喇嘛甸油田精细构造描述及调整挖潜

FINE STRUCTURE CHARACTERIZATION,ADJUSTMENT AND POTENTIAL TAPPING FOR LAMADIAN OILFIELD

针对喇嘛甸油田密井网区的开发需求和构造认识存在的问题,分析了影响构造解释精度的关键因素,提出了油田密井网区井震结合精细构造研究及描述技术,主要包括井资料的处理分析、精细标定及层位追踪、建立精细三维速度场、井震匹配精细断层解释、深度域井震断层匹配及建模、地震约束层位建模、精细构造的成图及再认识。该技术能够克服地震速度影响,精准表征井间微幅度构造,在大庆喇南区块的精细构造描述研究中得到应用,在借助高效井、水平井及补充钻井的调整挖潜中见到了很好效果。

For the development requirements and existing problems in the structural understandings of dense-well-pat- tern blocks in Lamadian Oilfield, the key factors of influencing the structure interpretation precision are analyzed, the studying and characterizing techniques are presented for fine structures by well-seismic integration： process and ana- lyses of the well data, fine calibration and horizon tracking, fine 3D velocity field establishment, fine fault interpre- tation by well-seismic matching, well-seismic fault matching and modeling in depth domain, horizon modeling con- strained by seismic attributes, mapping and re-recognition of the fine structures. The technique can overcome the in- fluence of the seismic velocity, accurately characterize the microstructures among the wells and moreover is applied in the characterizing study of the fine structures in Sanan blocks of Daqing Oilfield ; much better results are achieved in the adjustment and potential tapping by high-efficiency well, horizontal well and offset drilling.