Sedimentary Microfacies of Chang 6 Oil-Bearing Formation and Its Control on Reservoir in Wuqi Oilfield, Ordos Basin
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摘要: 重新认识注水开发中后期油藏的沉积微相和砂体展布特征对精准定位剩余油、调整开发井网和提高水驱采收率具有重要意义。在综合运用岩心观察、薄片鉴定和测井分析的基础上，对吴起油田延长组长6油层组的沉积微相进行了精细研究，明确了研究区长6油层组属于三角洲前缘亚相沉积，发育有水下分流河道、分流间湾和河道侧翼3种沉积微相。通过选取10个储层特征参数，对目标区储层进行了分类评价，并绘制出各小层沉积微相平面图和储层分类评价图，定量评价了长6油层组沉积微相对储层的控制作用。结果表明，长6油层组中长61与长62继承性较好，其水下分流河道砂体整体发育程度最好，油气主要赋存于长61和长62的水下分流河道砂体及水下分流河道与河道侧翼的组合砂体之中。长6储层孔隙结构类型可划分为3类，Ⅰ、Ⅱ类储层主要发育在水下分流河道微相上，孔隙结构参数较好-中等，是未来挖潜的主要方向。Ⅲ类储层最为致密，孔隙结构参数差，开发价值较低。长61和长62中三类储层发育程度最高，且Ⅰ类和Ⅱ类储层的分布数量和分布规模最大。根据各小层的储层分类评价图，为精准定位剩余油、调整挖潜方案提供了依据。Abstract: It is of great significance to re-recognize the characteristics of the sedimentary microfacies and sand body distribution in the middle and late stage of waterflood development for accurately locating remaining oil, adjusting development well pattern and improving water drive recovery. The authors studied in details the sedimentary microfacies of Chang 6 reservoir in Wuqi oilfield based on the core observation, thin section identification and well logging analysis. It is made clear that Chang 6 oil-bearing formation in the study area belongs to delta front subfacies and three sedimentary microfacies, namely underwater distributary channel, distributary Bay and channel flank. The authors classified the reservoir in the study area using 10 selected influencing parameters and drew out the plan of sedimentary microfacies and the map of reservoir classification, thus quantitatively evaluated the controlling effect of sedimentary microfacies on the reservoir. The results show that the Chang 61 and Chang 62 have good inheritance, and the underwater distributary channel of sand body is well developed. The oil and gas are mainly concentrated in the sand body of Chang 61 and Chang 62 underwater distributary channel and the combined sand body of underwater distributary channel and channel flank. The pore structure types of Chang 6 reservoir can be divided into three types. Type I and Ⅱ are mainly developed in the microfacies of underwater distributary channel, the pore structure parameters being preferable to developing in the future. Type Ⅲ is the most compact with poor structure parameters and low development value. The above three types in Chang 61 and Chang 62are well-developed, among which type I and type Ⅱ reservoirs are the largest in distribution quantity and scale. The reservoir classification and evaluation map of each small layer provide a basis for accurate positioning of remaining oil and the adjustment of potential exploration plan.
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郭彦如, 刘俊榜, 杨华, 等. 鄂尔多斯盆地延长组低渗透致密岩性油藏成藏机理[J]. 石油勘探与开发, 2012, 39(4):417-425. GUO Yanru, LIU Junbang, YANG Hua, et al. Hydrocarbon accumulation mechanism of low permeable tight lithologic oil reservoirs in the Yanchang Formation, Ordos Basin, China[J]. Petroleum Exploration and Development, 2012, 39(4):417-425.
刘翰林,杨友运,王凤琴,等. 致密砂岩储集层微观结构特征及成因分析——以鄂尔多斯盆地陇东地区长6段和长8段为例[J]. 石油勘探与开发,2018,45(2):225-231. LIU Hanlin, YAN Youyun, WANG Fengqin, et al. Micro pore and throat characteristics and origin of tight sandstone reservoirs:A case study of the Triassic Chang 6 and Chang 8 members in Longdong area, Ordos Basin, NW China[J]. Petroleum Exploration and Development, 2018,45(2):225-231.
