Comparison of Wellhead Completion Designs for Geothermal Operations in Indonesia: Expansion Spool and Casing Head Completions
- Key words
- Geothermal Wellhead, Wellhead Completions, Casing Head Flange, Expansion Spool, Geothermal, Drilling, Indonesia
- Conference
- New Zealand Geothermal Workshop
- Year
- 2020
- Session
- Session 8.2
- Language
- English
- Paper number
- 57
Full text
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Abstract
Geothermal wellheads shall be designed to operate during the life of the well. In a hot, acidic, and corrosive geothermal operating conditions, the selection of wellhead completion is critical. The purpose of this study is to compare the conformity of two wellhead completion designs for application in Indonesia: expansion spool completion and casing head completion. Using cross-sectional analysis, this study assessed wellhead designs currently available in the market and comparing the results against technical judgements. This study also discusses the advantages and disadvantages of both designs, and the rationale behind the current design preferences in the geothermal industry in Indonesia.
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