Evaluates the concept of using a spike hydrostatic test as applied to the hydrostatic retesting of existing oil and gas pipelines. A spike hydrotest being defied where the test pressure to operating pressure ratio significantly exceeds the minimum…
Describes the pollution aspects of hydrostatic test water. The water used for this testing is obtained from the most convenient local raw surface source. The report describes the results of a three-phase investigation: (l) the study of existing and…
Provides industry-based BASM guidance to BSEE pertaining to certain alternate procedures and equipment (alternate compliance) requests from the regulations in 30 CFR 250 Subpart J, specifically paragraphs 250.1002 and 250.1003. These guidelines…
This report presents an assessment of the effectiveness of a hydrotest in exposing defects in new and existing onshore and offshore pipelines. The study includes an assessment of the type and size of flaws that testing can and cannot identify through…
The objective of this project was to evaluate the effectiveness of the dewatering process after hydrotesting and to examine the internal corrosion threat posed by residual water trapped in crevices and water pushed into a dead leg. A “time to dry”…
This study evaluates methods for pressure testing large diameter pipelines in arctic
and sub-arctic regions and recommends the most technically feasible method.
Review of existing and proposed technologies for locating leaks during hydrostatic testing of buried gas transmission pipelines was performed. Articles, reports, and patents having information on leak location were catalogued. Potential technologies…
This work develops a comprehensive guidance for the pipeline industry on the use of hydrostatic testing as an integrity management tool with carbon steel mainline piping as the focus of this work. Selected hydrostatic testing principles considered…
One of the goals of the NDE-4A project was to determine the equivalency of ILI and Pressure Testing. This report looks at the overview of each of the two integrity inspection techniques work, and the potential problems and advantages of each.