摘要
碳酸盐岩储层流体预测是世界级的研究难题,通过对塔北隆起西部A区块奥陶系一间房组碳酸盐岩储层流体预测,提出了适合该区的流体预测方法。该方法利用从ΔvP/vP和ΔvS/vS计算出的AVO流体因子属性进行预测,原因是该属性对碳、氢有很好的响应。通过流体替换、叠前道集的预处理,采用二项式反演算法和叠前AVO反演得到AVO流体因子属性,最后应用流体因子属性进行流体预测,流体预测符合率达到85%。
Prediction of fluids in carbonate reservoirs is a major headache for the whole world.This paper puts forward the method applicable for predicting the fluids in the carbonate reservoir of Yijianfang Formation of Ordovician in Block A in western Tabei Uplift.This method is to predict by using the attribute of AVO fluid factors calculated from ΔvP/vP and ΔvS/vS,because the attribute response well to carbon-hydrogen.Through fluid displacement,prestack gather preprocessing,this paper obtains the attribute of AVO fluid factors using the binominal inversion method and prestack AVO inversion,and finally applies the attribute to fluid prediction,and the prediction agreement rate goes up to 85%.This lays a solid basis for the exploration of the oil and gas reservoir,and it could be good reference to carbonate exploration and development in similar blocks.
出处
《中国石油勘探》
CAS
2011年第1期60-62,79,共4页
China Petroleum Exploration
