ACTA SEDIMENTOLOGICA SINICA Vol. 30 No. 1 Feb X 1 8 B A B sina. com TE122. 2

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1 ACTA SEDIMENTOLOGICA SINICA Vol. 30 No. 1 Feb X 1 8 B A B rc_yang@ sina. com TE A ~ m ~ GG DMSM

2 ~ 10 m /km ~ 2. 0 mm ~ m 10% ~ 26% 15. 7% ~ m /100 m ~ MPa % ~ 10% % 4% ~ 14% % 1 ~ μm 2 1 Fig. 1 Tectonic location of the EastⅡpart of Sulige Gas Field 2 2 Fig. 2 Sandstone typese of the EastⅡpart of Sulige Gas Field

1 113 3e 3a 3f 3 3. 2 1 3b 3. 3 3c 2 8 1 3g 3d / 13 3 a. Z36 3087. 5 m 10 b. Z76 2954 m 10 c. Z73 2845. 7 m SEM d. Z68 2778 m SEM e. T32 2713.

3 e 3a 3f b c g 3d / 13 3 a. Z m 10 b. Z m 10 c. Z m SEM d. Z m SEM e. T m SEM f. Z m SEM g. T m 10 h. Z m 5 i. Z m 10 Fig. 3 Diagenesis characteristic of the EastⅡpart of Sulige Gas Field

4 I /S B ~ ~ h i i b A B A B SY /T ~ m R o A 0. 8% ~ 2% 8 1 B 2 X B 8 1 / 41% ~ 76% 12% ~ 35% I /S 0 0 ~ 23% 10% ~ 20% 5% ~ 19% S B 3 5 S 0 A Fig. 4 4 Distribution of homogenuous temperature of fluid inclusion in EastⅡpart of Sulige Gas Field

5 1 115 Fig The diagenesis sequence of sandstone in Shan 1 and He 8 section of the EastⅡpart of Sulige Gas Field CO 2 6 / < 2% > 5% B B X CO

6 Fig. 6 6 Corelations of sandstone component in the EastⅡpart of Sulige Gas Field P = / < m S % 35. 5% 39. 8% m 26% < m % % 8 1 V F % % V M 7. 31% 6. 87% N % 9. 60% S 6. 48% 5. 03%

7 C % % M DC C = P - V F - V M - N + S 8 C = P - V F - V M - N + S = % % % % % = 8. 69% 1 C = P - V F - V M - N + S = % % % % % = 9. 12% DC = C / P 100% % = % / = % % % % N V M % 3 FD FD = V F - M / P = V F - N V M % / P 100% 3 8 FD = V F - M / P = V F - N V M % / P 100% = % / = % 1 FD = V F - M / P = V F - N V M % / P 8 1 FD % % ~ 10. 9% ~ 140 A 14 B B 3i 8 1 > 15% % % 8 1 V F 5 B % % V M % A % % Table Statistical table of reservoir pores of Shan 1 He 8 reservoir in the studied area /% /% /% /% /% /% /% /% /μm

8 Journal of Chengdu University of Technolo- A A Northern Ordos basin J A gy J J / Wang Jianwei Bao Zhi- 2 J. B dong Chen Mengjin et al. northwestern Ordos J A B A J B Lan Zhaoli He Shunli Zhang Junfeng et al. Discussion on the factors of controlling the distribution of the reservoir sweet spots of Sulige Gas- 3 field J % % % % % % 5 9 A J. B References 1. 8 effective sandstone reservoirs in the Sulige Gas Field J. Petroleum J Zhang Minglu Da Shipan Chen Diaosheng. Diageneses and pore evolution of Permian reservoir in Sulige gas field J. Natural Gas Industry Exploration and Development J J Hu Jiangnai Zhang Shaonan Li Demin et al. The influence of diagenesis on reservoir quality in Shihezi-Shanxi Formation in Liu Rui e Sun Fenjin Bai Wenhua et al. An approach to the generating mechanism of secondary pores and pore evolution model of He 8 gas layer in Suligemiao gas field J. Petroleum Exploration and Development Liu Chenglin Zhu Xiaomin Zeng Qingmeng et al. Reservoir diagenetic sequence and pore evolution of Sulige gas field J. Natural Gas Industry Differentiation of sandstones tuff fillings and its effect on porosity An example from the Paleozoic sandstones in. Journal of Geology Journal of Xi'an Shiyou University Natural Science Edition 7. J He Zixin Fu Jinhua Xi Shengli et al. Geological features of reservoir formation of Sulige gas field J. Journal of Oil J Zhu Xiaomin Sun Lei Liu Chenglin et al. Reservoir diagenesis and fluid-rock interaction simulation of the Sulige gas field in the Ordos Basin J. Geology in China Li Huijun Wu Tairan Ma Zongjin et al. Research on the basic characteristics and control factors of high quality reservoir in sulige gas field J. Natural Gas Industry J He Dongbo Jia Ailin Tian Changbing et al. Diagenesis and genesis of Hui Kuanyang Zhang Shaonan Li Demin et al. 2. Reservoir petrology and diagenesis of lower Shihezi formation and

