prEN ISO 19901-8
(Main)Petroleum and natural gas industries - Specific requirements for offshore structures - Part 8: Marine soil investigations (ISO/DIS 19901-8:2021)
Petroleum and natural gas industries - Specific requirements for offshore structures - Part 8: Marine soil investigations (ISO/DIS 19901-8:2021)
ISO 19901-8:2014 specifies requirements, and provides recommendations and guidelines for marine soil investigations regarding:
a) objectives, planning and execution of marine soil investigations;
b) deployment of investigation equipment;
c) drilling and logging;
d) in situ testing;
e) sampling;
f) laboratory testing; and
g) reporting.
Rock materials are only covered by ISO 19901-8:2014 to the extent that ordinary marine soil investigation tools can be used, e.g. for chalk, calcareous soils, cemented soils or similar soft rock.
ISO 19901-8:2014 is intended for clients, soil investigation contractors, designers, installation contractors, geotechnical laboratories and public and regulatory authorities concerned with marine soil investigations for any type of offshore and nearshore structures, or geohazard assessment studies, for petroleum and natural gas industries.
Erdöl- und Erdgasindustrie - Spezielle Anforderungen für Offshore-Anlagen - Teil 8: Meeresbodenuntersuchungen (ISO/DIS 19901-8:2021)
Industries du pétrole et du gaz naturel - Exigences spécifiques relatives aux structures en mer - Partie 8: Investigations des sols en mer (ISO/DIS 19901-8:2021)
L'ISO 19901-8:2014 spécifie des exigences, des recommandations et des lignes directrices pour la reconnaissance des sols en mer, concernant :
a) les objectifs, la planification et l'exécution de la reconnaissance des sols en mer ;
b) le déploiement de l'équipement de reconnaissance ;
c) le forage et la diagraphie ;
d) les essais in situ ;
e) l'échantillonnage ;
f) les essais en laboratoire ; et
g) l'établissement de rapports.
Les matériaux rocheux ne sont traités dans l'ISO 19901-8:2014 que dans la mesure où des outils ordinaires de reconnaissance des sols en mer peuvent être utilisés, par exemple pour les sols crayeux, calcaires, les sols consolidés ou une roche tendre similaire.
Industrija za predelavo nafte in zemeljskega plina - Posebne zahteve za naftne ploščadi - 8. del: Preiskave morskega dna (ISO/DIS 19901-8:2021)
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN ISO 19901-8:2022
01-februar-2022
Industrija za predelavo nafte in zemeljskega plina - Posebne zahteve za naftne
ploščadi - 8. del: Preiskave morskega dna (ISO/DIS 19901-8:2021)
Petroleum and natural gas industries - Specific requirements for offshore structures -
Part 8: Marine soil investigations (ISO/DIS 19901-8:2021)Erdöl- und Erdgasindustrie - Spezielle Anforderungen für Offshore-Anlagen - Teil 8:
Meeresbodenuntersuchungen (ISO/DIS 19901-8:2021)Industries du pétrole et du gaz naturel - Exigences spécifiques relatives aux structures
en mer - Partie 8: Investigations des sols en mer (ISO/DIS 19901-8:2021)Ta slovenski standard je istoveten z: prEN ISO 19901-8
ICS:
75.180.10 Oprema za raziskovanje, Exploratory, drilling and
vrtanje in odkopavanje extraction equipment
oSIST prEN ISO 19901-8:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN ISO 19901-8:2022
DRAFT INTERNATIONAL STANDARD
ISO/DIS 19901-8
ISO/TC 67/SC 7 Secretariat: BSI
Voting begins on: Voting terminates on:
2021-12-16 2022-03-10
Petroleum and natural gas industries — Specific
requirements for offshore structures —
Part 8:
Marine soil investigations
Industries du pétrole et du gaz naturel — Exigences spécifiques relatives aux structures en mer —
Partie 8: Investigations des sols en merICS: 75.180.10
This document is circulated as received from the committee secretariat.