魏笑笑,刘建朝,刘晶晶. 鄂尔多斯盆地史家畔地区长61油层沉积微相研究及其对开发的影响[J]. 西北地质,2018,51(4):255-261. WEI Xiaoxiao, LIU Jianchao, LIU Jingjing. Study on sedimentary microfacies and impact on development of Chang 61 reservoir in Shijiapan Area, Ordos Basin[J]. Northwestern Geology, 2018,51(4):255-261.
黄振凯,郝运轻,李双建,等. 鄂尔多斯盆地长7段泥页岩层系含油气性与页岩油可动性评价——以H317井为例[J]. 中国地质, 2020, 47(1):210-219. HUANG Zhenkai,HAO Yunqing,LI Shuangjian,et al. Oil-bearing potential, mobility evaluation and significance of shale oil in Chang 7 shale system in the Ordos Basin:A case study of well H317[J]. Geology in China, 2020, 47(1):210-219(in Chinese with English abstract).
胡春花,屈红军,苗建宇,等. 南泥湾长6油层组沉积微相及含油性研究[J]. 西北大学学报(自然科学版),2008,38(6):994-1002. HU Chunhua, QU Hongjun, MIAO Jianyu. et al. A study on sedimentary microfacies and oil-bearing possibility in Chang 6 oil-bearing formation in the area of Nanniwan[J]. Journal of Northwest University (Natural Science Edition), 2008,38(6):994-1002.
刘春燕,王毅,胡宗全,等. 鄂尔多斯盆地富县地区延长组沉积特征及物性分析[J]. 世界地质,2009,28(4):491-497. LIU Chunyan. WANG Yi. HU Zongquan. et al. Depositional features and properties analysis of Yanchang Formation in Fuxian area, Ordos Basin[J]. Global Geology, 2009,28(4):491-497.
公繁浩,鲍志东,刘丽,等. 鄂尔多斯盆地吴起地区长6油层组沉积微相特征[J]. 世界地质,2010,29(4):614-619. GONG Fanhao, BAO Zhidong, LIU Li, et al. Sedimentary microfacies characteristics of Chang 6 oil-bearing formation in Jiyuan area of Ordos Basin[J]. Global Geology, 2010,29(4):614-619.
郑荣才,王海红,韩永林,等. 鄂尔多斯盆地吴起地区长6段沉积相特征和砂体展布[J]. 岩性油气藏,2008,20(3):21-26. ZHENG Rongcai. WANG Haihong. HAN Yonglin. et al. Sedimentary facies characteristics and sandbody distribution of Chang6 member in Jiyuan area of Ordos Basin[J]. Lithology Reservoir, 2008,20(3):21-26.
马强,屈红军,严耀祖,等. 鄂尔多斯盆地伊陕斜坡中部长6油层组沉积微相及其含油性研究[J]. 沉积学报,2009,27(3):443-448. MA Qiang. QU Hongjun. YAN Yaozu. et al. Study on sedimentary microfacies and its oil-bearing properties in Chang 6 member in the middle part of Yi-Shan Slop in Ordos Basin[J]. Acta Sedmentologica Sinica, 2009,27(3):443-448.
杨华,李士祥,刘显阳. 鄂尔多斯盆地致密油、页岩油特征及资源潜力[J]. 石油学报,2013,34(1):1-11. YANG Hua, LI Shixiang, LIU Xianyang. Characteristics and resource prospects of tight oil and shale oil in Ordos Basin[J]. Acta Petrolei Sinica, 2013,34(1):1-11.
师清高,龚建涛,秦志成,等. 延长油田三叠系长8、长6油层组沉积特征及储集性能[J]. 大庆石油地质与开发,2015,34(1):36-42. SHI Qinggao, GONG Jiantao, QIN Zhicheng, et al. Sedimentary characteristics and reservoir properties of Triassic oil groups Chang 8 and Chang 6 in Yanchang Oilfield[J]. Petroleum Geology and Oilfield Development in Daqing, 2015,34(1):36-42.
