1. GENERAL
This
specification defines minimum quality and technical standards governing general
offshore activities. This
specification is to be used in conjunction with the following documents:
• Basis of Design 84506-60-00-2L-060
• General
Specification 84506-60-00-2L-000 - Definitions
and Specification Directory
• General
Specification 84506-60-00-2L-010 - Quality Assurance / Quality Control
CONTRACTOR
shall perform the WORK governed by this Specification, including furnishing
labor, materials, tools, equipment, installation aids, operations and
incidentals necessary to complete installation of the FACILITIES at the SITE,
as detailed in the CONTRACT Documents and Project Drawings, and CONTRACTOR
shall meet all applicable requirements of the AUTHORITIES.
CONTRACTOR
shall be responsible for all interfaces and communications with COMPANY and
third-party installations. The control
of marine operations within a 500 m radius of an installation shall be the
responsibility of the offshore installation manager (OIM). The OIM has overriding authority to permit
the entry of CONTRACTOR vessels into the 500 m zone and to control their
activities when working within the zone.
All activities within the 500 m zone shall be conducted in accordance
with the installation Permit to Work system.
CONTRACTOR
shall be responsible for coordinating with third parties to minimize the impact
of construction related activity on the activities of others.
2. CONTINGENCY PLANS
CONTRACTOR
shall prepare contingency plans to respond to unplanned circumstances that
CONTRACTOR can identify based on prior experience. The contingency plans shall include the
following as a minimum:
•
Anchor
slipping or anchor winch / cable failure
•
Positioning
system failure
•
Pile
driving early refusal
•
Lifting
system failure (cranes / slings etc.)
• Emergency
dewatering, in case of pipeline flooding (intentionally or otherwise) during
pipelay for reasons other than routine hydrotesting
• Pipeline
repair in case of unacceptable pipeline installation damage or hydrostatic test
leaks
•
Emergency
pipeline abandonment
•
Abandonment
and recovery cable failure
•
Loss
of vessel power or position
•
Pipeline
touchdown outside the pipeline corridor
•
Tensioner
breakdown
•
PLEM/manifold recovery from the seabed
•
Buckle repair to pipeline
•
Stuck Pig Removal
•
Umbilical Pull-in contingency plan.
•
Umbilical recovery and repair.
•
Emergency umbilical abandonment.
2.1 Contingency plans shall identify
specialized equipment, tools and personnel required, that CONTRACTOR shall
provide on SITE, or on standby at short notice and shall cover the full range
of water depths at the SITE and along any pipeline route.
3. MARINE EQUIPMENT
3.1 CONTRACTOR
shall furnish a complete purpose built marine installation spread, capable of
safely installing the FACILITIES in the water depths, seabed conditions and
environmental conditions encountered.
3.2 CONTRACTOR shall maintain all marine
equipment in a good and serviceable condition during the WORK. Installation vessel(s), including any derrick
barge, lay barge, derrick / lay barge, diving support vessel (DSV), tug, supply
vessel, survey vessel, cargo barge,
shall possess all international certificates, classifications, licenses and
permits required by the AUTHORITIES to conduct safe operations at the
SITE. CONTRACTOR shall keep all these
documents in full force and effect throughout the WORK duration. All such documentation shall be submitted to
COMPANY for review. The COMPANY reserves the right to review and conduct safety
audits throughout the assignment period.
All non-conformances shall be immediately rectified and a program for
corrective action put in place.
3.3 CONTRACTOR shall ensure that all
equipment used offshore has the relevant up to date certification. CONTRACTOR
will function test and / or load test all equipment to be used during
installation, as part of the mobilisation. Equipment failing function test
and/or load test requirement will be repaired and re-tested where possible or
rejected and removed from the vessel. CONTRACTOR will supply test procedures
for COMPANY approval for all major equipment.
Tests shall be performed in COMPANY presence.
