CAJ | 학술논문

利用地震进行储层预测是石油勘探的必要和必须技术,对高风险、高投入、钻井少的海上油气勘探来说具有更为重要的意义.地质-地震储层预测技术的核心是地震和地质的紧密结合.与勘探进程上由构造油气藏向隐蔽油气藏勘探转变相适应,地震-地质结合也必须由宏观、描述、类比层次向精细、成因、动态层次延伸,注重由分析不同沉积相带砂泥岩波阻抗关系出发,通过建立正演模型来确定不同地震属性的地质意义;注重将不同体系域地震反射特征的变化与A/S比值、现代三角洲类型联系起来,从而通过地震剖面及其平面特征刻画不同体系域砂体特征,为寻找不同类型隐蔽圈闭指明方向.储层预测从层序地层学应用到地震沉积学充分体现了地震与地质结合的两个层次.地质-地震储层预测技术为渤海海域近年来探明的储量快速增长做出了巨大的贡献,同时也促进了沉积储层研究的发展.
이용지진진행저층예측시석유감탐적필요화필수기술,대고풍험、고투입、찬정소적해상유기감탐래설구유경위중요적의의.지질-지진저층예측기술적핵심시지진화지질적긴밀결합.여감탐진정상유구조유기장향은폐유기장감탐전변상괄응,지진-지질결합야필수유굉관、묘술、류비층차향정세、성인、동태층차연신,주중유분석불동침적상대사니암파조항관계출발,통과건립정연모형래학정불동지진속성적지질의의;주중장불동체계역지진반사특정적변화여A/S비치、현대삼각주류형련계기래,종이통과지진부면급기평면특정각화불동체계역사체특정,위심조불동류형은폐권폐지명방향.저층예측종층서지층학응용도지진침적학충분체현료지진여지질결합적량개층차.지질-지진저층예측기술위발해해역근년래탐명적저량쾌속증장주출료거대적공헌,동시야촉진료침적저층연구적발전.
It is necessary and important to use seismic data to predict reservoir in oil and gas exploration, especially for offshore exploration characterized by high investment, high risk and small number of drilled wells. The core of geology-seismic technique of reservoir prediction is close combination of geology and seismic technology,which has experienced two steps from step of frame, description and analogy to that of precision, genesis and dynamics, corresponding to the exploration from structural hydrocarbon reservoir to subtle hydrocarbon reservoir. In the second step, emphasis must be basically paid on the acoustic impedance difference of mudstone and sandstone in different facies, and the further forward modeling to ascertain geological significance of various seismic attributes. Emphasis must also be paid on relationships among seismic characteristics of different stratigraphy tracts, A/S ratio and different types of modern deltas. Therefore, sand body characteristics can be accurately described through section and plane characteristics of seismic profiles with clue to find subtle trap. The application of stratigraphy to seismic sedimentology embodies the two steps of geology-seismic technique, which contributes a lot to fast increasing of reserve of Bohai in recent years, and also improves the study of sedimentology and reservoir.