SEDIMENTARY FACIES AND FAVORABLE SAND BODY DISTRIBUTION OF JIUFOTANG FORMATION IN LUDONG DEPRESSION, KAILU BASIN
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摘要:
为研究开鲁盆地陆东凹陷交力格地区九佛堂组层序格架下沉积特征和有利砂体的分布, 采用灰色关联分析法求取综合评价因子RQI对有利储集相带进行预测, 明确了九佛堂组沉积演化过程中不同沉积体系的动态变化及沉积相展布. 通过层序界面、体系域界面识别将地层划分为低位域、湖浸域、高位域. 在体系域内近岸堆积-半深湖和扇三角洲-滨浅湖两套沉积体系交替发育. 低位域末期-湖浸域时期扇三角洲主要发育前缘相带. 通过岩相特征、地震相特征、单井精细刻画等手段共识别8种不同沉积微相. 对沉积相展布特征进行了详细刻画, 并将储层划分为3类, 其中扇三角洲前缘内牵引流成因砂体形成的储层最好, 近岸堆积及前缘根部泥石流、洪流成因砂体形成的储层最差. 此结果可为研究区进一步勘探开发提供依据.
Abstract:To study the sedimentary characteristics and distribution of favorable sand bodies in the sequence stratigraphic framework of Jiufotang Formation in Jiaolige area of Ludong depression, Kailu Basin, the paper adopts grey correlation analysis method to calculate the comprehensive evaluation factor of reservoir quality index (RQI) and predict the favorable reservoir facies belt, and defines the dynamic changes of different sedimentary systems and sedimentary facies distribution during the sedimentary evolution process of Jiufotang Formation. The strata can be divided into lowstand system tract, lake-flooding system domain and highstand system tract through the identification of sequence interface and system tract interface. Two sedimentary systems of nearshore accumulation-semi deep lake and fan delta-shore shallow lake are alternately developed in the system tract. The front facies belt is mainly developed in the fan delta during the late lowstand system tract and lake-flooding system domain periods. Eight sedimentary microfacies are identified based on the lithofacies, seismic facies characteristics and fine characterization of single well. Through the detailed characterization of sedimentary facies distribution characteristics, the reservoirs are divided into three categories, among which the reservoir formed by traction flow depositional sand bodies in fan delta front is the best, while those formed by nearshore accumulation, debris flow and torrent originated sand bodies in the front root are the worst. The results may provide a basis for further exploration and development of the study area.
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表 1 岩相分类表
Table 1. Classification of lithofacies
岩类 岩相 代号 沉积特征 成因解释 砾岩 杂基-颗粒支撑块状中砾岩 G1 块状构造，砾石杂乱分布可见粗砾级砾石 砾质碎屑流 杂基支撑叠瓦状中砾岩 G2 无明显层理，砾石呈叠瓦状，部分具反递变特征 牵引流 杂基-颗粒支撑交错层理中细砾岩 G3 大型交错层理，砾石呈叠瓦状 牵引流 颗粒支撑块状中细砾岩 G4 块状构造，砾石杂乱分布 砾质碎屑流 杂基支撑块状中细砾岩 G5 块状构造，砾石杂乱分布 砾质碎屑流 杂基支撑反递变中细砾岩 G6 反递变层理，砾石杂乱分布 高密度浊流 杂基支撑正递变中细砾岩 G7 正递变层理，砾石呈杂乱状 高密度浊流 平行层理细砾岩 G8 发育平行层理，砾石定向排列 牵引流 叠瓦状细砾岩 G9 细砾岩，内部砾石沿层面呈叠瓦状排列 牵引流 含砾砂岩 块状含砾砂岩 B1 块状构造，砾石杂乱分布 砂质碎屑流 正递变含砾砂岩 B2 正递变层理 牵引流浊流 叠瓦状含砾砂岩 B3 砂岩内部砾石沿层面呈叠瓦状排列 牵引流 砂岩 块状粗砂岩 S1 块状构造 砂质碎屑流 平行层理中砂岩 S2 平行层理，见泥质纹层 牵引流 交错层理细砂岩 S3 交错层理，见泥质纹层 牵引流 块状细砂岩 S4 块状构造，分选较好 砂质碎屑流 含透镜状漂砾块状细砂岩（泥质） S5 整体块状构造，含漂砾块，泥质丰富 泥质碎屑流 泄水构造粉细砂岩 S6 泄水构造、震积构造 滑塌 变形层理粉细砂岩 S7 包卷层理、揉皱层理 滑塌 交错层理粉细砂岩 S8 交错层理，可见反韵律 滑动 波纹交错层理粉细砂岩 S9 小型交错层理，夹泥质纹层 浊流 块状粉砂岩 S10 块状层理 砂质碎屑流 正递变粉细砂岩 S11 正递变层理 浊流 泥质条带粉砂岩 S12 泥质条带呈包卷层理冲进砂层 浊流 粉砂泥岩 断续水平层理暗色粉砂质泥岩 M1 水平层理，富植物碎片 浊流/原地沉降 块状暗色粉砂质泥岩 M2 块状构造，富植物碎片 羽流/原地沉降 含漂砾粉砂质泥岩 M3 暗色泥岩夹断续毫米级薄砂层，富植物碎片 羽流/原地沉降 