3.4 CONTRACTOR shall provide COMPANY with
transportation to, from and between all CONTRACTOR vessel(s) and onshore
support base(s). Transportation shall be
of the same quality as provided for CONTRACTOR supervisory personnel, shall be
maintained in a safe and seaworthy (or airworthy) manner in accordance with
regulatory standards of the relevant Marine and Aviation Authorities, acceptable
to COMPANY, and shall be adequate for the expected weather conditions at the
SITE.
3.5 CONTRACTOR shall furnish suitable board
and lodgings, including private office and sanitary facilities, meals and
assistance required for COMPANY or third party representatives during offshore
operations.
3.6 CONTRACTOR shall provide communications,
including but not limited to cellular / satellite telephones, facsimile
machines, e-mail, and
radios, to enable reliable communication between the offshore construction
spread(s) and all supporting vessel(s) in the vicinity of the SITE and any
onshore engineering and administrative offices and any onshore construction
sites. CONTRACTOR shall provide
qualified operators, and sufficient communications to ensure reliability and
redundancy, to support communications on a 24-hour-a-day basis.
3.7 CONTRACTOR shall retain Company-approved weather forecasting
services, and shall provide continuous weather monitoring during the WORK. Weather monitoring data and weather forecasts
shall be furnished daily to COMPANY offshore.
3.8 CONTRACTOR shall submit to COMPANY
relevant information on the installation vessel(s) and equipment to be used for
the WORK for approval 30 days prior to mobilisation, including all applicable
equipment for installation of the FACILITIES, and shall also include
descriptions of the operations to be performed by the installation vessel(s).
•
Vessel(s)
description, including draft, plan and profile dimensions, mooring systems,
deck storage space, equipment, fuel and water capacities, communication
equipment, accommodations, experience record, weather limitations (initial and
operational), crew number and any other attributes which make the vessel(s)
appropriate for the WORK.
•
Approved
Specifications and / or certified drawings of pipeline installation equipment
(abandonment and recovery winches, cranes, davits, tensioners, buoys and any
other equipment required for pipeline installation), including general layouts
and performance criteria.
•
Drawings
of strengtheners, shoes, rollers and supports required to maintain pipeline
profile geometry.
•
Number
of divers and diving equipment (air pumps, decompression chambers, gas storage,
underwater burning gear, hydraulic stud tensioners), including diving spread
depth limitations.
•
Specification
and capabilities of survey related equipment (positioning systems, depth
sensors, profilers, scanners, magnetometers, video and still cameras, onboard
computers, monitors, processing and reporting equipment) both on survey and
installation vessels.
•
Remotely
Operated Vehicle (ROV), including depth limitations, lifting capacity, tether
length, spread equipment.
•
Certificates
showing the vessel(s) may work in the waters, may enter the ports, and are in
compliance with all relevant regulations required by the AUTHORITIES at the
SITE.
•
Current
classification documents.
3.9 Following COMPANY acceptance,
installation vessel(s) and major equipment shall not be changed without prior
written COMPANY approval.
3.10 CONTRACTOR shall ensure that all floating
craft / equipment exhibit all navigation signals and warning lights required by
the AUTHORITIES.
3.11 Equipment shall not leak fuel, hydraulic,
cooling or lubricating fluids into the marine environment. CONTRACTOR shall have on SITE manpower, containment
and clean-up equipment necessary to handle accidental spills or discharges.
3.12 CONTRACTOR shall submit for COMPANY
approval an ‘Offshore Management and Execution Plan’ and ‘Offshore Emergency
Response Procedure’ which will incorporate all vessels and works to be
performed.
4. SURVEY
4.1 COMPANY shall provide CONTRACTOR with
survey data along the pipeline routes.
CONTRACTOR shall confirm the COMPANY data to ensure its completeness and
validity and shall be fully responsible for execution of the WORK in the
vicinity of COMPANY and third-party facilities.
