PART IIOffshore Geophysical Operations (continued)
Air Gun Testing
12 (1) Where an air gun is test-fired on the deck of a vessel or platform during an offshore geophysical operation, the operator shall ensure that the person who is responsible for the operation and maintenance of the air gun is present during the test.
(2) Where a test referred to in subsection (1) is carried out, the responsible person referred to in that subsection shall ensure that
(a) before the test-firing, a siren is sounded to alert all persons aboard the vessel or platform of an impending air gun test-firing operation, in time to allow evacuation of an area within an 8 m radius of the test-firing site;
(b) not more than one air gun is test-fired at one time;
(c) before the test-firing, an inspection is done to ensure that the area within an 8 m radius of the test-firing site is clear of unauthorized persons;
(d) all pipes and hoses connected to the air gun that are subject to high pressure are secured or equipped with safety chains to prevent whipping of the pipes or hoses when air pressure is injected into them;
(e) the air pressure in the air gun is below 500 psi; and
(f) the person in charge of the vessel or platform is advised that the test is being carried out.
(3) During an offshore geophysical operation, no air gun shall be test-fired while the air gun is in the water if there are divers within 1,500 m of the air gun.
(4) During an offshore geophysical operation, no air gun shall be test-fired on a vessel or platform without the approval of the Chief Safety Officer.
13 Where an operator who is conducting an offshore geophysical operation uses or intends to use a gas exploder as a seismic energy source, the operator shall ensure that
(a) no person smokes, welds or brazes in any area that is in close proximity to any gas cylinders or inflammable liquid tanks;
(b) gas storage areas are properly ventilated;
(c) all valves and fittings used on a gas cylinder are approved by the manufacturer of the cylinder for use on the cylinder;
(d) all equipment used for handling explosives is approved by the manufacturer of the equipment for the handling of explosives;
(e) every gas cylinder and inflammable liquid tank is stored in an area set aside for that purpose and signs warning of the hazard of explosion are posted in conspicuous locations in that area;
(f) every propane or butane cylinder is stored at the greatest possible distance from any oxygen cylinder or inflammable liquid tank; and
(g) every gas cylinder is protected from overheating.
Electrical Seismic Energy Sources
14 Where an operator who is conducting an offshore geophysical operation uses or intends to use an electrical seismic energy source, the operator shall ensure that
(a) the charging and discharging circuits of the electrical seismic energy source are equipped with circuit breakers;
(b) the electrical cables of the electrical seismic energy source are protected from damage and are adequately insulated and grounded to prevent current leakage and electrical shock; and
(c) the electrical seismic energy source, when tested, is fully immersed in water.
15 Where a helicopter is used in an offshore geophysical operation, the operator shall ensure that
(a) the helicopter deck on the vessel or platform from which the operation is conducted is designed, constructed and operated in accordance with the Guidelines Respecting Helicopter Facilities on Ships, TP 4414, published in December 1986 by the Canadian Coast Guard, as amended from time to time; and
(b) an immersion suit that complies with the Canadian General Standards Board Standard CAN/CGSB-65.17-M88, Helicopter Passenger Transportation Suit System, published in January 1988, as amended from time to time, is worn by every member of the geophysical crew who is on a flight to or from the vessel or platform from which the operation is conducted.
PART IIIOnshore Geophysical Operations
16 Every operator who is conducting an onshore geophysical operation shall
(a) determine the location of survey monuments in the vicinity of the field location of the operation and along any access roads or trails;
(b) before the movement of any equipment, ensure that all survey monuments are clearly flagged; and
(c) ensure that no work that is related to the operation is conducted within 2 m of a survey monument.
Seismic Energy Sources
(a) is located so that, when the energy source is activated, no damage is caused to any wells, mines, pipelines, buried utilities, buildings or dams;
(b) is placed at least 2 m from any driveway, gateway or buried telephone or other communication line;
(c) where the energy source is a charge comprised of explosives, is placed
(i) where the quantity of explosives being used for the charge is set out in column I of an item of Schedule I, at least the distance set out in column II of that item from any oil or gas well or the centre line of any oil or gas pipeline, and
(ii) where the quantity of explosives being used for the charge is set out in column I of an item of Schedule I, at least twice the distance set out in column II of that item from any dam, residence, area of public congregation or water well; and
(d) where the energy source is other than a charge referred to in paragraph (c), is placed at least
(i) 100 m from any dam,
(ii) 15 m from any oil or gas well or the centre line of any oil or gas pipeline,
(iii) 50 m from any residence, structure with a concrete base or area of public congregation, and
(iv) 100 m from any water well if the energy source is vibroseis, or 50 m from such a well if the energy source is not vibroseis.
(2) An operator shall not allow more than 500 kg of explosives to be detonated in any shot hole or array of shot holes.
(3) Every operator who is conducting an onshore geophysical operation shall ensure that
(a) magazines that contain a quantity of explosives set out in column I of an item of Schedule II are located at least
(i) the distance set out in column II of that item from any highway or road accessible to the public, any railway, airfield, bank of a navigable or recreational waterway, park or other recreational area, or the work area for the operation, and
(ii) twice the distance set out in column II of that item from any building or storage area for inflammable substances in bulk; and
(b) magazines are located or protected so that they will not be damaged by accidental impact.
Preparation of a Charge
(a) no tools other than tools made of bronze or another non-sparking material are used to cut or pierce a cartridge;
(b) there is no stripping of cartridges;
(c) priming is done only at the blasting site and all explosives, other than the charge to be loaded into the shot hole, are kept inside a magazine until the primed cartridge is loaded into the shot hole;
(d) no detonating cord is capped and no cartridge is primed in any place where explosives are stored; and
(e) the detonating cord is handled in a manner that prevents bending or pinching of the cord.
(2) Every operator who is conducting an onshore geophysical operation shall ensure that all the electric detonators used in a circuit are of the same design and made by the same manufacturer.
Drilling Shot Holes for Charges
(2) Every operator who is conducting an onshore geophysical operation shall, when a shot hole is being drilled in an area that is prone to deposits of shallow gas, ensure that
(a) the drilling rig is positioned, with respect to the wind, so that gas encountered during drilling will not accumulate in the vicinity of the rig;
(b) the drilling rig is free from heat sources that might ignite any gas that has accumulated in the vicinity of the rig; and
(c) the engine is equipped with air intake shut-off valves that can be activated by the driller.
(3) Every operator who is conducting an onshore geophysical operation shall, when gas is encountered during drilling, and where it can be done safely, allowing sufficient time to permit evacuation, ensure that the air intake shut-off valves on the engine are placed in the off position.
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