FACTORS CONTROLLING DISTRIBUTION OF DIFFERENT TEXTURES OF ANHYDRITE CEMENT AND ITS RELATION TO RESERVOIR QUALITY IN THE UPPER DALAN AND KANGAN CARBONATE RESERVOIRS, SOUTH PARSFIELD

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KADKHODAEI ILKHCHI R.; RAHIMPOUR BONAB HOSSEIN; MOUSSAVI HARAMI R.; KADKHODAEI ILKHCHI A.

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Paper Information

Journal: JOURNAL OF STRATIGRAPHY AND SEDIMENTOLOGY RESEARCHES Year:2011 | Volume:27 | Issue:1 (42) Page(s): 1-26

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Title

FACTORS CONTROLLING DISTRIBUTION OF DIFFERENT TEXTURES OF ANHYDRITE CEMENT AND ITS RELATION TO RESERVOIR QUALITY IN THE UPPER DALAN AND KANGAN CARBONATE RESERVOIRS, SOUTH PARSFIELD

Author(s)

KADKHODAEI ILKHCHI R. | RAHIMPOUR BONAB HOSSEIN | MOUSSAVI HARAMI R. | KADKHODAEI ILKHCHI A. | Issue Writer Certificate

Keywords

UPPER DALAN AND KANGAN FORMATIONSQ2

DIFFERENT ANHYDRITE TEXTURESQ2

SULFATE-RICH BRINESQ2

RESERVOIR QUALITYQ2

DIAGENESISQ2

DISSOLUTIONQ2

FRACTUREQ2

Abstract

Reservoir quality of Upper Dalan and Kangan carbonate reservoirs in the South Pars field has been affected by various diagenetic processes. The formation of anhydrite cement is one of the most important of these processes, developed in layered, poikilotopic, pore-filling and pervasive, nodular and sparse crystals, FRACTURE filling and veinlet forms. These textures during different diagenetic stages, by replacement, displacement and pore occluding and in different degrees, have been affected various facies in the reservoir. The results of this study indicate anhydrite cement has mostly affected the dolomite facis than the lime facies. In addition, this also shows the effect of sulfate- rich brines in dolomitization. In the view of RESERVOIR QUALITY, Pore-filling and pervasive anhydrite texture is more effective than the others. As, occluding of whole pore spaces in dolograinstone and grain-dominated dolopackstone facies by this anhydrite and during shallow burial DIAGENESIS, has resulted in extreme damaging of the RESERVOIR QUALITY. In contrast, the RESERVOIR QUALITY of these facies has been improved due to DISSOLUTION of this cement and creation of the secondary vuggy pore spaces in subsequent diagenetic stages. It can be concluded that the development and effect of the anhydrite in different textures in the reservoir, controlled by three main factors including the presence of SULFATE-RICH BRINES, initial sedimentary texture and the effect of the later diagnetic processes (i.e.dissolution and FRACTURE).

Cites

EVAPORITE (ANHYDRITE AND CELESTITE) MINERALIZATION AND ITS EFFECT ON RESERVOIR QUALITY OF THE DOLOSTONE INTERVALS OF THE ASMARI FORMATION, NORTHERN PART OF DEZFUL EMBAYMENT, SOUTHWEST OF IRAN

References

MICROBIAL FACIES (THROMBOLITE AND STROMATOLITE) IN THE LOWER PART OF KANGAN FORMATION IN ZAGROS AREA WITH SPECIAL INTEREST ON THE PERMO/ TRIASSIC TRANSITION

Cite

APA: Copy

KADKHODAEI ILKHCHI, R., RAHIMPOUR BONAB, HOSSEIN, MOUSSAVI HARAMI, R., & KADKHODAEI ILKHCHI, A.. (2011). FACTORS CONTROLLING DISTRIBUTION OF DIFFERENT TEXTURES OF ANHYDRITE CEMENT AND ITS RELATION TO RESERVOIR QUALITY IN THE UPPER DALAN AND KANGAN CARBONATE RESERVOIRS, SOUTH PARSFIELD. JOURNAL OF STRATIGRAPHY AND SEDIMENTOLOGY RESEARCHES, 27(1 (42)), 1-26. SID. https://sid.ir/paper/157115/en

Vancouver: Copy

KADKHODAEI ILKHCHI R., RAHIMPOUR BONAB HOSSEIN, MOUSSAVI HARAMI R., KADKHODAEI ILKHCHI A.. FACTORS CONTROLLING DISTRIBUTION OF DIFFERENT TEXTURES OF ANHYDRITE CEMENT AND ITS RELATION TO RESERVOIR QUALITY IN THE UPPER DALAN AND KANGAN CARBONATE RESERVOIRS, SOUTH PARSFIELD. JOURNAL OF STRATIGRAPHY AND SEDIMENTOLOGY RESEARCHES[Internet]. 2011;27(1 (42)):1-26. Available from: https://sid.ir/paper/157115/en

IEEE: Copy

R. KADKHODAEI ILKHCHI, HOSSEIN RAHIMPOUR BONAB, R. MOUSSAVI HARAMI, and A. KADKHODAEI ILKHCHI, “FACTORS CONTROLLING DISTRIBUTION OF DIFFERENT TEXTURES OF ANHYDRITE CEMENT AND ITS RELATION TO RESERVOIR QUALITY IN THE UPPER DALAN AND KANGAN CARBONATE RESERVOIRS, SOUTH PARSFIELD,” JOURNAL OF STRATIGRAPHY AND SEDIMENTOLOGY RESEARCHES, vol. 27, no. 1 (42), pp. 1–26, 2011, [Online]. Available: https://sid.ir/paper/157115/en

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