4.2 Offshore surveys shall be performed in
accordance with Project Specification for Offshore Survey 84506-60-00-2L-030
and As-Built Survey (84506-60-00-2L-040). CONTRACTOR surveyors and technicians shall
be qualified and experienced in oilfield construction relevant to the
WORK. COMPANY requires experience
resumes to be submitted for review and approval.
4.3 CONTRACTOR shall immediately inform
COMPANY should any unknown features, bathymetric changes or other conditions
cause potential problems or delays to the proposed WORK. COMPANY shall then determine any action(s) to
be taken, and shall instruct CONTRACTOR accordingly.
4.4 In the event CONTRACTOR is instructed to
make deviations within the construction limits (i.e. pipeline corridor or
permissible target location) due to the obstruction(s), CONTRACTOR shall ensure
the position of each FACILITY or pipeline route affected is adjusted
accordingly.
4.5 In the event CONTRACTOR is instructed to
make deviations out with the construction limits (i.e. pipeline corridor or
permissible target location) due to the obstruction(s), or if obstructions are
to be removed, CONTRACTOR shall prepare procedures listing all equipment
required, methods proposed and the estimated cost and duration to perform the
work. COMPANY shall then determine
whether CONTRACTOR shall perform the work at previously agreed additional work
rates, or at a lump sum cost provided by CONTRACTOR to perform such work.
5. POSITIONING SYSTEMS
5.1 CONTRACTOR shall provide equipment and
personnel and shall ensure surveyors and technicians are available to operate
and maintain the positioning systems with 24-hour coverage onboard each
offshore installation vessel.
5.2 Offshore positioning shall be performed
in accordance with Project Specification for Offshore Positioning Systems
84506-60-00-050.
5.3 CONTRACTOR shall ensure continuous
positioning accuracy is maintained for all vessels including installation
vessel(s), survey and
support vessels (tugs, survey boat) during adverse weather or visibility
conditions, and at night.
5.4 Wherever dynamically-positioned (DP)
vessels are used, the DP control system shall have redundancy such that failure
of any one part will not affect the vessel’s station keeping ability. Failure of any one part of the DP system
shall be indicated by an audible and visual alarm. The system shall include at least three
independent position reference systems with a minimum of two being
on-line. The DP system shall be equipped
with a duplex computer control system with provision for monitoring. Manual control with joystick and automatic
heading control shall also be available.
5.5 CONTRACTOR shall provide an
Uninterruptible Power Source (UPS) and / or battery power of sufficient
capacity to operate the positioning system for a minimum 30 minutes in the
event of power failure, onboard all vessels, structures or locations where
positioning systems are operated.
6. CABLES, PIPELINES AND STRUCTURES
6.1 CONTRACTOR shall locate and mark all
underwater cables, pipelines and structures along the pipeline routes to
COMPANY satisfaction before any installation vessel(s) reach a facility. CONTRACTOR shall, where required, contact any
interested third parties for pipeline installation over, under or around any
underwater facility.
6.2 Where a pipeline intersects subsea
pipelines, cables, or unavoidable geophysical structures, CONTRACTOR shall
install approved supports ready for the proposed pipeline. To install the proposed pipeline above the
existing facility, CONTRACTOR shall provide detailed procedures for COMPANY
approval, including:
•
Seabed
preparation / leveling
•
Protection
mattress / support placement
•
Pipelay
and touchdown monitoring over protection mattresses / supports
•
Remedial
actions if required (pipeline off supports / excessive support settlement)
6.3 Pipeline support installation shall be
performed in accordance with Company-approved
CONTRACTOR procedures. CONTRACTOR shall
provide an as-built survey of completed crossings. These inspections shall be made in the
presence of COMPANY and any other interested parties.
6.4 CONTRACTOR shall not bring mechanical
burial equipment closer than 50 m from any underwater facilities. Only previously approved jetting
procedures/methods shall be allowed adjacent to third party cables, pipelines
and other facilities within the above limits.
