复杂断块油气藏地震解释技术研究

Study on Seismic Interpretation Technology of Complicated Fault-Block Hydrocarbon Reservoir

随着勘探开发工作的深入,各油区都已进入高程度勘探开发阶段。形态清楚、规模较大的构造油气藏越来越少,而岩性、地层等复杂隐蔽型油气藏所占比例逐年增加。但这类油藏构造复杂、隐蔽性强,常规解释难以识别。地震解释技术是解决此类问题行之有效的方法。以东营凹陷中央背斜带为例,系统地总结了地震正演模拟、相干分析等地震解释技术的原理、方法及在复杂断块油气藏勘探开发中的应用情况,取得了较好的效果。

With the penetration of exploration and exploitation,every oilfield all get into the high-degree exploration and exploitation stage.The clear and bigger structure reservoir are less and less but the proportions of the stratigraphic and lithological traps of the complicated subtle oil-gas pools are bigger and bigger in oil and gas exploration.The complicated fault-block reservoir is a important subtle oil and gas reservoir.But the oil reservoirs are complicated and subtle in structure,which can not be distinguished with the usual ways.Applied really for many years,the seismic interpretation technology is a better way to solve the problem.In the paper,taking the Dongying depression central anticlinal belt as an example,we have systematically summed up the principles and ways of the seismic interpretation of the seismic forward modeling and the seismic coherent analysis as well as its application to the complicated fault-block oil reservoir in the exploration and exploitation.A better result was gained.