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  • Cementation and porosity evolution of tight

    Cited by: 8
  • Cementation and porosity evolution of tight

    Cementation and porosity evolution of tight sandstone reservoirs in the Permian Sulige gas field, Ordos Basin (central China) Article in Marine and Petroleum Geology 103 February 2019 with 54 Reads

  • Cementation and porosity evolution of tight

    Cited by: 8
  • Dissolution versus cementation and its role in

    Author: Yong Li, Weikai Xu, Peng Wu, Shangzhi Meng
  • Diagenetic evolution and its impact on reservoir

    Diagenetic evolution and its impact on reservoir quality of tight sandstones: A case study of the Triassic Chang 6 Member, Ordos Basin, northwest China ... Discuss diagenetic events on tight sandstone reservoir quality quantitatively. ... while the cementation porosity loss accounts for up to 42.8%. Carbonate cements and the other authigenic ...

  • Sedimentology, diagenetic evolution, and sweet spot ...

    Diagenetic evolution sequence and porosity evolution of the Es3 sandstone reservoir. During this diagenetic stage, the sedimentary environment of Es3 sandstones was a shallow burial environment, with temperatures ranging from the surface temperature to 65 °C

  • Diagenesis and porosity evolution of tight sand

    Keywords: diagenesis, porosity evolution, tight sandstone, Benxi Formation, Southeast Ordos Basin Acknowledgements: We greatfully acknowledge Yanchang Petroleum for providing the samples and data access and for permission to publish this work. The first author, Peng Hu, would like to thank the support from Prof. Xinghe Yu.

  • Depositional and Diagenetic Controls on Sandstone ...

    Aiping Fan, Renchao Yang, Nils Lenhardt, Meng Wang, Zuozhen Han, Jinbu Li, Yijun Li, Zhongjun Zhao, Cementation and porosity evolution of tight sandstone reservoirs in the Permian Sulige gas field, Ordos Basin (central China), Marine and Petroleum Geology, 10.1016/j.marpetgeo.2019.02.010, (2019).

  • Quantitative Evaluation of Diagenesis and Porosity ...

    The secondary porosity formed by corrosion that was more common but not very strong to improve the reservoir porosities of sandstone in different degrees. Based on this observation, we further established a diagenetic-porosity evolution model of the Chang 6 3 –Chang 7 2 sandstone oil reservoir study district.

  • Diagenesis and its impact on reservoir quality for the ...

    2017-11-14  the initial reservoir porosity is about 30.59%. 16.925% overall porosity is lost through compaction, 11.65% porosity loss is due to cementation, and 6.36% porosity was created by dissolution. Finally, the reservoir is holding 8.375% porosity in present. Keywords Ordos basin Yanchang Formation Tight sandstone Diagenesis Porosity evolution ...

  • Carbonate Cementation in Sandstones: Distribution

    From 12 Ma to present, abundant Ca²⁺, Fe³⁺, Fe²⁺, Mg²⁺ and bicarbonate had been transported from mudstone to sandstone via diffusion to form tight ferroan calcite cementation in the ...

  • Porosity evolution in tight gas sands of the Upper ...

    Cretaceous, were the key stages for porosity loss because of the intensive compaction, cementation and formation of authigenic minerals. At the end of Mesogenesis, the remaining porosity in the tight gas sand of the Xu2 Member decreased by 6–10%. From the late Cretaceous to the present, the remaining porosity sharply decreased, and the tight ...

  • Diagenesis and Porosity Evolution of the Low-porosity and ...

    2015-3-11  [4]Li Shixiang,Hu Mingyi,Li Fuping.Diagenesis and porosity evolution of Upper Triassic Xujiahe Formation sandstone in western Sichuan Foreland Basin[J].Natural Gas Geoscience,2007,18(4):535-539.[李士祥,胡明毅,李浮萍.川西前陆盆地上三叠统须家河组砂岩成

  • Diagenesis of low-permeability and tight sandstone gas ...

    The characteristics of petrology,the diagenesis and porosity evolution in the eighth member of Shihezi formation in Su 48 block in Sulige gasfield were analyzed,using thin-sections,casting thin-sections, X-ray diffractions,scanning electron micrograph observations,etc ...

  • Diagenetic characteristics and quantitative evolution

    Yang Gao, Zhizhang Wang, Shiwei Yi, Yuanqi She, Shiguo Lin, Mingpeng Li, Zhen Yang, Shanshan Chen; Diagenetic characteristics and quantitative evolution of porosity in tight gas sandstone reservoirs: A case study from the middle and lower Permian in the northwestern Ordos Basin, China.