6.5 Details of
crossing locations and crossing drawings shall be available onboard pipeline
installation vessels prior to pipeline installation over the crossing.
6.6 CONTRACTOR
shall identify all crossings and submit to the COMPANY for approval detailed
designs and installation/construction procedures associated with each crossing.
7. ANCHORING AND MOORING
7.1 Anchoring and mooring equipment, including
anchor handling tugs (AHTs), shall be suitable for the water depths, seabed
conditions, any draft limitations and for the expected current, wave and wind
conditions at the SITE. CONTRACTOR shall
submit AHT specifications, anchoring and mooring procedures, including
contingency plans if anchors slip and all proposed anchor patterns and
catenaries for all scheduled WORK activities, for COMPANY approval prior to
mobilization of anchor barges.
7.2 CONTRACTOR shall size anchors, anchor
lines, anchor pennant lines and anchor winches to set and retrieve anchors
without anchor slipping. CONTRACTOR
shall demonstrate to the satisfaction of COMPANY that anchors selected are
capable of holding the predicted dynamic loads in the seabed encountered along
the pipeline route.
7.3 CONTRACTOR shall observe any anchoring
restrictions or prohibitions defined by COMPANY or the AUTHORITIES, prior to
starting the WORK.
7.4 CONTRACTOR shall ensure that all anchor
pennant buoys are freshly painted in a high visibility color, such as
International Orange, and if required by the AUTHORITIES they shall be marked
with reflective tape and / or automatic battery operated navigation lights.
7.5 Where CONTRACTOR sets an anchor near any
existing cable, pipeline, subsea facility, platform, marine navigation buoys,
CONTRACTOR shall ensure the anchor is deployed a minimum distance of 150 m from
the existing facilities. The anchor
cable shall at all times be a minimum horizontal distance of 15 m from the
existing facilities.
7.6 Where CONTRACTOR sets an anchor with pull
direction towards any existing cable, pipeline, subsea facility, platform,
marine navigation buoys, CONTRACTOR shall ensure the anchor is deployed a
minimum distance 200 m beyond the existing facility in the direction of pull. This distance shall be increased if required
to provide a minimum 150 m perpendicular distance from the anchor to the
existing facility.
7.7 CONTRACTOR shall attach floats, and use a
cable chaser as required, for any anchor line crossing an existing cable,
pipeline or subsea facility to ensure the anchor line is lifted a minimum 10 m
above the existing facilities during anchor deployment and minimum of 0.5 x
water depth at all other times. The
CONTRACTOR shall demonstrate this by producing anchor cable catenary analysis
and drawings in conjunction with the anchor
patterns. At all times, CONTRACTOR shall
take precautions so that no anchor line contacts any existing facility.
7.8 Anchor patterns shall show all existing
facilities, pipelines, cables, platforms, restricted areas, water depths and
anchor holding properties of the seabed, at a scale of 1:5000. They shall be used for planning and recording
anchor and anchor cable locations during the performance of the Work.
Contractor shall
demonstrate that the proposed anchor patterns are capable of holding the vessel
on station in all anticipated weather conditions.
7.9 Anchor patterns shall be accompanied by
anchor cable catenary analysis and drawings
for the water depth at the intended location.
The catenaries shall be given for a range of cable tensions from the
minimum to the maximum working tensions.
The catenary shall include floats where necessary and state the distance
above the seabed of the cable for any given horizontal distance from the fairlead.
7.10 During anchor deployment and retrieval, any
anchor which crosses a submarine facility shall be carried on the deck of the
anchor handling vessel. It shall be well
secured by a wire of equal strength to the main winch wire and must not be
lowered over the stern of the vessel until at least 150 m clear of the
submarine facility. The use of pelican
hooks on anchor handling tugs is not permitted.
7.11 Anchors must be dropped to ±15 meters of
target locations. CONTRACTOR shall keep
a log of each anchor drop and recovery coordinate and annotate the log as
necessary if slippage is encountered.
