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All Journal Berita Sedimentologi
John Jong
JX Nippon and Gas Exploration (Malaysia) Limited, Malaysia
Earth & Planetary Sciences

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Destructive Diagenesis Observed in Outcrop Examples of Neogene Sandstone Reservoir and Clay Contact Zones, Miri, Northern Sarawak Franz L. Kessler; John Jong
Berita Sedimentologi Vol 43, No 1 (2019)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2290.741 KB) | DOI: 10.51835/bsed.2019.43.1.69

Abstract

The occurrence of diagenetic siderite and iron oxide deposits has been recognized in offshore subsurface reservoirs of Baram Delta fields. Iron-rich intra-reservoir deposits are relatively common in coastal Sarawak, but good examples are rare. In this article, we present outcrop examples of the Miri area. In three selected locations, geometries and composition of diagenetically-derived iron precipitates can be explored, measured and analyzed. The destructive impact of siderite rims on net reservoir volume for STOIIP calculation, and their potential interaction with chemicals used for enhanced oil recovery (EOR) is also noted.
Co-Authors Franz L. Kessler