CAJ | 학술논문

勘探开发实践证实,铁匠炉斜坡带沙河街组岩性-地层油气藏油水关系复杂。由于叠前相对振幅保持处理的地震资料比叠后地震资料包含更丰富的岩性和流体信息,因此利用叠前地震资料进行油气检测的敏感性更强。该文主要基于Zoeppritz方程的Aki＆Richards和Shuey近似公式,利用叠前地震资料开展了油气检测方面的研究,即在进行AVO正演模拟确定流体响应的AVO异常类型基础上,提取过井点的角道集并识别AVO异常,最后对AVO反演的属性体进行解释,识别油气异常分布区域。该方法很好地指导了铁匠炉地区的勘探部署工作。
감탐개발실천증실,철장로사파대사하가조암성-지층유기장유수관계복잡。유우첩전상대진폭보지처리적지진자료비첩후지진자료포함경봉부적암성화류체신식,인차이용첩전지진자료진행유기검측적민감성경강。해문주요기우Zoeppritz방정적Aki＆Richards화Shuey근사공식,이용첩전지진자료개전료유기검측방면적연구,즉재진행AVO정연모의학정류체향응적AVO이상류형기출상,제취과정점적각도집병식별AVO이상,최후대AVO반연적속성체진행해석,식별유기이상분포구역。해방법흔호지지도료철장로지구적감탐부서공작。
The lithologic-stratigraphic reservoirs of Shahejia Formation in Tiejianglu slope belt have complex oil/water relationship.The prestack seismic data with relative amplitude preservation contain more information about lithology and fluid than the poststack seismic data.Therefore,the prestack seismic data can be used for hydrocarbon detection.The primary application of prestack seismic data of Aki Richards and Shuey approximate expressions based on Zoeppritz equation in hydrocarbon detection is introduced.AVO forward modeling is conducted to define fluid-corresponding AVO abnormity,then to identify AVO abnormity across well point trace gather,and finally to interpret AVO multi-attribute body,thus to find abnormal hydrocarbon distribution zones and guide the exploration deployment in the study area.