极复杂断块井震结合断层描述模式研究及应用

Research and Application of Wel-Seismic Combination Fault Description Model in Extremely Complex Fault Blocks

极复杂断块油藏断裂系统极其复杂,地层对比、剖面识别断层难度大。构造研究过程中经常会出现井震不吻合、地层对比界限不清楚、临井油水关系矛盾、井上落实的小断点位置地震剖面显示弱等情况。针对这些井震矛盾,建立了井震结合断层描述的四个模式,提高了井震结合断层解释的精度,为开发调整挖潜提供了技术支持。

Fault system of extremely complex fault block reservoir is extremely complex,and it is difficult to identify faults by stratigraphic correlation and profile.In the process of structural research,there are many problems,such as inconsistency between well and earthquake,unclear boundaries of stratigraphic correlation,contradiction between oil and water in the vicinity of wells,weak seismic profiles of small breakpoints implemented on wells,and so on.In view of these contradictions between wells and earthquakes,four models for describing wells and earthquakes combined with faults are established.It improves the accuracy of well seismic interpretation combined with fault interpretation,and provides technical support for development,adjustment and tapping potential.