Construction and Engineering

Origin: ISO
Close date: Oct 31, 2021
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This document provides requirements and guidelines for marine geophysical investigations. It is applicable to operators/end users, contractors and public and regulatory authorities concerned with marine site investigations for offshore structures for petroleum and natural gas industries. 

This document provides requirements, specifications, and guidance for:

a) objectives, planning, and quality management;
b) positioning;
c) seafloor mapping, including instrumentation and acquisition parameters, acquisition methods, and deliverables;
d) sub-seafloor mapping, including seismic instrumentation and acquisition parameters, and non-seismic-reflection methods;
e) reporting;
f) data integration, interpretation, and investigation of geohazards.

This document is applicable to investigation of the seafloor and the sub-seafloor, from shallow coastal waters to water depths of 3 000 m and more. It provides guidance for the integration of the results from marine soil investigations and marine geophysical investigations with other relevant datasets.

NOTE 1 The depth of interest for sub-seafloor mapping depends on the objectives of the investigation. For offshore construction, the depths of investigation are typically in the range 1 m below seafloor to 200 m
below seafloor. Some methods for sub-seafloor mapping can also achieve much greater investigation depths, for example for assessing geohazards for hydrocarbon well drilling.

There is a fundamental difference between seafloor mapping and sub-seafloor mapping: seafloor signal resolution can be specified, while sub-seafloor signal resolution and penetration cannot. This document therefore contains requirements for the use of certain techniques for certain types of seafloor mapping and sub-seafloor mapping (similarly, requirements are given for certain aspects of data processing). If other techniques can
be shown to obtain the same information, with the same or better resolution and accuracy, then those techniques may be used.

Mapping of pre-drilling well-site geohazards beneath

2NOTE 2 This implies depths of investigation that are typically 200 m below the first pressure-containment casing string or 1 000 m below the seafloor, whichever is greatest. Mapping of pre-drilling well-site geohazards is therefore the deepest type of investigation covered by this document.

In this document, positioning information relates only to the positioning of survey platforms, sources and receivers. The processes used to determine positions of seafloor and sub-seafloor data points are not covered in this document.

Guidance only is given in this document for the use of marine shear waves (A.8.3.3), marine surface waves (A.8.3.4), electrical resistivity imaging (A.8.3.5) and electromagnetic imaging (A.8.3.6). 

Origin: ISO
Close date: Oct 31, 2021
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This document specifies requirements and provides recommendations applicable to the following types of fixed steel offshore structures for the petroleum and natural gas industries:
- caissons, free-standing and braced;
- jackets;
- monotowers;
- towers.

In addition, it is applicable to compliant bottom founded structures, steel gravity structures, jack-ups, other bottom founded structures and other structures related to offshore structures (such as underwater
oil storage tanks, bridges and connecting structures).

This document contains requirements for planning and engineering of the design, fabrication, transportation and installation of new structures as well as, if relevant, their future removal.


NOTE 1 Specific requirements for the design of fixed steel offshore structures in arctic environments are presented in ISO 19906.

NOTE 2 Requirements for topsides structures are presented in ISO 19901-3; for marine operations in, ISO 19901‑6; for structural integrity management, in ISO 19901-9 and for the site-specific assessment of jack-ups, in ISO 19905‑1.

 

Origin: ISO
Close date: Oct 31, 2021
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This document specifies requirements and provides recommendations applicable to fixed, floating and grounded concrete offshore structures for the petroleum and natural gas industries and for structures supporting nationally-important power generation, transmission or distribution facility. This document specifically addresses
— the design, construction, transportation and installation of new structures, including requirements for in-service inspection and possible removal of structures,
— the assessment of structures in service, and
— the assessment of structures for reuse at other locations.

This document is intended to cover the engineering processes needed for the major engineering disciplines to establish a facility for offshore operation.

To align Canadian requirements with those of international standards in Offshore Structures (adoption of new edition) This proposed New Edition is being developed at the request of Technical Committee on Offshore Structures (TCK157). It will provide the industry with requirements on Concrete Offshore Structures. This is part of a suite of Standards (CAN/CSA ISO 19900 series) that are used in the design and operation of Offshore Structures in Canada. Offshore structures operate in an environment exposed to the hazards of storms and drifting icebergs. The safety and security of offshore workers requires a secure working environment. The ISO 19900 series offshore structures standards address the basic safety of fixed
and floating offshore structures, requiring a high level of reliability which benefits the safety and well-being of workers on these structures. These requirements also reduce the likelihood of damage to the environment. Safe design and operation Standards also allows Canadian and International Engineers to prevent disasters to the Canadian public and environment.

Origin: CSA
Close date: Nov 30, 2021
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1.1 General

This standard contains best practice guidance for the design and construction of low-rise, wood-frame buildings to withstand high winds corresponding to EF-2 tornado level wind speeds, assumed to be associated with a reference velocity pressure of q = 1 kPa. The guidance in this standard is based on and written to supplement the requirements specified in Part 9 of the National Building Code (see Clause 0.4).

1.2 Applicability & Limitations

The guidance in this standard has been developed primarily for new construction of buildings constructed with wood-frame construction. The resistance to high wind speeds up to an EF-2 level requires adherence to all provisions and recommendations in this standard.

1.3 Alterations and Additions

This standard can be applied to major alterations and additions to existing buildings where the entire continuous vertical and lateral load path can be upgraded with all primary structural requirements. For alterations and additions of existing building where the entire continuous vertical and lateral load path cannot be upgraded, starting with non-structural measures provided in Clauses 11 through 15 are recommended.  For more information, see clause 0.3.

In cases where a requirement or method in a standard that is referenced in a regulation conflicts with recommendations in this Standard, the regulatory requirements take precedence. For more information, see clause 0.4.

1.4 Terminology

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses are intended to provide additional, explanatory, helpful information.

Notes to tables and figures are considered part of the table or figure and may therefore be written as guidance and recommendations.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.