Offshore anchor handling is a specialised operation. Due to the economic pressures
always associated with drilling rig operations, anchor handling always has an
element of urgency attached to it. This presents a number of safety issues that are
described in this training package comprising a video and booklet.
Weather is the first consideration when a rig move is planned. The charterer’s
Marine Representative looks for a weather window to allow the entire operation,
once started, to be completed. This aspect has variable significance in different parts
of the world, but the North Sea is a particularly sensitive one. The anchor-handling
vessel must be prepared for the job and the Master expects to have an advance copy
of the Rig Movement Procedure. The officers on board check that they have all the
chains and wire ropes required, as well as all the equipment and supplies that will
be needed during the rig movement. If possible the Marine Representative should
visit the ship’s officers to discuss the job prior to departure.
The Master describes the job to all concerned and conducts a risk assessment
exercise relating to each operational detail. In turn the officers hold ‘tool box’ risk
assessments with the deck crew to ensure that everyone understands what is
involved, what risks are present and what safety measures are needed to reduce
these to a minimum. Once on station, inside the 500 metre zone, a suitable time is
agreed for starting the job. The vessel has to position itself very close to the rig and
wind, currents and sea state are critical factors if the job is to be done safely. A
communication link is established between the Marine Representative on the rig and
the ship’s Master to enable frequent communication during each phase of the
operation, whether lifting the anchor or placing it on the seabed.
The package emphasises the importance of good preparation, detailed knowledge of
the job, continuous risk assessment and a methodical execution of each phase of the
operation. These are the bases of a successful operation.
THE SAFE USE OF IONISING RADIATION IN THE OFFSHORE INDUSTRY
Code No 925
Time: 22 Mins
Every exposure to ionising radiations does involve a certain degree of risk to health
and, as these radiations cannot be seen, heard or felt, they present a special hazard.
However, given our understanding and control of ionising radiations they can be
used safely.
The first section of the film deals with the three factors that provide protection from
radiation, i.e. shielding, time and distance. Diagrams are used as an aid to
understanding the practical issues involved and the reasoning behind them. The film
continues by showing in detail two typical offshore uses of ionising radiation - a
wireline logging operation and a weld inspection. Although these two techniques are
quite different the safety aspects of both that concern non-specialist personnel are
similar. The film examines these operations from both sides and provides an
understanding of how and why the ionising radiation sources are used emphasizing
and demonstrating the safety aspects of each procedure.
This is an instructional film for those working on board oil rigs and drilling-andproduction
platforms. It shows the Norwegian and the Phillips Petroleum
regulations for “Simultaneous Drilling and Production” and the concept of the safety
controls when both drilling and production are in progress. It illustrates the
procedures which must be undertaken by those operating the systems.
Statistics show that crane operations are one of the most hazardous offshore
activities. The film is aimed at all those who need to know more about the operation
of cranes offshore, particularly in terms of safety.
The video uses diagrams to illustrate some of the fundamental theory such as the
reduction of safe working load with increasing sling angle and also crane radius, the
risks of shock loading when unloading and back loading supply boats. The video
emphasises the fact that the crane and lifting gear are an integral lifting system
which will have one maximum safe working load for any given configuration of boom
angle. The importance of weather as an operating restriction is discussed.
After demonstrating basic crane operating techniques the video examines in detail
a typical unloading operation from a supply boat. The video shows how safe crane
operations are a result of good training, proper safe working practices, good
teamwork and communications between the crane operator and the deck crews.
Every part of the operation is shown and many practical safety issues are
demonstrated and discussed.
Offshore installations rely on crane operations for their essential supplies. The
objective of this video is to show how these operations can be made safer.
The aim of this film is to establish that using electric power whilst totally immersed
in sea water can be safe. It is supplied complete with support documentation
designed to assist in the use of the film as a teaching aid.
It deals diagrammatically with some basic electrical theory to demonstrate that the
current that will flow through water depends on the voltage gradient in the water
and also that there are well-defined limits of shock current and shock time that can
be withstood by a diver. It stresses that divers must be protected from shocks by both
passive means - such as good earthing of the electrical equipment - and active
means - such as residual current circuit breakers. These techniques are gone into
in detail.
The importance of safe working practices whilst welding under water is underlined
and a brief consideration is given of R.O.V.s and impressed current anodes.
Time: 24 Mins
Time: 20 Mins