精细地震解释技术在油田开发中后期的应用

油田开发到中后期，要增储上产，就必须寻找新的储量，无论是寻找新的构造油藏还是岩性油藏，都必须准确落实构造，而单一地采用地震或测井资料进行构造成图都有局限性。针对老油田目前构造研究存在的问题，有机地结合测井和地震解释的优点，提出了油田开发阶段的精细地震解释技术，包含测井构造研究、测井层位深度建模、精细地震解释、建立研究区变速场、高精度变速场构造成图、有利区块分析和井位部署。该技术在大港唐家河油田精细构造研究中取得了很好的效果，在勘探开发程度很高的G388-2井断块，根据研究成果提供的1口井位获得高产油流。图7参6

Technique and application of precise seismic interpretation in the later development stage of oilfields

In the later period of oilfield development, oil productivity decreases progressively. To stabilize oil productivity, some new oil pools including structural, and lithologic oil pools must be discovered. With the conventional interpretation of either seismic or log data separately, the correct structure of oil pools would be hardly achived. A new technique of true 3D seismic interpretation in the oilfield development stage is presented, including log structure research, log layer depth modeling, precise seismic interpretation, various velocity modeling, precise structure map, good structure appraising and well position locating. A well was drilled in G388-2 fault block as an application of this technique in Tangjiahe Oilfield and greater amount of oil has been obtained.