刘秉晞,贺志亮,陈宇,等. 鄂尔多斯盆地甘谷驿油田唐157井区长6油层组沉积相研究[J]. 西安石油大学学报(自然科学版),2016,31(4):44-50. LIU Bingxi, HE Zhiliang, CHEN Yu, et al. Study on sedimentary facies of Chang 6 oil-bearing strata in 157 well-block of Ganguyi Oilfield in Ordos Basin[J]. Journal of Xi' an Shiyou University (Natural Science Edition), 2016,31(4):44-50.
雷启鸿, 高琼瑶, 成良丙, 等. 鄂尔多斯盆地马岭地区长 8 油层组物源及沉积展布特征[J]. 岩性油气藏,2015, 27(2):70-76. LEI Qihong, GAO Qiongyao, CHENG Liangbing, et al. Provenance and sedimentary facies evaluation of Chang 8 oil reservoir set in Maling area, Ordos Basin[J]. Lithologic Reservoirs, 2015, 27(2):70-76.
于波. 鄂尔多斯东南部上古生界层序地层特征[J].西北地质,2016,49(1):92-100. YU Bo. Characteristic of upper Paleozoic sequence Stratigraphy in East-southern Ordos Basin[J]. Northwestern Geology, 2016,49(1):92-100.
雷卞军,李跃刚,李浮萍,等. 鄂尔多斯盆地苏里格中部水平井开发区盒8段沉积微相和砂体展布[J]. 古地理学报,2015,17(1):91-98. LEI Bianjun, LI Yuegang, LI Fuping, et al. Sedimentary and sandbody distribution of the Member 8 of Xiashihezi Formation in horizontal well zone, central Sulige area, Ordos Basin[J]. Journal of Palaeogeography (Chinese Edition), 2015,17(1):91-98.
付金华. 鄂尔多斯盆地上三叠统延长组长9油层组沉积相及其演化[J]. 古地理学报,2012,14(3):269-284. FU Jinhua. Sedimentary facies and its evolution of the Chang 9 interval of Upper Triassic Yanchang Formation in Ordos Basin[J]. Journal of Palaeogeography (Chinese Edition), 2012,14(3):269-284.
张亮,曹成,张鹏,等. 浊积岩储层孔隙结构分类及其测井相应特征-以鄂尔多斯盆地黄陵油田长6储层为例[J]. 地球物理学进展,2019,25(1):1-12. ZHANG Liang, CAO Cheng, ZHANG Peng, et al. Pore structure classification and logging response characteristics of Turbidite reservoir-A case study on Chang 6 reservoir of Huangling Oilfield in Ordos Basin[J]. Progress in Geophysics, 2019,25(1):1-12.
刘岫峰. 沉积岩实验室研究方法[M]. 北京:地质出版社,1991. LIU Xiufeng. The Research Methods of Sedimentary Rock in Laboratory. Beijing:Geology Press, 1991.
朱谨谨,符超峰,杨海龙,等. 鄂尔多斯盆地甘谷驿油区延长组长6储层综合评价[J].西北地质,2019,52(1):166-175. ZHU Jinjin, FU Chaofeng, YANG Longhai, et al. Comprehensive evaluation of Chang 6 reservoir from Yanchang formation in Ganguyi oil area, Ordos basin[J]. Northwestern Geology, 2019,52(1):166-175.
武富礼,李文厚,李玉宏,等. 鄂尔多斯盆地上三叠统延长组三角洲沉积及演化[J]. 古地理学报,2004,6(3):307-315. WU Fuli, LI Wenhou, LI Yuhong, et al. Delta sediments and evolution of the Yanchang formation of upper Triassic in Ordos Basin[J]. Journal of Palaeogeogphy, 2004,6(3):307-315.
范忠礼,张广雪,王广群,等. 卞东油田阜三段沉积微相及储层非均质性研究[J]. 科学技术与工程,2015,15(6):164-169. FAN Zhongli, ZHANG Guangxue, WANG Guangqun, et al. Sedimentary microfacies and heterogeneity of member 3 of Funing Formation of Biandong Oilfield[J]. Science Technology and Engineering, 2015,15(6):164-169.
GIBING M.R. Width and thickness of fluvial channel bodies and valley fills in the geological record:A literature compilation and classification[J]. Journal of Sedimentary Research, 2006, 76(3):731-770.
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