Reservoir management at Awibengkok geothermal field, West Java, Indonesia
- 作者：Jorge A. Acuñ ; a ; James Stimac ; Lutfhie Sirad-Azwar ; Riza Glorius Pasikki
- 关键词：Salak ; Awibengkok ; Indonesia ; Reservoir management ; Injection management ; Tracer testing ; Chloride monitoring ; Well targeting and design ; Drilling practices
- 刊名：Geothermics
- 出版年：2008
- 期刊代码：23_03756505
- 类别：pw
- 出版时间：June 2008
- 卷：37
- 期：3
- 页码：332-346
- 文件大小：1207 K
摘要
The Awibengkok geothermal field, also known as Salak, is the largest developed geothermal resource in Indonesia, currently sustaining 377 MW of electrical generation. It is a water-dominated, naturally fractured reservoir with benign fluid chemistry. A very large amount of produced brine is injected along the margins of the proven reservoir. After 13 years of continuous operation, production levels have been maintained at or above nominal turbine capacity through periodic make-up drilling and field management. The two main challenges have been taking advantage of the changing reservoir thermodynamic conditions and managing injection. Some innovations in well design and drilling procedures include sizing up the production casing from VCN-4S69H3H-1&_mathId=mml1&_user=1067359&_cdi=5959&_rdoc=6&_acct=C000050221&_version=1&_userid=10&md5=654282ef652988e05a4bfac2a6834ae1">
tie-backs, and drilling shallow, relatively high-angle (55–60° inclination) wells to maximize production from the steam cap. Well deliverability predictions have been improved by combining well production history and downhole measurements to construct wellbore hydraulic models.