Diagenesisof Lacustrine Deltaic Sandstones and Its Impact on Reservoir Quality

ZHANG Jin-liang; SI Xue-qiang; LIANG Jie; LIN Hui

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Article Navigation > Acta Sedimentologica Sinica > 2004 > 22(2): 225-233

ZHANG Jin-liang, SI Xue-qiang, LIANG Jie, LIN Hui. Diagenesisof Lacustrine Deltaic Sandstones and Its Impact on Reservoir Quality[J]. Acta Sedimentologica Sinica, 2004, 22(2): 225-233.

Citation:

ZHANG Jin-liang, SI Xue-qiang, LIANG Jie, LIN Hui. Diagenesisof Lacustrine Deltaic Sandstones and Its Impact on Reservoir Quality[J]. Acta Sedimentologica Sinica, 2004, 22(2): 225-233.

Diagenesisof Lacustrine Deltaic Sandstones and Its Impact on Reservoir Quality

Ocean University of China, QingdaoShandong 266003

Received Date: 2003-04-07
Rev Recd Date: 2003-06-01
Publish Date: 2004-06-10

Abstract

Sedimentation during stage of Chang-8 deposition was controlled by a lacustrine delta system.The Chang-8 member is an important finger-bar reservoir-sandstone in Qingyang area. Sandstone reservoirs can be classified as compositionally immature feldspathic lithareniteand lithic arkose. The main diagenetic minerals of thesandstones include: authigenetic clayminerals, calcite cement, quartz overgrowth, albiteand later ferroan carbonate. Authigenic quartz overgrowths and micro-crystals contain a variety of organic fluid inclusions that indicate the petroleum filling history. Petroleum filling history showsthat the significant later filling process affectedreservoir quality.Porosity preservation caused by grain-coating , authigenic chlorite. Wide porosity variations in sandstones correlate with an abundance of grain-coating chlorite and consequent inhibition of quartz cementation. Secondary porosity has created mainly by feldspar, rock fragment and clay matrix dissolution. The dissolution mechanisim is closely related to organic acids and transformation of clayminerals in adjacentsource rocks. Based on diagenetic events related to temperature, reservoir diagenetic stages can be dividedinto A-substage of later diagenesis. Reservoir quality is controlled mostly by sedimentary microfacies and diagenesis. Subaquoeus distributary channeland mouth barsandbodies commonly have high porosity and permeability, whereas interdistributary and distal sandsheets may have low petrophysical properties.The study shows that the Chang-8 sandstone locally retained excellent porosities controlled by diagenetic facies despite deep burial and thermal conditions.
- lacustrine delta,
- chlorite rim,
- secondary porosity,
- diagenetic model,
- diagenetic facies,
- reservoir quality

