Application of high-resolution sequence stratigraphy framework in reservoir prediction:A case study of 2nd member of Shuangyang Formation in Moliqing Oilfield
-
摘要: 伊通盆地莫里青断陷具多物源、多期次走滑断陷盆地的特征,其断裂复杂,物源期次、储层展布认识不足。文章应用高分辨率层序地层学原理,岩-电-震相结合,通过对莫里青油田双阳组二段层序主要界面的识别与对比,首次将研究区双阳组二段划分为4个四级层序(对应基准面中期旋回)和13个基准面短期旋回,建立了莫里青油田高分辨率层序格架。结合粒度分析、地震属性和地震相分析等方法进行沉积微相划分,进而利用相控随机建模的方法,拟合开发程度较高的A、B区块的储层展布特征,选取最优模型,实现对开发程度较低的C、D区块进行储层预测的目的。该方法成功在莫里青油田C区块南部双二段预测出6个有利含油储层,实现储层定性分析向半定量、定量化分析的转变。Abstract: With multiple sources and multiple stages for strike-slip, the Moliqing Fault Basin has a complicated fracture pattern, and the source stage and reserve distribution still remain discussing. By means of high-resolution sequence stratigraphy, combining lithologic, electric and seismic data together, the 2nd member of the Shuangyang Formation in the Moliqing Oilfield has been divided into 4 4th-grade sequences (equivalent to mid-term base-level cycles) and 13 short-term base-level cycles. A high-resolution sequence stratigraphy framework of the MoliqingOilfield has been established. Grain size, seismic attribute and facies analyses have been applied to study sedimentary micro-facies. Using facies-constrained stochastic modeling method, the reservoir distributing features of high-exploitation blocks A and B have been fitted and the optimal parameters and models have been selected. Then these parameters are applied to the reservoir prediction in blocks C and D which are in low exploitation degree. Six oil-bearing reservoirs in the 2nd member of the Shuangyang Formation in the south of block C have been predicted with this method. The change from qualitative analysis to semi-quantitative and quantitative analyses in reservoir research provides more reliable foundation for the exploration and development of lithologic reservoirs.
-
[1] 徐翔军.伊通地堑古近系层序地层学分析及重点区岩性地层圈闭分布规律.长春:吉林大学,2007:76-113. [2] 李本才.伊通地堑岔路河断陷古近系层序地层学研究及非构造圈闭预测.北京:中国地质大学,2006:38-40. [3] 马良,周江羽,王旭丽,等.伊通盆地岔路河断陷始新统地层对比[J].石油实验地质,2008,30(3):260-269. [4] 王永春.伊通地堑含油气系统与油气成藏[M].北京:石油工业出版社,2001:10-21. [5] Van Wagoner J C,Mitchum R M,Campion K M,et al.Siliciclastic sequence stratigraphy in well logs,cores and outcrops:Concepts for high resolution correlation of time and facies[J].AAPG Methods in Exploration,1990(7):55. [6] Mitchum Jr R M,Van Wagoner J C.High-frequency sequences and their stacking patterns:sequence stratigraphic evidence of high-frequency eustatic cycles[J].Sedimentary Geology,1991,70:131-160. [7] Cross T A.High-resolutions stratigraphic correlation from the perspective of base-level cycles and sediment accommodations.Proceedings of Northwestern European Sequence Stratigraphy Congress,1994:105-123. [8] 威尔格斯C K.层序地层学原理:海平面变化综合分析[M].徐怀大,等译.北京:石油工业出版社,1993:155-183. [9] 邓宏文.高分辨率层序地层学:原理及应用[M].北京:地质出版社,2002:16-22. [10] Escalona A,Mann P.Sequence-stratigraphic analysis of Eocene clastic foreland basin deposits in central Lake Maracaibo using high-resolution well correlation and 3-D seismic data[J]. AAPG Bulletin,2006,90:581-623. [11] 郑荣才,彭军,吴朝容.陆相盆地基准面旋回的级次划分和研究意义[J].沉积学报,2001,19(2):249-255. [12] 陆永潮,任建业,李思田,等.伊通地堑的沉积充填序列及其对转换-伸展过程的响应[J].石油实验地质,1999,21(3):233-236. [13] 唐大卿,何生,陈红汉,等.伊通盆地断裂体系特征及其演化历史[J].吉林大学学报:地球科学版,2009,39(3):386-396. [14] 林畅松.沉积盆地的层序和沉积充填结构及过程响应[J].沉积学报,2009,27(5):849-862. [15] 秦雁群,邓宏文,侯秀林,等.海拉尔盆地乌尔逊凹陷北部高分辨率层序地层与储层预测[J].石油与天然气地质,2011,32(2):214-221. [16] 郑荣才,吴朝容,叶茂才.浅淡陆相盆地高分辨率层序地层研究思路[J].成都理工学院学报,2000,27(3):241-244. [17] 肖朝辉,王招明,吴金才,等.塔里木盆地石炭系层序地层划分及演化[J].石油实验地质,2011,33(3):244-254. [18] 朱红涛,Liu Keyu,杨香华.陆相湖盆层序构型及其岩性预测意义:以珠江口盆地惠州凹陷为例[J].地学前缘,2012,19(1):32-39. [19] 吴胜和,金振奎.储层建模[M].北京:石油工业出版社,1999:9-24. [20] 李少华,尹艳树,张昌民.储层随机建模系列技术[M].北京:石油工业出版社,2007:60-69. [21] 韩登林,张昌民,李忠,等.油气田开发中后期的储层三步建模法:以赵凹油田为例[J].地质科技情报,2007,26(5):109-112. -
计量
- 文章访问数: 1899
- HTML全文浏览量: 66
- PDF下载量: 901
- 被引次数: 0