基于砂地比的复合河道沉积期次空间解析方法——以鄂尔多斯盆地苏里格气田ST密井网试验区盒8下(2)为例

doi:10.11743/ogg20190519

摘要/Abstract

摘要： 在对鄂尔多斯盆地苏里格气田储层精细描述研究过程中，经常遇到井间砂体尖灭位置无法判定的情况，这对砂体规模定量表征带来很大困难。为此，在精细综合地质研究基础上，形成了一套快速、定量确定单期河道边界尖灭位置的方法，利用砂地比确定不同期数河道叠置范围，并在此平面约束下，分析剖面位置多期河道组合情况，进而刻画复合河道在三维空间的展布特征。以苏里格气田ST区块密井网试验区二叠系中统下石盒子组盒8^下（2）小层为应用实例，结果表明：①小层细分为n个基本等厚的单层，i期叠置区域砂地比范围为（i-1）/n~i/n；②河道下切侵蚀、河道边缘砂体厚度变薄，可能造成局部解释叠置区域偏差，应对该区域进行适当调整，但不影响方法的整体适用性。该方法能够快速确定各单层河道空间展布范围，为储层定量表征和有利区预测提供技术支撑。

关键词: 砂地比, 空间解析, 沉积期次, 叠置区域, 单层, 复合河道, 盒8下, 苏里格气田

Abstract: Problems including the difficulty to determine the pinch-out location of cross-well sand bodies in the fine description of reservoir in Sulige gas field,Ordos Basin,usually bring great challenges for the quantitative characterization of sand body scale.To solve these problems,a method which may be applied to determine the pinch-out position of the single period channel in a rapid and quantitative manner,has been established following the fine,comprehensive geological research.That is,the sand-stratum ratio is applied to demarcate the scope of superimposing channels of different stages; under the planar constraints,we analyzed the multistage channel assemblage on the section position,and then described the distribution characteristics of composite channels in the three-dimensional space.A case study of the 2rd submember of the lower 8th member of Shihezi Formation in the infilled pattern test area of Block ST,Sulige gas field,has shown that:① a small-scale layer may be divided into n monolayers of almost equal thickness,and the sand-stratum ratio at the stage i ranges between (i-1)/n and i/n in the superimposing area;② due to the down-cutting of channels and the thinning of sand bodies on river edge,there may be partial deviations in the interpretation of superimposing area,but this does not affect the overall applicability of the methods,and appropriate adjustments to the area are necessary.It is concluded that the method proposed in the study can be applied to immediately identify the spatial distribution range of monolayer channels,and provide technical support for the quantitative characterization of reservoir and prediction of play fairway.

Key words: sand-stratum ratio, spatial analysis, sedimentary stage, area of superimposing sand bodies, monolayer, composite channel, the lower 8th member of Shihezi Formation, Sulige gas field

中图分类号:

TE121.3

王文胜,兰义飞,史红然,等. 基于砂地比的复合河道沉积期次空间解析方法——以鄂尔多斯盆地苏里格气田ST密井网试验区盒8^下(2)为例[J]. 石油与天然气地质, 2019, 40(5): 1135-1140. doi: 10.11743/ogg20190519 Wang Wensheng,Lan Yifei,Shi Hongran,et al. Spatial analysis of the sedimentary stages for composite channels based on sand-stratum ratio: A case study of the 2rd submember of the lower 8th member of Shihezi Formation in the infilled pattern test area of Block ST,Sulige gas field,Ordos Basin[J]. Oil & Gas Geology, 2019, 40(5): 1135-1140. doi: 10.11743/ogg20190519