References

[1]	吴崇筠,薛叔浩.中国含油气盆地沉积学.北京:石油工业出版社,1993. 268～293[Wu Chongyun, Xue Shuhao. Petroliferous basin sedimentology in China. Beijing: Petroleum Industry Press, 1993. 268～293]
[2]	牟泽辉.鄂尔多斯盆地庆阳以南三叠系延长组长5、长6、长7储层成岩作用.天然气工业,2001,21(2):13～17[Mou Zehui. Diagenesis of Chang 5～7 reservoirs of Yanchang Formation in Qingnan area of Ordos basin. Natural Gas Industry, 2001,21(2):13～17]
[3]	喻建,韩永林,凌升阶.鄂尔多斯盆地三叠系延长组油田成藏地质特征及油藏类型.中国石油勘探,2001,6(4):13～19[Yu Jian, Han Yonglin, Ling Shengjie. Pool-forming geology and pool types of Yanchang Formation of Upper Triassic in Ordos basin. China Petroleum Exploration, 2001,6(4):13～19]
[4]	刘宝珺主编.沉积岩石学.北京:地质出版社,1980. 123～319[Liu Baojun, ed. Sedimentary Petrology. Beijing: Geological Publishing House, 1980. 123～135
[5]	Salman K, Lander R H, Bonnell L. Anomalously high porosity and permeability in deeply buried sandstone reservoirs:Origin and predictability. AAPG Bulletin, 2002, 86(2): 301～328
[6]	Pittman E D, Larese R E, Heald M T. Clay coats: occurrence and relevance to preservation of porosity in sandstones. In: Houseknecht D W, Pittman E D, eds. Origin, diagenesis, and petrophysics of clay minerals in sandstones. SEPM Special Publication, 1995, 47: 241～255
[7]	罗静兰,张晓莉,张云翔,等.成岩作用对河流-三角洲相砂岩储层物性演化的影响.沉积学报,2001,19(4):541～547[Luo Jinglan, Zhang Xiaoli, Zhang Yunxiang, et al. The diagenetic impact on reservoir quality evolution of fluvial deltaic sandstones. Acta Sedimentologica Sinica,2001,19(4):541～547]
[8]	罗静兰,Morad S,阎世可,等.河流-湖泊三角洲相砂岩成岩作用的重建及其对储层物性演化的影响.中国科学(D辑),2001,31(12):1006～1016[Luo Jinglan, Morad S,Yan Shike, et al. Diagenetic reconstruction of fluvial deltaic sandstones and diagenetic impact on reservoir quality evolution. Science in China(series D), 2001,31(12):1006～1016]
[9]	柳益群,李文厚.鄂尔多斯盆地东部上三叠统含油长石砂岩的成岩特点及孔隙演化.沉积学报,1996,14(3):87～96[Liu Yiqun, Li Wenhou. Diagenetic characteristics and porosity evolution of the oil-bearing arkoses in the Upper Triassic in the Eastern Shan-Gan-Ning basin. Acta Sedimentologica Sinica, 1996,14(3):87～96]
[10]	郑浚茂,庞明编著.碎屑储集岩的成岩作用研究.武汉:中国地质大学出版社,1989. 53～85[Zheng Junmao,Pang Ming. Sdudy on clastic diagenesis. Wuhan: Publishing House of China University of Geosciences , 1989. 53～85]
[11]	张金亮,常象春,刘宝珺,等.苏北盐城油气藏流体历史分析及成藏机理.地质学报,2002,76(2):254～260[Zhang Jinliang, Chang Xiangchun, Liu Baojun, et al. Fluid history analysis and formation mechanisim of the Yancheng petroleum reservoir. Acta Geologica Sinica, 2002,76(2):254～260]
[12]	毛凤鸣,张金亮,许正龙.高邮凹陷油气成藏地球化学.北京:石油工业出版社,2002. 84～150[Mao Fengming, Zhang Jinliang, Xu Zhenglong, Pool-forming geochemistry of Gaoyou depression. Beijing: Petroleum Industry Press, 2002. 84～150]
[13]	Marchant M E,Smalley P C, Haszeldine R S, et al. Note on the importance of hydrocarbon fill for reservoir quality prediction in sandstones. AAPG Bulletin, 2002, 86(9): 1561～1571
[14]	朱国华.碎屑岩储集层孔隙的形成、演化和预测.沉积学报,1992,10(3):114～123[Zhu Guohua. Origin and evolution and prediction of porosity in clastic reservoir rocks. Acta Sedimentologica Sinica, 1992,10(3):114～123]
[15]	Surdam R C, Boese S W, Crossey L J. The geochemistry of secondary porosity. In: McDonald D A,Surdam R C, eds. Clastic diagenesis.AAPG Memoir, 1984, 37: 127～149
[16]	Surdam R C, Crossey.L J, Hagen E S, et al. Organic-inorganic interaction and sandstone diagenesis. AAPG Bulletin, 1989, 78(1): 1～23
[17]	Meshri I D. On the reactivity of carbonic and organic acids and generation of secondary porosity. In: Gautier D L, ed. Roles of organic matter in sediment diagenesis,, SEPM special publication 1986, 38:123～128
[18]	裘怿楠,薛叔浩,应凤祥.中国陆相油气储集层.北京:石油工业出版社,1997. 158～219[Qiu Yinan, Xue Shuhao,Ying Fengxiang. Continental hydrocarbon reservoirs of China. Beijing: Petroleum Industry Press, 1997. 158～219]
[19]	柳益群,李文厚,冯乔.鄂尔多斯盆地东部上三叠统含油砂岩的古地温及成岩阶段.地质学报,1997,71(1):65～74[Liu Yiqun, Li Wenhou,Feng Qiao. Palaeotemperatures and diagenetic stage of the Upper Triassic Ordos basin. Acta Geologica Sinica, 1997,71(1):65～74]
[20]	Alaa M, Salem S, Morad S,et al.Diagenesis and reservoir quality evolution of fluvial sandstones during progressive burial and uplift: evidence from the Upper Jurassic Boipeba Member, Reconcavo Basin, Northeast Brazil. AAPG Bulletin, 2000, 84(7): 1015～1040
[21]	张金亮,刘宝珺,毛凤鸣,等.苏北盆地高邮凹陷北斜坡阜宁组成岩作用及储层特征.石油学报,2003,24(2):43～49[Zhang Jinliang, Liu Baojun,Mao Fengming, et al. Diagenesis and reservoir characteristics of Funing Formation in north slope of Gaoyou depression in Subei Basin . Acta Petrolei Sinica,2003,24(2):43～49]
[22]	Wescott W A. Diagenesis of Cotton Valley sandstone(Upper Jurassic), East Texas: Implication for tight gas formation pay recognition. AAPG Bulletin, 1983, 67(6): 1002～1013
[23]	张金亮.东濮凹陷桥口地区沙三段碎屑岩成岩作用与储层特征.矿物岩石,1990,10(1):35～42[Zhang Jinliang. Clastic diagenesis and reservoir characteristics of the third member of Shahejie Formation in Dongpu Depression. Mineral and Rock, 1990,10(1):35～42]
[24]	林壬子,张金亮.陆相储层沉积学进展.北京:石油工业出版社,1996. 97～127[Lin Renzi, Zhang Jinliang. Developments in nonmarine sedimentology. Beijing: Petroleum Industry Press, 1996: 97～127]
[25]	Houseknecht D W. Assessing the relative importance of compaction processes and cementation to reduction of porosity in sandstones. AAPG Bulletin,1987, 71(6): 633～64

