Canada Oil and Gas Geophysical Operations Regulations (SOR/96-117)

Regulations are current to 2019-06-20

PART IIIOnshore Geophysical Operations (continued)

Loading Charges into Shot Holes

  •  (1) Every operator who is conducting an onshore geophysical operation shall, when charges are being loaded into a shot hole, ensure that

    • (a) detonator lead wires are unravelled or unwound slowly when a charge is being lowered into a shot hole and are not unravelled or unwound by being thrown or dragged along the ground;

    • (b) damaged lead wires and damaged connecting wires are not used in blasting circuits;

    • (c) every member of the geophysical crew who is engaged in the handling of explosives or involved in the blasting operation is warned of the potential build-up of static electricity on the member’s clothing or in the atmosphere as a result of drifting sand or snow and of possible accidental firing of detonators if detonator lead wires are thrown to the ground;

    • (d) loading poles and pole extension fittings for them are made of non-sparking, anti-static material;

    • (e) undue force is not used to insert a charge into position in a shot hole; and

    • (f) any device that is used to decrease the buoyancy of a charge or to anchor a charge in a shot hole is made of non-sparking material.

  • (2) Every operator who is conducting an onshore geophysical operation shall, once a charge is loaded into a shot hole, ensure that

    • (a) the detonator lead wires remain shunted at all times except during circuit testing;

    • (b) detonation of the charge occurs within 30 days after the day on which the charge is loaded into the shot hole, or any longer period approved by a conservation officer; and

    • (c) in inhabited areas or areas where there is the possibility that the detonator lead wires or detonating cord of the charge may be tampered with, a temporary plug is placed in the shot hole and the ground in the vicinity of the shot hole is levelled.

  • (3) Every operator who is conducting an onshore geophysical operation shall ensure that

    • (a) when blasting in the vicinity of buildings, railways, roads or inhabited areas, the charge used is no larger than required;

    • (b) when blasting within 50 m of an overhead power line, the shooter who is responsible for the blasting uses

      • (i) detonating cord as a downline to the charge, and

      • (ii) a short detonator lead wire to initiate the detonating cord if the total detonator lead wire length is less than the distance from the overhead power line to the nearest point on the ground at the blasting site;

    • (c) when blasting in the area of a commercial electromagnetic transmitter with power in an amount that is set out in column I of an item of Schedule III, a charge is not loaded into a shot hole, primed or detonated unless the shot hole is located at least the distance set out in column II of that item from the base of the transmitter mast; and

    • (d) the circuit of every electric detonator is tested with a blaster’s galvanometer immediately after the charge is loaded into a shot hole and, if the test indicates that the circuit is open, no attempt is made to remove the charge and a fresh primed cartridge is inserted into the shot hole.

  • (4) Every operator who is conducting an onshore geophysical operation shall ensure that charges are not loaded into a shot hole during an electrical storm or when an electrical storm is imminent.

Flagging Charged Shot Holes

 Every operator who is conducting an onshore geophysical operation shall ensure that all shot holes that contain a charge are clearly flagged.

Firing Charges

 Every operator who is conducting an onshore geophysical operation shall ensure that

  • (a) detonator lead wires remain shunted at all times except when the charges are ready to be fired and during circuit testing after loading;

  • (b) all blasting equipment at the blasting site is under the direct supervision and control of the shooter;

  • (c) when conducting a blasting operation in the vicinity of buildings, railways, roads or inhabited areas, the shooter

    • (i) takes adequate precautions to prevent any damage to property, and

    • (ii) places warning signs or barricades or uses flagpersons to ensure that no persons other than those engaged in the blasting operation remain in the area made dangerous by the blasting operation;

  • (d) when blasting operations are being carried out, the shooter takes adequate precautions to ensure that no charge is fired until all persons in the vicinity of the charge are protected by suitable cover from falling rocks, flying debris, mud and any other material disturbed or displaced as a result of the detonation or are at a safe distance from the charge;

  • (e) detonators that are used near the surface of the ground are covered in such a manner that any fragments of metal and debris resulting from the detonation are confined;

  • (f) a radio transmitter is not used at or near a blasting site when there are detonators outside of a magazine and above ground;

  • (g) all blasting equipment is maintained in good working condition;

  • (h) repair work to blasting equipment or to the firing cable is not conducted while the firing cable is wired to charges;

  • (i) the blasting equipment is disconnected from the blasting circuit and the ends of the lead wires connected to the charge are twisted together

    • (i) immediately after firing, if the charge fails to detonate, and

    • (ii) before any member of the geophysical crew inspects any shot hole that contains or may contain explosives;

  • (j) every detonator remains disconnected from the firing cable until the next charge or the next series or pattern of charges is ready to be fired and until the shotpoint is clear of all persons;

  • (k) all shot holes containing a charge are fired before the termination of the operation;

  • (l) blasting operations are not carried out during an electrical storm or when an electrical storm is imminent;

  • (m) anti-static detonators are used where possible for all blasting operations; and

  • (n) all electric detonator lead wires and other refuse from the blasting operation are retrieved from the field location of the operation.

Detonating Cords

  •  (1) Every operator who is conducting an onshore geophysical operation shall ensure that, when a detonating cord is used in water,

    • (a) the end of the cord is sealed;

    • (b) the entire length of cord is submerged before the firing cable is connected to the blasting equipment; and

    • (c) the charge is detonated as soon as possible after loading.

  • (2) Every operator who is conducting an onshore geophysical operation shall ensure that, when a detonating cord is used on damp ground, the charge is detonated as soon as possible after loading.

  • (3) Every operator who is conducting an onshore geophysical operation shall ensure that no vehicle is driven over a detonating cord.

Misfired Charges

  •  (1) Every operator who is conducting an onshore geophysical operation shall, in respect of any charge that has not detonated as a result of misfire, ensure that

    • (a) no attempt is made to remove the charge from the shot hole; and

    • (b) an attempt is made to detonate the charge promptly by means of a fresh primer or by inserting and detonating another charge in that shot hole.

  • (2) When a charge fails to detonate after an attempt is made under paragraph (1)(b), the operator shall ensure that the charge and the lead wires that are connected to it are buried in the shot hole and that the shot hole is plugged in accordance with section 25.

  • (3) Every operator who is conducting an onshore geophysical operation shall, on completion of the operation, report in writing to a conservation officer the location of all charges that failed to detonate.

Plugging Shot Holes

  •  (1) Every operator who is conducting an onshore geophysical operation shall, after a charge has detonated, ensure that the shot hole is plugged by

    • (a) filling the shot hole with drilling mud or cuttings to the point where the plug required by paragraph (b) is to be inserted;

    • (b) inserting a shot hole plug of a type approved by the Chief Conservation Officer to a depth of at least 30 cm below the surface;

    • (c) filling the shot hole above the plug with drilling mud or cuttings and tamping the contents into the shot hole; and

    • (d) spreading any remaining drilling mud or cuttings over the ground in the vicinity of the shot hole.

  • (2) Where, during an onshore geophysical operation, water or gas comes to the surface of a shot hole, the operator shall

    • (a) in the case of water, immediately attempt to plug the shot hole to confine the water; and

    • (b) in the case of gas, immediately evacuate the site until the gas has dissipated.

  • (3) Every operator who, during an onshore geophysical operation, disturbs a shot hole from a previous geophysical operation shall ensure that the shot hole is plugged in accordance with subsection (1).

 
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