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© ISO 2021 – All rights reserved
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ISO/DIS 19901-8:2021(E)
1 Scope .................................................................................................................................................................... 1
2 Normative references .................................................................................................................................... 2
3 Terms and definitions .................................................................................................................................... 2
4 Symbols, units and abbreviated terms .................................................................................................... 6
4.1 Symbols ............................................................................................................................................................... 6
4.2 Units ...................................................................................................................................................................... 7
4.3 Abbreviated terms .......................................................................................................................................... 7
5 Objectives, planning and requirements .................................................................................................. 9
5.1 Objectives ........................................................................................................................................................... 9
5.2 Planning ........................................................................................................................................................... 10
5.2.1 Sequence of activities .................................................................................................................................. 10
5.2.2 Integrated geoscience studies .................................................................................................................. 12
5.3 Scope of work and development of project specifications ............................................................ 12
5.4 Health, safety and environmental requirements for marine operations ................................. 13
5.4.1 General ............................................................................................................................................................. 13
5.4.2 Investigation vessel ..................................................................................................................................... 13
5.4.3 Hazardous substances and acoustic noise ........................................................................................... 14
5.4.4 Shallow gas ...................................................................................................................................................... 14
5.5 Other requirements ..................................................................................................................................... 15
5.5.1 Operational requirements ........................................................................................................................ 15
5.5.2 Quality requirements .................................................................................................................................. 15
5.5.3 Specific considerations for unconventional soils ............................................................................. 15
6 Deployment of investigation equipment .............................................................................................. 16
6.1 Non-drilling mode deployment ............................................................................................................... 16
6.2 Drilling mode deployment ........................................................................................................................ 16
6.2.1 General ............................................................................................................................................................. 16
6.2.2 Vessel drilling ................................................................................................................................................ 17
6.2.3 Seafloor drilling ............................................................................................................................................. 17
6.3 Accuracy of vertical depth measurements .......................................................................................... 17
6.3.1 General ............................................................................................................................................................. 17
6.3.2 Factors affecting the accuracy of vertical depth measurements ................................................. 18
6.3.3 Depth accuracy classes ............................................................................................................................... 18
6.4 Horizontal positioning ................................................................................................................................ 19
6.5 Interaction of investigation equipment with the upper seabed .................................................. 19
7 Drilling and logging...................................................................................................................................... 19
7.1 General ............................................................................................................................................................. 19
7.2 Project-specific drilling requirements ................................................................................................. 20
7.3 Drilling objectives and selection of drilling equipment and procedures ................................. 20
7.4 Drilling operations plan ............................................................................................................................. 21
7.5 Recording of drilling parameters ........................................................................................................... 21
7.6 Borehole geophysical logging .................................................................................................................. 22
7.6.1 General ............................................................................................................................................................. 22
7.6.2 Reporting of results ..................................................................................................................................... 22
8 In situ testing .................................................................................................................................................. 23
8.1 General ............................................................................................................................................................. 23
8.2 General requirements for the documentation of in situ tests ...................................................... 23
8.3 Cone penetration test .................................................................................................................................. 24
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8.3.1 General ............................................................................................................................................................. 24
8.3.2 Equipment ...................................................................................................................................................... 24
8.3.3 Test procedures ............................................................................................................................................ 25
8.3.4 Procedures for testing offshore .............................................................................................................. 27
8.3.5 Presentation of test results and reporting .......................................................................................... 29
8.4 Pore pressure dissipation test ................................................................................................................ 30
8.4.1 General ............................................................................................................................................................. 30
8.4.2 Equipment ...................................................................................................................................................... 31
8.4.3 Test procedure .............................................................................................................................................. 31
8.4.4 Presentation of results ............................................................................................................................... 31
8.5 Ball and T-bar penetration tests ............................................................................................................. 32
8.5.1 General ............................................................................................................................................................. 32
8.5.2 Equipment ...................................................................................................................................................... 34
8.5.3 Ball and T-bar conformity assessment ................................................................................................. 34
8.5.4 Test procedures to be followed offshore ............................................................................................. 34
8.5.5 Presentation of test results and reporting .......................................................................................... 35
8.6 Seismic cone penetration test .................................................................................................................. 36
8.6.1 General ............................................................................................................................................................. 36
8.6.2 Equipment ...................................................................................................................................................... 37
8.6.3 Test procedures ............................................................................................................................................ 37
8.6.4 Presentation of results ............................................................................................................................... 38
8.7 Other in situ tests ......................................................................................................................................... 38
8.7.1 General ............................................................................................................................................................. 38
8.7.2 Documentation requirements ................................................................................................................. 39
9 Sampling .......................................................................................................................................................... 39
9.1 Purpose and objectives of sampling ...................................................................................................... 39
9.2 Sampling systems ......................................................................................................................................... 39
9.3 Selection of samplers .................................................................................................................................. 40
9.3.1 General ............................................................................................................................................................. 40
9.3.2 Drilling mode samplers ............................................................................................................................. 41
