Evaluation of Reservoir Characteristics Using Well Data of Sibayak Geothermal Field, North Sumatra, Indonesia.
|
Accession number;00A1057920
|
| Title;Evaluation of Reservoir Characteristics Using Well Data of Sibayak Geothermal Field, North Sumatra, Indonesia. |
| Author;
ATMOJO J P
(Kyushu Univ.)
ITOI R
(Kyushu Univ.)
FUKUDA M
(Kyushu Univ.)
SUDARMAN S
(Geothermal Exploration Technol., Pertamina, Ind)
|
Journal Title;Mem Fac Eng Kyushu Univ
|
Journal Code:F0191A
|
ISSN:1345-868X
|
|
VOL.60;NO.3;PAGE.129-142(2000)
|
| Figure&Table&Reference;FIG.14, TBL.1, REF.18 |
| Pub. Country;Japan |
| Language;English |
| Abstract;The Sibayak geothermal field is located in northern part of Sumatra Island, Indonesia. Exploration surveys were conducted during 1989-1997 when ten exploration wells were drilled. Repeated temperatures logging in the wells are analyzed for initial formation temperature using a Horner plot. Then estimated highest formation temperatures are plotted on the activity index curve for quantitative evaluation of the thermal potential of wells. Initial reservoir pressures are also determined from a pivot point of pressure profiles. The results show the maximum formation temperature in the Sibayak reservoir reaches up to 310.DEG.C.. A few wells located in the central part in Sibayak are evaluated to be of Type A of activity index (AI) suggesting high thermal potential. On the other hand, wells at southern part belong to Types C and D of AI. These low grades of thermal potential may be caused by low temperature water inflow along the caldera rim. (author abst.) |
|
|
|
Related Articles;
|
|
