Demonstration of realtime radiography on pipeline girth welds: Final report

Technical Report · Thu Sep 01 04:00:00 EDT 1988

OSTI ID:6349355

Light, G M

Conventional radiography has been the accepted nondestructive testing (NDT) method used for many years to either ''accent'' or ''reject'' a field weld in the pipeline industry. However, conventional radiography requires the expense of film, developing chemicals, and manpower for film development. It also normally has a delay of 2 hours or more between when the weld was radiographed and when the radiographic film of the weld is available for interpretation. Over the last few years, a newer approach to performing radiographic testing, called ''realtime'' radiography, has been used in several different types of field inspection operations. The realtime radiography system forms the image with optical imaging in lieu of photographic film. Objectives of this project were: (Task 1) Integration of realtime x-ray system components into a realtime-radiographic imaging (RTRI) system for pipeline girth weld inspection. The components to be integrated into the RTRI were identified in the final report for PRC PR-15-625. (Task 2) Shakedown Test demonstration of the integrated RTRI on a section of pipeline in a pipe yard. (Task 3) Field Demonstration of the RTRI on 100 welds in the field. (Task 4) Final Report. Task 1 was completed. Work on Task 2 was performed. Work on Task 3 will not be conducted, since the RTRI did not pass the shakedown test. 7 figs.

• Research Organization: Southwest Research Inst., San Antonio, TX (USA). Nondestructive Evaluation Science and Technology Div.
• OSTI ID: 6349355
• Report Number(s): SWRI-9010919
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
032000* -- Natural Gas-- Transport
Handling
& Storage
42 ENGINEERING
420205 -- Engineering-- Transport & Storage Facilities-- (1980-)
420500 -- Engineering-- Materials Testing
440300 -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
DOCUMENT TYPES
EQUIPMENT
INDUSTRIAL RADIOGRAPHY
JOINTS
PIPELINES
PROGRESS REPORT
REAL TIME SYSTEMS
WELDED JOINTS
X-RAY RADIOGRAPHY