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通讯作者: 陈斌, bchen63@163.com

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Diagenesisof Lacustrine Deltaic Sandstones and Its Impact on Reservoir Quality

Ocean University of China, QingdaoShandong 266003

Received Date: 2003-04-07

Rev Recd Date: 2003-06-01

Publish Date: 2004-06-10

Key words:

Abstract: Sedimentation during stage of Chang-8 deposition was controlled by a lacustrine delta system.The Chang-8 member is an important finger-bar reservoir-sandstone in Qingyang area. Sandstone reservoirs can be classified as compositionally immature feldspathic lithareniteand lithic arkose. The main diagenetic minerals of thesandstones include: authigenetic clayminerals, calcite cement, quartz overgrowth, albiteand later ferroan carbonate. Authigenic quartz overgrowths and micro-crystals contain a variety of organic fluid inclusions that indicate the petroleum filling history. Petroleum filling history showsthat the significant later filling process affectedreservoir quality.Porosity preservation caused by grain-coating , authigenic chlorite. Wide porosity variations in sandstones correlate with an abundance of grain-coating chlorite and consequent inhibition of quartz cementation. Secondary porosity has created mainly by feldspar, rock fragment and clay matrix dissolution. The dissolution mechanisim is closely related to organic acids and transformation of clayminerals in adjacentsource rocks. Based on diagenetic events related to temperature, reservoir diagenetic stages can be dividedinto A-substage of later diagenesis. Reservoir quality is controlled mostly by sedimentary microfacies and diagenesis. Subaquoeus distributary channeland mouth barsandbodies commonly have high porosity and permeability, whereas interdistributary and distal sandsheets may have low petrophysical properties.The study shows that the Chang-8 sandstone locally retained excellent porosities controlled by diagenetic facies despite deep burial and thermal conditions.

