摘要
杜坡油田储层受构造和河道砂体的双重控制,断裂极为发育,储层横向变化快,阻碍了油田后期的开发生产。为了更加清楚地认识储层平面展布特征,亟需通过地震反演技术来刻画储层砂体的发育和分布情况。通过分析研究区地质、地震及测井等资料,对核三段Ⅱ—Ⅵ油组进行储层预测。根据约束稀疏脉冲反演的基本原理,首先对数据进行可行性分析;其次进行井震联合标定、子波提取;然后利用解释的层位、断层构建框架模型;最后在低频模型基础上通过设置重要的反演参数完成约束稀疏脉冲反演研究。利用反演成果分析了杜坡油田核三段砂体的发育和分布情况,这在一定程度上刻画了储层的展布特征,为杜坡油田下一步开发调整提供了参考依据。
The reservoir in Dupo Oilfield is controlled by structure and channel sand body, and has fast lateral variation and well developed fracture, which restricts the development of oilfield in the late production. In order to make clear the reservoir distribution characteristics, we need to depict the development and distribution of sand body through seismic inversion technique. Based on the geologic, seismic and logging data, this paper carried out reservoir prediction of Ⅱ-Ⅵ oil groups of the third member of Hetaoyuan Formation. According to the basic principle of constrained sparse spike inversion, carried out feasibility analysis, well-to-seismic calibration and wavelet extraction, formed frame model by using interpreted formation and fault, then established low frequency model, and finally completed the study on constrained sparse spike inversion by setting important parameters. Through analyzing inversion results, the development and distribution of sand body of the third member of Hetaoyuan Formation in Dupo Oilfield are clear, which depicts the distribution characteristics of reservoir to a certain extent and provides a reference for the next development and adjustment of Dupo Oilfield.
引文
[1]董艳蕾,朱筱敏,胡廷惠,等.泌阳凹陷核三段地震沉积学研究[J].地学前缘,2011,18(2):284-293.Dong Yanlei,Zhu Xiaomin,Hu Tinghui,et al.Research on seismic sedimentology of He-3 Formation in Biyang Sag[J].Earth Science Frontiers,2011,18(2):284-293.
[2]赵万金,张巧凤,苏勤.莫里青断陷地震储层特征及预测技术研究[J].岩性油气藏,2010,22(4):100-103.Zhao Wanjin,Zhang Qiaofeng,Su Qin.Seismic reservoir characteristics and prediction technique for Moliqing Rift[J].Lithologic Reservoirs,2010,22(4):100-103.
[3]刘阳,许静,周川,等.储层反演技术的应用与实践——以官78断块为例[J].内蒙古石油化工,2014(8):101-102.Liu Yang,Xu Jing,Zhou Chuan,et al.Application and practice of reservoir inversion technique—with Guan 78 fault block as an example[J].Inner Mongolia Petrochemical Industry,2014(8):101-102.
[4]卢占武,韩立国.波阻抗反演技术研究进展[J].世界地质,2002,21(4):372-377.Lu Zhanwu,Han Liguo.The development of the research of the wave impedance inversion technique[J].World Geology,2002,21(4):372-377.
[5]王康宁.高分辨率叠后反演方法研究及在塔河某区的应用[D].北京:中国地质大学,2010.Wang Kangning.The research of high-resolution post-stack inversion methods and application in Ta He Oil Field[D].Beijing:China University of Geosciences,2010.
[6]李国良,蔡佳,甘华军,等.南阳凹陷边界断裂带砂体反演及预测[J].岩性油气藏,2010,22(2):99-102.Li Guoliang,Cai Jia,Gan Huajun,et al.Seismic inversion and prediction of sand bodies in boundary fault zones of Nanyang Sag[J].Lithologic Reservoirs,2010,22(2):99-102.
[7]王西文,石兰亭,雍学善,等.地震波阻抗反演方法研究[J].岩性油气藏,2007,19(3):80-100.Wang Xiwen,Shi Lanting,Yong Xueshan,et al.Study on seismic impedance inversion[J].Lithologic Reservoirs,2007,19(3):80-100.
[8]王东燕.地震约束波阻抗反演及应用研究[D].西安:长安大学,2006.Wang Dongyan.Application and research on seismic constrained P-impedance inversion[D].Xi’an:Chang’an University,2006.
[9]邢贞贞.提高地震分辨率的反演方法研究[D].长春:吉林大学,2009.Xing Zhenzhen.A study on inversion method for seismic resolution improvement[D].Changchun:Jilin University,2009.
[10]李巧灵,彭苏萍,张辉,等.基于Wyllie平均方程的煤系岩溶陷落带富水性预测[J].煤田地质与勘探,2014,42(1):49-52.Li Qiaoling,Peng Suping,Zhang Hui,et al.The water-abundance prediction of karst collapse zone based on Wyllie time average equation[J].Coal Geology&Exploration,2014,42(1):49-52.
[11]舒克栋,张才智,程超,等.约束稀疏脉冲反演在泌阳凹陷南部陡坡带中的应用[J].新疆石油天然气,2011,7(1):16-20.Shu Kedong,Zhang caizhi,Cheng chao,et al.The application of reservoir sparse spike inversion in South Slope of Biyang Depression[J].Xinjiang Oil&Gas,2011,7(1):16-20.
[12]胡俊峰,许升辉,冯方,等.南美W油田T5B砂岩储层预测综合研究[J].岩性油气藏,2013,25(4):95-100.Hu Junfeng,Xu Shenghui,Feng Fang,et al.Research on reservoir prediction of T5B sand in W oilfield,South America[J].Lithologic Reservoirs,2013,25(4):95-100.
[13]王波.测井约束地震反演技术分析及其应用[J].断块油气田,2006,13(5):23-24.Wang Bo.Technology analysis and application of logging-constrained seismic inversion[J].Fault-block Oil&Gas Field,2006,13(5):23-24.
[14]李进.霸县凹陷文安斜坡沙二段—东营组地震反演研究[D].武汉:长江大学,2009.Li Jin.Research on seismic inversion in the second member of Sha Hejie Formation-Dongying Formation of Wen’an Slope,Baxian Depression[D].Wuhan:Yangtze University,2009.
[15]许辉群,桂志先.利用测井约束地震反演预测砂体展布——以YX地区砂四段三砂组砂体为例[J].天然气地球科学,2006,17(4):547-551.Xu Huiqun,Gui Zhixian.Application of jason inversion to prediction of Sandstone—Three sand of No.4 sand body in YX Area is for Example[J].Natural Gas Geoscience,2006,17(4):547-551.
[16]朱金富,于炳松,姚纪明,等.约束稀疏脉冲波阻抗反演在油田开发中的应用[J].内蒙古石油化工,2008(14):114-116.Zhu Jinfu,Yu Bingsong,Yao Jiming,et al.Application of constrained sparse spike inversion in reservoir estimation[J].Inner Mongolia Petrochemical Industry,2008(14):114-116.
[17]朱金富,于炳松,姚纪明,等.约束稀疏脉冲波阻抗反演在精细油藏描述中的应用[J].沉积与特提斯地质,2009,29(1):96-101.Zhu Jinfu,Yu Bingsong,Yao Jiming,et al.Application of the constrained sparse spike inversion to reservoir assessment[J].Sedimentary Geology and Tethyan Geology,2009,29(1):96-101.