参考文献

[1] 吴胜和,岳大力,刘建民,等.地下古河道储层构型的层次建模研究[J].中国科学D辑:地球科学,2008,38(增刊1):111-121. Wu Shenghe,Yue Dali,Liu Jianmin,et al.Level modeling research of reservoir architecture for underground ancient channel[J].Scientia Sinica Terrae,2008,38(S1):111-121.
[2] 周银邦,吴胜和,岳大力,等.复合分流河道砂体内部单河道划分[J].油气地质与采收率,2010,17(2):4-8. Zhou Yinbang,Wu Shenghe,Yue Dali,et al.Identification of single channel in compound distributary sand body[J].Petroleum Geology and Recovery Efficiency,2010,17(2):4-8.
[3] Miall AD.Architectural-element analysis:A new method of facies analysis applied to fluvial deposits[J].Earth-Science Reviews,1985,22(2):261-308.
[4] 吴春英,韩会平,康锐,等.鄂尔多斯盆地苏里格南部地区盒8段沉积相特征及其意义[J].地球科学与环境学报,2014,36(4):77-86. Wu Chunying,Han Huiping,Kang Rui,et al.Characteristics and significance of sedimentary facies in He 8 Member in the southern Sulige Area of Ordos Basin[J].Journal of Earth Science and Environment,2014,36(4):77-86.
[5] 金振奎,杨有星,尚建林,等.辫状河砂体构型及定量参数研究——以阜康-柳林和延安地区辫状河露头为例[J].天然气地球科学,2014,25(3):311-317. Jin Zhengkui,Yang Youxing,Shang Jianlin,et al.Sandbody architecture and quantitative parameters of single channel sandbodies of braided River:Cases from outcrops of braided river in Fukang,Liulin and Yanan areas[J].Natural Gas Geoscience,2014,25(3):311-317.
[6] 廖保方,张为民,李列,等.辫状河现代沉积研究与相模式:中国永定河剖析[J].沉积学报,1998,16(1):34-40. Liao Baofang,Zhang Weimin,Li Lie,et al.Study on modern deposit of braided stream and facies model:Taking the Yongding River as example[J].Acta Sedimentological Sinica,1998,16(1):34-40.
[7] 单敬福,李占东,李浮萍,等.一种厘定复合辫状河道砂体期次的方法[J].天然气工业,2015,35(5):8-14. Shan Jinfu,Li Zhandong,Li Fuping,et al.A new method for determining the phases of composite braided river channel sand bodies[J].Natural Gas Industry,2015,35(5):8-14.
[8] 单敬福,张彬,赵忠军,等.复合辫状河道期次划分方法与沉积演化过程分析:以鄂尔多斯盆地苏里格气田西区苏X区块为例[J].沉积学报,2015,33(4):773-785. Shan Jingfu,Zhang Bin,Zhao Zhongjun,et al.Single stage and sedimentary evolution process analysis of braided river:a case from SuX block of western Sulige gas field in Ordos Basin[J].Acta Sedimentologica Sinica,2015,33(4):773-785.
[9] 单敬福,张彬,赵忠军,等.厚层辫状河道期次厘定与多期砂体叠置规律[J].中南大学学报:自然科学版,2015,46(10):3789-3800. Shan Jingfu,Zhang Bin,Zhao Zhongjun,et al.Stacked rule and stage-time division for thick-layer,multi-period braided river sandbodies[J].Journal of Central South University(Science and Technology),2015,46(10):3789-3800.
[10] 刘钰铭,侯加根,王连敏,等.辫状河储层构型分析[J].中国石油大学学报(自然科学版),2009,33(1):7-11. Liu Yuming,Hou Jiagen,Wang Lianmin,et al.Architecture analysis of braided river reservoir[J].Journal of the china University of Petroleum:Edition of Natural Science,2009,33(1):7-11.
