(http://www.clarion.org/ERRP/ERRP-2011/index.php)

Evaluation, Repair and Rehabilitation of Pipelines Conference and Exhibition

October 31-November 3, 2011 Houston Marriott West Loop, Houston, Texas, USA

Papers are now invited for this international forum which will address key issues in oil and gas pipeline-rehabilitation. The conference program will be divided into the following broad areas of interest: · Inspection – internal and external · Integrity assessment · Repair and rehabilitation practices and technologies · Internal issues – including black powder, microbial corrosion · External issues – including coatings, DCVG, direct assessment. The attached PDF file contains additional information on the submission of abstracts and the conference.

The link takes you to the conference agenda along with author abstract/paper requirements.

Reviewed: 2011-05-17 by Lydia Frenzel

The Advisory Council compiled a Special Report of errors, accidents, incorrect assembly practices and faulty work habits in 2002. Luis Ortega Trotter, who is now deceased, from AcquaBlast in Brazil provided the photos to the Advisory Council WaterJet Workshop on Surface Preparation held at the 2001 WJTA Conference. Ortega was concerned about the difference in the training and education of the work force in Central and South America and developing countries, compared to those of North America-Canada-USA-Europe.

These mistakes seem like “It couldn’t happen on my site.” They are mistakes that might not be observed in a quick inspection. Yet Lydia Frenzel gets calls about cut or frayed hoses, kinked lines, and pressure relief valves that are installed incorrectly. Don’t let this happen on your site. Contact the Advisory Council for a copy.

Luis Ortega received the WJTA Best paper award in 2001 for his Comparison of Abrasive Blasting, Wet Abrasive Blasting, Waterjetting-Hydro Blasting, Needle Gun cleaning, and Grinding on a Pulp Mill in Brasil (Brazil). The paper compares salt residuals and costs. Contact the Advisory Council for a copy and his presentation. Frenzel lost contact with AcquaBlast after Luis Ortega died and Juan C. Ortega became the owner. Web site is www.acquablast.com.br; email: acquablast@acquablast.com.br

The errors include:

1 Incorrect installation of water filter in the wrong direction resulting in deformation of the pressure filter

2 Blown-out hose out due to incorrect installation of particulate water filter.

3 Pressure relief seal installed incorrectly

4 Over tightening of fittings.

5 Caustic in by-pass valve resulting in failure

6 Missing pipe connection that results in blow-out of concrete

7 By-pass assembly damaged from being dropped or falling

8 Cutting of hoses on sharp edges

9 No hose covering or sheathing or protector

10 Destruction of triggers of jetter pistol/gun from caustic so that dual trigger protection was not operational

11 Incorrect scaffolding

12 Employee without gloves, security-safety-tie-off belt; single trigger instead of dual trigger, gun

13 Employee placing a hand in the water bypass (water dump hose)

14 PVC gloves instead of steel mesh or waterjet safety gloves

15 No eye protection or gloves

16 No whip lock or whip check

17 Terminal end of high pressure connection has damaged thread, no lubrication

The Water Jetting workshop was held again this year. The attendance was disappointing, but in part this was due to the way in which the workshop was advertised. We promise to do better in getting the word out next time. The papers given in the sessions were considered quite useful, and some lively discussions ensued over some long standing disagreements on what surfaces should look like and how they should be cleaned. We’ve been hearing the same arguments for twenty-five years. Some one should invent a new line of thinking.

I hope to have a more complete run down on the meeting later in the month.

Checkpoints and final inspections shall be signed off by certified coating inspectors.

The implementing contractor shall maintain a certification program for blasters and painters working on the project.

The inspection shall be made jointly with the SUPERVISOR and the ship’s Commanding Officer’s representative, and shall take place prior to the commencement of any work by the contractor.

Heavily rusted or corroded area, damaged metal and holes in the structure or piping shall be documented and provided to ship’s force and Responsible Contracting Authority to determine if further structural evaluation or NDT is warranted and for possible repair before surface preparation.

5.3 DEGREASE / FRESH WATER WASH DOWN: Prior to surface preparation, remove all surface contaminants such as sea salts, grease and oil (hydrocarbons), loose rust; mud and marine growth with 3,000-PSI minimum fresh water wash down.

7.7 PAINT APPLICATION: The use of brush, rollers, single or plural component spray equipment is acceptable for application of the paint coat specified below.

17.1.5 In order to pass the checkpoint, any Appendices required by the certified coating inspector shall be up to date or completed and submitted to QA.

MAINTAIN SEPARATE LOG FOR EACH AREA / LOCATION, PREPARED OR PAINTED SURFACE, WHEN AN AREA IS DIVIDED INTO SEPARATE SECTIONS MAINTAIN A SEPARATE LOG FOR EACH SECTION, FOR NUMBER OF MEASUREMENTS TO BE TAKEN SEE NOTES BELOW.

The five spot measurements shall be made for each 10 m2 (100 ft2) of area as follows: a.

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Checkpoints and final inspections shall be signed off by certified coating inspectors.

The implementing contractor shall maintain a certification program for blasters and painters working on the project.

The inspection shall be made jointly with the SUPERVISOR and the ship’s Commanding Officer’s representative, and shall take place prior to the commencement of any work by the contractor.

Heavily rusted or corroded area, damaged metal and holes in the structure or piping shall be documented and provided to ship’s force and Responsible Contracting Authority to determine if further structural evaluation or NDT is warranted and for possible repair before surface preparation.

