Indian Oil Corporation Limited Tender

Mainline Laying Works

Laying of Owner-supplied pre-coated mild steel line pipes, including arranging all additional land/construction corridor, beyond Owner's ROU/ROW, required for Contractor’s storage, fabrication, access for construction site, movement of construction equipment etc., receiving and taking over Owner-supplied materials, handling, transportation etc. from Owner’s issue point to work site, stringing along Right of Way (ROW)/ pipeline corridor, providing labour, equipment and supply of other inputs & materials/ consumables necessary to perform and complete the work in all respects in accordance with the contract including, but not limited to, the following works: Taking delivery of pre-coated/ bare pipes from the designated stockpile location (loading of pipes onto pipe trailors placed inside stockpile by mainline contractor shall be done by Owner's authorized agency), including placing of pipe trailors for taking delivery of pipes from stockpile, carrying out holiday detection and verification of pipes at the time of taking delivery), transportation of pipes to ROW/ work site/ Contractor's storage location etc., Clearing and grading of ROW/ pipeline corridor, cutting of trees, vegetation etc. including keeping record of trees cut, including de-watering etc., Stringing of pipes along ROW including providing straw bags/ soft padding (in Rocky areas requiring blasting for preparation of trench, pipes shall be strung after the blasting operation and clearing of trench and instructions of Site Engineer/ Engineer-in-Charge), Trenching to all depths to maintain clear earth cover as per specification and to fit minimum bend radius, by excavation in all kinds of terrain & soil, including stripping top soil to a depth of 30cm to the full anticipated width of the ditch and storing this material separately along the ROW to allow replacement of this material on top of the backfilled ditch (in cultivable and other areas specially designated by Owner), Carrying out repair of pipe & coating defects for defects occuring after "taking over" of pipes from Owner, replacement in the case of non-repairable defects and repairing damages to pipe coating including defects/ damages occurring during transportation & handling, # Aligning, bending, lining up, cutting and bevelling (as required) of pipes for field adjustments, welding (manual / semi-automatic / automatic), physical inspection of all weld joints by qualified welding engineer/ inspector & carrying out repair of weld-joints found defective, Carrying out 100% radiographic inspection of all field weld joints for initial 1(one) Km in each Mainline Spread, Crossings and other specific locations as per Specifications and Special Conditions of Contract (SCC) and 20% radiographic inspection for the balance portion (excluding crossings and other specific locations) and destructive testing of one weld joint in each Spread as per specification and direction of Site Engineer, including providing Crawler type Automatic X-Ray machine and external X-Ray machine and all other requisite equipment, labour, supervision, materials, approved films, approved consumables, all facilities and personnel to process, develop, examine and interpret radiographs (by qualified and experienced Radiography Inspector) and other tests as required, carrying out repair of weld-joints found defective, carrying out re-radiography and other tests as required on repaired joints, etc.,

Carrying out coating of all field weld joints, by qualified coating insulators, including supply of approved joint coating materials, providing all equipment, materials and consumables necessary to carry out the job as per manufacturer’s recommendation, Installation of hot-pulled bends at required locations in mainline (bends to be fabricated from Owner-supplied bare pipes) including cutting, bevelling, fitment, coating the bare bend pipe with approved cold-applied tape coat / PU coating etc., Carrying out holiday detection, at specified voltage level corresponding to coating type and as per specifications, and repair of coating, if any, Laying pipeline by open-cut method at crossings viz., cart-track, metalled/ un-metalled roads, minor water courses (MWC), (except crossings identified as "Cased", "Submerged" & "HDD" crossings and "Marshy areas") and restoration of the site to original condition including performance of additional works for strengthening of banks of water courses etc., Lowering the pipeline in trench, tieing-in, backfilling with excavated earth and/or other suitable soil (top soil stored separately during trenching shall be backfilled on top of the ditch) as directed by Site-Engineer, Carrying out air cleaning, gauge pigging and hydrostatic testing (to specified pressure) of the complete pipeline (excluding those HDD crossing sections not under the scope of this tender) including providing ‘pre-testing’ of designated sections as approved by Engineer-in-Charge, providing all equipment, pumps, fittings, instruments, dead weight tester etc. and services, supervision, labour, consumables, testing of water, supply & injection of corrosion inhibitor, locating leaks, if any, and rectification of defects attributable to Contractor, re-testing after rectification etc. and cleaning the pipeline section after successful Hydrotesting, All tie-ins, including tieing-in with HDD sections under this tender, Final clean-up and restoration of ROW/ construction corridor, field bunds etc. and obtaining NOC from statutory authorities as required, disposal of debris and returning surplus material to designated disposal areas/ storage location, as directed by Engineer-in-Charge, restoration of land, facilities and boundary wall etc. for facilities dismantled/ damaged by Contractor during construction, obtaining work permits/ NOC from various authorities having jurisdiction before execution of work and complying with all stipulations/ conditions/ recommendation of the said authorities, obtaining NOC from respective land owners in respect of final restoration of their land etc., Preparation of as-built drawings, pipe book and other records as per specifications etc., Supply of all materials (other than those specifically undertaken to be supplied by the Owner under the contract) necessary for performance of work or for temporary or permanent incorporation in the works, and All other acts, deeds, matters and things necessary to make the pipeline ready for commissioning and completing the works in all respects as per drawings, specifications and instructions of Site Engineer/ Engineer-in-Charge.