[11] 刘钰铭,李园园,张友,等.喇嘛甸油田密井网砂质辫状河厚砂层单砂体识别[J].断块油气田,2011,18(5):556-559. Liu Yuming,Li Yuanyuan,Zhang You,et al.Identification of single sand body in thick sand layer of braided river under the condition of dense well pattern in Lamadian Oilfield[J].Fault-Block Oil and Gas Field,2011,18(5):556-559.
[12] 薛欣宇,刘宗堡,张云峰,等.三角洲外前缘亚相储层井间连通性定量评价——以大庆长垣萨尔图油田南二区东部为例[J].石油学报,2017,38(11):1275-1283. Xue Yuxin,Liu Zongbao,Zhang Yunfeng,et al.Quantitative evaluation on the interwell connectivity of reservoirs in delta outer-front subfacies:A case study of eastern Nan'er block,Saertu oilfield,Daqing placanticline[J].Acta Petrolei Sinica,2017,38(11):1275-1283.
[13] 夏竹,李中超,贾瑞忠,等.井震联合薄储层沉积微相表征实例研究[J].石油地球物理勘探,2016,51(5):1002-1011. Xia Zhu,Li Zhongchao,Jia Ruizhong,et al.Thin reservoir sedimentary microfacies characterization based on well logging and seismic data:a case study[J].Oil Geophysical Prospecting,2016,51(5):1002-1011.
[14] 常少英,张先龙,刘永福,等.薄层砂体识别的地震沉积学研究——以TZ12井区为例[J].岩性油气藏,2015,27(6):72-77. Chang Shaoying,Zhang Xianlong,Liu Yongfu,et al.Seismic sedimentology for thin sand body identification:A case study from TZ12 well block[J].Lithologic Reservoirs,2015,27(6):72-77.
[15] 马立驰.地球物理技术在河道砂岩中的应用及问题探讨——以济阳坳陷新近系为例[J].特种油气藏,2013,20(3):23-26. Ma Lichi.Application and discussion of geophysical technology in river sandstone:A case of Neogene in Jiyang Depression[J].Special Oil and Gas Reservoirs,2013,20(3):23-26.
[16] 陈珊.薄储层的地震表征方法[J].地质论评,2017,63(b04):111-112. Chen Shan.Seismic characterization method of thin reservoirs[J].Geological Review,2017,63(b04):111-112.
[17] 赵杰,付晨东,王艳,等.综合成像测井和常规测井资料计算致密油薄互层砂地比[J].测井技术,2017,41(5):583-589. Zhao Jie,Fu Chendong,Wang Yan,et al.Comprehensive application of imaging and conventional logging data to calculate NTG of thin interbed of tight oil reservoir[J].Well Logging Technology,2017,41(5):583-589.
[18] 李进步,付斌,赵忠军,等.苏里格气田致密砂岩气藏储层表征技术及其发展展望[J].天然气工业,2015,35(12):35-41. Li Jinbu,Fu Bin,Zhao Zhongjun,et al.Characterization technology for tight sandstone gas reservoirs in the Sulige gas field,Ordos Basin,and its development prospect[J].Natural Gas Industry,2015,35(12):35-41.
[19] 马志欣,付斌,王文胜,等.基于层次分析的辫状河储层水平井地质导向策略[J].天然气地球科学,2016,27(8):1380-1387. Ma Zhixin,Fu Bin,Wang Wensheng,et al.Horizontal geosteering strategies in braided river reservoir based on hierarchical analysis[J].Natural Gas Geoscience,2016,27(8):1380-1387.
[20] 罗超,贾爱林,郭建林,等.苏里格气田有效储层解析与水平井长度优化[J].天然气工业,2016,36(3):41-48. Luo Chao,Jia Ailin,Guo Jianlin,et al.Analysis on effective reservoirs and length optimization of horizontal wells in the Sulige Gasfield[J].Natural Gas Industry,2016,36(3):41-48.
[21] 张吉,马志欣,王文胜,等.辫状河储层构型单元解剖及有效砂体分布规律[J].特种油气藏,2017,24(2):1-5. Zhang Ji,Ma Zhixin,Wang Wensheng,et al.Dissection of structural units of braided river reservoirs and distribution of effective sandstone formations[J].Special Oil and Gas Reservoirs,2017,24(2):1-5.

