【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。更多还原

【Abstract】 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.更多还原