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Reference (25)

[1]	吴崇筠,薛叔浩.中国含油气盆地沉积学.北京:石油工业出版社,1993. 268～293[Wu Chongyun, Xue Shuhao. Petroliferous basin sedimentology in China. Beijing: Petroleum Industry Press, 1993. 268～293]
[2]	牟泽辉.鄂尔多斯盆地庆阳以南三叠系延长组长5、长6、长7储层成岩作用.天然气工业,2001,21(2):13～17[Mou Zehui. Diagenesis of Chang 5～7 reservoirs of Yanchang Formation in Qingnan area of Ordos basin. Natural Gas Industry, 2001,21(2):13～17]
[3]	喻建,韩永林,凌升阶.鄂尔多斯盆地三叠系延长组油田成藏地质特征及油藏类型.中国石油勘探,2001,6(4):13～19[Yu Jian, Han Yonglin, Ling Shengjie. Pool-forming geology and pool types of Yanchang Formation of Upper Triassic in Ordos basin. China Petroleum Exploration, 2001,6(4):13～19]
[4]	刘宝珺主编.沉积岩石学.北京:地质出版社,1980. 123～319[Liu Baojun, ed. Sedimentary Petrology. Beijing: Geological Publishing House, 1980. 123～135
[5]	Salman K, Lander R H, Bonnell L. Anomalously high porosity and permeability in deeply buried sandstone reservoirs:Origin and predictability. AAPG Bulletin, 2002, 86(2): 301～328
[6]	Pittman E D, Larese R E, Heald M T. Clay coats: occurrence and relevance to preservation of porosity in sandstones. In: Houseknecht D W, Pittman E D, eds. Origin, diagenesis, and petrophysics of clay minerals in sandstones. SEPM Special Publication, 1995, 47: 241～255
[7]	罗静兰,张晓莉,张云翔,等.成岩作用对河流-三角洲相砂岩储层物性演化的影响.沉积学报,2001,19(4):541～547[Luo Jinglan, Zhang Xiaoli, Zhang Yunxiang, et al. The diagenetic impact on reservoir quality evolution of fluvial deltaic sandstones. Acta Sedimentologica Sinica,2001,19(4):541～547]
[8]	罗静兰,Morad S,阎世可,等.河流-湖泊三角洲相砂岩成岩作用的重建及其对储层物性演化的影响.中国科学(D辑),2001,31(12):1006～1016[Luo Jinglan, Morad S,Yan Shike, et al. Diagenetic reconstruction of fluvial deltaic sandstones and diagenetic impact on reservoir quality evolution. Science in China(series D), 2001,31(12):1006～1016]
[9]	柳益群,李文厚.鄂尔多斯盆地东部上三叠统含油长石砂岩的成岩特点及孔隙演化.沉积学报,1996,14(3):87～96[Liu Yiqun, Li Wenhou. Diagenetic characteristics and porosity evolution of the oil-bearing arkoses in the Upper Triassic in the Eastern Shan-Gan-Ning basin. Acta Sedimentologica Sinica, 1996,14(3):87～96]
[10]	郑浚茂,庞明编著.碎屑储集岩的成岩作用研究.武汉:中国地质大学出版社,1989. 53～85[Zheng Junmao,Pang Ming. Sdudy on clastic diagenesis. Wuhan: Publishing House of China University of Geosciences , 1989. 53～85]
[11]	张金亮,常象春,刘宝珺,等.苏北盐城油气藏流体历史分析及成藏机理.地质学报,2002,76(2):254～260[Zhang Jinliang, Chang Xiangchun, Liu Baojun, et al. Fluid history analysis and formation mechanisim of the Yancheng petroleum reservoir. Acta Geologica Sinica, 2002,76(2):254～260]
[12]	毛凤鸣,张金亮,许正龙.高邮凹陷油气成藏地球化学.北京:石油工业出版社,2002. 84～150[Mao Fengming, Zhang Jinliang, Xu Zhenglong, Pool-forming geochemistry of Gaoyou depression. Beijing: Petroleum Industry Press, 2002. 84～150]
