Swan & Co. (Marine Surveyors) Ltd

Range of services to the Northern and Southern North Sea include;


Cargo Surveys

We oversee the loading and return of drilling and completions products and any other specialised bulk cargoes. These will be subject to measurement of quantities, by both vessel and chemical supplier and documentation will be required as supporting evidence, signed off by all parties.

We shall be required to make independent checks on ship and shore, start and finish quantities and to take product samples as required.

In order to ensure that these operations are carried out correctly we have expert knowledge in the following areas:

Competent Analyst / Gas Free Surveys

We provide qualified competent analyst(s) to carry out Gas Free surveys. This can either be for entry only or "hot work" operations.

Damage Survey

We carry out full damage surveys of vessels or cargoes when required, with a comprehensive report to be issued on completion.

Fuel Meter Calibration

We provide personnel to conduct stringent testing on vessel fuel meters, ensuring that meters run to the correct specifications and are displaying exact fuel figures from shore to ship and otherwise. We create detailed reports which inform each vessel of the exact performance of their meters, ensuring that there are no major losses or discrepancies.

IMCA Audits

We carry out full IMCA audits on all supply, anchor handling and standby vessels as and when required. Full report shall be issued to COMPANY on findings.

Marine Gas Oil

We will oversee tank cleaning procedures inside vessel fuel tanks and certifying tanks for cleanliness and fit for purpose, addressing sampling techniques and testing when required. We conduct sampling and in-depth testing/monitoring for bacteria and water content when required.

MARPOL Surveys

We provide supervision and instruction of loading/discharging specialised bulk cargoes such as zinc bromide brine, methanol and glycol in bulk. We ensure that all precautions required in handling such substances are observed at all times and that each operation is carried out to an extremely high and safe standard.

NOTE - All surveyors are to be a registered and approved under MARPOL.

On / Off Hire surveys

We manage the “on-hire” and “off-hire” of vessel(s), including supply, anchor handling and standby vessel(s), by monitoring and checking vessel tank soundings, tank condition and recording findings. Calculations are made to determine vessel fuel consumption and correct amount of fuel consumed during charters.

We retain copies of all soundings and calculated quantities per tank as back-up. Survey’s also to include Master's safety brief as defined and required by the company’s Marine Department. Any problem found with a vessel during the on-hire survey to be advised to chartering company’s Marine Operations.

Specialised & Noxious Products

We provide management of high cost specialised products including, but not limited to:

  • Calcium Bromide.
  • Calcium Nitrate
  • Cesium Formate
  • Cortron CK929-G (Corrosion Inhibitor)
  • Glycol
  • Methanol
  • Monoethylene Glycol (MEG)
  • Potassium Formate
  • Triethylene Glycol (TEG)
  • Zinc Bromide (ZnBr2)

We provide surveying, management of delivery and tank cleaning procedures for any noxious and specialised liquids that can be utilised for offshore drilling. We assist in identifying vessels that are suitable for specialised product carriage and provide stand-alone procedures for safe and competent delivery and storage. Our operations are carried out by MARPOL registered surveyors.

Cortron CK929-G Corrosion Inhibitor

Ship to Ship Transfers

We provide supervision and instruction of ship to ship transfers of various bulk cargoes including the need to ensure that all safeguards against spillage are taken and that all required pollution prevention equipment is in place. The GOMO Guidelines for the Safe Management and Operation of Offshore Support Vessels must be used as the minimum standard for the conduct of any transfers and the appropriate check lists, contained therein, used on every transfer.

Ship to Ship Transfer

Tank Cleaning Supervision

We oversee and co-ordinate tank cleaning operations to ensure that all HSE controls are in place, develop tank cleaning standards and help minimize the requirements for tank cleaning and tank entry.

We oversee the co-ordination of tank cleaning operations, pre-tank entry and equipment checks, pre and post tank inspections and reports. Experience of standards and GOMO Guidelines for tank cleaning shall be utilised at all times.

Tank Inspection

We provide personnel to conduct extensive inspection of vessel tanks, to ensure suitability / cleanliness for the carriage of all drilling and completion bulk products.

We provide timely advice on the necessity to clean tanks to the required standard prior to loading, taking into account last commodity carried and next commodity to be shipped.

In tank cleaning operations, we utilise only those personnel who are certified and highly experienced in confined space entry and vessel tank knowledge.

Waste Products and Waste Control

We understand and have experience with the "Carriage of Contaminated Cargoes" and have the ability to implement the afore-mentioned practices in the North Sea.