7.12 CONTRACTOR shall demonstrate by means of a
mooring analysis that the anchor patterns near to offshore structures are
capable of holding the vessel in position assuming one anchor is
non-functional. Limit state conditions
of wind, wave and current shall be determined for the anchored vessel.
8. DYNAMIC POSITIONING
8.1 Dynamically
Positioned (DP) vessels shall be suitable for the expected environmental conditions
at the SITE. CONTRACTOR shall provide DP
procedures, for COMPANY approval, backed up by relevant data to prove the DP
vessel can safely operate on SITE under normal wind, wave, current and tide
conditions. CONTRACTOR shall also
provide contingency plans, for COMPANY approval, in the event of DP systems
failure, that the failure can be immediately detected and rectified.
8.2 CONTRACTOR shall provide DP vessels with
double, and preferably triple, redundant control systems and with sufficient
thrust to allow normal operations with the single most powerful thruster
inoperable.
8.3 CONTRACTOR shall use two but preferably
three positioning reference systems.
8.4 CONTRACTOR shall have a fully qualified
DP operator in the bridge at all times, when in the DP mode. Under no circumstances will a DP operator
leave the bridge until relieved or replaced by another qualified DP operator.
9. AIR-DRIVING OPERATIONS
CONTRACTOR
shall provide comprehensive air-diving operations, safety manuals and QA / QC
documentation, for COMPANY review and approval.
All air-diving work shall be fully in accordance with recognized current
international commercial air-diving practices and standards and regulations of
the AUTHORITIES applicable at the SITE.
9.1 CONTRACTOR shall furnish all required
air-diving equipment and supplies, which shall be in a good and serviceable
condition, shall safely support air-diving operations, and shall be maintained
in these conditions during the WORK.
9.2 CONTRACTOR air-diving equipment and
systems shall meet industry standards and be appropriate for air-diving
operations required for the WORK. An
adequate spares inventory, backup equipment and consumables shall be maintained
on SITE to maintain air diving operations.
Details of all air-diving systems, equipment and proposed layout on the
offshore spreads shall be submitted to COMPANY, for review and approval.
9.3 CONTRACTOR shall submit, for COMPANY
review and approval, current calibration certificates for all air-diving
systems and equipment, including:
•
Deck
decompression chamber(s) (DDC)
•
Air
compressors
•
Bailout
cylinders
•
Permanent
gas storage cylinders
•
Diver
transfer system (“A”-frame / winch / cable / basket etc.)
•
Pneumo
(depth) gauges
•
Diving
supervisor’s “Letter of Appointment”
9.4 Critical systems such as communications,
heating, launch / recovery and breathing gas supply / scrubbing shall have
built-in redundancy to provide immediate independent backup in case of
failure. CONTRACTOR shall maintain any spares
required to fix or replace damaged equipment, and where applicable, spare
equipment shall be certified.
9.5 CONTRACTOR air-diving supervision,
technicians and divers shall all be qualified and experienced in oilfield
construction relevant to the WORK, and air-diving teams shall be of adequate
size to maintain continuity throughout the WORK. COMPANY may request experience resumes for
air diving personnel and operational organizational structure details are to be
submitted to COMPANY for review and approval.
9.6 CONTRACTOR shall provide, for COMPANY
approval, an emergency plan, specific to the SITE to provide for the evacuation
and treatment of air-diving casualties.
9.7 CONTRACTOR shall provide, for COMPANY
approval, detailed air-diving procedures, which shall include personnel,
materials, tools and equipment requirements.
Sketches and calculations shall be included to clarify and verify
procedures as appropriate.
9.8 CONTRACTOR shall maintain air-diving
logbooks (IMCA approved) including any accident reports. An individual dive sheet shall be prepared
giving details for each dive and all documents shall contain diver names, and
be signed by the on-duty and any relief air-diving supervisors. Copies of these documents shall be provided
to COMPANY.