[13]	Marchant M E,Smalley P C, Haszeldine R S, et al. Note on the importance of hydrocarbon fill for reservoir quality prediction in sandstones. AAPG Bulletin, 2002, 86(9): 1561～1571
[14]	朱国华.碎屑岩储集层孔隙的形成、演化和预测.沉积学报,1992,10(3):114～123[Zhu Guohua. Origin and evolution and prediction of porosity in clastic reservoir rocks. Acta Sedimentologica Sinica, 1992,10(3):114～123]
[15]	Surdam R C, Boese S W, Crossey L J. The geochemistry of secondary porosity. In: McDonald D A,Surdam R C, eds. Clastic diagenesis.AAPG Memoir, 1984, 37: 127～149
[16]	Surdam R C, Crossey.L J, Hagen E S, et al. Organic-inorganic interaction and sandstone diagenesis. AAPG Bulletin, 1989, 78(1): 1～23
[17]	Meshri I D. On the reactivity of carbonic and organic acids and generation of secondary porosity. In: Gautier D L, ed. Roles of organic matter in sediment diagenesis,, SEPM special publication 1986, 38:123～128
[18]	裘怿楠,薛叔浩,应凤祥.中国陆相油气储集层.北京:石油工业出版社,1997. 158～219[Qiu Yinan, Xue Shuhao,Ying Fengxiang. Continental hydrocarbon reservoirs of China. Beijing: Petroleum Industry Press, 1997. 158～219]
[19]	柳益群,李文厚,冯乔.鄂尔多斯盆地东部上三叠统含油砂岩的古地温及成岩阶段.地质学报,1997,71(1):65～74[Liu Yiqun, Li Wenhou,Feng Qiao. Palaeotemperatures and diagenetic stage of the Upper Triassic Ordos basin. Acta Geologica Sinica, 1997,71(1):65～74]
[20]	Alaa M, Salem S, Morad S,et al.Diagenesis and reservoir quality evolution of fluvial sandstones during progressive burial and uplift: evidence from the Upper Jurassic Boipeba Member, Reconcavo Basin, Northeast Brazil. AAPG Bulletin, 2000, 84(7): 1015～1040
[21]	张金亮,刘宝珺,毛凤鸣,等.苏北盆地高邮凹陷北斜坡阜宁组成岩作用及储层特征.石油学报,2003,24(2):43～49[Zhang Jinliang, Liu Baojun,Mao Fengming, et al. Diagenesis and reservoir characteristics of Funing Formation in north slope of Gaoyou depression in Subei Basin . Acta Petrolei Sinica,2003,24(2):43～49]
[22]	Wescott W A. Diagenesis of Cotton Valley sandstone(Upper Jurassic), East Texas: Implication for tight gas formation pay recognition. AAPG Bulletin, 1983, 67(6): 1002～1013
[23]	张金亮.东濮凹陷桥口地区沙三段碎屑岩成岩作用与储层特征.矿物岩石,1990,10(1):35～42[Zhang Jinliang. Clastic diagenesis and reservoir characteristics of the third member of Shahejie Formation in Dongpu Depression. Mineral and Rock, 1990,10(1):35～42]
[24]	林壬子,张金亮.陆相储层沉积学进展.北京:石油工业出版社,1996. 97～127[Lin Renzi, Zhang Jinliang. Developments in nonmarine sedimentology. Beijing: Petroleum Industry Press, 1996: 97～127]
[25]	Houseknecht D W. Assessing the relative importance of compaction processes and cementation to reduction of porosity in sandstones. AAPG Bulletin,1987, 71(6): 633～64

Diagenesisof Lacustrine Deltaic Sandstones and Its Impact on Reservoir Quality

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