16.12.2011

Article "Marine gravity survey at the Caspian with GT-2M, Chekan and L&R gravimeters: comparison of accuracy"

HYDROGRAPHIC RESEARCHES

BATHYMETRY

The Company provides wide range of geological, geophysical, geodetic and hydrographic survey services at both offshore and in transit zones, including:

• Engineering-geological survey
• Offshore gravity and magnetic survey
• Bathymetry survey of any complicity
• Seabed survey with Side Scan Sonar
• Study of geological structure of the seabed sediments with Sub-bottom Profiler, Geosparker, Geoboomer and High Resolution Seismic Survey
• Navigation support and rig move positioning services using DGPS and Telemetry Systems

For our operations we use the following modern and high-tech equipment providing short period and high professional level of works execution:

• Navigation systems DGPS C-Nav (US) and Veripos (UK)
• Single beam and multi beam echosounders produced by RESON and Odom Hydrographic
• Side-scan sonar systems L3-Klein 3900 and Edgetech 4125
• Gyrocompasses TSS MERIDIAN SURVEYOR and TSS MAHR
• Pitch-Roll Motion Sensor TSS DMS 05-25 of different modification
• Sound velocity profiler RESON, Odom Hydrographic
• Tide Gauge Midas WLR Valeport
• Marine sparker and boomer GeoMarine
• Marine magnetometers G-882 Geometrics and Gradiometers
• Sub-bottom Profilers Innomar SES-2000 Compact and Teledyne Bentos Chirp-III
• ROV System VideoRay 4
• Software for navigation, processing and mapping QPS, Trimble Navigation, Leica Geosystems, Geometrics, Golden Software, Geosoft

During the last years we carried out:

• 2010-2011 Pipeline routes geophysical and UXO surveys from Pearls Block towards Buzachi peninsula for CMOC
• 2010-2011 Gravity and magnetic survey of the Kazakhstan Sector of the Caspian Sea
• 2010 Detailed bathymetric surveys in the north-eastern part of the Caspian Basin for Agip KCO
• 2010 Well site surveys on Pearls block for CMOC
• 2009 Well site surveys on Kalamkas site for Agip KCO
• 2009 Offshore geophysical researches in the transit zone of Kashagan for Agip KCO
• 2009 Offshore gravity and magnetic survey of Zhambyl area
• 2006 Gravity-magnetic surveys on Kurmangazy area
• 2004-2005 Detailed bathymetric surveys in the north-eastern part of the Caspian Basin for Agip KCO
• 2003 Gravimetric survey at the structures Kashagan, Aktoty and Kairan

Our specialists have studied in the companies Odom Hydrographic, Marine Sonic Technology and Geometrics. Our specialists have regular courses of sea survival BOSET and H2S courses.

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