基于砂地比的复合河道沉积期次空间解析方法——以鄂尔多斯盆地苏里格气田ST密井网试验区盒8^下(2)为例

Spatial analysis of the sedimentary stages for composite channels based on sand-stratum ratio: A case study of the 2rd submember of the lower 8th member of Shihezi Formation in the infilled pattern test area of Block ST,Sulige gas field,Ordos Basin

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

[1]	李进步, 李娅, 张吉, 杨特波, 樊爱萍, 杨仁超, 崔明明. 苏里格气田西南部致密砂岩气藏资源评价方法及评价参数的影响因素[J]. 石油与天然气地质, 2020, 41(4): 730-743, 762.
[2]	魏新善, 陈娟萍, 吕奇奇, 赵小会, 贾亚妮. 白云岩与砂岩致密储集体质量的差异性[J]. 石油与天然气地质, 2019, 40(2): 294-301.
[3]	王国亭, 贾爱林, 闫海军, 郭智, 孟德伟, 程立华. 苏里格致密砂岩气田潜力储层特征及可动用性评价[J]. 石油与天然气地质, 2017, 38(5): 896-904.
[4]	朱兆群, 林承焰, 张苏杰, 任丽华, 赵剑轩, 陈仕臻, 贾萧蓬, 陈莉, 张吉. 改进的模糊-灰色综合评判方法在储层定量评价中的应用——以苏里格气田苏X井区盒8下亚段低渗透气藏为例[J]. 石油与天然气地质, 2017, 38(1): 197-208.
[5]	郭智, 贾爱林, 何东博, 唐海发, 刘群明. 鄂尔多斯盆地苏里格气田辫状河体系带特征[J]. 石油与天然气地质, 2016, 37(2): 197-204.
[6]	梁积伟, 李荣西, 陈玉良. 鄂尔多斯盆地苏里格气田西部盒8段地层水地球化学特征及成因[J]. 石油与天然气地质, 2013, 34(5): 625-630.
[7]	孙永河, 赵博, 董月霞, 郑晓凤, 胡明. 南堡凹陷断裂对油气运聚成藏的控制作用[J]. 石油与天然气地质, 2013, 34(4): 540-549.
[8]	唐钦锡. 水平井地质导向技术在苏里格气田开发中的应用——以苏10和苏53区块为例[J]. 石油与天然气地质, 2013, 34(3): 388-393.
[9]	何江, 付永雷, 沈桂川, 朱晓燕, 伍启林. 低渗砂岩储层岩石学特征与应力敏感性耦合关系——以鄂尔多斯盆地苏里格-吉尔地区下石盒子组八段下亚段为例[J]. 石油与天然气地质, 2012, 33(6): 923-931.
[10]	李明瑞, 张清, 段宏臻, 邓杰. 苏里格气田上古生界主要含气层系粘土矿物分布及其主控因素[J]. 石油与天然气地质, 2012, 33(5): 743-750.
[11]	王晓梅, 赵靖舟, 刘新社, 范立勇. 苏里格气田西区致密砂岩储层地层水分布特征[J]. 石油与天然气地质, 2012, 33(5): 802-810.
[12]	张海涛, 时卓, 石玉江, 王亮亮, 贺陆军. 低渗透致密砂岩储层成岩相类型及测井识别方法——以鄂尔多斯盆地苏里格气田下石盒子组8段为例[J]. 石油与天然气地质, 2012, 33(2): 256-264.
[13]	张顺，崔坤宁，张晨晨，金明玉. 松辽盆地泉头组三、四段河流相储层岩性油藏控制因素及分布规律[J]. 石油与天然气地质, 2011, 32(3): 411-419.
[14]	叶成林，王国勇，何凯,徐中波. 苏里格气田储层宏观非均质性 ——以苏53区块石盒子组8段和山西组1段为例[J]. 石油与天然气地质, 2011, 32(2): 236-244.
[15]	陈义才，林杭杰，唐波，赵鹤森，魏新善，刘新社，赵惠涛. 苏里格地区石炭-二叠系天然气充注特点及充注能力[J]. 石油与天然气地质, 2011, 32(1): 91-97.