临兴地区下石盒子组盒8段层序地层精细研究
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摘要
目前利用单一的常规测井曲线不能清晰地识别出地层的叠置序列与沉积旋回特征,在砂层组划分与对比过程中存在较强的多解性。针对这些问题,在最大熵谱分析(MESA)的基础上进行预测误差滤波分析(PEFA),进一步对PEFA曲线进行积分处理得到综合预测误差滤波分析(INPEFA)趋势线,该方法能够提取出所隐藏测井曲线中反映地层叠置序列及沉积旋回特征的频谱趋势线,通过分析其变化特征及其所代表的地质意义,厘定历史时期的沉积演变旋回过程。利用INPEFA方法对临兴地区盒8段自然伽马曲线进行处理,得到自然伽马曲线的频谱趋势线,并反复进行连井剖面对比,进而将盒8段地层划分为3个中期基准面旋回,在此基础上将其砂体划分为5套砂层组,并分别绘制了各砂层组的平面厚度等值线图。
At present,multiple solutions are exist in the division and correlation of sand formations when using of a single conventional logging curve. As a result,the stratigraphic sequence and sedimentary cycle characteristics of the strata can not be clearly identified. As a solution to the above problem,the Prediction Error Filter Analysis(PEFA) was carried out on the basis of Maximum Entropy Spectrum Analysis(MESA). And the Integral Prediction Error Filter Analysis(INPEFA) trend line was obtained by the further integration of the PEFA curve. This method can extract the spectrum trend line which reflects the stratigraphic stacking sequence and the sedimentary cycle characteristics that are hidden in the logging curve. The process of sedimentary evolution of the historical period was established through analyzing the variation characteristics and the geological significance of the spectrum trend lines. In this paper,the INPEFA method was used to analyze the natural gamma ray curve of He 8 formation in Linxing Area and then the spectrum trend line is obtained. By contrasting the well connection profile in detail,the He 8 formation was divided into three mid-term base-level cycles. And based on that,the sand body was divided into five sand groups and the thickness contour map was drawn respectively.
At present,multiple solutions are exist in the division and correlation of sand formations when using of a single conventional logging curve. As a result,the stratigraphic sequence and sedimentary cycle characteristics of the strata can not be clearly identified. As a solution to the above problem,the Prediction Error Filter Analysis(PEFA) was carried out on the basis of Maximum Entropy Spectrum Analysis(MESA). And the Integral Prediction Error Filter Analysis(INPEFA) trend line was obtained by the further integration of the PEFA curve. This method can extract the spectrum trend line which reflects the stratigraphic stacking sequence and the sedimentary cycle characteristics that are hidden in the logging curve. The process of sedimentary evolution of the historical period was established through analyzing the variation characteristics and the geological significance of the spectrum trend lines. In this paper,the INPEFA method was used to analyze the natural gamma ray curve of He 8 formation in Linxing Area and then the spectrum trend line is obtained. By contrasting the well connection profile in detail,the He 8 formation was divided into three mid-term base-level cycles. And based on that,the sand body was divided into five sand groups and the thickness contour map was drawn respectively.
引文
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[11]路顺行,张红贞,孟思,等.运用INPEFA技术开展层序地层研究[J].石油地球物理勘探,2007,42(6):703-708.Lu Shunxing,Zhang Hongzhen,Meng Si,et al.Application of INPEFA technique to carry out sequence-stratigraphic study[J].Oil Geophysical Prospecting,2007,42(6):703-708.
[12]朱红涛,黄众,刘浩冉,等.利用测井资料识别层序地层单元技术与力法进展及趋势[J].地质科技情报,2011,30(4):29-34.Zhu Hongtao,Huang Zhong,Liu Haoran,et al.Progress and developing tendency of technologies and methods used to recognize sequence stratigraphic units based on the well-log data[J].Geological Science and Technology Information,2011,30(4):29-34.
[13]刘洛夫,徐敬领,高鹏,等.综合预测误差滤波分析力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.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.
[14]赵承锦.鄂尔多斯盆地临兴地区上古生界天然气成藏机理与成藏模式研究[D].青岛:山东科技大学,2017.
