黄骅坳陷孔南地区沙河街组井震基准面旋回匹配
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摘要
提出了井震基准面旋回匹配的概念与方法。该方法通过测井和地震层序地层分析,以高分辨率层序地层学的基准面旋回为约束,利用合成记录建立测井和地震反射之间的匹配关系。采用该方法可获得更可靠的井震匹配关系,并能赋予各主要地震反射轴的层序地层意义,搭建起地震层序地层与高分辨率层序地层之间的桥梁。孔南地区沙河街组30多口井的井震基准面旋回匹配研究结果表明:层序Ⅰ包括4个主要反射轴,A1、A2和A3分别代表了层序Ⅰ内部的3个四级层序初始洪泛面,A4反射轴相当于层序ⅠC3U旋回上升半旋回的初始洪泛面;层序Ⅱ内部主要包括B1和B2 2个正相位连续反射轴,分别代表了层序Ⅱ内部2个基准面旋回的洪泛面;层序Ⅲ内部主要发育了C1和C2 2个明显的正相位较连续的反射轴,其中C1相当于层序Ⅲ的C2U旋回与C3D旋回的分界,C2反射轴对应于层序ⅢC3U旋回的初始洪泛面。各三级层序内部的正相位反射轴通常为四级层序的初始洪泛面或最大洪泛面。
The authors propose the concept and method of seismic-log and base level cycle matching.The method established relationship between well logging and seismic reflection by the synthetic notes which is anlysised the well logging and sequence stratigraphy,and as well,the relationships must have been restricted by the base level cycle in the high resolution sequence stratigraphy.This method will get more reliable relationship between well and seism,and give the main significance of seismic reflection meaning that is in the sequence stratigraphic.At the same time,it bridge gap between seismic sequences and high resolution sequence stratigraphy.The 30 wells results of seismic-log and base level cycle matching show that sequence Ⅰinclude 4 reflection axis.A1,A2 and A3 are representing three first flooding surfaces in the four-order sequences.A4 is the first flooding surfaces in high cycle of C3U of sequence Ⅰ.Sequence Ⅱinclude B1 and B2.It is the main seimic reflection horizon and representing flooding surface in the Sequence Ⅱ.Sequence Ⅲ include C1 and C2.C1 is the boundary between C2U and C3U.C2 is the first flooding surface in the C3U cycle.The seimic reflection horizons which is in the third-order sequence are representing the first or max flooding surface which in the forth-order sequence.
The authors propose the concept and method of seismic-log and base level cycle matching.The method established relationship between well logging and seismic reflection by the synthetic notes which is anlysised the well logging and sequence stratigraphy,and as well,the relationships must have been restricted by the base level cycle in the high resolution sequence stratigraphy.This method will get more reliable relationship between well and seism,and give the main significance of seismic reflection meaning that is in the sequence stratigraphic.At the same time,it bridge gap between seismic sequences and high resolution sequence stratigraphy.The 30 wells results of seismic-log and base level cycle matching show that sequence Ⅰinclude 4 reflection axis.A1,A2 and A3 are representing three first flooding surfaces in the four-order sequences.A4 is the first flooding surfaces in high cycle of C3U of sequence Ⅰ.Sequence Ⅱinclude B1 and B2.It is the main seimic reflection horizon and representing flooding surface in the Sequence Ⅱ.Sequence Ⅲ include C1 and C2.C1 is the boundary between C2U and C3U.C2 is the first flooding surface in the C3U cycle.The seimic reflection horizons which is in the third-order sequence are representing the first or max flooding surface which in the forth-order sequence.
引文
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[8]陈文超,汪文秉,高静怀.多分辨分析理论在井-震匹配中的应用[J].地球物理学报,1999,42(增刊1):219-224.Chen Wen-chao,Wang Wen-bing,Gao Jing-huai.Matching of Seismic with Sonic Log Using the Theoryof Multiresolution Analysis[J].Chinese Journal ofGeophysic,1999,42(Sup.1):219-224.
[9]刘红伟,刘洪,秦月霜.基于约束插值算法的井资料外推[J].应用地球物理,2008,5(4):307-313.Liu Hong-wei,Liu Hong,Qin Yue-shuang.Extrapolate Well Logs Based on the ConstrainedInterpolation Algorithm[J].Applied Geophysics,2008,5(4):307-313.
[2]任建业,廖前进,卢刚臣,等.黄骅坳陷构造变形格局与演化过程分析[J].大地构造与成矿学,2010,34(4):461-472.Ren Jian-ye,Liao Qian-jin,Lu Gang-chen,et al.Deformation Framework and Evolution of theHuanghua Depression,Bohai Gulf[J].Geotectonica etMetallogenia,2010,34(4):461-472.
[3]邹海峰,徐学纯,高福红,等.黄骅凹陷中区和南区古地温特征及其与油气运聚的关系[J].吉林大学学报:地球科学版,2003,33(2):173-176.Zou Hai-feng,Xu Xue-chun,Gao Fu-hong,et al.TheFeatures of the Paleo-Geotherm in HuanghuaDepression and the Relationship Between the Featuresand the Migration Accumulation of Oil-Gas[J].Journalof Jilin University:Earth Science Edition,2003,33(2):173-176.
[4]邓宏文.美国层序地层研究中的新学派:高分辨率层序地层学[J].石油与天然气地质,1995,16(2):89-97.Deng Hong-wen.A New School of Thought inSequence Stratigraphic Studies in US:High-ResolutionSequence Stratigraphy[J].Oil&Gas Geology,1995,16(2):89-97.
[5]邓宏文,王洪亮,李熙喆.层序地层基准面的识别、对比技术及应用[J].石油与天然气地质,1996,17(3):177-184.Deng Hong-wen,Wang Hong-liang,Li Xi-zhe.Identi-fication and Correlation Techniques of SequenceStratigraphic Base-Levels and Their Application[J].Oil&Gas Geology,1996,17(3):177-184.
[6]凌云,郭建明,郭向宇.油藏描述中的井震时深转换技术研究[J].石油物探,2011,50(1):1-13.Ling Yun,Guo Jian-ming,Guo Xiang-yu.Research onTime-Depth Conversion by Well-to-Seismic inReservoir Characterizeation[J].GeophysicalProspecting for Petroleum,2011,50(1):1-13.
[7]张华军,王海兰,肖富森,等.基于反射层的变层速度模型时深转换方法[J].天然气工业,2003,23(1):36-38.Zhang Hua-jun,Wang Hai-lan,Xiao Fu-sen,et al.Time-Depth Conversion Method in View of VariableInterval Velocity Model of Reflection Horizon[J].Natural Gas Industry,2003,23(1):36-38.
[8]陈文超,汪文秉,高静怀.多分辨分析理论在井-震匹配中的应用[J].地球物理学报,1999,42(增刊1):219-224.Chen Wen-chao,Wang Wen-bing,Gao Jing-huai.Matching of Seismic with Sonic Log Using the Theoryof Multiresolution Analysis[J].Chinese Journal ofGeophysic,1999,42(Sup.1):219-224.
[9]刘红伟,刘洪,秦月霜.基于约束插值算法的井资料外推[J].应用地球物理,2008,5(4):307-313.Liu Hong-wei,Liu Hong,Qin Yue-shuang.Extrapolate Well Logs Based on the ConstrainedInterpolation Algorithm[J].Applied Geophysics,2008,5(4):307-313.
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