  • Quantitative Evaluation of Diagenesis and Porosity ...

    In order to study the diagenesis and porosity evolution of tight sandstone reservoirs, a comprehensive study of Yanchang 6th and 7th members based on core and optical observations, logging data, as well as porosity and permeability data has been carried out in this work, and

  • A Method of Quantitative Evaluation of Diagenetic ...

    permeability tight sandstone reservoir. 1. CHARACTERISTIC OF DIAGENETIC RESERVOIR FACIES Upper Paleozoic Shan 1 period of the SuLige Eastern tight gas reservoir is a meandering river deposition. Its sediments sorted poorly, diagenesis was complex, compaction and cementation

  • Depositional and Diagenetic Controls on Pore

    Cementation decreases permeability by filling primary porosity and pore throats, while compaction decreases porosity by establishing tighter inter‐grain contacts. However, dissolution of framework grains is the major process improving porosity and then permeability by enlarging pores and pore throats (Taghavi et al ., 2006 ).

  • 文章详细信息

    参考文献(References): [1]LANDER R H,WALDERHAUG O.Porosity prediction through simulating of sandstone compaction and quartz cementation[J].AAPG Bulletin,1999,83(3):433-449. [2]廖明光,李驰,南郡祥,等.苏里格地区盒8段储层成岩作用与孔隙演化定量分析 ...

  • 西湖凹陷Y构造花港组致密砂岩储层孔隙演化模式

    2017-4-13  LI Qian, ZHANG Ping, YAN Jie, YANG Pengcheng. The Porosity Evolution of Tight Sandstone Reservoir of Huagang Formation in the Y Geological Structure in Xihu Depression[J]. OFFSHORE OIL, 2017, 37(4): 29-34.

  • Diagenetic characteristics and quantitative evolution

    Yang Gao, Zhizhang Wang, Shiwei Yi, Yuanqi She, Shiguo Lin, Mingpeng Li, Zhen Yang, Shanshan Chen; Diagenetic characteristics and quantitative evolution of porosity in tight gas sandstone reservoirs: A case study from the middle and lower Permian in the northwestern Ordos Basin, China.

  • Impact of Differential Densification on the Pore

    The tight sandstone reservoirs of the Permian Shihezi and Shanxi Formation with strong heterogeneity constitute the main producing zone of the eastern Sulige gas field. The process of differential densification results in various reservoir qualities. Mineral composition, structural characteristic, pore system, and diagenesis were investigated with analyses of well logs, thin sections, porosity ...

  • Diagenesis and its impact on reservoir quality for the ...

    Fig. 13 Schematic diagram of diagenetic stage division and pore evolution for Chang 8 oil group reservoir of Yanchang Formation in study area In summary, the Chang 8 tight sandstone develops relatively intense compaction and cementation, as well as the typical feldspar and rock fragments dissolution during the diagenetic evolution.

  • Diagenesis and porosity evolution of tight sand reservoirs ...

    respectively. Dissolution of volcanic fragments and feldspar increased reservoir porosity by 4.14%. The pores were occluded by late minerals and carbonate cements, resulting in a reduction of 9.38%. Overall, the dual in-fluence of compaction and cementation is the key of the key, controlling formation of tight gas sandstone reservoirs.

  • Diagenetic controls on reservoir quality of tight ...

    Diagenetic controls on reservoir quality of tight sandstone: A case study of the Upper Triassic Yanchang formation Chang 7 sandstones, Ordos Basin, China Through a range of petrological techniques, the petrology, diagenesis, pore characteristics, and controlling factors on the regional variations of reservoir quality of the Chang 7 sandstones ...

  • Improvement and application of quantitative

    Abstract: Porosity evolution of reservoirs is a key and difficult point of the study on hydrocarbon accumulation mechanism.But the present research methods of "porosity inversion and back stripping" have some flaws,including equating thin section porosity with porosity,attributing the porosity loss by compaction to early diagenetic stage,and ...

  • Binary pore structure characteristics of tight sandstone ...

    2019-4-16  Abstract: Tight sandstone has complex pore system, so a simplified and reasonable pore model is critical for understanding the pore structure. The pore structure and its influence on physical properties and oil saturation of the Chang 7 sandstones, Ordos Basin were discussed using thin sections, porosity and permeability, oil saturation and mercury intrusion data.