[15]薛欢欢,李景哲,李恕军,等.INPEFA在高分辨率层序地层研究中的应用—以鄂尔多斯盆地油房庄地区长4+5油组为例[J].中国海洋大学学报(自然科学版),2015,45(7):101-106.Xue Huanhuan,Li Jingzhe,Li Shujun,et al.Application of INPEFA technique to research high resolution sequence stratigraphy:as an example of Youfangzhuang Area Chang 4+5 in Ordos Basin[J].Periodical of Ocean University of China,2015,45(7):101-106.
[16]王梦琪,谢俊,王金凯,等.基于INPEFA技术的高分辨率层序地层研究—以埕北油田东营组二段为例[J].中国科技论文,2016,11(9):982-987.Wang Mengqi,Xie Jun,Wang Jinkai,et al.Research of high resolution sequence stratigraphy using INPEFA:a case study in the second member of Dongying formation of Chengbei oilfield[J].China Science Paper,2016,11(9):982-987.
[17]陈树光,任建业,张建丽,等.INPEFA技术在滩坝砂体层序划分中的应用[J].大庆石油地质与开发,2015,34(3):9-15.Chen Shuguang,Ren Jianye,Zhang Jianli,et al.Application of INPEFA technique in the sequence division of the beach-bar sandbodies[J].Petroleum Geology and Oilfield Development in Daqing,2015,34(3):9-15.
[18]于均民,李红哲,刘震华,等.应用测井资料识别层序地层界面的方法[J].天然气地球科学,2006,17(5):736-738.Yu Junmin,Li Hongzhe,Liu Zhenhua,et al.Identifying sequence stratigraphy boundaries using well logging[J].Nature Gas Geoscience,2006,17(5):736-738.
[19]李景哲.伊通盆地莫里青油藏双二段高分辨率层序地层研究[D].青岛:中国海洋大学,2013.
[20]张金亮,张金功,洪峰,等.鄂尔多斯盆地下二叠统深盆气藏形成的地质条件[J].天然气地球科学,2005,16(4):527-534.Zhang Jinliang,Zhang Jingong,Hong Feng,et al.Geologic controls of deep basin gas accumulations in the lower Permian sequence of the Ordos Basin[J].Nature Gas Geoscience,2005,16(4):527-534.
[21]操应长,姜在兴,夏斌,等.利用测井资料识别层序地层界面的几种方法[J].石油大学学报(自然科学版),2003,27(2):23-26.Cao Yingchang,Jiang Zaixing,Xia Bin,et al.Some methods for identifying sequence boundaries and condensation sections using well logging[J].Journal of the University of Petroleum,China,2003,27(2):23-26.
[2]宋子齐,景成,孙宝佃,等.自然电位、自然伽马测井曲线在文15块的应用[J].断块油气田,2011,18(1):130-133.Song Ziqi,Jing Cheng,Sun Baodian,et al.Application of self-potential and gamma ray logging curses in B1ock Wen 15[J].FaultBlock Oil&Gas Field,2011,18(1):130-133.
[3]刘迪仁,谢伟彪,殷秋丽.水平井不平整界而地层中感应测井模拟及影响分析[J].石油物探,2012,51(1):86-90.Liu Diren,Xie Webiao,Yin Qiuli.Simulation and analysis on induction logging of the formation with uneven boundary in horizontal well[J].Geophysical Prospecting for Petroleum,2012,51(1):86-90.
[4]施冬,张春生.基于改进的GM(1,1)模型的高分辨率声波测井数据滤波处理[J].石油物探,2011,50(3):315-318.Shi Dong,Zhang Chunsheng.Filtering of high-resolution acoustic log data based on modified GM(1,1)model[J].Geophysical Pros-petting for Petroleum,2011,50(3):315-318.
[5]庄东志,周风鸣,司兆伟,等.南堡5号构造深层火山岩岩性测井识别技术[J].断块油气田,2011,18(6):743-745.Zhuang Dongzhi,Zhou Fengming,Si Zhaowei,et al.Logging identification of deep volcanic lithology in No.5 structure of Nanpu Sag[J].Fault-Block Oil&Gas Fie1d,2011,18(6):743-745.
[6]Van Wanger J C,Mitchum R M,Campion K M,et al.Siliciclastic sequence stratigrapy in well logs,cores and outcrops:concepts for high-resolution correlation of time and fades[J].American Association of Petroleum Geologists,Methods in Exploration Series,1990,7:1-55.
[7]Mitchum 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(2-4):131-160.
