Poly
Lam
Products, Corp. The Atmosphere Control Packaging Specialists
PROTECTIVE FIELD STORAGE OF DRILLING EQUIPMENT
& PIPELINES
All material contained in this manual is
copyrighted and supplied by Cortec Corporation. This manual is meant to provide users with
guidelines on products and procedures for stacking, mothballing and laying-up drilling
equipment. All information contained within has been reproduced with Cortec Corporation's
premission. Please contact your representative at Century Corrosion Technologies, Inc. for
specific product and procedural recommendations.rust
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1.
SCOPE.
1.1
This standard outlines the procedures for protecting oil field and
pipeline equipment and systems. Only the most cost effective methods are referenced,
although in some instances deviations are acceptable due to practical limitations.
1.2r
In mothballing a complex system like a drilling rig and platform, some
logical order must be established for accomplishing these tasks. Certain equipment will be
required to accomplish these procedures and must be left operating until near completion.
Many task can be done concurrently.
1.3
The specific kind of equipment, the type of installation or climate
conditions of the area may require more thorough consideration. These procedures and
recommendations serve as a guide only. For capital intensive equipment, consult
manufacturer for additional precautions.
1.4
Other chapters contain information which may be pertinent. These chapters
have not been included on-line, yet you can e-mail or call
for more information regarding these chapters.
2.
GENERAL.
2.1
Lubricating Films. In many instances lubricating oil and grease
films will rupture as a result of prolonged exposure to elements or due to emulsification.
A vented case will allow repeated condensation cycles and water will accumulate at the
bottom of the sumps. Pitting of anti-friction and journal bearings may occur.
2.2
Touch-up. Do a thorough touch-up coating before storing. First,
wire brush loose paint and rust, then clean surface with a suitable solvent or cleaner.
Apply Class IV VCI Dry Coating to a film thickness of sharp corners and edges, (e.g. top
scabs, laps trim, ragged torch cuts or broken tack welds), scrape or wire brush away weld
slag and spatter, mill scale or rust. As above, make sure that the surface is clean and
dry. Touch-up protection can be done conveniently with a brush or spray gun.
2.3
Shroud with Class VII 6 mil (150 microns) VCI Plastic Wrap over the
control cabinets and similar structures.
VCI-126 6 mil (150 microns)
If necessary, cut openings around handles or similar protrusions which are
difficult to seal. Before shrouding, work Class V VCI Fluid into the pivots and rollers to
prevent corrosion in crevices and similar areas.
VCI-326 or VCI-329
Protect the pivot points of the heavy mechanical control linkages located
below the floor by working Class III VCI Grease into the fits.
Covering with Tarpaulin. If a tarpaulin is used to cover the
equipment it should not be less than 6 mils (150 microns) in thickness. High wind
locations will require a much greater mil thickness. Black normally endures prolonged
sunlight exposures better than clear inhibitors. Before applying the tarpaulin, all
points, ridges or other abrupt contour changes with which the covering will touch should
be rounded and padded with cardboard that is tied and taped in place. Large openings, such
as those above the cable and sand line drums and at guard junctures, should be boarded up
sufficiently to give support to the tarpaulin. The wood should be wired or otherwise held
securely in place so that it will not move from position when it shrinks with drying. It
is desirable to hold the tarpaulin with wood framing. A strip of wood may be placed over
the tarpaulin and nails driven into the framing, or the tarpaulin may be reinforced with
waterproof tape and roofing nails or staples driven into the wood. The tarpaulin should be
carefully draped so that there will be no folds or depressions which will catch water,
especially if freezing may occur, as such points of weight would destroy a tarpaulin in
the wind. Light rope or cord should be used to keep the tarpaulin draped as desired,
provide support and prevent billowing and fluttering.
POLY LAM
PRODUCTS CORP.
P.O. BOX 1734
WILLIAMSVILLE, NEW YORK 14231
PHONE: 800-836-9648
USA and Canada (All Others):
716-633-1997
FAX:716-633-2007
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