MAKALAH ILMIAH - Pusat Sumber Daya Geologi

More documents

Recommendations

Info

MAKALAH ILMIAHTable 3 – Summary of plug outcrop analysis, visual porosity observation andporosity –permeabilty cross plot in each microfacies cluster .89Buletin Sumber Daya Geologi Volume 7 Nomor 2 - 2012
MAKALAH ILMIAH ILMIAHThe porosity was reduced by thecementation. Based on that data theBryozoan – Coraline Packestone –Grainstone microfacies generally has fairquality as a reservoir candidate.CONCLUSION1. The Tabalar Formation based on fieldobservation can be determined into onelithofacies, which is wackestone –packestone. The Tendehantu Formation hastwo lithofacieses based on field observation.They are wackestone – packestone andpackstone – grainstone lithofacieses.2. Petrographical analysis divided the 3lithofacieses into 3 lithofacies clusters.Thoseare; Indeterminated Bioclast – Bryozoan –Larger Forams Packestone – GrainstoneMicrofacies, Larger Forams – CoralineWackestone and Bryozoan – CoralinePackestone – Grainstone.3. The complex diagenetic processes thathappened in the two formations weremicrobial micritization, dissolution,cementation, and compaction, whichhappened in four stage.4. The potential reservoir candidate isIndeterminated Bioclast – Bryozoan – LargerForams Packestone – GrainstoneMicrofacies from Tendehantu Formation andLarger Forams – Coraline Wackestone fromTabalar Formation with good qualityprediction.ACKNOWLEDGEMENTSWe would like to thank SalamanderEnergy Ltd. for supporting and funding thisresearch and GDA Consulting for the supportduring field work. Dr Ildrem Syafri,Mr.Ismawan, & Mr Djadjang J. Setiadi arethanked for supervising this paper.Figure 12 - RA 14-4 Thin section photograph and the diagenetic stage illustration.(1) Microbial Micritization in red algae fragment possibly happened in marinephreatic. (2) Fracturing in algae fragment, possibly caused by burial regime.(3) Blocky and bladed cementation were developed in fracture possibly inmeteoric phreatic regime, this phase reduce the fracture pores. (3) The latestdiagenesis stages that recorded here is dissolution in cement that formed before,this phase possibly in meteoric vadose.Buletin Sumber Daya Geologi Volume 7 Nomor 2 - 201290
Page 2 and 3: MAKALAH ILMIAHKerusakan pada pori-p
Page 4 and 5: MAKALAH ILMIAHFigure 3 - Tectonic s
Page 6 and 7: MAKALAH ILMIAHand the Bryozoan - Co
Page 8 and 9: MAKALAH ILMIAHFigure 6 - Carbonates
Page 10 and 11: MAKALAH ILMIAHFigure 10 - Three thi
Page 14: MAKALAH ILMIAHREFERENCESDjamal, B.,

MAKALAH ILMIAH - Pusat Sumber Daya Geologi

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?