API 686
MECHANICAL INSTALLATION FOR ROTATING AND STATIC EQUIPMENT
1. - To provide the guideline & steps for carrying out static and rotating equipment installation, combination according to vendor specification, relevant construction drawings and company specification.
This applies for all Static and Rotating Equipment Installation in Wellhead Platform that comes under Direct Lifting and Skidding
and positioning Equipment at the Module.
34. Definition
-
MECH – Mechanical
-
PMT – Project Management Team
-
RA – Risk Assessment
-
WMS –Work Method Statement
-
PSI – Personal safety involvement
-
DC – Dimensional Control
-
GA – General Arrangement
Responsibilities
PMT Supervisor/Task Supervisor
-
Pre-Job Briefing and Risk Assessment shall be carried
out by supervisors before commencing a specific activity.
-
Ensure all lifting appliances are in good condition
& with valid certificate/tags are available during lifting operation.
-
In order to avoid unauthorized entry, barricade the
lifting area.
-
Lifting plan to
be filled in and signed off.
Equipment / Tools
-
Use of Mechanical handling Equipment – Crane for
lifting, Hydraulic Jacks, Hydraulic Pumps, Chain blocks, Web Slings, Rollers, Trifor
etc.,
-
Measuring Tools (automatic level,)
-
Welding & Grinding sets
-
Spanner Set, Torque Wrench.
-
A frame ladders (less than 3m).
Procedure / Work Methods
Pre-requisite
1.1
Apply Permit for Work (Hot work permit) and Lifting
Permit.
1.2 Conduct pre-job briefing & Risk Assessment briefing with Supervisor and Involved team.
1.3
Ensure lifting path are clear of obstacle, barricade/cordon
off the lifting zone.
1.4
Use approved lifting plan, Lifting procedure and vendor GA drawing,
Lifting arrangement drawing for lifting points and fix lifting appliances
accordingly.
1.5
For Packages, Vessels & Skids weighing 20 Tons and above,
engineering specified Lifting Procedure or vendor drawing to be incorporated.
1.6
Authorized & qualified lifting personnel viz lifting supervisors,
riggers and signalman are to be involved in the respective activities.
1.7
For rigging/de-rigging activities like installation of “D” Shackles and
Slings, proper use of A-Frame ladder (less than 3m. If approach is high and out
of reach, temporary scaffolding to be used.
1.8 Only used certified lifting gear and appliances.
EQUIPMENT INSTALLATION WITH SUPPORT PADS/AVM
2.1
For support Pad/AVM come along with
the equipment for installation, which to be located on respective doubler
plates and positioned as per equipment layout drawing. This positioning to
follow as per Vendor Foot print with reference to the grid lines and Datum
point as specified in Vendor GA and equipment layout Drg.
2.2 DC checks to be done after positioning of
the support pad and recorded before welding
2.3 Welding of support pads/AVM, followed by
NDT.
2.4 DC
check after welding.
2.5
Grinding & Coat back on the
weld joint area. Surface
preparation, painting & QC inspection of the welded doubler plate and
support pad before placing the equipment on the support pads.
3.1 Crane of correct lifting capacity to be
parked at site near to module for off-loading and lifting the equipment to Temporary
skidding platform.
Use
of Vendor supplied or Main Contractor operation certified Lifting gears as per vendor or
engineering lifting plan.
Pre-check
the skid rollers and maintained in good condition before put into the
operation.
4.4 Verify the
orientation of the equipment with PDMS & GA drawings.
Carryout the leveling of the equipment to meet the leveling tolerance as specified in equipment installation procedure. This involves shimming on the support pads.
5.1 Installation of Vendor supplied foundation Bolts and Torqueing.
5.2 DC check on final installation and recording.
5.3 Proper housekeeping after complete the equipment skidding.
4)
Equipment
Lifting at site
4.1 Correct crane capacity to be parked at storage yard for lifting of the equipment.
4.2 Lifting arrangement is to follow the vendor supplied lifting plan/procedure or as specified by Engineering dept.
4.3 Ensure all the
lifting gears and appliances used are
certified and as per lifting plan.
4.4 Pad eye must be fully welded with MPI if used for lifting equipment.
4.5 For
crane adaptor install on top of crane column, final derigging to be done only
after the crane adaptor secure with guide plate and welded. Ensure safe working
platform available.
4.6 By giving proper signals to the crane operator by the signal man, equipment is to be lifted and positioned on the location at module
4.7 The orientation & positioning of the equipment to be verified with GA drawing & PDMS snaps.
4.8 After the equipment has been properly positioned, release the slings and de-rig the shackles with adequate and safe work platform
4.9 Proper housekeeping after complete the
equipment skidding.
TYPICAL VENDOR LIFTING PLAN
