综合预测误差滤波分析方法在地层划分及等时对比中的应用

doi:10.11743/ogg20130420

石油与天然气地质 ›› 2013, Vol. 34 ›› Issue (4): 564-572.doi: 10.11743/ogg20130420

• 技术方法 • 上一篇

综合预测误差滤波分析方法在地层划分及等时对比中的应用

刘洛夫^1,2, 徐敬领^3,4, 高鹏⁵, 邹长春^3,4, 王远征⁶, 徐新宇⁷

1. 中国石油大学油气资源与探测国家重点实验室, 北京 102249;
2. 中国石油大学地球科学学院, 北京 102249;
3. 中国地质大学地下信息探测技术与仪器教育部重点实验室, 北京 100083;
4. 中国地质大学地球物理与信息技术院, 北京 100083;
5. 中国石油大庆油田有限责任公司第二采油厂地质大队, 黑龙江大庆 163257;
6. 中国石油冀东油田公司陆上油田作业区工艺研究所, 河北唐海 063200;
7. 中国石油海外勘探开发分公司, 北京 100034

收稿日期:2013-03-05 修回日期:2013-07-05 出版日期:2013-08-28 发布日期:2013-08-27
作者简介:刘洛夫(1958- ),男,教授,石油地质。E-mail:liulf@cup.edu.cn。
基金资助:
国土资源部公益性行业科研专项(201311107);中国石油科技创新基金项目(2012D-5006-0103);中央高校基本科研业务费专项资金项目(2652011282)。

Application of comprehensive prediction error filter analysis to stratigraphic division and isochronous correlation

Liu Luofu^1,2, Xu Jingling^3,4, Gao Peng⁵, Zou Changchun^3,4, Wang Yuanzheng⁶, Xu Xinyu⁷

1. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China;
2. School of Geosciences, China University of Petroleum, Beijing 102249, China;
3. Ministry of Education Key Laboratory of Geo-detection, China University of Geosciences, Beijing 100083, China;
4. School of Geophysics and Information Technology, China University of Geosciences, Beijing 100083, China;
5. No.2 Oil Production Plant, Daqing Oilfield Conpany, Daqing, Heilongjiang 163257, China;
6. Technology Research Institute of Onshore Oilfield, PetroChina Jidong Oilfield Company, PetroChina Tanghai, Hebei 063200, China;
7. PetroChina International Exploration & Development Company, Beijing 100034, China

Received:2013-03-05 Revised:2013-07-05 Online:2013-08-28 Published:2013-08-27

摘要/Abstract

摘要： 针对目前地层划分、对比存在人为性、多解性等问题,首先仔细分析了野外露头与岩心的沉积序列特点,研究了地层的叠置序列与旋回结构;进而建立了相应的地质模型,通过地质模型把地层的旋回结构转化成数值模拟信号;最后根据信号特征,提出了综合预测误差滤波分析方法,并研究出该方法的原理、步骤、功能。在此基础上,利用该方法对模拟信号进行处理分析,提取出反映地层叠置及旋回结构的频谱趋势线,并搞清频率趋势线的地质意义乃间接反映了当时的沉积环境及基准面变化过程。由此,可以找出反映同一等时地层界面的拐点及变化趋势,根据拐点及变化趋势完成了地层的等时对比。这为地层精确划分及真正意义上的等时对比奠定了基础。通过对实际测井数据的处理,验证了该方法的有效性。

关键词: 测井数据, 滤波分析, 等时对比, 地层划分

Abstract: Aiming at solving the problems such as difficulty in stratigraphic division,subjectivity and ambiguity of stratigraphic correlation,this paper studied the superimposition sequence and cycle structures of strata and established corresponding geological models based on the analysis of the sedimentary sequences on outcrops and cores.We converted the structures of sedimentary cycles into signals of numerical simulation via the geological model.According to the features of the signals,we proposed the comprehensive prediction error filter method and presented its principle,steps and functions.Frequency trend lines that can reflect the stratigraphic superimposition and structures of sedimentary cycles were extracted through processing of the simulation signals,and were linked indirectly with the changes of the sedimentary environment and base level.Therefore,we can find the inflection points and trends that reflect the same isochronous stratigraphic surfaces.According to the inflection points and trends,we can perform isochronous stratigraphic comparison,providing a solid basis for precise stratigraphic division and isochronous comparison.Processing of real logging data shows that this method is valid.

Key words: logging data, filter analysis, isochronous correlation, stratigraphic division

中图分类号:

P631

刘洛夫,徐敬领,高鹏,等. 综合预测误差滤波分析方法在地层划分及等时对比中的应用[J]. 石油与天然气地质, 2013, 34(4): 564-572. doi: 10.11743/ogg20130420 Liu Luofu,Xu Jingling,Gao Peng,et al. Application of comprehensive prediction error filter analysis to stratigraphic division and isochronous correlation[J]. Oil & Gas Geology, 2013, 34(4): 564-572. doi: 10.11743/ogg20130420

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综合预测误差滤波分析方法在地层划分及等时对比中的应用

Application of comprehensive prediction error filter analysis to stratigraphic division and isochronous correlation

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