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Canada Oil and Gas Installations Regulations (SOR/96-118)

Regulations are current to 2020-11-02 and last amended on 2020-10-06. Previous Versions

PART IIAnalysis and Design (continued)

Concept Safety Analysis for Offshore Production Installations

  •  (1) Every operator shall, at the time the operator applies for a development plan approval in respect of an offshore production installation, submit to the Chief a concept safety analysis of the offshore production installation in accordance with subsection (5), that considers all components and all activities associated with each phase in the life of the production installation, including the construction, installation, operation and removal phases.

  • (2) The concept safety analysis referred to in subsection (1) shall

    • (a) be planned and conducted in such a manner that the results form part of the basis for decisions that affect the level of safety for all activities associated with each phase in the life of the production installation; and

    • (b) take into consideration the quality assurance program selected in accordance with section 4.

  • (3) Target levels of safety for the risk to life and the risk of damage to the environment associated with all activities within each phase of the life of the production installation shall be defined and shall be submitted to the Chief at the time the operator applies for a development plan approval.

  • (4) The target levels of safety referred to in subsection (3) shall be based on assessments that are

    • (a) quantitative, where it can be demonstrated that input data are available in the quantity and of the quality necessary to demonstrate the reliability of the results; and

    • (b) qualitative, where quantitative assessment methods are inappropriate or not suitable.

  • (5) The concept safety analysis referred to in subsection (1) shall include

    • (a) for each potential accident, a determination of the probability or susceptibility of its occurrence and its potential consequences without taking into account the plans and measures described in paragraphs (b) to (d);

    • (b) for each potential accident, contingency plans designed to avoid the occurrence of, mitigate or withstand the accident;

    • (c) for each potential accident, personnel safety measures designed to

      • (i) protect, from risk to life, all personnel outside the immediate vicinity of the accident site,

      • (ii) provide for the safe and organized evacuation of all personnel from the production installation, where the accident could lead to an uncontrollable situation,

      • (iii) provide for a safe location for personnel until evacuation procedures can be implemented, where the accident could lead to an uncontrollable situation, and

      • (iv) ensure that the control station, communications facilities or alarm facilities directly involved in the response to the accident remain operational throughout the time that personnel are at risk;

    • (d) for each potential accident, appropriate measures designed to minimize the risk of damage to the environment;

    • (e) for each potential accident, an assessment of the determination referred to in paragraph (a) and of the implementation of the plans and measures described in paragraphs (b) to (d);

    • (f) a determination of the effects of any potential additional risks resulting from the implementation of the plans and measures described in paragraphs (b) to (d); and

    • (g) a definition of the situations and conditions and of the changes in operating procedures and practices that would necessitate an update of the concept safety analysis.

  • (6) The determinations and assessments required by paragraphs (5)(a) and (e), respectively, shall be

    • (a) quantitative, where it can be demonstrated that input data is available in the quantity and of the quality necessary to demonstrate reliability of the results; and

    • (b) qualitative, where quantitative assessment methods are inappropriate or not suitable.

  • (7) The plans and measures identified in paragraphs (5)(b) to (d) shall be designed to ensure that the target levels of safety as defined pursuant to subsection (3) are met.

  • (8) The operator shall maintain and update the concept safety analysis referred to in subsection (1) in accordance with the definition of situations, conditions and changes referred to in paragraph (5)(g) to reflect operational experience, changes in activity or advances in technology.

Offshore Environmental Criteria and Loads

  •  (1) For the purposes of undertaking the analyses referred to in section 41, the determination of environmental criteria and loads on an offshore installation shall be made in accordance with sections 5 and 6.5 to 6.13 of Canadian Standards Association CAN/CSA-S471-92, General Requirements, Design Criteria, the Environment, and Loads.

  • (2) For the purposes of undertaking the analyses referred to in section 41, permanent loads, operational loads and accidental loads shall be determined in accordance with sections 6.2, 6.3 and 6.4, respectively, of Canadian Standards Association CAN/CSA-S471-92, General Requirements, Design Criteria, the Environment, and Loads.

  • (3) For the purposes of undertaking the analyses referred to in section 41, for offshore installations, load combinations shall be determined in accordance with section 6.14 of Canadian Standards Association CAN/CSA-S471-92, General Requirements, Design Criteria, the Environment, and Loads.

Offshore Site Investigations

  •  (1) Offshore site investigations shall be carried out, for the purpose of undertaking the analyses referred to in section 41, in accordance with section 4 of Canadian Standards Association CAN/CSA-S472-92, Foundations, Offshore Structures.

  • (2) Where permafrost is present at a production site, the geotechnical investigation for the purposes of undertaking the analyses referred to in section 41 shall include sampling of the permafrost.

  • (3) The analysis of all fill sources for an offshore installation shall meet the requirements of section 7.3.2 of Canadian Standards Association CAN/CSA-S472-92, Foundations, Offshore Structures, and shall include sampled boreholes and laboratory testing of the recovered samples.

Geotechnical Parameters for the Offshore

 For the purposes of undertaking the analyses referred to in section 41, the geotechnical parameters used for stability, deformational and thermal analyses shall be selected in accordance with section 5.2.5 of Canadian Standards Association CAN/CSA-S472-92, Foundations, Offshore Structures.

Soil Deformation Offshore

 For the purposes of undertaking the analyses referred to in section 41, the analysis for determining the deformation of foundations offshore shall be made in accordance with sections 5.2.4, 6.1.3, 7.1.3, 8.1.3 and 9.2.4 of Canadian Standards Association CAN/CSA-S472-92, Foundations, Offshore Structures.

Erosion Offshore

  •  (1) For the purposes of undertaking the analyses referred to in section 41, the analysis of the erosion offshore shall be made in accordance with sections 6.2.3, 7.2.2 and 9.3.5 of Canadian Standards Association CAN/CSA-S472-92, Foundations, Offshore Structures.

  • (2) Where there is a potential for erosion around an offshore platform to a degree that would affect the stability of the platform, the platform shall be

    • (a) provided with means of erosion protection that eliminate or prevent that degree of erosion; or

    • (b) designed assuming all materials that are not resistant to erosion, determined from physical or numerical modelling, are removed.

  • (3) The operator of an offshore platform or drilling unit that is placed so close to an existing offshore platform as to cause erosion that affects the stability of the existing platform shall take measures to prevent that erosion.

Materials for Offshore Installations

  •  (1) Notwithstanding compliance with the standards referred to in this Part, all materials used in an offshore installation shall be suitable for the service in which, and for the conditions under which, they are used.

  • (2) No materials other than non-combustible materials shall be used in an offshore installation except where a special property is required that cannot be obtained by using a non-combustible material.

  • (3) Subject to subsection (4), materials, such as organic foam insulation, that may give off toxic fumes or smoke when ignited shall not be used in an offshore installation.

  • (4) Combustible foam insulation may be used for cold storage or refrigerated spaces on an offshore installation if

    • (a) the foam is of a fire retardant type;

    • (b) the foam is totally enclosed in stainless steel or another corrosion-resistant material that has all joints sealed; and

    • (c) the insulation and its casing does not form any part of the accommodation deck or bulkhead.

  • (5) All structural concrete used in an offshore installation shall be in accordance with sections 4, 5 and 6 of Canadian Standards Association Preliminary Standard S474-M1989, Concrete Structures.

  • (6) All structural steel used in an offshore installation shall be in accordance with sections 5, 6 and 17 of Canadian Standards Association CAN/CSA-S473-92, Steel Structures, Offshore Structures.

 
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