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表 2 交力格地区原始数据表
Table 2. Primary data of Jiaolige area
井号 岩相 渗透率/10-3 μm2 孔隙度/% 深度/m 平均孔隙半径/μm 均质系数 特征结构系数(1/Dϕ) 变异系数 碳酸盐胶结含量/% 泥质含量/% 交38 平行层理细砂岩 2.91 13.036 1 838.0 4.410 0.260 204.5 0.13 10.9 6.9 交38 块状细(粉)砂岩 1.97 3.786 1 920.5 2.461 0.209 106.2 0.34 33.6 14.8 交38 杂基支撑块状砾岩 0.68 1.813 2 107.0 1.551 0.154 2.2 0.53 15.9 34.06 交47 碎屑流水道砂 1.59 5.211 2 220.0 4.039 0.201 61.0 0.24 24.6 17.65 交47 杂基支撑块状砾岩 0.79 2.120 2 277.5 2.924 0.124 15.6 0.65 28.5 30.64 交47 平行层理细砂岩 4.24 11.245 2 120.0 5.945 0.321 158.3 0.09 19.6 9.6 陆参2 杂基支撑块状砾岩 1.90 4.690 2 224.8 2.620 0.198 153.6 0.32 15 24.11 陆参2 平行层理细砂岩 4.12 12.351 2 050.0 3.551 0.298 185.5 0.18 20.4 5.20 陆参2 杂基支撑块状砾岩 0.79 1.780 2 250.0 1.551 0.134 52.3 0.56 20.5 30.24 交34 杂基支撑块状砾岩 0.48 2.230 2 350.0 1.863 0.103 12.5 0.57 18.6 29.63 交34 碎屑流水道砂 2.12 5.417 2 275.0 3.243 0.203 87.3 0.25 19.6 21.45 交34 交错层理细砂岩 3.94 11.236 2 252.2 5.425 0.258 145.5 0.17 25.8 9.36 交49 平行层理细砂岩 3.98 9.896 2 707.0 4.285 0.293 187.7 0.21 19.8 7.24 交49 远端席状砂 2.31 4.459 2 553.0 2.678 0.198 87.6 0.22 18.9 15.60 交49 杂基支撑块状砾岩 0.79 1.983 2 496.7 1.558 0.115 12.4 0.46 12.3 37.20
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表 3 交力格地区有利储层砂体定量评价标准
Table 3. Quantitative evaluation criteria of favorable reservoir sand bodies in Jiaolige area
综合评价因子（RQI） 等级划分 ＞0.6 Ⅰ类有利储集相带 0.4~0.6 Ⅱ类有利储集相带 ＜0.4 Ⅲ类不利储集相带
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[1] 李瑛. 陆东凹陷交力格地区成藏规律综合研究[D]. 荆州: 长江大学, 2017.
Li Y. Comprehensive study of accumulation regularity in Ludong sag of Jiaolige area[D]. Jingzhou: Yangtze University, 2017.
[2] 苍正毅. 开鲁盆地陆东凹陷交力格地区九佛堂组精细构造解释及沉积相研究[D]. 大庆: 东北石油大学, 2017.
Cang Z Y. The Research of fine structure interpretation and sedimentary facies of Jiufotang Formation in Jiaolige area in Ludong sag, Kailu basin[D]. Daqing: Northeast Petroleum University, 2017.
[3] 刘明洁, 谢庆宾, 谭欣雨, 等. 内蒙古开鲁盆地陆东凹陷九佛堂组层序地层格架与岩性圈闭[J]. 沉积与特提斯地质, 2014, 34(3): 31-37. https://www.cnki.com.cn/Article/CJFDTOTAL-TTSD201403004.htm
Liu M J, Xie Q B, Tan X Y, et al. Sequence stratigraphic framework and lithologic traps in the Jiufotang Formation, Ludong depression, Kailu basin, Inner Mongolia[J]. Sedimentary Geology and Tethyan Geology, 2014, 34(3): 31-37. https://www.cnki.com.cn/Article/CJFDTOTAL-TTSD201403004.htm
[4] 裴家学. 路东凹陷九上段沉积体系及储层研究[D]. 大庆: 东北石油大学, 2013.
