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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.1
- 수록면
- 327 - 336 (10page)
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초록· 키워드
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The tight sandstone reservoir of the Donghetang Formation underwent complex diagenetic processes for which the controlling factors remain unknown. Here, we present a case study of the lower member of this formation and show that this part of the reservoir consists mostly of lithic quartz sandstone with poor physical characteristics. Using core observation, thin section identification, electronic microprobe, scanning electronic microscopy, X-ray diffraction, and inclusion fluorescence microscopy, we identified five major diagenetic processes: compaction, cementation, dissolution, metasomatism, and hydrocarbon charging. Compaction and cementation have negative effects on petrophysical properties (referred to porosity and permeability of sandstone in this paper), and dissolution improves these properties. Diagenesis is affected by the depositional environment, and clastic constituents control compaction and dissolution; burial history and the geotemperature field control diagenesis at the macroscopic scale, while hydrocarbon charging affects the degree of cementation and dissolution. As oil saturation increases, the percentage of calcareous cements decreases and the development of secondary dissolved pores improves.
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참고문헌 (28)
참고문헌 신청
Ajdukiewicz, J.M. / 2010 / Sandstone reservoir quality prediction: the state of the art / American Association of Petroleum Geologists Bulletin 94:1083~1091
Ajdukiewicz, J.M. / 2010 / Prediction of deep-reservoir quality using early diagenetic process models in the Jurassic Norphlet Formation, Gulf of Mexico / American Association of Petroleum Geologists Bulletin 94:1189~1227
Amthor, J.E. / 1998 / Influence of early diagenesis on reservoir quality of Rotliegende sandstones, Northern Netherlands / American Association of Petroleum Geologists Bulletin 82:2246~2265
Bjorlykke, K. / 2014 / Relationships between depositional environments, burial history and rock properties. Some principal aspects of diagenetic process in sedimentary basins / Sedimentary Geology 301:1~14
Chen, D.Y. / 2015 / Diagenesis and favorable diagenetic facies of the eighth member of Yanchang Formation in Maling area, the Ordos Basin / Petroleum Geology & Experiment 37:721~728
Ajdukiewicz, J.M. / 2010 / Prediction of deep-reservoir quality using early diagenetic process models in the Jurassic Norphlet Formation, Gulf of Mexico / American Association of Petroleum Geologists Bulletin 94:1189~1227
Amthor, J.E. / 1998 / Influence of early diagenesis on reservoir quality of Rotliegende sandstones, Northern Netherlands / American Association of Petroleum Geologists Bulletin 82:2246~2265
Bjorlykke, K. / 2014 / Relationships between depositional environments, burial history and rock properties. Some principal aspects of diagenetic process in sedimentary basins / Sedimentary Geology 301:1~14
Chen, D.Y. / 2015 / Diagenesis and favorable diagenetic facies of the eighth member of Yanchang Formation in Maling area, the Ordos Basin / Petroleum Geology & Experiment 37:721~728
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