基于马蒙算法的反演及其在储集层预测中的应用
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摘要
论述了基于马尔科夫链-蒙特卡洛算法反演的主要原理,重点阐述了该方法的3个关键环节,即测井资料均一化处理、地震子波提取及合成地震记录和构造建模约束马蒙算法反演。应用结果表明,该方法能够提高砂泥岩薄互层条件下砂体识别的准确程度,更丰富地显示断层两侧砂体发育的细节。同时该方法也有助于准确定位河道砂边界和明确主力砂体之间的接触关系,从而为后期剩余油挖潜和井网结构调整提供依据。
The main principle of inversion procedure is presented based on the Markov chain and Monte-Carlo method(MCMC).Three key links,such as homogenization of logging data,seismic wavelet acquisition,synthetic seismogram and structural modeling and constraint MCMC inversion,are highlighted.The applied results indicate that using this method can improve the accurate degree of identification of sand body in thin sand-mud interbed and enrich the details of sand-body distribution in two flanks on fault.Also,this method is helpful to get an exact location to the boundary of channel sand and determine the contact relationship between the major sand bodies,hence providing basis for tapping potential of the remaining oil and well pattern structural adjustment in late period of an oilfield development.
The main principle of inversion procedure is presented based on the Markov chain and Monte-Carlo method(MCMC).Three key links,such as homogenization of logging data,seismic wavelet acquisition,synthetic seismogram and structural modeling and constraint MCMC inversion,are highlighted.The applied results indicate that using this method can improve the accurate degree of identification of sand body in thin sand-mud interbed and enrich the details of sand-body distribution in two flanks on fault.Also,this method is helpful to get an exact location to the boundary of channel sand and determine the contact relationship between the major sand bodies,hence providing basis for tapping potential of the remaining oil and well pattern structural adjustment in late period of an oilfield development.
引文
[1]卫晓婧,熊立华,万民,等.融合马尔科夫链-蒙特卡洛算法的改进通用似然不确定性估计方法在流域水文模型中的应用[J].水利学报,2009,40(4):464-473.
[2]李丽,陈秀娟,井西利.多尺度地震剩余静校正方法及应用[J].新疆石油地质,2011,32(4):402-405.
[3]张国栋,刘萱,田丽花,等.综合应用地震属性与地震反演进行储层描述[J].石油地球物理勘探,2010,45(1):137-144.
[4]夏吉庄.多尺度资料匹配构造建模技术及应用[J].石油天然气学报(江汉石油学院学报),2010,32(4):257-260.
[5]刘文岭.地震约束储层地质建模技术[J].石油学报,2008,29(1):64-68.
[6]邹起阳,阎振华,徐阳东,等.应用Petrel进行构造建模的研究[J].长江大学学报(自然科学版),2011,8(2):62-64.
[2]李丽,陈秀娟,井西利.多尺度地震剩余静校正方法及应用[J].新疆石油地质,2011,32(4):402-405.
[3]张国栋,刘萱,田丽花,等.综合应用地震属性与地震反演进行储层描述[J].石油地球物理勘探,2010,45(1):137-144.
[4]夏吉庄.多尺度资料匹配构造建模技术及应用[J].石油天然气学报(江汉石油学院学报),2010,32(4):257-260.
[5]刘文岭.地震约束储层地质建模技术[J].石油学报,2008,29(1):64-68.
[6]邹起阳,阎振华,徐阳东,等.应用Petrel进行构造建模的研究[J].长江大学学报(自然科学版),2011,8(2):62-64.
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