Nugroho, Susanto Budi and Ardianto, Reza Nur and Kristanto, Dedy (2010) Integrating Production Analysis as a Plan of Pattern Selection for Chemical Flood Pilot Project in Limau Block, Pertamina EP. In: SPE North Africa Technical Conference and Exhibition held in Cairo, Egypt, 2010, Cairo, Egypt.
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Abstract
Limau Block, operated by Pertamina EP lies in South Sumatera basin, located 90 km Western part of Prabumulih. Consisted of
eight fields, the first well was drilled in April 1951. The production reached a peak of 49,000 BOPD. The reservoir was divided
into 22 layers mainly due to faulting. The pilot water flood operation was initiated in April 1991 by injecting water. Currently,
Limau block is a mature oil field. By April 2009 production had declined to 10,000 BOPD. It is estimated that more than 80%
primary reserves have already been produced and recovery factor has reached 36 %. Most of the reservoirs have been intensively
produced over the life of the field and only a few of them are still producing today at low rate due to depletion.
EOR department tried to identify reservoir with remaining production potential that are candidates for Pilot Chemical Flooding
Project, which will be the first Chemical Flood Project for Pertamina EP. The chemical selection is ongoing progress. It has
become much more of a challenge for the team consisting of integrated Geophysics, Geology, Reservoir, Production, Process
Facility, Project Management and Economic Evaluation.
This paper presents the result of Production Part as integrated analysis for Chemical Flooding. The analysis, which was
performed by integrated analysis of production and injection, tracer test, well history and surface data, has identified inter well
communication between injection well and production well. It shows that the most prospective candidate for Chemical Flood pilot
project was S layer in Q-51 field, the pilot project was planned for inverted five (5) spot patterns and predicted breakthrough time
was 90 days, it was also predicted a tertiary peak of 3,100 BOPD. Currently, Q-51 field, which had reached a primary peak of
20,600 BOPD and secondary peak of 2,000 BOPD, is injecting 36,820 BWPD through seven (7) peripheral injection wells and
producing 31,031 BFPD through 13 production wells. This analysis is useful result as a part of countercheck for Geology and
Reservoir Modeling regarding to the plan of Chemical Flooding Pilot Project.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Subjek: | Q Science > Q Science (General) |
| Divisions: | x. Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Dr.Ir, MT Dedy Kristanto |
| Date Deposited: | 06 Feb 2020 07:23 |
| Last Modified: | 06 Feb 2020 07:23 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/22424 |
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