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Challenging times as doubts raised over CSEM technique

Life in the controlled source electromagnetic survey camp remains challenging, reports Jeremy Cresswell.

Survey data vital to selecting routes for subsea pipelines

Long subsea pipelines need a safe and stable route to shore. Pat Fournier, Senior Geophysicist with Australia's Neptune Marine Services, explains the need for good quality survey data from beneath the seabed

AUV supports environmental monitoring, wide area surveys

Carl-Marcus Remén reports on a new generation of autonomous underwater vehicles in the international oil and gas market.

Sonar surveys play key role in South Australia port development

Tom Hiller reports on how wide swath bathymetric sonars are being used for regular hydrographic port surveys

Hybrid robot vehicle undertakes record-breaking dive

There is an underwater vehicle flavour to Jeremy Cresswell's look at what's fresh on the hydrographic front, notably a new type of hybrid robot vehicle for deepsea survey and a semi-submersible vehicle designed to replace small survey monohulls

Mud density measurement saves dredging costs

Heavy-duty device is made from 316 stainless steel using all-welded construction, and is robust enough to withstand being towed through marine sediments

New multibeam echo sounder launched

Acoustic time delay beamforming techniques to deliver high quality survey data, says Tritech

Accelerating 3D seismic data analysis on desktop workstations

A new range of graphical processors can bring server cluster performance onto the desktop for under $10000. Keith Forward reports

Submersible hydrostatic level transmitters for depths of 200m

New from Impress Sensors and Systems is the SDI-12L range of submersible level transmitters that are manufactured from stainless steel or marine-bronze

Integrating wide swath sonar with the portable AUV

Project to collect high resolution, high accuracy co-registered bathymetry and side scan survey data

Underwater thickness gauge is IPX8 rated

Rugged underwater thickness gauges for divers carrying out maintenance inspections and corrosion checks

New 'smart thinking' remotely operated vehicle rated to 3000m

Two innovative remotely operated vehicles were launched by Saab SeaEye at Offshore Europe

NOAA Office of Coast Survey buys AUV

The Iver vehicle enables NOAA to evaluate the expanding role of small, lightweight AUVs for near coastal studies

Double naming ceremony for 3D seismic survey vessels

Purpose-built 3D seismic vessels incorporate the advanced features and maritime technologies for minimising the vessels environmental footprint including the risk of accidental pollution into the marine environment.

Wave equation migration imaging gives clearer sub-salt definition

A novel seismic imaging technique which can penetrate difficult geologies such as salt formations could raise the Gulf of Mexico to a whole new level of exploration importance. Sean Ottewell reports

Increasing array of 4D kit as the market shows steady growth

Since 4D and related systems came into use in the mid-1990s, there has been a steady growth in the market and growing array of kit and techniques designed to improve data quality and therefore provide better reservoir management tools. Jeremy Cresswell reports

Oil supply set to grow to 2030 with no peak evident

Above ground drivers, not the amount of below ground resources will be crucial factor to flow of oil supply in the coming decades. Peter Jackson reports

Reservoir characterisation: microseismics now a key tool

William Wills looks at the increasing use of passive seismic and microseismic monitoring within the oil and gas industry

Sub-bottom survey of geological boundaries in the Arctic Circle

Though there may be vast, technically recoverable oil and gas reserves beneath the sea north of the Arctic Circle there are enormous challenges when operating in such a harsh environment. Neil MacDonald reports

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