9.9 CONTRACTOR shall utilize helmet mounted,
underwater video cameras connected to a video screen accessible to COMPANY
onboard the installation vessel.
9.10 CONTRACTOR shall record all diving
activities and provide a VHS video recorder, and permanent VHS / VCD records,
to COMPANY for all major underwater inspection and installation activities.
10. SATURATION-DIVING OPERATIONS
CONTRACTOR
shall provide comprehensive saturation-diving operations, safety manuals and QA
/ QC documentation, for COMPANY review and approval. All saturation-diving work shall be fully in
accordance with recognized current international commercial saturation diving
practices and standards and regulations of the AUTHORITIES applicable at the
SITE.
10.1 CONTRACTOR shall furnish all required
saturation-diving equipment and supplies, which shall be in a good and
serviceable condition, shall safely support saturation-diving operations, and
shall be maintained in these conditions during the WORK.
10.2 CONTRACTOR saturation-diving equipment and
systems shall meet industry standards and be appropriate for saturation-diving
operations required for the WORK. An
adequate spares inventory, backup equipment and consumables shall be maintained
on SITE to maintain saturation-diving operations. Details of all saturation-diving systems,
equipment and proposed layout on the offshore spreads shall be submitted to
COMPANY, for review and approval.
10.3 CONTRACTOR shall submit, for COMPANY review
and approval, current calibration certificates for all saturation-diving
systems and equipment, including as applicable:
•
Saturation
system chamber(s)
•
Saturation
system chamber port(s)
•
Diving
bell
•
Diving
bell port
•
Diving
bell gas cylinders
•
Diving
bell ballast weight system
•
Main
diving bell wire
•
Diving
bell umbilical
•
Diving
bell handling system
•
Guide
wire winch
•
Deck
decompression chamber(s) (DDC)
•
Air
compressors
•
Bailout
cylinders
•
Permanent
gas storage cylinders
•
Diving
bell handling system (“A”-frame / winch / cable / umbilicals etc.)
•
Hot
water boiler
•
Environmental
control units
•
Pneumo
(depth) gauges
•
Diving
supervisor’s “Letter of Appointment”
Prior
to commencing use, CONTRACTOR shall demonstrate the operability and safety
systems of the units.
10.4 Critical systems such as communications,
heating, launch / recovery and breathing gas supply / scrubbing shall have
built-in redundancy to provide immediate independent backup in case of
failure. CONTRACTOR shall maintain any
spares required to fix or replace damaged equipment, and where applicable,
spare equipment shall be certified.
10.5 CONTRACTOR saturation diving supervision,
technicians and divers shall all be qualified and experienced in oilfield
construction relevant to the WORK, and saturation diving teams shall be of
adequate size to maintain continuity throughout the WORK. COMPANY may request experience resumes for
review and approval, and saturation diving personnel and operational
organizational structure details shall be submitted to COMPANY, for review and
approval.
10.6 CONTRACTOR shall provide for COMPANY
approval, an emergency plan, specific to the SITE, to provide for the
evacuation and treatment of saturation diving casualties.
10.7 CONTRACTOR shall provide, for COMPANY
approval, detailed saturation diving procedures, which shall include personnel,
materials, tools and equipment requirements.
Sketches and calculations shall be included to clarify and verify
procedures as appropriate.
10.8 CONTRACTOR shall maintain approved
saturation diving logbooks including any accident reports. An individual dive sheet shall be prepared
giving details for each dive / bell run and all documents shall contain diver
names, and be signed by the on-duty and any relief saturation diving
supervisors. Copies of these documents
shall be provided to COMPANY.
10.9 CONTRACTOR shall utilize helmet mounted,
underwater video cameras connected to a video screen accessible to COMPANY
onboard the installation vessel, and permanently connected to VHS video
recorders.