5.3 DEGREASE / FRESH WATER WASH DOWN: Prior to surface preparation, remove all surface contaminants such as sea salts, grease and oil (hydrocarbons), loose rust; mud and marine growth with 3,000-PSI minimum fresh water wash down.

7.7 PAINT APPLICATION: The use of brush, rollers, single or plural component spray equipment is acceptable for application of the paint coat specified below.

16.1.5 In order to pass the checkpoint, any Appendices required by the certified coating inspector shall be up to date or completed and submitted to QA.

MAINTAIN SEPARATE LOG FOR EACH AREA / LOCATION, PREPARED OR PAINTED SURFACE, WHEN AN AREA IS DIVIDED INTO SEPARATE SECTIONS MAINTAIN A SEPARATE LOG FOR EACH SECTION, FOR NUMBER OF MEASUREMENTS TO BE TAKEN SEE NOTES BELOW.

The five spot measurements shall be made for each 10 m2 (100 ft2) of area as follows: a.

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MSDS and manufacturer’s ASTM F 718 sheets, Shipbuilders and Marine Paints and Coating Product / Procedure Data Sheet for Coating System Being Applied.

NOTE: As stated in section 4.8.2 of the CORE PPI the application of Euronavy ES 301 is exempt from relative humidity and dew point requirements since it may be applied on damp surfaces.

6.1 PERFORM SURFACE PREPARATION USING METHOD 2 OF CORE PPI, UHP WATER JETTING.

6.2 (Surface Profile Measurements): Accomplish IAW Ref.

Enter on Appendix 3 TESTEX PRESS-O-FILM tapes used to measure surface profile.

NOTE: Section 6.5.2 of the CORE PPI states that for areas prepared to SSPC-SP-12, UHP water jetted surfaces will retain the surface profile prior to surface treatment.

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1.2 If the PPI checkpoint criteria are met, the following table provides service life expectancy for the listed systems.

MSDS and manufacturer’s ASTM F 718 sheets, Shipbuilders and Marine Paints and Coating Product / Procedure Data Sheet for coating systems being applied for specified area.

4.14.1 Prior to use, painting equipment (pumps, hoses, and so forth) shall be flushed clean to remove any residual contaminants or other foreign matter.

Situations arise where very limited touch-up is required, and specified drying times have an adverse impact on ship’s schedule.

7.3.1.1 Two days wait between coats and two days wait after the final coat if the largest single touch-up area is less than 1 ft² and the total touch-up area is less than 4 ft².

NOTE: BETWEEN APPLICATION OF PAINT COATS, ENSURE A MINIMUM OF 48 HOURS OF DRYING TIME IS GIVEN AT A MINIMUM TEMPERATURE OF 70°F.

During application, immediately brush out any runs, drips, sags or puddles.

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The coating described herein is NOT to be installed in smaller tanks, and should not be put in potable water tanks with ships that have flash type evaporators.

4.14.1 Prior to use, painting equipment (pumps, hoses, and so forth) shall be flushed clean to remove any residual contaminants or other foreign matter.

4.14.2 Cleaner used shall be as recommended in the paint manufacturer’s ASTM F 718 sheets, Ref.

MAINTAIN AMBIENT AND SUBSTRATE TEMPERATURE OF AT LEAST 50º F OR HIGHER THROUGHOUT CURING.

7.2 DRY FILM THICKNESS MEASUREMENTS: Accomplish IAW Ref 2.b, record measurements in Appendix 4.

Curing time may be accelerated only by increasing the substrate temperature IAW “Curing Table” of Ref.

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4.2 WORK NOTICE: The contractor shall post the notice at the ship’s quarterdeck or other designated location for each job or separate area at least four hours, but not more than 24 hours, prior to the start of work.

Checkpoints and final inspections shall be signed off by certified coating inspectors.

4.3.4 COATING INSPECTOR RESPONSIBILITIES: Coating inspectors are responsible for requirements listed in NSTM 631, Section 11.7.

4.13.2 Notify the Commanding Officer’s representative immediately when the contractor’s work is complete and the system, piping, or circuit is ready for activation to accomplish removal of tags.

Heavily rusted or corroded area, damaged metal and holes in the structure or piping shall be documented and provided to ship’s force and Responsible Contracting Authority to determine if further structural evaluation or NDT is warranted and for possible repair before surface preparation.

5.4.3 (Contamination Containment and Masking): Verify all surfaces within the scope of the project are IAW paragraphs 4.10 through 4.11.

6.3.2 Feather edges of adherent paint in adjacent areas remaining after cleaning.

9.3.3 All tests and inspections noting unsatisfactory conditions shall result in the termination and rescheduling of the checkpoint.

11.1.2 Coating imperfections found, which may cause premature coating failure, shall be corrected before the paint system is accepted using appropriate touch-up procedures specified in paragraph 7.12.

11.1.3 In order to pass the checkpoint, any Appendices required by the certified coating inspector shall be up to date or completed and submitted to QA.

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NOTE: IMPLEMENTING AUTHORITY WILL DESIGNATE SURFACE PREPARATION METHOD TO USE, METHOD 1 UHP WATER JETTING, OR METHOD 2 POWER TOOL CLEANING.

NOTE: The Responsible Implementing Authority shall have the authority to reject power tool cleaning in any inaccessible area if the surface can be shown to have adequate accessibility for UHP Water Jetting.

NOTE: Flash rusting shall not exceed a degree equal to SSPC-VIS 4 (Visual Reference for Steel Cleaned by Water Jetting) Standard WJ-2L.

If flash rusting occurs, the extent of the flash rust will determine the correct method of managing the flash rust.

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