Pei J X. The study of Jf1 sedimentary system and reservoir in Ludong depression[D]. Daqing: Northeast Petroleum University, 2013.
[5] 刘明洁, 谢庆宾, 刘震, 等. 内蒙古开鲁盆地陆东凹陷下白垩统九佛堂组-沙海组层序地层格架及沉积相预测[J]. 古地理学报, 2012, 14(6): 733-746. https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201206009.htm
Liu M J, Xie Q B, Liu Z, et al. Sequence stratigraphic framework and sedimentary facies prediction of the Jiufotang and Shahai formations of Lower Cretaceous in Ludong Sag, Kailu Basin, Inner Mongolia[J]. Journal of Palaeogeography, 2012, 14(6): 733-746. https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201206009.htm
[6] 潘尚文. 陆东凹陷前后河地区油藏特征及分布规律研究[J]. 石油天然气学报, 2008, 30(6): 171-175. https://www.cnki.com.cn/Article/CJFDTOTAL-JHSX200806041.htm
Pan S W. Study on reservoir characteristics and distribution law in Qianqianhe area of Ludong sag[J]. Journal of Petroleum and Natural Gas, 2008, 30(6): 171-175. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-JHSX200806041.htm
[7] 吴炳伟, 郭彦民, 王新, 等. 辽宁阜新盆地油气勘探方向[J]. 地质与资源, 2015, 24(5): 473-477. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract8775.shtml
Wu B W, Guo Y M, Wang X, et al. The oil-gas exploration direction of Fuxin Basin[J]. Geology and Resources, 2015, 24(5): 473-477. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract8775.shtml
[8] 赵洪伟, 张德军. 阜新改造型盆地油气评价及勘探方向[J]. 地质与资源, 2021, 30(3): 306-316. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10299.shtml
Zhao H W, Zhang D J. Hydrocarbon evaluation and exploration direction of Fuxin reformed basin[J]. Geology and Resources, 2021, 30(3): 306-316. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10299.shtml
[9] 汪孝敬, 李维锋, 董宏, 等. 砂砾岩岩相成因分类及扇三角洲沉积特征——以准噶尔盆地西北缘克拉玛依油田五八区上乌尔禾组为例[J]. 新疆石油地质, 2017, 38(5): 537-543. https://www.cnki.com.cn/Article/CJFDTOTAL-XJSD201705007.htm
Wang X J, Li W F, Dong H, et al. Genetic classification of sandy conglomerate facies and sedimentary characteristics of fan delta: A case study from Upper Wuerhe Formation in District Wuba in northwestern margin of Junggar Basin[J]. Xinjiang Petroleum Geology, 2017, 38(5): 537-543. https://www.cnki.com.cn/Article/CJFDTOTAL-XJSD201705007.htm
[10] 邢恩浩, 田景春, 林小兵, 等. 东营凹陷胜坨地区沙四上亚段浊积扇致密砂砾岩储层孔隙演化[J]. 东北石油大学学报, 2019, 43(4): 29-39, 77. https://www.cnki.com.cn/Article/CJFDTOTAL-DQSY201904003.htm
Xing E H, Tian J C, Lin X B, et al. Porosity evolution of turbidite fan tight glutenite reservoir in Es4s of Shengtuo area, Dongying depression[J]. Journal of Northeast Petroleum University, 2019, 43(4): 29-39, 77. https://www.cnki.com.cn/Article/CJFDTOTAL-DQSY201904003.htm
[11] 韩冰, 李勇, 吕建荣. 黄骅坳陷孔南地区孔二段沉积体系[J]. 特种油气藏, 2011, 18(5): 67-70. https://www.cnki.com.cn/Article/CJFDTOTAL-TZCZ201105018.htm
Han B, Li Y, Lv J R. Sedimentary system in the 2nd Member of the Kongdian Formation in the Kongnan area, Huanghua depression[J]. Special Oil & Gas Reservoirs, 2011, 18(5): 67-70. https://www.cnki.com.cn/Article/CJFDTOTAL-TZCZ201105018.htm
[12] 徐增连, 李建国, 朱强, 等. 开鲁盆地钱家店凹陷早白垩世义县组孢粉组合及其古气候演变[J]. 中国地质, 2021, 48(6): 1924-1934. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI202106016.htm
Xu Z L, Li J G, Zhu Q, et al. Early Cretaceous spore and pollen assemblage from the Yixian Formation in the Qianjiadian Depression of Kailu Basin and its paleoclimate evolution[J]. Geology in China, 2021, 48(6): 1924-1934. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI202106016.htm
[13] 贾国振, 刘盛益, 吴广. 长岭断陷登娄库组地震相展布及纵向演化[J]. 内江科技, 2010, 31(3): 95, 85. https://www.cnki.com.cn/Article/CJFDTOTAL-KJNJ201003086.htm