10.10 CONTRACTOR shall record all diving
activities and provide a VHS video recorder, and permanent VHS / VCD records, to
COMPANY for all underwater installation and inspection activities as requested
by COMPANY.
11. REMOTELY OPERATED VEHICHLE (ROV) OPERATIONS
CONTRACTOR
shall provide comprehensive ROV operations, safety manuals and QA / QC
documentation, for COMPANY review and approval.
All ROV work shall be fully in accordance with recognized current
international commercial practices and standards and regulations of the
AUTHORITIES applicable at the SITE.
The
ROV and ROV operations shall be in accordance with Project Specification for
Offshore Survey 845506-60-00-2L-030 and As-Built Survey 84506-60-00-2L-040 and
shall be suitable for operation in the extreme design environmental conditions
as per the Project Basis of Design.
11.1 CONTRACTOR shall furnish all required ROV
equipment and supplies, which shall be in a good and serviceable condition,
shall safely support ROV operations, and shall be maintained in these
conditions during the WORK. The ROV
shall include:
•
VHS
video camera with pan and tilt capabilities
•
35-mm
camera with flash
•
Lights
•
Gyrocompass
•
Roll
and pitch sensors
•
Acoustic
transponders
•
Other
sensors and equipment as appropriate and as specified.
11.2 CONTRACTOR ROV equipment and systems shall
be produced by a recognized ROV manufacturer, have a proven operational history
and be appropriate for inspection and / or work functions required during the
WORK. An adequate spares inventory,
backup equipment and consumables shall be maintained on SITE to maintain ROV
operations. Details of all ROV systems,
equipment and proposed layout on the offshore spreads shall be submitted to
COMPANY, for review and approval.
11.3 CONTRACTOR shall submit, for COMPANY review
and approval, current calibration certificates for all ROV systems and
equipment, including as applicable:
•
Gyrocompass
•
Roll
and pitch sensors
•
ROV
umbilical
•
ROV
handling system (“A”-frame / winch / cable / umbilicals etc.)
11.4 CONTRACTOR shall maintain any spares
required to fix or replace damaged equipment, and where applicable, spare
equipment shall be certified.
11.5 CONTRACTOR ROV operators and technicians
shall all be experienced in oilfield construction relevant to the WORK, and ROV
teams shall be of adequate size to maintain continuity throughout the
WORK. COMPANY may request experience
resumes for review and approval.
11.6 CONTRACTOR shall maintain ROV logbooks
giving details for each ROV run, and the on-duty ROV operator shall sign all
documents. Copies of these documents
shall be provided to COMPANY.
11.7 CONTRACTOR shall provide a video screen accessible
to COMPANY onboard vessels supporting ROV operations.
11.8 CONTRACTOR shall provide a VHS video
recorder, and permanent VHS / VCD records, to COMPANY for all underwater
installation and inspection activities.
12. EQUIPMENT MONITORING AND RECORDING
12.1 CONTRACTOR shall continually monitor all
installation equipment during the WORK. Should CONTRACTOR or COMPANY find work unsatisfactory, or not in
accordance with COMPANY-approved procedures, then CONTRACTOR shall immediately
repair or revise the work to
conform to approved procedures.
12.2 CONTRACTOR shall submit abnormal monitoring
results and reports to COMPANY promptly after each inspection and shall
ultimately include all results and reports in the as-built records.
12.3 Should COMPANY representatives find any
WORK to be unsatisfactory, or not in accordance with Company-approved procedures, then CONTRACTOR shall immediately
revise the WORK to conform with approved procedures and generate a
non-conformance report. In the event
consequent actions are not made promptly, COMPANY may suspend all work until such actions have been made.
12.4 CONTRACTOR shall make parameter records
available to COMPANY representatives immediately upon demand, during WORK
execution.
12.5 Instruments providing these parameters
shall be calibrated prior to start of WORK, and CONTRACTOR shall provide
instrument calibration equipment on the installation vessel. COMPANY may direct CONTRACTOR, for good
cause, to re-calibrate any instrument.
