地震解释技术在缅甸Prome海湾盆地油田挖潜中的应用

 国内现有的地震解释技术在勘探、开发领域的应用尤其在枯竭期油田挖潜中的应用已取得了显著的效果，形成了一套相对成熟、行之有效的技术系列。本文介绍了缅甸Prome 海湾次盆地一个有近40年开发历史的Pyay油田的地质特征、勘探开发历史, 借鉴国内油田挖潜思路，开展了对Pyay油田的综合评价研究工作，详细介绍了油田挖潜中使用的针对性地震解释技术，包括三维精细解释技术、综合速度分析与变速成图技术、低速异常属性分析技术、储层横向预测技术，其中三维精细解释技术与深层勘探层系异常属性研究具有特色，对其他具有类似特征的枯竭期油田挖潜具有参考价值。地震解释技术在Pyay油田挖潜中的应用效果表明，充分利用地质、地球物理信息，尤其是前人未引起重视的层系与异常信息是老油田挖潜的关键；多种地震解释技术的综合应用是老油田挖潜的基础；新的含油气区块、新的目的层系是老油田挖潜的潜力。

Application of seismic interpretation technique to tap potential of oilfield in Prome Bay basin, Burma

At home, application of available seismic interpretation techniques to exploration and development fields, especially to tap the potential of depleted oilfields, has been achieved significant success, forming a set of relatively matured and effective technical series. The paper introduced the geologic feature and exploration/development history of Pyay oilfield of secondary basin in Prome Bay, Burma, which has had nearly 40 years' development history. By the aid of the idea developed in taping the potential of oilfield at home, we developed the study of comprehensive evaluation of Pyay oilfield, introduced in detail the seismic interpretation techniques effectively used for taping the potential of oilfield, including 3-D fine interpretation, comprehensive velocity analysis and velocity-variable mapping, analysis of low-velocity-anomalous attributes and horizontal prediction of reservoir, among which the 3-D fine interpretation and study of anomalous attributes in deep prospecting series of strata have their characters with referential value to tap the potential of other depleted oilfields having similar properties. It is shown by the effects of applying the seismic interpretation technique to tap the potential of Pyay oilfield fully utilizing geologic and geophysical information, especially the series of strata and anomalous information the predecessors that did not pay more attentions to, is the key of taping the potential of mutual oilfields; the comprehensive application of multiple seismic interpretation techniques are the basis of taping the potential of mutual oilfields; and new oil/gas-bearing blocks and objective series of strata are the potential of taping the potential of mature oilfields.