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Title: Pipeline Integrity Monitoring And Rehabilitation A 40 Year Study On The Cost Of Quality
Author: William A. Thomas
Source: American Gas Association 1993
Year Published: 1993
Abstract: The purpose of this paper is to benchmark various internal and external pipeline integrity maintenance and rehabilitation programs that can be used in the natural gas industry. Seven different strategies are compared in each example of the appendix in terms of the two following criteria over a 40 year time frame: 1) financial cost, and 2) relative risk. The model used for this purpose (see Appendix) involves a 3D Lotus Spreadsheet divided into 12 successive worksheets. The first worksheet, comprised of the first two pages of each example in the appendix, summarizes all the financial information contained in the 11 ensuing support worksheets and presents it in a case study format. These cases depict different strategies a pipeline company may choose to verify pipeline integrity each case represents a different strategy. Methods of rehabilitation and corrosion control are listed on the left hand column, and their associated costs over a 40 year time frame (as experienced and researched by Tenneco Gas) are listed on the right. The Risk Assessment section depicts a subjective, qualitative assessment of the amount of risk associated with each case. This paper will display the costs incurred by Tenneco Gas for all categories of rehabilitation and corrosion control included in each case. Cost figures have been researched for those categories included in the model but not utilized by Tenneco Gas in its integrity monitoring and rehabilitation efforts.

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