On-Stream Pipe Scale Inspection Using Gamma-Ray Tomography Technique: Field Experiment in Karaha Geothermal Power Plant, Indonesia

Pipe scaling is a common problem in geothermal power plants. Currently, the pipeline withinside the Karaha Telaga Bodas geothermal subject is indicated to incorporate scale because of pressure anomalies. On-stream pipe scale inspection techniques are needed to maintain the production process. This r...

Full description

Saved in:
Bibliographic Details
Published inIOP conference series. Earth and environmental science Vol. 1344; no. 1; pp. 12018 - 12026
Main Authors Azmi, Bayu, Milyardi, Indra, Stefanus, Megy, Prasetyo, Fajar Adi, Prasetio, Rasi, Kuznetsov, Mikhail S., Dolmatov, Oleg Yu
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.05.2024
Subjects
Brines
Cesium 137
Cesium isotopes
Cesium radioisotopes
Data acquisition
Gamma rays
Geothermal power
Geothermal power plants
Inspection
Pipes
Power plants
Radiation sources
Scanning
Thickness
Tomography
γ Radiation
Indonesia
Online AccessGet full text

Cover

More Information
Summary:Pipe scaling is a common problem in geothermal power plants. Currently, the pipeline withinside the Karaha Telaga Bodas geothermal subject is indicated to incorporate scale because of pressure anomalies. On-stream pipe scale inspection techniques are needed to maintain the production process. This research aims to apply the gamma-ray transmission tomography technique to pipelines in geothermal fields. The gamma-ray tomography system consists of a 137 Cs (2.96 GBq) gamma radiation source, a scintillation detector, mechanical parts, control parts, and data acquisition. Scanning was performed at three predetermined points: brine pipe 1, two-phase pipe, and brine pipe 2. The system scans half of the pipe circumference (180°) and divides it into 32 projections (5.625°). Each projection performs a translational scan with a resolution of 4 mm. Three cross-sectional images of the pipe were obtained, showing the inside condition. Pipe scale was observed at three scanning points with a thickness of 12 mm-48 mm. Gamma tomography can potentially be a tool for examining pipe scale thickness in geothermal fields. The use of a single detector is a limitation that needs to be improved. Apart from that, the stability of the control and mechanical parts must also be improved.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/1344/1/012018