9 1 119 Shanxi formation in northern Ordos basin J. Journal of Chengdu U- niversity of Technology Wang Feng Tian Jingchun Li Fengjie et al. Diagenesis of reser- 12. voirs in the upper Paleozoic Member 8 formation in the Sulige area 8 1 J Hou Mingcai Dou Weitan Chen Hongde et al. Study on diagenesis of the He8 Member in Sulige gas field Ordos basin J. Mineral Petrology J J. Tournal of Lanzhou University Natural Sciences Salman Bloch Robert H Lander et al. Anomalously high porosity and permeability in deeply buried sandstone reservoirs Origin and predictability J. AAPG Bulletin Diagenesis of Sandstone and Genesis of Compact Reservoirs in the EastⅡPart of Sulige Gas Field Ordos Basin YANG Ren-chao WANG Xiu-ping FAN Ai-ping HAN Zuo-zhen ZHAO Juan WANG Yan-long Key Laboratory of Depositional Mineralization & Sedimentary Minerals of Shandong Province College of Geological Sciences & Engineering Shandong University of Science and Technology Qingdao Shandong Abstract Based on the experimental methods of slice identification casting slice scan electron microscope and X - ray diffractions characteristics of petrology and diagenesis on reservoir in Shan1 section of Shanxi Formation and He 8 section of Shihezi Formation of Permian system in the east Ⅱ part of Sulige gas field were studied. The result shows that the main lithology of sandstone in this area is dominated by lithic sandstone and lithic silicarenite with low grade of maturity. Diagenesis of sandstone in this area mainly include compaction cementation corrosion and alteration. Diagenetic minerals mainly include siliceous mineral chalcedony quartz secondary overgrowth and authigenic quartz small crystal clay minerals chlorite illitesmectite formation kaolinite illite and carbonate minerals calcite ferrocalcite ankerite etc. The highest diagenetic stage reach to period B of middle diagenetic stage on the basis of maturity of organic matter diagentic minerals homogenisation temperature of fluid inclusion etc. diagenetic symbols. Diagenesis of sandstone in the east Ⅱ part of Sulige gas field underwent syndiagenetic stage early diagenetic stage and middle diagenetic stage. Diagenetic environment succession went through faintly acidic environment in period A of early diagenetic stage relative highly acidic environment in period B of early diagenetic stage highly acidic environment in period A of middle diagenetic stage and faintly alkaline environment in period B of middle diagenetic stage. Fast decreasing of porosity could be seen in evolution curve of porosity caused by cementation from period B of early diagenetic stage to period A of middle diagenetic stage. The early diagenetic compaction is one of main factors to decreasing porosity of Shan1 section of Shanxi Formation and He 8 section of Shihezi Formation by means of quantitative calculation. Cementation is the most important factor to decreasing porosity in the studied area. Cementation in period B of middle diagenetic stage is the most important factor leading to poor physical property of sandstone reservoirs especially. The secondary pore formed by corrosion in acidity medium condition in period A of middle diagenetic stage can distinctly ameliorate poor reservoir capability of sandstone. Consequently erosion play a key role in promoting of physical property of sandstone reservoirs in the east Ⅱ part of Sulige gas field. Secondary pore formed by corrosion of calc - alkali volcanics rock feldspar and calcite cements in acidity medium condition in period A of middle diagenetic stage is main reserving space in the studied area. Corrosion of quartz particle was discovered in this area for the first time which implies properties of fluid medium transferred gradually from acidity to alkaline since period B of middle diagenetic stage. Key words Ordos basin Sulige gas field Permian system compact reservoir diagenesis porosity

Microsoft Word - 11--方刚_new_.doc

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