Calibration records shall be made available to COMPANY immediately upon
demand during WORK execution.
13. UNSUPPORTED FREESPANS
CONTRACTOR
shall determine all freespan lengths and heights and correct those freespans
that exceed allowable limits, in strict accordance with Project Specification
for Freespan Correction 84506-60-30-2L-380
and shall demonstrate specification attainment via video recording
submitted to COMPANY, immediately upon completion of the work.
14. PIPELINE PROTECTION
C0NTRACTOR
shall supply procedures for pipeline protection for all risk areas such as but
not limited to platform approach and crossings.
15. GAUGING AND HYDROSTATIC TESTING
CONTRACTOR
shall perform pipeline flooding, cleaning, gauging and hydrostatic pressure
testing in accordance with Project Specification for Cleaning, Gauging and
Hydrotesting 84506-60-30-2L-390. Final
hydrotesting shall only be performed after any freespan correction and / or
pipeline backfilling is completed.
16. DAILY REPORTS
CONTRACTOR
shall submit a daily report to COMPANY from each construction vessel, including
as applicable and as a minimum:
•
Chronology
of all relevant activities.
•
Daily
logs for each vessel.
•
COMPANY
and CONTRACTOR materials on board and delivery status.
•
List
and location of all marine spread equipment.
•
Number
of CONTRACTOR and sub-contractor personnel onboard.
•
Number
of COMPANY representatives and names of visitors onboard.
•
Incidents,
accidents or spills.
•
General
weather conditions.
•
Wind,
wave and sea conditions at shift changes.
•
Reference
of any requests for change orders.
•
Survey
coverage, type of equipment deployed, KP stations
•
Work
programs for the next 24 hours.
•
Pipe
tally showing the number and type of pipejoints laid and all repairs.
•
Total
length installed in meters, by daily and cumulative totals.
•
Pipe
and Weld record.
•
Pipeline
inspection results and reports.
•
Dredged,
trenched, backfill volumes and KP stations
•
Pigging,
testing status
•
Reference to any non-conformance report
17. SITE CLEAN-UP
CONTRACTOR
shall remove from SITE all temporary work, scrap, surplus materials garbage,
temporary construction facilities and equipment, upon completion of WORK. CONTRACTOR shall restore SITE to a clean
condition equal or better than the condition prior to start of WORK.
18. AS-BUILT INFORMATION
CONTRACTOR
shall submit to COMPANY for approval “as-built” information to supplement the
documentation requirements, and showing an equivalent level of detail to that
given in “Issued for Construction” drawings, including as a minimum:
•
Route
alignment sheets showing final as installed pipeline position, including
pipeline horizontal position, elevation, weight coating thickness, backfill,
supports and other relevant details on the original alignment sheets. “As-built” information may be presented as
revisions to original Alignment Sheets issued by COMPANY.
•
COMPANY
will give the zero (starting) location to be used on CONTRACTOR “as-built”
pipeline stations (KP).
•
Structure
drawings showing final as installed horizontal position, orientation, height,
spool configuration, supports and other relevant details.
•
Pipe
and weld record of all pipejoints laid, shall be completely checked, verified
and cross-referenced to the radiographs and “as-built” alignment sheets.
•
Weld
radiographs of all pipeline welds and repairs made during the WORK.
•
Pile
driving reports for structures
•
Diving
reports in narrative and sketch form, describing findings of inspection dives.
•
Materials
reports giving an account of materials issued to CONTRACTOR by COMPANY, showing
items used, damaged or returned as surplus.
•
Survey
videos
•
Crossing
“as-built” drawings
•
Free
span correction “as-built” drawings
•
Daily reports
•
All change request and non-conformance reports
•
ITP’s
•
Pipeline Data Management System
All
documentation, and drawings,
also to be provided in COMPANY approved “electronic” format (diskette, CD, VCD,
etc.).