GISL offer full Onshore surveying services such as:
-Well Site Surveys
-Right-Of-Way surveys
-Facility As Built Survey
-Mapping
From the field to the office, all work is performed in a professional manner and with the client in mind. We utilize emerging technologies. Our staff have been specially trained to meet any challenges that the may face while working on their projects.
Our emphasis on teamwork guarantees that each stage of the job is completed with the same level of excellence as the last, creating seamless production, and a clean accurate result.
The near shore and shallow water environment presents unique problems for detailed seabed and sub-sea assessments critical to cost-effective design and installation of marine construction projects. Geocadinal has addressed these needs in a dedicated near shore survey unit that offers a wealth of specialist expertise and affordable near shore hydrographic and geophysical survey services.
Our survey personnel have been trained in the multidiscipline of surveying, equipment operation and maintenance and the processing and presentation of results.
Near-shore survey capabilities include:
- Single beam and multibeam echo sounder operations for detailed bathymetric charting in support of engineering and construction projects, navigation surveys, resource evaluation and conservancy.
- Side scan sonar surveys for detailed seabed mapping and the location and identification of man-made objects such as debris, shipwrecks, and sub-sea structures.
- Seismic profiler surveys for the investigation of sub-sea geology.
- Pre-route surveys for sub-sea cables and pipelines. Detailed corridor mapping provides the essential raw material for the design and installation of linear structures in shallow water.
- Acoustic inspection surveys for sub-sea installations, pipelines and cables.
Data from drilling hazard surveys is acquired with the aim of supporting plans for rapid development. Detailed knowledge of the potential hazards which may affect a drilling rig is critical during offshore exploration and production of oil and gas. Key considerations are:
- Spud Scan
- Shallow gas
- Anchoring conditions
- Top hole stability
- Foundation of jack up rigs
- Gas hydrates
- Soil/slope stability
Detailed surveys of corridors for oil and gas pipelines, flow-lines and umbilical cables allow engineers to design cost-efficient, practical and safe routes for their installations. Route surveys examine the topography of the seafloor for engineers to identify optimum routes and laybarge anchoring zones. Wrecks, man-made artifacts, debris and dumping grounds are identified to ensure that pipes and cables are not laid in potentially hazardous areas. Sampling systems and high-resolution geophysical systems provide information of the structure of the seafloor and for burial and trenching evaluation.
This is an area in which we are expanding rapidly. Onboard processing and mapping as well as final digital and paper end results are delivered. We are also in the phase of interfacing to GIS and can provide GIS solutions for cable and pipeline projects.