  • Depositional and Diagenetic Controls on Pore

    Cementation decreases permeability by filling primary porosity and pore throats, while compaction decreases porosity by establishing tighter inter‐grain contacts. However, dissolution of framework grains is the major process improving porosity and then permeability by enlarging pores and pore throats (Taghavi et al ., 2006 ).

  • Effect of alkaline diagenesis on sandstone reservoir ...

    2020-2-3  2. Porosity evolution analysis. According to the formula for calculating the original porosity of unconsolidated sandstone , the sandstone sorting coefficient of the Tengger Formation is between 1.58 and 2.76, with an average value of 2.18. The original porosity of the Tengger Formation was 29.21–35.40%, with an average value of 31.55%.

  • 鄂尔多斯盆地东缘康宁地区二叠系致密储层成岩作用与孔隙 ...

    2018-10-9  岩性油气藏, 2016, 28(4):62-63. WANG Y, LI S T, MOU W W, et al. Tight reservoir characteristics and porosity evolution of Chang 81 in western Jiyuan area. Lithologic Reservoirs, 2016, 28(4):62-63. [11] ZOU C N, ZHU R K, LIU K Y, et al. Tight gas sandstone

  • Impact of Differential Densification on the Pore

    The tight sandstone reservoirs of the Permian Shihezi and Shanxi Formation with strong heterogeneity constitute the main producing zone of the eastern Sulige gas field. The process of differential densification results in various reservoir qualities. Mineral composition, structural characteristic, pore system, and diagenesis were investigated with analyses of well logs, thin sections, porosity ...

  • Experimental study of sandstone cementation

    Evolution of quartz cementation during burial of the Cambrian Mount Simon Sandstone, Illinois Basin: In situ microanalysis of δ 18 O Geology Laboratory measurements of porosity, permeability, resistivity, and velocity on Fontainebleau sandstones

  • tight reservoir 的翻译结果--cnki翻译助手

    Compaction, cementation and replacement reduced the porosity and permeability of the reservoir, and dissolution enlarged the reservoir space. According to the characteristics of organic evolution and diagenetic mineral composition, the diagenesis was classified

  • Effect of alkaline diagenesis on sandstone reservoir ...

    2020-2-3  2. Porosity evolution analysis. According to the formula for calculating the original porosity of unconsolidated sandstone , the sandstone sorting coefficient of the Tengger Formation is between 1.58 and 2.76, with an average value of 2.18. The original porosity of the Tengger Formation was 29.21–35.40%, with an average value of 31.55%.

  • Diagenetic controls on reservoir quality of tight ...

    Diagenetic controls on reservoir quality of tight sandstone: A case study of the Upper Triassic Yanchang formation Chang 7 sandstones, Ordos Basin, China Through a range of petrological techniques, the petrology, diagenesis, pore characteristics, and controlling factors on the regional variations of reservoir quality of the Chang 7 sandstones ...

  • Characteristics of Tight Sandstone Reservoirs and

    2019-5-16  are typical tight sandstones (with porosity < 10% and permeability < 1 mD accounting for 80.3% of the total samples). burial is the main reason for reservoir densification, which resulted in 61% loss of the primary porosity. In this process, the quartz protected the original porosity

  • A Petrophysical Dual-Porosity Model for Evaluation of ...

    Summary Quantification of secondary mineralization or cementation within natural fractures has not been considered in previous petrophysical dual-porosity models. This is, however, of paramount importance because morphology of the fractures indicate

  • Origin and Distribution of Carbonate Cement in Tight ...

    Understanding diagenetic heterogeneity is vital for hydrocarbon exploration in tight sandstone reservoirs [].Carbonate cementation is an important diagenetic alteration that has profound impact on sandstone reservoir quality and heterogeneity [9–12].Precipitation of carbonate cement is an important agent of lithification [], and it often contributes to the poor reservoir property.

  • Diagenesis-porosity evolution and “sweet spot” distribution

    Diagenesis-porosity evolution and “sweet spot” distribution of low permeability reservoirs: A case study from Oligocene Zhuhai Formation in Wenchang A sag, Pear River Mouth Basin, northern South China Sea YOU Li 1, 2, XU Shouli 2, LI Cai 2 2, ZHAO Zhanjie

  • PERMEABILITY EVOLUTION IN SANDSTONE: DIGITAL

    2010-6-21  three of the Minnelusa permeability data: porous, patchy, and tight. 116 Table 8.2 Results of the effective porosity and permeability calculation using two of the Minnelusa permeability data: patchy and tight. 117 Table 8.3 List of lab-measured and computed porosity and permeability for Berea plug # 92-96. 120 Table 8.4.