over equivalent-sized ROVs, enabling the d’ROP to hold station effectively and survey between 1-4knots, in up to 3 knots of tide.


VERSATILITY


The d’ROP offers a versatile platform to accommodate various sensors, including the traditional TSS cable and pipeline tracking units, side scan sonar, multibeam echo sounder for hi-resolution bathymetry, sub-bottom profiler, magnetometer for UXO survey and notably, PanGeo’s SBI.


“This has been achieved by overcoming the effects of real time environmental factors on the survey data by employing extremely responsive active heave compensation (AHC) in conjunction with a low drag platform with an impressively powerful dynamic tracking capability.”


INTERACTIVE WORKSHOPS Bibby HydroMap hosted interactive workshops in Lowestoft in November onboard Bibby Athena, where representatives from Bibby HydroMap delivered presentations and answered questions about the combination of d’ROP and SBI. This is to be followed in January with free trials over selected client assets.


Bibby HydroMap


Click to view more info = Click to view video


BENEFITS


HydroMap’s Managing Director Andy McLeay comments “A key benefit of d’ROP is its ability to support virtually any survey sensor and accurately deploy it at the point of interest for maximum effectiveness. We are only now realising the full range of applications and potential of the unit, with our overriding aim being to optimise data quality and productivity.


www.windenergynetwork.co.uk


63


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