9.3.3 Non-drilling mode samplers .................................................................................................................... 42
9.4 Sample recovery considerations ............................................................................................................ 43
9.5 Handling, transport and storage of samples ...................................................................................... 44
9.5.1 General ............................................................................................................................................................. 44
9.5.2 Offshore sample handling ......................................................................................................................... 44
9.5.3 Offshore storage ........................................................................................................................................... 45
9.5.4 Onshore transport, handling and storage ........................................................................................... 46
10 Laboratory testing ....................................................................................................................................... 46
10.1 General ............................................................................................................................................................. 46
10.2 Project specifications .................................................................................................................................. 46
10.3 Presentation of laboratory test results ................................................................................................ 47
10.4 Instrumentation, calibration and data acquisition .......................................................................... 47
10.5 Preparation of soil specimens for testing ........................................................................................... 48
10.5.1 Minimum sample size and specimen dimensions ............................................................................ 48
10.5.2 Preparation of disturbed samples and soil batching ...................................................................... 48
10.5.3 Preparation of undisturbed specimens (fine-grained soils) ........................................................ 48
10.5.4 Laboratory-prepared compacted and reconstituted specimens ................................................ 49
10.5.5 Preparation of remoulded samples ....................................................................................................... 51
10.6 Evaluation of intact sample quality ....................................................................................................... 51
11 Reporting ........................................................................................................................................................ 52
11.1 Definition of reporting requirements ................................................................................................... 52
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11.2 Presentation of field operations and factual data ............................................................................ 52
11.3 Data interpretation and soil parameters ............................................................................................. 53
Annex A (informative) Additional information and guidance ................................................................... 55
A.1 Scope ................................................................................................................................................................. 55
A.2 Normative references ................................................................................................................................. 55
A.3 Terms and definitions ................................................................................................................................. 55
A.4 Symbols, units and abbreviated terms ................................................................................................. 55
A.5 Objectives, planning and requirements ............................................................................................... 55
A.5.1 Objectives ........................................................................................................................................................ 55
A.5.2 Planning ........................................................................................................................................................... 55
A.5.3 Scope of work ................................................................................................................................................. 60
A.5.4 Health, safety and environmental requirements for marine operations ................................. 60
A.5.5 Other requirements ..................................................................................................................................... 65
A.6 Deployment of investigation equipment .............................................................................................. 67
A.6.1 Non-drilling mode deployment ............................................................................................................... 67
A.6.2 Drilling mode deployment ........................................................................................................................ 67
A.6.3 Accuracy of vertical depth measurements .......................................................................................... 67
A.6.4 Horizontal positioning ................................................................................................................................ 73
A.6.5 Interaction of investigation equipment with the seafloor ............................................................. 73
A.7 Drilling and logging...................................................................................................................................... 74
A.7.1 General ............................................................................................................................................................. 74
A.7.2 Project-specific drilling requirements ................................................................................................. 74
A.7.3 Drilling objectives and selection of drilling equipment and procedures ................................. 74
A.7.4 Drilling operations plan ............................................................................................................................. 78
A.7.5 Recording of drilling parameters ........................................................................................................... 78
A.7.6 Borehole geophysical logging .................................................................................................................. 78
A.8 In situ testing .................................................................................................................................................. 81
A.8.1 General ............................................................................................................................................................. 81
A.8.2 General requirements for the documentation of in situ tests ...................................................... 81
A.8.3 Cone penetration test .................................................................................................................................. 81
A.8.4 Pore pressure dissipation test ................................................................................................................. 85
A.8.5 Ball and T-bar penetration test ............................................................................................................... 85
A.8.6 Seismic cone penetration test .................................................................................................................. 85
A.8.7 Other in situ tests .......................................................................................................................................... 87
A.9 Sampling .......................................................................................................................................................... 88
A.9.1 Purpose and objectives of sampling ...................................................................................................... 88
A.9.2 Sampling systems ......................................................................................................................................... 88
A.9.3 Selection of samplers .................................................................................................................................. 88
A.9.4 Sample recovery considerations ............................................................................................................. 94
A.9.5 Handling, transport and storage of samples ....................................................................................... 94
A.10 Laboratory testing ........................................................................................................................................ 97
A.10.1 General ............................................................................................................................................................. 97
A.10.2 Project specifications .................................................................................................................................. 97
A.10.3 Presentation of laboratory test results ................................................................................................ 97
A.10.4 Instrumentation, calibration and data acquisition .......................................................................... 97
A.10.5 Preparation of soil specimens for testing ............................................................................................ 97
A.10.6 Evaluation of intact sample quality ........................................................................................................ 97
A.11 Reporting ......................................................................................................................................................... 97
A.11.1 Definition of reporting requirements ................................................................................................... 97
A.11.2 Presentation of field operations and factual data ............................................................................ 98
A.11.3 Data interpretation and soil parameters .......................................................................................... 100
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Annex B (normative) Procedures for calibration and verification of cone penetrometers ......... 103
B.1 Environment and preparation .............................................................................................................. 103
B.2 Measuring intervals for calibration..................................................................................................... 103
B.3 Symbols .......................................................................................................................................................... 104
B.4 Cone resistance and sleeve friction calibration .............................................................................. 105
B.4.1 General ........................................................................................................................................................... 105
B.4.2 Test method ................................................................................................................................................. 105
B.4.3 Assessment of calibration uncertainty ............................................................................................... 107
B.4.4 Calibration results ......................................................................................................................
...
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