| Qingdao Institute of marine geology, China Geological Survey | Host |
| Citation: |
ZHAO Pengfei, SUN Cangjun, KANG Kai, BIE Xuwei. Differential diagenetic evolution and quantitative characterization of pores in the third Member of Dongying Formation in the western section of Shijiutuo Uplift[J]. Marine Geology Frontiers, 2022, 38(10): 42-50. doi: 10.16028/j.1009-2722.2022.137
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Differential diagenetic evolution and quantitative characterization of pores in the third Member of Dongying Formation in the western section of Shijiutuo Uplift
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Abstract
In order to quantitatively evaluate the influence of diagenesis on the pore development of different grain size reservoirs in the third Member of Dongying Formation of Well X-1 in the western section of Shijiutuo Uplift, the differences in pore evolution of different grain size reservoirs and their causes were analyzed by using cast thin sections, scanning electron microscopy, conventional physical properties and X-ray diffraction data.The results show that the middle-coarse grained sandstone is characterized by high content of authigenic kaolinite and secondary dissolution pores, the content of glutenite cements is medium but the secondary dissolution pores are relatively developed, and the fine-grained sandstone cements and secondary dissolution pores are underdeveloped. The diagenesis type of medium-coarse grained sandstone is relatively complete, and the sandstone is characterized by weak compaction, weak dissolution and weak cementation, while the fine-grained sandstone is dominated by compaction, and the dissolution and cementation of the mid-diagenetic stage A are not developed. From syngenetic stage to early diagenetic stage B, the diagenesis of the third Member of Dongying Formation is mainly mechanical compaction, which has the greatest influence on pore evolution of fine-grained sandstone. In the late stage A of middle diagenesis, it is characterized by iron-bearing carbonate cementation, which has A great influence on the pore evolution of middle-coarse grained sandstone, but its overall porosity is still the highest. The average porosity of the medium-coarse grained sandstone is 15.1%, 13.4% for conglomerate and 8.9% for fine-grained sandstone. Medium-coarse-grained sandstone has weak compaction effect, the strongest dissolution effect and the most developed pores. Although the compaction of conglomerate is weak, due to the complex pore structure and strong heterogeneity, the activity of diagenetic fluid is limited and the dissolution intensity of reservoir is affected. The fine-grained sandstone has high mud content, and the influence of compaction is the biggest, but the pore development is relatively worst. The research results have reference value for the prediction and evaluation of middle-deep effective reservoirs under the background of rapid accumulation near lacustrine basin in China.
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References
[1] 王启明,李瑾,周晓光,等. 石臼坨凸起西南缘陡坡带东三段古地貌对沉积的控制[J]. 东北石油大学学报,2016,40(6):53-59. doi: 10.3969/j.issn.2095-4107.2016.06.007 [2] 赵梦,徐长贵,杜晓峰,等. 石臼坨凸起西南陡坡带扇三角洲锆石定年与源汇示踪[J]. 地球科学:中国地质大学学报,2017,42(11):1985-1991. [3] 杜晓峰,王清斌,庞小军,等. 渤中凹陷石南陡坡带东三段源汇体系定量表征[J]. 岩性油气藏,2018,30(5):1-9. [4] 庞小军,王清斌,张雪芳,等. 渤海海域石臼坨凸起西南缘断层特征对油气成藏的控制作用[J]. 东北石油大学学报,2016,40(3):32-39. doi: 10.3969/j.issn.2095-4107.2016.03.005 [5] 江涛,黄晓波,陶莉,等. 石南断层分段特征及其对油气差异成藏的控制[J]. 断块油气田,2021,28(5):625-630. [6] 万琳,王清斌,代黎明,等. 应用恒速压汞技术定量评价低渗-特低渗砂岩储层微观孔喉特征:以石臼坨凸起陡坡带东三段为例[J]. 高校地质学报,2018,24(4):584-592. [7] 万琳,王清斌,赵国祥,等. 石臼坨凸起陡坡带东三段扇三角洲砂体成岩作用定量表征[J]. 大庆石油地质与开发,2017,36(6):31-37. [8] 孙藏军,别旭伟,聂玲玲,等. 渤海曹妃甸6-4油田东三段储层孔隙演化定量分析[J]. 中国海上油气,2019,31(6):44-51. [9] 王琪,马东旭,余芳,等. 鄂尔多斯盆地临兴地区下石盒子组不同粒级砂岩成岩演化及孔隙定量研究[J]. 沉积学报,2017,35(1):163-172. [10] XU L W,YANG K J,WEI H,et al. Pore evolution model and diagenetic evolution sequence of the Mesoproterozoic Xiamaling shale in Zhangjiakou,Hebei[J]. Journal of Petroleum Science and Engineering,2021,207(12):109-115. [11] ZINDORF M, ROOZE J, MEILE C, et al. Sulfur and carbon cycling in Fe dominated sediments from the Mozambique margin: past and current processes[C]//Goldschmidt Conference 2019, Barcelona, 2019. [12] 王琪,禚喜准,陈国俊,等. 鄂尔多斯盆地盐池-姬源地区三叠系长4+5砂岩成岩演化特征与优质储层分布[J]. 沉积学报,2005,23(3):397-404. doi: 10.3969/j.issn.1000-0550.2005.03.004 [13] 王瑞飞,陈明强. 储层沉积-成岩过程中孔隙度参数演化的定量分析:以鄂尔多斯盆地沿25区块、庄40区块为例[J]. 地质学报,2007,81(10):1433-1438. [14] 潘高峰,刘震,赵舒,等. 砂岩孔隙度演化定量模拟方法:以鄂尔多斯盆地镇泾地区延长组为例[J]. 石油学报,2011,32(2):249-256. doi: 10.7623/syxb201102009 [15] 唐俊,王琪,廖朋,等. 鄂尔多斯盆地环县地区长8段砂岩储层孔隙度演化定量模拟[J]. 兰州大学学报(自然科学版),2013,24(1):321-331. [16] 张茜,孙卫,任大忠. 鄂尔多斯盆地华庆地区长63储层成藏期孔隙度定量演化及致密成因机理[J]. 地质与勘探,2017,53(4):807-817. [17] 施振生,李熙喆,董大忠,等. 致密砂岩储层成岩作用与孔隙演化:以川西南上三叠统为例[J]. 地学前缘,2018,25(2):180-190. doi: 10.13745/j.esf.yx.2017-6-4 [18] SOMBRA C L, CHANG H K. Burial history and porosity evolution of Brazilian Upper Jurassic to Tertiary sandstone reservoirs[C]//American Association of Petroleum Geologists Memoir, 1997, 69: 79-89. -
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ZHAO Pengfei, SUN Cangjun, KANG Kai, BIE Xuwei. Differential diagenetic evolution and quantitative characterization of pores in the third Member of Dongying Formation in the western section of Shijiutuo Uplift[J]. Marine Geology Frontiers, 2022, 38(10): 42-50. doi: 10.16028/j.1009-2722.2022.137
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Figure 1.
Regional tectonic location[5]（a）, single well histogram of Well X-1 （b） and sedimentary facies in the third Member of Dongying Formation in the study area [1-2]（c）
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Figure 2.
The core, cast thin sections and SEM images of different rock types of the third Member of Dongying Formation
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Figure 3.
Micrograph of reservoir diagenesis of the third Member of Dongying Formation
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Figure 4.
Diagenetic evolution sequence of different lithologies of the third Member of Dongying Formation
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Figure 5.
Reservoir pore evolution model of the third Member of Dongying Formation