Jia G Z, Liu S Y, Wu G. Seismic facies distribution and vertical evolution of Denglouku Formation in Changling fault depression[J]. Neijiang Science and Technology, 2010, 31(3): 95, 85. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-KJNJ201003086.htm
[14] 罗居德, 刘云华, 夏昭德, 等. 新疆昌吉南部侏罗系头屯河组物源与沉积环境分析[J]. 地质与资源, 2022, 31(4): 473-485. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10412.shtml
Luo J D, Liu Y H, Xia Z D, et al. Source and sedimentary environment of Jurassic Toutunhe Formation in southern Changji, Xinjiang[J]. Geology and Resources, 2022, 31(4): 473-485. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10412.shtml
[15] 张志垚, 张昌民, 侯国伟, 等. 东海盆地某凹陷P井区平湖组沉积微相及沉积模式[J]. 地质与资源, 2020, 29(2): 142-151, 160. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10185.shtml
Zhang Z Y, Zhang C M, Hou G W, et al. Microfacies distribution and sedimentary model of Pinghu Formation in P well area, East China Sea Basin[J]. Geology and Resources, 2020, 29(2): 142-151, 160. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10185.shtml
[16] 刘建平, 鲜本忠, 张莉, 等. 渤海湾盆地东营凹陷碎屑流主控型深水体系沉积过程及模式[J]. 中国地质, 2022, 49(6): 1951-1969. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI202206018.htm
Liu J P, Xian B Z, Zhang L, et al. Depositional process and model of debrite dominated deep-water system in the Dongying depression, Bohai Bay Basin[J]. Geology in China, 2022, 49(6): 1951-1969. https://www.cnki.com.cn/Article/CJFDTOTAL-DIZI202206018.htm
[17] 涂乙, 谢传礼, 刘超, 等. 灰色关联分析法在青东凹陷储层评价中的应用[J]. 天然气地球科学, 2012, 23(2): 381-386. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201202028.htm
Tu Y, Xie C L, Liu C, et al. Application of grey correlation analysis method in reservoir evaluation of Qingdong Sag[J]. Natural Gas Geoscience, 2012, 23(2): 381-386. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201202028.htm
[18] 胡求红, 张昌民, 侯国伟, 等. 马尔科夫链分析在东海陆架盆地花港组沉积微相分析中的应用[J]. 地质与资源, 2020, 29(1): 7-20. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10144.shtml
Hu Q H, Zhang C M, Hou G W, et al. Application of Markov chain analysis in the microfacies recognition of Huagang Formation in the East China Sea shelf basin[J]. Geology and Resources, 2020, 29(1): 7-20. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10144.shtml
[19] 宋兵, 王波, 刘兴周, 等. 辽河西部凹陷曙北地区沙四段薄砂层成因类型及分布规律[J]. 地质与资源, 2021, 30(6): 698-706. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10351.shtml
Song B, Wang B, Liu X Z, et al. Genetic types and distribution rules of thin sand layers in the Fourth Member of Shahejie Formation in Shubei area of the western sag, Liaohe Depression[J]. Geology and Resources, 2021, 30(6): 698-706. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract10351.shtml
[20] 袁勇. 东胜气田锦58井区盒1沉积相描述及储层分类评价[J]. 中国石油石化, 2017(9): 32-33. https://www.cnki.com.cn/Article/CJFDTOTAL-SHZG201709021.htm
Yuan Y. Description of H1 sedimentary facies and classification evaluation of reservoir in J58 well block of Dongsheng gas field[J]. China Petrochem, 2017(9): 32-33. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-SHZG201709021.htm
[21] 张代燕, 孔垂显, 孟祥超, 等. 玛北斜坡区百口泉组扇三角洲储层特征[J]. 新疆地质, 2016, 34(2): 250-256. https://www.cnki.com.cn/Article/CJFDTOTAL-XJDI201602018.htm
Zhang D Y, Kong C X, Meng X C, et al. The differences of reservoir quality and lithofacies of fan delta in Baikouquan Formation, the Mabei slope area of Junggar Basin[J]. Xinjiang Geology, 2016, 34(2): 250-256. https://www.cnki.com.cn/Article/CJFDTOTAL-XJDI201602018.htm
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