[8]Xu Jingling,Liu Luofu,Wang Guiwen,et al.Geophysics methods for the study of sedimentary cycles[J].Petroleum Science,2009,6(3):259-265.
[9]Rudman A J,Lankston R W Stratigraphic correlation of well logs by computer techniques[J].AAPG Bulletin,1973,57(3):577-588.
[10]王贵文,邓清平,唐为清.测井曲线谱分析方法及其在沉积旋回研究中的应用[J].石油勘探与开发,2002,29(1):93-95.Wang Guiwen,Deng Qingping,Tang Weiqing.The application of spectral analysis of logs in depositional cycle studies[J].Petroleum Exploration and Development,2002,29(1):93-95.
[11]路顺行,张红贞,孟思,等.运用INPEFA技术开展层序地层研究[J].石油地球物理勘探,2007,42(6):703-708.Lu Shunxing,Zhang Hongzhen,Meng Si,et al.Application of INPEFA technique to carry out sequence-stratigraphic study[J].Oil Geophysical Prospecting,2007,42(6):703-708.
[12]朱红涛,黄众,刘浩冉,等.利用测井资料识别层序地层单元技术与力法进展及趋势[J].地质科技情报,2011,30(4):29-34.Zhu Hongtao,Huang Zhong,Liu Haoran,et al.Progress and developing tendency of technologies and methods used to recognize sequence stratigraphic units based on the well-log data[J].Geological Science and Technology Information,2011,30(4):29-34.
[13]刘洛夫,徐敬领,高鹏,等.综合预测误差滤波分析力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.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.
[14]赵承锦.鄂尔多斯盆地临兴地区上古生界天然气成藏机理与成藏模式研究[D].青岛:山东科技大学,2017.
[15]薛欢欢,李景哲,李恕军,等.INPEFA在高分辨率层序地层研究中的应用—以鄂尔多斯盆地油房庄地区长4+5油组为例[J].中国海洋大学学报(自然科学版),2015,45(7):101-106.Xue Huanhuan,Li Jingzhe,Li Shujun,et al.Application of INPEFA technique to research high resolution sequence stratigraphy:as an example of Youfangzhuang Area Chang 4+5 in Ordos Basin[J].Periodical of Ocean University of China,2015,45(7):101-106.
[16]王梦琪,谢俊,王金凯,等.基于INPEFA技术的高分辨率层序地层研究—以埕北油田东营组二段为例[J].中国科技论文,2016,11(9):982-987.Wang Mengqi,Xie Jun,Wang Jinkai,et al.Research of high resolution sequence stratigraphy using INPEFA:a case study in the second member of Dongying formation of Chengbei oilfield[J].China Science Paper,2016,11(9):982-987.
[17]陈树光,任建业,张建丽,等.INPEFA技术在滩坝砂体层序划分中的应用[J].大庆石油地质与开发,2015,34(3):9-15.Chen Shuguang,Ren Jianye,Zhang Jianli,et al.Application of INPEFA technique in the sequence division of the beach-bar sandbodies[J].Petroleum Geology and Oilfield Development in Daqing,2015,34(3):9-15.
[18]于均民,李红哲,刘震华,等.应用测井资料识别层序地层界面的方法[J].天然气地球科学,2006,17(5):736-738.Yu Junmin,Li Hongzhe,Liu Zhenhua,et al.Identifying sequence stratigraphy boundaries using well logging[J].Nature Gas Geoscience,2006,17(5):736-738.
[19]李景哲.伊通盆地莫里青油藏双二段高分辨率层序地层研究[D].青岛:中国海洋大学,2013.
[20]张金亮,张金功,洪峰,等.鄂尔多斯盆地下二叠统深盆气藏形成的地质条件[J].天然气地球科学,2005,16(4):527-534.Zhang Jinliang,Zhang Jingong,Hong Feng,et al.Geologic controls of deep basin gas accumulations in the lower Permian sequence of the Ordos Basin[J].Nature Gas Geoscience,2005,16(4):527-534.
[21]操应长,姜在兴,夏斌,等.利用测井资料识别层序地层界面的几种方法[J].石油大学学报(自然科学版),2003,27(2):23-26.Cao Yingchang,Jiang Zaixing,Xia Bin,et al.Some methods for identifying sequence boundaries and condensation sections using well logging[J].Journal of the University of Petroleum,China,2003,27(2):23-26.