Ocean Tech. RABIN’s services in the field of subsea inspections lead to better decision-making in offshore operations. The company’s team has successful experiences in managing, organizing, and executing subsea inspection projects, enabling high-quality and safe project implementation, as well as project-specific efficiency and agility. Drawing on evaluations of previous projects, Ocean Tech. RABIN provides detailed analytical reports of pre and post offshore operation requirements to operations managers. Moreover, in many inspections (when necessary), real-time status reporting is also available.
Geophysics Survey
Geophysics survey
Ocean Tech. RABIN, utilizing the most up-to-date subsea inspection equipment and an experienced specialized team, aims to provide accurate technical information that clients expect. This is done in a way that minimizes operational risks for clients throughout the operations.
Geophysical Inspections:
- Inspections of submerged objects and structures
- Geolocation and inspection of underwater objects
- 2D and 3D seabed modeling
- Inspection of underwater pipelines and cables
- Subsea metrology
- Multibeam survey
- Sidescan sonar survey
Ocean Tech. RABIN, with its advanced methodology, proven technology, experienced personnel, and up-to-date equipment, provides subsea inspection services in the following projects:
- Salvage projects for submerged objects and sunken vessels
- Drilling rig relocation
- Pre-installation inspections of offshore structures, pipelines, and submarine cables
- Design of submarine pipeline and cable routes
- Anchor handling operations
Accurate information from both surface and subsea geophysical inspections significantly contributes to reducing risks and costs in offshore installation and rig positioning operations.
Among the key risks in Rig Positioning operations are the presence of footprints and depressions in the seabed. Preventing issues arising from these features is a top priority in the operational design process.
Hence, Ocean Tech. RABIN has endeavored to utilize a Multi-beam Side Scan Sonar with multi-frequency capability to precisely identify and measure the depth of such features. By providing an approximate seabed density, the company aims to offer the highest possible confidence to its clients.
Another challenge in subsea inspections is accurate positioning of debris and depressions. Through the use of motion sensors and underwater positioning systems, the company has achieved accuracy of less than half a meter in inspection operations.
Other advantages of the company include:
- Experience in operations from coastal to deep waters
- Knowledge of subsea inspection based on current world standards
- Adherence to up-to-date global standards
- Utilization of an experienced specialized team
- Employment of the most reputable and state-of-the-art equipment
- Availability of standby diving teams during operations
experiences of the specialized team and the company are as follows:
- Over 10 years of experience in supervising subsea inspection and positioning operations
- Geophysical inspection of Nasr 5 platform area in Siri oil field
- Geophysical inspection of Nasr 6 platform area in Siri oil field (2 phases)
- Geophysical inspection of Ilam 1 platform area
- Supervision of identification and inspection of over 200 submerged objects using side-scan sonar and diving operations throughout Iran
- Bathymetric survey and side-scan sonar inspection of the Karun River
- Bathymetric survey and side-scan sonar inspection of the Arvand River
- Bathymetric survey (hydrographic inspection) and side-scan sonar inspection of berths 8 to 24 in Shahid Rajaei Port
- Bathymetric survey (hydrographic inspection) and post-installation inspection of the Bahregansar platform pipelines, modeling, and report preparation
- Bathymetric survey (hydrographic inspection) and side-scan sonar inspection of Javad Al-Aemmeh (AS) Fishing Port